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gcc: add patch from gcc-4.9-branch that fixes gcc bug 61801.

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Without this patch, gcc-4.9.1 miscompiles glibc-2.20 setxid NTPL code,
resulting in setgid() returning ENOSYS.
This commit is contained in:
Juan RP 2014-09-08 18:07:07 +02:00
parent 4fa6ce5888
commit 10c550bfab
2 changed files with 16 additions and 3 deletions
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14
srcpkgs/gcc/patches/gcc-bug-61801.patch Normal file
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@ -0,0 +1,14 @@
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61801
--- gcc/sched-deps.c 2014/04/11 12:49:40 209304
+++ gcc/sched-deps.c 2014/07/17 07:48:49 212739
@@ -2750,7 +2750,8 @@
Consider for instance a volatile asm that changes the fpu rounding
mode. An insn should not be moved across this even if it only uses
pseudo-regs because it might give an incorrectly rounded result. */
- if (code != ASM_OPERANDS || MEM_VOLATILE_P (x))
+ if ((code != ASM_OPERANDS || MEM_VOLATILE_P (x))
+ && !DEBUG_INSN_P (insn))
reg_pending_barrier = TRUE_BARRIER;
/* For all ASM_OPERANDS, we must traverse the vector of input operands.