| // Tests __hwasan_print_memory_usage through /proc/$PID/maps. |
| // RUN: %clang_hwasan %s -o %t && %env_hwasan_opts=export_memory_stats=1 %run %t 2>&1 | FileCheck %s |
| // REQUIRES: android |
| |
| #include <sys/types.h> |
| #include <unistd.h> |
| #include <stdlib.h> |
| #include <stdio.h> |
| |
| // The function needs to be unsanitized in order for &cmd to be untagged. This |
| // address is passed to system() and then to execve() syscall. The tests need to |
| // run on unpatched linux kernel, which at this time does not accept tagged |
| // pointers in system call arguments (but there is hope: see |
| // https://lore.kernel.org/patchwork/cover/979328). |
| __attribute__((no_sanitize("hwaddress"))) |
| int main() { |
| char cmd[1024]; |
| snprintf(cmd, sizeof(cmd), "cat /proc/%d/maps", getpid()); |
| system(cmd); |
| // CHECK: HWASAN pid: [[PID:[0-9]*]] rss: {{.*}} threads: 1 stacks: [[STACKS:[0-9]*]] thr_aux: {{.*}} stack_depot: {{.*}} uniq_stacks: [[UNIQ_STACKS:[0-9]*]] heap: [[HEAP:[0-9]*]] |
| } |