}
uptr GetRSS() {
- uptr mem[7] = {};
- __sanitizer::GetMemoryProfile(FillProfileCallback, mem, 7);
- return mem[6];
+ uptr fd = OpenFile("/proc/self/statm", false);
+ if ((sptr)fd < 0)
+ return 0;
+ char buf[64];
+ uptr len = internal_read(fd, buf, sizeof(buf) - 1);
+ internal_close(fd);
+ if ((sptr)len <= 0)
+ return 0;
+ buf[len] = 0;
+ // The format of the file is:
+ // 1084 89 69 11 0 79 0
+ // We need the second number which is RSS in 4K units.
+ char *pos = buf;
+ // Skip the first number.
+ while (*pos >= '0' && *pos <= '9')
+ pos++;
+ // Skip whitespaces.
+ while (!(*pos >= '0' && *pos <= '9') && *pos != 0)
+ pos++;
+ // Read the number.
+ uptr rss = 0;
+ while (*pos >= '0' && *pos <= '9')
+ rss = rss * 10 + *pos++ - '0';
+ return rss * 4096;
}
#if SANITIZER_LINUX