3fb558781f
2002-02-06 Ulrich Drepper <drepper@redhat.com> * 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.
48 lines
1.8 KiB
C
48 lines
1.8 KiB
C
/* 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
|