38 lines · cpp
1// Checks that the __sanitizer_on_print hook gets the exact same sanitizer2// report as what is printed to stderr.3//4// RUN: %clangxx %s -o %t5// RUN: %run %t %t-onprint.txt 2>%t-stderr.txt || true6// RUN: diff %t-onprint.txt %t-stderr.txt7//8// UNSUPPORTED: android9 10#include <cassert>11#include <cstdlib>12#include <fcntl.h>13#include <string.h>14#include <sys/stat.h>15#include <sys/types.h>16#include <unistd.h>17 18int f;19volatile void *buf;20volatile char sink;21 22__attribute__((disable_sanitizer_instrumentation)) extern "C" void23__sanitizer_on_print(const char *str) {24 write(f, str, strlen(str));25}26 27int main(int argc, char *argv[]) {28 assert(argc >= 2);29 f = open(argv[1], O_CREAT | O_TRUNC | O_WRONLY, 0666);30 31 // Use-after-free to trigger ASan/TSan reports.32 void *ptr = malloc(1);33 buf = ptr;34 free(ptr);35 sink = *static_cast<char *>(ptr);36 return 0;37}38