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b2740a3b0a
2003-02-17 Kevin B. Hendricks <kevin.hendricks@sympatico.ca> Franz Sirl <Franz.Sirl-kernel@lauterbach.com> * sysdeps/powerpc/elf/libc-start.c: Handle NONTLS_INIT_TP. * sysdeps/powerpc/powerpc32/__longjmp.S: Remove R2 handling. * sysdeps/powerpc/powerpc32/setjmp.S: Likewise. * sysdeps/powerpc/powerpc32/fpu/__longjmp.S: Likewise. * sysdeps/powerpc/powerpc32/fpu/setjmp.S: Likewise.
64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
/* Definitions for thread-local data handling. linuxthreads/PPC version.
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Copyright (C) 2003 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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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _TLS_H
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#define _TLS_H
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#ifndef __ASSEMBLER__
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# include <pt-machine.h>
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# include <stddef.h>
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/* Type for the dtv. */
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typedef union dtv
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{
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size_t counter;
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void *pointer;
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} dtv_t;
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typedef struct
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{
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void *tcb; /* Pointer to the TCB. Not necessary the
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thread descriptor used by libpthread. */
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dtv_t *dtv;
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void *self; /* Pointer to the thread descriptor. */
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int multiple_threads;
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} tcbhead_t;
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#else /* __ASSEMBLER__ */
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# include <tcb-offsets.h>
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#endif /* __ASSEMBLER__ */
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#undef USE_TLS
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#if USE_TLS
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#else
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#define NONTLS_INIT_TP \
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do { \
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static const tcbhead_t nontls_init_tp \
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= { .multiple_threads = 0 }; \
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__thread_self = (__typeof (__thread_self)) &nontls_init_tp; \
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} while (0)
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#endif /* USE_TLS */
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#endif /* tls.h */
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