lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-07-29 11:41:21 +03:00
Code Activity

linux: Add prlimit64 C implementation

Browse Source 
The LFS prlimit64 requires a arch-specific implementation in
syscalls.list.  Instead add a generic one that handles the
required symbol alias for __RLIM_T_MATCHES_RLIM64_T.

HPPA is the only outlier which requires a different default
symbol.

Checked on x86_64-linux-gnu and with build for the affected ABIs.
This commit is contained in:
Adhemerval Zanella
2020-06-11 17:41:16 -03:00
parent df4cb2280e
commit 83008fa495
18 changed files with 47 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
sysdeps/unix/sysv/linux/Makefile
View File

@ -56,7 +56,7 @@ endif
ifeq ($(subdir),misc)
sysdep_routines += adjtimex clone umount umount2 readahead sysctl \
setfsuid setfsgid epoll_pwait signalfd \
eventfd eventfd_read eventfd_write prlimit \
eventfd eventfd_read eventfd_write prlimit prlimit64 \
personality epoll_wait tee vmsplice splice \
open_by_handle_at mlock2 pkey_mprotect pkey_set pkey_get \
timerfd_gettime timerfd_settime prctl \

2
sysdeps/unix/sysv/linux/arm/syscalls.list
View File

@ -15,8 +15,6 @@ getgroups - getgroups32 i:ip __getgroups getgroups
setfsgid - setfsgid32 Ei:i setfsgid
setfsuid - setfsuid32 Ei:i setfsuid
prlimit64 EXTRA prlimit64 i:iipp prlimit64
personality EXTRA personality Ei:i __personality personality
# proper socket implementations:

4
sysdeps/unix/sysv/linux/generic/wordsize-32/syscalls.list
View File

@ -1,4 +0,0 @@
# File name Caller Syscall name # args Strong name Weak names
# rlimit APIs
prlimit64 EXTRA prlimit64 i:iipp prlimit64

2
sysdeps/unix/sysv/linux/hppa/prlimit64.c Normal file
View File

@ -0,0 +1,2 @@
#define VERSION_prlimit64 GLIBC_2_17
#include <sysdeps/unix/sysv/linux/prlimit64.c>

1
sysdeps/unix/sysv/linux/hppa/syscalls.list
View File

@ -9,5 +9,4 @@ shutdown - shutdown i:ii __shutdown shutdown
socket - socket i:iii __socket socket
socketpair - socketpair i:iiif __socketpair socketpair
prlimit64 EXTRA prlimit64 i:iipp __prlimit64 prlimit64@@GLIBC_2.17
personality EXTRA personality Ei:i __personality personality

2
sysdeps/unix/sysv/linux/i386/syscalls.list
View File

@ -19,6 +19,4 @@ 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
prlimit64 EXTRA prlimit64 i:iipp prlimit64
personality EXTRA personality Ei:i __personality personality

1
sysdeps/unix/sysv/linux/m68k/syscalls.list
View File

@ -16,5 +16,4 @@ setfsgid - setfsgid32 Ei:i setfsgid
setfsuid - setfsuid32 Ei:i setfsuid
cacheflush EXTRA cacheflush i:iiii __cacheflush cacheflush
prlimit64 EXTRA prlimit64 i:iipp prlimit64
personality EXTRA personality Ei:i __personality personality

1
sysdeps/unix/sysv/linux/microblaze/syscalls.list
View File

@ -2,5 +2,4 @@
cacheflush EXTRA cacheflush i:iiii __cacheflush cacheflush
prlimit64 EXTRA prlimit64 i:iipp prlimit64
personality EXTRA personality Ei:i __personality personality

3
sysdeps/unix/sysv/linux/mips/mips32/syscalls.list
View File

@ -1,3 +0,0 @@
# File name Caller Syscall name # args Strong name Weak names
prlimit64 EXTRA prlimit64 i:iipp prlimit64

2
sysdeps/unix/sysv/linux/mips/mips64/n32/syscalls.list
View File

@ -4,6 +4,4 @@
# return value.
lseek64 - lseek i:iii __lseek64 __libc_lseek64 lseek64@@GLIBC_2.2 llseek@GLIBC_2.0:GLIBC_2.28
prlimit64 EXTRA prlimit64 i:iipp prlimit64
personality EXTRA personality Ei:i __personality personality

