Remove pre-2.4.1 Linux kernel support.

8 files changed, 58 insertions, 80 deletions

diff --git a/ChangeLog b/ChangeLog
index db8e18787f..c368d11f51 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,25 @@
+2012-07-12  Joseph Myers  <joseph@codesourcery.com>
+
+	[BZ #13717]
+	* sysdeps/unix/sysv/linux/configure.in (arch_minimum_kernel):
+	Change to 2.4.1 where previously 2.4.0.
+	* sysdeps/unix/sysv/linux/configure: Regenerated.
+	* sysdeps/unix/sysv/linux/kernel-features.h [!__sh__]
+	(__ASSUME_ST_INO_64_BIT): Do not condition definition on kernel
+	version.
+	[__i386__ || __sparc__] (__ASSUME_FCNTL64): Likewise.
+	(__ASSUME_AT_CLKTCK): Remove.
+	(__ASSUME_AT_PAGESIZE): Likewise.
+	(__ASSUME_AT_XID): Likewise.
+	(__ASSUME_GETDENTS64_SYSCALL): Define unconditionally.
+	[__i386__] (__ASSUME_VFORK_SYSCALL): Define unconditionally.
+	* sysdeps/unix/sysv/linux/ldsodefs.h (HAVE_AUX_XID): Define
+	unconditionally.
+	(HAVE_AUX_PAGESIZE): Likewise.
+	* sysdeps/unix/sysv/linux/prof-freq.c (__profile_frequency)
+	[__ASSUME_AT_CLKTCK]: Make code unconditional.
+	[!__ASSUME_AT_CLKTCK]: Remove conditional code.
+
 2012-07-12  Jeroen van Bemmel  <jvb127@gmail.com>
 
 	[BZ #14307]
diff --git a/ports/ChangeLog.arm b/ports/ChangeLog.arm
index 1aec3d4612..881682b24c 100644
--- a/ports/ChangeLog.arm
+++ b/ports/ChangeLog.arm
@@ -1,3 +1,10 @@
+2012-07-12  Joseph Myers  <joseph@codesourcery.com>
+
+	* sysdeps/unix/sysv/linux/arm/kernel-features.h
+	(__ASSUME_MMAP2_SYSCALL): Define unconditionally.
+	(__ASSUME_STAT64_SYSCALL): Likewise.
+	(__ASSUME_VFORK_SYSCALL): Likewise.
+
 2012-07-10  Joseph Myers  <joseph@codesourcery.com>
 
 	* sysdeps/arm/sysdep.h (ENTRY): Change ASM_GLOBAL_DIRECTIVE to
diff --git a/ports/sysdeps/unix/sysv/linux/arm/kernel-features.h b/ports/sysdeps/unix/sysv/linux/arm/kernel-features.h
index 74d549a996..90c59efead 100644
--- a/ports/sysdeps/unix/sysv/linux/arm/kernel-features.h
+++ b/ports/sysdeps/unix/sysv/linux/arm/kernel-features.h
@@ -24,10 +24,8 @@
 
 /* On ARM the mmap2/stat64/lstat64/fstat64 syscalls were introduced in
    2.3.35.  */
-#if __LINUX_KERNEL_VERSION >= 131875
-# define __ASSUME_MMAP2_SYSCALL		1
-# define __ASSUME_STAT64_SYSCALL	1
-#endif
+#define __ASSUME_MMAP2_SYSCALL		1
+#define __ASSUME_STAT64_SYSCALL	1
 
 /* Arm got fcntl64 in 2.4.4.  */
 #if __LINUX_KERNEL_VERSION >= 132100
@@ -35,9 +33,7 @@
 #endif
 
 /* The vfork syscall on arm was definitely available in 2.4.  */
-#if __LINUX_KERNEL_VERSION >= 132097
-# define __ASSUME_VFORK_SYSCALL		1
-#endif
+#define __ASSUME_VFORK_SYSCALL		1
 
