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[Commits] r19972 - in /fsf/trunk/libc: ./ elf/ hurd/ nptl/ ports/ ports/sysdeps/ia64/bits/ ports/sysdeps/m68k/ ports/sysdeps/unix/sysv...
- To: commits@xxxxxxxxxx
- Subject: [Commits] r19972 - in /fsf/trunk/libc: ./ elf/ hurd/ nptl/ ports/ ports/sysdeps/ia64/bits/ ports/sysdeps/m68k/ ports/sysdeps/unix/sysv...
- From: eglibc@xxxxxxxxxx
- Date: Sat, 04 Aug 2012 00:01:42 -0000
Author: eglibc
Date: Sat Aug 4 00:01:41 2012
New Revision: 19972
Log:
Import glibc-mainline for 2012-08-04
Added:
fsf/trunk/libc/sysdeps/generic/eloop-threshold.h
fsf/trunk/libc/sysdeps/mach/hurd/eloop-threshold.h
fsf/trunk/libc/sysdeps/mach/hurd/sysconf.c
Modified:
fsf/trunk/libc/ChangeLog
fsf/trunk/libc/NEWS
fsf/trunk/libc/README
fsf/trunk/libc/elf/chroot_canon.c
fsf/trunk/libc/hurd/lookup-retry.c
fsf/trunk/libc/nptl/ChangeLog
fsf/trunk/libc/nptl/nptl-init.c
fsf/trunk/libc/ports/ChangeLog.alpha
fsf/trunk/libc/ports/ChangeLog.ia64
fsf/trunk/libc/ports/ChangeLog.m68k
fsf/trunk/libc/ports/sysdeps/ia64/bits/byteswap-16.h
fsf/trunk/libc/ports/sysdeps/ia64/bits/byteswap.h
fsf/trunk/libc/ports/sysdeps/m68k/asm-syntax.h
fsf/trunk/libc/ports/sysdeps/m68k/sysdep.h
fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/alpha/configure
fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/alpha/configure.in
fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/ia64/configure
fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/ia64/configure.in
fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/ia64/kernel-features.h
fsf/trunk/libc/stdlib/canonicalize.c
fsf/trunk/libc/sysdeps/mach/hurd/bits/local_lim.h
fsf/trunk/libc/sysdeps/mach/hurd/sys/param.h
fsf/trunk/libc/sysdeps/unix/sysv/linux/configure
fsf/trunk/libc/sysdeps/unix/sysv/linux/configure.in
fsf/trunk/libc/sysdeps/unix/sysv/linux/dl-sysdep.c
fsf/trunk/libc/sysdeps/unix/sysv/linux/kernel-features.h
fsf/trunk/libc/sysdeps/unix/sysv/linux/ldsodefs.h
fsf/trunk/libc/sysdeps/unix/sysv/linux/shm_open.c
Modified: fsf/trunk/libc/ChangeLog
==============================================================================
--- fsf/trunk/libc/ChangeLog (original)
+++ fsf/trunk/libc/ChangeLog Sat Aug 4 00:01:41 2012
@@ -1,3 +1,54 @@
+2012-08-03 Joseph Myers <joseph@xxxxxxxxxxxxxxxx>
+
+ * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_AT_SECURE):
+ Remove.
+ (__ASSUME_CORRECT_SI_PID): Likewise.
+ (__ASSUME_BRK_PAGE_ROUNDED): Likewise.
+ (__ASSUME_TMPFS_NAME): Likewise.
+ * sysdeps/unix/sysv/linux/dl-sysdep.c (frob_brk)
+ [!__ASSUME_BRK_PAGE_ROUNDED]: Remove conditional code.
+ * sysdeps/unix/sysv/linux/ldsodefs.h [__ASSUME_AT_SECURE]
+ (HAVE_AUX_SECURE): Make definition unconditional.
+ * sysdeps/unix/sysv/linux/shm_open.c (where_is_shmfs)
+ [!__ASSUME_TMPFS_NAME]: Remove conditional code.
+
+2012-08-03 Roland McGrath <roland@xxxxxxxxxxxxx>
+
+ * sysdeps/mach/hurd/sys/param.h (MAXSYMLINKS): Macro removed.
+ * sysdeps/mach/hurd/bits/local_lim.h (SYMLOOP_MAX): Macro removed.
+ * sysdeps/mach/hurd/eloop-threshold.h: New file.
+ * hurd/lookup-retry.c (__hurd_file_name_lookup_retry): Use
+ __eloop_threshold instead of SYMLOOP_MAX.
+
+ * sysdeps/generic/eloop-threshold.h: New file.
+ * stdlib/canonicalize.c (__realpath): Use __eloop_threshold instead
+ of MAXSYMLINKS.
+ * elf/chroot_canon.c (chroot_canon): Likewise.
+
+2012-08-03 Joseph Myers <joseph@xxxxxxxxxxxxxxxx>
+
+ [BZ #13717]
+ * sysdeps/unix/sysv/linux/configure.in (arch_minimum_kernel):
+ Change to 2.6.0 everywhere.
+ * sysdeps/unix/sysv/linux/configure: Regenerated.
+ * sysdeps/unix/sysv/linux/kernel-features.h
+ (__ASSUME_SET_THREAD_AREA_SYSCALL): Remove.
+ (__ASSUME_CLONE_THREAD_FLAGS): Condition on architectures, not
+ kernel versions.
+ (__ASSUME_POSIX_TIMERS): Define unconditionally.
+ (__ASSUME_FUTEX_REQUEUE): Remove.
+ (__ASSUME_STATFS64): Define unconditionally.
+ (__ASSUME_AT_SECURE): Likewise.
+ (__ASSUME_CORRECT_SI_PID): Likewise.
