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authorUlrich Drepper <drepper@redhat.com>2004-03-23 10:01:06 +0000
committerUlrich Drepper <drepper@redhat.com>2004-03-23 10:01:06 +0000
commite408880b8102768b2fb612a82589a143b04d6302 (patch)
treed26a78a852532cd39bf83212f025a2a5b7659dc5 /linuxthreads
parent16b06b70b58461cca36a4aa83559cb89385076ce (diff)
downloadglibc-e408880b8102768b2fb612a82589a143b04d6302.tar.gz
glibc-e408880b8102768b2fb612a82589a143b04d6302.tar.xz
glibc-e408880b8102768b2fb612a82589a143b04d6302.zip
Update.
2004-03-23  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/ia64/pt-machine.h (BUSY_WAIT_NOP): Define.
	* sysdeps/x86_64/pt-machine.h (BUSY_WAIT_NOP): Likewise.
Diffstat (limited to 'linuxthreads')
-rw-r--r--linuxthreads/ChangeLog5
-rw-r--r--linuxthreads/sysdeps/ia64/pt-machine.h5
-rw-r--r--linuxthreads/sysdeps/x86_64/pt-machine.h5
3 files changed, 13 insertions, 2 deletions
diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog
index e6ed4e4051..442dc0b513 100644
--- a/linuxthreads/ChangeLog
+++ b/linuxthreads/ChangeLog
@@ -1,3 +1,8 @@
+2004-03-23  Ulrich Drepper  <drepper@redhat.com>
+
+	* sysdeps/ia64/pt-machine.h (BUSY_WAIT_NOP): Define.
+	* sysdeps/x86_64/pt-machine.h (BUSY_WAIT_NOP): Likewise.
+
 2004-03-12  Ulrich Drepper  <drepper@redhat.com>
 
 	* sysdeps/unix/sysv/linux/bits/local_lim.h: Add HOST_NAME_MAX.
diff --git a/linuxthreads/sysdeps/ia64/pt-machine.h b/linuxthreads/sysdeps/ia64/pt-machine.h
index ee489a7fc0..a04ae81e2c 100644
--- a/linuxthreads/sysdeps/ia64/pt-machine.h
+++ b/linuxthreads/sysdeps/ia64/pt-machine.h
@@ -1,6 +1,6 @@
 /* Machine-dependent pthreads configuration and inline functions.
    IA-64 version.
-   Copyright (C) 1999, 2000, 2002, 2003 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2000, 2002, 2003, 2004 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
@@ -127,4 +127,7 @@ testandset (int *spinlock)
   return ret;
 }
 
+/* Indicate that we are looping.  */
+#define BUSY_WAIT_NOP	__asm__ ("hint @pause")
+
 #endif /* pt-machine.h */
diff --git a/linuxthreads/sysdeps/x86_64/pt-machine.h b/linuxthreads/sysdeps/x86_64/pt-machine.h
index bd53069a78..68baac7d03 100644
--- a/linuxthreads/sysdeps/x86_64/pt-machine.h
+++ b/linuxthreads/sysdeps/x86_64/pt-machine.h
@@ -1,6 +1,6 @@
 /* Machine-dependent pthreads configuration and inline functions.
    x86-64 version.
-   Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2002, 2003, 2004 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
@@ -219,4 +219,7 @@ extern int __arch_prctl (int __code, unsigned long __addr);
 /* Maximum size of the stack if the rlimit is unlimited.  */
 #define ARCH_STACK_MAX_SIZE	32*1024*1024
 
+/* The ia32e really want some help to prevent overheating.  */
+#define BUSY_WAIT_NOP	__asm__ ("rep; nop")
+
 #endif /* pt-machine.h */