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| author | Josh Triplett <josh@joshtriplett.org> | 2014-04-04 01:48:27 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-04 03:21:05 +0400 |
| commit | 69369a7003735d0d8ef22097e27a55a8bad9557a (patch) | |
| tree | b7638899a8e81fc18a497791685f1b571d733896 /kernel/sys_ni.c | |
| parent | 8f6c5ffc8987f4f5b5a3e9d557d94bbf3a9bf216 (diff) | |
| download | linux-69369a7003735d0d8ef22097e27a55a8bad9557a.tar.xz | |
fs, kernel: permit disabling the uselib syscall
uselib hasn't been used since libc5; glibc does not use it. Support
turning it off.
When disabled, also omit the load_elf_library implementation from
binfmt_elf.c, which only uselib invokes.
bloat-o-meter:
add/remove: 0/4 grow/shrink: 0/1 up/down: 0/-785 (-785)
function old new delta
padzero 39 36 -3
uselib_flags 20 - -20
sys_uselib 168 - -168
SyS_uselib 168 - -168
load_elf_library 426 - -426
The new CONFIG_USELIB defaults to `y'.
Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/sys_ni.c')
| -rw-r--r-- | kernel/sys_ni.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c index 74395a95b7e9..bc8d1b74a6b9 100644 --- a/kernel/sys_ni.c +++ b/kernel/sys_ni.c @@ -152,6 +152,7 @@ cond_syscall(sys_process_vm_readv); cond_syscall(sys_process_vm_writev); cond_syscall(compat_sys_process_vm_readv); cond_syscall(compat_sys_process_vm_writev); +cond_syscall(sys_uselib); /* arch-specific weak syscall entries */ cond_syscall(sys_pciconfig_read); |