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Fix profiling on Android.

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Review URL: http://codereview.chromium.org/62102

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1685 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
erik.corry@gmail.com 2009-04-07 13:33:39 +00:00
parent 835b89b727
commit 59d3cf8403
1 changed files with 27 additions and 3 deletions
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30
src/platform-linux.cc
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@ -552,9 +552,34 @@ Semaphore* OS::CreateSemaphore(int count) {
static Sampler* active_sampler_ = NULL;
#if !defined(__GLIBC__) && (defined(__arm__) || defined(__thumb__))
// Android runs a fairly new Linux kernel, so signal info is there,
// but the C library doesn't have the structs defined.
struct sigcontext {
uint32_t trap_no;
uint32_t error_code;
uint32_t oldmask;
uint32_t gregs[16];
uint32_t arm_cpsr;
uint32_t fault_address;
};
typedef uint32_t __sigset_t;
typedef struct sigcontext mcontext_t;
typedef struct ucontext {
uint32_t uc_flags;
struct ucontext *uc_link;
stack_t uc_stack;
mcontext_t uc_mcontext;
__sigset_t uc_sigmask;
} ucontext_t;
enum ArmRegisters {R15 = 15, R13 = 13, R11 = 11};
#endif
static void ProfilerSignalHandler(int signal, siginfo_t* info, void* context) {
// Ucontext is a glibc extension - no profiling on Android at the moment.
#ifdef __GLIBC__
USE(info);
if (signal != SIGPROF) return;
if (active_sampler_ == NULL) return;
@ -581,7 +606,6 @@ static void ProfilerSignalHandler(int signal, siginfo_t* info, void* context) {
sample.state = Logger::state();
active_sampler_->Tick(&sample);
#endif
}