+ (__ASSUME_TGKILL): Define without depending on kernel version for
+ i386.
+ (__ASSUME_UTIMES): Likewise.
+ (__ASSUME_SWAPCONTEXT_SYSCALL): Condition on architecture, not
+ kernel version.
+ (__ASSUME_BRK_PAGE_ROUNDED): Define unconditionally.
+ (__ASSUME_TMPFS_NAME): Likewise.
+ * README: Update reference to Linux kernel versions.
+
2012-08-02 Marek Polacek <polacek@xxxxxxxxxx>
[BZ#14150]
Modified: fsf/trunk/libc/NEWS
==============================================================================
--- fsf/trunk/libc/NEWS (original)
+++ fsf/trunk/libc/NEWS Sat Aug 4 00:01:41 2012
@@ -9,8 +9,8 @@
* The following bugs are resolved with this release:
- 6778, 6808, 14042, 14150, 14151, 14154, 14157, 14173, 14283, 14298, 14328,
- 14331, 14337, 14347, 14349
+ 6778, 6808, 13717, 14042, 14150, 14151, 14154, 14157, 14173, 14283, 14298,
+ 14307, 14328, 14331, 14336, 14337, 14347, 14349
* Support for STT_GNU_IFUNC symbols added for s390 and s390x.
Optimized versions of memcpy, memset, and memcmp added for System z10 and
@@ -23,6 +23,9 @@
* SystemTap static probes have been added into the dynamic linker.
Implemented by Gary Benson.
+
+* The minimum Linux kernel version that this version of the GNU C Library
+ can be used with is 2.6.0.
Version 2.16
Modified: fsf/trunk/libc/README
==============================================================================
--- fsf/trunk/libc/README (original)
+++ fsf/trunk/libc/README Sat Aug 4 00:01:41 2012
@@ -16,14 +16,8 @@
GNU/Hurd support requires out-of-tree patches that will eventually be
incorporated into an official GNU C Library release.
-When working with Linux kernels, the GNU C Library version from
-version 2.4 on is intended primarily for use with Linux kernel version
-2.6.0 and later. We only support using the NPTL implementation of
-pthreads, which is now the default configuration. The library is
-unlikely to build without NPTL, or to work on Linux kernels prior to
-2.6. The old LinuxThreads add-on implementation of pthreads for older
-Linux kernels is no longer supported, and we are not distributing it
-with this release.
+When working with Linux kernels, this version of the GNU C Library
+requires Linux kernel version 2.6.0 or later.
All Linux kernel versions prior to 2.6.16 are known to have some bugs that
may cause some of the tests related to pthreads in "make check" to fail.
Modified: fsf/trunk/libc/elf/chroot_canon.c
==============================================================================
--- fsf/trunk/libc/elf/chroot_canon.c (original)
+++ fsf/trunk/libc/elf/chroot_canon.c Sat Aug 4 00:01:41 2012
@@ -1,6 +1,5 @@
/* Return the canonical absolute name of a given file inside chroot.
- Copyright (C) 1996,1997,1998,1999,2000,2001,2004,2005,2010,2011
- Free Software Foundation, Inc.
+ Copyright (C) 1996-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
This program is free software; you can redistribute it and/or modify
@@ -20,12 +19,12 @@
#include <string.h>
#include <unistd.h>
#include <limits.h>
-#include <sys/param.h>
#include <sys/stat.h>
#include <errno.h>
#include <stddef.h>
#include <stdint.h>
+#include <eloop-threshold.h>
#include <ldconfig.h>
#ifndef PATH_MAX
@@ -127,7 +126,7 @@
char *buf = alloca (PATH_MAX);
size_t len;
- if (++num_links > MAXSYMLINKS)
+ if (++num_links > __eloop_threshold ())
{
__set_errno (ELOOP);
goto error;
Modified: fsf/trunk/libc/hurd/lookup-retry.c
==============================================================================
--- fsf/trunk/libc/hurd/lookup-retry.c (original)
+++ fsf/trunk/libc/hurd/lookup-retry.c Sat Aug 4 00:01:41 2012
@@ -24,6 +24,7 @@
#include <fcntl.h>
#include <string.h>
#include <_itoa.h>
+#include <eloop-threshold.h>
/* Translate the error from dir_lookup into the error the user sees. */
static inline error_t
@@ -103,7 +104,7 @@
/* Fall through. */
case FS_RETRY_NORMAL:
- if (nloops++ >= SYMLOOP_MAX)
+ if (nloops++ >= __eloop_threshold ())
{
__mach_port_deallocate (__mach_task_self (), *result);
return ELOOP;
@@ -180,7 +181,7 @@
dirport = INIT_PORT_CRDIR;
if (*result != MACH_PORT_NULL)
__mach_port_deallocate (__mach_task_self (), *result);
- if (nloops++ >= SYMLOOP_MAX)
+ if (nloops++ >= __eloop_threshold ())
return ELOOP;
file_name = &retryname[1];
break;
Modified: fsf/trunk/libc/nptl/ChangeLog
==============================================================================
--- fsf/trunk/libc/nptl/ChangeLog (original)
+++ fsf/trunk/libc/nptl/ChangeLog Sat Aug 4 00:01:41 2012
@@ -1,3 +1,9 @@
+2012-08-03 Joseph Myers <joseph@xxxxxxxxxxxxxxxx>
+
+ * nptl-init.c (sigcancel_handler) [__ASSUME_CORRECT_SI_PID]: Make
+ code unconditional.
+ (sighandler_setxid) [__ASSUME_CORRECT_SI_PID]: Likewise.
+
2012-07-28 Siddhesh Poyarekar <siddhesh@xxxxxxxxxx>
* tst-pthread-getattr.c (MAX_STACK_SIZE): New macro.
