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[hwasan] report failing thread for invalid free. 

Reviewed By: hctim

Differential Revision: https://reviews.llvm.org/D107270
This commit is contained in:
Florian Mayer 2021-08-02 13:49:29 +01:00
parent d3a0a65bf0
commit 150395c2bc
2 changed files with 9 additions and 3 deletions
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10
compiler-rt/lib/hwasan/hwasan_report.cpp
View File

@ -560,8 +560,14 @@ void ReportInvalidFree(StackTrace *stack, uptr tagged_addr) {
Printf("%s", d.Error());
uptr pc = stack->size ? stack->trace[0] : 0;
const char *bug_type = "invalid-free";
Report("ERROR: %s: %s on address %p at pc %p\n", SanitizerToolName, bug_type,
untagged_addr, pc);
const Thread *thread = GetCurrentThread();
if (thread) {
Report("ERROR: %s: %s on address %p at pc %p on thread T%zd\n",
SanitizerToolName, bug_type, untagged_addr, pc, thread->unique_id());
} else {
Report("ERROR: %s: %s on address %p at pc %p on unknown thread\n",
SanitizerToolName, bug_type, untagged_addr, pc);
}
Printf("%s", d.Access());
Printf("tags: %02x/%02x (ptr/mem)\n", ptr_tag, mem_tag);
Printf("%s", d.Default());

2
compiler-rt/test/hwasan/TestCases/double-free.c
View File

@ -11,7 +11,7 @@ int main() {
char * volatile x = (char*)malloc(40);
free(x);
free(x);
// CHECK: ERROR: HWAddressSanitizer: invalid-free on address
// CHECK: ERROR: HWAddressSanitizer: invalid-free on address {{.*}} at pc {{.*}} on thread T{{[0-9]+}}
// CHECK: tags: [[PTR_TAG:..]]/[[MEM_TAG:..]] (ptr/mem)
// CHECK: freed by thread {{.*}} here:
// CHECK: previously allocated here: