This is the mail archive of the
newlib@sources.redhat.com
mailing list for the newlib project.
[PATCH] Two cygwin-related changes
- To: newlib at sources dot redhat dot com
- Subject: [PATCH] Two cygwin-related changes
- From: Christopher Faylor <cgf at redhat dot com>
- Date: Mon, 13 Aug 2001 22:38:42 -0400
- Reply-To: newlib at sources dot redhat dot com
[reply-to set to newlib@sources.redhat.com]
I've checked in the below patch. It solves two problems.
The macro definitions for cygwin for sigsetjmp and siglongjmp were
slightly incorrect. The macro arguments were not properly protected
with parentheses. See the long "[RFC] sigsetjmp/siglongjmp on cygwin"
thread on gdb@sources.redhat.com for more details.
The other part of the patch declares sys_errlist and sys_nerr for
legacy applications. This will probably reduce the traffic in the
cygwin mailing list by 1 or 2%.
cgf
Mon Aug 13 22:26:01 2001 Christopher Faylor <cgf@cygnus.com>
* libc/include/machine/setjmp.h: Protect sigsetjmp/siglongjmp macro
arguments.
* libc/include/sys/errno.h: Declare sys_errlist and sys_nerr, under
Cygwin.
Index: libc/include/machine/setjmp.h
===================================================================
RCS file: /cvs/uberbaum/newlib/libc/include/machine/setjmp.h,v
retrieving revision 1.3
diff -p -r1.3 setjmp.h
*** setjmp.h 2001/03/08 21:39:31 1.3
--- setjmp.h 2001/08/14 02:34:25
*************** typedef int sigjmp_buf[_JBLEN+2];
*** 161,172 ****
#define _SAVEMASK _JBLEN
#define _SIGMASK (_JBLEN+1)
! #define sigsetjmp(env, savemask) (env[_SAVEMASK] = savemask,\
! sigprocmask (SIG_SETMASK, 0, (sigset_t *) &env[_SIGMASK]),\
setjmp (env))
! #define siglongjmp(env, val) (((env[_SAVEMASK])?\
! sigprocmask (SIG_SETMASK, (sigset_t *) &env[_SIGMASK], 0):0),\
longjmp (env, val))
#endif /* __CYGWIN__ or __rtems__ */
--- 161,176 ----
#define _SAVEMASK _JBLEN
#define _SIGMASK (_JBLEN+1)
! #ifdef __CYGWIN__
! # define _CYGWIN_WORKING_SIGSETJMP
! #endif
!
! #define sigsetjmp(env, savemask) ((env)[_SAVEMASK] = savemask,\
! sigprocmask (SIG_SETMASK, 0, (sigset_t *) ((env) + _SIGMASK)),\
setjmp (env))
! #define siglongjmp(env, val) ((((env)[_SAVEMASK])?\
! sigprocmask (SIG_SETMASK, (sigset_t *) ((env) + _SIGMASK), 0):0),\
longjmp (env, val))
#endif /* __CYGWIN__ or __rtems__ */
Index: libc/include/sys/errno.h
===================================================================
RCS file: /cvs/uberbaum/newlib/libc/include/sys/errno.h,v
retrieving revision 1.6
diff -p -r1.6 errno.h
*** errno.h 2001/04/12 21:17:27 1.6
--- errno.h 2001/08/14 02:34:25
*************** extern int *__errno _PARAMS ((void));
*** 17,22 ****
--- 17,26 ----
extern __IMPORT _CONST char * _CONST _sys_errlist[];
extern __IMPORT int _sys_nerr;
+ #ifdef __CYGWIN__
+ extern __IMPORT const char * const sys_errlist[];
+ extern __IMPORT int sys_nerr;
+ #endif
#define __errno_r(ptr) ((ptr)->_errno)