diff options
Diffstat (limited to 'gcc/c-cppbuiltin.c')
| -rw-r--r-- | gcc/c-cppbuiltin.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/c-cppbuiltin.c b/gcc/c-cppbuiltin.c index 44c7a37..9020e0b 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) |