This patch consolidates all Linux setrlimit and getrlimit on the default
sysdeps/unix/sysv/linux/{set,get}rlimit{64}.c. It contains two exceptions:
1. mips32 and mips64n32 which requires a versioned symbol for GLIBC 2.19
and higher due a broken RLIM64_INFINITY constant.
2. sparc32 does not define a compat symbol for getrlimit64 for old 2GB
limit. I am not sure if it is required, but a RLIM_INFINITY fix [1]
change its definition without adding a compat symbol. This patch does
not aim to address this possible issue, it follow current symbol
export.
The default implementation uses prlimit64 for 64 bit rlim_t ({set,get}rlimit64)
and if it fails with ENOSYS it fall back to {get,set}rlimit syscall. This
code path is only used on kernel older than 2.6.36 (basically now only x86)
and I avoid to user __ASSUME_PRLIMTI64 to simplify the implementation. Once
x86 moves to be on par with other architectures regarding minimum kernel
supported we can get rid of using old syscalls and default path.
A new type size define is added, __RLIM_T_MATCHES_RLIM64_T, where is set as
default for 64 bits ports. This allows the default implementation to avoid
{get,set}rlimit building and alias {get,set}rlimit64 to {get,set}rlimit.
Checked on x86_64, i386, armhf, aarch64, and powerpc64le. I also did a
sanity build plus check-abi on all other supported architectures.
[1] Commit
9c96ff23858b0759e12ad69e3c4599931c90bee8
Adhemerval Zanella <adhemerval.zanella@linaro.org>
Yury Norov <ynorov@caviumnetworks.com>
* bits/typesizes.h (__RLIM_T_MATCHES_RLIM64_T): define.
* sysdeps/unix/sysv/linux/alpha/bits/typesizes.h
(__RLIM_T_MATCHES_RLIM64_T): Likewise.
* sysdeps/unix/sysv/linux/generic/bits/typesizes.h
(__RLIM_T_MATCHES_RLIM64_T): Likewise.
* sysdeps/unix/sysv/linux/s390/bits/typesizes.h [__s390x__]
(__RLIM_T_MATCHES_RLIM64_T): Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/typesizes.h
[__arch64__ || __sparcv9] (__RLIM_T_MATCHES_RLIM64_T): Likewise.
* sysdeps/unix/sysv/linux/x86/bits/typesizes.h [__86_64__]
(__RLIM_T_MATCHES_RLIM64_T): Likewise.
* sysdeps/unix/sysv/linux/arm/Makefile [$(subdir) = resource]
(sysdep_routines): Remove oldgetrlimit64.
* sysdeps/unix/sysv/linux/i386/Makefile [$(subdir) = resource]
(sysdep_routines): Likewise.
* sysdeps/unix/sysv/linux/m68k/Makefile [$(subdir) = resource]
(sysdep_routines): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/Makefile
[$(subdir) = resource] (sysdep_routines): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/Makefile
[$(subdir) = resource] (sysdep_routines): Likewise.
* sysdeps/unix/sysv/linux/arm/getrlimit64.c: Remove file.
* sysdeps/unix/sysv/linux/arm/oldgetrlimit64.c: Likewise.
* sysdeps/unix/sysv/linux/hppa/getrlimit64.c: Likewise.
* sysdeps/unix/sysv/linux/i386/getrlimit64.c: Likewise.
* sysdeps/unix/sysv/linux/i386/oldgetrlimit64.c: Likewise.
* sysdeps/unix/sysv/linux/m68k/getrlimit64.c: Likewise.
* sysdeps/unix/sysv/linux/m68k/oldgetrlimit64.c: Likewise.
* sysdeps/unix/sysv/linux/powerpc/getrlimit64.c: Likewise.
* sysdeps/unix/sysv/linux/powerpc/oldgetrlimit64.c: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/getrlimit64.c: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/oldgetrlimit64.c: Likewise.
* sysdeps/unix/sysv/linux/sh/getrlimit64.c: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/getrlimit64.c: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/setrlimit64.c: Likewise.
* sysdeps/sysv/linux/generic/wordsize-32/syscalls.list: Remove
setrlimit and getrlimit.
* sysdeps/unix/sysv/linux/hppa/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/i386/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/m68k/m680x0/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/getrlimit.c: New file.
* sysdeps/unix/sysv/linux/sparc/getrlimit64.c: Likewise.
