Swiftdiff options
Diffstat (limited to '3rdParty/Breakpad/src/client/mac')
12 files changed, 4448 insertions, 0 deletions
diff --git a/3rdParty/Breakpad/src/client/mac/crash_generation/crash_generation_client.cc b/3rdParty/Breakpad/src/client/mac/crash_generation/crash_generation_client.cc new file mode 100644 index 0000000..ceeb3b3 --- /dev/null +++ b/3rdParty/Breakpad/src/client/mac/crash_generation/crash_generation_client.cc @@ -0,0 +1,72 @@ +// Copyright (c) 2010 Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include "client/mac/crash_generation/crash_generation_client.h" + +#include "client/mac/crash_generation/crash_generation_server.h" +#include "common/mac/MachIPC.h" + +namespace google_breakpad { + +bool CrashGenerationClient::RequestDumpForException( + int exception_type, + int exception_code, + int exception_subcode, + mach_port_t crashing_thread) { + // The server will send a message to this port indicating that it + // has finished its work. + ReceivePort acknowledge_port; + + MachSendMessage message(kDumpRequestMessage); + message.AddDescriptor(mach_task_self()); // this task + message.AddDescriptor(crashing_thread); // crashing thread + message.AddDescriptor(mach_thread_self()); // handler thread + message.AddDescriptor(acknowledge_port.GetPort()); // message receive port + + ExceptionInfo info; + info.exception_type = exception_type; + info.exception_code = exception_code; + info.exception_subcode = exception_subcode; + message.SetData(&info, sizeof(info)); + + const mach_msg_timeout_t kSendTimeoutMs = 2 * 1000; + kern_return_t result = sender_.SendMessage(message, kSendTimeoutMs); + if (result != KERN_SUCCESS) + return false; + + // Give the server slightly longer to reply since it has to + // inspect this task and write the minidump. + const mach_msg_timeout_t kReceiveTimeoutMs = 5 * 1000; + MachReceiveMessage acknowledge_message; + result = acknowledge_port.WaitForMessage(&acknowledge_message, + kReceiveTimeoutMs); + return result == KERN_SUCCESS; +} + +} // namespace google_breakpad diff --git a/3rdParty/Breakpad/src/client/mac/crash_generation/crash_generation_client.h b/3rdParty/Breakpad/src/client/mac/crash_generation/crash_generation_client.h new file mode 100644 index 0000000..527f577 --- /dev/null +++ b/3rdParty/Breakpad/src/client/mac/crash_generation/crash_generation_client.h @@ -0,0 +1,65 @@ +// Copyright (c) 2010 Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#ifndef GOOGLE_BREAKPAD_CLIENT_MAC_CRASH_GENERATION_CRASH_GENERATION_CLIENT_H_ +#define GOOGLE_BREAKPAD_CLIENT_MAC_CRASH_GENERATION_CRASH_GENERATION_CLIENT_H_ + +#include "common/mac/MachIPC.h" + +namespace google_breakpad { + +class CrashGenerationClient { + public: + explicit CrashGenerationClient(const char* mach_port_name) + : sender_(mach_port_name) { + } + + // Request the crash server to generate a dump. + // + // Return true if the dump was successful; false otherwise. + bool RequestDumpForException(int exception_type, + int exception_code, + int exception_subcode, + mach_port_t crashing_thread); + + bool RequestDump() { + return RequestDumpForException(0, 0, 0, MACH_PORT_NULL); + } + + private: + MachPortSender sender_; + + // Prevent copy construction and assignment. + CrashGenerationClient(const CrashGenerationClient&); + CrashGenerationClient& operator=(const CrashGenerationClient&); +}; + +} // namespace google_breakpad + +#endif // GOOGLE_BREAKPAD_CLIENT_MAC_CRASH_GENERATION_CRASH_GENERATION_CLIENT_H_ diff --git a/3rdParty/Breakpad/src/client/mac/crash_generation/crash_generation_server.h b/3rdParty/Breakpad/src/client/mac/crash_generation/crash_generation_server.h new file mode 100644 index 0000000..85bd5b5 --- /dev/null +++ b/3rdParty/Breakpad/src/client/mac/crash_generation/crash_generation_server.h @@ -0,0 +1,150 @@ +// Copyright (c) 2010 Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#ifndef GOOGLE_BREAKPAD_CLIENT_MAC_CRASH_GENERATION_CRASH_GENERATION_SERVER_H_ +#define GOOGLE_BREAKPAD_CLIENT_MAC_CRASH_GENERATION_CRASH_GENERATION_SERVER_H_ + +#include <stdint.h> + +#include <string> + +#include "common/mac/MachIPC.h" + +namespace google_breakpad { + +class ClientInfo; + +// Messages the server can read via its mach port +enum { + kDumpRequestMessage = 1, + kAcknowledgementMessage = 2, + kQuitMessage = 3 +}; + +// Exception details sent by the client when requesting a dump. +struct ExceptionInfo { + int32_t exception_type; + int32_t exception_code; + int32_t exception_subcode; +}; + +class CrashGenerationServer { + public: + // WARNING: callbacks may be invoked on a different thread + // than that which creates the CrashGenerationServer. They must + // be thread safe. + typedef void (*OnClientDumpRequestCallback)(void *context, + const ClientInfo &client_info, + const std::string &file_path); + + typedef void (*OnClientExitingCallback)(void *context, + const ClientInfo &client_info); + // If a FilterCallback returns false, the dump will not be written. + typedef bool (*FilterCallback)(void *context); + + // Create an instance with the given parameters. + // + // mach_port_name: Named server port to listen on. + // filter: Callback for a client to cancel writing a dump. + // filter_context: Context for the filter callback. + // dump_callback: Callback for a client crash dump request. + // dump_context: Context for client crash dump request callback. + // exit_callback: Callback for client process exit. + // exit_context: Context for client exit callback. + // generate_dumps: Whether to automatically generate dumps. + // Client code of this class might want to generate dumps explicitly + // in the crash dump request callback. In that case, false can be + // passed for this parameter. + // dump_path: Path for generating dumps; required only if true is + // passed for generateDumps parameter; NULL can be passed otherwise. + CrashGenerationServer(const char *mach_port_name, + FilterCallback filter, + void *filter_context, + OnClientDumpRequestCallback dump_callback, + void *dump_context, + OnClientExitingCallback exit_callback, + void *exit_context, + bool generate_dumps, + const std::string &dump_path); + + ~CrashGenerationServer(); + + // Perform initialization steps needed to start listening to clients. + // + // Return true if initialization is successful; false otherwise. + bool Start(); + + // Stop the server. + bool Stop(); + + private: + // Return a unique filename at which a minidump can be written. + bool MakeMinidumpFilename(std::string &outFilename); + + // Loop reading client messages and responding to them until + // a quit message is received. + static void *WaitForMessages(void *server); + + // Wait for a single client message and respond to it. Returns false + // if a quit message was received or if an error occurred. + bool WaitForOneMessage(); + + FilterCallback filter_; + void *filter_context_; + + OnClientDumpRequestCallback dump_callback_; + void *dump_context_; + + OnClientExitingCallback exit_callback_; + void *exit_context_; + + bool generate_dumps_; + + std::string dump_dir_; + + bool started_; + + // The mach port that receives requests to dump from child processes. + ReceivePort receive_port_; + + // The name of the mach port. Stored so the Stop method can message + // the background thread to shut it down. + std::string mach_port_name_; + + // The thread that waits on the receive port. + pthread_t server_thread_; + + // Disable copy constructor and operator=. + CrashGenerationServer(const CrashGenerationServer&); + CrashGenerationServer& operator=(const CrashGenerationServer&); +}; + +} // namespace google_breakpad + +#endif // GOOGLE_BREAKPAD_CLIENT_MAC_CRASH_GENERATION_CRASH_GENERATION_SERVER_H_ diff --git a/3rdParty/Breakpad/src/client/mac/handler/breakpad_nlist_64.cc b/3rdParty/Breakpad/src/client/mac/handler/breakpad_nlist_64.cc new file mode 100644 index 0000000..b50aa03 --- /dev/null +++ b/3rdParty/Breakpad/src/client/mac/handler/breakpad_nlist_64.cc @@ -0,0 +1,413 @@ +/* + * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. + * + * @APPLE_LICENSE_HEADER_START@ + * + * This file contains Original Code and/or Modifications of Original Code + * as defined in and that are subject to the Apple Public Source License + * Version 2.0 (the 'License'). You may not use this file except in + * compliance with the License. Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this + * file. + * + * The Original Code and all software distributed under the License are + * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, + * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. + * Please see the License for the specific language governing rights and + * limitations under the License. + * + * @APPLE_LICENSE_HEADER_END@ + */ +/* + * Copyright (c) 1989, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + + +/* + * This file was copied from libc/gen/nlist.c from Darwin's source code + * The version of nlist used as a base is from 10.5.2, libc-498 + * http://www.opensource.apple.com/darwinsource/10.5.2/Libc-498/gen/nlist.c + * + * The full tarball is at: + * http://www.opensource.apple.com/darwinsource/tarballs/apsl/Libc-498.tar.gz + * + * I've modified it to be compatible with 64-bit images. +*/ + +#include "breakpad_nlist_64.h" + +#include <CoreFoundation/CoreFoundation.h> +#include <fcntl.h> +#include <mach-o/nlist.h> +#include <mach-o/loader.h> +#include <mach-o/fat.h> +#include <mach/mach.h> +#include <stdio.h> +#include <stdlib.h> +#include <sys/types.h> +#include <sys/uio.h> +#include <TargetConditionals.h> +#include <unistd.h> + +/* Stuff lifted from <a.out.h> and <sys/exec.h> since they are gone */ +/* + * Header prepended to each a.out file. + */ +struct exec { + unsigned short a_machtype; /* machine type */ + unsigned short a_magic; /* magic number */ + unsigned long a_text; /* size of text segment */ + unsigned long a_data; /* size of initialized data */ + unsigned long a_bss; /* size of uninitialized data */ + unsigned long a_syms; /* size of symbol table */ + unsigned long a_entry; /* entry point */ + unsigned long a_trsize; /* size of text relocation */ + unsigned long a_drsize; /* size of data relocation */ +}; + +#define OMAGIC 0407 /* old impure format */ +#define NMAGIC 0410 /* read-only text */ +#define ZMAGIC 0413 /* demand load format */ + +#define N_BADMAG(x) \ + (((x).a_magic)!=OMAGIC && ((x).a_magic)!=NMAGIC && ((x).a_magic)!=ZMAGIC) +#define N_TXTOFF(x) \ + ((x).a_magic==ZMAGIC ? 0 : sizeof (struct exec)) +#define N_SYMOFF(x) \ + (N_TXTOFF(x) + (x).a_text+(x).a_data + (x).a_trsize+(x).a_drsize) + +// Traits structs for specializing function templates to handle +// 32-bit/64-bit Mach-O files. +template<typename T> +struct MachBits {}; + +typedef struct nlist nlist32; +typedef struct nlist_64 nlist64; + +template<> +struct MachBits<nlist32> { + typedef mach_header mach_header_type; + typedef uint32_t word_type; + static const uint32_t magic = MH_MAGIC; +}; + +template<> +struct MachBits<nlist64> { + typedef mach_header_64 mach_header_type; + typedef uint64_t word_type; + static const uint32_t magic = MH_MAGIC_64; +}; + +template<typename nlist_type> +int +__breakpad_fdnlist(int fd, nlist_type *list, const char **symbolNames, + cpu_type_t cpu_type); + +/* + * nlist - retreive attributes from name list (string table version) + */ + +template <typename nlist_type> +int breakpad_nlist_common(const char *name, + nlist_type *list, + const char **symbolNames, + cpu_type_t cpu_type) { + int fd = open(name, O_RDONLY, 0); + if (fd < 0) + return -1; + int n = __breakpad_fdnlist(fd, list, symbolNames, cpu_type); + close(fd); + return n; +} + +int breakpad_nlist(const char *name, + struct nlist *list, + const char **symbolNames, + cpu_type_t cpu_type) { + return breakpad_nlist_common(name, list, symbolNames, cpu_type); +} + +int breakpad_nlist(const char *name, + struct nlist_64 *list, + const char **symbolNames, + cpu_type_t cpu_type) { + return breakpad_nlist_common(name, list, symbolNames, cpu_type); +} + +/* Note: __fdnlist() is called from kvm_nlist in libkvm's kvm.c */ + +template<typename nlist_type> +int __breakpad_fdnlist(int fd, nlist_type *list, const char **symbolNames, + cpu_type_t cpu_type) { + typedef typename MachBits<nlist_type>::mach_header_type mach_header_type; + typedef typename MachBits<nlist_type>::word_type word_type; + + const uint32_t magic = MachBits<nlist_type>::magic; + + int maxlen = 500; + int nreq = 0; + for (nlist_type* q = list; + symbolNames[q-list] && symbolNames[q-list][0]; + q++, nreq++) { + + q->n_type = 0; + q->n_value = 0; + q->n_desc = 0; + q->n_sect = 0; + q->n_un.n_strx = 0; + } + + struct exec buf; + if (read(fd, (char *)&buf, sizeof(buf)) != sizeof(buf) || + (N_BADMAG(buf) && *((uint32_t *)&buf) != magic && + CFSwapInt32BigToHost(*((uint32_t *)&buf)) != FAT_MAGIC && + /* The following is the big-endian ppc64 check */ + (*((uint32_t*)&buf)) != FAT_MAGIC)) { + return -1; + } + + /* Deal with fat file if necessary */ + unsigned arch_offset = 0; + if (CFSwapInt32BigToHost(*((uint32_t *)&buf)) == FAT_MAGIC || + /* The following is the big-endian ppc64 check */ + *((unsigned int *)&buf) == FAT_MAGIC) { + /* Get host info */ + host_t host = mach_host_self(); + unsigned i = HOST_BASIC_INFO_COUNT; + struct host_basic_info hbi; + kern_return_t kr; + if ((kr = host_info(host, HOST_BASIC_INFO, + (host_info_t)(&hbi), &i)) != KERN_SUCCESS) { + return -1; + } + mach_port_deallocate(mach_task_self(), host); + + /* Read in the fat header */ + struct fat_header fh; + if (lseek(fd, 0, SEEK_SET) == -1) { + return -1; + } + if (read(fd, (char *)&fh, sizeof(fh)) != sizeof(fh)) { + return -1; + } + + /* Convert fat_narchs to host byte order */ + fh.nfat_arch = CFSwapInt32BigToHost(fh.nfat_arch); + + /* Read in the fat archs */ + struct fat_arch *fat_archs = + (struct fat_arch *)malloc(fh.nfat_arch * sizeof(struct fat_arch)); + if (fat_archs == NULL) { + return -1; + } + if (read(fd, (char *)fat_archs, + sizeof(struct fat_arch) * fh.nfat_arch) != + (ssize_t)(sizeof(struct fat_arch) * fh.nfat_arch)) { + free(fat_archs); + return -1; + } + + /* + * Convert archs to host byte ordering (a constraint of + * cpusubtype_getbestarch() + */ + for (unsigned i = 0; i < fh.nfat_arch; i++) { + fat_archs[i].cputype = + CFSwapInt32BigToHost(fat_archs[i].cputype); + fat_archs[i].cpusubtype = + CFSwapInt32BigToHost(fat_archs[i].cpusubtype); + fat_archs[i].offset = + CFSwapInt32BigToHost(fat_archs[i].offset); + fat_archs[i].size = + CFSwapInt32BigToHost(fat_archs[i].size); + fat_archs[i].align = + CFSwapInt32BigToHost(fat_archs[i].align); + } + + struct fat_arch *fap = NULL; + for (unsigned i = 0; i < fh.nfat_arch; i++) { + if (fat_archs[i].cputype == cpu_type) { + fap = &fat_archs[i]; + break; + } + } + + if (!fap) { + free(fat_archs); + return -1; + } + arch_offset = fap->offset; + free(fat_archs); + + /* Read in the beginning of the architecture-specific file */ + if (lseek(fd, arch_offset, SEEK_SET) == -1) { + return -1; + } + if (read(fd, (char *)&buf, sizeof(buf)) != sizeof(buf)) { + return -1; + } + } + + off_t sa; /* symbol address */ + off_t ss; /* start of strings */ + register register_t n; + if (*((unsigned int *)&buf) == magic) { + if (lseek(fd, arch_offset, SEEK_SET) == -1) { + return -1; + } + mach_header_type mh; + if (read(fd, (char *)&mh, sizeof(mh)) != sizeof(mh)) { + return -1; + } + + struct load_command *load_commands = + (struct load_command *)malloc(mh.sizeofcmds); + if (load_commands == NULL) { + return -1; + } + if (read(fd, (char *)load_commands, mh.sizeofcmds) != + (ssize_t)mh.sizeofcmds) { + free(load_commands); + return -1; + } + struct symtab_command *stp = NULL; + struct load_command *lcp = load_commands; + // iterate through all load commands, looking for + // LC_SYMTAB load command + for (uint32_t i = 0; i < mh.ncmds; i++) { + if (lcp->cmdsize % sizeof(word_type) != 0 || + lcp->cmdsize <= 0 || + (char *)lcp + lcp->cmdsize > + (char *)load_commands + mh.sizeofcmds) { + free(load_commands); + return -1; + } + if (lcp->cmd == LC_SYMTAB) { + if (lcp->cmdsize != + sizeof(struct symtab_command)) { + free(load_commands); + return -1; + } + stp = (struct symtab_command *)lcp; + break; + } + lcp = (struct load_command *) + ((char *)lcp + lcp->cmdsize); + } + if (stp == NULL) { + free(load_commands); + return -1; + } + // sa points to the beginning of the symbol table + sa = stp->symoff + arch_offset; + // ss points to the beginning of the string table + ss = stp->stroff + arch_offset; + // n is the number of bytes in the symbol table + // each symbol table entry is an nlist structure + n = stp->nsyms * sizeof(nlist_type); + free(load_commands); + } else { + sa = N_SYMOFF(buf) + arch_offset; + ss = sa + buf.a_syms + arch_offset; + n = buf.a_syms; + } + + if (lseek(fd, sa, SEEK_SET) == -1) { + return -1; + } + + // the algorithm here is to read the nlist entries in m-sized + // chunks into q. q is then iterated over. for each entry in q, + // use the string table index(q->n_un.n_strx) to read the symbol + // name, then scan the nlist entries passed in by the user(via p), + // and look for a match + while (n) { + nlist_type space[BUFSIZ/sizeof (nlist_type)]; + register register_t m = sizeof (space); + + if (n < m) + m = n; + if (read(fd, (char *)space, m) != m) + break; + n -= m; + long savpos = lseek(fd, 0, SEEK_CUR); + if (savpos == -1) { + return -1; + } + for (nlist_type* q = space; (m -= sizeof(nlist_type)) >= 0; q++) { + char nambuf[BUFSIZ]; + + if (q->n_un.n_strx == 0 || q->n_type & N_STAB) + continue; + + // seek to the location in the binary where the symbol + // name is stored & read it into memory + if (lseek(fd, ss+q->n_un.n_strx, SEEK_SET) == -1) { + return -1; + } + if (read(fd, nambuf, maxlen+1) == -1) { + return -1; + } + const char *s2 = nambuf; + for (nlist_type *p = list; + symbolNames[p-list] && symbolNames[p-list][0]; + p++) { + // get the symbol name the user has passed in that + // corresponds to the nlist entry that we're looking at + const char *s1 = symbolNames[p - list]; + while (*s1) { + if (*s1++ != *s2++) + goto cont; + } + if (*s2) + goto cont; + + p->n_value = q->n_value; + p->n_type = q->n_type; + p->n_desc = q->n_desc; + p->n_sect = q->n_sect; + p->n_un.n_strx = q->n_un.n_strx; + if (--nreq == 0) + return nreq; + + break; + cont: ; + } + } + if (lseek(fd, savpos, SEEK_SET) == -1) { + return -1; + } + } + return nreq; +} diff --git a/3rdParty/Breakpad/src/client/mac/handler/breakpad_nlist_64.h b/3rdParty/Breakpad/src/client/mac/handler/breakpad_nlist_64.h new file mode 100644 index 0000000..1d2c639 --- /dev/null +++ b/3rdParty/Breakpad/src/client/mac/handler/breakpad_nlist_64.h @@ -0,0 +1,47 @@ +// Copyright (c) 2008, Google Inc. +// All rights reserved +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// breakpad_nlist.h +// +// This file is meant to provide a header for clients of the modified +// nlist function implemented to work on 64-bit. + +#ifndef CLIENT_MAC_HANDLER_BREAKPAD_NLIST_H__ + +#include <mach/machine.h> + +int breakpad_nlist(const char *name, + struct nlist *list, + const char **symbolNames, + cpu_type_t cpu_type); +int breakpad_nlist(const char *name, + struct nlist_64 *list, + const char **symbolNames, + cpu_type_t cpu_type); + +#endif /* CLIENT_MAC_HANDLER_BREAKPAD_NLIST_H__ */ diff --git a/3rdParty/Breakpad/src/client/mac/handler/dynamic_images.cc b/3rdParty/Breakpad/src/client/mac/handler/dynamic_images.cc new file mode 100644 index 0000000..ef5743c --- /dev/null +++ b/3rdParty/Breakpad/src/client/mac/handler/dynamic_images.cc @@ -0,0 +1,578 @@ +// Copyright (c) 2007, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include "client/mac/handler/dynamic_images.h" + +extern "C" { // needed to compile on Leopard + #include <mach-o/nlist.h> + #include <stdlib.h> + #include <stdio.h> +} + +#include <assert.h> +#include <AvailabilityMacros.h> +#include <dlfcn.h> +#include <mach/task_info.h> +#include <sys/sysctl.h> +#include <TargetConditionals.h> + +#include <algorithm> +#include <string> +#include <vector> + +#include "breakpad_nlist_64.h" + +#if !TARGET_OS_IPHONE +#include <CoreServices/CoreServices.h> + +#ifndef MAC_OS_X_VERSION_10_6 +#define MAC_OS_X_VERSION_10_6 1060 +#endif + +#if MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_6 + +// Fallback declarations for TASK_DYLD_INFO and friends, introduced in +// <mach/task_info.h> in the Mac OS X 10.6 SDK. +#define TASK_DYLD_INFO 17 +struct task_dyld_info { + mach_vm_address_t all_image_info_addr; + mach_vm_size_t all_image_info_size; +}; +typedef struct task_dyld_info task_dyld_info_data_t; +typedef struct task_dyld_info *task_dyld_info_t; +#define TASK_DYLD_INFO_COUNT (sizeof(task_dyld_info_data_t) / sizeof(natural_t)) + +#endif + +#endif // !TARGET_OS_IPHONE + +namespace google_breakpad { + +using std::string; +using std::vector; + +//============================================================================== +// Returns the size of the memory region containing |address| and the +// number of bytes from |address| to the end of the region. +// We potentially, will extend the size of the original +// region by the size of the following region if it's contiguous with the +// first in order to handle cases when we're reading strings and they +// straddle two vm regions. +// +static mach_vm_size_t GetMemoryRegionSize(task_port_t target_task, + const uint64_t address, + mach_vm_size_t *size_to_end) { + mach_vm_address_t region_base = (mach_vm_address_t)address; + mach_vm_size_t region_size; + natural_t nesting_level = 0; + vm_region_submap_info_64 submap_info; + mach_msg_type_number_t info_count = VM_REGION_SUBMAP_INFO_COUNT_64; + + // Get information about the vm region containing |address| + vm_region_recurse_info_t region_info; + region_info = reinterpret_cast<vm_region_recurse_info_t>(&submap_info); + + kern_return_t result = + mach_vm_region_recurse(target_task, + ®ion_base, + ®ion_size, + &nesting_level, + region_info, + &info_count); + + if (result == KERN_SUCCESS) { + // Get distance from |address| to the end of this region + *size_to_end = region_base + region_size -(mach_vm_address_t)address; + + // If we want to handle strings as long as 4096 characters we may need + // to check if there's a vm region immediately following the first one. + // If so, we need to extend |*size_to_end| to go all the way to the end + // of the second region. + if (*size_to_end < 4096) { + // Second region starts where the first one ends + mach_vm_address_t region_base2 = + (mach_vm_address_t)(region_base + region_size); + mach_vm_size_t region_size2; + + // Get information about the following vm region + result = + mach_vm_region_recurse(target_task, + ®ion_base2, + ®ion_size2, + &nesting_level, + region_info, + &info_count); + + // Extend region_size to go all the way to the end of the 2nd region + if (result == KERN_SUCCESS + && region_base2 == region_base + region_size) { + region_size += region_size2; + } + } + + *size_to_end = region_base + region_size -(mach_vm_address_t)address; + } else { + region_size = 0; + *size_to_end = 0; + } + + return region_size; +} + +#define kMaxStringLength 8192 +//============================================================================== +// Reads a NULL-terminated string from another task. +// +// Warning! This will not read any strings longer than kMaxStringLength-1 +// +static string ReadTaskString(task_port_t target_task, + const uint64_t address) { + // The problem is we don't know how much to read until we know how long + // the string is. And we don't know how long the string is, until we've read + // the memory! So, we'll try to read kMaxStringLength bytes + // (or as many bytes as we can until we reach the end of the vm region). + mach_vm_size_t size_to_end; + GetMemoryRegionSize(target_task, address, &size_to_end); + + if (size_to_end > 0) { + mach_vm_size_t size_to_read = + size_to_end > kMaxStringLength ? kMaxStringLength : size_to_end; + + vector<uint8_t> bytes; + if (ReadTaskMemory(target_task, address, (size_t)size_to_read, bytes) != + KERN_SUCCESS) + return string(); + + return string(reinterpret_cast<const char*>(&bytes[0])); + } + + return string(); +} + +//============================================================================== +// Reads an address range from another task. The bytes read will be returned +// in bytes, which will be resized as necessary. +kern_return_t ReadTaskMemory(task_port_t target_task, + const uint64_t address, + size_t length, + vector<uint8_t> &bytes) { + int systemPageSize = getpagesize(); + + // use the negative of the page size for the mask to find the page address + mach_vm_address_t page_address = address & (-systemPageSize); + + mach_vm_address_t last_page_address = + (address + length + (systemPageSize - 1)) & (-systemPageSize); + + mach_vm_size_t page_size = last_page_address - page_address; + uint8_t* local_start; + uint32_t local_length; + + kern_return_t r = mach_vm_read(target_task, + page_address, + page_size, + reinterpret_cast<vm_offset_t*>(&local_start), + &local_length); + + if (r != KERN_SUCCESS) + return r; + + bytes.resize(length); + memcpy(&bytes[0], + &local_start[(mach_vm_address_t)address - page_address], + length); + mach_vm_deallocate(mach_task_self(), (uintptr_t)local_start, local_length); + return KERN_SUCCESS; +} + +#pragma mark - + +//============================================================================== +// Traits structs for specializing function templates to handle +// 32-bit/64-bit Mach-O files. +struct MachO32 { + typedef mach_header mach_header_type; + typedef segment_command mach_segment_command_type; + typedef dyld_image_info32 dyld_image_info; + typedef dyld_all_image_infos32 dyld_all_image_infos; + typedef struct nlist nlist_type; + static const uint32_t magic = MH_MAGIC; + static const uint32_t segment_load_command = LC_SEGMENT; +}; + +struct MachO64 { + typedef mach_header_64 mach_header_type; + typedef segment_command_64 mach_segment_command_type; + typedef dyld_image_info64 dyld_image_info; + typedef dyld_all_image_infos64 dyld_all_image_infos; + typedef struct nlist_64 nlist_type; + static const uint32_t magic = MH_MAGIC_64; + static const uint32_t segment_load_command = LC_SEGMENT_64; +}; + +template<typename MachBits> +bool FindTextSection(DynamicImage& image) { + typedef typename MachBits::mach_header_type mach_header_type; + typedef typename MachBits::mach_segment_command_type + mach_segment_command_type; + + const mach_header_type* header = + reinterpret_cast<const mach_header_type*>(&image.header_[0]); + + if(header->magic != MachBits::magic) { + return false; + } + + const struct load_command *cmd = + reinterpret_cast<const struct load_command *>(header + 1); + + bool found_text_section = false; + bool found_dylib_id_command = false; + for (unsigned int i = 0; cmd && (i < header->ncmds); ++i) { + if (!found_text_section) { + if (cmd->cmd == MachBits::segment_load_command) { + const mach_segment_command_type *seg = + reinterpret_cast<const mach_segment_command_type *>(cmd); + + if (!strcmp(seg->segname, "__TEXT")) { + image.vmaddr_ = seg->vmaddr; + image.vmsize_ = seg->vmsize; + image.slide_ = 0; + + if (seg->fileoff == 0 && seg->filesize != 0) { + image.slide_ = + (uintptr_t)image.GetLoadAddress() - (uintptr_t)seg->vmaddr; + } + found_text_section = true; + } + } + } + + if (!found_dylib_id_command) { + if (cmd->cmd == LC_ID_DYLIB) { + const struct dylib_command *dc = + reinterpret_cast<const struct dylib_command *>(cmd); + + image.version_ = dc->dylib.current_version; + found_dylib_id_command = true; + } + } + + if (found_dylib_id_command && found_text_section) { + return true; + } + + cmd = reinterpret_cast<const struct load_command *> + (reinterpret_cast<const char *>(cmd) + cmd->cmdsize); + } + + return false; +} + +//============================================================================== +// Initializes vmaddr_, vmsize_, and slide_ +void DynamicImage::CalculateMemoryAndVersionInfo() { + // unless we can process the header, ensure that calls to + // IsValid() will return false + vmaddr_ = 0; + vmsize_ = 0; + slide_ = 0; + version_ = 0; + + // The function template above does all the real work. + if (Is64Bit()) + FindTextSection<MachO64>(*this); + else + FindTextSection<MachO32>(*this); +} + +//============================================================================== +// The helper function template abstracts the 32/64-bit differences. +template<typename MachBits> +uint32_t GetFileTypeFromHeader(DynamicImage& image) { + typedef typename MachBits::mach_header_type mach_header_type; + + const mach_header_type* header = + reinterpret_cast<const mach_header_type*>(&image.header_[0]); + return header->filetype; +} + +uint32_t DynamicImage::GetFileType() { + if (Is64Bit()) + return GetFileTypeFromHeader<MachO64>(*this); + + return GetFileTypeFromHeader<MachO32>(*this); +} + +#pragma mark - + +//============================================================================== +// Loads information about dynamically loaded code in the given task. +DynamicImages::DynamicImages(mach_port_t task) + : task_(task), + cpu_type_(DetermineTaskCPUType(task)), + image_list_() { + ReadImageInfoForTask(); +} + +template<typename MachBits> +static uint64_t LookupSymbol(const char* symbol_name, + const char* filename, + cpu_type_t cpu_type) { + typedef typename MachBits::nlist_type nlist_type; + + nlist_type symbol_info[8] = {}; + const char *symbolNames[2] = { symbol_name, "\0" }; + nlist_type &list = symbol_info[0]; + int invalidEntriesCount = breakpad_nlist(filename, + &list, + symbolNames, + cpu_type); + + if(invalidEntriesCount != 0) { + return 0; + } + + assert(list.n_value); + return list.n_value; +} + +#if TARGET_OS_IPHONE +static bool HasTaskDyldInfo() { + return true; +} +#else +static SInt32 GetOSVersionInternal() { + SInt32 os_version = 0; + Gestalt(gestaltSystemVersion, &os_version); + return os_version; +} + +static SInt32 GetOSVersion() { + static SInt32 os_version = GetOSVersionInternal(); + return os_version; +} + +static bool HasTaskDyldInfo() { +#if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_6 + return true; +#else + return GetOSVersion() >= 0x1060; +#endif +} +#endif // TARGET_OS_IPHONE + +uint64_t DynamicImages::GetDyldAllImageInfosPointer() { + if (HasTaskDyldInfo()) { + task_dyld_info_data_t task_dyld_info; + mach_msg_type_number_t count = TASK_DYLD_INFO_COUNT; + if (task_info(task_, TASK_DYLD_INFO, (task_info_t)&task_dyld_info, + &count) != KERN_SUCCESS) { + return 0; + } + + return (uint64_t)task_dyld_info.all_image_info_addr; + } else { + const char *imageSymbolName = "_dyld_all_image_infos"; + const char *dyldPath = "/usr/lib/dyld"; + + if (Is64Bit()) + return LookupSymbol<MachO64>(imageSymbolName, dyldPath, cpu_type_); + return LookupSymbol<MachO32>(imageSymbolName, dyldPath, cpu_type_); + } +} + +//============================================================================== +// This code was written using dyld_debug.c (from Darwin) as a guide. + +template<typename MachBits> +void ReadImageInfo(DynamicImages& images, + uint64_t image_list_address) { + typedef typename MachBits::dyld_image_info dyld_image_info; + typedef typename MachBits::dyld_all_image_infos dyld_all_image_infos; + typedef typename MachBits::mach_header_type mach_header_type; + + // Read the structure inside of dyld that contains information about + // loaded images. We're reading from the desired task's address space. + + // Here we make the assumption that dyld loaded at the same address in + // the crashed process