Author: pluto Date: Wed Aug 16 21:41:34 2006 GMT
Module: SOURCES Tag: GCC_4_1
---- Log message:
- tune stack protector ABI for linux kernel cmodel.
---- Files affected:
SOURCES:
gcc-pr28281.patch (NONE -> 1.1.2.1) (NEW)
---- Diffs:
================================================================
Index: SOURCES/gcc-pr28281.patch
diff -u /dev/null SOURCES/gcc-pr28281.patch:1.1.2.1
--- /dev/null Wed Aug 16 23:41:34 2006
+++ SOURCES/gcc-pr28281.patch Wed Aug 16 23:41:29 2006
@@ -0,0 +1,30 @@
+--- gcc-4_1-branch/gcc/config/i386/i386.md.orig 2006-08-16
22:50:41.692366000 +0200
++++ gcc-4_1-branch/gcc/config/i386/i386.md 2006-08-16 22:53:01.677114500
+0200
+@@ -20220,7 +20220,12 @@
+ (set (match_scratch:DI 2 "=&r") (const_int 0))
+ (clobber (reg:CC FLAGS_REG))]
+ "TARGET_64BIT"
+- "mov{q}\t{%%fs:%P1, %2|%2, QWORD PTR %%fs:%P1}\;mov{q}\t{%2, %0|%0,
%2}\;xor{l}\t%k2, %k2"
++ {
++ if (ix86_cmodel != CM_KERNEL)
++ return "mov{q}\t{%%fs:%P1, %2|%2, QWORD PTR %%fs:%P1}\;mov{q}\t{%2,
%0|%0, %2}\;xor{l}\t%k2, %k2";
++ else
++ return "mov{q}\t{%%gs:%P1, %2|%2, QWORD PTR %%gs:%P1}\;mov{q}\t{%2,
%0|%0, %2}\;xor{l}\t%k2, %k2";
++ }
+ [(set_attr "type" "multi")])
+
+ (define_expand "stack_protect_test"
+@@ -20288,7 +20293,12 @@
+ UNSPEC_SP_TLS_TEST))
+ (clobber (match_scratch:DI 3 "=r"))]
+ "TARGET_64BIT"
+- "mov{q}\t{%1, %3|%3, %1}\;xor{q}\t{%%fs:%P2, %3|%3, QWORD PTR %%fs:%P2}"
++ {
++ if (ix86_cmodel != CM_KERNEL)
++ return "mov{q}\t{%1, %3|%3, %1}\;xor{q}\t{%%fs:%P2, %3|%3, QWORD PTR
%%fs:%P2}";
++ else
++ return "mov{q}\t{%1, %3|%3, %1}\;xor{q}\t{%%gs:%P2, %3|%3, QWORD PTR
%%gs:%P2}";
++ }
+ [(set_attr "type" "multi")])
+
+ (include "sse.md")
================================================================
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