* sysdeps/unix/sysv/linux/setrlimit.c: Likewise.
* sysdeps/unix/sysv/linux/getrlimit64.c (__getrlimit64): Handle
__RLIM_T_MATCHES_RLIM64_T and add alias if defined.
(__old_getrlimit64): Add compatibility symbol.
* sysdeps/unix/sysv/linux/setrlimit64.c (__setrlimit): Likewise.
+2016-11-17 Adhemerval Zanella <adhemerval.zanella@linaro.org>
+ Yury Norov <ynorov@caviumnetworks.com>
+
+ * bits/typesizes.h (__RLIM_T_MATCHES_RLIM64_T): define.
+ * sysdeps/unix/sysv/linux/alpha/bits/typesizes.h
+ (__RLIM_T_MATCHES_RLIM64_T): Likewise.
+ * sysdeps/unix/sysv/linux/generic/bits/typesizes.h
+ (__RLIM_T_MATCHES_RLIM64_T): Likewise.
+ * sysdeps/unix/sysv/linux/s390/bits/typesizes.h [__s390x__]
+ (__RLIM_T_MATCHES_RLIM64_T): Likewise.
+ * sysdeps/unix/sysv/linux/sparc/bits/typesizes.h
+ [__arch64__ || __sparcv9] (__RLIM_T_MATCHES_RLIM64_T): Likewise.
+ * sysdeps/unix/sysv/linux/x86/bits/typesizes.h [__86_64__]
+ (__RLIM_T_MATCHES_RLIM64_T): Likewise.
+ * sysdeps/unix/sysv/linux/arm/Makefile [$(subdir) = resource]
+ (sysdep_routines): Remove oldgetrlimit64.
+ * sysdeps/unix/sysv/linux/i386/Makefile [$(subdir) = resource]
+ (sysdep_routines): Likewise.
+ * sysdeps/unix/sysv/linux/m68k/Makefile [$(subdir) = resource]
+ (sysdep_routines): Likewise.
+ * sysdeps/unix/sysv/linux/powerpc/powerpc32/Makefile
+ [$(subdir) = resource] (sysdep_routines): Likewise.
+ * sysdeps/unix/sysv/linux/s390/s390-32/Makefile
+ [$(subdir) = resource] (sysdep_routines): Likewise.
+ * sysdeps/unix/sysv/linux/arm/getrlimit64.c: Remove file.
+ * sysdeps/unix/sysv/linux/arm/oldgetrlimit64.c: Likewise.
+ * sysdeps/unix/sysv/linux/arm/oldgetrlimit.c: Likewise.
+ * sysdeps/unix/sysv/linux/arm/oldsetrlimit.c: Likewise.
+ * sysdeps/unix/sysv/linux/hppa/getrlimit64.c: Likewise.
+ * sysdeps/unix/sysv/linux/i386/getrlimit64.c: Likewise.
+ * sysdeps/unix/sysv/linux/i386/oldgetrlimit64.c: Likewise.
+ * sysdeps/unix/sysv/linux/m68k/getrlimit64.c: Likewise.
+ * sysdeps/unix/sysv/linux/m68k/oldgetrlimit64.c: Likewise.
+ * sysdeps/unix/sysv/linux/powerpc/getrlimit64.c: Likewise.
+ * sysdeps/unix/sysv/linux/powerpc/oldgetrlimit64.c: Likewise.
+ * sysdeps/unix/sysv/linux/s390/s390-32/getrlimit64.c: Likewise.
+ * sysdeps/unix/sysv/linux/s390/s390-32/oldgetrlimit64.c: Likewise.
+ * sysdeps/unix/sysv/linux/sh/getrlimit64.c: Likewise.
+ * sysdeps/unix/sysv/linux/wordsize-64/getrlimit64.c: Likewise.
+ * sysdeps/unix/sysv/linux/wordsize-64/setrlimit64.c: Likewise.
+ * sysdeps/sysv/linux/generic/wordsize-32/syscalls.list: Remove
+ setrlimit and getrlimit.
+ * sysdeps/unix/sysv/linux/hppa/syscalls.list: Likewise.
+ * sysdeps/unix/sysv/linux/i386/syscalls.list: Likewise.
+ * sysdeps/unix/sysv/linux/m68k/m680x0/syscalls.list: Likewise.
