musl - musl - an implementation of the standard library for Linux-based systems

musl - an implementation of the standard library for Linux-based systems

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author	Rich Felker <dalias@aerifal.cx>	2018年09月05日 12:43:34 -0400
committer	Rich Felker <dalias@aerifal.cx>	2018年09月05日 14:05:14 -0400
commit	9b95fd0944e4206949e90633c3fed088202810ec (patch)
tree	4af9c66139abfef78854aca3200f836153727c23 /crt/crt1.c
parent	2de29bc994029b903a366b8a4a9f8c3c3ee2be90 (diff)
download	musl-9b95fd0944e4206949e90633c3fed088202810ec.tar.gz

define and use internal macros for hidden visibility, weak refs

this cleans up what had become widespread direct inline use of "GNU C" style attributes directly in the source, and lowers the barrier to increased use of hidden visibility, which will be useful to recovering some of the efficiency lost when the protected visibility hack was dropped in commit dc2f368e565c37728b0d620380b849c3a1ddd78f, especially on archs where the PLT ABI is costly.

Diffstat (limited to 'crt/crt1.c')

-rw-r--r--

crt/crt1.c

1 files changed, 3 insertions, 2 deletions

diff --git a/crt/crt1.c b/crt/crt1.c
index af02af94..7b12665f 100644
--- a/crt/crt1.c
+++ b/crt/crt1.c

@@ -1,12 +1,13 @@

#include <features.h>

+#include "libc.h"

#define START "_start"

#include "crt_arch.h"

int main();

-void _init() __attribute__((weak));

-void _fini() __attribute__((weak));

+weak void _init();

+weak void _fini();

_Noreturn int __libc_start_main(int (*)(), int, char **,

void (*)(), void(*)(), void(*)());

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