Modified: fsf/trunk/libc/nptl/nptl-init.c
==============================================================================
--- fsf/trunk/libc/nptl/nptl-init.c (original)
+++ fsf/trunk/libc/nptl/nptl-init.c Sat Aug 4 00:01:41 2012
@@ -172,24 +172,18 @@
static void
sigcancel_handler (int sig, siginfo_t *si, void *ctx)
{
-#ifdef __ASSUME_CORRECT_SI_PID
/* Determine the process ID. It might be negative if the thread is
in the middle of a fork() call. */
pid_t pid = THREAD_GETMEM (THREAD_SELF, pid);
if (__builtin_expect (pid < 0, 0))
pid = -pid;
-#endif
/* Safety check. It would be possible to call this function for
other signals and send a signal from another process. This is not
correct and might even be a security problem. Try to catch as
many incorrect invocations as possible. */
if (sig != SIGCANCEL
-#ifdef __ASSUME_CORRECT_SI_PID
- /* Kernels before 2.5.75 stored the thread ID and not the process
- ID in si_pid so we skip this test. */
|| si->si_pid != pid
-#endif
|| si->si_code != SI_TKILL)
return;
@@ -235,24 +229,18 @@
static void
sighandler_setxid (int sig, siginfo_t *si, void *ctx)
{
-#ifdef __ASSUME_CORRECT_SI_PID
/* Determine the process ID. It might be negative if the thread is
in the middle of a fork() call. */
pid_t pid = THREAD_GETMEM (THREAD_SELF, pid);
if (__builtin_expect (pid < 0, 0))
pid = -pid;
-#endif
/* Safety check. It would be possible to call this function for
other signals and send a signal from another process. This is not
correct and might even be a security problem. Try to catch as
many incorrect invocations as possible. */
if (sig != SIGSETXID
-#ifdef __ASSUME_CORRECT_SI_PID
- /* Kernels before 2.5.75 stored the thread ID and not the process
- ID in si_pid so we skip this test. */
|| si->si_pid != pid
-#endif
|| si->si_code != SI_TKILL)
return;
Modified: fsf/trunk/libc/ports/ChangeLog.alpha
==============================================================================
--- fsf/trunk/libc/ports/ChangeLog.alpha (original)
+++ fsf/trunk/libc/ports/ChangeLog.alpha Sat Aug 4 00:01:41 2012
@@ -1,3 +1,9 @@
+2012-08-03 Joseph Myers <joseph@xxxxxxxxxxxxxxxx>
+
+ * sysdeps/unix/sysv/linux/alpha/configure.in
+ (arch_minimum_kernel): Remove.
+ * sysdeps/unix/sysv/linux/alpha/configure: Regenerated.
+
2012-07-26 Joseph Myers <joseph@xxxxxxxxxxxxxxxx>
* sysdeps/alpha/tst-audit.h (int_retval): Define.
Modified: fsf/trunk/libc/ports/ChangeLog.ia64
==============================================================================
--- fsf/trunk/libc/ports/ChangeLog.ia64 (original)
+++ fsf/trunk/libc/ports/ChangeLog.ia64 Sat Aug 4 00:01:41 2012
@@ -1,3 +1,16 @@
+2012-08-03 Mike Frysinger <vapier@xxxxxxxxxx>
+
+ [BZ #12194]
+ * sysdeps/ia64/bits/byteswap-16.h (__bswap_16): Avoid -Wconversion
+ warning.
+ * sysdeps/ia64/bits/byteswap.h (__bswap_constant_16): Likewise.
+
+2012-08-03 Joseph Myers <joseph@xxxxxxxxxxxxxxxx>
+
+ * sysdeps/unix/sysv/linux/ia64/configure.in (arch_minimum_kernel):
+ Remove.
+ * sysdeps/unix/sysv/linux/ia64/configure: Regenerated.
+
2012-07-26 Andreas Jaeger <aj@xxxxxxx>
* sysdeps/unix/sysv/linux/ia64/sys/ptrace.h (__ptrace_eventcodes):
Modified: fsf/trunk/libc/ports/ChangeLog.m68k
==============================================================================
--- fsf/trunk/libc/ports/ChangeLog.m68k (original)
+++ fsf/trunk/libc/ports/ChangeLog.m68k Sat Aug 4 00:01:41 2012
@@ -1,3 +1,12 @@
+2012-08-03 Andreas Schwab <schwab@xxxxxxxxxxxxxx>
+
+ * sysdeps/m68k/sysdep.h (ALIGNARG, ASM_TYPE_DIRECTIVE)
+ (ASM_SIZE_DIRECTIVE): Remove.
+ (ENTRY, END): Use .p2align. Use .type and .size instead of
+ ASM_TYPE_DIRECTIVE and ASM_SIZE_DIRECTIVE.
+ * sysdeps/m68k/asm-syntax.h (ALIGNARG, PROLOG, EPILOG, ALIGN)
+ (GLOBL): Remove unused macros.