+ * sysdeps/unix/sysv/linux/powerpc/powerpc32/syscalls.list: Likewise.
+ * sysdeps/unix/sysv/linux/powerpc/powerpc64/syscalls.list: Likewise.
+ * sysdeps/unix/sysv/linux/s390/s390-32/syscalls.list: Likewise.
+ * sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list: Likewise.
+ * sysdeps/unix/sysv/linux/syscalls.list: Likewise.
+ * sysdeps/unix/sysv/linux/wordsize-64/syscalls.list: Likewise.
+ * sysdeps/unix/sysv/linux/getrlimit.c: New file.
+ * sysdeps/unix/sysv/linux/sparc/getrlimit64.c: Likewise.
+ * sysdeps/unix/sysv/linux/setrlimit.c: Likewise.
+ * sysdeps/unix/sysv/linux/getrlimit64.c (__getrlimit64): Handle
+ __RLIM_T_MATCHES_RLIM64_T and add alias if defined.
+ (__old_getrlimit64): Add compatibility symbol.
+ * sysdeps/unix/sysv/linux/setrlimit64.c (__setrlimit): Likewise.
+
2016-11-17 Joseph Myers <joseph@codesourcery.com>
* scripts/build-many-glibcs.py (Config.build_gcc): Configure with
/* Same for ino_t and ino64_t. */
# define __INO_T_MATCHES_INO64_T 1
+
+/* And for rlim_t and rlim64_t. */
+# define __RLIM_T_MATCHES_RLIM64_T 1
+#else
+# define __RLIM_T_MATCHES_RLIM64_T 0
#endif
/* Number of descriptors that can fit in an `fd_set'. */
for C type-checking purposes. */
#define __OFF_T_MATCHES_OFF64_T 1
+/* And for __rlim_t and __rlim64_t. */
+#define __RLIM_T_MATCHES_RLIM64_T 1
+
/* Number of descriptors that can fit in an `fd_set'. */
#define __FD_SETSIZE 1024
sysdep_routines += sigrestorer
endif
-ifeq ($(subdir),resource)
-sysdep_routines += oldgetrlimit64
-endif
-
ifeq ($(subdir),stdlib)
gen-as-const-headers += ucontext_i.sym
endif
+++ /dev/null
-#include <sysdeps/unix/sysv/linux/i386/getrlimit64.c>
+++ /dev/null
-/* Empty. */
+++ /dev/null
-#include <sysdeps/unix/sysv/linux/i386/oldgetrlimit64.c>
+++ /dev/null
-/* Empty. */
/* Same for ino_t and ino64_t. */
# define __INO_T_MATCHES_INO64_T 1
+
+/* And for __rlim_t and __rlim64_t. */
+# define __RLIM_T_MATCHES_RLIM64_T 1
+#else
+# define __RLIM_T_MATCHES_RLIM64_T 0
#endif
/* Number of descriptors that can fit in an `fd_set'. */
# File name Caller Syscall name # args Strong name Weak names
# rlimit APIs
-getrlimit - getrlimit i:ip __getrlimit getrlimit
-setrlimit - setrlimit i:ip __setrlimit setrlimit
prlimit64 EXTRA prlimit64 i:iipp prlimit64
fanotify_mark EXTRA fanotify_mark i:iiiiis fanotify_mark
--- /dev/null
+/* Linux getrlimit implementation (32 bits rlim_t).
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <errno.h>
+#include <sys/resource.h>
+#include <sys/types.h>
+#include <shlib-compat.h>
+
+#if !__RLIM_T_MATCHES_RLIM64_T
+
+/* The __NR_getrlimit compatibility implementation is required iff
+ __NR_ugetrlimit is also defined (meaning an old broken RLIM_INFINITY
+ definition). */
+# ifndef __NR_ugetrlimit
+# define __NR_ugetrlimit __NR_getrlimit
+# undef SHLIB_COMPAT
+# define SHLIB_COMPAT(a, b, c) 0
+# endif
+
+int
+__new_getrlimit (enum __rlimit_resource resource, struct rlimit *rlim)
+{
+ return INLINE_SYSCALL_CALL (ugetrlimit, resource, rlim);
+}
+weak_alias (__new_getrlimit, __getrlimit)
+hidden_weak (__getrlimit)
+
+# if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
+/* Back compatible 2Gig limited rlimit. */
+int
+__old_getrlimit (enum __rlimit_resource resource, struct rlimit *rlim)
+{
+ return INLINE_SYSCALL_CALL (getrlimit, resource, rlim);
+}
+compat_symbol (libc, __old_getrlimit, getrlimit, GLIBC_2_0);
+versioned_symbol (libc, __new_getrlimit, getrlimit, GLIBC_2_2);
+# else
+weak_alias (__new_getrlimit, getrlimit)
+# endif
+
+#endif /* __RLIM_T_MATCHES_RLIM64_T */
-/* Copyright (C) 2010-2016 Free Software Foundation, Inc.
