i386.md (stack_protect_set): Disable the pattern for Android since Android libc ...

2012-07-16 Sergey Melnikov <sergey.melnikov@intel.com>

        * config/i386/i386.md (stack_protect_set): Disable the pattern
        for Android since Android libc (bionic) does not provide random
        value for stack protection guard at gs:0x14. Guard value
        will be provided from external symbol (default implementation).
        (stack_protect_set_<mode>): Likewise.
        (stack_protect_test): Likewise.
        (stack_protect_test_<mode>): Likewise.

From-SVN: r189513

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 2fe9b02dcf2ed998bf764d5b06f60c9cb7714002..2decc3d7f13a804d72ac1aae148d1bf84dbd50aa 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,13 @@
+2012-07-16 Sergey Melnikov <sergey.melnikov@intel.com>
+
+       * config/i386/i386.md (stack_protect_set): Disable the pattern
+       for Android since Android libc (bionic) does not provide random
+       value for stack protection guard at gs:0x14. Guard value
+       will be provided from external symbol (default implementation).
+       (stack_protect_set_<mode>): Likewise.
+       (stack_protect_test): Likewise.
+       (stack_protect_test_<mode>): Likewise.
+
 2012-07-16  Hans-Peter Nilsson  <hp@axis.com>
 
        * config/cris/cris-protos.h (cris_legitimate_address_p): Declare.

diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 49a56863617a6bfe6c5a9096d5140a4feb37bf8e..a1c5b7912821cbd3fa8a9ac778c1b8bd460ce0d2 100644 (file)
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -17708,7 +17708,7 @@
 (define_expand "stack_protect_set"
   [(match_operand 0 "memory_operand")
    (match_operand 1 "memory_operand")]
-  ""
+  "!OPTION_BIONIC"
 {
   rtx (*insn)(rtx, rtx);
 
@@ -17733,7 +17733,7 @@
                    UNSPEC_SP_SET))
    (set (match_scratch:PTR 2 "=&r") (const_int 0))
    (clobber (reg:CC FLAGS_REG))]
-  ""
+  "!OPTION_BIONIC"
   "mov{<imodesuffix>}\t{%1, %2|%2, %1}\;mov{<imodesuffix>}\t{%2, %0|%0, %2}\;xor{l}\t%k2, %k2"
   [(set_attr "type" "multi")])
 
@@ -17751,7 +17751,7 @@
   [(match_operand 0 "memory_operand")
    (match_operand 1 "memory_operand")
    (match_operand 2)]
-  ""
+  "!OPTION_BIONIC"
 {
   rtx flags = gen_rtx_REG (CCZmode, FLAGS_REG);
 
@@ -17781,7 +17781,7 @@
                     (match_operand:PTR 2 "memory_operand" "m")]
                    UNSPEC_SP_TEST))
    (clobber (match_scratch:PTR 3 "=&r"))]
-  ""
+  "!OPTION_BIONIC"
   "mov{<imodesuffix>}\t{%1, %3|%3, %1}\;xor{<imodesuffix>}\t{%2, %3|%3, %2}"
   [(set_attr "type" "multi")])