From 9b52ab1c9a44b62236089ab0272801d049bc5b1e Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Mon, 21 Apr 2014 19:31:35 -0400 Subject: micro-optimize some startup code for size moving the call to __init_ssp from __init_security to __init_libc makes __init_security a leaf function, which allows the compiler to make it smaller. __init_libc is already non-leaf, and the additional call makes no difference to the amount of register spillage. in addition, it really made no sense for the call to __init_ssp to be buried inside __init_security rather than parallel with other init functions. --- src/env/__libc_start_main.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'src/env/__libc_start_main.c') diff --git a/src/env/__libc_start_main.c b/src/env/__libc_start_main.c index ac374922..539f72e5 100644 --- a/src/env/__libc_start_main.c +++ b/src/env/__libc_start_main.c @@ -11,6 +11,9 @@ extern void (*const __init_array_start)() __attribute__((weak)); extern void (*const __init_array_end)() __attribute__((weak)); #endif +static void dummy1(void *p) {} +weak_alias(dummy1, __init_ssp); + #define AUX_CNT 38 extern size_t __hwcap, __sysinfo; @@ -33,6 +36,7 @@ void __init_libc(char **envp, char *pn) } __init_tls(aux); + __init_ssp((void *)aux[AT_RANDOM]); __init_security(aux); } -- cgit v1.2.1