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| author | Noah Goldstein <goldstein.w.n@gmail.com> | 2021-09-21 18:31:49 -0500 |
|---|---|---|
| committer | Noah Goldstein <goldstein.w.n@gmail.com> | 2021-10-08 11:30:52 -0500 |
| commit | fc5bd179ef3a953dff8d1655bd530d0e230ffe71 (patch) | |
| tree | 8f474d47869c53c13f42e2eaf01a1d6d89137e5c | |
| parent | fa80ce6023c76dab34133d43f8c8f831a949fbf3 (diff) | |
| download | glibc-fc5bd179ef3a953dff8d1655bd530d0e230ffe71.tar.gz glibc-fc5bd179ef3a953dff8d1655bd530d0e230ffe71.tar.xz glibc-fc5bd179ef3a953dff8d1655bd530d0e230ffe71.zip | |
x86: Modify ENTRY in sysdep.h so that p2align can be specified
No bug. This change adds a new macro ENTRY_P2ALIGN which takes a second argument, log2 of the desired function alignment. The old ENTRY(name) macro is just ENTRY_P2ALIGN(name, 4) so this doesn't affect any existing functionality. Signed-off-by: Noah Goldstein <goldstein.w.n@gmail.com>
| -rw-r--r-- | sysdeps/x86/sysdep.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/sysdeps/x86/sysdep.h b/sysdeps/x86/sysdep.h index cac1d762fb..937180c1bd 100644 --- a/sysdeps/x86/sysdep.h +++ b/sysdeps/x86/sysdep.h @@ -78,15 +78,18 @@ enum cf_protection_level #define ASM_SIZE_DIRECTIVE(name) .size name,.-name; /* Define an entry point visible from C. */ -#define ENTRY(name) \ +#define ENTRY_P2ALIGN(name, alignment) \ .globl C_SYMBOL_NAME(name); \ .type C_SYMBOL_NAME(name),@function; \ - .align ALIGNARG(4); \ + .align ALIGNARG(alignment); \ C_LABEL(name) \ cfi_startproc; \ _CET_ENDBR; \ CALL_MCOUNT +/* Common entry 16 byte aligns. */ +#define ENTRY(name) ENTRY_P2ALIGN (name, 4) + #undef END #define END(name) \ cfi_endproc; \ |