vs. this one. This is an assumption made in + // "dyld_debug.c" and is said to be nearly always valid. + vector<uint8_t> dyld_all_info_bytes; + if (ReadTaskMemory(images.task_, + image_list_address, + sizeof(dyld_all_image_infos), + dyld_all_info_bytes) != KERN_SUCCESS) + return; + + dyld_all_image_infos *dyldInfo = + reinterpret_cast<dyld_all_image_infos*>(&dyld_all_info_bytes[0]); + + // number of loaded images + int count = dyldInfo->infoArrayCount; + + // Read an array of dyld_image_info structures each containing + // information about a loaded image. + vector<uint8_t> dyld_info_array_bytes; + if (ReadTaskMemory(images.task_, + dyldInfo->infoArray, + count * sizeof(dyld_image_info), + dyld_info_array_bytes) != KERN_SUCCESS) + return; + + dyld_image_info *infoArray = + reinterpret_cast<dyld_image_info*>(&dyld_info_array_bytes[0]); + images.image_list_.reserve(count); + + for (int i = 0; i < count; ++i) { + dyld_image_info &info = infoArray[i]; + + // First read just the mach_header from the image in the task. + vector<uint8_t> mach_header_bytes; + if (ReadTaskMemory(images.task_, + info.load_address_, + sizeof(mach_header_type), + mach_header_bytes) != KERN_SUCCESS) + continue; // bail on this dynamic image + + mach_header_type *header = + reinterpret_cast<mach_header_type*>(&mach_header_bytes[0]); + + // Now determine the total amount necessary to read the header + // plus all of the load commands. + size_t header_size = + sizeof(mach_header_type) + header->sizeofcmds; + + if (ReadTaskMemory(images.task_, + info.load_address_, + header_size, + mach_header_bytes) != KERN_SUCCESS) + continue; + + header = reinterpret_cast<mach_header_type*>(&mach_header_bytes[0]); + + // Read the file name from the task's memory space. + string file_path; + if (info.file_path_) { + // Although we're reading kMaxStringLength bytes, it's copied in the + // the DynamicImage constructor below with the correct string length, + // so it's not really wasting memory. + file_path = ReadTaskString(images.task_, info.file_path_); + } + + // Create an object representing this image and add it to our list. + DynamicImage *new_image; + new_image = new DynamicImage(&mach_header_bytes[0], + header_size, + info.load_address_, + file_path, + info.file_mod_date_, + images.task_, + images.cpu_type_); + + if (new_image->IsValid()) { + images.image_list_.push_back(DynamicImageRef(new_image)); + } else { + delete new_image; + } + } + + // sorts based on loading address + sort(images.image_list_.begin(), images.image_list_.end()); + // remove duplicates - this happens in certain strange cases + // You can see it in DashboardClient when Google Gadgets plugin + // is installed. Apple's crash reporter log and gdb "info shared" + // both show the same library multiple times at the same address + + vector<DynamicImageRef>::iterator it = unique(images.image_list_.begin(), + images.image_list_.end()); + images.image_list_.erase(it, images.image_list_.end()); +} + +void DynamicImages::ReadImageInfoForTask() { + uint64_t imageList = GetDyldAllImageInfosPointer(); + + if (imageList) { + if (Is64Bit()) + ReadImageInfo<MachO64>(*this, imageList); + else + ReadImageInfo<MachO32>(*this, imageList); + } +} + +//============================================================================== +DynamicImage *DynamicImages::GetExecutableImage() { + int executable_index = GetExecutableImageIndex(); + + if (executable_index >= 0) { + return GetImage(executable_index); + } + + return NULL; +} + +//============================================================================== +// returns -1 if failure to find executable +int DynamicImages::GetExecutableImageIndex() { + int image_count = GetImageCount(); + + for (int i = 0; i < image_count; ++i) { + DynamicImage *image = GetImage(i); + if (image->GetFileType() == MH_EXECUTE) { + return i; + } + } + + return -1; +} + +//============================================================================== +// static +cpu_type_t DynamicImages::DetermineTaskCPUType(task_t task) { + if (task == mach_task_self()) + return GetNativeCPUType(); + + int mib[CTL_MAXNAME]; + size_t mibLen = CTL_MAXNAME; + int err = sysctlnametomib("sysctl.proc_cputype", mib, &mibLen); + if (err == 0) { + assert(mibLen < CTL_MAXNAME); + pid_for_task(task, &mib[mibLen]); + mibLen += 1; + + cpu_type_t cpu_type; + size_t cpuTypeSize = sizeof(cpu_type); + sysctl(mib, mibLen, &cpu_type, &cpuTypeSize, 0, 0); + return cpu_type; + } + + return GetNativeCPUType(); +} + +} // namespace google_breakpad diff --git a/3rdParty/Breakpad/src/client/mac/handler/dynamic_images.h b/3rdParty/Breakpad/src/client/mac/handler/dynamic_images.h new file mode 100644 index 0000000..d039eda --- /dev/null +++ b/3rdParty/Breakpad/src/client/mac/handler/dynamic_images.h @@ -0,0 +1,317 @@ +// Copyright (c) 2007, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// dynamic_images.h +// +// Implements most of the function of the dyld API, but allowing an +// arbitrary task to be introspected, unlike the dyld API which +// only allows operation on the current task. The current implementation +// is limited to use by 32-bit tasks. + +#ifndef CLIENT_MAC_HANDLER_DYNAMIC_IMAGES_H__ +#define CLIENT_MAC_HANDLER_DYNAMIC_IMAGES_H__ + +#include <mach/mach.h> +#include <mach-o/dyld.h> +#include <mach-o/loader.h> +#include <sys/types.h> + +#include <string> +#include <vector> + +#include "mach_vm_compat.h" + +namespace google_breakpad { + +using std::string; +using std::vector; + +//============================================================================== +// The memory layout of this struct matches the dyld_image_info struct +// defined in "dyld_gdb.h" in the darwin source. +typedef struct dyld_image_info32 { + uint32_t load_address_; // struct mach_header* + uint32_t file_path_; // char* + uint32_t file_mod_date_; +} dyld_image_info32; + +typedef struct dyld_image_info64 { + uint64_t load_address_; // struct mach_header* + uint64_t file_path_; // char* + uint64_t file_mod_date_; +} dyld_image_info64; + +//============================================================================== +// This is as defined in "dyld_gdb.h" in the darwin source. +// _dyld_all_image_infos (in dyld) is a structure of this type +// which will be used to determine which dynamic code has been loaded. +typedef struct dyld_all_image_infos32 { + uint32_t version; // == 1 in Mac OS X 10.4 + uint32_t infoArrayCount; + uint32_t infoArray; // const struct dyld_image_info* + uint32_t notification; + bool processDetachedFromSharedRegion; +} dyld_all_image_infos32; + +typedef struct dyld_all_image_infos64 { + uint32_t version; // == 1 in Mac OS X 10.4 + uint32_t infoArrayCount; + uint64_t infoArray; // const struct dyld_image_info* + uint64_t notification; + bool processDetachedFromSharedRegion; +} dyld_all_image_infos64; + +// some typedefs to isolate 64/32 bit differences +#ifdef __LP64__ +typedef mach_header_64 breakpad_mach_header; +typedef segment_command_64 breakpad_mach_segment_command; +#else +typedef mach_header breakpad_mach_header; +typedef segment_command breakpad_mach_segment_command; +#endif + +// Helper functions to deal with 32-bit/64-bit Mach-O differences. +class DynamicImage; +template<typename MachBits> +bool FindTextSection(DynamicImage& image); + +template<typename MachBits> +uint32_t GetFileTypeFromHeader(DynamicImage& image); + +//============================================================================== +// Represents a single dynamically loaded mach-o image +class DynamicImage { + public: + DynamicImage(uint8_t *header, // data is copied + size_t header_size, // includes load commands + uint64_t load_address, + string file_path, + uintptr_t image_mod_date, + mach_port_t task, + cpu_type_t cpu_type) + : header_(header, header + header_size), + header_size_(header_size), + load_address_(load_address), + vmaddr_(0), + vmsize_(0), + slide_(0), + version_(0), + file_path_(file_path), + file_mod_date_(image_mod_date), + task_(task), + cpu_type_(cpu_type) { + CalculateMemoryAndVersionInfo(); + } + + // Size of mach_header plus load commands + size_t GetHeaderSize() const {return header_.size();} + + // Full path to mach-o binary + string GetFilePath() {return file_path_;} + + uint64_t GetModDate() const {return file_mod_date_;} + + // Actual address where the image was loaded + uint64_t GetLoadAddress() const {return load_address_;} + + // Address where the image should be loaded + mach_vm_address_t GetVMAddr() const {return vmaddr_;} + + // Difference between GetLoadAddress() and GetVMAddr() + ptrdiff_t GetVMAddrSlide() const {return slide_;} + + // Size of the image + mach_vm_size_t GetVMSize() const {return vmsize_;} + + // Task owning this loaded image + mach_port_t GetTask() {return task_;} + + // CPU type of the task + cpu_type_t GetCPUType() {return cpu_type_;} + + // filetype from the Mach-O header. + uint32_t GetFileType(); + + // Return true if the task is a 64-bit architecture. + bool Is64Bit() { return (GetCPUType() & CPU_ARCH_ABI64) == CPU_ARCH_ABI64; } + + uint32_t GetVersion() {return version_;} + // For sorting + bool operator<(const DynamicImage &inInfo) { + return GetLoadAddress() < inInfo.GetLoadAddress(); + } + + // Sanity checking + bool IsValid() {return GetVMSize() != 0;} + + private: + DynamicImage(const DynamicImage &); + DynamicImage &operator=(const DynamicImage &); + + friend class DynamicImages; + template<typename MachBits> + friend bool FindTextSection(DynamicImage& image); + template<typename MachBits> + friend uint32_t GetFileTypeFromHeader(DynamicImage& image); + + // Initializes vmaddr_, vmsize_, and slide_ + void CalculateMemoryAndVersionInfo(); + + const vector<uint8_t> header_; // our local copy of the header + size_t header_size_; // mach_header plus load commands + uint64_t load_address_; // base address image is mapped into + mach_vm_address_t vmaddr_; + mach_vm_size_t vmsize_; + ptrdiff_t slide_; + uint32_t version_; // Dylib version + string file_path_; // path dyld used to load the image + uintptr_t file_mod_date_; // time_t of image file + + mach_port_t task_; + cpu_type_t cpu_type_; // CPU type of task_ +}; + +//============================================================================== +// DynamicImageRef is just a simple wrapper for a pointer to +// DynamicImage. The reason we use it instead of a simple typedef is so +// that we can use stl::sort() on a vector of DynamicImageRefs +// and simple class pointers can't implement operator<(). +// +class DynamicImageRef { + public: + explicit DynamicImageRef(DynamicImage *inP) : p(inP) {} + // The copy constructor is required by STL + DynamicImageRef(const DynamicImageRef &inRef) : p(inRef.p) {} + + bool operator<(const DynamicImageRef &inRef) const { + return (*const_cast<DynamicImageRef*>(this)->p) + < (*const_cast<DynamicImageRef&>(inRef).p); + } + + bool operator==(const DynamicImageRef &inInfo) const { + return (*const_cast<DynamicImageRef*>(this)->p).GetLoadAddress() == + (*const_cast<DynamicImageRef&>(inInfo)).GetLoadAddress(); + } + + // Be just like DynamicImage* + DynamicImage *operator->() {return p;} + operator DynamicImage*() {return p;} + + private: + DynamicImage *p; +}; + +// Helper function to deal with 32-bit/64-bit Mach-O differences. +class DynamicImages; +template<typename MachBits> +void ReadImageInfo(DynamicImages& images, uint64_t image_list_address); + +//============================================================================== +// An object of type DynamicImages may be created to allow introspection of +// an arbitrary task's dynamically loaded mach-o binaries. This makes the +// assumption that the current task has send rights to the target task. +class DynamicImages { + public: + explicit DynamicImages(mach_port_t task); + + ~DynamicImages() { + for (int i = 0; i < GetImageCount(); ++i) { + delete image_list_[i]; + } + } + + // Returns the number of dynamically loaded mach-o images. + int GetImageCount() const {return static_cast<int>(image_list_.size());} + + // Returns an individual image. + DynamicImage *GetImage(int i) { + if (i < (int)image_list_.size()) { + return image_list_[i]; + } + return NULL; + } + + // Returns the image corresponding to the main executable. + DynamicImage *GetExecutableImage(); + int GetExecutableImageIndex(); + + // Returns the task which we're looking at. + mach_port_t GetTask() const {return task_;} + + // CPU type of the task + cpu_type_t GetCPUType() {return cpu_type_;} + + // Return true if the task is a 64-bit architecture. + bool Is64Bit() { return (GetCPUType() & CPU_ARCH_ABI64) == CPU_ARCH_ABI64; } + + // Determine the CPU type of the task being dumped. + static cpu_type_t DetermineTaskCPUType(task_t task); + + // Get the native CPU type of this task. + static cpu_type_t GetNativeCPUType() { +#if defined(__i386__) + return CPU_TYPE_I386; +#elif defined(__x86_64__) + return CPU_TYPE_X86_64; +#elif defined(__ppc__) + return CPU_TYPE_POWERPC; +#elif defined(__ppc64__) + return CPU_TYPE_POWERPC64; +#elif defined(__arm__) + return CPU_TYPE_ARM; +#else +#error "GetNativeCPUType not implemented for this architecture" +#endif + } + + private: + template<typename MachBits> + friend void ReadImageInfo(DynamicImages& images, uint64_t image_list_address); + + bool IsOurTask() {return task_ == mach_task_self();} + + // Initialization + void ReadImageInfoForTask(); + uint64_t GetDyldAllImageInfosPointer(); + + mach_port_t task_; + cpu_type_t cpu_type_; // CPU type of task_ + vector<DynamicImageRef> image_list_; +}; + +// Fill bytes with the contents of memory at a particular +// location in another task. +kern_return_t ReadTaskMemory(task_port_t target_task, + const uint64_t address, + size_t length, + vector<uint8_t> &bytes); + +} // namespace google_breakpad + +#endif // CLIENT_MAC_HANDLER_DYNAMIC_IMAGES_H__ diff --git a/3rdParty/Breakpad/src/client/mac/handler/exception_handler.cc b/3rdParty/Breakpad/src/client/mac/handler/exception_handler.cc new file mode 100644 index 0000000..4043019 --- /dev/null +++ b/3rdParty/Breakpad/src/client/mac/handler/exception_handler.cc @@ -0,0 +1,830 @@ +// Copyright (c) 2006, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include <map> +#include <mach/exc.h> +#include <mach/mig.h> +#include <pthread.h> +#include <signal.h> +#include <TargetConditionals.h> + +#include "client/mac/handler/exception_handler.h" +#include "client/mac/handler/minidump_generator.h" +#include "common/mac/macho_utilities.h" +#include "common/mac/scoped_task_suspend-inl.h" +#include "google_breakpad/common/minidump_exception_mac.h" + +#ifndef USE_PROTECTED_ALLOCATIONS +#if TARGET_OS_IPHONE +#define USE_PROTECTED_ALLOCATIONS 1 +#else +#define USE_PROTECTED_ALLOCATIONS 0 +#endif +#endif + +// If USE_PROTECTED_ALLOCATIONS is activated then the +// gBreakpadAllocator needs to be setup in other code +// ahead of time. Please see ProtectedMemoryAllocator.h +// for more details. +#if USE_PROTECTED_ALLOCATIONS + #include "protected_memory_allocator.h" + extern ProtectedMemoryAllocator *gBreakpadAllocator; +#endif + +namespace google_breakpad { + +static union { +#if USE_PROTECTED_ALLOCATIONS + char protected_buffer[PAGE_SIZE] __attribute__((aligned(PAGE_SIZE))); +#endif + google_breakpad::ExceptionHandler *handler; +} gProtectedData; + +using std::map; + +// These structures and techniques are illustrated in +// Mac OS X Internals, Amit Singh, ch 9.7 +struct ExceptionMessage { + mach_msg_header_t header; + mach_msg_body_t body; + mach_msg_port_descriptor_t thread; + mach_msg_port_descriptor_t task; + NDR_record_t ndr; + exception_type_t exception; + mach_msg_type_number_t code_count; + integer_t code[EXCEPTION_CODE_MAX]; + char padding[512]; +}; + +struct ExceptionParameters { + ExceptionParameters() : count(0) {} + mach_msg_type_number_t