diff options
Diffstat (limited to 'executor/common_linux.h')
| -rw-r--r-- | executor/common_linux.h | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/executor/common_linux.h b/executor/common_linux.h index 5888b65cf..b56453510 100644 --- a/executor/common_linux.h +++ b/executor/common_linux.h @@ -2784,9 +2784,33 @@ static void setup_binfmt_misc() #endif #if SYZ_EXECUTOR || SYZ_ENABLE_KCSAN +#define KCSAN_DEBUGFS_FILE "/sys/kernel/debug/kcsan" + static void setup_kcsan() { - if (!write_file("/sys/kernel/debug/kcsan", "on")) + if (!write_file(KCSAN_DEBUGFS_FILE, "on")) fail("failed to enable KCSAN"); } + +#if SYZ_EXECUTOR // currently only used by executor +static void setup_kcsan_filterlist(char** frames, int nframes, bool blacklist) +{ + int fd = open(KCSAN_DEBUGFS_FILE, O_WRONLY); + if (fd == -1) + fail("failed to open(\"%s\")", KCSAN_DEBUGFS_FILE); + + const char* const filtertype = blacklist ? "blacklist" : "whitelist"; + printf("adding functions to KCSAN %s: ", filtertype); + dprintf(fd, "%s\n", filtertype); + for (int i = 0; i < nframes; ++i) { + printf("'%s' ", frames[i]); + dprintf(fd, "!%s\n", frames[i]); + } + printf("\n"); + + close(fd); +} + +#define SYZ_HAVE_KCSAN 1 +#endif #endif |