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| author | Kostya Serebryany <kcc@google.com> | 2013-09-12 09:08:13 +0000 |
|---|---|---|
| committer | Kostya Serebryany <kcc@google.com> | 2013-09-12 09:08:13 +0000 |
| commit | 79d98a851b08b560531fc0d7004231498b50e43f (patch) | |
| tree | 174f4d32d32526ca9803aaeee8bd82924d4a2e4b | |
| parent | 8952974e2930325237ccae42547810b5f5fd126b (diff) | |
| download | bcm5719-llvm-79d98a851b08b560531fc0d7004231498b50e43f.tar.gz bcm5719-llvm-79d98a851b08b560531fc0d7004231498b50e43f.zip | |
[asan] limit the size of the fake stack with a reasonable constant. This fixes a failure when the main thread's stack is considered unlimited (very large).
llvm-svn: 190596
| -rw-r--r-- | compiler-rt/lib/asan/asan_fake_stack.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/compiler-rt/lib/asan/asan_fake_stack.h b/compiler-rt/lib/asan/asan_fake_stack.h index b6dc23bb941..493e7e521d8 100644 --- a/compiler-rt/lib/asan/asan_fake_stack.h +++ b/compiler-rt/lib/asan/asan_fake_stack.h @@ -67,8 +67,12 @@ class FakeStack { // CTOR: create the FakeStack as a single mmap-ed object. static FakeStack *Create(uptr stack_size_log) { - if (stack_size_log < 15) - stack_size_log = 15; + static uptr kMinStackSizeLog = 16; + static uptr kMaxStackSizeLog = FIRST_32_SECOND_64(23, 26); + if (stack_size_log < kMinStackSizeLog) + stack_size_log = kMinStackSizeLog; + if (stack_size_log > kMaxStackSizeLog) + stack_size_log = kMaxStackSizeLog; FakeStack *res = reinterpret_cast<FakeStack *>( MmapOrDie(RequiredSize(stack_size_log), "FakeStack")); res->stack_size_log_ = stack_size_log; |