+/* Linux getrlimit64 implementation (64 bits rlim_t).
+ Copyright (C) 2010-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
<http://www.gnu.org/licenses/>. */
#include <errno.h>
-#include <sys/resource.h>
#include <sys/types.h>
-#include <sysdep.h>
-#include <kernel-features.h>
+#include <shlib-compat.h>
+
+/* Add this redirection so the strong_alias for __RLIM_T_MATCHES_RLIM64_T
+ linking getlimit64 to {__}getrlimit does not throw a type error. */
+#undef getrlimit
+#undef __getrlimit
+#define getrlimit getrlimit_redirect
+#define __getrlimit __getrlimit_redirect
+#include <sys/resource.h>
+#undef getrlimit
+#undef __getrlimit
/* Put the soft and hard limits for RESOURCE in *RLIMITS.
Returns 0 if successful, -1 if not (and sets errno). */
int
__getrlimit64 (enum __rlimit_resource resource, struct rlimit64 *rlimits)
{
-#ifdef __ASSUME_PRLIMIT64
- return INLINE_SYSCALL (prlimit64, 4, 0, resource, NULL, rlimits);
-#else
-# ifdef __NR_prlimit64
- int res = INLINE_SYSCALL (prlimit64, 4, 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 (__getrlimit (resource, &rlimits32) < 0)
+ 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_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;
-#endif
}
libc_hidden_def (__getrlimit64)
-#ifndef getrlimit64
+
+#if __RLIM_T_MATCHES_RLIM64_T
+/* If both rlim_t and rlimt64_t are essentially the same type we can use
+ alias both interfaces. */
+strong_alias (__getrlimit64, __GI_getrlimit)
+strong_alias (__getrlimit64, __GI___getrlimit)
+strong_alias (__getrlimit64, __getrlimit)
+weak_alias (__getrlimit64, getrlimit)
+/* And there is no need for compat symbols. */
+# undef SHLIB_COMPAT
+# define SHLIB_COMPAT(a, b, c) 0
+#endif
+
+#if SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_2)
+/* Back compatible 2GiB limited rlimit. */
+extern int __new_getrlimit (enum __rlimit_resource, struct rlimit *);
+
+int
+attribute_compat_text_section
+__old_getrlimit64 (enum __rlimit_resource resource, struct rlimit64 *rlimits)
+{
+# if __RLIM_T_MATCHES_RLIM64_T
+# define rlimits32 (*rlimits)
+# else
+ struct rlimit rlimits32;
+# endif
+
+ if (__new_getrlimit (resource, &rlimits32) < 0)
+ return -1;
+
+ if (rlimits32.rlim_cur == RLIM_INFINITY)
+ rlimits->rlim_cur = RLIM64_INFINITY >> 1;
+ else
+ rlimits->rlim_cur = rlimits32.rlim_cur;
+ if (rlimits32.rlim_max == RLIM_INFINITY)
+ rlimits->rlim_max = RLIM64_INFINITY >> 1;
+ else
+ rlimits->rlim_max = rlimits32.rlim_max;
+
+ return 0;
+}
+versioned_symbol (libc, __getrlimit64, getrlimit64, GLIBC_2_2);
+compat_symbol (libc, __old_getrlimit64, getrlimit64, GLIBC_2_1);
+#else
weak_alias (__getrlimit64, getrlimit64)
libc_hidden_weak (getrlimit64)
#endif
+++ /dev/null
-#include <sysdeps/unix/sysv/linux/i386/getrlimit64.c>
socket - socket i:iii __socket socket
socketpair - socketpair i:iiif __socketpair socketpair
-setrlimit - setrlimit i:ip __setrlimit setrlimit
-getrlimit - getrlimit i:ip __getrlimit getrlimit
prlimit64 EXTRA prlimit64 i:iipp __prlimit64 prlimit64@@GLIBC_2.17
fanotify_mark EXTRA fanotify_mark i:iiiiis __fanotify_mark fanotify_mark@@GLIBC_2.19
personality EXTRA personality Ei:i __personality personality
libpthread-shared-only-routines += libc-do-syscall
endif
-ifeq ($(subdir),resource)
-sysdep_routines += oldgetrlimit64
-endif
-
ifeq ($(subdir),stdlib)
gen-as-const-headers += ucontext_i.sym
endif
+++ /dev/null
-/* Copyright (C) 1991-2016 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-/* This is a compatibility file. If we don't build the libc with
- versioning don't compile this file. */
-#include <shlib-compat.h>
-#if SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_2)
-
-#include <errno.h>
-#include <sys/resource.h>
-#include <sys/types.h>
-
-extern int __new_getrlimit (enum __rlimit_resource, struct rlimit *);
-extern int __old_getrlimit64 (enum __rlimit_resource resource,
- struct rlimit64 *rlimits);
-
-
-/* Put the soft and hard limits for RESOURCE in *RLIMITS.