count; + exception_mask_t masks[EXC_TYPES_COUNT]; + mach_port_t ports[EXC_TYPES_COUNT]; + exception_behavior_t behaviors[EXC_TYPES_COUNT]; + thread_state_flavor_t flavors[EXC_TYPES_COUNT]; +}; + +struct ExceptionReplyMessage { + mach_msg_header_t header; + NDR_record_t ndr; + kern_return_t return_code; +}; + +// Only catch these three exceptions. The other ones are nebulously defined +// and may result in treating a non-fatal exception as fatal. +exception_mask_t s_exception_mask = EXC_MASK_BAD_ACCESS | +EXC_MASK_BAD_INSTRUCTION | EXC_MASK_ARITHMETIC | EXC_MASK_BREAKPOINT; + +#if !TARGET_OS_IPHONE +extern "C" +{ + // Forward declarations for functions that need "C" style compilation + boolean_t exc_server(mach_msg_header_t *request, + mach_msg_header_t *reply); + + // This symbol must be visible to dlsym() - see + // http://code.google.com/p/google-breakpad/issues/detail?id=345 for details. + kern_return_t catch_exception_raise(mach_port_t target_port, + mach_port_t failed_thread, + mach_port_t task, + exception_type_t exception, + exception_data_t code, + mach_msg_type_number_t code_count) + __attribute__((visibility("default"))); +} +#endif + +kern_return_t ForwardException(mach_port_t task, + mach_port_t failed_thread, + exception_type_t exception, + exception_data_t code, + mach_msg_type_number_t code_count); + +#if TARGET_OS_IPHONE +// Implementation is based on the implementation generated by mig. +boolean_t breakpad_exc_server(mach_msg_header_t *InHeadP, + mach_msg_header_t *OutHeadP) { + OutHeadP->msgh_bits = + MACH_MSGH_BITS(MACH_MSGH_BITS_REMOTE(InHeadP->msgh_bits), 0); + OutHeadP->msgh_remote_port = InHeadP->msgh_remote_port; + /* Minimal size: routine() will update it if different */ + OutHeadP->msgh_size = (mach_msg_size_t)sizeof(mig_reply_error_t); + OutHeadP->msgh_local_port = MACH_PORT_NULL; + OutHeadP->msgh_id = InHeadP->msgh_id + 100; + + if (InHeadP->msgh_id != 2401) { + ((mig_reply_error_t *)OutHeadP)->NDR = NDR_record; + ((mig_reply_error_t *)OutHeadP)->RetCode = MIG_BAD_ID; + return FALSE; + } + +#ifdef __MigPackStructs +#pragma pack(4) +#endif + typedef struct { + mach_msg_header_t Head; + /* start of the kernel processed data */ + mach_msg_body_t msgh_body; + mach_msg_port_descriptor_t thread; + mach_msg_port_descriptor_t task; + /* end of the kernel processed data */ + NDR_record_t NDR; + exception_type_t exception; + mach_msg_type_number_t codeCnt; + integer_t code[2]; + mach_msg_trailer_t trailer; + } Request; + + typedef struct { + mach_msg_header_t Head; + NDR_record_t NDR; + kern_return_t RetCode; + } Reply; +#ifdef __MigPackStructs +#pragma pack() +#endif + + Request *In0P = (Request *)InHeadP; + Reply *OutP = (Reply *)OutHeadP; + + if (In0P->task.name != mach_task_self()) { + return FALSE; + } + OutP->RetCode = ForwardException(In0P->task.name, + In0P->thread.name, + In0P->exception, + In0P->code, + In0P->codeCnt); + OutP->NDR = NDR_record; + return TRUE; +} +#else +boolean_t breakpad_exc_server(mach_msg_header_t *request, + mach_msg_header_t *reply) { + return exc_server(request, reply); +} + +// Callback from exc_server() +kern_return_t catch_exception_raise(mach_port_t port, mach_port_t failed_thread, + mach_port_t task, + exception_type_t exception, + exception_data_t code, + mach_msg_type_number_t code_count) { + if (task != mach_task_self()) { + return KERN_FAILURE; + } + return ForwardException(task, failed_thread, exception, code, code_count); +} +#endif + +ExceptionHandler::ExceptionHandler(const string &dump_path, + FilterCallback filter, + MinidumpCallback callback, + void *callback_context, + bool install_handler, + const char *port_name) + : dump_path_(), + filter_(filter), + callback_(callback), + callback_context_(callback_context), + directCallback_(NULL), + handler_thread_(NULL), + handler_port_(MACH_PORT_NULL), + previous_(NULL), + installed_exception_handler_(false), + is_in_teardown_(false), + last_minidump_write_result_(false), + use_minidump_write_mutex_(false) { + // This will update to the ID and C-string pointers + set_dump_path(dump_path); + MinidumpGenerator::GatherSystemInformation(); +#if !TARGET_OS_IPHONE + if (port_name) + crash_generation_client_.reset(new CrashGenerationClient(port_name)); +#endif + Setup(install_handler); +} + +// special constructor if we want to bypass minidump writing and +// simply get a callback with the exception information +ExceptionHandler::ExceptionHandler(DirectCallback callback, + void *callback_context, + bool install_handler) + : dump_path_(), + filter_(NULL), + callback_(NULL), + callback_context_(callback_context), + directCallback_(callback), + handler_thread_(NULL), + handler_port_(MACH_PORT_NULL), + previous_(NULL), + installed_exception_handler_(false), + is_in_teardown_(false), + last_minidump_write_result_(false), + use_minidump_write_mutex_(false) { + MinidumpGenerator::GatherSystemInformation(); + Setup(install_handler); +} + +ExceptionHandler::~ExceptionHandler() { + Teardown(); +} + +bool ExceptionHandler::WriteMinidump(bool write_exception_stream) { + // If we're currently writing, just return + if (use_minidump_write_mutex_) + return false; + + use_minidump_write_mutex_ = true; + last_minidump_write_result_ = false; + + // Lock the mutex. Since we just created it, this will return immediately. + if (pthread_mutex_lock(&minidump_write_mutex_) == 0) { + // Send an empty message to the handle port so that a minidump will + // be written + SendMessageToHandlerThread(write_exception_stream ? + kWriteDumpWithExceptionMessage : + kWriteDumpMessage); + + // Wait for the minidump writer to complete its writing. It will unlock + // the mutex when completed + pthread_mutex_lock(&minidump_write_mutex_); + } + + use_minidump_write_mutex_ = false; + UpdateNextID(); + return last_minidump_write_result_; +} + +// static +bool ExceptionHandler::WriteMinidump(const string &dump_path, + bool write_exception_stream, + MinidumpCallback callback, + void *callback_context) { + ExceptionHandler handler(dump_path, NULL, callback, callback_context, false, + NULL); + return handler.WriteMinidump(write_exception_stream); +} + +// static +bool ExceptionHandler::WriteMinidumpForChild(mach_port_t child, + mach_port_t child_blamed_thread, + const string &dump_path, + MinidumpCallback callback, + void *callback_context) { + ScopedTaskSuspend suspend(child); + + MinidumpGenerator generator(child, MACH_PORT_NULL); + string dump_id; + string dump_filename = generator.UniqueNameInDirectory(dump_path, &dump_id); + + generator.SetExceptionInformation(EXC_BREAKPOINT, +#if defined (__i386__) || defined(__x86_64__) + EXC_I386_BPT, +#elif defined (__ppc__) || defined (__ppc64__) + EXC_PPC_BREAKPOINT, +#elif defined (__arm__) + EXC_ARM_BREAKPOINT, +#else +#error architecture not supported +#endif + 0, + child_blamed_thread); + bool result = generator.Write(dump_filename.c_str()); + + if (callback) { + return callback(dump_path.c_str(), dump_id.c_str(), + callback_context, result); + } + return result; +} + +bool ExceptionHandler::WriteMinidumpWithException(int exception_type, + int exception_code, + int exception_subcode, + mach_port_t thread_name, + bool exit_after_write, + bool report_current_thread) { + bool result = false; + + if (directCallback_) { + if (directCallback_(callback_context_, + exception_type, + exception_code, + exception_subcode, + thread_name) ) { + if (exit_after_write) + _exit(exception_type); + } +#if !TARGET_OS_IPHONE + } else if (IsOutOfProcess()) { + if (exception_type && exception_code) { + // If this is a real exception, give the filter (if any) a chance to + // decide if this should be sent. + if (filter_ && !filter_(callback_context_)) + return false; + return crash_generation_client_->RequestDumpForException( + exception_type, + exception_code, + exception_subcode, + thread_name); + } +#endif + } else { + string minidump_id; + + // Putting the MinidumpGenerator in its own context will ensure that the + // destructor is executed, closing the newly created minidump file. + if (!dump_path_.empty()) { + MinidumpGenerator md(mach_task_self(), + report_current_thread ? MACH_PORT_NULL : + mach_thread_self()); + if (exception_type && exception_code) { + // If this is a real exception, give the filter (if any) a chance to + // decide if this should be sent. + if (filter_ && !filter_(callback_context_)) + return false; + + md.SetExceptionInformation(exception_type, exception_code, + exception_subcode, thread_name); + } + + result = md.Write(next_minidump_path_c_); + } + + // Call user specified callback (if any) + if (callback_) { + // If the user callback returned true and we're handling an exception + // (rather than just writing out the file), then we should exit without + // forwarding the exception to the next handler. + if (callback_(dump_path_c_, next_minidump_id_c_, callback_context_, + result)) { + if (exit_after_write) + _exit(exception_type); + } + } + } + + return result; +} + +kern_return_t ForwardException(mach_port_t task, mach_port_t failed_thread, + exception_type_t exception, + exception_data_t code, + mach_msg_type_number_t code_count) { + // At this time, we should have called Uninstall() on the exception handler + // so that the current exception ports are the ones that we should be + // forwarding to. + ExceptionParameters current; + + current.count = EXC_TYPES_COUNT; + mach_port_t current_task = mach_task_self(); + task_get_exception_ports(current_task, + s_exception_mask, + current.masks, + ¤t.count, + current.ports, + current.behaviors, + current.flavors); + + // Find the first exception handler that matches the exception + unsigned int found; + for (found = 0; found < current.count; ++found) { + if (current.masks[found] & (1 << exception)) { + break; + } + } + + // Nothing to forward + if (found == current.count) { + fprintf(stderr, "** No previous ports for forwarding!! \n"); + exit(KERN_FAILURE); + } + + mach_port_t target_port = current.ports[found]; + exception_behavior_t target_behavior = current.behaviors[found]; + + kern_return_t result; + switch (target_behavior) { + case EXCEPTION_DEFAULT: + result = exception_raise(target_port, failed_thread, task, exception, + code, code_count); + break; + + default: + fprintf(stderr, "** Unknown exception behavior: %d\n", target_behavior); + result = KERN_FAILURE; + break; + } + + return result; +} + +// static +void *ExceptionHandler::WaitForMessage(void *exception_handler_class) { + ExceptionHandler *self = + reinterpret_cast<ExceptionHandler *>(exception_handler_class); + ExceptionMessage receive; + + // Wait for the exception info + while (1) { + receive.header.msgh_local_port = self->handler_port_; + receive.header.msgh_size = static_cast<mach_msg_size_t>(sizeof(receive)); + kern_return_t result = mach_msg(&(receive.header), + MACH_RCV_MSG | MACH_RCV_LARGE, 0, + receive.header.msgh_size, + self->handler_port_, + MACH_MSG_TIMEOUT_NONE, MACH_PORT_NULL); + + + if (result == KERN_SUCCESS) { + // Uninstall our handler so that we don't get in a loop if the process of + // writing out a minidump causes an exception. However, if the exception + // was caused by a fork'd process, don't uninstall things + + // If the actual exception code is zero, then we're calling this handler + // in a way that indicates that we want to either exit this thread or + // generate a minidump + // + // While reporting, all threads (except this one) must be suspended + // to avoid misleading stacks. If appropriate they will be resumed + // afterwards. + if (!receive.exception) { + // Don't touch self, since this message could have been sent + // from its destructor. + if (receive.header.msgh_id == kShutdownMessage) + return NULL; + + self->SuspendThreads(); + +#if USE_PROTECTED_ALLOCATIONS + if (gBreakpadAllocator) + gBreakpadAllocator->Unprotect(); +#endif + + mach_port_t thread = MACH_PORT_NULL; + int exception_type = 0; + int exception_code = 0; + if (receive.header.msgh_id == kWriteDumpWithExceptionMessage) { + thread = receive.thread.name; + exception_type = EXC_BREAKPOINT; +#if defined (__i386__) || defined(__x86_64__) + exception_code = EXC_I386_BPT; +#elif defined (__ppc__) || defined (__ppc64__) + exception_code = EXC_PPC_BREAKPOINT; +#elif defined (__arm__) + exception_code = EXC_ARM_BREAKPOINT; +#else +#error architecture not supported +#endif + } + + // Write out the dump and save the result for later retrieval + self->last_minidump_write_result_ = + self->WriteMinidumpWithException(exception_type, exception_code, + 0, thread, + false, false); + +#if USE_PROTECTED_ALLOCATIONS + if (gBreakpadAllocator) + gBreakpadAllocator->Protect(); +#endif + + self->ResumeThreads(); + + if (self->use_minidump_write_mutex_) + pthread_mutex_unlock(&self->minidump_write_mutex_); + } else { + // When forking a child process with the exception handler installed, + // if the child crashes, it will send the exception back to the parent + // process. The check for task == self_task() ensures that only + // exceptions that occur in the parent process are caught and + // processed. If the exception was not caused by this task, we + // still need to call into the exception server and have it return + // KERN_FAILURE (see catch_exception_raise) in order for the kernel + // to move onto the host exception handler for the child task + if (receive.task.name == mach_task_self()) { + self->SuspendThreads(); + +#if USE_PROTECTED_ALLOCATIONS + if (gBreakpadAllocator) + gBreakpadAllocator->Unprotect(); +#endif + + int subcode = 0; + if (receive.exception == EXC_BAD_ACCESS && receive.code_count > 1) + subcode = receive.code[1]; + + // Generate the minidump with the exception data. + self->WriteMinidumpWithException(receive.exception, receive.code[0], + subcode, receive.thread.name, true, + false); + +#if USE_PROTECTED_ALLOCATIONS + // This may have become protected again within + // WriteMinidumpWithException, but it needs to be unprotected for + // UninstallHandler. + if (gBreakpadAllocator) + gBreakpadAllocator->Unprotect(); +#endif + + self->UninstallHandler(true); + +#if USE_PROTECTED_ALLOCATIONS + if (gBreakpadAllocator) + gBreakpadAllocator->Protect(); +#endif + } + // Pass along the exception to the server, which will setup the + // message and call catch_exception_raise() and put the return + // code into the reply. + ExceptionReplyMessage reply; + if (!breakpad_exc_server(&receive.header, &reply.header)) + exit(1); + + // Send a reply and exit + mach_msg(&(reply.header), MACH_SEND_MSG, + reply.header.msgh_size, 0, MACH_PORT_NULL, + MACH_MSG_TIMEOUT_NONE, MACH_PORT_NULL); + } + } + } + + return NULL; +} + +//static +void ExceptionHandler::SignalHandler(int sig, siginfo_t* info, void* uc) { +#if USE_PROTECTED_ALLOCATIONS + if (gBreakpadAllocator) + gBreakpadAllocator->Unprotect(); +#endif + gProtectedData.handler->WriteMinidumpWithException( + EXC_SOFTWARE, + MD_EXCEPTION_CODE_MAC_ABORT, + 0, + mach_thread_self(), + true, + true); +#if USE_PROTECTED_ALLOCATIONS + if (gBreakpadAllocator) + gBreakpadAllocator->Protect(); +#endif +} + +bool ExceptionHandler::InstallHandler() { + // If a handler is already installed, something is really wrong. + if (gProtectedData.handler != NULL) { + return false; + } +#if TARGET_OS_IPHONE + if (!IsOutOfProcess()) { + struct sigaction sa; + memset(&sa, 0, sizeof(sa)); + sigemptyset(&sa.sa_mask); + sigaddset(&sa.sa_mask, SIGABRT); + sa.sa_sigaction = ExceptionHandler::SignalHandler; + sa.sa_flags = SA_SIGINFO; + + scoped_ptr<struct sigaction> old(new struct sigaction); + if (sigaction(SIGABRT, &sa, old.get()) == -1) { + return false; + } + old_handler_.swap(old); + gProtectedData.handler = this; +#if USE_PROTECTED_ALLOCATIONS + assert(((size_t)(gProtectedData.protected_buffer) & PAGE_MASK) == 