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