- Returns 0 if successful, -1 if not (and sets errno). */
-int
-attribute_compat_text_section
-__old_getrlimit64 (enum __rlimit_resource resource, struct rlimit64 *rlimits)
-{
- struct rlimit rlimits32;
-
- if (__new_getrlimit (resource, &rlimits32) < 0)
- return -1;
-
- if (rlimits32.rlim_cur == RLIM_INFINITY)
- rlimits->rlim_cur = RLIM64_INFINITY >> 1;
- else
- rlimits->rlim_cur = rlimits32.rlim_cur;
- if (rlimits32.rlim_max == RLIM_INFINITY)
- rlimits->rlim_max = RLIM64_INFINITY >> 1;
- else
- rlimits->rlim_max = rlimits32.rlim_max;
-
- return 0;
-}
-
-compat_symbol (libc, __old_getrlimit64, getrlimit64, GLIBC_2_1);
-
-#endif /* SHLIB_COMPAT */
modify_ldt EXTRA modify_ldt i:ipi __modify_ldt modify_ldt
vm86old EXTRA vm86old i:p __vm86old vm86@GLIBC_2.0
vm86 - vm86 i:ip __vm86 vm86@@GLIBC_2.3.4
-oldgetrlimit EXTRA getrlimit i:ip __old_getrlimit getrlimit@GLIBC_2.0
-setrlimit - setrlimit i:ip __setrlimit setrlimit@GLIBC_2.0 setrlimit@@GLIBC_2.2
waitpid - waitpid Ci:ipi __waitpid waitpid
prlimit64 EXTRA prlimit64 i:iipp prlimit64
sysdep-others += lddlibc4
install-bin += lddlibc4
endif
-
-ifeq ($(subdir),resource)
-sysdep_routines += oldgetrlimit64
-endif
+++ /dev/null
-#include <sysdeps/unix/sysv/linux/i386/getrlimit64.c>
+++ /dev/null
-# File name Caller Syscall name Args Strong name Weak names
-
-oldgetrlimit EXTRA getrlimit i:ip __old_getrlimit getrlimit@GLIBC_2.0
-setrlimit - setrlimit i:ip __setrlimit setrlimit@GLIBC_2.0 setrlimit@@GLIBC_2.2
+++ /dev/null
-#include <sysdeps/unix/sysv/linux/i386/oldgetrlimit64.c>
+++ /dev/null
-#include <sysdeps/unix/sysv/linux/i386/getrlimit64.c>
+++ /dev/null
-#include <sysdeps/unix/sysv/linux/i386/oldgetrlimit64.c>
# See Makeconfig regarding the use of default-abi.
default-abi := 32
-
-ifeq ($(subdir),resource)
-sysdep_routines += oldgetrlimit64
-endif
chown - chown i:sii __chown chown@@GLIBC_2.1
lchown - lchown i:sii __lchown lchown@@GLIBC_2.0 chown@GLIBC_2.0
-# System calls with wrappers.
