src/gdb ChangeLog defs.h top.c

[nsd at sourceware dot cygnus dot com]

CVSROOT:	/cvs/src
Module name:	src
Changes by:	nsd@sourceware.cygnus.com	00/02/23 16:04:03

Modified files:
	gdb            : ChangeLog defs.h top.c 

Log message:
	* top.c (SIGJMP_BUF, SIGSETJMP, SIGLONGJMP): Update comments.
	(error_return, quit_return): Merge into catch_return pointer.
	(return_to_top_level): Update comment.  Longjmp to *catch_errors,
	and communicate reason to catch_errors via setjmp return value.
	(catch_errors): Always catch both quit and error, and if a catch
	wasn't requested by caller, throw it to the next catch_error.
	Replace dual longjmp buffer memcpy with single pointer change.
	Add FIXME for possibly adding new interface to tell caller what
	event was caught.  Add extensive comments.
	* defs.h (enum return_reason): Reserve 0 for use as initial
	setjmp() return value.
	(RETURN_MASK): New public macro to generate RETURN_MASK_* from
	enum return_reason.
	(RETURN_MASK_QUIT, RETURN_MASK_ERROR): Define using RETURN_MASK.

Patches:
http://sourceware.cygnus.com/cgi-bin/cvsweb.cgi/src/gdb/ChangeLog.diff?cvsroot=src&r1=1.60&r2=1.61
http://sourceware.cygnus.com/cgi-bin/cvsweb.cgi/src/gdb/defs.h.diff?cvsroot=src&r1=1.3&r2=1.4
http://sourceware.cygnus.com/cgi-bin/cvsweb.cgi/src/gdb/top.c.diff?cvsroot=src&r1=1.3&r2=1.4