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* version.h (VERSION): Define to 6.
* include/features.h (__GLIBC_MINOR__): Likewise.
This commit is contained in:
Ulrich Drepper
parent
83d87915da
commit
2c1d617226
@ -1,5 +1,8 @@
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2007-05-14 Ulrich Drepper <drepper@redhat.com>
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* version.h (VERSION): Define to 6.
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* include/features.h (__GLIBC_MINOR__): Likewise.
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* malloc/malloc.c: Use all small bin slots on 64-bit archs.
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* malloc/malloc.c (largebin_index): Really have 32 buckets with 64
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4
README
4
README
@ -1,4 +1,4 @@
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This directory contains the version 2.5 release of the GNU C Library.
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This directory contains the version 2.6 release of the GNU C Library.
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The GNU C Library is the standard system C library for all GNU systems,
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and is an important part of what makes up a GNU system. It provides the
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@ -52,7 +52,7 @@ The GNU C Library supports these configurations for using Linux kernels:
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The code for other CPU configurations supported by volunteers outside of
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the core glibc maintenance effort is contained in the separate `ports'
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add-on. You can find glibc-ports-2.5 distributed separately in the
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add-on. You can find glibc-ports-2.6 distributed separately in the
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same place where you got the main glibc distribution files.
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Currently these configurations are known to work using the `ports' add-on:
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@ -1,5 +1,4 @@
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/* Copyright (C) 1991,1992,1993,1995,1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006
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Free Software Foundation, Inc.
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/* Copyright (C) 1991,1992,1993,1995-2006,2007 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -304,7 +303,7 @@
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/* Major and minor version number of the GNU C library package. Use
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these macros to test for features in specific releases. */
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#define __GLIBC__ 2
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#define __GLIBC_MINOR__ 5
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#define __GLIBC_MINOR__ 6
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#define __GLIBC_PREREQ(maj, min) \
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((__GLIBC__ << 16) + __GLIBC_MINOR__ >= ((maj) << 16) + (min))
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@ -1,12 +1,5 @@
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2007-05-14 Ulrich Drepper <drepper@redhat.com>
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* sysdeps/unix/sysv/linux/sem_post.c: Only wake threads if old
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value of semaphore was zero.
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* sysdeps/unix/sysv/linux/i386/i486/sem_post.S: Likewise.
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* sysdeps/unix/sysv/linux/powerpc/sem_post.c: Likewise.
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* sysdeps/unix/sysv/linux/sparc/sparc32/sem_post.c: Likewise.
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* sysdeps/unix/sysv/linux/x86_64/sem_post.S: Likewise.
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* sysdeps/unix/sysv/linux/x86_64/sem_wait.S: Remove unnecessary
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extra cancellation test.
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* sysdeps/unix/sysv/linux/x86_64/sem_timedwait.S: Likewise.
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15
nptl/TODO
15
nptl/TODO
@ -14,3 +14,18 @@ syscall needed.
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- test with threaded process terminating and semadj (?) being applied
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only after all threads are gone
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- semaphore changes:
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- sem_post should only wake one thread and only when the state of
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the semaphore changed from 0 to 1
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this also requires that sem_wait and sem_timedwait don't drop the
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post if they get canceled.
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- possibly add counter field. This requires reviving the
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differences between old and new semaphose funtions. The old ones
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stay as they are now. The new once can use an additional field
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wich is the counter for the number of waiters
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@ -1,4 +1,4 @@
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/* Copyright (C) 2002, 2003, 2005, 2007 Free Software Foundation, Inc.
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/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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@ -44,12 +44,9 @@ __new_sem_post:
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LOCK
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xaddl %edx, (%ebx)
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testl %edx, %edx
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jne 2f
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movl $SYS_futex, %eax
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movl $FUTEX_WAKE, %ecx
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movl $1, %edx
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addl $1, %edx
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ENTER_KERNEL
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testl %eax, %eax
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@ -1,5 +1,5 @@
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/* sem_post -- post to a POSIX semaphore. Powerpc version.
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Copyright (C) 2003, 2004, 2007 Free Software Foundation, Inc.
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Copyright (C) 2003, 2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
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@ -32,14 +32,12 @@ __new_sem_post (sem_t *sem)
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int *futex = (int *) sem;
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__asm __volatile (__lll_rel_instr ::: "memory");
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if (atomic_increment_val (futex) == 1)
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int nr = atomic_increment_val (futex);
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int err = lll_futex_wake (futex, nr);
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if (__builtin_expect (err, 0) < 0)
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{
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int err = lll_futex_wake (futex, 1);
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if (__builtin_expect (err, 0) < 0)
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{
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__set_errno (-err);
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return -1;
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}
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__set_errno (-err);
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return -1;
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}
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return 0;
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}
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@ -1,5 +1,5 @@
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/* sem_post -- post to a POSIX semaphore. Generic futex-using version.
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Copyright (C) 2003, 2004, 2007 Free Software Foundation, Inc.
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Copyright (C) 2003, 2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
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@ -31,14 +31,12 @@ __new_sem_post (sem_t *sem)
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{
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int *futex = (int *) sem;
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if (atomic_increment_val (futex) == 1)
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int nr = atomic_increment_val (futex);
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int err = lll_futex_wake (futex, nr);
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if (__builtin_expect (err, 0) < 0)
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{
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int err = lll_futex_wake (futex, 1);
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if (__builtin_expect (err, 0) < 0)
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{
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__set_errno (-err);
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return -1;
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}
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__set_errno (-err);
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return -1;
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}
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return 0;
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}
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@ -1,5 +1,5 @@
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/* sem_post -- post to a POSIX semaphore. SPARC version.
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Copyright (C) 2003, 2004, 2006, 2007 Free Software Foundation, Inc.
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Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
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@ -39,14 +39,11 @@ __new_sem_post (sem_t *sem)
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nr = ++*futex;
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__sparc32_atomic_do_unlock24 (futex + 1);
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}
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if (nr == 1)
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int err = lll_futex_wake (futex, nr);
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if (__builtin_expect (err, 0) < 0)
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{
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int err = lll_futex_wake (futex, 1);
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if (__builtin_expect (err, 0) < 0)
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{
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__set_errno (-err);
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return -1;
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}
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__set_errno (-err);
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return -1;
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}
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return 0;
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}
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@ -1,4 +1,4 @@
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/* Copyright (C) 2002, 2003, 2005, 2007 Free Software Foundation, Inc.
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/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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@ -41,18 +41,15 @@ sem_post:
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LOCK
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xaddl %edx, (%rdi)
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testl %edx, %edx
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jne 2f
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movl $SYS_futex, %eax
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movl $FUTEX_WAKE, %esi
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movl $1, %edx
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incl %edx
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syscall
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testq %rax, %rax
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js 1f
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2: xorl %eax, %eax
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xorl %eax, %eax
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retq
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1:
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