perf-read-vdso.c
510 Bytes
#include <stdio.h>
#include <string.h>
#define VDSO__MAP_NAME "[vdso]"
/*
* Include definition of find_vdso_map() also used in util/vdso.c for
* building perf.
*/
#include "util/find-vdso-map.c"
int main(void)
{
void *start, *end;
size_t size, written;
if (find_vdso_map(&start, &end))
return 1;
size = end - start;
while (size) {
written = fwrite(start, 1, size, stdout);
if (!written)
return 1;
start += written;
size -= written;
}
if (fflush(stdout))
return 1;
return 0;
}