[PATCH 1/1] newlib/libc/include/setjmp.h: Add returns_twice attribute to setjmp()
Joel Sherrill <[email protected]>
| Newsgroups | gmane.comp.lib.newlib |
|---|---|
| Message-ID | <[email protected]> |
The setjmp() function needs this attribute to help GCC avoid false positives for the -Wclobbered warning. The -Wclobbered warning is part of -Wextra. --- newlib/libc/include/setjmp.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/newlib/libc/include/setjmp.h b/newlib/libc/include/setjmp.h index a2830b275..5c16321a4 100644 --- a/newlib/libc/include/setjmp.h +++ b/newlib/libc/include/setjmp.h @@ -17,7 +17,12 @@ void longjmp (jmp_buf __jmpb, int __retval) #else void longjmp (jmp_buf __jmpb, int __retval); #endif -int setjmp (jmp_buf __jmpb); + +#ifdef __GNUC__ +int setjmp (jmp_buf __jmpb) + __attribute__ ((returns_twice));; +#else +#endif _END_STD_C -- 2.47.3