X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bfd%2Felf32-i386.c;h=a751d9828569ab5d58f3e9c890e2df590ff7fcb6;hb=26e415943a5d0dd3577345b8141eff3a0276d93e;hp=f5b64771e370ed288d632ff827aac9088785c301;hpb=caf47ea6a36330e9a2501af480220435f8e180f6;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/elf32-i386.c b/bfd/elf32-i386.c index f5b64771e3..a751d98285 100644 --- a/bfd/elf32-i386.c +++ b/bfd/elf32-i386.c @@ -1,22 +1,22 @@ /* Intel 80386/80486-specific support for 32-bit ELF - Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 + Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. -This file is part of BFD, the Binary File Descriptor library. + This file is part of BFD, the Binary File Descriptor library. -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. -This program 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 General Public License for more details. + This program 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 General Public License for more details. -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "bfd.h" #include "sysdep.h" @@ -27,157 +27,167 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ static reloc_howto_type *elf_i386_reloc_type_lookup PARAMS ((bfd *, bfd_reloc_code_real_type)); static void elf_i386_info_to_howto - PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *)); + PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); static void elf_i386_info_to_howto_rel - PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *)); -static boolean elf_i386_is_local_label_name + PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); +static bfd_boolean elf_i386_is_local_label_name PARAMS ((bfd *, const char *)); -static boolean elf_i386_grok_prstatus +static bfd_boolean elf_i386_grok_prstatus PARAMS ((bfd *abfd, Elf_Internal_Note *note)); -static boolean elf_i386_grok_psinfo +static bfd_boolean elf_i386_grok_psinfo PARAMS ((bfd *abfd, Elf_Internal_Note *note)); static struct bfd_hash_entry *link_hash_newfunc PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); static struct bfd_link_hash_table *elf_i386_link_hash_table_create PARAMS ((bfd *)); -static boolean create_got_section - PARAMS((bfd *, struct bfd_link_info *)); -static boolean elf_i386_create_dynamic_sections - PARAMS((bfd *, struct bfd_link_info *)); +static bfd_boolean create_got_section + PARAMS ((bfd *, struct bfd_link_info *)); +static bfd_boolean elf_i386_create_dynamic_sections + PARAMS ((bfd *, struct bfd_link_info *)); static void elf_i386_copy_indirect_symbol - PARAMS ((struct elf_link_hash_entry *, struct elf_link_hash_entry *)); + PARAMS ((struct elf_backend_data *, struct elf_link_hash_entry *, + struct elf_link_hash_entry *)); static int elf_i386_tls_transition PARAMS ((struct bfd_link_info *, int, int)); -static boolean elf_i386_mkobject - PARAMS((bfd *)); -static boolean elf_i386_object_p - PARAMS((bfd *)); -static boolean elf_i386_check_relocs +static bfd_boolean elf_i386_mkobject + PARAMS ((bfd *)); +static bfd_boolean elf_i386_object_p + PARAMS ((bfd *)); +static bfd_boolean elf_i386_check_relocs PARAMS ((bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *)); static asection *elf_i386_gc_mark_hook - PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *, + PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *, struct elf_link_hash_entry *, Elf_Internal_Sym *)); -static boolean elf_i386_gc_sweep_hook +static bfd_boolean elf_i386_gc_sweep_hook PARAMS ((bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *)); -static boolean elf_i386_adjust_dynamic_symbol +static bfd_boolean elf_i386_adjust_dynamic_symbol PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); -static boolean allocate_dynrelocs +static bfd_boolean allocate_dynrelocs PARAMS ((struct elf_link_hash_entry *, PTR)); -static boolean readonly_dynrelocs +static bfd_boolean readonly_dynrelocs PARAMS ((struct elf_link_hash_entry *, PTR)); -static boolean elf_i386_fake_sections - PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *)); -static boolean elf_i386_size_dynamic_sections +static bfd_boolean elf_i386_fake_sections + PARAMS ((bfd *, Elf_Internal_Shdr *, asection *)); +static bfd_boolean elf_i386_size_dynamic_sections PARAMS ((bfd *, struct bfd_link_info *)); static bfd_vma dtpoff_base PARAMS ((struct bfd_link_info *)); static bfd_vma tpoff PARAMS ((struct bfd_link_info *, bfd_vma)); -static boolean elf_i386_relocate_section +static bfd_boolean elf_i386_relocate_section PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); -static boolean elf_i386_finish_dynamic_symbol +static bfd_boolean elf_i386_finish_dynamic_symbol PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, Elf_Internal_Sym *)); static enum elf_reloc_type_class elf_i386_reloc_type_class PARAMS ((const Elf_Internal_Rela *)); -static boolean elf_i386_finish_dynamic_sections +static bfd_boolean elf_i386_finish_dynamic_sections PARAMS ((bfd *, struct bfd_link_info *)); -#define USE_REL 1 /* 386 uses REL relocations instead of RELA */ +#define USE_REL 1 /* 386 uses REL relocations instead of RELA. */ #include "elf/i386.h" static reloc_howto_type elf_howto_table[]= { - HOWTO(R_386_NONE, 0, 0, 0, false, 0, complain_overflow_bitfield, + HOWTO(R_386_NONE, 0, 0, 0, FALSE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_NONE", - true, 0x00000000, 0x00000000, false), - HOWTO(R_386_32, 0, 2, 32, false, 0, complain_overflow_bitfield, + TRUE, 0x00000000, 0x00000000, FALSE), + HOWTO(R_386_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_32", - true, 0xffffffff, 0xffffffff, false), - HOWTO(R_386_PC32, 0, 2, 32, true, 0, complain_overflow_bitfield, + TRUE, 0xffffffff, 0xffffffff, FALSE), + HOWTO(R_386_PC32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_PC32", - true, 0xffffffff, 0xffffffff, true), - HOWTO(R_386_GOT32, 0, 2, 32, false, 0, complain_overflow_bitfield, + TRUE, 0xffffffff, 0xffffffff, TRUE), + HOWTO(R_386_GOT32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_GOT32", - true, 0xffffffff, 0xffffffff, false), - HOWTO(R_386_PLT32, 0, 2, 32, true, 0, complain_overflow_bitfield, + TRUE, 0xffffffff, 0xffffffff, FALSE), + HOWTO(R_386_PLT32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_PLT32", - true, 0xffffffff, 0xffffffff, true), - HOWTO(R_386_COPY, 0, 2, 32, false, 0, complain_overflow_bitfield, + TRUE, 0xffffffff, 0xffffffff, TRUE), + HOWTO(R_386_COPY, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_COPY", - true, 0xffffffff, 0xffffffff, false), - HOWTO(R_386_GLOB_DAT, 0, 2, 32, false, 0, complain_overflow_bitfield, + TRUE, 0xffffffff, 0xffffffff, FALSE), + HOWTO(R_386_GLOB_DAT, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_GLOB_DAT", - true, 0xffffffff, 0xffffffff, false), - HOWTO(R_386_JUMP_SLOT, 0, 2, 32, false, 0, complain_overflow_bitfield, + TRUE, 0xffffffff, 0xffffffff, FALSE), + HOWTO(R_386_JUMP_SLOT, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_JUMP_SLOT", - true, 0xffffffff, 0xffffffff, false), - HOWTO(R_386_RELATIVE, 0, 2, 32, false, 0, complain_overflow_bitfield, + TRUE, 0xffffffff, 0xffffffff, FALSE), + HOWTO(R_386_RELATIVE, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_RELATIVE", - true, 0xffffffff, 0xffffffff, false), - HOWTO(R_386_GOTOFF, 0, 2, 32, false, 0, complain_overflow_bitfield, + TRUE, 0xffffffff, 0xffffffff, FALSE), + HOWTO(R_386_GOTOFF, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_GOTOFF", - true, 0xffffffff, 0xffffffff, false), - HOWTO(R_386_GOTPC, 0, 2, 32, true, 0, complain_overflow_bitfield, + TRUE, 0xffffffff, 0xffffffff, FALSE), + HOWTO(R_386_GOTPC, 0, 2, 32, TRUE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_GOTPC", - true, 0xffffffff, 0xffffffff, true), + TRUE, 0xffffffff, 0xffffffff, TRUE), /* We have