diff options
| author | Waldemar Brodkorb <wbx@openadk.org> | 2022-02-27 02:40:00 +0100 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2022-02-27 02:40:00 +0100 |
| commit | 118e211269fb4f685f2999157eb4aafc8fdd9423 (patch) | |
| tree | 82b1f32babe338ba7955c39de8de1ab82d24468d | |
| parent | ebe16ee2ae0e2e20e2950e5ceae179b98f1e4264 (diff) | |
guard prlimit, reported by Lance Fredrickson
| -rw-r--r-- | libc/sysdeps/linux/common/bits/kernel-features.h | 5 | ||||
| -rw-r--r-- | libc/sysdeps/linux/common/prlimit.c | 3 |
2 files changed, 8 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/bits/kernel-features.h b/libc/sysdeps/linux/common/bits/kernel-features.h index f1ebe0204..2f4f407bd 100644 --- a/libc/sysdeps/linux/common/bits/kernel-features.h +++ b/libc/sysdeps/linux/common/bits/kernel-features.h @@ -490,6 +490,11 @@ # define __ASSUME_FALLOCATE 1 #endif +/* prlimit64 is available in 2.6.36. */ +#if __LINUX_KERNEL_VERSION >= 0x020624 +# define __ASSUME_PRLIMIT64 1 +#endif + /* getcpu is a syscall for x86-64 since 3.1. */ #if defined __x86_64__ && __LINUX_KERNEL_VERSION >= 0x030100 # define __ASSUME_GETCPU_SYSCALL 1 diff --git a/libc/sysdeps/linux/common/prlimit.c b/libc/sysdeps/linux/common/prlimit.c index cdb64ba0d..f44dc1664 100644 --- a/libc/sysdeps/linux/common/prlimit.c +++ b/libc/sysdeps/linux/common/prlimit.c @@ -17,7 +17,9 @@ #include <sys/resource.h> #include <sysdep.h> +#include <bits/kernel-features.h> +#if defined __ASSUME_PRLIMIT64 int prlimit (__pid_t pid, enum __rlimit_resource resource, const struct rlimit *new_rlimit, struct rlimit *old_rlimit) @@ -25,3 +27,4 @@ prlimit (__pid_t pid, enum __rlimit_resource resource, return INLINE_SYSCALL (prlimit64, 4, pid, resource, new_rlimit, old_rlimit); } +#endif |