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* sysdeps/x86_64/pt-machine.h: Use %fs instead of %gs

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as thread specific register.
	(testandset): Fix inline asm.
	(THREAD_GETMEM): Fix inline asm.
This commit is contained in:
Andreas Jaeger 2002-08-23 15:22:37 +00:00
parent 94633b2b35
commit 234dcd5721
2 changed files with 35 additions and 19 deletions
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7
linuxthreads/ChangeLog
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@ -1,3 +1,10 @@
2002-08-23 Andreas Jaeger <aj@suse.de>
* sysdeps/x86_64/pt-machine.h: Use %fs instead of %gs
as thread specific register.
(testandset): Fix inline asm.
(THREAD_GETMEM): Fix inline asm.
2002-05-21 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/pthread.h (pthread_create): Rename first

47
linuxthreads/sysdeps/x86_64/pt-machine.h
View File

@ -1,6 +1,6 @@
/* Machine-dependent pthreads configuration and inline functions.
x86-64 version.
Copyright (C) 2001 Free Software Foundation, Inc.
Copyright (C) 2001, 2002 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
@ -18,6 +18,9 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#ifndef _PT_MACHINE_H
#define _PT_MACHINE_H 1
#include <stddef.h> /* For offsetof. */
#include <stdlib.h> /* For abort(). */
#include <asm/prctl.h>
@ -27,6 +30,9 @@
# define PT_EI extern inline
#endif
extern long int testandset (int *spinlock);
extern int __compare_and_swap (long int *p, long int oldval, long int newval);
/* Get some notion of the current stack. Need not be exactly the top
of the stack, just something somewhere in the current frame. */
#define CURRENT_STACK_FRAME stack_pointer
@ -40,7 +46,7 @@ testandset (int *spinlock)
long int ret;
__asm__ __volatile__ (
"xchgq %0, %1"
"xchgl %k0, %1"
: "=r"(ret), "=m"(*spinlock)
: "0"(1), "m"(*spinlock)
: "memory");
@ -65,7 +71,6 @@ __compare_and_swap (long int *p, long int oldval, long int newval)
return ret;
}
/* Return the thread descriptor for the current thread.
The contained asm must *not* be marked volatile since otherwise
@ -75,7 +80,7 @@ __compare_and_swap (long int *p, long int oldval, long int newval)
#define THREAD_SELF \
({ \
register pthread_descr __self; \
__asm__ ("movq %%gs:%c1,%0" : "=r" (__self) \
__asm__ ("movq %%fs:%c1,%0" : "=r" (__self) \
: "i" (offsetof (struct _pthread_descr_struct, \
p_header.data.self))); \
__self; \
@ -87,7 +92,7 @@ extern int __arch_prctl (int __code, unsigned long __addr);
/* Initialize the thread-unique value. */
#define INIT_THREAD_SELF(descr, nr) \
{ \
if (__arch_prctl (ARCH_SET_GS, descr) != 0) \
if (__arch_prctl (ARCH_SET_FS, (unsigned long)descr) != 0) \
abort (); \
}
@ -96,15 +101,16 @@ extern int __arch_prctl (int __code, unsigned long __addr);
({ \
__typeof__ (descr->member) __value; \
if (sizeof (__value) == 1) \
__asm__ __volatile__ ("movb %%gs:%P2,%b0" \
__asm__ __volatile__ ("movb %%fs:%P2,%b0" \
: "=q" (__value) \
: "0" (0), \
"i" (offsetof (struct _pthread_descr_struct, \
member))); \
else if (sizeof (__value) == 4) \
__asm__ __volatile__ ("movl %%gs:%P1,%0" \
__asm__ __volatile__ ("movl %%fs:%P2,%k0" \
: "=r" (__value) \
: "i" (offsetof (struct _pthread_descr_struct, \