 /* The signal frame layout changed in 2.6.18.  */
 #if __LINUX_KERNEL_VERSION >= 132626
diff --git a/sysdeps/unix/sysv/linux/configure b/sysdeps/unix/sysv/linux/configure
index ef2f715782..b86b763ad7 100644
--- a/sysdeps/unix/sysv/linux/configure
+++ b/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=2.4.0
+    arch_minimum_kernel=2.4.1
     ;;
   powerpc/powerpc32)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.4.0
+    arch_minimum_kernel=2.4.1
     ;;
   powerpc/powerpc64)
     arch_minimum_kernel=2.4.21
     ;;
   s390/s390-32)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.4.0
+    arch_minimum_kernel=2.4.1
     ;;
   s390/s390-64)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.4.0
+    arch_minimum_kernel=2.4.1
     ;;
   sh*)
-    arch_minimum_kernel=2.4.0
+    arch_minimum_kernel=2.4.1
     libc_cv_gcc_unwind_find_fde=yes
     ;;
   sparc/sparc64*)
@@ -311,10 +311,10 @@ case "$machine" in
     ;;
   sparc*)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.4.0
+    arch_minimum_kernel=2.4.1
     ;;
   *)
-    arch_minimum_kernel=2.4.0
+    arch_minimum_kernel=2.4.1
     ;;
 esac
 if test -n "$minimum_kernel"; then
diff --git a/sysdeps/unix/sysv/linux/configure.in b/sysdeps/unix/sysv/linux/configure.in
index c3ec328b9e..05cf3bc95e 100644
--- a/sysdeps/unix/sysv/linux/configure.in
+++ b/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=2.4.0
+    arch_minimum_kernel=2.4.1
     ;;
   powerpc/powerpc32)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.4.0
+    arch_minimum_kernel=2.4.1
     ;;
   powerpc/powerpc64)
     arch_minimum_kernel=2.4.21
     ;;
   s390/s390-32)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.4.0
+    arch_minimum_kernel=2.4.1
     ;;
   s390/s390-64)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.4.0
+    arch_minimum_kernel=2.4.1
     ;;
   sh*)
-    arch_minimum_kernel=2.4.0
+    arch_minimum_kernel=2.4.1
     libc_cv_gcc_unwind_find_fde=yes
     ;;
   sparc/sparc64*)
@@ -68,10 +68,10 @@ case "$machine" in
     ;;
   sparc*)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.4.0
+    arch_minimum_kernel=2.4.1
     ;;
   *)
-    arch_minimum_kernel=2.4.0
+    arch_minimum_kernel=2.4.1
     ;;
 esac
 if test -n "$minimum_kernel"; then
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index 4d333e81ec..6e64defba4 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -76,27 +76,18 @@
 # define __ASSUME_STAT64_SYSCALL	1
 #endif
 
-/* The changed st_ino field appeared in 2.4.0-test6.  But we cannot
-   distinguish this version from other 2.4.0 releases.  Therefore play
-   save and assume it available is for 2.4.1 and up.  However, SH is lame,
+/* The changed st_ino field appeared in 2.4.0-test6.  However, SH is lame,
    and still does not have a 64-bit inode field.  */
-#if __LINUX_KERNEL_VERSION >= 132097 && !defined __sh__
+#ifndef __sh__
 # define __ASSUME_ST_INO_64_BIT		1
 #endif
 
 /* To support locking of large files a new fcntl() syscall was introduced
-   in 2.4.0-test7.  We test for 2.4.1 for the earliest version we know
-   the syscall is available.  */
-#if __LINUX_KERNEL_VERSION >= 132097 && (defined __i386__ || defined __sparc__)
+   in 2.4.0-test7.  */
+#if defined __i386__ || defined __sparc__
 # define __ASSUME_FCNTL64		1
 #endif
 
-/* The AT_CLKTCK auxiliary vector entry was introduction in the 2.4.0
-   series.  */
-#if __LINUX_KERNEL_VERSION >= 132097
-# define __ASSUME_AT_CLKTCK		1
-#endif
-
 /* Arm got fcntl64 in 2.4.4, PowerPC and SH have it also in 2.4.4 (I
    don't know when it got introduced).  But PowerPC64 does not support
    separate FCNTL64 call, FCNTL is already 64-bit */
@@ -106,23 +97,9 @@
 # define __ASSUME_FCNTL64		1
 #endif
 