+
2012-08-01 Joseph Myers <joseph@xxxxxxxxxxxxxxxx>
* sysdeps/unix/sysv/linux/m68k/kernel-features.h
Modified: fsf/trunk/libc/ports/sysdeps/ia64/bits/byteswap-16.h
==============================================================================
--- fsf/trunk/libc/ports/sysdeps/ia64/bits/byteswap-16.h (original)
+++ fsf/trunk/libc/ports/sysdeps/ia64/bits/byteswap-16.h Sat Aug 4 00:01:41 2012
@@ -23,7 +23,7 @@
#if defined __GNUC__ && __GNUC__ >= 2
# define __bswap_16(x) \
(__extension__ \
- ({ register unsigned short int __v, __x = (x); \
+ ({ register unsigned short int __v, __x = (unsigned short int) (x); \
if (__builtin_constant_p (x)) \
__v = __bswap_constant_16 (__x); \
else \
Modified: fsf/trunk/libc/ports/sysdeps/ia64/bits/byteswap.h
==============================================================================
--- fsf/trunk/libc/ports/sysdeps/ia64/bits/byteswap.h (original)
+++ fsf/trunk/libc/ports/sysdeps/ia64/bits/byteswap.h Sat Aug 4 00:01:41 2012
@@ -25,7 +25,7 @@
/* Swap bytes in 16 bit value. */
#define __bswap_constant_16(x) \
- ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))
+ ((unsigned short int)((((x) >> 8) & 0xff) | (((x) & 0xff) << 8)))
/* Get __bswap_16. */
#include <bits/byteswap-16.h>
Modified: fsf/trunk/libc/ports/sysdeps/m68k/asm-syntax.h
==============================================================================
--- fsf/trunk/libc/ports/sysdeps/m68k/asm-syntax.h (original)
+++ fsf/trunk/libc/ports/sysdeps/m68k/asm-syntax.h Sat Aug 4 00:01:41 2012
@@ -1,5 +1,5 @@
/* Definitions for 68k syntax variations.
- Copyright (C) 1992, 1994, 1996, 1997, 2012 Free Software Foundation, Inc.
+ Copyright (C) 1992-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library. Its master source is NOT part of
the C library, however. The master source lives in the GNU MP Library.
@@ -17,11 +17,6 @@
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
-/* ELF uses byte-counts for .align, most others use log2 of count of bytes. */
-#define ALIGNARG(log2) 1<<log2
-/* For ELF we need the `.type' directive to make shared libs work right. */
-#define PROLOG(name) .type name,@function
-#define EPILOG(name) .size name,.-name
/* For ELF we need to prefix register names and local labels. */
#define R_(r) %##r
#define R(r) R_(r)
@@ -35,8 +30,6 @@
#define MEM_PREDEC(memory_base)R(memory_base)@-
#define MEM_POSTINC(memory_base)R(memory_base)@+
#define TEXT .text
-#define ALIGN .even
-#define GLOBL .globl
/* Use variable sized opcodes. */
#define bcc jcc
#define bcs jcs
@@ -56,8 +49,6 @@
#define MEM_INDX1_(base,idx,size_suffix,scale)(R(base),R(idx##.##size_suffix*scale))
#define MEM_INDX1(base,idx,size_suffix,scale)MEM_INDX1_(base,idx,size_suffix,scale)
#define TEXT .text
-#define ALIGN .align ALIGNARG(2)
-#define GLOBL .globl
#define bcc jbcc
#define bcs jbcs
#define bls jbls
Modified: fsf/trunk/libc/ports/sysdeps/m68k/sysdep.h
==============================================================================
--- fsf/trunk/libc/ports/sysdeps/m68k/sysdep.h (original)
+++ fsf/trunk/libc/ports/sysdeps/m68k/sysdep.h Sat Aug 4 00:01:41 2012
@@ -1,5 +1,5 @@
/* Assembler macros for m68k.
- Copyright (C) 1998, 2003, 2010, 2012 Free Software Foundation, Inc.
+ Copyright (C) 1998-2012 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
@@ -20,14 +20,6 @@
#ifdef __ASSEMBLER__
-/* Syntactic details of assembler. */
-
-/* ELF uses byte-counts for .align, most others use log2 of count of bytes. */
-# define ALIGNARG(log2) 1<<log2
-/* For ELF we need the `.type' directive to make shared libs work right. */
-# define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg
-# define ASM_SIZE_DIRECTIVE(name) .size name,.-name
-
/* Define an entry point visible from C.
There is currently a bug in gdb which prevents us from specifying
@@ -35,8 +27,8 @@
the current source file. */
# define ENTRY(name) \
.globl C_SYMBOL_NAME(name); \
- ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function); \
- .align ALIGNARG(2); \
+ .type C_SYMBOL_NAME(name),@function; \
+ .p2align 2; \
C_LABEL(name) \
cfi_startproc; \
CALL_MCOUNT
@@ -44,7 +36,7 @@
# undef END
# define END(name) \
cfi_endproc; \
- ASM_SIZE_DIRECTIVE(name)
+ .size name,.-name
/* If compiled for profiling, call `_mcount' at the start of each function. */
Modified: fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/alpha/configure
==============================================================================
--- fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/alpha/configure (original)
+++ fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/alpha/configure Sat Aug 4 00:01:41 2012
@@ -1,11 +1,5 @@
# This file is generated from configure.in by Autoconf. DO NOT EDIT!
# Local configure fragment for sysdeps/unix/sysv/linux/alpha
-# There are several bits that no longer compile cleanly without
-# realtime signal support (ver 2.2.0). Given that we also now
-# require TLS (ver 2.6.0), it seems pointless to fix them.
-# ??? Surely this should now be the generic default.
-arch_minimum_kernel=2.6.0
-
# We did historically export the unwinder from glibc.
libc_cv_gcc_unwind_find_fde=yes
Modified: fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/alpha/configure.in
==============================================================================
--- fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/alpha/configure.in (original)
+++ fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/alpha/configure.in Sat Aug 4 00:01:41 2012
@@ -1,11 +1,5 @@
GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
# Local configure fragment for sysdeps/unix/sysv/linux/alpha
-# There are several bits that no longer compile cleanly without
-# realtime signal support (ver 2.2.0). Given that we also now
-# require TLS (ver 2.6.0), it seems pointless to fix them.
-# ??? Surely this should now be the generic default.