-oldgetrlimit EXTRA getrlimit i:ip __old_getrlimit getrlimit@GLIBC_2.0
-setrlimit - setrlimit i:ip __setrlimit setrlimit@GLIBC_2.0 setrlimit@@GLIBC_2.2
-
# Due to 64bit alignment there is a dummy second parameter
readahead - readahead i:iiiii __readahead readahead
+++ /dev/null
-# File name Caller Syscall name # args Strong name Weak names
-
-getrlimit - ugetrlimit i:ip __getrlimit getrlimit getrlimit64 __getrlimit64
/* Same for ino_t and ino64_t. */
# define __INO_T_MATCHES_INO64_T 1
+
+/* And for __rlim_t and __rlim64_t. */
+# define __RLIM_T_MATCHES_RLIM64_T 1
+#else
+# define __RLIM_T_MATCHES_RLIM64_T 0
#endif
/* Number of descriptors that can fit in an `fd_set'. */
sysdep_headers += sys/elf.h
endif
-ifeq ($(subdir),resource)
-sysdep_routines += oldgetrlimit64
-endif
-
ifeq ($(subdir),elf)
ifeq (yes,$(build-shared))
# This is needed to support g++ v2 and v3.
+++ /dev/null
-#include <sysdeps/unix/sysv/linux/i386/getrlimit64.c>
+++ /dev/null
-#include <sysdeps/unix/sysv/linux/i386/oldgetrlimit64.c>
setfsgid - setfsgid32 Ei:i setfsgid
setfsuid - setfsuid32 Ei:i setfsuid
-oldgetrlimit EXTRA getrlimit i:ip __old_getrlimit getrlimit@GLIBC_2.0
-setrlimit - setrlimit i:ip __setrlimit setrlimit@GLIBC_2.0 setrlimit@@GLIBC_2.2
-
prlimit64 EXTRA prlimit64 i:iipp prlimit64
fanotify_mark EXTRA fanotify_mark i:iiiiis fanotify_mark
personality EXTRA personality Ei:i __personality personality
--- /dev/null
+/* Linux setrlimit implementation (32 bits off_t).
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <errno.h>
+#include <sys/resource.h>
+#include <sys/types.h>
+#include <shlib-compat.h>
+
+#if !__RLIM_T_MATCHES_RLIM64_T
+
+/* The compatibility symbol is meant to match the old __NR_getrlimit syscall
+ (with broken RLIM_INFINITY definition). It should be provided iff
+ __NR_getrlimit and __NR_ugetrlimit are both defined. */
+# ifndef __NR_ugetrlimit
+# undef SHLIB_COMPAT
+# define SHLIB_COMPAT(a, b, c) 0
+# endif
+
+int
+__setrlimit (enum __rlimit_resource resource, const struct rlimit *rlim)
+{
+# ifdef __NR_prlimit64
+ struct rlimit64 rlim64;
+
+ if (rlim->rlim_cur == RLIM_INFINITY)
+ rlim64.rlim_cur = RLIM64_INFINITY;
+ else
+ rlim64.rlim_cur = rlim->rlim_cur;
+ if (rlim->rlim_max == RLIM_INFINITY)
+ rlim64.rlim_max = RLIM64_INFINITY;
+ else
+ rlim64.rlim_max = rlim->rlim_max;
+
+ 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)
+strong_alias (__setrlimit, __setrlimit_1)
+compat_symbol (libc, __setrlimit, setrlimit, GLIBC_2_0);
+versioned_symbol (libc, __setrlimit_1, setrlimit, GLIBC_2_2);
+# else
+weak_alias (__setrlimit, setrlimit)
+# endif
+
+#endif /* __RLIM_T_MATCHES_RLIM64_T */
-/* Copyright (C) 2010-2016 Free Software Foundation, Inc.
+/* Linux setrlimit64 implementation (64 bits off_t).
+ Copyright (C) 2010-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
<http://www.gnu.org/licenses/>. */
#include <errno.h>
-#include <sys/resource.h>
#include <sys/types.h>
-#include <sysdep.h>
-#include <kernel-features.h>
+#include <shlib-compat.h>
+
+/* Add this redirection so the strong_alias for __RLIM_T_MATCHES_RLIM64_T
+ linking setlimit64 to {__}setrlimit does not throw a type error. */
+#undef settrlimit
+#undef __sttrlimit
+#define setrlimit setrlimit_redirect
+#define __setrlimit __setrlimit_redirect
+#include <sys/resource.h>
+#undef setrlimit
+#undef __setrlimit
/* Set the soft and hard limits for RESOURCE to *RLIMITS.
Only the super-user can increase hard limits.
