glibc/sysdeps/i386/jmp_buf.h

/* Define the machine-dependent type `jmp_buf'.  Intel 386 version.  */

#if	defined (__USE_MISC) || defined (_ASM)
#define	JB_BX	0
#define	JB_SI	1
#define	JB_DI	2
#define	JB_BP	3
#define	JB_SP	4
#define	JB_PC	5
#endif

#ifndef	_ASM
typedef int __jmp_buf[6];
#endif

/* Test if longjmp to JMPBUF would unwind the frame
   containing a local variable at ADDRESS.  */
#define _JMPBUF_UNWINDS(jmpbuf, address) \
  ((int) (address) < (jmpbuf)[JB_SP])
initial import 1995-02-18 01:27:10 +00:00			/* Define the machine-dependent type `jmp_buf'. Intel 386 version. */

Rewrote i386 setjmp in assembly. Thu Aug 31 13:23:35 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> * sysdeps/unix/i386/brk.S [PIC]: Set __curbrk through the GOT. Rewrote i386 setjmp code in assembly, so as to avoid fighting with the compiler for the register values. * sysdeps/i386/setjmp.S, sysdeps/i386/__longjmp.S: New files. * sysdeps/i386/setjmp.c, sysdeps/i386/__longjmp.c: Files removed. * sysdeps/i386/jmp_buf.h [! _ASM] (__jmp_buf): Define as array of ints. [__USE_MISC \|\| _ASM] (JB_*): New macros, for indices therein. (_JMPBUF_UNWINDS): Use JB_SP. 1995-08-31 17:33:01 +00:00			`#if defined (__USE_MISC) \|\| defined (_ASM)`
			`#define JB_BX 0`
			`#define JB_SI 1`
			`#define JB_DI 2`
			`#define JB_BP 3`
			`#define JB_SP 4`
			`#define JB_PC 5`
			`#endif`

			`#ifndef _ASM`
			`typedef int __jmp_buf[6];`
			`#endif`
Mon Mar 27 02:23:15 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> * posix/unistd.h [__USE_BSD] (ttyslot): Declare it. * posix/unistd.h [__USE_BSD] (L_SET, L_INCR, L_XTND): Define unless L_SET already defined. * misc/sys/file.h (L_SET, L_INCR, L_XTND): Don't define if L_SET already defined. Incorporated -lutil library from 4.4-Lite. * misc/Makefile (extra-libs, libutil-routines): New variables. * misc/login.c, misc/login_tty.c, misc/logout.c, misc/logwtmp.c, sysdeps/generic/pty.c: New files for -lutil incorporated from 4.4-Lite. Support simple, light-weight unwind-protect mechanism for longjmp. * setjmp/longjmp.c: Call _longjmp_unwind first thing. * sysdeps/mach/hurd/jmp-unwind.c: New file. * sysdeps/stub/jmp-unwind.c: New file. * sysdeps/i386/jmp_buf.h (_JMPBUF_UNWINDS): New macro. * sysdeps/mips/jmp_buf.h (_JMPBUF_UNWINDS): New macro. * setjmp/Makefile (routines): Add jmp-unwind. * hurd/hurd/userlink.h (struct hurd_userlink): Move `next' and `prevp' members into new substructure `resource'; add another such substructure `thread' and members `cleanup' (function ptr) and `cleanup_data' (generic ptr). (_hurd_userlink_link, _hurd_userlink_unlink): Insert/remove LINK into the `_hurd_self_sigstate ()->active_resources' list via the `thread' substructure. * hurd/hurd/port.h (_hurd_port_cleanup): Declare it. (_hurd_port_locked_get): Set LINK->cleanup to _hurd_port_cleanup and LINK->cleanup_data' to the port extracted. * hurd/hurd/signal.h (struct hurd_sigstate): New member `active_resources'. * hurd/port-cleanup.c: New file. * hurd/Makefile (routines): Add port-cleanup. * malloc/malloc.c: Include errno.h. Sat Mar 25 18:24:21 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> * locale/loadlocale.c (_nl_load_locale): Avoid */ inside comment. 1995-03-27 10:00:09 +00:00
			`/* Test if longjmp to JMPBUF would unwind the frame`
			`containing a local variable at ADDRESS. */`
			`#define _JMPBUF_UNWINDS(jmpbuf, address) \`
Rewrote i386 setjmp in assembly. Thu Aug 31 13:23:35 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> * sysdeps/unix/i386/brk.S [PIC]: Set __curbrk through the GOT. Rewrote i386 setjmp code in assembly, so as to avoid fighting with the compiler for the register values. * sysdeps/i386/setjmp.S, sysdeps/i386/__longjmp.S: New files. * sysdeps/i386/setjmp.c, sysdeps/i386/__longjmp.c: Files removed. * sysdeps/i386/jmp_buf.h [! _ASM] (__jmp_buf): Define as array of ints. [__USE_MISC \|\| _ASM] (JB_*): New macros, for indices therein. (_JMPBUF_UNWINDS): Use JB_SP. 1995-08-31 17:33:01 +00:00			`((int) (address) < (jmpbuf)[JB_SP])`