a gap in the reloc numbers here. R_386_standard counts the number up to this point, and R_386_ext_offset is the value to subtract from a reloc type of R_386_16 thru R_386_PC8 to form an index into this table. */ #define R_386_standard ((unsigned int) R_386_GOTPC + 1) -#define R_386_ext_offset ((unsigned int) R_386_TLS_LE - R_386_standard) - - /* The remaining relocs are a GNU extension. */ - HOWTO(R_386_TLS_LE, 0, 2, 32, false, 0, complain_overflow_bitfield, +#define R_386_ext_offset ((unsigned int) R_386_TLS_TPOFF - R_386_standard) + + /* These relocs are a GNU extension. */ + HOWTO(R_386_TLS_TPOFF, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, + bfd_elf_generic_reloc, "R_386_TLS_TPOFF", + TRUE, 0xffffffff, 0xffffffff, FALSE), + HOWTO(R_386_TLS_IE, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, + bfd_elf_generic_reloc, "R_386_TLS_IE", + TRUE, 0xffffffff, 0xffffffff, FALSE), + HOWTO(R_386_TLS_GOTIE, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, + bfd_elf_generic_reloc, "R_386_TLS_GOTIE", + TRUE, 0xffffffff, 0xffffffff, FALSE), + HOWTO(R_386_TLS_LE, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_TLS_LE", - true, 0xffffffff, 0xffffffff, false), - HOWTO(R_386_TLS_GD, 0, 2, 32, false, 0, complain_overflow_bitfield, + TRUE, 0xffffffff, 0xffffffff, FALSE), + HOWTO(R_386_TLS_GD, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_TLS_GD", - true, 0xffffffff, 0xffffffff, false), - HOWTO(R_386_TLS_LDM, 0, 2, 32, false, 0, complain_overflow_bitfield, + TRUE, 0xffffffff, 0xffffffff, FALSE), + HOWTO(R_386_TLS_LDM, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_TLS_LDM", - true, 0xffffffff, 0xffffffff, false), - HOWTO(R_386_16, 0, 1, 16, false, 0, complain_overflow_bitfield, + TRUE, 0xffffffff, 0xffffffff, FALSE), + HOWTO(R_386_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_16", - true, 0xffff, 0xffff, false), - HOWTO(R_386_PC16, 0, 1, 16, true, 0, complain_overflow_bitfield, + TRUE, 0xffff, 0xffff, FALSE), + HOWTO(R_386_PC16, 0, 1, 16, TRUE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_PC16", - true, 0xffff, 0xffff, true), - HOWTO(R_386_8, 0, 0, 8, false, 0, complain_overflow_bitfield, + TRUE, 0xffff, 0xffff, TRUE), + HOWTO(R_386_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_8", - true, 0xff, 0xff, false), - HOWTO(R_386_PC8, 0, 0, 8, true, 0, complain_overflow_signed, + TRUE, 0xff, 0xff, FALSE), + HOWTO(R_386_PC8, 0, 0, 8, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_386_PC8", - true, 0xff, 0xff, true), + TRUE, 0xff, 0xff, TRUE), #define R_386_ext ((unsigned int) R_386_PC8 + 1 - R_386_ext_offset) #define R_386_tls_offset ((unsigned int) R_386_TLS_LDO_32 - R_386_ext) /* These are common with Solaris TLS implementation. */ - HOWTO(R_386_TLS_LDO_32, 0, 2, 32, false, 0, complain_overflow_bitfield, + HOWTO(R_386_TLS_LDO_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_TLS_LDO_32", - true, 0xffffffff, 0xffffffff, false), - HOWTO(R_386_TLS_IE_32, 0, 2, 32, false, 0, complain_overflow_bitfield, + TRUE, 0xffffffff, 0xffffffff, FALSE), + HOWTO(R_386_TLS_IE_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_TLS_IE_32", - true, 0xffffffff, 0xffffffff, false), - HOWTO(R_386_TLS_LE_32, 0, 2, 32, false, 0, complain_overflow_bitfield, + TRUE, 0xffffffff, 0xffffffff, FALSE), + HOWTO(R_386_TLS_LE_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_TLS_LE_32", - true, 0xffffffff, 0xffffffff, false), - HOWTO(R_386_TLS_DTPMOD32, 0, 2, 32, false, 0, complain_overflow_bitfield, + TRUE, 0xffffffff, 0xffffffff, FALSE), + HOWTO(R_386_TLS_DTPMOD32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_TLS_DTPMOD32", - true, 0xffffffff, 0xffffffff, false), - HOWTO(R_386_TLS_DTPOFF32, 0, 2, 32, false, 0, complain_overflow_bitfield, + TRUE, 0xffffffff, 0xffffffff, FALSE), + HOWTO(R_386_TLS_DTPOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_TLS_DTPOFF32", - true, 0xffffffff, 0xffffffff, false), - HOWTO(R_386_TLS_TPOFF32, 0, 2, 32, false, 0, complain_overflow_bitfield, + TRUE, 0xffffffff, 0xffffffff, FALSE), + HOWTO(R_386_TLS_TPOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_386_TLS_TPOFF32", - true, 0xffffffff, 0xffffffff, false), + TRUE, 0xffffffff, 0xffffffff, FALSE), /* Another gap. */ #define R_386_tls ((unsigned int) R_386_TLS_TPOFF32 + 1 - R_386_tls_offset) @@ -188,30 +198,30 @@ static reloc_howto_type elf_howto_table[]= 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 0, /* bitsize */ - false, /* pc_relative */ + FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ NULL, /* special_function */ "R_386_GNU_VTINHERIT", /* name */ - false, /* partial_inplace */ + FALSE, /* partial_inplace */ 0, /* src_mask */ 0, /* dst_mask */ - false), /* pcrel_offset */ + FALSE), /* pcrel_offset */ /* GNU extension to record C++ vtable member usage. */ HOWTO (R_386_GNU_VTENTRY, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 0, /* bitsize */ - false, /* pc_relative */ + FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ _bfd_elf_rel_vtable_reloc_fn, /* special_function */ "R_386_GNU_VTENTRY", /* name */ - false, /* partial_inplace */ + FALSE, /* partial_inplace */ 0, /* src_mask */ 0, /* dst_mask */ - false) /* pcrel_offset */ + FALSE) /* pcrel_offset */ #define R_386_vt ((unsigned int) R_386_GNU_VTENTRY + 1 - R_386_vt_offset) @@ -278,7 +288,19 @@ elf_i386_reloc_type_lookup (abfd, code) TRACE ("BFD_RELOC_386_GOTPC"); return &elf_howto_table[(unsigned int) R_386_GOTPC ]; - /* The remaining relocs are a GNU extension. */ + /* These relocs are a GNU extension. */ + case BFD_RELOC_386_TLS_TPOFF: + TRACE ("BFD_RELOC_386_TLS_TPOFF"); + return &elf_howto_table[(unsigned int) R_386_TLS_TPOFF - R_386_ext_offset]; + + case BFD_RELOC_386_TLS_IE: + TRACE ("BFD_RELOC_386_TLS_IE"); + return &elf_howto_table[(unsigned int) R_386_TLS_IE - R_386_ext_offset]; + + case BFD_RELOC_386_TLS_GOTIE: + TRACE ("BFD_RELOC_386_TLS_GOTIE"); + return &elf_howto_table[(unsigned int) R_386_TLS_GOTIE - R_386_ext_offset]; + case BFD_RELOC_386_TLS_LE: TRACE ("BFD_RELOC_386_TLS_LE"); return &elf_howto_table[(unsigned int) R_386_TLS_LE - R_386_ext_offset]; @@ -352,9 +374,9 @@ elf_i386_reloc_type_lookup (abfd, code) static void elf_i386_info_to_howto (abfd, cache_ptr, dst) - bfd *abfd ATTRIBUTE_UNUSED; - arelent *cache_ptr ATTRIBUTE_UNUSED; - Elf32_Internal_Rela *dst ATTRIBUTE_UNUSED; + bfd *abfd ATTRIBUTE_UNUSED; + arelent *cache_ptr ATTRIBUTE_UNUSED; + Elf_Internal_Rela *dst ATTRIBUTE_UNUSED; { abort (); } @@ -363,7 +385,7 @@ static void elf_i386_info_to_howto_rel (abfd, cache_ptr, dst) bfd *abfd ATTRIBUTE_UNUSED; arelent *cache_ptr; - Elf32_Internal_Rel *dst; + Elf_Internal_Rela *dst; { unsigned int r_type = ELF32_R_TYPE (dst->r_info); unsigned int indx; @@ -389,19 +411,19 @@ elf_i386_info_to_howto_rel (abfd, cache_ptr, dst) If so, we should move the .X recognition into _bfd_elf_is_local_label_name. */ -static boolean +static bfd_boolean elf_i386_is_local_label_name (abfd, name) bfd *abfd; const char *name; { if (name[0] == '.' && name[1] == 'X') - return true; + return TRUE; return _bfd_elf_is_local_label_name (abfd, name); } /* Support for core dump NOTE sections. */ -static boolean +static bfd_boolean elf_i386_grok_prstatus (abfd, note) bfd *abfd; Elf_Internal_Note *note; @@ -412,7 +434,7 @@ elf_i386_grok_prstatus (abfd, note) switch (note->descsz) { default: - return false; + return FALSE; case 144: /* Linux/i386 */ /* pr_cursig */ @@ -433,7 +455,7 @@ elf_i386_grok_prstatus (abfd, note) raw_size, note->descpos + offset); } -static boolean +static bfd_boolean elf_i386_grok_psinfo (abfd, note) bfd *abfd; Elf_Internal_Note *note; @@ -441,7 +463,7 @@ elf_i386_grok_psinfo (abfd, note) switch (note->descsz) { default: - return false; + return FALSE; case 