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// RUN: %clang_hwasan -mllvm -hwasan-globals=0 -g %s -o %t
// RUN: %env_hwasan_opts=decorate_proc_maps=1 %run %t 2>&1 | FileCheck %s --check-prefix=A
// RUN: %env_hwasan_opts=decorate_proc_maps=1 %run %t 2>&1 | FileCheck %s --check-prefix=B
// A: rw-p {{.*}}hwasan threads]
// A-NEXT: ---p {{.*}}shadow gap]
// A-NEXT: rw-p {{.*}}low shadow]
// A-NEXT: ---p {{.*}}shadow gap]
// A-NEXT: rw-p {{.*}}high shadow]
// B-DAG: rw-p {{.*}}SizeClassAllocator: region info]
// B-DAG: rw-p {{.*}}LargeMmapAllocator]
// B-DAG: rw-p {{.*}}StackStore]
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
void CopyFdToFd(int in_fd, int out_fd) {
const size_t kBufSize = 0x10000;
static char buf[kBufSize];
while (1) {
ssize_t got = read(in_fd, buf, kBufSize);
if (got > 0) {
write(out_fd, buf, got);
} else if (got == 0) {
break;
} else if (errno != EAGAIN || errno != EWOULDBLOCK || errno != EINTR) {
fprintf(stderr, "error reading file, errno %d\n", errno);
abort();
}
}
}
void *ThreadFn(void *arg) {
(void)arg;
int fd = open("/proc/self/maps", O_RDONLY);
CopyFdToFd(fd, 2);
close(fd);
return NULL;
}
int main(void) {
pthread_t t;
void * volatile res = malloc(100);
void * volatile res2 = malloc(1000000);
pthread_create(&t, 0, ThreadFn, 0);
pthread_join(t, 0);
int ret_val = (int)(size_t)res;
free(res);
free(res2);
return ret_val;
}
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