Remove __ASSUME_NEW_GETRLIMIT_SYSCALL.

diff --git a/ChangeLog b/ChangeLog
index 9caa783..f97e481 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,16 @@
+2012-05-25  Joseph Myers  <joseph@codesourcery.com>
+
+       * sysdeps/unix/sysv/linux/kernel-features.h
+       (__ASSUME_NEW_GETRLIMIT_SYSCALL): Remove all definitions.
+       * sysdeps/unix/sysv/linux/i386/getrlimit.c: Do not include
+       kernel-features.h.
+       [!__ASSUME_NEW_GETRLIMIT_SYSCALL]: Remove conditional code.
+       [__ASSUME_NEW_GETRLIMIT_SYSCALL]: Make code unconditional.
+       * sysdeps/unix/sysv/linux/i386/setrlimit.c Do not include
+       kernel-features.h.
+       [!__ASSUME_NEW_GETRLIMIT_SYSCALL]: Remove conditional code.
+       [__ASSUME_NEW_GETRLIMIT_SYSCALL]: Make code unconditional.
+
 2012-05-25  H.J. Lu  <hongjiu.lu@intel.com>
 
        * configure.in: Define the default includes to being none.

diff --git a/sysdeps/unix/sysv/linux/i386/getrlimit.c b/sysdeps/unix/sysv/linux/i386/getrlimit.c
index 21a2c00..e18f9de 100644 (file)
--- a/sysdeps/unix/sysv/linux/i386/getrlimit.c
+++ b/sysdeps/unix/sysv/linux/i386/getrlimit.c
@@ -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
@@ -23,58 +23,15 @@
 #include <shlib-compat.h>
 #include <bp-checks.h>
 
-#include <kernel-features.h>
-
 extern int __new_getrlimit (enum __rlimit_resource resource,
                            struct rlimit *__unbounded rlimits);
 
-
-/* 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
-int __have_no_new_getrlimit;
-#endif
+/* Consider moving to syscalls.list.  */
 
 int
 __new_getrlimit (enum __rlimit_resource resource, struct rlimit *rlimits)
 {
-#ifdef __ASSUME_NEW_GETRLIMIT_SYSCALL
   return INLINE_SYSCALL (ugetrlimit, 2, resource, CHECK_1 (rlimits));
-#else
-  int result;
-
-# ifdef __NR_ugetrlimit
-  if (__have_no_new_getrlimit <= 0)
-    {
-      result = INLINE_SYSCALL (ugetrlimit, 2, resource, CHECK_1 (rlimits));
-
-      /* If the system call is available remember this fact and return.  */
-      if (result != -1 || errno != ENOSYS)
-       {
-         __have_no_new_getrlimit = -1;
-         return result;
-       }
-
-      /* Remember that the system call is not available.  */
-      __have_no_new_getrlimit = 1;
-    }
-# endif
-
-  /* Fall back to the old system call.  */
-  result = INLINE_SYSCALL (getrlimit, 2, resource, CHECK_1 (rlimits));
-
-  if (result == -1)
-    return result;
-
-  /* We might have to correct the limits values.  Since the old values
-     were signed the infinity value is too small.  */
-  if (rlimits->rlim_cur == RLIM_INFINITY >> 1)
-    rlimits->rlim_cur = RLIM_INFINITY;
-  if (rlimits->rlim_max == RLIM_INFINITY >> 1)
-    rlimits->rlim_max = RLIM_INFINITY;
-
-  return result;
-#endif
 }
 
 weak_alias (__new_getrlimit, __getrlimit);

diff --git a/sysdeps/unix/sysv/linux/i386/setrlimit.c b/sysdeps/unix/sysv/linux/i386/setrlimit.c
index d6f904f..7683b85 100644 (file)
--- a/sysdeps/unix/sysv/linux/i386/setrlimit.c
+++ b/sysdeps/unix/sysv/linux/i386/setrlimit.c
@@ -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);

diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index fd2f1db..0ea453d 100644 (file)
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -40,11 +40,6 @@
 /* The sendfile syscall was introduced in 2.2.0.  */
 #define __ASSUME_SENDFILE              1
 
-/* On x86 another `getrlimit' syscall was added in 2.3.25.  */
-#ifdef __i386__
-# define __ASSUME_NEW_GETRLIMIT_SYSCALL        1
-#endif
-
 /* On x86 the truncate64/ftruncate64 syscalls were introduced in 2.3.31.  */
 #ifdef __i386__
 # define __ASSUME_TRUNCATE64_SYSCALL   1
@@ -68,11 +63,6 @@
 # define __ASSUME_STAT64_SYSCALL       1
 #endif
 
-/* I know for sure that getrlimit are in 2.3.35 on powerpc.  */
-#ifdef __powerpc__
-# define __ASSUME_NEW_GETRLIMIT_SYSCALL        1
-#endif
-
 /* I know for sure that these are in 2.3.35 on powerpc. But PowerPC64 does not
    support separate 64-bit syscalls, already 64-bit.  */
 #if defined __powerpc__ && !defined __powerpc64__