0); + mprotect(gProtectedData.protected_buffer, PAGE_SIZE, PROT_READ); +#endif + } +#endif + + try { +#if USE_PROTECTED_ALLOCATIONS + previous_ = new (gBreakpadAllocator->Allocate(sizeof(ExceptionParameters)) ) + ExceptionParameters(); +#else + previous_ = new ExceptionParameters(); +#endif + + } + catch (std::bad_alloc) { + return false; + } + + // Save the current exception ports so that we can forward to them + previous_->count = EXC_TYPES_COUNT; + mach_port_t current_task = mach_task_self(); + kern_return_t result = task_get_exception_ports(current_task, + s_exception_mask, + previous_->masks, + &previous_->count, + previous_->ports, + previous_->behaviors, + previous_->flavors); + + // Setup the exception ports on this task + if (result == KERN_SUCCESS) + result = task_set_exception_ports(current_task, s_exception_mask, + handler_port_, EXCEPTION_DEFAULT, + THREAD_STATE_NONE); + + installed_exception_handler_ = (result == KERN_SUCCESS); + + return installed_exception_handler_; +} + +bool ExceptionHandler::UninstallHandler(bool in_exception) { + kern_return_t result = KERN_SUCCESS; + + if (old_handler_.get()) { + sigaction(SIGABRT, old_handler_.get(), NULL); +#if USE_PROTECTED_ALLOCATIONS + mprotect(gProtectedData.protected_buffer, PAGE_SIZE, + PROT_READ | PROT_WRITE); +#endif + old_handler_.reset(); + gProtectedData.handler = NULL; + } + + if (installed_exception_handler_) { + mach_port_t current_task = mach_task_self(); + + // Restore the previous ports + for (unsigned int i = 0; i < previous_->count; ++i) { + result = task_set_exception_ports(current_task, previous_->masks[i], + previous_->ports[i], + previous_->behaviors[i], + previous_->flavors[i]); + if (result != KERN_SUCCESS) + return false; + } + + // this delete should NOT happen if an exception just occurred! + if (!in_exception) { +#if USE_PROTECTED_ALLOCATIONS + previous_->~ExceptionParameters(); +#else + delete previous_; +#endif + } + + previous_ = NULL; + installed_exception_handler_ = false; + } + + return result == KERN_SUCCESS; +} + +bool ExceptionHandler::Setup(bool install_handler) { + if (pthread_mutex_init(&minidump_write_mutex_, NULL)) + return false; + + // Create a receive right + mach_port_t current_task = mach_task_self(); + kern_return_t result = mach_port_allocate(current_task, + MACH_PORT_RIGHT_RECEIVE, + &handler_port_); + // Add send right + if (result == KERN_SUCCESS) + result = mach_port_insert_right(current_task, handler_port_, handler_port_, + MACH_MSG_TYPE_MAKE_SEND); + + if (install_handler && result == KERN_SUCCESS) + if (!InstallHandler()) + return false; + + if (result == KERN_SUCCESS) { + // Install the handler in its own thread, detached as we won't be joining. + pthread_attr_t attr; + pthread_attr_init(&attr); + pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); + int thread_create_result = pthread_create(&handler_thread_, &attr, + &WaitForMessage, this); + pthread_attr_destroy(&attr); + result = thread_create_result ? KERN_FAILURE : KERN_SUCCESS; + } + + return result == KERN_SUCCESS ? true : false; +} + +bool ExceptionHandler::Teardown() { + kern_return_t result = KERN_SUCCESS; + is_in_teardown_ = true; + + if (!UninstallHandler(false)) + return false; + + // Send an empty message so that the handler_thread exits + if (SendMessageToHandlerThread(kShutdownMessage)) { + mach_port_t current_task = mach_task_self(); + result = mach_port_deallocate(current_task, handler_port_); + if (result != KERN_SUCCESS) + return false; + } else { + return false; + } + + handler_thread_ = NULL; + handler_port_ = MACH_PORT_NULL; + pthread_mutex_destroy(&minidump_write_mutex_); + + return result == KERN_SUCCESS; +} + +bool ExceptionHandler::SendMessageToHandlerThread( + HandlerThreadMessage message_id) { + ExceptionMessage msg; + memset(&msg, 0, sizeof(msg)); + msg.header.msgh_id = message_id; + if (message_id == kWriteDumpMessage || + message_id == kWriteDumpWithExceptionMessage) { + // Include this thread's port. + msg.thread.name = mach_thread_self(); + msg.thread.disposition = MACH_MSG_TYPE_PORT_SEND; + msg.thread.type = MACH_MSG_PORT_DESCRIPTOR; + } + msg.header.msgh_size = sizeof(msg) - sizeof(msg.padding); + msg.header.msgh_remote_port = handler_port_; + msg.header.msgh_bits = MACH_MSGH_BITS(MACH_MSG_TYPE_COPY_SEND, + MACH_MSG_TYPE_MAKE_SEND_ONCE); + kern_return_t result = mach_msg(&(msg.header), + MACH_SEND_MSG | MACH_SEND_TIMEOUT, + msg.header.msgh_size, 0, 0, + MACH_MSG_TIMEOUT_NONE, MACH_PORT_NULL); + + return result == KERN_SUCCESS; +} + +void ExceptionHandler::UpdateNextID() { + next_minidump_path_ = + (MinidumpGenerator::UniqueNameInDirectory(dump_path_, &next_minidump_id_)); + + next_minidump_path_c_ = next_minidump_path_.c_str(); + next_minidump_id_c_ = next_minidump_id_.c_str(); +} + +bool ExceptionHandler::SuspendThreads() { + thread_act_port_array_t threads_for_task; + mach_msg_type_number_t thread_count; + + if (task_threads(mach_task_self(), &threads_for_task, &thread_count)) + return false; + + // suspend all of the threads except for this one + for (unsigned int i = 0; i < thread_count; ++i) { + if (threads_for_task[i] != mach_thread_self()) { + if (thread_suspend(threads_for_task[i])) + return false; + } + } + + return true; +} + +bool ExceptionHandler::ResumeThreads() { + thread_act_port_array_t threads_for_task; + mach_msg_type_number_t thread_count; + + if (task_threads(mach_task_self(), &threads_for_task, &thread_count)) + return false; + + // resume all of the threads except for this one + for (unsigned int i = 0; i < thread_count; ++i) { + if (threads_for_task[i] != mach_thread_self()) { + if (thread_resume(threads_for_task[i])) + return false; + } + } + + return true; +} + +} // namespace google_breakpad diff --git a/3rdParty/Breakpad/src/client/mac/handler/exception_handler.h b/3rdParty/Breakpad/src/client/mac/handler/exception_handler.h new file mode 100644 index 0000000..ec09134 --- /dev/null +++ b/3rdParty/Breakpad/src/client/mac/handler/exception_handler.h @@ -0,0 +1,277 @@ +// Copyright (c) 2006, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// exception_handler.h: MacOS exception handler +// This class can install a Mach exception port handler to trap most common +// programming errors. If an exception occurs, a minidump file will be +// generated which contains detailed information about the process and the +// exception. + +#ifndef CLIENT_MAC_HANDLER_EXCEPTION_HANDLER_H__ +#define CLIENT_MAC_HANDLER_EXCEPTION_HANDLER_H__ + +#include <mach/mach.h> +#include <TargetConditionals.h> + +#include <string> + +#include "processor/scoped_ptr.h" + +#if !TARGET_OS_IPHONE +#include "client/mac/crash_generation/crash_generation_client.h" +#endif + +namespace google_breakpad { + +using std::string; + +struct ExceptionParameters; + +enum HandlerThreadMessage { + // Message ID telling the handler thread to write a dump. + kWriteDumpMessage = 0, + // Message ID telling the handler thread to write a dump and include + // an exception stream. + kWriteDumpWithExceptionMessage = 1, + // Message ID telling the handler thread to quit. + kShutdownMessage = 2 +}; + +class ExceptionHandler { + public: + // A callback function to run before Breakpad performs any substantial + // processing of an exception. A FilterCallback is called before writing + // a minidump. context is the parameter supplied by the user as + // callback_context when the handler was created. + // + // If a FilterCallback returns true, Breakpad will continue processing, + // attempting to write a minidump. If a FilterCallback returns false, Breakpad + // will immediately report the exception as unhandled without writing a + // minidump, allowing another handler the opportunity to handle it. + typedef bool (*FilterCallback)(void *context); + + // A callback function to run after the minidump has been written. + // |minidump_id| is a unique id for the dump, so the minidump + // file is <dump_dir>/<minidump_id>.dmp. + // |context| is the value passed into the constructor. + // |succeeded| indicates whether a minidump file was successfully written. + // Return true if the exception was fully handled and breakpad should exit. + // Return false to allow any other exception handlers to process the + // exception. + typedef bool (*MinidumpCallback)(const char *dump_dir, + const char *minidump_id, + void *context, bool succeeded); + + // A callback function which will be called directly if an exception occurs. + // This bypasses the minidump file writing and simply gives the client + // the exception information. + typedef bool (*DirectCallback)( void *context, + int exception_type, + int exception_code, + int exception_subcode, + mach_port_t thread_name); + + // Creates a new ExceptionHandler instance to handle writing minidumps. + // Minidump files will be written to dump_path, and the optional callback + // is called after writing the dump file, as described above. + // If install_handler is true, then a minidump will be written whenever + // an unhandled exception occurs. If it is false, minidumps will only + // be written when WriteMinidump is called. + // If port_name is non-NULL, attempt to perform out-of-process dump generation + // If port_name is NULL, in-process dump generation will be used. + ExceptionHandler(const string &dump_path, + FilterCallback filter, MinidumpCallback callback, + void *callback_context, bool install_handler, + const char *port_name); + + // A special constructor if we want to bypass minidump writing and + // simply get a callback with the exception information. + ExceptionHandler(DirectCallback callback, + void *callback_context, + bool install_handler); + + ~ExceptionHandler(); + + // Get and set the minidump path. + string dump_path() const { return dump_path_; } + void set_dump_path(const string &dump_path) { + dump_path_ = dump_path; + dump_path_c_ = dump_path_.c_str(); + UpdateNextID(); // Necessary to put dump_path_ in next_minidump_path_. + } + + // Writes a minidump immediately. This can be used to capture the + // execution state independently of a crash. Returns true on success. + bool WriteMinidump() { + return WriteMinidump(false); + } + + bool WriteMinidump(bool write_exception_stream); + + // Convenience form of WriteMinidump which does not require an + // ExceptionHandler instance. + static bool WriteMinidump(const string &dump_path, MinidumpCallback callback, + void *callback_context) { + return WriteMinidump(dump_path, false, callback, callback_context); + } + + static bool WriteMinidump(const string &dump_path, + bool write_exception_stream, + MinidumpCallback callback, + void *callback_context); + + // Write a minidump of child immediately. This can be used to capture + // the execution state of a child process independently of a crash. + static bool WriteMinidumpForChild(mach_port_t child, + mach_port_t child_blamed_thread, + const std::string &dump_path, + MinidumpCallback callback, + void *callback_context); + + // Returns whether out-of-process dump generation is used or not. + bool IsOutOfProcess() const { +#if TARGET_OS_IPHONE + return false; +#else + return crash_generation_client_.get() != NULL; +#endif + } + + private: + // Install the mach exception handler + bool InstallHandler(); + + // Uninstall the mach exception handler (if any) + bool UninstallHandler(bool in_exception); + + // Setup the handler thread, and if |install_handler| is true, install the + // mach exception port handler + bool Setup(bool install_handler); + + // Uninstall the mach exception handler (if any) and terminate the helper + // thread + bool Teardown(); + + // Send a mach message to the exception handler. Return true on + // success, false otherwise. + bool SendMessageToHandlerThread(HandlerThreadMessage message_id); + + // All minidump writing goes through this one routine + bool WriteMinidumpWithException(int exception_type, + int exception_code, + int exception_subcode, + mach_port_t thread_name, + bool exit_after_write, + bool report_current_thread); + + // When installed, this static function will be call from a newly created + // pthread with |this| as the argument + static void *WaitForMessage(void *exception_handler_class); + + // Signal handler for SIGABRT. + static void SignalHandler(int sig, siginfo_t* info, void* uc); + + // disallow copy ctor and operator= + explicit ExceptionHandler(const ExceptionHandler &); + void operator=(const ExceptionHandler &); + + // Generates a new ID and stores it in next_minidump_id_, and stores the + // path of the next minidump to be written in next_minidump_path_. + void UpdateNextID(); + + // These functions will suspend/resume all threads except for the + // reporting thread + bool SuspendThreads(); + bool ResumeThreads(); + + // The destination directory for the minidump + string dump_path_; + + // The basename of the next minidump w/o extension + string next_minidump_id_; + + // The full path to the next minidump to be written, including extension + string next_minidump_path_; + + // Pointers to the UTF-8 versions of above + const char *dump_path_c_; + const char *next_minidump_id_c_; + const char *next_minidump_path_c_; + + // The callback function and pointer to be passed back after the minidump + // has been written + FilterCallback filter_; + MinidumpCallback callback_; + void *callback_context_; + + // The callback function to be passed back when we don't want a minidump + // file to be written + DirectCallback directCallback_; + + // The thread that is created for the handler + pthread_t handler_thread_; + + // The port that is waiting on an exception message to be sent, if the + // handler is installed + mach_port_t handler_port_; + + // These variables save the previous exception handler's data so that it + // can be re-installed when this handler is uninstalled + ExceptionParameters *previous_; + + // True, if we've installed the exception handler + bool installed_exception_handler_; + + // True, if we're in the process of uninstalling the exception handler and + // the thread. + bool is_in_teardown_; + + // Save the last result of the last minidump + bool last_minidump_write_result_; + + // A mutex for use when writing out a minidump that was requested on a + // thread other than the exception handler. + pthread_mutex_t minidump_write_mutex_; + + // True, if we're using the mutext to indicate when mindump writing occurs + bool use_minidump_write_mutex_; + + // Old signal handler for SIGABRT. Used to be able to restore it when + // uninstalling. + scoped_ptr<struct sigaction> old_handler_; + +#if !TARGET_OS_IPHONE + // Client for out-of-process dump generation. + scoped_ptr<CrashGenerationClient> crash_generation_client_; +#endif +}; + +} // namespace google_breakpad + +#endif // CLIENT_MAC_HANDLER_EXCEPTION_HANDLER_H__ diff --git a/3rdParty/Breakpad/src/client/mac/handler/mach_vm_compat.h b/3rdParty/Breakpad/src/client/mac/handler/mach_vm_compat.h new file mode 100644 index 0000000..e0459be --- /dev/null +++ b/3rdParty/Breakpad/src/client/mac/handler/mach_vm_compat.h @@ -0,0 +1,49 @@ +// Copyright (c) 2011, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#ifndef CLIENT_MAC_GENERATOR_MACH_VM_COMPAT_H_ +#define CLIENT_MAC_GENERATOR_MACH_VM_COMPAT_H_ + +#include <TargetConditionals.h> + +// On iOS 5, mach/mach_vm.h is not supported anymore. As the architecture is 32 +// bits, we can use the simple vm_ functions instead of the mach_vm_ ones. +#if TARGET_OS_IPHONE +#include <mach/vm_map.h> +#define mach_vm_address_t vm_address_t +#define mach_vm_deallocate vm_deallocate +#define mach_vm_read vm_read +#define mach_vm_region vm_region +#define mach_vm_region_recurse vm_region_recurse +#define mach_vm_size_t vm_size_t +#else +#include <mach/mach_vm.h> +#endif // TARGET_OS_IPHONE + +#endif // CLIENT_MAC_GENERATOR_MACH_VM_COMPAT_H_ diff --git a/3rdParty/Breakpad/src/client/mac/handler/minidump_generator.cc b/3rdParty/Breakpad/src/client/mac/handler/minidump_generator.cc new file mode 100644 index 0000000..b1d429c --- /dev/null +++ b/3rdParty/Breakpad/src/client/mac/handler/minidump_generator.cc @@ -0,0 +1,1432 @@ +// Copyright (c) 2006, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include <algorithm> +#include <cstdio> + +#include <mach/host_info.h> +#include <mach/vm_statistics.h> +#include <mach-o/dyld.h> +#include <mach-o/loader.h> +#include <sys/sysctl.h> +#include <sys/resource.h> + +#include <CoreFoundation/CoreFoundation.h> + +#include "client/mac/handler/minidump_generator.h" + +#ifdef HAS_ARM_SUPPORT +#include <mach/arm/thread_status.h> +#endif +#ifdef HAS_PPC_SUPPORT +#include <mach/ppc/thread_status.h> +#endif +#ifdef HAS_X86_SUPPORT +#include <mach/i386/thread_status.h> +#endif + +#include "client/minidump_file_writer-inl.h" +#include "common/mac/file_id.h" +#include "common/mac/macho_id.h" +#include "common/mac/string_utilities.h" + +using MacStringUtils::ConvertToString; +using MacStringUtils::IntegerValueAtIndex; + +namespace google_breakpad { + +#if __LP64__ +#define LC_SEGMENT_ARCH LC_SEGMENT_64 +#else +#define LC_SEGMENT_ARCH LC_SEGMENT +#endif + +// constructor when generating from within the crashed process +MinidumpGenerator::MinidumpGenerator() + : writer_(), + exception_type_(0), + exception_code_(0), + exception_subcode_(0), + exception_thread_(0), + crashing_task_(mach_task_self()), + handler_thread_(mach_thread_self()), + cpu_type_(DynamicImages::GetNativeCPUType()), + dynamic_images_(NULL), + memory_blocks_(&allocator_) { + GatherSystemInformation(); +} + +// constructor when generating from a different process than the +// crashed process +MinidumpGenerator::MinidumpGenerator(mach_port_t crashing_task, + mach_port_t handler_thread) + : writer_(), + exception_type_(0), + exception_code_(0), + exception_subcode_(0), + exception_thread_(0), + crashing_task_(crashing_task), + handler_thread_(handler_thread), + cpu_type_(DynamicImages::GetNativeCPUType()), + dynamic_images_(NULL), + memory_blocks_(&allocator_) { + if (crashing_task != mach_task_self()) { + dynamic_images_ = new DynamicImages(crashing_task_); + cpu_type_ = dynamic_images_->GetCPUType(); + } else { + dynamic_images_ = NULL; + cpu_type_ = DynamicImages::GetNativeCPUType(); + } + + GatherSystemInformation(); +} + +MinidumpGenerator::~MinidumpGenerator() { + delete dynamic_images_; +} + +char MinidumpGenerator::build_string_[16]; +int MinidumpGenerator::os_major_version_ = 0; +int MinidumpGenerator::os_minor_version_ = 0; +int MinidumpGenerator::os_build_number_ = 0; + +// static +void MinidumpGenerator::GatherSystemInformation() { + // If this is non-zero, then we've already gathered the information + if (os_major_version_) + return; + + // This code extracts the version and build information from the OS + CFStringRef vers_path = + CFSTR("/System/Library/CoreServices/SystemVersion.plist"); + CFURLRef sys_vers = + CFURLCreateWithFileSystemPath(NULL, + vers_path, + kCFURLPOSIXPathStyle, + false); + CFDataRef data; + SInt32 error; + CFURLCreateDataAndPropertiesFromResource(NULL, sys_vers, &data, NULL, NULL, + &error); + + if (!data) { + CFRelease(sys_vers); + return; + } + + CFDictionaryRef list = static_cast<CFDictionaryRef> + (CFPropertyListCreateFromXMLData(NULL, data, kCFPropertyListImmutable, + NULL)); + if (!list) { + CFRelease(sys_vers); + CFRelease(data); + return; + } + + CFStringRef build_version = static_cast<CFStringRef> + (CFDictionaryGetValue(list, CFSTR("ProductBuildVersion"))); + CFStringRef product_version = static_cast<CFStringRef> + (CFDictionaryGetValue(list, CFSTR("ProductVersion"))); + string build_str = ConvertToString(build_version); + string product_str = ConvertToString(product_version); + + CFRelease(list); + CFRelease(sys_vers); + CFRelease(data); + + strlcpy(build_string_, build_str.c_str(), sizeof(build_string_)); + + // Parse the string that looks like "10.4.8" + os_major_version_ = IntegerValueAtIndex(product_str, 0); + os_minor_version_ = IntegerValueAtIndex(product_str, 1); + os_build_number_ = IntegerValueAtIndex(product_str, 2); +} + +string MinidumpGenerator::UniqueNameInDirectory(const string &dir, + string *unique_name) { + CFUUIDRef uuid = CFUUIDCreate(NULL); + CFStringRef uuid_cfstr = CFUUIDCreateString(NULL, uuid); + CFRelease(uuid); + string file_name(ConvertToString(uuid_cfstr)); + CFRelease(uuid_cfstr); + string path(dir); + + // Ensure that the directory (if non-empty) has a trailing slash so that + // we can append the file name and have a valid pathname. + if (!dir.empty()) { + if (dir.at(dir.size() - 1) != '/') + path.append(1, '/'); + } + + path.append(file_name); + path.append(".dmp"); + + if (unique_name) + *unique_name = file_name; + + return path; +} + +bool MinidumpGenerator::Write(const char *path) { + WriteStreamFN writers[] = { + &MinidumpGenerator::WriteThreadListStream, + &MinidumpGenerator::WriteMemoryListStream, + &MinidumpGenerator::WriteSystemInfoStream, + &MinidumpGenerator::WriteModuleListStream, + &MinidumpGenerator::WriteMiscInfoStream, + &MinidumpGenerator::WriteBreakpadInfoStream, + // Exception stream needs to be the last entry in this array as it may + // be omitted in the case where the minidump is written without an + // exception. + &MinidumpGenerator::WriteExceptionStream, + }; + bool result = false; + + // If opening was successful, create the header, directory, and call each + // writer. The destructor for the TypedMDRVAs will cause the data to be + // flushed. The destructor for the MinidumpFileWriter will close the file. + if (writer_.Open(path)) { + TypedMDRVA<MDRawHeader> header(&writer_); + TypedMDRVA<MDRawDirectory> dir(&writer_); + + if (!header.Allocate()) + return false; + + int writer_count = static_cast<int>(sizeof(writers) / sizeof(writers[0])); + + // If we don't have exception information, don't write out the + // exception stream + if (!exception_thread_ && !exception_type_) + --writer_count; + + // Add space for all writers + if (!dir.AllocateArray(writer_count)) + return false; + + MDRawHeader *header_ptr = header.get(); + header_ptr->signature = MD_HEADER_SIGNATURE; + header_ptr->version = MD_HEADER_VERSION; + time(reinterpret_cast<time_t *>(&(header_ptr->time_date_stamp))); + header_ptr->stream_count = writer_count; + header_ptr->stream_directory_rva = dir.position(); + + MDRawDirectory local_dir; + result = true; + for (int i = 0; (result) && (i < writer_count); ++i) { + result = (this->*writers[i])(&local_dir); + + if (result) + dir.CopyIndex(i, &local_dir); + } + } + return result; +} + +size_t MinidumpGenerator::CalculateStackSize(mach_vm_address_t start_addr) { + mach_vm_address_t stack_region_base = start_addr; + mach_vm_size_t stack_region_size; + natural_t nesting_level = 0; + vm_region_submap_info_64 submap_info; + mach_msg_type_number_t info_count = VM_REGION_SUBMAP_INFO_COUNT_64; + + vm_region_recurse_info_t region_info; + region_info = reinterpret_cast<vm_region_recurse_info_t>(&submap_info); + + if (start_addr == 0) { + return 0; + } + + kern_return_t result = + mach_vm_region_recurse(crashing_task_, &stack_region_base, + &stack_region_size, &nesting_level, + region_info, &info_count); + + if (result != KERN_SUCCESS || start_addr < stack_region_base) { + // Failure or stack corruption, since mach_vm_region had to go + // higher in the process address space to find a valid region. + return 0; + } + + unsigned int tag = submap_info.user_tag; + + // If the user tag is VM_MEMORY_STACK, look for more readable regions with + // the same tag placed immediately above the computed stack region. Under + // some circumstances, the stack for thread 0 winds up broken up into + // multiple distinct abutting regions. This can happen for several reasons, + // including user code that calls setrlimit(RLIMIT_STACK, ...) or changes + // the access on stack pages by calling mprotect. + if (tag == VM_MEMORY_STACK) { + while (true) { + mach_vm_address_t next_region_base = stack_region_base + + stack_region_size; + mach_vm_address_t proposed_next_region_base = next_region_base; + mach_vm_size_t next_region_size; + nesting_level = 0; + mach_msg_type_number_t info_count = VM_REGION_SUBMAP_INFO_COUNT_64; + result = mach_vm_region_recurse(crashing_task_, &next_region_base, + &next_region_size, &nesting_level, + region_info, &info_count); + if (result != KERN_SUCCESS || + next_region_base != proposed_next_region_base || + submap_info.user_tag != tag || + (submap_info.protection & VM_PROT_READ) == 0) { + break; + } + + stack_region_size += next_region_size; + } + } + + return stack_region_base + stack_region_size - start_addr; +} + +bool MinidumpGenerator::WriteStackFromStartAddress( + mach_vm_address_t start_addr, + MDMemoryDescriptor *stack_location) { + UntypedMDRVA memory(&writer_); + + bool result = false; + size_t size = CalculateStackSize(start_addr); + + if (size == 0) { + // In some situations the stack address for the thread can come back 0. + // In these cases we skip over the threads in question and stuff the + // stack with a clearly borked value. + start_addr = 0xDEADBEEF; + size = 16; + if (!memory.Allocate(size)) + return false; + + unsigned long long dummy_stack[2]; // Fill dummy stack with 16 bytes of + // junk. + dummy_stack[0] = 0xDEADBEEF; + dummy_stack[1] = 0xDEADBEEF; + + result = memory.Copy(dummy_stack, size); + } else { + + if (!memory.Allocate(size)) + return false; + + if (dynamic_images_) { + vector<uint8_t> stack_memory; + if (ReadTaskMemory(crashing_task_, + start_addr, + size, + stack_memory) != KERN_SUCCESS) { + return false; + } + + result = memory.Copy(&stack_memory[0], size); + } else { + result = memory.Copy(reinterpret_cast<const void *>(start_addr), size); + } + } + + stack_location->start_of_memory_range = start_addr; + stack_location->memory = memory.location(); + + return result; +} + +bool MinidumpGenerator::WriteStack(breakpad_thread_state_data_t state, + MDMemoryDescriptor *stack_location) { + switch (cpu_type_) { +#ifdef HAS_ARM_SUPPORT + case CPU_TYPE_ARM: + return WriteStackARM(state, stack_location); +#endif +#ifdef HAS_PPC_SUPPORT + case CPU_TYPE_POWERPC: + return WriteStackPPC(state, stack_location); + case CPU_TYPE_POWERPC64: + return WriteStackPPC64(state, stack_location); +#endif +#ifdef HAS_X86_SUPPORT + case CPU_TYPE_I386: + return WriteStackX86(state, stack_location); + case CPU_TYPE_X86_64: + return WriteStackX86_64(state, stack_location); +#endif + default: + return false; + } +} + +bool MinidumpGenerator::WriteContext(breakpad_thread_state_data_t state, + MDLocationDescriptor *register_location) { + switch (cpu_type_) { +#ifdef HAS_ARM_SUPPORT + case CPU_TYPE_ARM: + return WriteContextARM(state, register_location); +#endif +#ifdef HAS_PPC_SUPPORT + case CPU_TYPE_POWERPC: + return WriteContextPPC(state, register_location); + case CPU_TYPE_POWERPC64: + return WriteContextPPC64(state, register_location); +#endif +#ifdef HAS_X86_SUPPORT + case CPU_TYPE_I386: + return WriteContextX86(state, register_location); + case CPU_TYPE_X86_64: + return WriteContextX86_64(state, register_location); +#endif + default: + return false; + } +} + +u_int64_t MinidumpGenerator::CurrentPCForStack( + breakpad_thread_state_data_t state) { + switch (cpu_type_) { +#ifdef HAS_ARM_SUPPORT + case CPU_TYPE_ARM: + return CurrentPCForStackARM(state); +#endif +#ifdef HAS_PPC_SUPPORT + case CPU_TYPE_POWERPC: + return CurrentPCForStackPPC(state); + case CPU_TYPE_POWERPC64: + return CurrentPCForStackPPC64(state); +#endif +#ifdef HAS_X86_SUPPORT + case CPU_TYPE_I386: + return CurrentPCForStackX86(state); + case CPU_TYPE_X86_64: + return CurrentPCForStackX86_64(state); +#endif + default: + assert("Unknown CPU type!"); + return 0; + } +} + +#ifdef HAS_ARM_SUPPORT +bool MinidumpGenerator::WriteStackARM(breakpad_thread_state_data_t state, + MDMemoryDescriptor *stack_location) { + arm_thread_state_t *machine_state = + reinterpret_cast<arm_thread_state_t *>(state); + mach_vm_address_t start_addr = REGISTER_FROM_THREADSTATE(machine_state, sp); + return WriteStackFromStartAddress(start_addr, stack_location); +} + +u_int64_t +MinidumpGenerator::CurrentPCForStackARM(breakpad_thread_state_data_t state) { + arm_thread_state_t *machine_state = + reinterpret_cast<arm_thread_state_t *>(state); + + return REGISTER_FROM_THREADSTATE(machine_state, pc); +} + +bool MinidumpGenerator::WriteContextARM(breakpad_thread_state_data_t state, + MDLocationDescriptor *register_location) +{ + TypedMDRVA<MDRawContextARM> context(&writer_); + arm_thread_state_t *machine_state = + reinterpret_cast<arm_thread_state_t *>(state); + + if (!context.Allocate()) + return false; + + *register_location = context.location(); + MDRawContextARM *context_ptr = context.get(); + context_ptr->context_flags = MD_CONTEXT_ARM_FULL; + +#define AddGPR(a) context_ptr->iregs[a] = REGISTER_FROM_THREADSTATE(machine_state, r[a]) + + context_ptr->iregs[13] = REGISTER_FROM_THREADSTATE(machine_state, sp); + context_ptr->iregs[14] = REGISTER_FROM_THREADSTATE(machine_state, lr); + context_ptr->iregs[15] = REGISTER_FROM_THREADSTATE(machine_state, pc); + context_ptr->cpsr = REGISTER_FROM_THREADSTATE(machine_state, cpsr); + + AddGPR(0); + AddGPR(1); + AddGPR(2); + AddGPR(3); + AddGPR(4); + AddGPR(5); + AddGPR(6); + AddGPR(7); + AddGPR(8); + AddGPR(9); + AddGPR(10); + AddGPR(11); + AddGPR(12); +#undef AddReg +#undef AddGPR + + return true; +} +#endif + +#ifdef HAS_PCC_SUPPORT +bool MinidumpGenerator::WriteStackPPC(breakpad_thread_state_data_t state, + MDMemoryDescriptor *stack_location) { + ppc_thread_state_t *machine_state = + reinterpret_cast<ppc_thread_state_t *>(state); + mach_vm_address_t start_addr = REGISTER_FROM_THREADSTATE(machine_state, r1); + return WriteStackFromStartAddress(start_addr, stack_location); +} + +bool MinidumpGenerator::WriteStackPPC64(breakpad_thread_state_data_t state, + MDMemoryDescriptor *stack_location) { + ppc_thread_state64_t *machine_state = + reinterpret_cast<ppc_thread_state64_t *>(state); + mach_vm_address_t start_addr = REGISTER_FROM_THREADSTATE(machine_state, r1); + return WriteStackFromStartAddress(start_addr, stack_location); +} + +u_int64_t +MinidumpGenerator::CurrentPCForStackPPC(breakpad_thread_state_data_t state) { + ppc_thread_state_t *machine_state = + reinterpret_cast<ppc_thread_state_t *>(state); + + return REGISTER_FROM_THREADSTATE(machine_state, srr0); +} + +u_int64_t +MinidumpGenerator::CurrentPCForStackPPC64(breakpad_thread_state_data_t state) { + ppc_thread_state64_t *machine_state = + reinterpret_cast<ppc_thread_state64_t *>(state); + + return REGISTER_FROM_THREADSTATE(machine_state, srr0); +} + +bool MinidumpGenerator::WriteContextPPC(breakpad_thread_state_data_t state, + MDLocationDescriptor *register_location) +{ + TypedMDRVA<MDRawContextPPC> context(&writer_); + ppc_thread_state_t *machine_state = + reinterpret_cast<ppc_thread_state_t *>(state); + + if (!context.Allocate()) + return false; + + *register_location = context.location(); + MDRawContextPPC *context_ptr = context.get(); + context_ptr->context_flags = MD_CONTEXT_PPC_BASE; + +#define AddReg(a) context_ptr->a = REGISTER_FROM_THREADSTATE(machine_state, a) +#define AddGPR(a) context_ptr->gpr[a] = REGISTER_FROM_THREADSTATE(machine_state, r ## a) + + AddReg(srr0); + AddReg(cr); + AddReg(xer); + AddReg(ctr); + AddReg(lr); + AddReg(vrsave); + + AddGPR(0); + AddGPR(1); + AddGPR(2); + AddGPR(3); + AddGPR(4); + AddGPR(5); + AddGPR(6); + AddGPR(7); + AddGPR(8); + AddGPR(9); + AddGPR(10); + AddGPR(11); + AddGPR(12); + AddGPR(13); + AddGPR(14); + AddGPR(15); + AddGPR(16); + AddGPR(17); + AddGPR(18); + AddGPR(19); + AddGPR(20); + AddGPR(21); + AddGPR(22); + AddGPR(23); + AddGPR(24); + AddGPR(25); + AddGPR(26); + AddGPR(27); + AddGPR(28); + AddGPR(29); + AddGPR(30); + AddGPR(31); + AddReg(mq); +#undef