diff options
| author | Corinna Vinschen <corinna@vinschen.de> | 2015-07-21 18:31:02 +0300 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2015-07-21 18:31:02 +0300 |
| commit | 7c96ab0b434ea7d1f998841f39a5a704b84a87d2 (patch) | |
| tree | 2006925253b9172b5066a3779e7a420499399880 /newlib | |
| parent | b723ec272e5a1e7be453e0b75ed6b71fc5871f3a (diff) | |
Cygwin: Implement siglongjmp and sigsetjmp functions.
* libc/include/machine/setjmp.h (siglongjmp): Declare as function on
Cygwin.
(sigsetjmp): Ditto.
(_longjmp): Mark as noreturn function on Cygwin.
* common.din (siglongjmp): Export.
(sigsetjmp): Export.
* gendef: Change formatting of some comments.
(sigsetjmp): Implement.
(siglongjmp): Implement.
(__setjmpex): x86_64 only: Drop entry point.
(setjmp): x86_64 only: Store tls stackptr in Frame now, store MXCSR
and FPUCW registers in Spare, as MSVCRT does.
(longjmp): x86_64 only: Restore tls stackptr from Frame now, restore
MXCSR and FPUCW registers from Spare.
* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
* new-features.xml (ov-new2.2): Document sigsetjmp, siglongjmp.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Diffstat (limited to 'newlib')
| -rw-r--r-- | newlib/ChangeLog | 7 | ||||
| -rw-r--r-- | newlib/libc/include/machine/setjmp.h | 11 |
2 files changed, 16 insertions, 2 deletions
diff --git a/newlib/ChangeLog b/newlib/ChangeLog index 4131b6cd1..27f7395e3 100644 --- a/newlib/ChangeLog +++ b/newlib/ChangeLog @@ -1,3 +1,10 @@ +2015-07-21 Corinna Vinschen <corinna@vinschen.de> + + * libc/include/machine/setjmp.h (siglongjmp): Declare as function on + Cygwin. + (sigsetjmp): Ditto. + (_longjmp): Mark as noreturn function on Cygwin. + 2015-07-15 Wilco Dijkstra <wdijkstr@arm.com> * libc/machine/aarch64/memset.S (memset): diff --git a/newlib/libc/include/machine/setjmp.h b/newlib/libc/include/machine/setjmp.h index ec6644a7f..b25684dd5 100644 --- a/newlib/libc/include/machine/setjmp.h +++ b/newlib/libc/include/machine/setjmp.h @@ -381,6 +381,13 @@ typedef int sigjmp_buf[_JBLEN+1+(sizeof (sigset_t)/sizeof (int))]; #define __SIGMASK_FUNC sigprocmask #endif +#ifdef __CYGWIN__ +/* Per POSIX, siglongjmp has to be implemented as function. Cygwin + provides functions for both, siglongjmp and sigsetjmp since 2.2.0. */ +extern void siglongjmp (sigjmp_buf, int) __attribute__ ((__noreturn__)); +extern int sigsetjmp (sigjmp_buf, int); +#endif + #if defined(__GNUC__) #define sigsetjmp(env, savemask) \ @@ -418,8 +425,8 @@ typedef int sigjmp_buf[_JBLEN+1+(sizeof (sigset_t)/sizeof (int))]; are equivalent to sigsetjmp/siglongjmp when not saving the signal mask. New applications should use sigsetjmp/siglongjmp instead. */ #ifdef __CYGWIN__ -extern void _longjmp(jmp_buf, int); -extern int _setjmp(jmp_buf); +extern void _longjmp (jmp_buf, int) __attribute__ ((__noreturn__)); +extern int _setjmp (jmp_buf); #else #define _setjmp(env) sigsetjmp ((env), 0) #define _longjmp(env, val) siglongjmp ((env), (val)) |