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[asan] dump coverage even if asan has reported an error 

llvm-svn: 195959
This commit is contained in:
Kostya Serebryany 2013-11-29 14:49:32 +00:00
parent 5774faf5b0
commit dc58090213
2 changed files with 9 additions and 0 deletions
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2
compiler-rt/lib/asan/asan_rtl.cc
View File

@ -51,6 +51,8 @@ static void AsanDie() {
UnmapOrDie((void*)kLowShadowBeg, kHighShadowEnd - kLowShadowBeg);
}
}
if (flags()->coverage)
__sanitizer_cov_dump();
if (death_callback)
death_callback();
if (flags()->abort_on_error)

7
compiler-rt/lib/asan/lit_tests/TestCases/Linux/coverage.cc
View File

@ -5,6 +5,7 @@
// RUN: %t foo 2>&1 | FileCheck %s --check-prefix=CHECK-foo
// RUN: %t bar 2>&1 | FileCheck %s --check-prefix=CHECK-bar
// RUN: %t foo bar 2>&1 | FileCheck %s --check-prefix=CHECK-foo-bar
// RUN: not %t foo bar 1 2 2>&1 | FileCheck %s --check-prefix=CHECK-report
#include <stdio.h>
#include <string.h>
@ -17,6 +18,8 @@ __attribute__((noinline))
void foo() { printf("foo\n"); }
extern void bar();
int G[4];
int main(int argc, char **argv) {
fprintf(stderr, "PID: %d\n", getpid());
for (int i = 1; i < argc; i++) {
@ -25,6 +28,7 @@ int main(int argc, char **argv) {
if (!strcmp(argv[i], "bar"))
bar();
}
return G[argc]; // Buffer overflow if argc >= 4.
}
#endif
@ -43,3 +47,6 @@ int main(int argc, char **argv) {
// CHECK-foo-bar: PID: [[PID:[0-9]+]]
// CHECK-foo-bar: [[PID]].sancov: 2 PCs written
// CHECK-foo-bar: so.[[PID]].sancov: 1 PCs written
//
// CHECK-report: AddressSanitizer: global-buffer-overflow
// CHECK-report: PCs written