1  // Copyright 2018 Google LLC
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 9  //     * Redistributions in binary form must reproduce the above
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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  
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