path: root/src/env/__libc_start_main.c
diff options
authorRich Felker <>2014-04-21 19:31:35 -0400
committerRich Felker <>2014-04-21 19:31:35 -0400
commit9b52ab1c9a44b62236089ab0272801d049bc5b1e (patch)
treee84e7d109e733abc567c18e96f0d96ddeb73ae80 /src/env/__libc_start_main.c
parent5c4f11d995cf178b3146cde0734d6988c145f243 (diff)
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.
Diffstat (limited to 'src/env/__libc_start_main.c')
1 files changed, 4 insertions, 0 deletions
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));
+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_ssp((void *)aux[AT_RANDOM]);