124: /* Linux/i386 elf_prpsinfo */ elf_tdata (abfd)->core_program @@ -462,7 +484,7 @@ elf_i386_grok_psinfo (abfd, note) command[n - 1] = '\0'; } - return true; + return TRUE; } /* Functions for the i386 ELF linker. @@ -563,9 +585,14 @@ struct elf_i386_link_hash_entry /* Track dynamic relocs copied for this symbol. */ struct elf_i386_dyn_relocs *dyn_relocs; - enum { - GOT_UNKNOWN = 0, GOT_NORMAL, GOT_TLS_GD, GOT_TLS_IE - } tls_type; +#define GOT_UNKNOWN 0 +#define GOT_NORMAL 1 +#define GOT_TLS_GD 2 +#define GOT_TLS_IE 4 +#define GOT_TLS_IE_POS 5 +#define GOT_TLS_IE_NEG 6 +#define GOT_TLS_IE_BOTH 7 + unsigned char tls_type; }; #define elf_i386_hash_entry(ent) ((struct elf_i386_link_hash_entry *)(ent)) @@ -584,18 +611,18 @@ struct elf_i386_obj_tdata #define elf_i386_local_got_tls_type(abfd) \ (elf_i386_tdata (abfd)->local_got_tls_type) -static boolean +static bfd_boolean elf_i386_mkobject (abfd) bfd *abfd; { bfd_size_type amt = sizeof (struct elf_i386_obj_tdata); abfd->tdata.any = bfd_zalloc (abfd, amt); if (abfd->tdata.any == NULL) - return false; - return true; + return FALSE; + return TRUE; } - -static boolean + +static bfd_boolean elf_i386_object_p (abfd) bfd *abfd; { @@ -604,10 +631,10 @@ elf_i386_object_p (abfd) bfd_size_type amt = sizeof (struct elf_i386_obj_tdata); new_tdata = bfd_zalloc (abfd, amt); if (new_tdata == NULL) - return false; + return FALSE; new_tdata->root = *abfd->tdata.elf_obj_data; abfd->tdata.any = new_tdata; - return true; + return TRUE; } /* i386 ELF linker hash table. */ @@ -697,6 +724,7 @@ elf_i386_link_hash_table_create (abfd) ret->srelplt = NULL; ret->sdynbss = NULL; ret->srelbss = NULL; + ret->tls_ldm_got.refcount = 0; ret->sym_sec.abfd = NULL; return &ret->elf.root; @@ -705,7 +733,7 @@ elf_i386_link_hash_table_create (abfd) /* Create .got, .gotplt, and .rel.got sections in DYNOBJ, and set up shortcuts to them in our hash table. */ -static boolean +static bfd_boolean create_got_section (dynobj, info) bfd *dynobj; struct bfd_link_info *info; @@ -713,7 +741,7 @@ create_got_section (dynobj, info) struct elf_i386_link_hash_table *htab; if (! _bfd_elf_create_got_section (dynobj, info)) - return false; + return FALSE; htab = elf_i386_hash_table (info); htab->sgot = bfd_get_section_by_name (dynobj, ".got"); @@ -728,15 +756,15 @@ create_got_section (dynobj, info) | SEC_IN_MEMORY | SEC_LINKER_CREATED | SEC_READONLY)) || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2)) - return false; - return true; + return FALSE; + return TRUE; } /* Create .plt, .rel.plt, .got, .got.plt, .rel.got, .dynbss, and .rel.bss sections in DYNOBJ, and set up shortcuts to them in our hash table. */ -static boolean +static bfd_boolean elf_i386_create_dynamic_sections (dynobj, info) bfd *dynobj; struct bfd_link_info *info; @@ -745,10 +773,10 @@ elf_i386_create_dynamic_sections (dynobj, info) htab = elf_i386_hash_table (info); if (!htab->sgot && !create_got_section (dynobj, info)) - return false; + return FALSE; if (!_bfd_elf_create_dynamic_sections (dynobj, info)) - return false; + return FALSE; htab->splt = bfd_get_section_by_name (dynobj, ".plt"); htab->srelplt = bfd_get_section_by_name (dynobj, ".rel.plt"); @@ -760,13 +788,14 @@ elf_i386_create_dynamic_sections (dynobj, info) || (!info->shared && !htab->srelbss)) abort (); - return true; + return TRUE; } /* Copy the extra info we tack onto an elf_link_hash_entry. */ static void -elf_i386_copy_indirect_symbol (dir, ind) +elf_i386_copy_indirect_symbol (bed, dir, ind) + struct elf_backend_data *bed; struct elf_link_hash_entry *dir, *ind; { struct elf_i386_link_hash_entry *edir, *eind; @@ -808,7 +837,13 @@ elf_i386_copy_indirect_symbol (dir, ind) eind->dyn_relocs = NULL; } - _bfd_elf_link_hash_copy_indirect (dir, ind); + if (ind->root.type == bfd_link_hash_indirect + && dir->got.refcount <= 0) + { + edir->tls_type = eind->tls_type; + eind->tls_type = GOT_UNKNOWN; + } + _bfd_elf_link_hash_copy_indirect (bed, dir, ind); } static int @@ -827,6 +862,11 @@ elf_i386_tls_transition (info, r_type, is_local) if (is_local) return R_386_TLS_LE_32; return R_386_TLS_IE_32; + case R_386_TLS_IE: + case R_386_TLS_GOTIE: + if (is_local) + return R_386_TLS_LE_32; + return r_type; case R_386_TLS_LDM: return R_386_TLS_LE_32; } @@ -838,7 +878,7 @@ elf_i386_tls_transition (info, r_type, is_local) calculate needed space in the global offset table, procedure linkage table, and dynamic reloc sections. */ -static boolean +static bfd_boolean elf_i386_check_relocs (abfd, info, sec, relocs) bfd *abfd; struct bfd_link_info *info; @@ -853,7 +893,7 @@ elf_i386_check_relocs (abfd, info, sec, relocs) asection *sreloc; if (info->relocateable) - return true; + return TRUE; htab = elf_i386_hash_table (info); symtab_hdr = &elf_tdata (abfd)->symtab_hdr; @@ -876,7 +916,7 @@ elf_i386_check_relocs (abfd, info, sec, relocs) (*_bfd_error_handler) (_("%s: bad symbol index: %d"), bfd_archive_filename (abfd), r_symndx); - return false; + return FALSE; } if (r_symndx < symtab_hdr->sh_info) @@ -888,10 +928,34 @@ elf_i386_check_relocs (abfd, info, sec, relocs) switch (r_type) { + case R_386_TLS_LDM: + htab->tls_ldm_got.refcount += 1; + goto create_got; + + case R_386_PLT32: + /* This symbol requires a procedure linkage table entry. We + actually build the entry in adjust_dynamic_symbol, + because this might be a case of linking PIC code which is + never referenced by a dynamic object, in which case we + don't need to generate a procedure linkage table entry + after all. */ + + /* If this is a local symbol, we resolve it directly without + creating a procedure linkage table entry. */ + if (h == NULL) + continue; + + h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; + h->plt.refcount += 1; + break; + case R_386_TLS_IE_32: + case R_386_TLS_IE: + case R_386_TLS_GOTIE: if (info->shared) info->flags |= DF_STATIC_TLS; - /* FALLTHROUGH */ + /* Fall through */ + case R_386_GOT32: case R_386_TLS_GD: /* This symbol requires a global offset table entry. */ @@ -903,7 +967,17 @@ elf_i386_check_relocs (abfd, info, sec, relocs) default: case R_386_GOT32: tls_type = GOT_NORMAL; break; case R_386_TLS_GD: tls_type = GOT_TLS_GD; break; - case R_386_TLS_IE_32: tls_type = GOT_TLS_IE; break; + case R_386_TLS_IE_32: + if (ELF32_R_TYPE (rel->r_info) == r_type) + tls_type = GOT_TLS_IE_NEG; + else + /* If this is a GD->IE transition, we may use either of + R_386_TLS_TPOFF and R_386_TLS_TPOFF32. */ + tls_type = GOT_TLS_IE; + break; + case R_386_TLS_IE: + case R_386_TLS_GOTIE: + tls_type = GOT_TLS_IE_POS; break; } if (h != NULL) @@ -926,7 +1000,7 @@ elf_i386_check_relocs (abfd, info, sec, relocs) local_got_refcounts = ((bfd_signed_vma *) bfd_zalloc (abfd, size)); if (local_got_refcounts == NULL) - return false; + return FALSE; elf_local_got_refcounts (abfd) = local_got_refcounts; elf_i386_local_got_tls_type (abfd) = (char *) (local_got_refcounts + symtab_hdr->sh_info); @@ -935,19 +1009,23 @@ elf_i386_check_relocs (abfd, info, sec, relocs) old_tls_type = elf_i386_local_got_tls_type (abfd) [r_symndx]; } + if ((old_tls_type & GOT_TLS_IE) && (tls_type & GOT_TLS_IE)) + tls_type |= old_tls_type; /* If a TLS symbol is accessed using IE at least once, there is no point to use dynamic model for it. */ - if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN - && (old_tls_type != GOT_TLS_GD || tls_type != GOT_TLS_IE)) + else if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN + && (old_tls_type != GOT_TLS_GD + || (tls_type & GOT_TLS_IE) == 0)) { - if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD) - tls_type = GOT_TLS_IE; + if ((old_tls_type & GOT_TLS_IE) && tls_type == GOT_TLS_GD) + tls_type = old_tls_type; else { (*_bfd_error_handler) (_("%s: `%s' accessed both as normal and thread