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[asan] get rid of the last operator new call in asan rtl 

llvm-svn: 160347
This commit is contained in:
Kostya Serebryany 2012-07-17 07:20:13 +00:00
parent f579beca6d
commit 78713bc574
3 changed files with 18 additions and 6 deletions
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2
compiler-rt/lib/asan/asan_rtl.cc
View File

@ -48,7 +48,7 @@ void Die() {
} }
void CheckFailed(const char *file, int line, const char *cond, u64 v1, u64 v2) { void CheckFailed(const char *file, int line, const char *cond, u64 v1, u64 v2) {
AsanReport("AddressSanitizer CHECK failed: %s:%d \"%s\" (%zx, %zx)\n", AsanReport("AddressSanitizer CHECK failed: %s:%d \"%s\" (0x%zx, 0x%zx)\n",
file, line, cond, (uptr)v1, (uptr)v2); file, line, cond, (uptr)v1, (uptr)v2);
PRINT_CURRENT_STACK(); PRINT_CURRENT_STACK();
ShowStatsAndAbort(); ShowStatsAndAbort();

13
compiler-rt/lib/asan/asan_thread.cc
View File

@ -26,6 +26,9 @@ AsanThread::AsanThread(LinkerInitialized x)
malloc_storage_(x), malloc_storage_(x),
stats_(x) { } stats_(x) { }
static AsanLock mu_for_thread_summary(LINKER_INITIALIZED);
static LowLevelAllocator allocator_for_thread_summary(LINKER_INITIALIZED);
AsanThread *AsanThread::Create(u32 parent_tid, thread_callback_t start_routine, AsanThread *AsanThread::Create(u32 parent_tid, thread_callback_t start_routine,
void *arg, AsanStackTrace *stack) { void *arg, AsanStackTrace *stack) {
uptr size = RoundUpTo(sizeof(AsanThread), kPageSize); uptr size = RoundUpTo(sizeof(AsanThread), kPageSize);
@ -33,7 +36,15 @@ AsanThread *AsanThread::Create(u32 parent_tid, thread_callback_t start_routine,
thread->start_routine_ = start_routine; thread->start_routine_ = start_routine;
thread->arg_ = arg; thread->arg_ = arg;
AsanThreadSummary *summary = new AsanThreadSummary(parent_tid, stack); const uptr kSummaryAllocSize = 1024;
CHECK_LE(sizeof(AsanThreadSummary), kSummaryAllocSize);
AsanThreadSummary *summary;
{
ScopedLock lock(&mu_for_thread_summary);
summary = (AsanThreadSummary*)
allocator_for_thread_summary.Allocate(kSummaryAllocSize);
}
summary->Init(parent_tid, stack);
summary->set_thread(thread); summary->set_thread(thread);
thread->set_summary(summary); thread->set_summary(summary);

9
compiler-rt/lib/asan/asan_thread.h
View File

@ -18,6 +18,7 @@
#include "asan_internal.h" #include "asan_internal.h"
#include "asan_stack.h" #include "asan_stack.h"
#include "asan_stats.h" #include "asan_stats.h"
#include "sanitizer_common/sanitizer_libc.h"
namespace __asan { namespace __asan {
@ -30,12 +31,12 @@ class AsanThread;
class AsanThreadSummary { class AsanThreadSummary {
public: public:
explicit AsanThreadSummary(LinkerInitialized) { } // for T0. explicit AsanThreadSummary(LinkerInitialized) { } // for T0.
AsanThreadSummary(u32 parent_tid, AsanStackTrace *stack) void Init(u32 parent_tid, AsanStackTrace *stack) {
: parent_tid_(parent_tid), parent_tid_ = parent_tid;
announced_(false) { announced_ = false;
tid_ = kInvalidTid; tid_ = kInvalidTid;
if (stack) { if (stack) {
stack_ = *stack; internal_memcpy(&stack_, stack, sizeof(*stack));
} }
thread_ = 0; thread_ = 0;
} }