846ec2c3cc
Fixes a CHECK-failure caused by glibc's pthread_getattr_np
implementation calling realloc. Essentially, Thread::GenerateRandomTag
gets called during Thread::Init and before Thread::InitRandomState:
HWAddressSanitizer: CHECK failed: hwasan_thread.cpp:134 "((random_buffer_)) != (0)" (0x0, 0x0) (tid=314)
#0 0x55845475a662 in __hwasan::CheckUnwind()
#1 0x558454778797 in __sanitizer::CheckFailed(char const*, int, char const*, unsigned long long, unsigned long long)
#2 0x558454766461 in __hwasan::Thread::GenerateRandomTag(unsigned long)
#3 0x55845475c58b in __hwasan::HwasanAllocate(__sanitizer::StackTrace*, unsigned long, unsigned long, bool)
#4 0x55845475c80a in __hwasan::hwasan_realloc(void*, unsigned long, __sanitizer::StackTrace*)
#5 0x5584547608aa in realloc
#6 0x7f6f3a3d8c2c in pthread_getattr_np
#7 0x5584547790dc in __sanitizer::GetThreadStackTopAndBottom(bool, unsigned long*, unsigned long*)
#8 0x558454779651 in __sanitizer::GetThreadStackAndTls(bool, unsigned long*, unsigned long*, unsigned long*, unsigned long*)
#9 0x558454761bca in __hwasan::Thread::InitStackAndTls(__hwasan::Thread::InitState const*)
#10 0x558454761e5c in __hwasan::HwasanThreadList::CreateCurrentThread(__hwasan::Thread::InitState const*)
#11 0x55845476184f in __hwasan_thread_enter
#12 0x558454760def in HwasanThreadStartFunc(void*)
#13 0x7f6f3a3d6fa2 in start_thread
#14 0x7f6f3a15b4ce in __clone
Also reverts 7a3fb71c3c, as it's now
unneeded.
Reviewed By: vitalybuka
Differential Revision: https://reviews.llvm.org/D113045
23 lines
471 B
C
23 lines
471 B
C
// Tests that our thread initialization hooks work properly with random_tags=1.
|
|
// RUN: %clang_hwasan %s -o %t
|
|
// RUN: %env_hwasan_opts=random_tags=1 %run %t
|
|
// REQUIRES: stable-runtime
|
|
|
|
#include <pthread.h>
|
|
|
|
#include <sanitizer/hwasan_interface.h>
|
|
|
|
volatile int state;
|
|
|
|
void *Increment(void *arg) {
|
|
++state;
|
|
return NULL;
|
|
}
|
|
|
|
int main() {
|
|
__hwasan_enable_allocator_tagging();
|
|
pthread_t t1;
|
|
pthread_create(&t1, NULL, Increment, NULL);
|
|
pthread_join(t1, NULL);
|
|
}
|