local symbol"), - bfd_archive_filename (abfd), h->root.root.string); - return false; + bfd_archive_filename (abfd), + h ? h->root.root.string : ""); + return FALSE; } } @@ -969,30 +1047,18 @@ elf_i386_check_relocs (abfd, info, sec, relocs) if (htab->elf.dynobj == NULL) htab->elf.dynobj = abfd; if (!create_got_section (htab->elf.dynobj, info)) - return false; + return FALSE; } - break; - - case R_386_TLS_LDM: - htab->tls_ldm_got.refcount += 1; - goto create_got; - - case R_386_PLT32: - /* This symbol requires a procedure linkage table entry. We - actually build the entry in adjust_dynamic_symbol, - because this might be a case of linking PIC code which is - never referenced by a dynamic object, in which case we - don't need to generate a procedure linkage table entry - after all. */ - - /* If this is a local symbol, we resolve it directly without - creating a procedure linkage table entry. */ - if (h == NULL) - continue; + if (r_type != R_386_TLS_IE) + break; + /* Fall through */ - h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; - h->plt.refcount += 1; - break; + case R_386_TLS_LE_32: + case R_386_TLS_LE: + if (!info->shared) + break; + info->flags |= DF_STATIC_TLS; + /* Fall through */ case R_386_32: case R_386_PC32: @@ -1062,7 +1128,7 @@ elf_i386_check_relocs (abfd, info, sec, relocs) name = bfd_elf_string_from_elf_section (abfd, strndx, shnam); if (name == NULL) - return false; + return FALSE; if (strncmp (name, ".rel", 4) != 0 || strcmp (bfd_get_section_name (abfd, sec), @@ -1090,7 +1156,7 @@ elf_i386_check_relocs (abfd, info, sec, relocs) if (sreloc == NULL || ! bfd_set_section_flags (dynobj, sreloc, flags) || ! bfd_set_section_alignment (dynobj, sreloc, 2)) - return false; + return FALSE; } elf_section_data (sec)->sreloc = sreloc; } @@ -1111,7 +1177,7 @@ elf_i386_check_relocs (abfd, info, sec, relocs) s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec, r_symndx); if (s == NULL) - return false; + return FALSE; head = ((struct elf_i386_dyn_relocs **) &elf_section_data (s)->local_dynrel); @@ -1124,7 +1190,7 @@ elf_i386_check_relocs (abfd, info, sec, relocs) p = ((struct elf_i386_dyn_relocs *) bfd_alloc (htab->elf.dynobj, amt)); if (p == NULL) - return false; + return FALSE; p->next = *head; *head = p; p->sec = sec; @@ -1142,24 +1208,14 @@ elf_i386_check_relocs (abfd, info, sec, relocs) Reconstruct it for later use during GC. */ case R_386_GNU_VTINHERIT: if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) - return false; + return FALSE; break; /* This relocation describes which C++ vtable entries are actually used. Record for later use during GC. */ case R_386_GNU_VTENTRY: if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_offset)) - return false; - break; - - case R_386_TLS_LE_32: - case R_386_TLS_LE: - if (info->shared) - { - (*_bfd_error_handler) (_("%s: TLS local exec code cannot be linked into shared objects"), - bfd_archive_filename (abfd)); - return false; - } + return FALSE; break; default: @@ -1167,15 +1223,15 @@ elf_i386_check_relocs (abfd, info, sec, relocs) } } - return true; + return TRUE; } /* Return the section that should be marked against GC for a given relocation. */ static asection * -elf_i386_gc_mark_hook (abfd, info, rel, h, sym) - bfd *abfd; +elf_i386_gc_mark_hook (sec, info, rel, h, sym) + asection *sec; struct bfd_link_info *info ATTRIBUTE_UNUSED; Elf_Internal_Rela *rel; struct elf_link_hash_entry *h; @@ -1205,16 +1261,14 @@ elf_i386_gc_mark_hook (abfd, info, rel, h, sym) } } else - { - return bfd_section_from_elf_index (abfd, sym->st_shndx); - } + return bfd_section_from_elf_index (sec->owner, sym->st_shndx); return NULL; } /* Update the got entry reference counts for the section being removed. */ -static boolean +static bfd_boolean elf_i386_gc_sweep_hook (abfd, info, sec, relocs) bfd *abfd; struct bfd_link_info *info; @@ -1225,8 +1279,6 @@ elf_i386_gc_sweep_hook (abfd, info, sec, relocs) struct elf_link_hash_entry **sym_hashes; bfd_signed_vma *local_got_refcounts; const Elf_Internal_Rela *rel, *relend; - unsigned long r_symndx; - struct elf_link_hash_entry *h; elf_section_data (sec)->local_dynrel = NULL; @@ -1236,76 +1288,76 @@ elf_i386_gc_sweep_hook (abfd, info, sec, relocs) relend = relocs + sec->reloc_count; for (rel = relocs; rel < relend; rel++) - switch (elf_i386_tls_transition (info, ELF32_R_TYPE (rel->r_info), - ELF32_R_SYM (rel->r_info) - >= symtab_hdr->sh_info)) - { - case R_386_TLS_LDM: - if (elf_i386_hash_table (info)->tls_ldm_got.refcount > 0) - elf_i386_hash_table (info)->tls_ldm_got.refcount -= 1; - break; + { + unsigned long r_symndx; + unsigned int r_type; + struct elf_link_hash_entry *h = NULL; - case R_386_TLS_GD: - case R_386_TLS_IE_32: - case R_386_GOT32: - r_symndx = ELF32_R_SYM (rel->r_info); - if (r_symndx >= symtab_hdr->sh_info) - { - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - if (h->got.refcount > 0) - h->got.refcount -= 1; - } - else if (local_got_refcounts != NULL) - { - if (local_got_refcounts[r_symndx] > 0) - local_got_refcounts[r_symndx] -= 1; - } - break; + r_symndx = ELF32_R_SYM (rel->r_info); + if (r_symndx >= symtab_hdr->sh_info) + { + struct elf_i386_link_hash_entry *eh; + struct elf_i386_dyn_relocs **pp; + struct elf_i386_dyn_relocs *p; - case R_386_32: - case R_386_PC32: - r_symndx = ELF32_R_SYM (rel->r_info); - if (r_symndx >= symtab_hdr->sh_info) - { - struct elf_i386_link_hash_entry *eh; - struct elf_i386_dyn_relocs **pp; - struct elf_i386_dyn_relocs *p; + h = sym_hashes[r_symndx - symtab_hdr->sh_info]; + eh = (struct elf_i386_link_hash_entry *) h; - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; + for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) + if (p->sec == sec) + { + /* Everything must go for SEC. */ + *pp = p->next; + break; + } + } - if (!info->shared && h->plt.refcount > 0) - h->plt.refcount -= 1; + r_type = ELF32_R_TYPE (rel->r_info); + r_type = elf_i386_tls_transition (info, r_type, h != NULL); + switch (r_type) + { + case R_386_TLS_LDM: + if (elf_i386_hash_table (info)->tls_ldm_got.refcount > 0) + elf_i386_hash_table (info)->tls_ldm_got.refcount -= 1; + break; - eh = (struct elf_i386_link_hash_entry *) h; + case R_386_TLS_GD: + case R_386_TLS_IE_32: + case R_386_TLS_IE: + case R_386_TLS_GOTIE: + case R_386_GOT32: + if (h != NULL) + { + if (h->got.refcount > 0) + h->got.refcount -= 1; + } + else if (local_got_refcounts != NULL) + { + if (local_got_refcounts[r_symndx] > 0) + local_got_refcounts[r_symndx] -= 1; + } + break; - for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) - if (p->sec == sec) - { - if (ELF32_R_TYPE (rel->r_info) == R_386_PC32) - p->pc_count -= 1; - p->count -= 1; - if (p->count == 0) - *pp = p->next; - break; - } - } - break; + case R_386_32: + case R_386_PC32: + if (info->shared) + break; + /* Fall through */ - case R_386_PLT32: - r_symndx = ELF32_R_SYM (rel->r_info); - if (r_symndx >= symtab_hdr->sh_info) - { - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - if (h->plt.refcount > 0) - h->plt.refcount -= 1; - } - break; + case R_386_PLT32: + if (h != NULL) + { + if (h->plt.refcount > 0) + h->plt.refcount -= 1; + } + break; - default: - break; - } + default: + break; + } + } - return true; + return TRUE; } /* Adjust a symbol defined by a dynamic object and referenced by a @@ -1314,7 +1366,7 @@ elf_i386_gc_sweep_hook (abfd, info, sec, relocs) change the definition to something the rest of the link can understand. */ -static boolean +static bfd_boolean elf_i386_adjust_dynamic_symbol (info, h) struct bfd_link_info *info; struct elf_link_hash_entry *h; @@ -1347,7 +1399,7 @@ elf_i386_adjust_dynamic_symbol (info, h) h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; } - return true; + return TRUE; } else /* It's possible that we incorrectly decided a .plt reloc was @@ -1366,7 +1418,7 @@ elf_i386_adjust_dynamic_symbol (info, h) || h->weakdef->root.type == bfd_link_hash_defweak); h->root.u.def.section = h->weakdef->root.u.def.section; h->root.u.def.value = h->weakdef->root.u.def.value; - return true; + return TRUE; } /* This is a reference to a symbol defined by a dynamic object which @@ -1377,18 +1429,18 @@ elf_i386_adjust_dynamic_symbol (info, h) For such cases we need not do anything here; the relocations will be handled correctly by relocate_section. */ if (info->shared) - return true; + return TRUE; /* If there are no references to this symbol that do not use the GOT, we don't need to generate a copy reloc. */ if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) - return true; + return TRUE; /* If -z nocopyreloc was given, we won't generate them either. */ if (info->nocopyreloc) { h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; - return true; + return TRUE; } eh = (struct elf_i386_link_hash_entry *) h; @@ -1400,11 +1452,11 @@ elf_i386_adjust_dynamic_symbol (info, h) } /* If we didn't find any dynamic relocs in read-only sections, then - we'll be keeping the dynamic relocs and avoiding the copy reloc. */ + we'll be keeping the dynamic relocs and avoiding the copy reloc. */ if (p == NULL) { h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; - return true; + return TRUE; } /* We must allocate the symbol in our .dynbss section, which will @@ -1440,7 +1492,7 @@ elf_i386_adjust_dynamic_symbol (info, h) if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) { if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) - return false; + return FALSE; } /* Define the symbol as being at this point in the section. */ @@ -1450,16 +1502,16 @@ elf_i386_adjust_dynamic_symbol (info, h) /* Increment the section size to make room for the symbol. */ s->_raw_size += h->size; - return true; + return TRUE; } /* This is the condition under which elf_i386_finish_dynamic_symbol will be called from elflink.h. If elflink.h doesn't call our finish_dynamic_symbol routine, we'll need to do something about initializing any .plt and .got entries in elf_i386_relocate_section. */ -#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \ +#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \ ((DYN) \ - && ((INFO)->shared \ + && ((SHARED) \ || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ && ((H)->dynindx != -1 \ || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) @@ -1467,7 +1519,7 @@ elf_i386_adjust_dynamic_symbol (info, h) /* Allocate space in .plt, .got and associated reloc sections for dynamic relocs. */ -static boolean +static bfd_boolean allocate_dynrelocs (h, inf) struct elf_link_hash_entry *h; PTR inf; @@ -1478,7 +1530,7 @@ allocate_dynrelocs (h, inf) struct elf_i386_dyn_relocs *p; if (h->root.type == bfd_link_hash_indirect) - return true; + return TRUE; if (h->root.type == bfd_link_hash_warning) /* When warning symbols are created, they **replace** the "real" @@ -1498,10 +1550,11 @@ allocate_dynrelocs (h, inf) && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) { if (! bfd_elf32_link_record_dynamic_symbol (info, h)) - return false; + return FALSE; } - if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h)) + if (info->shared + || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)) { asection *s = htab->splt; @@ -1546,17 +1599,17 @@ allocate_dynrelocs (h, inf) h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; } - /* If R_386_TLS_IE_32 symbol is now local to the binary, + /* If R_386_TLS_{IE_32,IE,GOTIE} symbol is now local to the binary, make it a R_386_TLS_LE_32 requiring no TLS entry. */ if (h->got.refcount > 0 && !info->shared && h->dynindx == -1 - && elf_i386_hash_entry(h)->tls_type == GOT_TLS_IE) - h->got.offset = (bfd_vma) -1; + && (elf_i386_hash_entry(h)->tls_type & GOT_TLS_IE)) + h->got.offset = (bfd_vma) -1; else if (h->got.refcount > 0) { asection *s; - boolean dyn; + bfd_boolean dyn; int tls_type = elf_i386_hash_entry(h)->tls_type; /* Make sure this symbol is output as a dynamic symbol. @@ -1565,24 +1618,30 @@ allocate_dynrelocs (h, inf) && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) { if (! bfd_elf32_link_record_dynamic_symbol (info, h)) - return false; + return FALSE; } s = htab->sgot; h->got.offset = s->_raw_size; s->_raw_size += 4; /* R_386_TLS_GD needs 2 consecutive GOT slots. */ - if (tls_type == GOT_TLS_GD) + if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE_BOTH) s->_raw_size += 4; dyn = htab->elf.dynamic_sections_created; /* R_386_TLS_IE_32 needs one dynamic relocation, - R_386_TLS_GD needs one if local symbol and two if global. */ - if ((tls_type == GOT_TLS_GD && h->dynindx == -1) - || tls_type == GOT_TLS_IE) + R_386_TLS_IE resp. R_386_TLS_GOTIE needs one dynamic relocation, + (but if both R_386_TLS_IE_32 and R_386_TLS_IE is present, we + need two), R_386_TLS_GD needs one if local symbol and two if + global. */ + if (tls_type == GOT_TLS_IE_BOTH) + htab->srelgot->_raw_size += 2 * sizeof (Elf32_External_Rel); + else if ((tls_type == GOT_TLS_GD && h->dynindx == -1) + || (tls_type & GOT_TLS_IE)) htab->srelgot->_raw_size += sizeof (Elf32_External_Rel); else if (tls_type == GOT_TLS_GD) htab->srelgot->_raw_size += 2 * sizeof (Elf32_External_Rel); - else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h)) + else if (info->shared + || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) htab->srelgot->_raw_size += sizeof (Elf32_External_Rel); } else @@ -1590,7 +1649,7 @@ allocate_dynrelocs (h, inf) eh = (struct elf_i386_link_hash_entry *) h; if (eh->dyn_relocs == NULL) - return true; + return TRUE; /* In the shared -Bsymbolic case, discard space allocated for dynamic pc-relative relocs against symbols which turn out to be @@ -1636,7 +1695,7 @@ allocate_dynrelocs (h, inf) && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) { if (! bfd_elf32_link_record_dynamic_symbol (info, h)) - return false; + return FALSE; } /* If that succeeded, we know we'll be keeping all the @@ -1657,12 +1716,12 @@ allocate_dynrelocs (h, inf) sreloc->_raw_size += p->count * sizeof (Elf32_External_Rel); } - return true; + return TRUE; } /* Find any dynamic relocs that apply to read-only sections. */ -static boolean +static bfd_boolean readonly_dynrelocs (h, inf) struct elf_link_hash_entry *h; PTR inf; @@ -1685,15 +1744,15 @@ readonly_dynrelocs (h, inf) info->flags |= DF_TEXTREL; /* Not an error, just cut short the traversal. */ - return false; + return FALSE; } } - return true; + return TRUE; } /* Set the sizes of the dynamic sections. */ -static boolean +static bfd_boolean elf_i386_size_dynamic_sections (output_bfd, info) bfd *output_bfd ATTRIBUTE_UNUSED; struct bfd_link_info *info; @@ -1701,7 +1760,7 @@ elf_i386_size_dynamic_sections (output_bfd, info) struct elf_i386_link_hash_table *htab; bfd *dynobj; asection *s; - boolean relocs; + bfd_boolean relocs; bfd *ibfd; htab = elf_i386_hash_table (info); @@ -1779,12 +1838,18 @@ elf_i386_size_dynamic_sections (output_bfd, info) { *local_got = s->_raw_size; s->_raw_size += 4; - if (*local_tls_type == GOT_TLS_GD) + if (*local_tls_type == GOT_TLS_GD + || *local_tls_type == GOT_TLS_IE_BOTH) s->_raw_size += 4; if (info->shared || *local_tls_type == GOT_TLS_GD - || *local_tls_type == GOT_TLS_IE) - srel->_raw_size += sizeof (Elf32_External_Rel); + || (*local_tls_type & GOT_TLS_IE)) + { + if (*local_tls_type == GOT_TLS_IE_BOTH) + srel->_raw_size += 2 * sizeof (Elf32_External_Rel); + else + srel->_raw_size += sizeof (Elf32_External_Rel); + } } else *local_got = (bfd_vma) -1; @@ -1808,7 +1873,7 @@ elf_i386_size_dynamic_sections (output_bfd, info) /* We now have determined the sizes of the various