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libbacktrace, Mach-O : Support PowerPC archs.

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This adds the PPC architecture variants for Mach-O libbacktrace.

With this (as for X86 and Arm) when dsymutil is run on the binary
we get a basic usable backtrace.

Testsuite results on powerpc-apple-darwin9 are the same as for X86:
 * btest fails (TBC why)
 * dwarf5 tests fail because dsymutil does not handle that so far.

libbacktrace/ChangeLog:

	* macho.c (MACH_O_CPU_TYPE_PPC): New.
	(MACH_O_CPU_TYPE_PPC64): New.
	Add compile-tests for powerpc to the Mach-O variants.

Close #55
This commit is contained in:
Iain Sandoe
2020-09-16 08:03:05 +01:00
committed by Ian Lance Taylor
parent 77bcaa99f5
commit 753968c2e8
1 changed files with 6 additions and 0 deletions
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6
macho.c
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@@ -128,9 +128,11 @@ struct macho_fat_arch_64
#define MACH_O_CPU_TYPE_X86 7 #define MACH_O_CPU_TYPE_X86 7
#define MACH_O_CPU_TYPE_ARM 12 #define MACH_O_CPU_TYPE_ARM 12
#define MACH_O_CPU_TYPE_PPC 18
#define MACH_O_CPU_TYPE_X86_64 (MACH_O_CPU_TYPE_X86 | MACH_O_CPU_ARCH_ABI64) #define MACH_O_CPU_TYPE_X86_64 (MACH_O_CPU_TYPE_X86 | MACH_O_CPU_ARCH_ABI64)
#define MACH_O_CPU_TYPE_ARM64 (MACH_O_CPU_TYPE_ARM | MACH_O_CPU_ARCH_ABI64) #define MACH_O_CPU_TYPE_ARM64 (MACH_O_CPU_TYPE_ARM | MACH_O_CPU_ARCH_ABI64)
#define MACH_O_CPU_TYPE_PPC64 (MACH_O_CPU_TYPE_PPC | MACH_O_CPU_ARCH_ABI64)
/* The header of a load command. */ /* The header of a load command. */
@@ -776,6 +778,10 @@ macho_add_fat (struct backtrace_state *state, const char *filename,
cputype = MACH_O_CPU_TYPE_ARM64; cputype = MACH_O_CPU_TYPE_ARM64;
#elif defined (__arm__) #elif defined (__arm__)
cputype = MACH_O_CPU_TYPE_ARM; cputype = MACH_O_CPU_TYPE_ARM;
#elif defined (__ppc__)
cputype = MACH_O_CPU_TYPE_PPC;
#elif defined (__ppc64__)
cputype = MACH_O_CPU_TYPE_PPC64;
#else #else
error_callback (data, "unknown Mach-O architecture", 0); error_callback (data, "unknown Mach-O architecture", 0);
goto fail; goto fail;