diff options
| -rw-r--r-- | src/bfstd.c | 15 | ||||
| -rw-r--r-- | src/bfstd.h | 5 | ||||
| -rw-r--r-- | src/ctx.c | 3 | ||||
| -rw-r--r-- | src/exec.c | 4 |
4 files changed, 24 insertions, 3 deletions
diff --git a/src/bfstd.c b/src/bfstd.c index 0ac3a72..7680f17 100644 --- a/src/bfstd.c +++ b/src/bfstd.c @@ -671,6 +671,21 @@ int xstrtofflags(const char **str, unsigned long long *set, unsigned long long * #endif } +long xsysconf(int name) { +#if __FreeBSD__ && SANITIZE_MEMORY + // Work around https://github.com/llvm/llvm-project/issues/88163 + __msan_scoped_disable_interceptor_checks(); +#endif + + long ret = sysconf(name); + +#if __FreeBSD__ && SANITIZE_MEMORY + __msan_scoped_enable_interceptor_checks(); +#endif + + return ret; +} + size_t asciilen(const char *str) { return asciinlen(str, strlen(str)); } diff --git a/src/bfstd.h b/src/bfstd.h index f91e380..d06bbd9 100644 --- a/src/bfstd.h +++ b/src/bfstd.h @@ -410,6 +410,11 @@ char *xconfstr(int name); */ int xstrtofflags(const char **str, unsigned long long *set, unsigned long long *clear); +/** + * Wrapper for sysconf() that works around an MSan bug. + */ +long xsysconf(int name); + #include <wchar.h> /** @@ -3,6 +3,7 @@ #include "ctx.h" #include "alloc.h" +#include "bfstd.h" #include "color.h" #include "diag.h" #include "expr.h" @@ -22,7 +23,7 @@ /** Get the initial value for ctx->threads (-j). */ static int bfs_nproc(void) { - long nproc = sysconf(_SC_NPROCESSORS_ONLN); + long nproc = xsysconf(_SC_NPROCESSORS_ONLN); if (nproc < 1) { nproc = 1; @@ -56,7 +56,7 @@ static size_t bfs_exec_arg_size(const char *arg) { /** Determine the maximum argv size. */ static size_t bfs_exec_arg_max(const struct bfs_exec *execbuf) { - long arg_max = sysconf(_SC_ARG_MAX); + long arg_max = xsysconf(_SC_ARG_MAX); bfs_exec_debug(execbuf, "ARG_MAX: %ld according to sysconf()\n", arg_max); if (arg_max < 0) { arg_max = BFS_EXEC_ARG_MAX; @@ -82,7 +82,7 @@ static size_t bfs_exec_arg_max(const struct bfs_exec *execbuf) { // Assume arguments are counted with the granularity of a single page, // so allow a one page cushion to account for rounding up - long page_size = sysconf(_SC_PAGESIZE); + long page_size = xsysconf(_SC_PAGESIZE); if (page_size < 4096) { page_size = 4096; } |