Remove pre-2.4 Linux kernel support.

ChangeLog

@@ -1,3 +1,163 @@
+2012-05-25  Joseph Myers  <joseph@codesourcery.com>
+
+	[BZ #13717]
+	* sysdeps/unix/sysv/linux/configure.in (arch_minimum_kernel): Set
+	to 2.4.0 where earlier.
+	* sysdeps/unix/sysv/linux/configure: Regenerated.
+	* sysdeps/unix/sysv/linux/i386/chown.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/fchown.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/fchownat.c (fchownat)
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	(fchownat) [!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/getegid.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/geteuid.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/getgid.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/getgroups.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/getresgid.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/getresuid.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/getuid.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/lchown.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/msgctl.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/semctl.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/setegid.c: Do not include
+	<kernel-features.h>.
+	[__NR_setresgid] (__setresgid): Do not declare.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/seteuid.c: Do not include
+	<kernel-features.h>.
+	[__NR_setresuid] (__setresuid): Do not declare.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/setfsgid.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/setfsuid.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/setgid.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/setgroups.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/setregid.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/setresgid.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/setresuid.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/setreuid.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/setuid.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/i386/shmctl.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/kernel-features.h
+	(__ASSUME_SETRESUID_SYSCALL): Remove.
+	(__ASSUME_SETRESGID_SYSCALL): Likewise.
+	(__ASSUME_32BITUIDS): Likewise.
+	(__ASSUME_LDT_WORKS): Likewise.
+	(__ASSUME_O_DIRECTORY): Likewise.
+	(__ASSUME_NEW_GETRLIMIT_SYSCALL): Define conditional on
+	architecture but not kernel version.
+	(__ASSUME_TRUNCATE64_SYSCALL): Likewise.
+	(__ASSUME_MMAP2_SYSCALL): Likewise.
+	(__ASSUME_STAT64_SYSCALL): Likewise.
+	(__ASSUME_IPC64): Likewise.
+	* sysdeps/unix/sysv/linux/local-setxid.h: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/opendir.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_O_DIRECTORY]: Make code unconditional.
+	* sysdeps/unix/sysv/linux/opensock.c [__LINUX_KERNEL_VERSION <
+	132096]: Remove conditional code.
+	[__LINUX_KERNEL_VERSION >= 132096]: Make code unconditional.
+	* sysdeps/unix/sysv/linux/s390/s390-32/chown.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/s390/s390-32/lchown.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/setegid.c: Do not include
+	<kernel-features.h>.
+	[__NR_setresgid || __ASSUME_SETRESGID_SYSCALL]: Make code
+	unconditional.
+	(__setresgid): Do not declare.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/seteuid.c: Do not include
+	<kernel-features.h>.
+	[__NR_setresuid || __ASSUME_SETRESUID_SYSCALL]: Make code
+	unconditional.
+	(__setresuid): Do not declare.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/sh/chown.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+	* sysdeps/unix/sysv/linux/sparc/sparc32/semctl.c: Do not include
+	<kernel-features.h>.
+	[__ASSUME_32BITUIDS]: Make code unconditional.
+	[!__ASSUME_32BITUIDS]: Remove conditional code.
+
 2012-05-25  Richard Henderson  <rth@twiddle.net>
 
 	* sysdeps/powerpc/powerpc32/dl-irel.h (elf_ifunc_invoke): Pass

NEWS

@@ -67,7 +67,7 @@ Version 2.16
   after the TI-RPC library becomes fully sufficient for the needs of
   existing applications.
 
-* Compatibility code for Linux kernel versions before 2.2 has been removed.
+* Compatibility code for Linux kernel versions before 2.4 has been removed.
   Note that glibc is not expected to work with any Linux kernel version
   before 2.6.
 

sysdeps/unix/sysv/linux/configure

@@ -284,25 +284,25 @@ test -n "$arch_minimum_kernel" ||
 case "$machine" in
   i386*)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.2.0
+    arch_minimum_kernel=2.4.0
     ;;
   powerpc/powerpc32)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.2.0
+    arch_minimum_kernel=2.4.0
     ;;
   powerpc/powerpc64)
     arch_minimum_kernel=2.4.21
     ;;
   s390/s390-32)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.2.10
+    arch_minimum_kernel=2.4.0
     ;;
   s390/s390-64)
     libc_cv_gcc_unwind_find_fde=yes
     arch_minimum_kernel=2.4.0
     ;;
   sh*)
-    arch_minimum_kernel=2.3.99
+    arch_minimum_kernel=2.4.0
     libc_cv_gcc_unwind_find_fde=yes
     ;;
   sparc/sparc64*)
@@ -311,13 +311,10 @@ case "$machine" in
     ;;
   sparc*)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.2.0
-    ;;
-  x86_64*)
     arch_minimum_kernel=2.4.0
     ;;
   *)
-    arch_minimum_kernel=2.2.0
+    arch_minimum_kernel=2.4.0
     ;;
 esac
 if test -n "$minimum_kernel"; then

