From 3fb558781fe9bdad55c25157eaea0531e727ba39 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Thu, 7 Feb 2002 04:08:19 +0000 Subject: Update. 2002-02-06 Ulrich Drepper * Versions.def [ld]: Add GLIBC_2.3. * elf/Versions [ld]: Add __tls_get_addr to GLIBC_2.3. * elf/Makefile (dl-routines): Add dl-tls. (distribute): Add dl-tls.h. * sysdeps/generic/ldsodefs.h (struct rtld_global): Remove _dl_tls_module_cnt, add _dl_tls_max_dtv_idx and _dl_tls_dtv_gaps. Add prototypes for _dl_next_tls_modid and _dl_determine_tlsoffset. * elf/dl-load.c (_dl_map_object_from_fd): Store alignment requirement along with the other info in the link map. Change queueing of init images for double linked list. Use _dl_next_tls_modid to compute l_tls_modid. * elf/rtld.c (_dl_start_final): Store alignment requirement along with the other info in rtld map and executable map. (dl_main): Add ld.so to the init image list if necessary. Compute final module ID with _dl_next_tls_modid. * include/link.h (struct link_map): Add l_tls_previmage and l_tls_align. * eld/dl-support.c: Define _dl_tls_max_dtv_idx and _dl_tls_dtv_gaps. * sysdeps/i386/elf/Versions: New file. * sysdeps/generic/dl-tls.c: New file. * sysdeps/generic/dl-tls.h: New file. * sysdeps/i386/dl-tls.h: New file. attribute((packed)) to counter stupid people misusing gcc options. --- sysdeps/i386/dl-tls.h | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 sysdeps/i386/dl-tls.h (limited to 'sysdeps/i386/dl-tls.h') diff --git a/sysdeps/i386/dl-tls.h b/sysdeps/i386/dl-tls.h new file mode 100644 index 0000000000..2ff1aa1ef7 --- /dev/null +++ b/sysdeps/i386/dl-tls.h @@ -0,0 +1,47 @@ +/* Thread-local storage handling in the ELF dynamic linker. i386 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. */ + +/* Type used for the representation of TLS information in the GOT. */ +struct tls_index +{ + unsigned long int ti_module; + unsigned long int ti_offset; +}; + + +/* This is the prototype for the GNU version. */ +extern void *___tls_get_addr (struct tls_index *ti) + __attribute__ ((__regparm__ (1))); + +/* The special thing about the x86 TLS ABI is that we have two + variants of the __tls_get_addr function with different calling + conventions. The GNU version, which we are mostly concerned here, + takes the parameter in a register. The name is changed by adding + an additional underscore at the beginning. The Sun version uses + the normal calling convention. */ +void * +__tls_get_addr (struct tls_index *ti) +{ + return ___tls_get_addr (ti); +} + + +/* Prepare using the definition of __tls_get_addr in the generic + version of this file. */ +#define __tls_get_addr __attribute__ ((__regparm__ (1))) ___tls_get_addr -- cgit v1.2.3-70-g09d2