1 // Copyright 2018 Google LLC
2 //
3 // Redistribution and use in source and binary forms, with or without
4 // modification, are permitted provided that the following conditions are
5 // met:
6 //
7 // * Redistributions of source code must retain the above copyright
8 // notice, this list of conditions and the following disclaimer.
9 // * Redistributions in binary form must reproduce the above
10 // copyright notice, this list of conditions and the following disclaimer
11 // in the documentation and/or other materials provided with the
12 // distribution.
13 // * Neither the name of Google LLC nor the names of its
14 // contributors may be used to endorse or promote products derived from
15 // this software without specific prior written permission.
16 //
17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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23 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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27 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29 #ifdef HAVE_CONFIG_H
30 #include <config.h> // Must come first
31 #endif
32
33 #include "processor/convert_old_arm64_context.h"
34
35 #include <string.h>
36
37 namespace google_breakpad {
38
ConvertOldARM64Context(const MDRawContextARM64_Old & old,MDRawContextARM64 * context)39 void ConvertOldARM64Context(const MDRawContextARM64_Old& old,
40 MDRawContextARM64* context) {
41 context->context_flags = MD_CONTEXT_ARM64;
42 if (old.context_flags & MD_CONTEXT_ARM64_INTEGER_OLD) {
43 context->context_flags |=
44 MD_CONTEXT_ARM64_INTEGER | MD_CONTEXT_ARM64_CONTROL;
45 }
46 if (old.context_flags & MD_CONTEXT_ARM64_FLOATING_POINT_OLD) {
47 context->context_flags |= MD_CONTEXT_ARM64_FLOATING_POINT;
48 }
49
50 context->cpsr = old.cpsr;
51
52 static_assert(sizeof(old.iregs) == sizeof(context->iregs),
53 "iregs size mismatch");
54 memcpy(context->iregs, old.iregs, sizeof(context->iregs));
55
56 static_assert(sizeof(old.float_save.regs) == sizeof(context->float_save.regs),
57 "float_save.regs size mismatch");
58 memcpy(context->float_save.regs,
59 old.float_save.regs,
60 sizeof(context->float_save.regs));
61 context->float_save.fpcr = old.float_save.fpcr;
62 context->float_save.fpsr = old.float_save.fpsr;
63
64 memset(context->bcr, 0, sizeof(context->bcr));
65 memset(context->bvr, 0, sizeof(context->bvr));
66 memset(context->wcr, 0, sizeof(context->wcr));
67 memset(context->wvr, 0, sizeof(context->wvr));
68 }
69
70 } // namespace google_breakpad
71