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authorRoland McGrath <roland@gnu.org>2002-11-08 02:20:41 +0000
committerRoland McGrath <roland@gnu.org>2002-11-08 02:20:41 +0000
commitc6481412ff19d5c551aba9330082a19a4a93260f (patch)
tree335acb22df9e06295318ebe74d3dc8d6dac03968 /linuxthreads
parentdfe4c900cb1d03533702c453c3a9abe6d41e545d (diff)
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* 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.
Diffstat (limited to 'linuxthreads')
-rw-r--r--linuxthreads/sysdeps/alpha/tls.h111
1 files changed, 111 insertions, 0 deletions
diff --git a/linuxthreads/sysdeps/alpha/tls.h b/linuxthreads/sysdeps/alpha/tls.h
new file mode 100644
index 0000000..c5cdc0a
--- /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 <pt-machine.h>
+# include <stddef.h>
+
+/* 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 <sysdep.h>
+
+/* Get the thread descriptor definition. */
+# include <linuxthreads/descr.h>
+
+/* 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 */