2
sysdeps/unix/sysv/linux/mips/mips64/n64/syscalls.list
View File

@ -1,5 +1,3 @@
# File name Caller Syscall name # args Strong name Weak names
prlimit EXTRA prlimit64 i:iipp prlimit prlimit64
sendfile - sendfile i:iipi sendfile sendfile64

2
sysdeps/unix/sysv/linux/powerpc/powerpc32/syscalls.list
View File

@ -2,5 +2,3 @@
chown - chown i:sii __chown chown@@GLIBC_2.1
lchown - lchown i:sii __lchown lchown@@GLIBC_2.0 chown@GLIBC_2.0
prlimit64 EXTRA prlimit64 i:iipp prlimit64

5
sysdeps/unix/sysv/linux/prlimit.c
View File

@ -18,6 +18,10 @@
#include <sys/resource.h>
#include <sysdep.h>
/* For ports that support the 64-bit ABI we do not need to define prlimit
and instead prlimit aliases to prlimit64. See the prlimit64
implementation. */
#if !__RLIM_T_MATCHES_RLIM64_T
int
prlimit (__pid_t pid, enum __rlimit_resource resource,
const struct rlimit *new_rlimit, struct rlimit *old_rlimit)
@ -73,3 +77,4 @@ prlimit (__pid_t pid, enum __rlimit_resource resource,
return res;
}
#endif /* __RLIM_T_MATCHES_RLIM64_T */

39
sysdeps/unix/sysv/linux/prlimit64.c Normal file
View File

@ -0,0 +1,39 @@
/* Get/set resource limits. Linux specific syscall.
Copyright (C) 2021 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
<https://www.gnu.org/licenses/>. */
#define prlimit __redirect_prlimit
#include <sys/resource.h>
#undef prlimit
#include <sysdep.h>
int
__prlimit64 (pid_t pid, enum __rlimit_resource resource,
const struct rlimit64 *new_rlimit, struct rlimit64 *old_rlimit)
{
return INLINE_SYSCALL_CALL (prlimit64, pid, resource, new_rlimit,
old_rlimit);
}
#ifdef VERSION_prlimit64
# include <shlib-compat.h>
versioned_symbol (libc, __prlimit64, prlimit64, VERSION_prlimit64);
#else
strong_alias (__prlimit64, prlimit64)
# if __RLIM_T_MATCHES_RLIM64_T
strong_alias (prlimit64, prlimit)
# endif
#endif

1
sysdeps/unix/sysv/linux/s390/s390-32/syscalls.list
View File

@ -15,5 +15,4 @@ getgroups - getgroups32 i:ip __getgroups getgroups
setfsgid - setfsgid32 Ei:i setfsgid
setfsuid - setfsuid32 Ei:i setfsuid
prlimit64 EXTRA prlimit64 i:iipp prlimit64
personality EXTRA personality Ei:i __personality personality

2
sysdeps/unix/sysv/linux/sh/syscalls.list
View File

@ -15,6 +15,4 @@ getgroups - getgroups32 i:ip __getgroups getgroups
setfsgid - setfsgid32 Ei:i setfsgid
setfsuid - setfsuid32 Ei:i setfsuid
prlimit64 EXTRA prlimit64 i:iipp prlimit64
personality EXTRA personality Ei:i __personality personality

2
sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list
View File

@ -14,5 +14,3 @@ getgroups - getgroups32 i:ip __getgroups getgroups
setfsgid - setfsgid32 Ei:i setfsgid
setfsuid - setfsuid32 Ei:i setfsuid
prlimit64 EXTRA prlimit64 i:iipp prlimit64

1
sysdeps/unix/sysv/linux/wordsize-64/syscalls.list
View File

@ -1,5 +1,4 @@
# File name Caller Syscall name # args Strong name Weak names
sendfile - sendfile i:iipi sendfile sendfile64
prlimit EXTRA prlimit64 i:iipp prlimit prlimit64
personality EXTRA personality i:i __personality personality