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Fix too small buffer problem found by ia64 port.

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* except.c (start_dynamic_handler): Compute size using
	STACK_SAVEAREA_MODE.

From-SVN: r29275
This commit is contained in:
Jim Wilson 1999-09-10 20:28:12 +00:00 committed by Jim Wilson
parent ffb9f2f152
commit 007598f98b
2 changed files with 13 additions and 3 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Fri Sep 10 13:21:21 1999 Jim Wilson <wilson@cygnus.com>
* except.c (start_dynamic_handler): Compute size using
STACK_SAVEAREA_MODE.
Fri Sep 10 16:01:23 1999 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> Fri Sep 10 16:01:23 1999 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* protoize.c: Remove various __STDC__ and POSIX hacks. Don't * protoize.c: Remove various __STDC__ and POSIX hacks. Don't

11
gcc/except.c
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@ -1273,9 +1273,14 @@ start_dynamic_handler ()
#ifndef DONT_USE_BUILTIN_SETJMP #ifndef DONT_USE_BUILTIN_SETJMP
/* The number of Pmode words for the setjmp buffer, when using the /* The number of Pmode words for the setjmp buffer, when using the
builtin setjmp/longjmp, see expand_builtin, case builtin setjmp/longjmp, see expand_builtin, case BUILT_IN_LONGJMP. */
BUILT_IN_LONGJMP. */ /* We use 2 words here before calling expand_builtin_setjmp.
size = 5; expand_builtin_setjmp uses 2 words, and then calls emit_stack_save.
emit_stack_save needs space of size STACK_SAVEAREA_MODE (SAVE_NONLOCAL).
Subtract one, because the assign_stack_local call below adds 1. */
size = (2 + 2 + (GET_MODE_SIZE (STACK_SAVEAREA_MODE (SAVE_NONLOCAL))
/ GET_MODE_SIZE (Pmode))
- 1);
#else #else
#ifdef JMP_BUF_SIZE #ifdef JMP_BUF_SIZE
size = JMP_BUF_SIZE; size = JMP_BUF_SIZE;