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authorSergei Trofimovich <slyfox@gentoo.org>2017-12-18 18:26:49 +0000
committerJoseph Myers <joseph@codesourcery.com>2017-12-18 18:26:49 +0000
commitc85c564d1442f0bc09a6c80fca025f004e12d044 (patch)
treebb21cd8379494ebf6114d2daa6e97f041e318bbc /sysdeps/mips/setjmp_aux.c
parent368b6c8da9f8ae453f5d70f8a62dbf3f1b6d5995 (diff)
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mips32: fix clobbering s0 in setjmp() [BZ #22624]
Similar to commit 1ab47db00dfbc0128119e3503d3ed640ffc4830b
("mips64: fix clobbering s0 in setjmp() [BZ #22624]")
as sysdeps/mips/setjmp_aux.c is almost an identical copy
of sysdeps/mips/mips64/setjmp_aux.c.

	[BZ #22624]
	* sysdeps/mips/setjmp_aux.c (__sigsetjmp_aux): Use
	inhibit_stack_protector.
Diffstat (limited to 'sysdeps/mips/setjmp_aux.c')
-rw-r--r--sysdeps/mips/setjmp_aux.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/sysdeps/mips/setjmp_aux.c b/sysdeps/mips/setjmp_aux.c
index 0052e0c4a4..176243bc51 100644
--- a/sysdeps/mips/setjmp_aux.c
+++ b/sysdeps/mips/setjmp_aux.c
@@ -23,7 +23,12 @@
    pointer.  We do things this way because it's difficult to reliably
    access them in C.  */
 
+/* Stack protection is disabled to avoid changing s0 (or any other
+   caller-save register) before storing it to environment.
+   See BZ #22624.  */
+
 int __attribute__ ((nomips16))
+inhibit_stack_protector
 __sigsetjmp_aux (jmp_buf env, int savemask, int sp, int fp)
 {
 #ifdef __mips_hard_float