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| author | Joseph Myers <joseph@codesourcery.com> | 2017-05-09 14:05:09 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2017-05-09 14:05:09 +0000 |
| commit | 695d7d138eda449678a1650a8b8b58181033353f (patch) | |
| tree | 21808b08259cb3d73c1d3701adfbb98b0a4333a2 /sysdeps/unix/sysv/linux/getrlimit64.c | |
| parent | a972dc672c06845a024a0f98119dc3d9df0b9b77 (diff) | |
| download | glibc-695d7d138eda449678a1650a8b8b58181033353f.tar.gz glibc-695d7d138eda449678a1650a8b8b58181033353f.tar.xz glibc-695d7d138eda449678a1650a8b8b58181033353f.zip | |
Assume prlimit64 is available.
This patch makes sysdeps/unix/sysv/linux code assume the prlimit64 syscall is always available, given the minimum of a 3.2 kernel. __ASSUME_PRLIMIT64, which in fact was no longer used, is removed. Code conditional on __NR_prlimit64 being defined is made unconditional. Fallback code for the case where prlimit64 produces an ENOSYS error is removed, substantially simplifying some functions. Tested for x86_64 and x86. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_PRLIMIT64): Remove macro. * sysdeps/unix/sysv/linux/getrlimit64.c (__getrlimit64): Assume prlimit64 is always available and does not give an ENOSYS error. * sysdeps/unix/sysv/linux/prlimit.c [__NR_prlimit64]: Make code unconditional. [!__NR_prlimit64]: Remove conditional code. * sysdeps/unix/sysv/linux/setrlimit.c (__setrlimit): Assume prlimit64 is always available and does not give an ENOSYS error. * sysdeps/unix/sysv/linux/setrlimit64.c (__setrlimit64): Likewise.
Diffstat (limited to 'sysdeps/unix/sysv/linux/getrlimit64.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/getrlimit64.c | 35 |
1 files changed, 1 insertions, 34 deletions
diff --git a/sysdeps/unix/sysv/linux/getrlimit64.c b/sysdeps/unix/sysv/linux/getrlimit64.c index 37c173286f..56af3c0646 100644 --- a/sysdeps/unix/sysv/linux/getrlimit64.c +++ b/sysdeps/unix/sysv/linux/getrlimit64.c @@ -35,40 +35,7 @@ int __getrlimit64 (enum __rlimit_resource resource, struct rlimit64 *rlimits) { -#ifdef __NR_prlimit64 - int res = INLINE_SYSCALL_CALL (prlimit64, 0, resource, NULL, rlimits); - if (res == 0 || errno != ENOSYS) - return res; -#endif - -/* The fallback code only makes sense if the platform supports either - __NR_ugetrlimit and/or __NR_getrlimit. */ -#if defined (__NR_ugetrlimit) || defined (__NR_getrlimit) -# ifndef __NR_ugetrlimit -# define __NR_ugetrlimit __NR_getrlimit -# endif -# if __RLIM_T_MATCHES_RLIM64_T -# define rlimits32 (*rlimits) -# else - struct rlimit rlimits32; -# endif - - if (INLINE_SYSCALL_CALL (ugetrlimit, resource, &rlimits32) < 0) - return -1; - -# if !__RLIM_T_MATCHES_RLIM64_T - if (rlimits32.rlim_cur == RLIM_INFINITY) - rlimits->rlim_cur = RLIM64_INFINITY; - else - rlimits->rlim_cur = rlimits32.rlim_cur; - if (rlimits32.rlim_max == RLIM_INFINITY) - rlimits->rlim_max = RLIM64_INFINITY; - else - rlimits->rlim_max = rlimits32.rlim_max; -# endif /* !__RLIM_T_MATCHES_RLIM64_T */ -#endif /* defined (__NR_ugetrlimit) || defined (__NR_getrlimit) */ - - return 0; + return INLINE_SYSCALL_CALL (prlimit64, 0, resource, NULL, rlimits); } libc_hidden_def (__getrlimit64) |