dynamic sections. Allocate memory for them. */ - relocs = false; + relocs = FALSE; for (s = dynobj->sections; s != NULL; s = s->next) { if ((s->flags & SEC_LINKER_CREATED) == 0) @@ -1824,7 +1889,7 @@ elf_i386_size_dynamic_sections (output_bfd, info) else if (strncmp (bfd_get_section_name (dynobj, s), ".rel", 4) == 0) { if (s->_raw_size != 0 && s != htab->srelplt) - relocs = true; + relocs = TRUE; /* We use the reloc_count field as a counter if we need to copy relocs into the output file. */ @@ -1859,7 +1924,7 @@ elf_i386_size_dynamic_sections (output_bfd, info) of garbage. */ s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); if (s->contents == NULL) - return false; + return FALSE; } if (htab->elf.dynamic_sections_created) @@ -1875,7 +1940,7 @@ elf_i386_size_dynamic_sections (output_bfd, info) if (! info->shared) { if (!add_dynamic_entry (DT_DEBUG, 0)) - return false; + return FALSE; } if (htab->splt->_raw_size != 0) @@ -1884,7 +1949,7 @@ elf_i386_size_dynamic_sections (output_bfd, info) || !add_dynamic_entry (DT_PLTRELSZ, 0) || !add_dynamic_entry (DT_PLTREL, DT_REL) || !add_dynamic_entry (DT_JMPREL, 0)) - return false; + return FALSE; } if (relocs) @@ -1892,7 +1957,7 @@ elf_i386_size_dynamic_sections (output_bfd, info) if (!add_dynamic_entry (DT_REL, 0) || !add_dynamic_entry (DT_RELSZ, 0) || !add_dynamic_entry (DT_RELENT, sizeof (Elf32_External_Rel))) - return false; + return FALSE; /* If any dynamic relocs apply to a read-only section, then we need a DT_TEXTREL entry. */ @@ -1903,22 +1968,22 @@ elf_i386_size_dynamic_sections (output_bfd, info) if ((info->flags & DF_TEXTREL) != 0) { if (!add_dynamic_entry (DT_TEXTREL, 0)) - return false; + return FALSE; } } } #undef add_dynamic_entry - return true; + return TRUE; } /* Set the correct type for an x86 ELF section. We do this by the section name, which is a hack, but ought to work. */ -static boolean +static bfd_boolean elf_i386_fake_sections (abfd, hdr, sec) bfd *abfd ATTRIBUTE_UNUSED; - Elf32_Internal_Shdr *hdr; + Elf_Internal_Shdr *hdr; asection *sec; { register const char *name; @@ -1944,7 +2009,7 @@ elf_i386_fake_sections (abfd, hdr, sec) if (strcmp (name, ".reloc") == 0) hdr->sh_type = SHT_PROGBITS; - return true; + return TRUE; } /* Return the base VMA address which should be subtracted from real addresses @@ -1955,7 +2020,9 @@ static bfd_vma dtpoff_base (info) struct bfd_link_info *info; { - BFD_ASSERT (elf_hash_table (info)->tls_segment != NULL); + /* If tls_segment is NULL, we should have signalled an error already. */ + if (elf_hash_table (info)->tls_segment == NULL) + return 0; return elf_hash_table (info)->tls_segment->start; } @@ -1970,14 +2037,16 @@ tpoff (info, address) struct elf_link_tls_segment *tls_segment = elf_hash_table (info)->tls_segment; - BFD_ASSERT (tls_segment != NULL); + /* If tls_segment is NULL, we should have signalled an error already. */ + if (tls_segment == NULL) + return 0; return (align_power (tls_segment->size, tls_segment->align) + tls_segment->start - address); } /* Relocate an i386 ELF section. */ -static boolean +static bfd_boolean elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, contents, relocs, local_syms, local_sections) bfd *output_bfd; @@ -2013,7 +2082,7 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, asection *sec; bfd_vma off; bfd_vma relocation; - boolean unresolved_reloc; + bfd_boolean unresolved_reloc; bfd_reloc_status_type r; unsigned int indx; int tls_type; @@ -2030,7 +2099,7 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, >= R_386_tls - R_386_ext)) { bfd_set_error (bfd_error_bad_value); - return false; + return FALSE; } howto = elf_howto_table + indx; @@ -2083,7 +2152,7 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, h = NULL; sym = NULL; sec = NULL; - unresolved_reloc = false; + unresolved_reloc = FALSE; if (r_symndx < symtab_hdr->sh_info) { sym = local_syms + r_symndx; @@ -2171,7 +2240,7 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, relocation value for this symbol. output_section is typically NULL for symbols satisfied by a shared library. */ - unresolved_reloc = true; + unresolved_reloc = TRUE; else relocation = (h->root.u.def.value + sec->output_section->vma @@ -2180,7 +2249,6 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, else if (h->root.type == bfd_link_hash_undefweak) ; else if (info->shared - && (!info->symbolic || info->allow_shlib_undefined) && !info->no_undefined && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) ; @@ -2191,7 +2259,7 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, input_section, rel->r_offset, (!info->shared || info->no_undefined || ELF_ST_VISIBILITY (h->other))))) - return false; + return FALSE; } } @@ -2205,11 +2273,11 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, if (h != NULL) { - boolean dyn; + bfd_boolean dyn; off = h->got.offset; dyn = htab->elf.dynamic_sections_created; - if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h) + if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) || (info->shared && (info->symbolic || h->dynindx == -1 @@ -2238,7 +2306,7 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, } } else - unresolved_reloc = false; + unresolved_reloc = FALSE; } else { @@ -2259,20 +2327,20 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, if (info->shared) { - asection *srelgot; - Elf_Internal_Rel outrel; - Elf32_External_Rel *loc; + asection *s; + Elf_Internal_Rela outrel; + bfd_byte *loc; - srelgot = htab->srelgot; - if (srelgot == NULL) + s = htab->srelgot; + if (s == NULL) abort (); outrel.r_offset = (htab->sgot->output_section->vma + htab->sgot->output_offset + off); outrel.r_info = ELF32_R_INFO (0, R_386_RELATIVE); - loc = (Elf32_External_Rel *) srelgot->contents; - loc += srelgot->reloc_count++; + loc = s->contents; + loc += s->reloc_count++ * sizeof (Elf32_External_Rel); bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); } @@ -2301,7 +2369,7 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, case R_386_GOTPC: /* Use global offset table as symbol value. */ relocation = htab->sgot->output_section->vma; - unresolved_reloc = false; + unresolved_reloc = FALSE; break; case R_386_PLT32: @@ -2325,7 +2393,7 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, relocation = (htab->splt->output_section->vma + htab->splt->output_offset + h->plt.offset); - unresolved_reloc = false; + unresolved_reloc = FALSE; break; case R_386_32: @@ -2355,25 +2423,25 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, || h->root.type == bfd_link_hash_undefweak || h->root.type == bfd_link_hash_undefined))) { - Elf_Internal_Rel outrel; - boolean skip, relocate; + Elf_Internal_Rela outrel; + bfd_byte *loc; + bfd_boolean skip, relocate; asection *sreloc; - Elf32_External_Rel *loc; /* When generating a shared object, these relocations are copied into the output file to be resolved at run time. */ - skip = false; - relocate = false; + skip = FALSE; + relocate = FALSE; outrel.r_offset = _bfd_elf_section_offset (output_bfd, info, input_section, rel->r_offset); if (outrel.r_offset == (bfd_vma) -1) - skip = true; + skip = TRUE; else if (outrel.r_offset == (bfd_vma) -2) - skip = true, relocate = true; + skip = TRUE, relocate = TRUE; outrel.r_offset += (input_section->output_section->vma + input_section->output_offset); @@ -2390,7 +2458,7 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, else { /* This symbol is local, or marked to become local. */ - relocate = true; + relocate = TRUE; outrel.r_info = ELF32_R_INFO (0, R_386_RELATIVE); } @@ -2398,8 +2466,8 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, if (sreloc == NULL) abort (); - loc = (Elf32_External_Rel *) sreloc->contents; - loc += sreloc->reloc_count++; + loc = sreloc->contents; + loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rel); bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); /* If this reloc is against an external symbol, we do @@ -2411,8 +2479,29 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, } break; + case R_386_TLS_IE: + if (info->shared) + { + Elf_Internal_Rela outrel; + bfd_byte *loc; + asection *sreloc; + + outrel.r_offset = rel->r_offset + + input_section->output_section->vma + + input_section->output_offset; + outrel.r_info = ELF32_R_INFO (0, R_386_RELATIVE); + sreloc = elf_section_data (input_section)->sreloc; + if (sreloc == NULL) + abort (); + loc = sreloc->contents; + loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rel); + bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); + } + /* Fall through */ + case R_386_TLS_GD: case R_386_TLS_IE_32: + case R_386_TLS_GOTIE: r_type = elf_i386_tls_transition (info, r_type, h == NULL); tls_type = GOT_UNKNOWN; if (h == NULL && local_got_offsets) @@ -2420,15 +2509,22 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, else if (h != NULL) { tls_type = elf_i386_hash_entry(h)->tls_type; - if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE) + if (!info->shared && h->dynindx == -1 && (tls_type & GOT_TLS_IE)) r_type = R_386_TLS_LE_32; } - if (r_type == R_386_TLS_GD && tls_type == GOT_TLS_IE) - r_type = R_386_TLS_IE_32; + if (tls_type == GOT_TLS_IE) + tls_type = GOT_TLS_IE_NEG; + if (r_type == R_386_TLS_GD) + { + if (tls_type == GOT_TLS_IE_POS) + r_type = R_386_TLS_GOTIE; + else if (tls_type & GOT_TLS_IE) + r_type = R_386_TLS_IE_32; + } if (r_type == R_386_TLS_LE_32) { - BFD_ASSERT (unresolved_reloc == false); + BFD_ASSERT (! unresolved_reloc); if (ELF32_R_TYPE (rel->r_info) == R_386_TLS_GD) { unsigned int val, type; @@ -2492,27 +2588,81 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, rel++; continue; } - else + else if (ELF32_R_TYPE (rel->r_info) == R_386_TLS_IE) { unsigned int val, type; /* IE->LE transition: - Originally it can be either: + Originally it can be one of: + movl foo, %eax + movl foo, %reg + addl foo, %reg + We change it into: + movl $foo, %eax + movl $foo, %reg + addl $foo, %reg. */ + BFD_ASSERT (rel->r_offset >= 1); + val = bfd_get_8 (input_bfd, contents + rel->r_offset - 1); + BFD_ASSERT (rel->r_offset + 4 <= input_section->_raw_size); + if (val == 0xa1) + { + /* movl foo, %eax. */ + bfd_put_8 (output_bfd, 0xb8, contents + rel->r_offset - 1); + } + else + { + BFD_ASSERT (rel->r_offset >= 2); + type = bfd_get_8 (input_bfd, contents + rel->r_offset - 2); + switch (type) + { + case 0x8b: + /* movl */ + BFD_ASSERT ((val & 0xc7) == 0x05); + bfd_put_8 (output_bfd, 0xc7, + contents + rel->r_offset - 2); + bfd_put_8 (output_bfd, + 0xc0 | ((val >> 3) & 7), + contents + rel->r_offset - 1); + break; + case 0x03: + /* addl */ + BFD_ASSERT ((val & 0xc7) == 0x05); + bfd_put_8 (output_bfd, 0x81, + contents + rel->r_offset - 2); + bfd_put_8 (output_bfd, + 0xc0 | ((val >> 3) & 7), + contents + rel->r_offset - 1); + break; + default: + BFD_FAIL (); + break; + } + } + bfd_put_32 (output_bfd, -tpoff (info, relocation), + contents + rel->r_offset); + continue; + } + else + { + unsigned int val, type; + + /* {IE_32,GOTIE}->LE transition: + Originally it can be one of: subl foo(%reg1), %reg2 - or movl foo(%reg1), %reg2 + addl foo(%reg1), %reg2 We change it into: subl $foo, %reg2 - or - movl $foo, %reg2 (6 byte form) */ + movl $foo, %reg2 (6 byte form) + addl $foo, %reg2. */ BFD_ASSERT (rel->r_offset >= 2); type = bfd_get_8 (input_bfd, contents + rel->r_offset - 2); val = bfd_get_8 (input_bfd, contents + rel->r_offset - 1); BFD_ASSERT (rel->r_offset + 4 <= input_section->_raw_size); + BFD_ASSERT ((val & 0xc0) == 0x80 && (val & 7) != 4); if (type == 0x8b) { /* movl */ - BFD_ASSERT ((val & 0xc0) == 0x80 && (val & 7) != 4); bfd_put_8 (output_bfd, 0xc7, contents + rel->r_offset - 2); bfd_put_8 (output_bfd, 0xc0 | ((val >> 3) & 7), @@ -2521,16 +2671,27 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, else if (type == 0x2b) { /* subl */ - BFD_ASSERT ((val & 0xc0) == 0x80 && (val & 7) != 4); bfd_put_8 (output_bfd, 0x81, contents + rel->r_offset - 2); bfd_put_8 (output_bfd, 0xe8 | ((val >> 3) & 7), contents + rel->r_offset - 1); } + else if (type == 0x03) + { + /* addl */ + bfd_put_8 (output_bfd, 0x81, + contents + rel->r_offset - 2); + bfd_put_8 (output_bfd, 0xc0 | ((val >> 3) & 7), + contents + rel->r_offset - 1); + } else BFD_FAIL (); - bfd_put_32 (output_bfd, tpoff (info, relocation), - contents + rel->r_offset); + if (ELF32_R_TYPE (rel->r_info) == R_386_TLS_GOTIE) + bfd_put_32 (output_bfd, -tpoff (info, relocation), + contents + rel->r_offset); + else + bfd_put_32 (output_bfd, tpoff (info, relocation), + contents + rel->r_offset); continue; } } @@ -2550,10 +2711,10 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, if ((off & 1) != 0) off &= ~1; - else + else { - Elf_Internal_Rel outrel; - Elf32_External_Rel *loc; + Elf_Internal_Rela outrel; + bfd_byte *loc; int dr_type, indx; if (htab->srelgot == NULL) @@ -2562,23 +2723,32 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, outrel.r_offset = (htab->sgot->output_section->vma + htab->sgot->output_offset + off); - bfd_put_32 (output_bfd, 0, - htab->sgot->contents + off); indx = h && h->dynindx != -1 ? h->dynindx : 0; if (r_type == R_386_TLS_GD) dr_type = R_386_TLS_DTPMOD32; + else if (tls_type == GOT_TLS_IE_POS) + dr_type = R_386_TLS_TPOFF; else dr_type = R_386_TLS_TPOFF32; + if (dr_type == R_386_TLS_TPOFF && indx == 0) + bfd_put_32 (output_bfd, relocation - dtpoff_base (info), + htab->sgot->contents + off); + else if (dr_type == R_386_TLS_TPOFF32 && indx == 0) + bfd_put_32 (output_bfd, dtpoff_base (info) - relocation, + htab->sgot->contents + off); + else + bfd_put_32 (output_bfd, 0, + htab->sgot->contents + off); outrel.r_info = ELF32_R_INFO (indx, dr_type); - loc = (Elf32_External_Rel *) htab->srelgot->contents; - loc += htab->srelgot->reloc_count++; + loc = htab->srelgot->contents; + loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rel); bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); if (r_type == R_386_TLS_GD) { if (indx == 0) { - BFD_ASSERT (unresolved_reloc == false); + BFD_ASSERT (! unresolved_reloc); bfd_put_32 (output_bfd, relocation - dtpoff_base (info), htab->sgot->contents + off + 4); @@ -2591,11 +2761,21 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, R_386_TLS_DTPOFF32); outrel.r_offset += 4; htab->srelgot->reloc_count++; - loc++; - bfd_elf32_swap_reloc_out (output_bfd, &outrel, - loc); + loc += sizeof (Elf32_External_Rel); + bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); } } + else if (tls_type == GOT_TLS_IE_BOTH) + { + bfd_put_32 (output_bfd, + indx == 0 ? relocation - dtpoff_base (info) : 0, + htab->sgot->contents + off + 4); + outrel.r_info = ELF32_R_INFO (indx, R_386_TLS_TPOFF); + outrel.r_offset += 4; + htab->srelgot->reloc_count++; + loc += sizeof (Elf32_External_Rel); + bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); + } if (h != NULL) h->got.offset |= 1; @@ -2608,7 +2788,12 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, if (r_type == ELF32_R_TYPE (rel->r_info)) { relocation = htab->sgot->output_offset + off; - unresolved_reloc = false; + if ((r_type == R_386_TLS_IE || r_type == R_386_TLS_GOTIE) + && tls_type == GOT_TLS_IE_BOTH) + relocation += 4; + if (r_type == R_386_TLS_IE) + relocation += htab->sgot->output_section->vma; + unresolved_reloc = FALSE; } else { @@ -2653,6 +2838,17 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, memcpy (contents + roff, "\x65\xa1\0\0\0\0\x2b\x80\0\0\0", 12); contents[roff + 7] = 0x80 | (val & 7); + /* If foo is used only with foo@gotntpoff(%reg) and + foo@indntpoff, but not