tangyouling added a comment.
$ cat memory-leak.c
#include <stdlib.h>
void *p;
int main() {
p = malloc(7);
p = 0; // The memory is leaked here.
return 0;
}
$ ./build/bin/clang -fsanitize=address -g memory-leak.c ;
ASAN_OPTIONS=detect_leaks=1 ./a.out
=================================================================
==636379==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 7 byte(s) in 1 object(s) allocated from:
#0 0x555557bac158 in __interceptor_malloc
/home/loongson/llvm-work/llvm-project-test3/llvm-project1/compiler-rt/lib/asan/asan_malloc_linux.cpp:69:3
#1 0x555557beb03c in main
/home/loongson/llvm-work/llvm-project-test3/llvm-project1/memory-leak.c:4:7
#2 0x7ffff23b1678 (/usr/lib64/libc.so.6+0x25678)
SUMMARY: AddressSanitizer: 7 byte(s) leaked in 1 allocation(s).
$ ./build/bin/clang -fsanitize=leak -g memory-leak.c && ./a.out
=================================================================
==636372==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 7 byte(s) in 1 object(s) allocated from:
#0 0x555556a5a94c in __interceptor_malloc
/home/loongson/llvm-work/llvm-project-test3/llvm-project1/compiler-rt/lib/lsan/lsan_interceptors.cpp:75:3
#1 0x555556a5db0c in main
/home/loongson/llvm-work/llvm-project-test3/llvm-project1/memory-leak.c:4:7
#2 0x7ffff11c5678 (/usr/lib64/libc.so.6+0x25678)
SUMMARY: LeakSanitizer: 7 byte(s) leaked in 1 allocation(s).
$ make check-lsan
Testing Time: 38.19s
Unsupported : 13
Passed : 93
Expectedly Failed: 2
4 warning(s) in tests
Built target check-lsan
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D139686/new/
https://reviews.llvm.org/D139686
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