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Diffstat (limited to 'gcc/config/i386/i386.h')
| -rw-r--r-- | gcc/config/i386/i386.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h index 408ea2b..e145cae 100644 --- a/gcc/config/i386/i386.h +++ b/gcc/config/i386/i386.h @@ -640,6 +640,13 @@ extern int ix86_arch; aligned; the compiler cannot rely on having this alignment. */ #define PREFERRED_STACK_BOUNDARY ix86_preferred_stack_boundary +/* As of July 2001, many runtimes to not align the stack properly when + entering main. This causes expand_main_function to forcably align + the stack, which results in aligned frames for functions called from + main, though it does nothing for the alignment of main itself. */ +#define FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN \ + (ix86_preferred_stack_boundary > STACK_BOUNDARY) + /* Allocation boundary for the code of a function. */ #define FUNCTION_BOUNDARY 16 |