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mach-o: decode and display arm64 compact unwind entries.

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This commit is contained in:
Tristan Gingold 2015-11-18 16:45:03 +01:00
parent bcb51645d3
commit b53e4c0e7c
2 changed files with 69 additions and 0 deletions
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7
binutils/ChangeLog
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@ -1,3 +1,10 @@
2015-11-18 Tristan Gingold <gingold@adacore.com>
* od-macho.c (bfd_mach_o_load_command_name): Add new
entries.
(dump_unwind_encoding_arm64): New function.
(dump_unwind_encoding): Handle arm64.
2015-11-13 Tristan Gingold <gingold@adacore.com>
* configure: Regenerate.

62
binutils/od-macho.c
View File

@ -203,6 +203,9 @@ static const bfd_mach_o_xlat_name bfd_mach_o_load_command_name[] =
{ "data_in_code", BFD_MACH_O_LC_DATA_IN_CODE},
{ "source_version", BFD_MACH_O_LC_SOURCE_VERSION},
{ "dylib_code_sign_drs", BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS},
{ "encryption_info_64", BFD_MACH_O_LC_ENCRYPTION_INFO_64},
{ "linker_options", BFD_MACH_O_LC_LINKER_OPTIONS},
{ "linker_optimization_hint", BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT},
{ NULL, 0}
};
@ -1788,6 +1791,62 @@ dump_unwind_encoding_x86 (unsigned int encoding, unsigned int sz,
}
}
/* Dump arm64 compact unwind entries. */
static void
dump_unwind_encoding_arm64 (unsigned int encoding)
{
switch (encoding & MACH_O_UNWIND_ARM64_MODE_MASK)
{
case MACH_O_UNWIND_ARM64_MODE_FRAMELESS:
printf (" frameless");
break;
case MACH_O_UNWIND_ARM64_MODE_DWARF:
printf (" Dwarf offset: 0x%06x",
encoding & MACH_O_UNWIND_ARM64_DWARF_SECTION_OFFSET);
return;
case MACH_O_UNWIND_ARM64_MODE_FRAME:
printf (" frame");
break;
default:
printf (" [unhandled mode]");
return;
}
switch (encoding & MACH_O_UNWIND_ARM64_MODE_MASK)
{
case MACH_O_UNWIND_ARM64_MODE_FRAMELESS:
case MACH_O_UNWIND_ARM64_MODE_FRAME:
if (encoding & MACH_O_UNWIND_ARM64_FRAME_X19_X20_PAIR)
printf (" x19-x20");
if (encoding & MACH_O_UNWIND_ARM64_FRAME_X21_X22_PAIR)
printf (" x21-x22");
if (encoding & MACH_O_UNWIND_ARM64_FRAME_X23_X24_PAIR)
printf (" x23-x24");
if (encoding & MACH_O_UNWIND_ARM64_FRAME_X25_X26_PAIR)
printf (" x25-x26");
if (encoding & MACH_O_UNWIND_ARM64_FRAME_X27_X28_PAIR)
printf (" x27-x28");
break;
}
switch (encoding & MACH_O_UNWIND_ARM64_MODE_MASK)
{
case MACH_O_UNWIND_ARM64_MODE_FRAME:
if (encoding & MACH_O_UNWIND_ARM64_FRAME_D8_D9_PAIR)
printf (" d8-d9");
if (encoding & MACH_O_UNWIND_ARM64_FRAME_D10_D11_PAIR)
printf (" d10-d11");
if (encoding & MACH_O_UNWIND_ARM64_FRAME_D12_D13_PAIR)
printf (" d12-d13");
if (encoding & MACH_O_UNWIND_ARM64_FRAME_D14_D15_PAIR)
printf (" d14-d15");
break;
case MACH_O_UNWIND_ARM64_MODE_FRAMELESS:
printf (" size: %u",
(encoding & MACH_O_UNWIND_ARM64_FRAMELESS_STACK_SIZE_MASK) >> 8);
break;
}
}
static void
dump_unwind_encoding (bfd_mach_o_data_struct *mdata, unsigned int encoding)
{
@ -1803,6 +1862,9 @@ dump_unwind_encoding (bfd_mach_o_data_struct *mdata, unsigned int encoding)
case BFD_MACH_O_CPU_TYPE_I386:
dump_unwind_encoding_x86 (encoding, 4, unwind_x86_regs);
break;
case BFD_MACH_O_CPU_TYPE_ARM64:
dump_unwind_encoding_arm64 (encoding);
break;
default:
printf (" [unhandled cpu]");
break;