: "0" (0), \
"i" (offsetof (struct _pthread_descr_struct, \
member))); \
else \
{ \
@ -112,7 +118,7 @@ extern int __arch_prctl (int __code, unsigned long __addr);
/* There should not be any value with a size other than 1, 4 or 8. */\
abort (); \
\
__asm__ __volatile__ ("movq %%gs:%P1,%0" \
__asm__ __volatile__ ("movq %%fs:%P1,%0" \
: "=r" (__value) \
: "i" (offsetof (struct _pthread_descr_struct, \
member))); \
@ -125,15 +131,16 @@ extern int __arch_prctl (int __code, unsigned long __addr);
({ \
__typeof__ (descr->member) __value; \
if (sizeof (__value) == 1) \
__asm__ __volatile__ ("movb %%gs:(%2),%b0" \
__asm__ __volatile__ ("movb %%fs:(%2),%b0" \
: "=q" (__value) \
: "0" (0), \
"r" (offsetof (struct _pthread_descr_struct, \
member))); \
else if (sizeof (__value) == 4) \
__asm__ __volatile__ ("movl %%gs:(%1),%0" \
__asm__ __volatile__ ("movl %%fs:(%2),%k0" \
: "=r" (__value) \
: "r" (offsetof (struct _pthread_descr_struct, \
: "0" (0), \
"r" (offsetof (struct _pthread_descr_struct, \
member))); \
else \
{ \
@ -141,7 +148,7 @@ extern int __arch_prctl (int __code, unsigned long __addr);
/* There should not be any value with a size other than 1, 4 or 8. */\
abort (); \
\
__asm__ __volatile__ ("movq %%gs:(%1),%0" \
__asm__ __volatile__ ("movq %%fs:(%1),%0" \
: "=r" (__value) \
: "r" (offsetof (struct _pthread_descr_struct, \
member))); \
@ -154,12 +161,12 @@ extern int __arch_prctl (int __code, unsigned long __addr);
({ \
__typeof__ (descr->member) __value = (value); \
if (sizeof (__value) == 1) \
__asm__ __volatile__ ("movb %0,%%gs:%P1" : \
__asm__ __volatile__ ("movb %0,%%fs:%P1" : \
: "q" (__value), \
"i" (offsetof (struct _pthread_descr_struct, \
member))); \
else if (sizeof (__value) == 4) \
__asm__ __volatile__ ("movl %0,%%gs:%P1" : \
__asm__ __volatile__ ("movl %k0,%%fs:%P1" : \
: "r" (__value), \
"i" (offsetof (struct _pthread_descr_struct, \
member))); \
@ -169,7 +176,7 @@ extern int __arch_prctl (int __code, unsigned long __addr);
/* There should not be any value with a size other than 1, 4 or 8. */\
abort (); \
\
__asm__ __volatile__ ("movq %0,%%gs:%P1" : \
__asm__ __volatile__ ("movq %0,%%fs:%P1" : \
: "r" (__value), \
"i" (offsetof (struct _pthread_descr_struct, \
member))); \
@ -181,12 +188,12 @@ extern int __arch_prctl (int __code, unsigned long __addr);
({ \
__typeof__ (descr->member) __value = (value); \
if (sizeof (__value) == 1) \
__asm__ __volatile__ ("movb %0,%%gs:(%1)" : \
__asm__ __volatile__ ("movb %0,%%fs:(%1)" : \
: "q" (__value), \
"r" (offsetof (struct _pthread_descr_struct, \
member))); \
else if (sizeof (__value) == 4) \
__asm__ __volatile__ ("movl %0,%%gs:(%1)" : \
__asm__ __volatile__ ("movl %k0,%%fs:(%1)" : \
: "r" (__value), \
"r" (offsetof (struct _pthread_descr_struct, \
member))); \
@ -196,7 +203,7 @@ extern int __arch_prctl (int __code, unsigned long __addr);
/* There should not be any value with a size other than 1, 4 or 8. */\
abort (); \
\
__asm__ __volatile__ ("movq %0,%%gs:(%1)" : \
__asm__ __volatile__ ("movq %0,%%fs:(%1)" : \
: "r" (__value), \
"r" (offsetof (struct _pthread_descr_struct, \
member))); \
@ -208,3 +215,5 @@ 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
#endif /* pt-machine.h */