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| author | Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org> | 2015-12-15 16:29:49 +0000 |
|---|---|---|
| committer | Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org> | 2015-12-15 16:29:49 +0000 |
| commit | 3098633485b4a511d1b67acd0c6c18f99b3eb24c (patch) | |
| tree | 86d62bf25ec8fa52d15d7ff94b2f1bdc24020ddd /gcc/final.c | |
| parent | 780656bd4edcc37fef1a2cf060c7870ce0938689 (diff) | |
| download | gcc-linaro/prolog-pad.tar.gz | |
Support for -fprolog-pad=Nlinaro/prolog-pad
Diffstat (limited to 'gcc/final.c')
| -rw-r--r-- | gcc/final.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/final.c b/gcc/final.c index 1edc446e3f1..862894f59fc 100644 --- a/gcc/final.c +++ b/gcc/final.c @@ -1765,6 +1765,22 @@ final_start_function (rtx_insn *first, FILE *file, high_block_linenum = high_function_linenum = last_linenum; + tree prolog_pad_attr + = lookup_attribute ("prolog_pad", TYPE_ATTRIBUTES (TREE_TYPE (current_function_decl))); + if (prolog_pad_attr) + { + tree prolog_pad_value = TREE_VALUE (TREE_VALUE (prolog_pad_attr)); + unsigned HOST_WIDE_INT pad_size = 0; + + if (tree_fits_uhwi_p (prolog_pad_value)) + pad_size = tree_to_uhwi (prolog_pad_value); + else + gcc_unreachable (); + + if (pad_size > 0) + targetm.asm_out.print_prolog_pad (file, pad_size, true); + } + if (flag_sanitize & SANITIZE_ADDRESS) asan_function_start (); |