-arch_minimum_kernel=2.6.0
-
# We did historically export the unwinder from glibc.
libc_cv_gcc_unwind_find_fde=yes
Modified: fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/ia64/configure
==============================================================================
--- fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/ia64/configure (original)
+++ fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/ia64/configure Sat Aug 4 00:01:41 2012
@@ -1,10 +1,4 @@
# This file is generated from configure.in by Autoconf. DO NOT EDIT!
# Local configure fragment for sysdeps/unix/sysv/linux/ia64
-# There are several bits that no longer compile cleanly without
-# realtime signal support (ver 2.2.0). Given that we also now
-# require TLS (ver 2.6.0), it seems pointless to fix them.
-# ??? Surely this should now be the generic default.
-arch_minimum_kernel=2.6.0
-
ldd_rewrite_script=$dir/ldd-rewrite.sed
Modified: fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/ia64/configure.in
==============================================================================
--- fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/ia64/configure.in (original)
+++ fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/ia64/configure.in Sat Aug 4 00:01:41 2012
@@ -1,10 +1,4 @@
GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
# Local configure fragment for sysdeps/unix/sysv/linux/ia64
-# There are several bits that no longer compile cleanly without
-# realtime signal support (ver 2.2.0). Given that we also now
-# require TLS (ver 2.6.0), it seems pointless to fix them.
-# ??? Surely this should now be the generic default.
-arch_minimum_kernel=2.6.0
-
ldd_rewrite_script=$dir/ldd-rewrite.sed
Modified: fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/ia64/kernel-features.h
==============================================================================
--- fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/ia64/kernel-features.h (original)
+++ fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/ia64/kernel-features.h Sat Aug 4 00:01:41 2012
@@ -22,9 +22,7 @@
/* The late 2.5 kernels saw a lot of new CLONE_* flags. Summarize
their availability with one define. */
-#if __LINUX_KERNEL_VERSION >= 132416
-# define __ASSUME_CLONE_THREAD_FLAGS 1
-#endif
+#define __ASSUME_CLONE_THREAD_FLAGS 1
/* The utimes syscall has been available for some architectures
forever. */
Modified: fsf/trunk/libc/stdlib/canonicalize.c
==============================================================================
--- fsf/trunk/libc/stdlib/canonicalize.c (original)
+++ fsf/trunk/libc/stdlib/canonicalize.c Sat Aug 4 00:01:41 2012
@@ -1,5 +1,5 @@
/* Return the canonical absolute name of a given file.
- Copyright (C) 1996-2002,2004,2005,2006,2008 Free Software Foundation, Inc.
+ Copyright (C) 1996-2012 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
@@ -21,11 +21,11 @@
#include <string.h>
#include <unistd.h>
#include <limits.h>
-#include <sys/param.h>
#include <sys/stat.h>
#include <errno.h>
#include <stddef.h>
+#include <eloop-threshold.h>
#include <shlib-compat.h>
/* Return the canonical absolute name of file NAME. A canonical name
@@ -166,7 +166,7 @@
char *buf = __alloca (path_max);
size_t len;
- if (++num_links > MAXSYMLINKS)
+ if (++num_links > __eloop_threshold ())
{
__set_errno (ELOOP);
goto error;
Added: fsf/trunk/libc/sysdeps/generic/eloop-threshold.h
==============================================================================
--- fsf/trunk/libc/sysdeps/generic/eloop-threshold.h (added)
+++ fsf/trunk/libc/sysdeps/generic/eloop-threshold.h Sat Aug 4 00:01:41 2012
@@ -1,0 +1,72 @@
+/* Threshold at which to diagnose ELOOP. Generic version.
+ Copyright (C) 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
+ 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
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _ELOOP_THRESHOLD_H
+#define _ELOOP_THRESHOLD_H 1
+
+#include <limits.h>
+#include <sys/param.h>
+
+/* POSIX specifies SYMLOOP_MAX as the "Maximum number of symbolic
+ links that can be reliably traversed in the resolution of a
+ pathname in the absence of a loop." This makes it a minimum that
+ we should certainly accept. But it leaves open the possibility
+ that more might sometimes work--just not "reliably".
+
+ For example, Linux implements a complex policy whereby there is a
+ small limit on the number of direct symlink traversals (a symlink
+ to a symlink to a symlink), but larger limit on the total number of
+ symlink traversals overall. Hence the SYMLOOP_MAX number should be
+ the small one, but the limit library functions enforce on users
+ should be the larger one.
+
+ So, we use the larger of the reported SYMLOOP_MAX (if any) and our
+ own constant MIN_ELOOP_THRESHOLD, below. This constant should be
+ large enough that it never rules out a file name and directory tree
+ that the underlying system (i.e. calls to 'open' et al) would
+ resolve successfully. It should be small enough that actual loops
+ are detected without a huge number of iterations. */
+
+#ifndef MIN_ELOOP_THRESHOLD
+# define MIN_ELOOP_THRESHOLD 40
+#endif
+
+/* Return the maximum number of symlink traversals to permit
+ before diagnosing ELOOP. */
+static inline unsigned int __attribute__ ((const))
+__eloop_threshold (void)
+{
+#ifdef SYMLOOP_MAX
+ const int symloop_max = SYMLOOP_MAX;
+#else
+ /* The function is marked 'const' even though we use memory and
+ call a function, because sysconf is required to return the
+ same value in every call and so it must always be safe to
+ call __eloop_threshold exactly once and reuse the value. */
+ static long int sysconf_symloop_max;
+ if (sysconf_symloop_max == 0)
+ sysconf_symloop_max = __sysconf (_SC_SYMLOOP_MAX);
+ const unsigned int symloop_max = (sysconf_symloop_max <= 0
+ ? _POSIX_SYMLOOP_MAX
+ : sysconf_symloop_max);
+#endif
+
+ return MAX (symloop_max, MIN_ELOOP_THRESHOLD);
+}
+
+#endif /* eloop-threshold.h */
Modified: fsf/trunk/libc/sysdeps/mach/hurd/bits/local_lim.h
==============================================================================
--- fsf/trunk/libc/sysdeps/mach/hurd/bits/local_lim.h (original)
+++ fsf/trunk/libc/sysdeps/mach/hurd/bits/local_lim.h Sat Aug 4 00:01:41 2012
@@ -1,5 +1,5 @@
/* Minimum guaranteed maximum values for system limits. Hurd version.
