From c9ff0187a63b6bc535c9febd2c2eb1c5a843b2c1 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Tue, 13 May 2008 05:41:30 +0000 Subject: Introduce TLS descriptors for i386 and x86_64. * include/inline-hashtab.h: New file, copied from 2005's libiberty, with fix for memory leak imported afterwards by Glauber de Oliveira Costa. * elf/tlsdeschtab.h: New file. * elf/dl-reloc.c (_dl_try_allocate_static_tls): Extract from... (_dl_allocate_static_tls): ... here. Rearrange failure path. (CHECK_STATIC_TLS): Move to... * elf/dynamic-link.h: ... this file. (TRY_STATIC_TLS): New macro. * elf/dl-conflict.c (CHECK_STATIC_TLS, TRY_STATIC_TLS): Override. * elf/elf.h (R_386_TLS_GOTDESC, R_386_TLS_DESC_CALL, R_386_TLS_DESC): Define. (R_X86_64_PC64, R_X86_GOTOFF64, R_X86_64_GOTPC32): Merge from binutils. (R_X86_64_GOTPC32_TLSDESC, R_X86_64_TLSDESC_CALL, R_X86_64_TLSDESC): Define. (R_386_NUM, R_X86_64_NUM): Adjust. * sysdeps/i386/Makefile (sysdep-dl-routines, sysdep_routines, systep-rtld-routines): Add tlsdesc and dl-tlsdesc for elf subdir. (gen-as-const-headers): Add tlsdesc.sym to csu subdir. * sysdeps/i386/dl-lookupcfg.h: New file. Introduce _dl_unmap to release tlsdesc_table. * sysdeps/i386/dl-machine.h: Include dl-tlsdesc.h. (elf_machine_type_class): Mark R_386_TLS_DESC as PLT class. (elf_machine_rel): Handle R_386_TLS_DESC. (elf_machine_rela): Likewise. (elf_machine_lazy_rel): Likewise. (elf_machine_lazy_rela): Likewise. * sysdeps/i386/dl-tls.h (struct dl_tls_index): Name it. * sysdeps/i386/dl-tlsdesc.S: New file. * sysdeps/i386/dl-tlsdesc.h: New file. * sysdeps/i386/tlsdesc.c: New file. * sysdeps/i386/tlsdesc.sym: New file. * sysdeps/i386/bits/linkmap.h (struct link_map_machine): Add tlsdesc_table. * sysdeps/x86_64/Makefile (sysdep-dl-routines, sysdep_routines, systep-rtld-routines): Add tlsdesc and dl-tlsdesc for elf subdir. (gen-as-const-headers): Add tlsdesc.sym to csu subdir. * sysdeps/x86_64/dl-lookupcfg.h: New file. Introduce _dl_unmap to release tlsdesc_table. * sysdeps/x86_64/dl-machine.h: Include dl-tlsdesc.h. (elf_machine_runtime_setup): Set up lazy TLSDESC GOT entry. (elf_machine_type_class): Mark R_X86_64_TLSDESC as PLT class. (elf_machine_rel): Handle R_X86_64_TLSDESC. (elf_machine_rela): Likewise. (elf_machine_lazy_rel): Likewise. * sysdeps/x86_64/dl-tls.h (struct dl_tls_index): Name it. (__tls_get_addr): Do not declare for non-shared compiles. * sysdeps/x86_64/dl-tlsdesc.S: New file. * sysdeps/x86_64/dl-tlsdesc.h: New file. * sysdeps/x86_64/tlsdesc.c: New file. * sysdeps/x86_64/tlsdesc.sym: New file. * sysdeps/x86_64/bits/linkmap.h (struct link_map_machine): Add tlsdesc_table for both 32- and 64-bit structs. --- elf/dl-conflict.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'elf/dl-conflict.c') diff --git a/elf/dl-conflict.c b/elf/dl-conflict.c index 9b49e77d28..b730105628 100644 --- a/elf/dl-conflict.c +++ b/elf/dl-conflict.c @@ -1,5 +1,5 @@ /* Resolve conflicts against already prelinked libraries. - Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. + Copyright (C) 2001, 2002, 2003, 2004, 2005, 2008 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Jakub Jelinek , 2001. @@ -44,7 +44,6 @@ _dl_resolve_conflicts (struct link_map *l, ElfW(Rela) *conflict, /* This macro is used as a callback from the ELF_DYNAMIC_RELOCATE code. */ #define RESOLVE_MAP(ref, version, flags) (*ref = NULL, NULL) #define RESOLVE(ref, version, flags) (*ref = NULL, 0) -#define CHECK_STATIC_TLS(ref_map, sym_map) ((void) 0) #define RESOLVE_CONFLICT_FIND_MAP(map, r_offset) \ do { \ while ((resolve_conflict_map->l_map_end < (ElfW(Addr)) (r_offset)) \ @@ -61,6 +60,12 @@ _dl_resolve_conflicts (struct link_map *l, ElfW(Rela) *conflict, #include "dynamic-link.h" + /* Override these, defined in dynamic-link.h. */ +#undef CHECK_STATIC_TLS +#define CHECK_STATIC_TLS(ref_map, sym_map) ((void) 0) +#undef TRY_STATIC_TLS +#define TRY_STATIC_TLS(ref_map, sym_map) (0) + GL(dl_num_cache_relocations) += conflictend - conflict; for (; conflict < conflictend; ++conflict) -- cgit v1.2.3