AddReg +#undef AddGPR + + return true; +} + +bool MinidumpGenerator::WriteContextPPC64( + breakpad_thread_state_data_t state, + MDLocationDescriptor *register_location) { + TypedMDRVA<MDRawContextPPC64> context(&writer_); + ppc_thread_state64_t *machine_state = + reinterpret_cast<ppc_thread_state64_t *>(state); + + if (!context.Allocate()) + return false; + + *register_location = context.location(); + MDRawContextPPC64 *context_ptr = context.get(); + context_ptr->context_flags = MD_CONTEXT_PPC_BASE; + +#define AddReg(a) context_ptr->a = REGISTER_FROM_THREADSTATE(machine_state, a) +#define AddGPR(a) context_ptr->gpr[a] = REGISTER_FROM_THREADSTATE(machine_state, r ## a) + + AddReg(srr0); + AddReg(cr); + AddReg(xer); + AddReg(ctr); + AddReg(lr); + AddReg(vrsave); + + AddGPR(0); + AddGPR(1); + AddGPR(2); + AddGPR(3); + AddGPR(4); + AddGPR(5); + AddGPR(6); + AddGPR(7); + AddGPR(8); + AddGPR(9); + AddGPR(10); + AddGPR(11); + AddGPR(12); + AddGPR(13); + AddGPR(14); + AddGPR(15); + AddGPR(16); + AddGPR(17); + AddGPR(18); + AddGPR(19); + AddGPR(20); + AddGPR(21); + AddGPR(22); + AddGPR(23); + AddGPR(24); + AddGPR(25); + AddGPR(26); + AddGPR(27); + AddGPR(28); + AddGPR(29); + AddGPR(30); + AddGPR(31); +#undef AddReg +#undef AddGPR + + return true; +} + +#endif + +#ifdef HAS_X86_SUPPORT +bool MinidumpGenerator::WriteStackX86(breakpad_thread_state_data_t state, + MDMemoryDescriptor *stack_location) { + i386_thread_state_t *machine_state = + reinterpret_cast<i386_thread_state_t *>(state); + + mach_vm_address_t start_addr = REGISTER_FROM_THREADSTATE(machine_state, esp); + return WriteStackFromStartAddress(start_addr, stack_location); +} + +bool MinidumpGenerator::WriteStackX86_64(breakpad_thread_state_data_t state, + MDMemoryDescriptor *stack_location) { + x86_thread_state64_t *machine_state = + reinterpret_cast<x86_thread_state64_t *>(state); + + mach_vm_address_t start_addr = REGISTER_FROM_THREADSTATE(machine_state, rsp); + return WriteStackFromStartAddress(start_addr, stack_location); +} + +u_int64_t +MinidumpGenerator::CurrentPCForStackX86(breakpad_thread_state_data_t state) { + i386_thread_state_t *machine_state = + reinterpret_cast<i386_thread_state_t *>(state); + + return REGISTER_FROM_THREADSTATE(machine_state, eip); +} + +u_int64_t +MinidumpGenerator::CurrentPCForStackX86_64(breakpad_thread_state_data_t state) { + x86_thread_state64_t *machine_state = + reinterpret_cast<x86_thread_state64_t *>(state); + + return REGISTER_FROM_THREADSTATE(machine_state, rip); +} + +bool MinidumpGenerator::WriteContextX86(breakpad_thread_state_data_t state, + MDLocationDescriptor *register_location) +{ + TypedMDRVA<MDRawContextX86> context(&writer_); + i386_thread_state_t *machine_state = + reinterpret_cast<i386_thread_state_t *>(state); + + if (!context.Allocate()) + return false; + + *register_location = context.location(); + MDRawContextX86 *context_ptr = context.get(); + +#define AddReg(a) context_ptr->a = REGISTER_FROM_THREADSTATE(machine_state, a) + + context_ptr->context_flags = MD_CONTEXT_X86; + AddReg(eax); + AddReg(ebx); + AddReg(ecx); + AddReg(edx); + AddReg(esi); + AddReg(edi); + AddReg(ebp); + AddReg(esp); + + AddReg(cs); + AddReg(ds); + AddReg(ss); + AddReg(es); + AddReg(fs); + AddReg(gs); + AddReg(eflags); + + AddReg(eip); +#undef AddReg + + return true; +} + +bool MinidumpGenerator::WriteContextX86_64( + breakpad_thread_state_data_t state, + MDLocationDescriptor *register_location) { + TypedMDRVA<MDRawContextAMD64> context(&writer_); + x86_thread_state64_t *machine_state = + reinterpret_cast<x86_thread_state64_t *>(state); + + if (!context.Allocate()) + return false; + + *register_location = context.location(); + MDRawContextAMD64 *context_ptr = context.get(); + +#define AddReg(a) context_ptr->a = REGISTER_FROM_THREADSTATE(machine_state, a) + + context_ptr->context_flags = MD_CONTEXT_AMD64; + AddReg(rax); + AddReg(rbx); + AddReg(rcx); + AddReg(rdx); + AddReg(rdi); + AddReg(rsi); + AddReg(rbp); + AddReg(rsp); + AddReg(r8); + AddReg(r9); + AddReg(r10); + AddReg(r11); + AddReg(r12); + AddReg(r13); + AddReg(r14); + AddReg(r15); + AddReg(rip); + // according to AMD's software developer guide, bits above 18 are + // not used in the flags register. Since the minidump format + // specifies 32 bits for the flags register, we can truncate safely + // with no loss. + context_ptr->eflags = static_cast<u_int32_t>(REGISTER_FROM_THREADSTATE(machine_state, rflags)); + AddReg(cs); + AddReg(fs); + AddReg(gs); +#undef AddReg + + return true; +} +#endif + +bool MinidumpGenerator::GetThreadState(thread_act_t target_thread, + thread_state_t state, + mach_msg_type_number_t *count) { + thread_state_flavor_t flavor; + switch (cpu_type_) { +#ifdef HAS_ARM_SUPPORT + case CPU_TYPE_ARM: + flavor = ARM_THREAD_STATE; + break; +#endif +#ifdef HAS_PPC_SUPPORT + case CPU_TYPE_POWERPC: + flavor = PPC_THREAD_STATE; + break; + case CPU_TYPE_POWERPC64: + flavor = PPC_THREAD_STATE64; + break; +#endif +#ifdef HAS_X86_SUPPORT + case CPU_TYPE_I386: + flavor = i386_THREAD_STATE; + break; + case CPU_TYPE_X86_64: + flavor = x86_THREAD_STATE64; + break; +#endif + default: + return false; + } + return thread_get_state(target_thread, flavor, + state, count) == KERN_SUCCESS; +} + +bool MinidumpGenerator::WriteThreadStream(mach_port_t thread_id, + MDRawThread *thread) { + breakpad_thread_state_data_t state; + mach_msg_type_number_t state_count + = static_cast<mach_msg_type_number_t>(sizeof(state)); + + if (GetThreadState(thread_id, state, &state_count)) { + if (!WriteStack(state, &thread->stack)) + return false; + + memory_blocks_.push_back(thread->stack); + + if (!WriteContext(state, &thread->thread_context)) + return false; + + thread->thread_id = thread_id; + } else { + return false; + } + + return true; +} + +bool MinidumpGenerator::WriteThreadListStream( + MDRawDirectory *thread_list_stream) { + TypedMDRVA<MDRawThreadList> list(&writer_); + thread_act_port_array_t threads_for_task; + mach_msg_type_number_t thread_count; + int non_generator_thread_count; + + if (task_threads(crashing_task_, &threads_for_task, &thread_count)) + return false; + + // Don't include the generator thread + if (handler_thread_ != MACH_PORT_NULL) + non_generator_thread_count = thread_count - 1; + else + non_generator_thread_count = thread_count; + if (!list.AllocateObjectAndArray(non_generator_thread_count, + sizeof(MDRawThread))) + return false; + + thread_list_stream->stream_type = MD_THREAD_LIST_STREAM; + thread_list_stream->location = list.location(); + + list.get()->number_of_threads = non_generator_thread_count; + + MDRawThread thread; + int thread_idx = 0; + + for (unsigned int i = 0; i < thread_count; ++i) { + memset(&thread, 0, sizeof(MDRawThread)); + + if (threads_for_task[i] != handler_thread_) { + if (!WriteThreadStream(threads_for_task[i], &thread)) + return false; + + list.CopyIndexAfterObject(thread_idx++, &thread, sizeof(MDRawThread)); + } + } + + return true; +} + +bool MinidumpGenerator::WriteMemoryListStream( + MDRawDirectory *memory_list_stream) { + TypedMDRVA<MDRawMemoryList> list(&writer_); + + // If the dump has an exception, include some memory around the + // instruction pointer. + const size_t kIPMemorySize = 256; // bytes + bool have_ip_memory = false; + MDMemoryDescriptor ip_memory_d; + if (exception_thread_ && exception_type_) { + breakpad_thread_state_data_t state; + mach_msg_type_number_t stateCount + = static_cast<mach_msg_type_number_t>(sizeof(state)); + + if (thread_get_state(exception_thread_, + BREAKPAD_MACHINE_THREAD_STATE, + state, + &stateCount) == KERN_SUCCESS) { + u_int64_t ip = CurrentPCForStack(state); + // Bound it to the upper and lower bounds of the region + // it's contained within. If it's not in a known memory region, + // don't bother trying to write it. + mach_vm_address_t addr = ip; + mach_vm_size_t size; + natural_t nesting_level = 0; + vm_region_submap_info_64 info; + mach_msg_type_number_t info_count = VM_REGION_SUBMAP_INFO_COUNT_64; + + kern_return_t ret = + mach_vm_region_recurse(crashing_task_, + &addr, + &size, + &nesting_level, + (vm_region_recurse_info_t)&info, + &info_count); + if (ret == KERN_SUCCESS && ip >= addr && ip < (addr + size)) { + // Try to get 128 bytes before and after the IP, but + // settle for whatever's available. + ip_memory_d.start_of_memory_range = + std::max(uintptr_t(addr), + uintptr_t(ip - (kIPMemorySize / 2))); + uintptr_t end_of_range = + std::min(uintptr_t(ip + (kIPMemorySize / 2)), + uintptr_t(addr + size)); + ip_memory_d.memory.data_size = + end_of_range - ip_memory_d.start_of_memory_range; + have_ip_memory = true; + // This needs to get appended to the list even though + // the memory bytes aren't filled in yet so the entire + // list can be written first. The memory bytes will get filled + // in after the memory list is written. + memory_blocks_.push_back(ip_memory_d); + } + } + } + + // Now fill in the memory list and write it. + unsigned memory_count = memory_blocks_.size(); + if (!list.AllocateObjectAndArray(memory_count, + sizeof(MDMemoryDescriptor))) + return false; + + memory_list_stream->stream_type = MD_MEMORY_LIST_STREAM; + memory_list_stream->location = list.location(); + + list.get()->number_of_memory_ranges = memory_count; + + unsigned int i; + for (i = 0; i < memory_count; ++i) { + list.CopyIndexAfterObject(i, &memory_blocks_[i], + sizeof(MDMemoryDescriptor)); + } + + if (have_ip_memory) { + // Now read the memory around the instruction pointer. + UntypedMDRVA ip_memory(&writer_); + if (!ip_memory.Allocate(ip_memory_d.memory.data_size)) + return false; + + if (dynamic_images_) { + // Out-of-process. + vector<uint8_t> memory; + if (ReadTaskMemory(crashing_task_, + ip_memory_d.start_of_memory_range, + ip_memory_d.memory.data_size, + memory) != KERN_SUCCESS) { + return false; + } + + ip_memory.Copy(&memory[0], ip_memory_d.memory.data_size); + } else { + // In-process, just copy from local memory. + ip_memory.Copy( + reinterpret_cast<const void *>(ip_memory_d.start_of_memory_range), + ip_memory_d.memory.data_size); + } + + ip_memory_d.memory = ip_memory.location(); + // Write this again now that the data location is filled in. + list.CopyIndexAfterObject(i - 1, &ip_memory_d, + sizeof(MDMemoryDescriptor)); + } + + return true; +} + +bool +MinidumpGenerator::WriteExceptionStream(MDRawDirectory *exception_stream) { + TypedMDRVA<MDRawExceptionStream> exception(&writer_); + + if (!exception.Allocate()) + return false; + + exception_stream->stream_type = MD_EXCEPTION_STREAM; + exception_stream->location = exception.location(); + MDRawExceptionStream *exception_ptr = exception.get(); + exception_ptr->thread_id = exception_thread_; + + // This naming is confusing, but it is the proper translation from + // mach naming to minidump naming. + exception_ptr->exception_record.exception_code = exception_type_; + exception_ptr->exception_record.exception_flags = exception_code_; + + breakpad_thread_state_data_t state; + mach_msg_type_number_t state_count + = static_cast<mach_msg_type_number_t>(sizeof(state)); + + if (!GetThreadState(exception_thread_, state, &state_count)) + return false; + + if (!WriteContext(state, &exception_ptr->thread_context)) + return false; + + if (exception_type_ == EXC_BAD_ACCESS) + exception_ptr->exception_record.exception_address = exception_subcode_; + else + exception_ptr->exception_record.exception_address = CurrentPCForStack(state); + + return true; +} + +bool MinidumpGenerator::WriteSystemInfoStream( + MDRawDirectory *system_info_stream) { + TypedMDRVA<MDRawSystemInfo> info(&writer_); + + if (!info.Allocate()) + return false; + + system_info_stream->stream_type = MD_SYSTEM_INFO_STREAM; + system_info_stream->location = info.location(); + + // CPU Information + uint32_t number_of_processors; + size_t len = sizeof(number_of_processors); + sysctlbyname("hw.ncpu", &number_of_processors, &len, NULL, 0); + MDRawSystemInfo *info_ptr = info.get(); + + switch (cpu_type_) { +#ifdef HAS_ARM_SUPPORT + case CPU_TYPE_ARM: + info_ptr->processor_architecture = MD_CPU_ARCHITECTURE_ARM; + break; +#endif +#ifdef HAS_PPC_SUPPORT + case CPU_TYPE_POWERPC: + case CPU_TYPE_POWERPC64: + info_ptr->processor_architecture = MD_CPU_ARCHITECTURE_PPC; + break; +#endif +#ifdef HAS_X86_SUPPORT + case CPU_TYPE_I386: + case CPU_TYPE_X86_64: + if (cpu_type_ == CPU_TYPE_I386) + info_ptr->processor_architecture = MD_CPU_ARCHITECTURE_X86; + else + info_ptr->processor_architecture = MD_CPU_ARCHITECTURE_AMD64; +#ifdef __i386__ + // ebx is used for PIC code, so we need + // to preserve it. +#define cpuid(op,eax,ebx,ecx,edx) \ + asm ("pushl %%ebx \n\t" \ + "cpuid \n\t" \ + "movl %%ebx,%1 \n\t" \ + "popl %%ebx" \ + : "=a" (eax), \ + "=g" (ebx), \ + "=c" (ecx), \ + "=d" (edx) \ + : "0" (op)) +#elif defined(__x86_64__) + +#define cpuid(op,eax,ebx,ecx,edx) \ + asm ("cpuid \n\t" \ + : "=a" (eax), \ + "=b" (ebx), \ + "=c" (ecx), \ + "=d" (edx) \ + : "0" (op)) +#endif + +#if defined(__i386__) || defined(__x86_64__) + int unused, unused2; + // get vendor id + cpuid(0, unused, info_ptr->cpu.x86_cpu_info.vendor_id[0], + info_ptr->cpu.x86_cpu_info.vendor_id[2], + info_ptr->cpu.x86_cpu_info.vendor_id[1]); + // get version and feature info + cpuid(1, info_ptr->cpu.x86_cpu_info.version_information, unused, unused2, + info_ptr->cpu.x86_cpu_info.feature_information); + + // family + info_ptr->processor_level = + (info_ptr->cpu.x86_cpu_info.version_information & 0xF00) >> 8; + // 0xMMSS (Model, Stepping) + info_ptr->processor_revision = + (info_ptr->cpu.x86_cpu_info.version_information & 0xF) | + ((info_ptr->cpu.x86_cpu_info.version_information & 0xF0) << 4); + + // decode extended model info + if (info_ptr->processor_level == 0xF || + info_ptr->processor_level == 0x6) { + info_ptr->processor_revision |= + ((info_ptr->cpu.x86_cpu_info.version_information & 0xF0000) >> 4); + } + + // decode extended family info + if (info_ptr->processor_level == 0xF) { + info_ptr->processor_level += + ((info_ptr->cpu.x86_cpu_info.version_information & 0xFF00000) >> 20); + } + +#endif // __i386__ || __x86_64_ + break; +#endif // HAS_X86_SUPPORT + default: + info_ptr->processor_architecture = MD_CPU_ARCHITECTURE_UNKNOWN; + break; + } + + info_ptr->number_of_processors = number_of_processors; +#if TARGET_OS_IPHONE + info_ptr->platform_id = MD_OS_IOS; +#else + info_ptr->platform_id = MD_OS_MAC_OS_X; +#endif // TARGET_OS_IPHONE + + MDLocationDescriptor build_string_loc; + + if (!writer_.WriteString(build_string_, 0, + &build_string_loc)) + return false; + + info_ptr->csd_version_rva = build_string_loc.rva; + info_ptr->major_version = os_major_version_; + info_ptr->minor_version = os_minor_version_; + info_ptr->build_number = os_build_number_; + + return true; +} + +bool MinidumpGenerator::WriteModuleStream(unsigned int index, + MDRawModule *module) { + if (dynamic_images_) { + // we're in a different process than the crashed process + DynamicImage *image = dynamic_images_->GetImage(index); + + if (!image) + return false; + + memset(module, 0, sizeof(MDRawModule)); + + MDLocationDescriptor string_location; + + string name = image->GetFilePath(); + if (!writer_.WriteString(name.c_str(), 0, &string_location)) + return false; + + module->base_of_image = image->GetVMAddr() + image->GetVMAddrSlide(); + module->size_of_image = static_cast<u_int32_t>(image->GetVMSize()); + module->module_name_rva = string_location.rva; + + // We'll skip the executable module, because they don't have + // LC_ID_DYLIB load commands, and the crash processing server gets + // version information from the Plist file, anyway. + if (index != (uint32_t)FindExecutableModule()) { + module->version_info.signature = MD_VSFIXEDFILEINFO_SIGNATURE; + module->version_info.struct_version |= MD_VSFIXEDFILEINFO_VERSION; + // Convert MAC dylib version format, which is a 32 bit number, to the + // format used by minidump. The mac format is <16 bits>.