diff options
Diffstat (limited to 'csu/libc-start.c')
| -rw-r--r-- | csu/libc-start.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/csu/libc-start.c b/csu/libc-start.c index 4005caf84a..2d4d2ed1f9 100644 --- a/csu/libc-start.c +++ b/csu/libc-start.c @@ -21,6 +21,7 @@ #include <unistd.h> #include <ldsodefs.h> #include <exit-thread.h> +#include <libc-diag.h> #include <libc-internal.h> #include <elf/libc-early-init.h> #include <stdbool.h> @@ -298,7 +299,16 @@ LIBC_START_MAIN (int (*main) (int, char **, char ** MAIN_AUXVEC_DECL), struct pthread_unwind_buf unwind_buf; int not_first_call; + DIAG_PUSH_NEEDS_COMMENT; +#if __GNUC_PREREQ (7, 0) + /* This call results in a -Wstringop-overflow warning because struct + pthread_unwind_buf is smaller than jmp_buf. setjmp and longjmp + do not use anything beyond the common prefix (they never access + the saved signal mask), so that is a false positive. */ + DIAG_IGNORE_NEEDS_COMMENT (11, "-Wstringop-overflow="); +#endif not_first_call = setjmp ((struct __jmp_buf_tag *) unwind_buf.cancel_jmp_buf); + DIAG_POP_NEEDS_COMMENT; if (__glibc_likely (! not_first_call)) { struct pthread *self = THREAD_SELF; |