mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-11-17 20:27:36 -05:00
6422bde9b4
* gnu/packages/patches/glibc-reinstate-prlimit64-fallback.patch: New file. * gnu/packages/base.scm (glibc/linux)[source]: Use it. * gnu/local.mk (dist_patch_DATA): Add it.
127 lines
3.9 KiB
Diff
127 lines
3.9 KiB
Diff
This patch reinstates fallback code when the 'prlimit64' system call is
|
|
missing by reverting the relevant part of this upstream commit:
|
|
|
|
commit 695d7d138eda449678a1650a8b8b58181033353f
|
|
Author: Joseph Myers <joseph@codesourcery.com>
|
|
Date: Tue May 9 14:05:09 2017 +0000
|
|
|
|
Assume prlimit64 is available.
|
|
|
|
The fallback code is useful on systems that lack 'prlimit64', such as the
|
|
2.6.32-on-steroid kernel found on RHEL 6:
|
|
|
|
<https://lists.gnu.org/archive/html/guix-devel/2018-03/msg00349.html>
|
|
|
|
diff --git a/sysdeps/unix/sysv/linux/getrlimit64.c b/sysdeps/unix/sysv/linux/getrlimit64.c
|
|
index 37c173286f..56af3c0646 100644
|
|
--- b/sysdeps/unix/sysv/linux/getrlimit64.c
|
|
+++ a/sysdeps/unix/sysv/linux/getrlimit64.c
|
|
@@ -35,7 +35,40 @@
|
|
int
|
|
__getrlimit64 (enum __rlimit_resource resource, struct rlimit64 *rlimits)
|
|
{
|
|
- return INLINE_SYSCALL_CALL (prlimit64, 0, resource, NULL, 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;
|
|
}
|
|
libc_hidden_def (__getrlimit64)
|
|
|
|
diff --git a/sysdeps/unix/sysv/linux/setrlimit.c b/sysdeps/unix/sysv/linux/setrlimit.c
|
|
index 01812ac355..8773c78236 100644
|
|
--- b/sysdeps/unix/sysv/linux/setrlimit.c
|
|
+++ a/sysdeps/unix/sysv/linux/setrlimit.c
|
|
@@ -34,6 +34,7 @@
|
|
int
|
|
__setrlimit (enum __rlimit_resource resource, const struct rlimit *rlim)
|
|
{
|
|
+# ifdef __NR_prlimit64
|
|
struct rlimit64 rlim64;
|
|
|
|
if (rlim->rlim_cur == RLIM_INFINITY)
|
|
@@ -45,7 +46,11 @@
|
|
else
|
|
rlim64.rlim_max = rlim->rlim_max;
|
|
|
|
- return INLINE_SYSCALL_CALL (prlimit64, 0, resource, &rlim64, NULL);
|
|
+ int res = INLINE_SYSCALL_CALL (prlimit64, 0, resource, &rlim64, NULL);
|
|
+ if (res == 0 || errno != ENOSYS)
|
|
+ return res;
|
|
+# endif
|
|
+ return INLINE_SYSCALL_CALL (setrlimit, resource, rlim);
|
|
}
|
|
|
|
# if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
|
|
diff --git a/sysdeps/unix/sysv/linux/setrlimit64.c b/sysdeps/unix/sysv/linux/setrlimit64.c
|
|
index 2dd129d99e..db1960fc18 100644
|
|
--- b/sysdeps/unix/sysv/linux/setrlimit64.c
|
|
+++ a/sysdeps/unix/sysv/linux/setrlimit64.c
|
|
@@ -36,7 +36,36 @@
|
|
int
|
|
__setrlimit64 (enum __rlimit_resource resource, const struct rlimit64 *rlimits)
|
|
{
|
|
- return INLINE_SYSCALL_CALL (prlimit64, 0, resource, rlimits, NULL);
|
|
+ int res;
|
|
+
|
|
+#ifdef __NR_prlimit64
|
|
+ res = INLINE_SYSCALL_CALL (prlimit64, 0, resource, rlimits, NULL);
|
|
+ if (res == 0 || errno != ENOSYS)
|
|
+ return res;
|
|
+#endif
|
|
+
|
|
+/* The fallback code only makes sense if the platform supports
|
|
+ __NR_setrlimit. */
|
|
+#ifdef __NR_setrlimit
|
|
+# if !__RLIM_T_MATCHES_RLIM64_T
|
|
+ struct rlimit rlimits32;
|
|
+
|
|
+ if (rlimits->rlim_cur >= RLIM_INFINITY)
|
|
+ rlimits32.rlim_cur = RLIM_INFINITY;
|
|
+ else
|
|
+ rlimits32.rlim_cur = rlimits->rlim_cur;
|
|
+ if (rlimits->rlim_max >= RLIM_INFINITY)
|
|
+ rlimits32.rlim_max = RLIM_INFINITY;
|
|
+ else
|
|
+ rlimits32.rlim_max = rlimits->rlim_max;
|
|
+# else
|
|
+# define rlimits32 (*rlimits)
|
|
+# endif
|
|
+
|
|
+ res = INLINE_SYSCALL_CALL (setrlimit, resource, &rlimits32);
|
|
+#endif
|
|
+
|
|
+ return res;
|
|
}
|
|
weak_alias (__setrlimit64, setrlimit64)
|
|
|