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X64: Implement tickprocessor sampling on 64-bit MacOS. This issue on codereview has been accidentally reused from an earlier issue by a process mistake.

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Review URL: http://codereview.chromium.org/151004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2640 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
whesse@chromium.org 2009-08-06 15:47:58 +00:00
parent 863582bad4
commit d3eeaf1757
1 changed files with 17 additions and 19 deletions
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36
src/platform-macos.cc
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@ -515,35 +515,31 @@ class Sampler::PlatformData : public Malloced {
thread_state_flavor_t flavor = x86_THREAD_STATE64;
x86_thread_state64_t state;
mach_msg_type_number_t count = x86_THREAD_STATE64_COUNT;
#if __DARWIN_UNIX03
#define REGISTER_FIELD(name) __r ## name
#else
#define REGISTER_FIELD(name) r ## name
#endif // __DARWIN_UNIX03
#elif V8_HOST_ARCH_IA32
thread_state_flavor_t flavor = i386_THREAD_STATE;
i386_thread_state_t state;
mach_msg_type_number_t count = i386_THREAD_STATE_COUNT;
#if __DARWIN_UNIX03
#define REGISTER_FIELD(name) __e ## name
#else
#define REGISTER_FIELD(name) e ## name
#endif // __DARWIN_UNIX03
#else
#error Unsupported Mac OS X host architecture.
#endif // V8_TARGET_ARCH_IA32
#endif // V8_HOST_ARCH
if (thread_get_state(profiled_thread_,
flavor,
reinterpret_cast<natural_t*>(&state),
&count) == KERN_SUCCESS) {
#if V8_HOST_ARCH_X64
UNIMPLEMENTED();
sample.pc = 0;
sample.sp = 0;
sample.fp = 0;
#elif V8_HOST_ARCH_IA32
#if __DARWIN_UNIX03
sample.pc = state.__eip;
sample.sp = state.__esp;
sample.fp = state.__ebp;
#else // !__DARWIN_UNIX03
sample.pc = state.eip;
sample.sp = state.esp;
sample.fp = state.ebp;
#endif // __DARWIN_UNIX03
#else
#error Unsupported Mac OS X host architecture.
#endif // V8_HOST_ARCH_IA32
sample.pc = state.REGISTER_FIELD(ip);
sample.sp = state.REGISTER_FIELD(sp);
sample.fp = state.REGISTER_FIELD(bp);
sampler_->SampleStack(&sample);
}
thread_resume(profiled_thread_);
@ -560,6 +556,8 @@ class Sampler::PlatformData : public Malloced {
}
};
#undef REGISTER_FIELD
// Entry point for sampler thread.
static void* SamplerEntry(void* arg) {