diff options
Diffstat (limited to 'libcxx/utils/google-benchmark/src/sysinfo.cc')
| -rw-r--r-- | libcxx/utils/google-benchmark/src/sysinfo.cc | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/libcxx/utils/google-benchmark/src/sysinfo.cc b/libcxx/utils/google-benchmark/src/sysinfo.cc index dd1e66306e1..7feb79e65f2 100644 --- a/libcxx/utils/google-benchmark/src/sysinfo.cc +++ b/libcxx/utils/google-benchmark/src/sysinfo.cc @@ -75,7 +75,9 @@ bool ReadIntFromFile(const char* file, long* value) { char line[1024]; char* err; memset(line, '\0', sizeof(line)); - CHECK(read(fd, line, sizeof(line) - 1)); + ssize_t read_err = read(fd, line, sizeof(line) - 1); + ((void)read_err); // prevent unused warning + CHECK(read_err >= 0); const long temp_value = strtol(line, &err, 10); if (line[0] != '\0' && (*err == '\n' || *err == '\0')) { *value = temp_value; @@ -295,8 +297,13 @@ void InitializeSystemInfo() { (size == sizeof(cpu_freq))) { cpuinfo_cycles_per_second = cpu_freq; } else { + #if defined BENCHMARK_OS_IOS + fprintf(stderr, "CPU frequency cannot be detected. \n"); + cpuinfo_cycles_per_second = 0; + #else fprintf(stderr, "%s\n", strerror(errno)); std::exit(EXIT_FAILURE); + #endif } #else // Generic cycles per second counter |