<8 bits>.<8 bits> + // so it fits nicely into the windows version with some massaging + // The mapping is: + // 1) upper 16 bits of MAC version go to lower 16 bits of product HI + // 2) Next most significant 8 bits go to upper 16 bits of product LO + // 3) Least significant 8 bits go to lower 16 bits of product LO + uint32_t modVersion = image->GetVersion(); + module->version_info.file_version_hi = 0; + module->version_info.file_version_hi = modVersion >> 16; + module->version_info.file_version_lo |= (modVersion & 0xff00) << 8; + module->version_info.file_version_lo |= (modVersion & 0xff); + } + + if (!WriteCVRecord(module, image->GetCPUType(), name.c_str(), false)) { + return false; + } + } else { + // Getting module info in the crashed process + const breakpad_mach_header *header; + header = (breakpad_mach_header*)_dyld_get_image_header(index); + if (!header) + return false; + +#ifdef __LP64__ + assert(header->magic == MH_MAGIC_64); + + if(header->magic != MH_MAGIC_64) + return false; +#else + assert(header->magic == MH_MAGIC); + + if(header->magic != MH_MAGIC) + return false; +#endif + + int cpu_type = header->cputype; + unsigned long slide = _dyld_get_image_vmaddr_slide(index); + const char* name = _dyld_get_image_name(index); + const struct load_command *cmd = + reinterpret_cast<const struct load_command *>(header + 1); + + memset(module, 0, sizeof(MDRawModule)); + + for (unsigned int i = 0; cmd && (i < header->ncmds); i++) { + if (cmd->cmd == LC_SEGMENT_ARCH) { + + const breakpad_mach_segment_command *seg = + reinterpret_cast<const breakpad_mach_segment_command *>(cmd); + + if (!strcmp(seg->segname, "__TEXT")) { + MDLocationDescriptor string_location; + + if (!writer_.WriteString(name, 0, &string_location)) + return false; + + module->base_of_image = seg->vmaddr + slide; + module->size_of_image = static_cast<u_int32_t>(seg->vmsize); + module->module_name_rva = string_location.rva; + + bool in_memory = false; +#if TARGET_OS_IPHONE + in_memory = true; +#endif + if (!WriteCVRecord(module, cpu_type, name, in_memory)) + return false; + + return true; + } + } + + cmd = reinterpret_cast<struct load_command*>((char *)cmd + cmd->cmdsize); + } + } + + return true; +} + +int MinidumpGenerator::FindExecutableModule() { + if (dynamic_images_) { + int index = dynamic_images_->GetExecutableImageIndex(); + + if (index >= 0) { + return index; + } + } else { + int image_count = _dyld_image_count(); + const struct mach_header *header; + + for (int index = 0; index < image_count; ++index) { + header = _dyld_get_image_header(index); + + if (header->filetype == MH_EXECUTE) + return index; + } + } + + // failed - just use the first image + return 0; +} + +bool MinidumpGenerator::WriteCVRecord(MDRawModule *module, int cpu_type, + const char *module_path, bool in_memory) { + TypedMDRVA<MDCVInfoPDB70> cv(&writer_); + + // Only return the last path component of the full module path + const char *module_name = strrchr(module_path, '/'); + + // Increment past the slash + if (module_name) + ++module_name; + else + module_name = "<Unknown>"; + + size_t module_name_length = strlen(module_name); + + if (!cv.AllocateObjectAndArray(module_name_length + 1, sizeof(u_int8_t))) + return false; + + if (!cv.CopyIndexAfterObject(0, module_name, module_name_length)) + return false; + + module->cv_record = cv.location(); + MDCVInfoPDB70 *cv_ptr = cv.get(); + cv_ptr->cv_signature = MD_CVINFOPDB70_SIGNATURE; + cv_ptr->age = 0; + + // Get the module identifier + unsigned char identifier[16]; + bool result = false; + if (in_memory) { + MacFileUtilities::MachoID macho(module_path, + reinterpret_cast<void *>(module->base_of_image), + static_cast<size_t>(module->size_of_image)); + result = macho.UUIDCommand(cpu_type, identifier); + if (!result) + result = macho.MD5(cpu_type, identifier); + } + + if (!result) { + FileID file_id(module_path); + result = file_id.MachoIdentifier(cpu_type, identifier); + } + + if (result) { + cv_ptr->signature.data1 = (uint32_t)identifier[0] << 24 | + (uint32_t)identifier[1] << 16 | (uint32_t)identifier[2] << 8 | + (uint32_t)identifier[3]; + cv_ptr->signature.data2 = (uint32_t)identifier[4] << 8 | identifier[5]; + cv_ptr->signature.data3 = (uint32_t)identifier[6] << 8 | identifier[7]; + cv_ptr->signature.data4[0] = identifier[8]; + cv_ptr->signature.data4[1] = identifier[9]; + cv_ptr->signature.data4[2] = identifier[10]; + cv_ptr->signature.data4[3] = identifier[11]; + cv_ptr->signature.data4[4] = identifier[12]; + cv_ptr->signature.data4[5] = identifier[13]; + cv_ptr->signature.data4[6] = identifier[14]; + cv_ptr->signature.data4[7] = identifier[15]; + } + + return true; +} + +bool MinidumpGenerator::WriteModuleListStream( + MDRawDirectory *module_list_stream) { + TypedMDRVA<MDRawModuleList> list(&writer_); + + size_t image_count = dynamic_images_ ? + static_cast<size_t>(dynamic_images_->GetImageCount()) : + _dyld_image_count(); + + if (!list.AllocateObjectAndArray(image_count, MD_MODULE_SIZE)) + return false; + + module_list_stream->stream_type = MD_MODULE_LIST_STREAM; + module_list_stream->location = list.location(); + list.get()->number_of_modules = image_count; + + // Write out the executable module as the first one + MDRawModule module; + size_t executableIndex = FindExecutableModule(); + + if (!WriteModuleStream(executableIndex, &module)) { + return false; + } + + list.CopyIndexAfterObject(0, &module, MD_MODULE_SIZE); + int destinationIndex = 1; // Write all other modules after this one + + for (size_t i = 0; i < image_count; ++i) { + if (i != executableIndex) { + if (!WriteModuleStream(i, &module)) { + return false; + } + + list.CopyIndexAfterObject(destinationIndex++, &module, MD_MODULE_SIZE); + } + } + + return true; +} + +bool MinidumpGenerator::WriteMiscInfoStream(MDRawDirectory *misc_info_stream) { + TypedMDRVA<MDRawMiscInfo> info(&writer_); + + if (!info.Allocate()) + return false; + + misc_info_stream->stream_type = MD_MISC_INFO_STREAM; + misc_info_stream->location = info.location(); + + MDRawMiscInfo *info_ptr = info.get(); + info_ptr->size_of_info = static_cast<u_int32_t>(sizeof(MDRawMiscInfo)); + info_ptr->flags1 = MD_MISCINFO_FLAGS1_PROCESS_ID | + MD_MISCINFO_FLAGS1_PROCESS_TIMES | + MD_MISCINFO_FLAGS1_PROCESSOR_POWER_INFO; + + // Process ID + info_ptr->process_id = getpid(); + + // Times + struct rusage usage; + if (getrusage(RUSAGE_SELF, &usage) != -1) { + // Omit the fractional time since the MDRawMiscInfo only wants seconds + info_ptr->process_user_time = + static_cast<u_int32_t>(usage.ru_utime.tv_sec); + info_ptr->process_kernel_time = + static_cast<u_int32_t>(usage.ru_stime.tv_sec); + } + int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, + static_cast<int>(info_ptr->process_id) }; + u_int mibsize = static_cast<u_int>(sizeof(mib) / sizeof(mib[0])); + struct kinfo_proc proc; + size_t size = sizeof(proc); + if (sysctl(mib, mibsize, &proc, &size, NULL, 0) == 0) { + info_ptr->process_create_time = + static_cast<u_int32_t>(proc.kp_proc.p_starttime.tv_sec); + } + + // Speed + uint64_t speed; + const uint64_t kOneMillion = 1000 * 1000; + size = sizeof(speed); + sysctlbyname("hw.cpufrequency_max", &speed, &size, NULL, 0); + info_ptr->processor_max_mhz = static_cast<u_int32_t>(speed / kOneMillion); + info_ptr->processor_mhz_limit = static_cast<u_int32_t>(speed / kOneMillion); + size = sizeof(speed); + sysctlbyname("hw.cpufrequency", &speed, &size, NULL, 0); + info_ptr->processor_current_mhz = static_cast<u_int32_t>(speed / kOneMillion); + + return true; +} + +bool MinidumpGenerator::WriteBreakpadInfoStream( + MDRawDirectory *breakpad_info_stream) { + TypedMDRVA<MDRawBreakpadInfo> info(&writer_); + + if (!info.Allocate()) + return false; + + breakpad_info_stream->stream_type = MD_BREAKPAD_INFO_STREAM; + breakpad_info_stream->location = info.location(); + MDRawBreakpadInfo *info_ptr = info.get(); + + if (exception_thread_ && exception_type_) { + info_ptr->validity = MD_BREAKPAD_INFO_VALID_DUMP_THREAD_ID | + MD_BREAKPAD_INFO_VALID_REQUESTING_THREAD_ID; + info_ptr->dump_thread_id = handler_thread_; + info_ptr->requesting_thread_id = exception_thread_; + } else { + info_ptr->validity = MD_BREAKPAD_INFO_VALID_DUMP_THREAD_ID; + info_ptr->dump_thread_id = handler_thread_; + info_ptr->requesting_thread_id = 0; + } + + return true; +} + +} // namespace google_breakpad diff --git a/3rdParty/Breakpad/src/client/mac/handler/minidump_generator.h b/3rdParty/Breakpad/src/client/mac/handler/minidump_generator.h new file mode 100644 index 0000000..8394ce6 --- /dev/null +++ b/3rdParty/Breakpad/src/client/mac/handler/minidump_generator.h @@ -0,0 +1,218 @@ +// Copyright (c) 2006, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// minidump_generator.h: Create a minidump of the current MacOS process. + +#ifndef CLIENT_MAC_GENERATOR_MINIDUMP_GENERATOR_H__ +#define CLIENT_MAC_GENERATOR_MINIDUMP_GENERATOR_H__ + +#include <mach/mach.h> +#include <TargetConditionals.h> + +#include <string> + +#include "client/minidump_file_writer.h" +#include "common/memory.h" +#include "common/mac/macho_utilities.h" +#include "google_breakpad/common/minidump_format.h" + +#include "dynamic_images.h" +#include "mach_vm_compat.h" + +#if !TARGET_OS_IPHONE && (MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_7) + #define HAS_PPC_SUPPORT +#endif +#if defined(__arm__) + #define HAS_ARM_SUPPORT +#elif defined(__i386__) || defined(__x86_64__) + #define HAS_X86_SUPPORT +#endif + +namespace google_breakpad { + +using std::string; + +// Use the REGISTER_FROM_THREADSTATE to access a register name from the +// breakpad_thread_state_t structure. +#if __DARWIN_UNIX03 || TARGET_CPU_X86_64 || TARGET_CPU_PPC64 || TARGET_CPU_ARM +// In The 10.5 SDK Headers Apple prepended __ to the variable names in the +// i386_thread_state_t structure. There's no good way to tell what version of +// the SDK we're compiling against so we just toggle on the same preprocessor +// symbol Apple's headers use. +#define REGISTER_FROM_THREADSTATE(a, b) ((a)->__ ## b) +#else +#define REGISTER_FROM_THREADSTATE(a, b) (a->b) +#endif + +// Creates a minidump file of the current process. If there is exception data, +// use SetExceptionInformation() to add this to the minidump. The minidump +// file is generated by the Write() function. +// Usage: +// MinidumpGenerator minidump(); +// minidump.Write("/tmp/minidump"); +// +class MinidumpGenerator { + public: + MinidumpGenerator(); + MinidumpGenerator(mach_port_t crashing_task, mach_port_t handler_thread); + + virtual ~MinidumpGenerator(); + + // Return <dir>/<unique_name>.dmp + // Sets |unique_name| (if requested) to the unique name for the minidump + static string UniqueNameInDirectory(const string &dir, string *unique_name); + + // Write out the minidump into |path| + // All of the components of |path| must exist and be writable + // Return true if successful, false otherwise + bool Write(const char *path); + + // Specify some exception information, if applicable + void SetExceptionInformation(int type, int code, int subcode, + mach_port_t thread_name) { + exception_type_ = type; + exception_code_ = code; + exception_subcode_ = subcode; + exception_thread_ = thread_name; + } + + // Gather system information. This should be call at least once before using + // the MinidumpGenerator class. + static void GatherSystemInformation(); + + protected: + // Overridable Stream writers + virtual bool WriteExceptionStream(MDRawDirectory *exception_stream); + + // Overridable Helper + virtual bool WriteThreadStream(mach_port_t thread_id, MDRawThread *thread); + + private: + typedef bool (MinidumpGenerator::*WriteStreamFN)(MDRawDirectory *); + + // Stream writers + bool WriteThreadListStream(MDRawDirectory *thread_list_stream); + bool WriteMemoryListStream(MDRawDirectory *memory_list_stream); + bool WriteSystemInfoStream(MDRawDirectory *system_info_stream); + bool WriteModuleListStream(MDRawDirectory *module_list_stream); + bool WriteMiscInfoStream(MDRawDirectory *misc_info_stream); + bool WriteBreakpadInfoStream(MDRawDirectory *breakpad_info_stream); + + // Helpers + u_int64_t CurrentPCForStack(breakpad_thread_state_data_t state); + bool GetThreadState(thread_act_t target_thread, thread_state_t state, + mach_msg_type_number_t *count); + bool WriteStackFromStartAddress(mach_vm_address_t start_addr, + MDMemoryDescriptor *stack_location); + bool WriteStack(breakpad_thread_state_data_t state, + MDMemoryDescriptor *stack_location); + bool WriteContext(breakpad_thread_state_data_t state, + MDLocationDescriptor *register_location); + bool WriteCVRecord(MDRawModule *module, int cpu_type, + const char *module_path, bool in_memory); + bool WriteModuleStream(unsigned int index, MDRawModule *module); + size_t CalculateStackSize(mach_vm_address_t start_addr); + int FindExecutableModule(); + + // Per-CPU implementations of these methods +#ifdef HAS_ARM_SUPPORT + bool WriteStackARM(breakpad_thread_state_data_t state, + MDMemoryDescriptor *stack_location); + bool WriteContextARM(breakpad_thread_state_data_t state, + MDLocationDescriptor *register_location); + u_int64_t CurrentPCForStackARM(breakpad_thread_state_data_t state); +#endif +#ifdef HAS_PPC_SUPPORT + bool WriteStackPPC(breakpad_thread_state_data_t state, + MDMemoryDescriptor *stack_location); + bool WriteContextPPC(breakpad_thread_state_data_t state, + MDLocationDescriptor *register_location); + u_int64_t CurrentPCForStackPPC(breakpad_thread_state_data_t state); + bool WriteStackPPC64(breakpad_thread_state_data_t state, + MDMemoryDescriptor *stack_location); + bool WriteContextPPC64(breakpad_thread_state_data_t state, + MDLocationDescriptor *register_location); + u_int64_t CurrentPCForStackPPC64(breakpad_thread_state_data_t state); +#endif +#ifdef HAS_X86_SUPPORT + bool WriteStackX86(breakpad_thread_state_data_t state, + MDMemoryDescriptor *stack_location); + bool WriteContextX86(breakpad_thread_state_data_t state, + MDLocationDescriptor *register_location); + u_int64_t CurrentPCForStackX86(breakpad_thread_state_data_t state); + bool WriteStackX86_64(breakpad_thread_state_data_t state, + MDMemoryDescriptor *stack_location); + bool WriteContextX86_64(breakpad_thread_state_data_t state, + MDLocationDescriptor *register_location); + u_int64_t CurrentPCForStackX86_64(breakpad_thread_state_data_t state); +#endif + + // disallow copy ctor and operator= + explicit MinidumpGenerator(const MinidumpGenerator &); + void operator=(const MinidumpGenerator &); + + protected: + // Use this writer to put the data to disk + MinidumpFileWriter writer_; + + private: + // Exception information + int exception_type_; + int exception_code_; + int exception_subcode_; + mach_port_t exception_thread_; + mach_port_t crashing_task_; + mach_port_t handler_thread_; + + // CPU type of the task being dumped. + cpu_type_t cpu_type_; + + // System information + static char build_string_[16]; + static int os_major_version_; + static int os_minor_version_; + static int os_build_number_; + + // Information about dynamically loaded code + DynamicImages *dynamic_images_; + + // PageAllocator makes it possible to allocate memory + // directly from the system, even while handling an exception. + mutable PageAllocator allocator_; + + protected: + // Blocks of memory written to the dump. These are all currently + // written while writing the thread list stream, but saved here + // so a memory list stream can be written afterwards. + wasteful_vector<MDMemoryDescriptor> memory_blocks_; +}; + +} // namespace google_breakpad + +#endif // CLIENT_MAC_GENERATOR_MINIDUMP_GENERATOR_H__ |