- Copyright (C) 1993,94,96,98,2002 Free Software Foundation, Inc.
+ Copyright (C) 1993-2012 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
@@ -32,14 +32,3 @@
suitable, and `sysconf' will return a number at least as large. */
#define NGROUPS_MAX 256
-
-/* The maximum number of symbolic links that are allowed in a single file
- name resolution. When a further link is encountered, the call returns
- ELOOP. This name is a GNU extension; POSIX.1 has no such limit, and BSD
- calls it MAXSYMLINKS in <sys/param.h>. (We define the name under
- _BSD_SOURCE even without _GNU_SOURCE because our <sys/param.h> uses it
- to define MAXSYMLINKS.) */
-
-#if defined __USE_GNU || defined __USE_BSD /* 1003.1a defines this */
-#define SYMLOOP_MAX 8
-#endif
Added: fsf/trunk/libc/sysdeps/mach/hurd/eloop-threshold.h
==============================================================================
--- fsf/trunk/libc/sysdeps/mach/hurd/eloop-threshold.h (added)
+++ fsf/trunk/libc/sysdeps/mach/hurd/eloop-threshold.h Sat Aug 4 00:01:41 2012
@@ -1,0 +1,37 @@
+/* Threshold at which to diagnose ELOOP. Hurd version.
+ Copyright (C) 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
+ 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
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _ELOOP_THRESHOLD_H
+#define _ELOOP_THRESHOLD_H 1
+
+/* Return the maximum number of symlink traversals to permit
+ before diagnosing ELOOP.
+
+ In the Hurd version, here we are actually setting the only policy
+ there is on the system. We use a literal number here rather than
+ defining SYMLOOP_MAX so that programs don't compile in a number
+ but instead use sysconf and the number can be changed here to
+ affect sysconf's result. */
+
+static inline unsigned int __attribute__ ((const))
+__eloop_threshold (void)
+{
+ return 32;
+}
+
+#endif /* eloop-threshold.h */
Modified: fsf/trunk/libc/sysdeps/mach/hurd/sys/param.h
==============================================================================
--- fsf/trunk/libc/sysdeps/mach/hurd/sys/param.h (original)
+++ fsf/trunk/libc/sysdeps/mach/hurd/sys/param.h Sat Aug 4 00:01:41 2012
@@ -1,4 +1,4 @@
-/* Copyright (C) 1993,1994,1995,1997,1999,2011 Free Software Foundation, Inc.
+/* Copyright (C) 1993-2012 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
@@ -83,7 +83,6 @@
#define NBBY CHAR_BIT
#define NGROUPS NGROUPS_MAX
-#define MAXSYMLINKS SYMLOOP_MAX
#define CANBSIZ MAX_CANON /* XXX ? */
/* ARG_MAX is unlimited, but we define NCARGS for BSD programs that want to
Added: fsf/trunk/libc/sysdeps/mach/hurd/sysconf.c
==============================================================================
--- fsf/trunk/libc/sysdeps/mach/hurd/sysconf.c (added)
+++ fsf/trunk/libc/sysdeps/mach/hurd/sysconf.c Sat Aug 4 00:01:41 2012
@@ -1,0 +1,26 @@
+/* Return values of system parameters. Hurd version.
+ Copyright (C) 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
+ 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
+ <http://www.gnu.org/licenses/>. */
+
+#include <limits.h>
+#include <unistd.h>
+
+#include <eloop-threshold.h>
+
+#define SYMLOOP_MAX (__eloop_threshold ())
+
+#include <sysdeps/posix/sysconf.c>
Modified: fsf/trunk/libc/sysdeps/unix/sysv/linux/configure
==============================================================================
--- fsf/trunk/libc/sysdeps/unix/sysv/linux/configure (original)
+++ fsf/trunk/libc/sysdeps/unix/sysv/linux/configure Sat Aug 4 00:01:41 2012
@@ -284,34 +284,34 @@
case "$machine" in
i386*)
libc_cv_gcc_unwind_find_fde=yes
- arch_minimum_kernel=2.4.21
+ arch_minimum_kernel=2.6.0
;;
powerpc/powerpc32)
libc_cv_gcc_unwind_find_fde=yes
- arch_minimum_kernel=2.4.21
+ arch_minimum_kernel=2.6.0
;;
s390/s390-32)
libc_cv_gcc_unwind_find_fde=yes
- arch_minimum_kernel=2.4.21
+ arch_minimum_kernel=2.6.0
;;
s390/s390-64)
libc_cv_gcc_unwind_find_fde=yes
- arch_minimum_kernel=2.4.21
+ arch_minimum_kernel=2.6.0
;;
sh*)
- arch_minimum_kernel=2.4.21
