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| author | Ulrich Drepper <drepper@redhat.com> | 2003-12-20 23:39:42 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-12-20 23:39:42 +0000 |
| commit | c0ecb80a43103964d30d8629ce45098fca307081 (patch) | |
| tree | 859db25ae2d571c91dabf49a70c8c2e1da535ebe /nptl/sysdeps/unix/sysv/linux/getpid.c | |
| parent | bbe35eb57144c081d10e76e35e52e9b400202b72 (diff) | |
| download | glibc-c0ecb80a43103964d30d8629ce45098fca307081.tar.gz glibc-c0ecb80a43103964d30d8629ce45098fca307081.tar.xz glibc-c0ecb80a43103964d30d8629ce45098fca307081.zip | |
Update.
2003-12-20 Ulrich Drepper <drepper@redhat.com> * elf/rtld.c (dl_main): Optimize order or subexpressions in if().
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/getpid.c')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/getpid.c | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/getpid.c b/nptl/sysdeps/unix/sysv/linux/getpid.c index 75decc1385..7efe3f2768 100644 --- a/nptl/sysdeps/unix/sysv/linux/getpid.c +++ b/nptl/sysdeps/unix/sysv/linux/getpid.c @@ -22,21 +22,31 @@ #include <sysdep.h> +#ifndef NOT_IN_libc +static pid_t really_getpid (pid_t oldval); +#endif + + pid_t __getpid (void) { - pid_t result; #ifndef NOT_IN_libc - result = THREAD_GETMEM (THREAD_SELF, pid); - if (__builtin_expect (result == 0, 0)) + pid_t result = THREAD_GETMEM (THREAD_SELF, pid); + if (__builtin_expect (result <= 0, 0)) + result = really_getpid (result); + return result; +} + +static pid_t +really_getpid (pid_t oldval) +{ #endif - { - INTERNAL_SYSCALL_DECL (err); - result = INTERNAL_SYSCALL (getpid, err, 0); + INTERNAL_SYSCALL_DECL (err); + pid_t result = INTERNAL_SYSCALL (getpid, err, 0); #ifndef NOT_IN_libc - THREAD_SETMEM (THREAD_SELF, pid, result); + if (oldval == 0) + THREAD_SETMEM (THREAD_SELF, pid, result); #endif - } return result; } libc_hidden_def (__getpid) |