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Update.

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* sysdeps/i386/tls.h (THREAD_GETMEM_NC): Change interface.  It now
	takes the array member name and the index as parameters.
	(THREAD_SETMEM_NC): Likewise.
	* pthread_getspecific.c: Use new THREAD_GETMEM_NC interface.
	* pthread_setspecific.c: Use new THREAD_GETMEM_NC and THREAD_SETMEM_NC
	interfaces.

	* sysdeps/i386/tls.h (THREAD_SETMEM): Use size of member element
	to decide which code to use.
	(THREAD_SETMEM_NC): Likewise.
This commit is contained in:
Ulrich Drepper
2002-11-27 07:09:18 +00:00
parent 76a50749f7
commit 117c452c98
4 changed files with 43 additions and 28 deletions
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54
nptl/sysdeps/i386/tls.h
View File

@@ -1,4 +1,4 @@
/* Definition for thread-local data handling. linuxthreads/i386 version.
/* Definition for thread-local data handling. nptl/i386 version.
Copyright (C) 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
@@ -253,16 +253,17 @@ union user_desc_init
/* Same as THREAD_GETMEM, but the member offset can be non-constant. */
# define THREAD_GETMEM_NC(descr, member) \
({ __typeof (descr->member) __value; \
# define THREAD_GETMEM_NC(descr, member, idx) \
({ __typeof (descr->member[0]) __value; \
if (sizeof (__value) == 1) \
asm ("movb %%gs:(%2),%b0" \
asm ("movb %%gs:%P2(%3),%b0" \
: "=q" (__value) \
: "0" (0), "r" (offsetof (struct pthread, member))); \
: "0" (0), "i" (offsetof (struct pthread, member[0])), \
"r" (idx)); \
else if (sizeof (__value) == 4) \
asm ("movl %%gs:(%1),%0" \
asm ("movl %%gs:%P1(,%2,4),%0" \
: "=r" (__value) \
: "r" (offsetof (struct pthread, member))); \
: "i" (offsetof (struct pthread, member[0])), "r" (idx)); \
else \
{ \
if (sizeof (__value) != 8) \
@@ -270,32 +271,32 @@ union user_desc_init
4 or 8. */ \
abort (); \
\
asm ("movl %%gs:(%1),%%eax\n\t" \
"movl %%gs:4(%1),%%edx" \
asm ("movl %%gs:%P1(,%2,8),%%eax\n\t" \
"movl %%gs:4+%P1(,%2,8),%%edx" \
: "=&A" (__value) \
: "r" (offsetof (struct pthread, member))); \
: "i" (offsetof (struct pthread, member[0])), "r" (idx)); \
} \
__value; })
/* Same as THREAD_SETMEM, but the member offset can be non-constant. */
# define THREAD_SETMEM(descr, member, value) \
({ if (sizeof (value) == 1) \
({ if (sizeof (descr->member) == 1) \
asm volatile ("movb %0,%%gs:%P1" : \
: "iq" (value), \
"i" (offsetof (struct pthread, member))); \
else if (sizeof (value) == 4) \
else if (sizeof (descr->member) == 4) \
asm volatile ("movl %0,%%gs:%P1" : \
: "ir" (value), \
"i" (offsetof (struct pthread, member))); \
else \
{ \
if (sizeof (value) != 8) \
if (sizeof (descr->member) != 8) \
/* There should not be any value with a size other than 1, \
4 or 8. */ \
abort (); \
\
asm volatile ("movl %%eax,%%gs:%P1\n\n" \
asm volatile ("movl %%eax,%%gs:%P1\n\t" \
"movl %%edx,%%gs:%P2" : \
: "A" (value), \
"i" (offsetof (struct pthread, member)), \
@@ -304,26 +305,29 @@ union user_desc_init
/* Set member of the thread descriptor directly. */
# define THREAD_SETMEM_NC(descr, member, value) \
({ if (sizeof (value) == 1) \
asm volatile ("movb %0,%%gs:(%1)" : \
# define THREAD_SETMEM_NC(descr, member, idx, value) \
({ if (sizeof (descr->member[0]) == 1) \
asm volatile ("movb %0,%%gs:%P1(%2)" : \
: "iq" (value), \
"r" (offsetof (struct pthread, member))); \
else if (sizeof (value) == 4) \
asm volatile ("movl %0,%%gs:(%1)" : \
"i" (offsetof (struct pthread, member)), \
"r" (idx)); \
else if (sizeof (descr->member[0]) == 4) \
asm volatile ("movl %0,%%gs:%P1(,%2,4)" : \
: "ir" (value), \
"r" (offsetof (struct pthread, member))); \
"i" (offsetof (struct pthread, member)), \
"r" (idx)); \
else \
{ \
if (sizeof (value) != 8) \
if (sizeof (descr->member[0]) != 8) \
/* There should not be any value with a size other than 1, \
4 or 8. */ \
abort (); \
\
asm volatile ("movl %%eax,%%gs:(%1)\n\t" \
"movl %%edx,%%gs:4(%1)" : \
asm volatile ("movl %%eax,%%gs:%P1(,%2,8)\n\t" \
"movl %%edx,%%gs:4+%P1(,%2,8)" : \
: "A" (value), \
"r" (offsetof (struct pthread, member))); \
"i" (offsetof (struct pthread, member)), \
"r" (idx)); \
}})