+ arch_minimum_kernel=2.6.0
libc_cv_gcc_unwind_find_fde=yes
;;
sparc/sparc64*)
libc_cv_gcc_unwind_find_fde=yes
- arch_minimum_kernel=2.4.21
+ arch_minimum_kernel=2.6.0
;;
sparc*)
libc_cv_gcc_unwind_find_fde=yes
- arch_minimum_kernel=2.4.21
+ arch_minimum_kernel=2.6.0
;;
*)
- arch_minimum_kernel=2.4.21
+ arch_minimum_kernel=2.6.0
;;
esac
if test -n "$minimum_kernel"; then
Modified: fsf/trunk/libc/sysdeps/unix/sysv/linux/configure.in
==============================================================================
--- fsf/trunk/libc/sysdeps/unix/sysv/linux/configure.in (original)
+++ fsf/trunk/libc/sysdeps/unix/sysv/linux/configure.in Sat Aug 4 00:01:41 2012
@@ -41,34 +41,34 @@
case "$machine" in
i386*)
libc_cv_gcc_unwind_find_fde=yes
- arch_minimum_kernel=2.4.21
+ arch_minimum_kernel=2.6.0
;;
powerpc/powerpc32)
libc_cv_gcc_unwind_find_fde=yes
- arch_minimum_kernel=2.4.21
+ arch_minimum_kernel=2.6.0
;;
s390/s390-32)
libc_cv_gcc_unwind_find_fde=yes
- arch_minimum_kernel=2.4.21
+ arch_minimum_kernel=2.6.0
;;
s390/s390-64)
libc_cv_gcc_unwind_find_fde=yes
- arch_minimum_kernel=2.4.21
+ arch_minimum_kernel=2.6.0
;;
sh*)
- arch_minimum_kernel=2.4.21
+ arch_minimum_kernel=2.6.0
libc_cv_gcc_unwind_find_fde=yes
;;
sparc/sparc64*)
libc_cv_gcc_unwind_find_fde=yes
- arch_minimum_kernel=2.4.21
+ arch_minimum_kernel=2.6.0
;;
sparc*)
libc_cv_gcc_unwind_find_fde=yes
- arch_minimum_kernel=2.4.21
+ arch_minimum_kernel=2.6.0
;;
*)
- arch_minimum_kernel=2.4.21
+ arch_minimum_kernel=2.6.0
;;
esac
if test -n "$minimum_kernel"; then
Modified: fsf/trunk/libc/sysdeps/unix/sysv/linux/dl-sysdep.c
==============================================================================
--- fsf/trunk/libc/sysdeps/unix/sysv/linux/dl-sysdep.c (original)
+++ fsf/trunk/libc/sysdeps/unix/sysv/linux/dl-sysdep.c Sat Aug 4 00:01:41 2012
@@ -1,5 +1,5 @@
/* Dynamic linker system dependencies for Linux.
- Copyright (C) 1995,1997,2001,2004,2005,2006, 2008 Free Software Foundation, Inc.
+ Copyright (C) 1995-2012 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
@@ -33,27 +33,6 @@
frob_brk (void)
{
__brk (0); /* Initialize the break. */
-
-#if ! __ASSUME_BRK_PAGE_ROUNDED
- /* If the dynamic linker was executed as a program, then the break may
- start immediately after our data segment. However, dl-minimal.c has
- already stolen the remainder of the page for internal allocations.
- If we don't adjust the break location recorded by the kernel, the
- normal program startup will inquire, find the value at our &_end,
- and start allocating its own data there, clobbering dynamic linker
- data structures allocated there during startup.
-
- Later Linux kernels have changed this behavior so that the initial
- break value is rounded up to the page boundary before we start. */
-
- extern char *__curbrk attribute_hidden;
- extern char _end[] attribute_hidden;
- char *const endpage = (void *) 0 + (((__curbrk - (char *) 0)
- + GLRO(dl_pagesize) - 1)
- & -GLRO(dl_pagesize));
- if (__builtin_expect (__curbrk >= _end && __curbrk < endpage, 0))
- __brk (endpage);
-#endif
}
# include <elf/dl-sysdep.c>
Modified: fsf/trunk/libc/sysdeps/unix/sysv/linux/kernel-features.h
==============================================================================
--- fsf/trunk/libc/sysdeps/unix/sysv/linux/kernel-features.h (original)
+++ fsf/trunk/libc/sysdeps/unix/sysv/linux/kernel-features.h Sat Aug 4 00:01:41 2012
@@ -92,62 +92,32 @@
# define __ASSUME_MMAP2_SYSCALL 1
#endif
-/* On x86, the set_thread_area syscall was introduced in 2.5.29, but its
- semantics was changed in 2.5.30, and again after 2.5.31. */
-#if __LINUX_KERNEL_VERSION >= 132384 && defined __i386__
-# define __ASSUME_SET_THREAD_AREA_SYSCALL 1
-#endif
-
/* The late 2.5 kernels saw a lot of new CLONE_* flags. Summarize
their availability with one define. The changes were made first
for i386 and the have to be done separately for the other archs.
For i386 we pick 2.5.50 as the first version with support.
