* bug#7186: Emacs segfaults during compile with -fstack-protector-all
@ 2010-10-10 18:54 William Throwe
2010-10-10 21:10 ` bug#7186: Patch William Throwe
2011-01-28 17:09 ` bug#7186: Emacs segfaults during compile with -fstack-protector-all Chong Yidong
0 siblings, 2 replies; 3+ messages in thread
From: William Throwe @ 2010-10-10 18:54 UTC (permalink / raw)
To: 7186
make[2]: Leaving directory
`/var/tmp/portage/app-editors/emacs-23.2/work/emacs-23.2/lisp'
`/bin/pwd`/temacs --batch --load loadup bootstrap
make[1]: *** [bootstrap-emacs] Segmentation fault
make[1]: Leaving directory
`/var/tmp/portage/app-editors/emacs-23.2/work/emacs-23.2/src'
This is emacs 23.2 on Linux (Gentoo) x86 with gcc 4.4.3
A backtrace and other info can be found at
https://bugs.gentoo.org/show_bug.cgi?id=294479
(in particular see comment 4)
^ permalink raw reply [flat|nested] 3+ messages in thread
* bug#7186: Patch
2010-10-10 18:54 bug#7186: Emacs segfaults during compile with -fstack-protector-all William Throwe
@ 2010-10-10 21:10 ` William Throwe
2011-01-28 17:09 ` bug#7186: Emacs segfaults during compile with -fstack-protector-all Chong Yidong
1 sibling, 0 replies; 3+ messages in thread
From: William Throwe @ 2010-10-10 21:10 UTC (permalink / raw)
To: 7186
SSP can reorder function arguments, so the function args can't be
treated as an array if it is enabled. Simple patch fixing the problem
follows.
*** emacs-23.2/src/m/intel386.h Sat Apr 3 18:26:07 2010
--- emacs-23.2.patch/src/m/intel386.h Sun Oct 10 16:36:31 2010
***************
*** 103,107 ****
--- 103,111 ----
#define SEGMENT_MASK ((SEGMENT_SIZE)-1)
#endif
+ #ifdef __SSP_ALL__
+ #define NO_ARG_ARRAY
+ #endif
+
/* arch-tag: 746338f0-cb7b-4f49-a98c-cb50817cf2ec
(do not change this comment) */
^ permalink raw reply [flat|nested] 3+ messages in thread
* bug#7186: Emacs segfaults during compile with -fstack-protector-all
2010-10-10 18:54 bug#7186: Emacs segfaults during compile with -fstack-protector-all William Throwe
2010-10-10 21:10 ` bug#7186: Patch William Throwe
@ 2011-01-28 17:09 ` Chong Yidong
1 sibling, 0 replies; 3+ messages in thread
From: Chong Yidong @ 2011-01-28 17:09 UTC (permalink / raw)
To: William Throwe; +Cc: 7186
I've committed a patch to the branch that turns on NO_ARG_ARRAY
unconditionally. Thanks.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2010-10-10 18:54 bug#7186: Emacs segfaults during compile with -fstack-protector-all William Throwe
2010-10-10 21:10 ` bug#7186: Patch William Throwe
2011-01-28 17:09 ` bug#7186: Emacs segfaults during compile with -fstack-protector-all Chong Yidong
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