-/* The getdents64 syscall was introduced in 2.4.0-test7.  We test for
-   2.4.1 for the earliest version we know the syscall is available.  */
-#if __LINUX_KERNEL_VERSION >= 132097
-# define __ASSUME_GETDENTS64_SYSCALL	1
-#endif
-
-/* Starting with one of the 2.4.0 pre-releases the Linux kernel passes
-   up the page size information.  */
-#if __LINUX_KERNEL_VERSION >= 132097
-# define __ASSUME_AT_PAGESIZE		1
-#endif
-
-/* Starting with at least 2.4.0 the kernel passes the uid/gid unconditionally
-   up to the child.  */
-#if __LINUX_KERNEL_VERSION >= 132097
-# define __ASSUME_AT_XID		1
-#endif
+/* The getdents64 syscall was introduced in 2.4.0-test7 (but later for
+   MIPS n32).  */
+#define __ASSUME_GETDENTS64_SYSCALL	1
 
 /* Starting with 2.4.5 kernels PPC passes the AUXV in the standard way
    and the vfork syscall made it into the official kernel.  */
@@ -164,7 +141,7 @@
 #endif
 
 /* The vfork syscall on x86 and arm was definitely available in 2.4.  */
-#if __LINUX_KERNEL_VERSION >= 132097 && defined __i386__
+#ifdef __i386__
 # define __ASSUME_VFORK_SYSCALL		1
 #endif
 
diff --git a/sysdeps/unix/sysv/linux/ldsodefs.h b/sysdeps/unix/sysv/linux/ldsodefs.h
index d295b96718..50f3e2b644 100644
--- a/sysdeps/unix/sysv/linux/ldsodefs.h
+++ b/sysdeps/unix/sysv/linux/ldsodefs.h
@@ -1,5 +1,5 @@
 /* Run-time dynamic linker data structures for loaded ELF shared objects.
-   Copyright (C) 2001, 2002, 2003, 2006, 2009, 2010 Free Software Foundation, Inc.
+   Copyright (C) 2001-2012 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
@@ -37,9 +37,7 @@ extern void _dl_non_dynamic_init (void) internal_function;
 
 /* We can assume that the kernel always provides the AT_UID, AT_EUID,
    AT_GID, and AT_EGID values in the auxiliary vector from 2.4.0 or so on.  */
-#if __ASSUME_AT_XID
-# define HAVE_AUX_XID
-#endif
+#define HAVE_AUX_XID
 
 /* We can assume that the kernel always provides the AT_SECURE value
    in the auxiliary vector from 2.5.74 or so on.  */
@@ -49,9 +47,7 @@ extern void _dl_non_dynamic_init (void) internal_function;
 
 /* Starting with one of the 2.4.0 pre-releases the Linux kernel passes
    up the page size information.  */
-#if __ASSUME_AT_PAGESIZE
-# define HAVE_AUX_PAGESIZE
-#endif
+#define HAVE_AUX_PAGESIZE
 
 /* Accept binaries which identify the binary as using Linux extensions.  */
 #define VALID_ELF_HEADER(hdr,exp,size)	(memcmp (hdr, exp, size) == 0	\
diff --git a/sysdeps/unix/sysv/linux/prof-freq.c b/sysdeps/unix/sysv/linux/prof-freq.c
index e50731cdd7..b0f2553263 100644
--- a/sysdeps/unix/sysv/linux/prof-freq.c
+++ b/sysdeps/unix/sysv/linux/prof-freq.c
@@ -1,5 +1,5 @@
 /* Determine realtime clock frequency.
-   Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2003-2012 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
@@ -25,26 +25,6 @@
 int
 __profile_frequency (void)
 {
-#ifdef __ASSUME_AT_CLKTCK
   return GLRO(dl_clktck);
-#else
-  if (GLRO(dl_clktck) != 0)
-    return GLRO(dl_clktck);
-
-  struct itimerval tim;
-
-  tim.it_interval.tv_sec = 0;
-  tim.it_interval.tv_usec = 1;
-  tim.it_value.tv_sec = 0;
-  tim.it_value.tv_usec = 0;
-
-  __setitimer (ITIMER_REAL, &tim, 0);
-  __setitimer (ITIMER_REAL, 0, &tim);
-
-  if (tim.it_interval.tv_usec < 2)
-    return 0;
-
-  return 1000000 / tim.it_interval.tv_usec;
-#endif
 }
 libc_hidden_def (__profile_frequency)