For s390*, SPARC, PPC, x86-64, and SH we pick 2.5.64 as the first
version with support. */
-#if ((__LINUX_KERNEL_VERSION >= 132402 && defined __i386__) \
- || (__LINUX_KERNEL_VERSION >= 132416 \
- && (defined __s390__ || defined __sparc__ \
- || defined __powerpc__ || defined __x86_64__ || defined __sh__)))
+#if (defined __i386__ || defined __s390__ || defined __sparc__ \
+ || defined __powerpc__ || defined __x86_64__ || defined __sh__)
# define __ASSUME_CLONE_THREAD_FLAGS 1
#endif
/* Beginning with 2.5.63 support for realtime and monotonic clocks and
timers based on them is available. */
-#if __LINUX_KERNEL_VERSION >= 132415
-# define __ASSUME_POSIX_TIMERS 1
-#endif
+#define __ASSUME_POSIX_TIMERS 1
/* Beginning with 2.6.12 the clock and timer supports CPU clocks. */
#if __LINUX_KERNEL_VERSION >= 0x2060c
# define __ASSUME_POSIX_CPU_TIMERS 1
#endif
-/* The requeue futex functionality was introduced in 2.5.70. */
-#if __LINUX_KERNEL_VERSION >= 132422
-# define __ASSUME_FUTEX_REQUEUE 1
-#endif
-
-/* The statfs64 syscalls are available in 2.5.74. */
-#if __LINUX_KERNEL_VERSION >= 132426
-# define __ASSUME_STATFS64 1
-#endif
-
-/* Starting with at least 2.5.74 the kernel passes the setuid-like exec
- flag unconditionally up to the child. */
-#if __LINUX_KERNEL_VERSION >= 132426
-# define __ASSUME_AT_SECURE 1
-#endif
-
-/* Starting with the 2.5.75 kernel the kernel fills in the correct value
- in the si_pid field passed as part of the siginfo_t struct to signal
- handlers. */
-#if __LINUX_KERNEL_VERSION >= 132427
-# define __ASSUME_CORRECT_SI_PID 1
-#endif
+/* The statfs64 syscalls are available in 2.5.74 (but not for alpha). */
+#define __ASSUME_STATFS64 1
/* The tgkill syscall was instroduced for i386 in 2.5.75. On x86-64,
sparc, SH, ppc, and ppc64 it was introduced in 2.6.0-test3. */
-#if (__LINUX_KERNEL_VERSION >= 132427 && defined __i386__) \
+#if defined __i386__ \
|| (__LINUX_KERNEL_VERSION >= 132609 \
&& (defined __x86_64__ || defined __powerpc__ \
|| defined __sh__ || defined __sparc__))
@@ -158,7 +128,7 @@
forever. For x86 it was introduced after 2.5.75, for x86-64,
ppc, and ppc64 it was introduced in 2.6.0-test3. */
#if defined __sparc__ \
- || (__LINUX_KERNEL_VERSION > 132427 && defined __i386__) \
+ || defined __i386__ \
|| (__LINUX_KERNEL_VERSION > 132609 && defined __x86_64__) \
|| (__LINUX_KERNEL_VERSION >= 132609 && defined __powerpc__) \
|| (__LINUX_KERNEL_VERSION >= 132609 && defined __sh__)
@@ -192,7 +162,7 @@
/* Starting with 2.6.0 PowerPC adds signal/swapcontext support for Vector
SIMD (AKA Altivec, VMX) instructions and register state. This changes
the overall size of the sigcontext and adds the swapcontext syscall. */
-#if __LINUX_KERNEL_VERSION >= 132608 && defined __powerpc__
+#ifdef __powerpc__
# define __ASSUME_SWAPCONTEXT_SYSCALL 1
#endif
@@ -208,12 +178,6 @@
#if (__LINUX_KERNEL_VERSION >= 0x020608 && !defined __s390__) \
|| (__LINUX_KERNEL_VERSION >= 0x02060b && defined __s390__)
# define __ASSUME_GETDENTS32_D_TYPE 1
-#endif
-
-/* Starting with version 2.5.3, the initial location returned by `brk'
- after exec is always rounded up to the next page. */
-#if __LINUX_KERNEL_VERSION >= 132355
-# define __ASSUME_BRK_PAGE_ROUNDED 1
#endif
/* Starting with version 2.6.9, the waitid system call is available.
@@ -229,13 +193,6 @@
#if __LINUX_KERNEL_VERSION >= 0x02060c && defined __sparc__ \
&& defined __arch64__
# define __ASSUME_STAT64_SYSCALL 1
-#endif
-
-/* Early kernel used "shm" as the filesystem name for the filesystem used
- for shm_open etc. Later it is "tmpfs". 2.4.20 is a safe bet for the
- cutover. */
-#if __LINUX_KERNEL_VERSION >= 0x02041a
-# define __ASSUME_TMPFS_NAME 1
#endif
/* pselect/ppoll were introduced just after 2.6.16-rc1. Due to the way
Modified: fsf/trunk/libc/sysdeps/unix/sysv/linux/ldsodefs.h
==============================================================================
--- fsf/trunk/libc/sysdeps/unix/sysv/linux/ldsodefs.h (original)
+++ fsf/trunk/libc/sysdeps/unix/sysv/linux/ldsodefs.h Sat Aug 4 00:01:41 2012
@@ -41,9 +41,7 @@
/* We can assume that the kernel always provides the AT_SECURE value
in the auxiliary vector from 2.5.74 or so on. */
-#if __ASSUME_AT_SECURE
-# define HAVE_AUX_SECURE
-#endif
+#define HAVE_AUX_SECURE
/* Starting with one of the 2.4.0 pre-releases the Linux kernel passes
up the page size information. */
Modified: fsf/trunk/libc/sysdeps/unix/sysv/linux/shm_open.c
==============================================================================
--- fsf/trunk/libc/sysdeps/unix/sysv/linux/shm_open.c (original)
+++ fsf/trunk/libc/sysdeps/unix/sysv/linux/shm_open.c Sat Aug 4 00:01:41 2012
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000-2004,2006,2007 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
@@ -86,11 +86,7 @@
while ((mp = __getmntent_r (fp, &resmem, buf, sizeof buf)) != NULL)
/* The original name is "shm" but this got changed in early Linux
2.4.x to "tmpfs". */
- if (strcmp (mp->mnt_type, "tmpfs") == 0
-#ifndef __ASSUME_TMPFS_NAME
- || strcmp (mp->mnt_type, "shm") == 0
-#endif
- )
+ if (strcmp (mp->mnt_type, "tmpfs") == 0)
{
/* Found it. There might be more than one place where the
filesystem is mounted but one is enough for us. */
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