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authorwilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4>2005-08-13 20:58:02 +0000
committerwilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4>2005-08-13 20:58:02 +0000
commitd206a0728f6c2bbfc467a39b40ad77f6ab16f4c8 (patch)
tree04ed87285c8746a3bdad05fbcc15ce5b870a5b54 /gcc/c-cppbuiltin.c
parent7a39ea1e6af354e0c17d4e2a88b6abbbd7c31163 (diff)
downloadgcc-d206a0728f6c2bbfc467a39b40ad77f6ab16f4c8.tar.gz
Document compatibility with earlier ProPolice implementation.
* c-cppbuiltin.c (c_cpp_builtins): Add comment for flag_stack_protect macros. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@103058 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/c-cppbuiltin.c')
-rw-r--r--gcc/c-cppbuiltin.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/c-cppbuiltin.c b/gcc/c-cppbuiltin.c
index 44c7a3797dd..9020e0b49f9 100644
--- a/gcc/c-cppbuiltin.c
+++ b/gcc/c-cppbuiltin.c
@@ -440,7 +440,9 @@ c_cpp_builtins (cpp_reader *pfile)
if (targetm.handle_pragma_extern_prefix)
cpp_define (pfile, "__PRAGMA_EXTERN_PREFIX");
- /* Make the choice of the stack protector runtime visible to source code. */
+ /* Make the choice of the stack protector runtime visible to source code.
+ The macro names and values here were chosen for compatibility with an
+ earlier implementation, i.e. ProPolice. */
if (flag_stack_protect == 2)
cpp_define (pfile, "__SSP_ALL__=2");
else if (flag_stack_protect == 1)