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Remove __ASSUME_NEW_GETRLIMIT_SYSCALL.

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This commit is contained in:
Joseph Myers
2012-05-25 22:30:06 +00:00
parent 918b56067a
commit a82392228a
4 changed files with 17 additions and 95 deletions
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42
sysdeps/unix/sysv/linux/i386/setrlimit.c
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@ -1,4 +1,4 @@
/* Copyright (C) 1999, 2000, 2003, 2006 Free Software Foundation, Inc.
/* Copyright (C) 1999-2012 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
@ -24,53 +24,15 @@
#include <shlib-compat.h>
#include <bp-checks.h>
#include <kernel-features.h>
extern int __new_setrlimit (enum __rlimit_resource resource,
const struct rlimit *__unboundedrlimits);
/* Linux 2.3.25 introduced a new system call since the types used for
the limits are now unsigned. */
#if defined __NR_ugetrlimit && !defined __ASSUME_NEW_GETRLIMIT_SYSCALL
extern int __have_no_new_getrlimit; /* from getrlimit.c */
#endif
/* Consider moving to syscalls.list. */
int
__new_setrlimit (enum __rlimit_resource resource, const struct rlimit *rlimits)
{
#ifdef __ASSUME_NEW_GETRLIMIT_SYSCALL
return INLINE_SYSCALL (setrlimit, 2, resource, CHECK_1 (rlimits));
#else
struct rlimit rlimits_small;
# ifdef __NR_ugetrlimit
if (__have_no_new_getrlimit == 0)
{
/* Check if the new ugetrlimit syscall exists. We must do this
first because older kernels don't reject negative rlimit
values in setrlimit. */
int result = INLINE_SYSCALL (ugetrlimit, 2, resource, __ptrvalue (&rlimits_small));
if (result != -1 || errno != ENOSYS)
/* The syscall exists. */
__have_no_new_getrlimit = -1;
else
/* The syscall does not exist. */
__have_no_new_getrlimit = 1;
}
if (__have_no_new_getrlimit < 0)
return INLINE_SYSCALL (setrlimit, 2, resource, CHECK_1 (rlimits));
# endif
/* We might have to correct the limits values. Since the old values
were signed the new values might be too large. */
rlimits_small.rlim_cur = MIN ((unsigned long int) rlimits->rlim_cur,
RLIM_INFINITY >> 1);
rlimits_small.rlim_max = MIN ((unsigned long int) rlimits->rlim_max,
RLIM_INFINITY >> 1);
/* Use the adjusted values. */
return INLINE_SYSCALL (setrlimit, 2, resource, __ptrvalue (&rlimits_small));
#endif
}
weak_alias (__new_setrlimit, __setrlimit);