From c6481412ff19d5c551aba9330082a19a4a93260f Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Fri, 8 Nov 2002 02:20:41 +0000 Subject: * configure.in (ASM_ALPHA_NG_SYMBOL_PREFIX): Remove test. * configure: Regenerated. * config.h.in (ASM_ALPHA_NG_SYMBOL_PREFIX): Remove #undef. * sysdeps/alpha/dl-machine.h (TRAMPOLINE_TEMPLATE): Use !samegp. (RTLD_START): Likewise. Access _dl_skip_args, _rtld_local, and _dl_fini via gp-relative relocations. * sysdeps/alpha/fpu/e_sqrt.c: Use !samegp. * elf/tls-macros.h: Add alpha versions. * sysdeps/alpha/dl-machine.h (elf_machine_rela): Handle TLS relocs. * sysdeps/unix/alpha/sysdep.S: Support USE___THREAD. * sysdeps/unix/alpha/sysdep.h: Likewise. Add SYSCALL_ERROR_HANDLER. * sysdeps/unix/sysv/linux/alpha/brk.S: Use it. * sysdeps/unix/sysv/linux/alpha/clone.S: Likewise. * sysdeps/unix/sysv/linux/alpha/getitimer.S: Likewise. * sysdeps/unix/sysv/linux/alpha/getrusage.S: Likewise. * sysdeps/unix/sysv/linux/alpha/gettimeofday.S: Likewise. * sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S: Likewise. * sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S: Likewise. * sysdeps/unix/sysv/linux/alpha/rt_sigaction.S: Likewise. * sysdeps/unix/sysv/linux/alpha/select.S: Likewise. * sysdeps/unix/sysv/linux/alpha/setitimer.S: Likewise. * sysdeps/unix/sysv/linux/alpha/settimeofday.S: Likewise. * sysdeps/unix/sysv/linux/alpha/sigsuspend.S: Likewise. * sysdeps/unix/sysv/linux/alpha/syscall.S: Likewise. * sysdeps/unix/sysv/linux/alpha/utimes.S: Likewise. * sysdeps/unix/sysv/linux/alpha/wait4.S: Likewise. * sysdeps/unix/sysv/linux/alpha/sysdep.h: Re-include protect. Kill argument registers across the inline syscall. * sysdeps/unix/sysv/linux/alpha/clone.S: Add user_tid and tls args. * linuxthreads/sysdeps/alpha/tls.h: New file. * sysdeps/alpha/dl-tls.h: New file. --- linuxthreads/sysdeps/alpha/tls.h | 111 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 111 insertions(+) create mode 100644 linuxthreads/sysdeps/alpha/tls.h (limited to 'linuxthreads') diff --git a/linuxthreads/sysdeps/alpha/tls.h b/linuxthreads/sysdeps/alpha/tls.h new file mode 100644 index 0000000000..c5cdc0a5b0 --- /dev/null +++ b/linuxthreads/sysdeps/alpha/tls.h @@ -0,0 +1,111 @@ +/* Definitions for thread-local data handling. linuxthreads/Alpha version. + Copyright (C) 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 + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _TLS_H +#define _TLS_H + +#ifndef __ASSEMBLER__ + +# include +# include + +/* Type for the dtv. */ +typedef union dtv +{ + size_t counter; + void *pointer; +} dtv_t; + + +typedef struct +{ + dtv_t *dtv; + + /* Reserved for the thread implementation. In the case of LinuxThreads, + this is the thread descriptor. */ + void *tcb; +} tcbhead_t; +#endif + + +#ifdef HAVE_TLS_SUPPORT + +/* Signal that TLS support is available. */ +# define USE_TLS 1 + +# ifndef __ASSEMBLER__ +/* Get system call information. */ +# include + +/* Get the thread descriptor definition. */ +# include + +/* This is the size of the initial TCB. */ +# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t) + +/* Alignment requirements for the initial TCB. */ +# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t) + +/* This is the size of the TCB. */ +# define TLS_TCB_SIZE sizeof (struct _pthread_descr_struct) + +/* Alignment requirements for the TCB. */ +# define TLS_TCB_ALIGN __alignof__ (struct _pthread_descr_struct) + +/* The DTV is allocated at the TP; the TCB is placed elsewhere. */ +# define TLS_DTV_AT_TP 1 + +/* Install the dtv pointer. The pointer passed is to the element with + index -1 which contain the length. */ +# define INSTALL_DTV(descr, dtvp) \ + ((tcbhead_t *) (descr))->dtv = (dtvp) + 1 + +/* Install new dtv for current thread. */ +# define INSTALL_NEW_DTV(DTV) \ + (((tcbhead_t *)__builtin_thread_pointer ())->dtv = (DTV)) + +/* Return dtv of given thread descriptor. */ +# define GET_DTV(descr) \ + (((tcbhead_t *) (descr))->dtv) + +/* Code to initially initialize the thread pointer. This might need + special attention since 'errno' is not yet available and if the + operation can cause a failure 'errno' must not be touched. */ +# define TLS_INIT_TP(descr, secondcall) \ + ({ \ + register tcbhead_t *__self = (void *)(descr); \ + __self->tcb = __self; \ + __builtin_set_thread_pointer(__self); \ + }) + +/* Return the address of the dtv for the current thread. */ +# define THREAD_DTV() \ + (((tcbhead_t *)__builtin_thread_pointer ())->dtv) + +/* Return the thread descriptor for the current thread. */ +#undef THREAD_SELF +#define THREAD_SELF \ + ((pthread_descr)(((tcbhead_t *)__builtin_thread_pointer ())->tcb)) + +#undef INIT_THREAD_SELF + +# endif /* HAVE_TLS_SUPPORT */ +#endif /* __ASSEMBLER__ */ + +#endif /* tls.h */ -- cgit v1.2.3