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+/* Copyright 2013 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_format.h: A cross-platform reimplementation of minidump-related
+ * portions of DbgHelp.h from the Windows Platform SDK.
+ *
+ * (This is C99 source, please don't corrupt it with C++.)
+ *
+ * This file contains the necessary definitions to read minidump files
+ * produced on ARM.  These files may be read on any platform provided
+ * that the alignments of these structures on the processing system are
+ * identical to the alignments of these structures on the producing system.
+ * For this reason, precise-sized types are used.  The structures defined
+ * by this file have been laid out to minimize alignment problems by
+ * ensuring that all members are aligned on their natural boundaries.
+ * In some cases, tail-padding may be significant when different ABIs specify
+ * different tail-padding behaviors.  To avoid problems when reading or
+ * writing affected structures, MD_*_SIZE macros are provided where needed,
+ * containing the useful size of the structures without padding.
+ *
+ * Structures that are defined by Microsoft to contain a zero-length array
+ * are instead defined here to contain an array with one element, as
+ * zero-length arrays are forbidden by standard C and C++.  In these cases,
+ * *_minsize constants are provided to be used in place of sizeof.  For a
+ * cleaner interface to these sizes when using C++, see minidump_size.h.
+ *
+ * These structures are also sufficient to populate minidump files.
+ *
+ * Because precise data type sizes are crucial for this implementation to
+ * function properly and portably, a set of primitive types with known sizes
+ * are used as the basis of each structure defined by this file.
+ *
+ * Author: Colin Blundell
+ */
+
+/*
+ * ARM64 support
+ */
+
+#ifndef GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_ARM64_H__
+#define GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_ARM64_H__
+
+#define MD_FLOATINGSAVEAREA_ARM64_FPR_COUNT 32
+
+typedef struct {
+  uint32_t       fpsr;      /* FPU status register */
+  uint32_t       fpcr;      /* FPU control register */
+
+  /* 32 128-bit floating point registers, d0 .. d31. */
+  uint128_struct regs[MD_FLOATINGSAVEAREA_ARM64_FPR_COUNT];
+} MDFloatingSaveAreaARM64;
+
+#define MD_CONTEXT_ARM64_GPR_COUNT 33
+
+/* Use the same 32-bit alignment when accessing this structure from 64-bit code
+ * as is used natively in 32-bit code. */
+#pragma pack(push, 4)
+
+typedef struct {
+  /* The next field determines the layout of the structure, and which parts
+   * of it are populated
+   */
+  uint64_t      context_flags;
+
+  /* 33 64-bit integer registers, x0 .. x31 + the PC
+   * Note the following fixed uses:
+   *   x29 is the frame pointer
+   *   x30 is the link register
+   *   x31 is the stack pointer
+   *   The PC is effectively x32.
+   */
+  uint64_t     iregs[MD_CONTEXT_ARM64_GPR_COUNT];
+
+  /* CPSR (flags, basically): 32 bits:
+        bit 31 - N (negative)
+        bit 30 - Z (zero)
+        bit 29 - C (carry)
+        bit 28 - V (overflow)
+        bit 27 - Q (saturation flag, sticky)
+     All other fields -- ignore */
+  uint32_t    cpsr;
+
+  /* The next field is included with MD_CONTEXT64_ARM_FLOATING_POINT */
+  MDFloatingSaveAreaARM64 float_save;
+
+} MDRawContextARM64;
+
+#pragma pack(pop)
+
+/* Indices into iregs for registers with a dedicated or conventional
+ * purpose.
+ */
+enum MDARM64RegisterNumbers {
+  MD_CONTEXT_ARM64_REG_FP     = 29,
+  MD_CONTEXT_ARM64_REG_LR     = 30,
+  MD_CONTEXT_ARM64_REG_SP     = 31,
+  MD_CONTEXT_ARM64_REG_PC     = 32
+};
+
+/* For (MDRawContextARM64).context_flags.  These values indicate the type of
+ * context stored in the structure. MD_CONTEXT_ARM64 is Breakpad-defined.
+ * This value was chosen to avoid likely conflicts with MD_CONTEXT_*
+ * for other CPUs. */
+#define MD_CONTEXT_ARM64                   0x80000000
+#define MD_CONTEXT_ARM64_INTEGER           (MD_CONTEXT_ARM64 | 0x00000002)
+#define MD_CONTEXT_ARM64_FLOATING_POINT    (MD_CONTEXT_ARM64 | 0x00000004)
+
+#define MD_CONTEXT_ARM64_FULL              (MD_CONTEXT_ARM64_INTEGER | \
+                                          MD_CONTEXT_ARM64_FLOATING_POINT)
+
+#define MD_CONTEXT_ARM64_ALL               (MD_CONTEXT_ARM64_INTEGER | \
+                                          MD_CONTEXT_ARM64_FLOATING_POINT)
+
+#endif  /* GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_ARM64_H__ */