sysdeps/unix/sysv/linux/configure.in

@@ -41,25 +41,25 @@ test -n "$arch_minimum_kernel" ||
 case "$machine" in
   i386*)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.2.0
+    arch_minimum_kernel=2.4.0
     ;;
   powerpc/powerpc32)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.2.0
+    arch_minimum_kernel=2.4.0
     ;;
   powerpc/powerpc64)
     arch_minimum_kernel=2.4.21
     ;;
   s390/s390-32)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.2.10
+    arch_minimum_kernel=2.4.0
     ;;
   s390/s390-64)
     libc_cv_gcc_unwind_find_fde=yes
     arch_minimum_kernel=2.4.0
     ;;
   sh*)
-    arch_minimum_kernel=2.3.99
+    arch_minimum_kernel=2.4.0
     libc_cv_gcc_unwind_find_fde=yes
     ;;
   sparc/sparc64*)
@@ -68,13 +68,10 @@ case "$machine" in
     ;;
   sparc*)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.2.0
-    ;;
-  x86_64*)
     arch_minimum_kernel=2.4.0
     ;;
   *)
-    arch_minimum_kernel=2.2.0
+    arch_minimum_kernel=2.4.0
     ;;
 esac
 if test -n "$minimum_kernel"; then

sysdeps/unix/sysv/linux/i386/chown.c

@@ -24,7 +24,6 @@
 #include <bp-checks.h>
 
 #include <linux/posix_types.h>
-#include <kernel-features.h>
 
 /*
   In Linux 2.1.x the chown functions have been changed.  A new function lchown
@@ -41,44 +40,12 @@ extern int __chown_is_lchown (const char *__file, uid_t __owner,
 extern int __real_chown (const char *__file, uid_t __owner, gid_t __group);
 
 
-#ifdef __NR_chown32
-#  if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-# endif
-#endif /* __NR_chown32 */
+/* Consider moving to syscalls.list.  */
 
 int
 __real_chown (const char *file, uid_t owner, gid_t group)
 {
-#if __ASSUME_32BITUIDS
   return INLINE_SYSCALL (chown32, 3, CHECK_STRING (file), owner, group);
-#else
-  /* !__ASSUME_32BITUIDS */
-# ifdef __NR_chown32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int result;
-      int saved_errno = errno;
-
-      result = INLINE_SYSCALL (chown32, 3, CHECK_STRING (file), owner, group);
-      if (result == 0 || errno != ENOSYS)
-	return result;
-
-      __set_errno (saved_errno);
-      __libc_missing_32bit_uids = 1;
-    }
-# endif /* __NR_chown32 */
-  if (((owner + 1) > (uid_t) ((__kernel_uid_t) -1U))
-      || ((group + 1) > (gid_t) ((__kernel_gid_t) -1U)))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  return INLINE_SYSCALL (chown, 3, CHECK_STRING (file), owner, group);
-#endif
 }
 
 

sysdeps/unix/sysv/linux/i386/fchown.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2003, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2012 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
@@ -22,46 +22,13 @@
 #include <sys/syscall.h>
 
 #include <linux/posix_types.h>
-#include <kernel-features.h>
 
-#ifdef __NR_fchown32
-# if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-# endif
-#endif /* __NR_fchown32 */
+/* Consider moving to syscalls.list.  */
 
 int
 __fchown (int fd, uid_t owner, gid_t group)
 {
-#if  __ASSUME_32BITUIDS > 0
   return INLINE_SYSCALL (fchown32, 3, fd, owner, group);
-#else
-# ifdef __NR_fchown32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int result;
-      int saved_errno = errno;
-
-      result = INLINE_SYSCALL (fchown32, 3, fd, owner, group);
-      if (result == 0 || errno != ENOSYS)
-	return result;
-
-      __set_errno (saved_errno);
-      __libc_missing_32bit_uids = 1;
-    }
-# endif /* __NR_fchown32 */
-
-  if (((owner + 1) > (uid_t) ((__kernel_uid_t) -1U))
-      || ((group + 1) > (gid_t) ((__kernel_gid_t) -1U)))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  return INLINE_SYSCALL (fchown, 3, fd, owner, group);
-#endif
 }
 
 weak_alias (__fchown, fchown)

sysdeps/unix/sysv/linux/i386/fchownat.c

@@ -83,7 +83,6 @@ fchownat (int fd, const char *file, uid_t owner, gid_t group, int flag)
       file = buf;
     }
 
-# if __ASSUME_32BITUIDS > 0
   INTERNAL_SYSCALL_DECL (err);
 
   if (flag & AT_SYMLINK_NOFOLLOW)
@@ -98,15 +97,6 @@ fchownat (int fd, const char *file, uid_t owner, gid_t group, int flag)
       __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf);
       return -1;
     }
-# else
-  /* Don't inline the rest to avoid unnecessary code duplication.  */
-  if (flag & AT_SYMLINK_NOFOLLOW)
-    result = __lchown (file, owner, group);
-  else
-    result = __chown (file, owner, group);
-  if (result < 0)
-    __atfct_seterrno (errno, fd, buf);
-# endif
 
   return result;