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author | Roland McGrath <roland@gnu.org> | 2002-08-02 03:32:24 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 2002-08-02 03:32:24 +0000 |
commit | c2afe833521105e05298500ba5d4676d6c833242 (patch) | |
tree | 226bb6da849fe8d860b766d3c365c8cfeb99b19e /sysdeps | |
parent | ae8f7f19faf701667d5e88195e3efc479c4a0746 (diff) | |
download | glibc-c2afe833521105e05298500ba5d4676d6c833242.zip glibc-c2afe833521105e05298500ba5d4676d6c833242.tar.gz glibc-c2afe833521105e05298500ba5d4676d6c833242.tar.bz2 |
* sysdeps/pthread/bits/libc-tsd.h: Include <tls.h>.
[USE_TLS && HAVE___THREAD]: Just include the sysdeps/generic file,
which does the right thing when __thread support is available.
* descr.h (struct _pthread_descr_struct) [USE_TLS && HAVE___THREAD]:
Omit `p_libc_specific', `p_errnop', `p_errno', `p_h_errnop',
`p_h_errno', `p_resp', and `p_res' members.
* pthread.c (__pthread_initialize_minimal) [USE_TLS && HAVE___THREAD]:
Don't initialize `p_errnop' and `p_h_errnop' members.
(__pthread_reset_main_thread): Likewise.
(__pthread_initialize_manager): Likewise.
* manager.c (__pthread_manager, pthread_handle_create): Likewise.
* pthread.c (pthread_initialize) [USE_TLS && HAVE___THREAD]:
Don't initialize `p_resp' member.
(__pthread_reset_main_thread): Likewise.
* manager.c (pthread_handle_create): Likewise.
* specific.c (libc_internal_tsd_set, libc_internal_tsd_get):
Conditionalize these on [!(USE_TLS && HAVE___THREAD)].
* errno.c [USE_TLS && HAVE___THREAD]
(__h_errno_location, __res_state): Don't define these at all.
* sysdeps/i386/tls.h (INSTALL_DTV): Add parens around arguments!
(INSTALL_NEW_DTV, GET_DTV): Likewise.
* sysdeps/sh/tls.h (INSTALL_DTV, INSTALL_NEW_DTV, GET_DTV): Likewise.
* weaks.c: Don't include <errno.h> here.
2002-08-01 Roland McGrath <roland@redhat.com>
* sysdeps/i386/tls.h (TLS_DO_MODIFY_LDT): New macro, broken out of
TLS_INIT_TP.
(TLS_DO_SET_THREAD_AREA): New macro, uses thread_set_area syscall.
(TLS_SETUP_GS_SEGMENT): New macro, try one or the other or both.
(TLS_INIT_TP): Use that.
Diffstat (limited to 'sysdeps')
-rw-r--r-- | sysdeps/generic/bits/libc-tsd.h | 29 | ||||
-rw-r--r-- | sysdeps/generic/sysdep.h | 4 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/i386/sysdep.h | 4 |
3 files changed, 24 insertions, 13 deletions
diff --git a/sysdeps/generic/bits/libc-tsd.h b/sysdeps/generic/bits/libc-tsd.h index 80bd1d3..fc17be1 100644 --- a/sysdeps/generic/bits/libc-tsd.h +++ b/sysdeps/generic/bits/libc-tsd.h @@ -1,5 +1,5 @@ -/* libc-internal interface for thread-specific data. Stub version. - Copyright (C) 1998, 2001 Free Software Foundation, Inc. +/* libc-internal interface for thread-specific data. Stub or TLS version. + Copyright (C) 1998,2001,02 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 @@ -17,8 +17,8 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#ifndef _BITS_LIBC_TSD_H -#define _BITS_LIBC_TSD_H 1 +#ifndef _GENERIC_BITS_LIBC_TSD_H +#define _GENERIC_BITS_LIBC_TSD_H 1 /* This file defines the following macros for accessing a small fixed set of thread-specific `void *' data used only internally by libc. @@ -40,13 +40,22 @@ Some implementations may not provide any enum at all and instead using string pasting in the macros. */ -/* This is the generic/stub implementation for wholly single-threaded - systems. We don't define an enum for the possible key values, because - the KEYs translate directly into variables by macro magic. */ +#include <tls.h> -#define __libc_tsd_define(CLASS, KEY) CLASS void *__libc_tsd_##KEY##_data; -#define __libc_tsd_get(KEY) (__libc_tsd_##KEY##_data) -#define __libc_tsd_set(KEY, VALUE) (__libc_tsd_##KEY##_data = (VALUE)) +/* When full support for __thread variables is available, this interface is + just a trivial wrapper for it. Without TLS, this is the generic/stub + implementation for wholly single-threaded systems. + We don't define an enum for the possible key values, because the KEYs + translate directly into variables by macro magic. */ + +#if USE_TLS && HAVE___THREAD +# define __libc_tsd_define(CLASS, KEY) CLASS __thread void *__libc_tsd_##KEY; +#else +# define __libc_tsd_define(CLASS, KEY) CLASS void *__libc_tsd_##KEY; +#endif + +#define __libc_tsd_get(KEY) (__libc_tsd_##KEY) +#define __libc_tsd_set(KEY, VALUE) (__libc_tsd_##KEY = (VALUE)) #endif /* bits/libc-tsd.h */ diff --git a/sysdeps/generic/sysdep.h b/sysdeps/generic/sysdep.h index 3e46461..280e0e4 100644 --- a/sysdeps/generic/sysdep.h +++ b/sysdeps/generic/sysdep.h @@ -1,5 +1,5 @@ /* Generic asm macros used on many machines. - Copyright (C) 1991, 92, 93, 96, 98 Free Software Foundation, Inc. + Copyright (C) 1991,92,93,96,98,2002 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 @@ -36,8 +36,10 @@ #endif +#ifdef __ASSEMBLER__ /* Mark the end of function named SYM. This is used on some platforms to generate correct debugging information. */ #ifndef END #define END(sym) #endif +#endif /* __ASSEMBLER__ */ diff --git a/sysdeps/unix/sysv/linux/i386/sysdep.h b/sysdeps/unix/sysv/linux/i386/sysdep.h index a6f18ec..de60df4 100644 --- a/sysdeps/unix/sysv/linux/i386/sysdep.h +++ b/sysdeps/unix/sysv/linux/i386/sysdep.h @@ -33,12 +33,12 @@ #undef SYS_ify #define SYS_ify(syscall_name) __NR_##syscall_name +#ifdef __ASSEMBLER__ + /* ELF-like local names start with `.L'. */ #undef L #define L(name) .L##name -#ifdef __ASSEMBLER__ - /* Linux uses a negative return value to indicate syscall errors, unlike most Unices, which use the condition codes' carry flag. |