Return 0 if successful, -1 if not (and sets errno). */
int
-setrlimit64 (enum __rlimit_resource resource, const struct rlimit64 *rlimits)
+__setrlimit64 (enum __rlimit_resource resource, const struct rlimit64 *rlimits)
{
-#ifdef __ASSUME_PRLIMIT64
- return INLINE_SYSCALL (prlimit64, 4, 0, resource, rlimits, NULL);
-#else
-# ifdef __NR_prlimit64
- int res = INLINE_SYSCALL (prlimit64, 4, 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
+#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_max = RLIM_INFINITY;
else
rlimits32.rlim_max = rlimits->rlim_max;
+# else
+# define rlimits32 (*rlimits)
+# endif
- return __setrlimit (resource, &rlimits32);
+ res = INLINE_SYSCALL_CALL (setrlimit, resource, &rlimits32);
#endif
+
+ return res;
}
+weak_alias (__setrlimit64, setrlimit64)
+
+#if __RLIM_T_MATCHES_RLIM64_T
+strong_alias (__setrlimit64, __setrlimit)
+weak_alias (__setrlimit64, setrlimit)
+#endif
+++ /dev/null
-#include <sysdeps/unix/sysv/linux/i386/getrlimit64.c>
/* Same for ino_t and ino64_t. */
# define __INO_T_MATCHES_INO64_T 1
+
+/* And for __rlim_t and __rlim64_t. */
+# define __RLIM_T_MATCHES_RLIM64_T 1
+#else
+# define __RLIM_T_MATCHES_RLIM64_T 0
#endif
/* Number of descriptors that can fit in an `fd_set'. */
-/* Copyright (C) 1999-2016 Free Software Foundation, Inc.
+/* Linux getrlimit64 sparc32 implementation (64 bits rlim_t).
+ Copyright (C) 2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-#define getrlimit64 __new_getrlimit64
+#include <shlib-compat.h>
-#include "../getrlimit64.c"
+#undef SHLIB_COMPAT
+#define SHLIB_COMPAT(a,b,c) 0
-#undef getrlimit64
-#include <shlib-compat.h>
-versioned_symbol (libc, __getrlimit64, getrlimit64, GLIBC_2_2);
-strong_alias (__getrlimit64, __GI_getrlimit64)
+#include <sysdeps/unix/sysv/linux/getrlimit64.c>
lchown - lchown32 i:sii __lchown lchown
fchown - fchown32 i:iii __fchown fchown
-setrlimit - setrlimit 2 __setrlimit setrlimit
-getrlimit - getrlimit 2 __getrlimit getrlimit
getegid - getegid32 Ei: __getegid getegid
geteuid - geteuid32 Ei: __geteuid geteuid
getgid - getgid32 Ei: __getgid getgid
getppid - getppid Ei: __getppid getppid
getresuid - getresuid i:ppp getresuid
getresgid - getresgid i:ppp getresgid
-getrlimit - ugetrlimit i:ip __new_getrlimit __getrlimit getrlimit@@GLIBC_2.2
getsid - getsid i:i getsid
init_module EXTRA init_module 5 init_module
inotify_add_watch EXTRA inotify_add_watch i:isi inotify_add_watch
+++ /dev/null
-/* getrlimit64 is the same as getrlimit. */
+++ /dev/null
-/* setrlimit64 is the same as setrlimit. */
fstatfs - fstatfs i:ip __fstatfs fstatfs fstatfs64 __fstatfs64
statfs - statfs i:sp __statfs statfs statfs64
mmap - mmap b:aniiii __mmap mmap __mmap64 mmap64
-getrlimit - getrlimit i:ip __getrlimit getrlimit getrlimit64 __getrlimit64
-setrlimit - setrlimit i:ip __setrlimit setrlimit setrlimit64
readahead - readahead i:iii __readahead readahead
sendfile - sendfile i:iipi sendfile sendfile64
sync_file_range - sync_file_range Ci:iiii sync_file_range
/* Same for ino_t and ino64_t. */
# define __INO_T_MATCHES_INO64_T 1
+
+/* And for __rlim_t and __rlim64_t. */
+# define __RLIM_T_MATCHES_RLIM64_T 1
+#else
+# define __RLIM_T_MATCHES_RLIM64_T 0
#endif
/* Number of descriptors that can fit in an `fd_set'. */
projects / thirdparty / glibc.git / commitdiff