with foo@gottpoff(%reg), change + subl $foo@gottpoff(%reg), %eax + into: + addl $foo@gotntpoff(%reg), %eax. */ + if (r_type == R_386_TLS_GOTIE) + { + contents[roff + 6] = 0x03; + if (tls_type == GOT_TLS_IE_BOTH) + off += 4; + } bfd_put_32 (output_bfd, htab->sgot->output_offset + off, contents + roff + 8); /* Skip R_386_PLT32. */ @@ -2696,8 +2892,8 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, off &= ~1; else { - Elf_Internal_Rel outrel; - Elf32_External_Rel *loc; + Elf_Internal_Rela outrel; + bfd_byte *loc; if (htab->srelgot == NULL) abort (); @@ -2710,17 +2906,17 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, bfd_put_32 (output_bfd, 0, htab->sgot->contents + off + 4); outrel.r_info = ELF32_R_INFO (0, R_386_TLS_DTPMOD32); - loc = (Elf32_External_Rel *) htab->srelgot->contents; - loc += htab->srelgot->reloc_count++; + loc = htab->srelgot->contents; + loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rel); bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); htab->tls_ldm_got.offset |= 1; } relocation = htab->sgot->output_offset + off; - unresolved_reloc = false; + unresolved_reloc = FALSE; break; case R_386_TLS_LDO_32: - if (info->shared) + if (info->shared || (input_section->flags & SEC_CODE) == 0) relocation -= dtpoff_base (info); else /* When converting LDO to LE, we must negate. */ @@ -2728,32 +2924,63 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, break; case R_386_TLS_LE_32: - relocation = tpoff (info, relocation); - break; - case R_386_TLS_LE: - relocation = -tpoff (info, relocation); + if (info->shared) + { + Elf_Internal_Rela outrel; + asection *sreloc; + bfd_byte *loc; + int indx; + + outrel.r_offset = rel->r_offset + + input_section->output_section->vma + + input_section->output_offset; + if (h != NULL && h->dynindx != -1) + indx = h->dynindx; + else + indx = 0; + if (r_type == R_386_TLS_LE_32) + outrel.r_info = ELF32_R_INFO (indx, R_386_TLS_TPOFF32); + else + outrel.r_info = ELF32_R_INFO (indx, R_386_TLS_TPOFF); + sreloc = elf_section_data (input_section)->sreloc; + if (sreloc == NULL) + abort (); + loc = sreloc->contents; + loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rel); + bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); + if (indx) + continue; + else if (r_type == R_386_TLS_LE_32) + relocation = dtpoff_base (info) - relocation; + else + relocation -= dtpoff_base (info); + } + else if (r_type == R_386_TLS_LE_32) + relocation = tpoff (info, relocation); + else + relocation = -tpoff (info, relocation); break; default: break; } - /* FIXME: Why do we allow debugging sections to escape this error? - More importantly, why do we not emit dynamic relocs for - R_386_32 above in debugging sections (which are ! SEC_ALLOC)? - If we had emitted the dynamic reloc, we could remove the - fudge here. */ + /* Dynamic relocs are not propagated for SEC_DEBUGGING sections + because such sections are not SEC_ALLOC and thus ld.so will + not process them. */ if (unresolved_reloc - && !(info->shared - && (input_section->flags & SEC_DEBUGGING) != 0 + && !((input_section->flags & SEC_DEBUGGING) != 0 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0)) - (*_bfd_error_handler) - (_("%s(%s+0x%lx): unresolvable relocation against symbol `%s'"), - bfd_archive_filename (input_bfd), - bfd_get_section_name (input_bfd, input_section), - (long) rel->r_offset, - h->root.root.string); + { + (*_bfd_error_handler) + (_("%s(%s+0x%lx): unresolvable relocation against symbol `%s'"), + bfd_archive_filename (input_bfd), + bfd_get_section_name (input_bfd, input_section), + (long) rel->r_offset, + h->root.root.string); + return FALSE; + } r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, rel->r_offset, @@ -2771,7 +2998,7 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, symtab_hdr->sh_link, sym->st_name); if (name == NULL) - return false; + return FALSE; if (*name == '\0') name = bfd_section_name (input_bfd, sec); } @@ -2781,7 +3008,7 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, if (! ((*info->callbacks->reloc_overflow) (info, name, howto->name, (bfd_vma) 0, input_bfd, input_section, rel->r_offset))) - return false; + return FALSE; } else { @@ -2790,18 +3017,18 @@ elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, bfd_archive_filename (input_bfd), bfd_get_section_name (input_bfd, input_section), (long) rel->r_offset, name, (int) r); - return false; + return FALSE; } } } - return true; + return TRUE; } /* Finish up dynamic symbol handling. We set the contents of various dynamic sections here. */ -static boolean +static bfd_boolean elf_i386_finish_dynamic_symbol (output_bfd, info, h, sym) bfd *output_bfd; struct bfd_link_info *info; @@ -2816,8 +3043,8 @@ elf_i386_finish_dynamic_symbol (output_bfd, info, h, sym) { bfd_vma plt_index; bfd_vma got_offset; - Elf_Internal_Rel rel; - Elf32_External_Rel *loc; + Elf_Internal_Rela rel; + bfd_byte *loc; /* This symbol has an entry in the procedure linkage table. Set it up. */ @@ -2876,7 +3103,7 @@ elf_i386_finish_dynamic_symbol (output_bfd, info, h, sym) + htab->sgotplt->output_offset + got_offset); rel.r_info = ELF32_R_INFO (h->dynindx, R_386_JUMP_SLOT); - loc = (Elf32_External_Rel *) htab->srelplt->contents + plt_index; + loc = htab->srelplt->contents + plt_index * sizeof (Elf32_External_Rel); bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) @@ -2885,17 +3112,17 @@ elf_i386_finish_dynamic_symbol (output_bfd, info, h, sym) the .plt section. Leave the value alone. This is a clue for the dynamic linker, to make function pointer comparisons work between an application and shared - library. */ + library. */ sym->st_shndx = SHN_UNDEF; } } if (h->got.offset != (bfd_vma) -1 && elf_i386_hash_entry(h)->tls_type != GOT_TLS_GD - && elf_i386_hash_entry(h)->tls_type != GOT_TLS_IE) + && (elf_i386_hash_entry(h)->tls_type & GOT_TLS_IE) == 0) { - Elf_Internal_Rel rel; - Elf32_External_Rel *loc; + Elf_Internal_Rela rel; + bfd_byte *loc; /* This symbol has an entry in the global offset table. Set it up. */ @@ -2929,15 +3156,15 @@ elf_i386_finish_dynamic_symbol (output_bfd, info, h, sym) rel.r_info = ELF32_R_INFO (h->dynindx, R_386_GLOB_DAT); } - loc = (Elf32_External_Rel *) htab->srelgot->contents; - loc += htab->srelgot->reloc_count++; + loc = htab->srelgot->contents; + loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rel); bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); } if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) { - Elf_Internal_Rel rel; - Elf32_External_Rel *loc; + Elf_Internal_Rela rel; + bfd_byte *loc; /* This symbol needs a copy reloc. Set it up. */ @@ -2951,8 +3178,8 @@ elf_i386_finish_dynamic_symbol (output_bfd, info, h, sym) + h->root.u.def.section->output_section->vma + h->root.u.def.section->output_offset); rel.r_info = ELF32_R_INFO (h->dynindx, R_386_COPY); - loc = (Elf32_External_Rel *) htab->srelbss->contents; - loc += htab->srelbss->reloc_count++; + loc = htab->srelbss->contents; + loc += htab->srelbss->reloc_count++ * sizeof (Elf32_External_Rel); bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); } @@ -2961,7 +3188,7 @@ elf_i386_finish_dynamic_symbol (output_bfd, info, h, sym) || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) sym->st_shndx = SHN_ABS; - return true; + return TRUE; } /* Used to decide how to sort relocs in an optimal manner for the @@ -2986,7 +3213,7 @@ elf_i386_reloc_type_class (rela) /* Finish up the dynamic sections. */ -static boolean +static bfd_boolean elf_i386_finish_dynamic_sections (output_bfd, info) bfd *output_bfd; struct bfd_link_info *info; @@ -3025,15 +3252,13 @@ elf_i386_finish_dynamic_sections (output_bfd, info) break; case DT_JMPREL: - dyn.d_un.d_ptr = htab->srelplt->output_section->vma; + s = htab->srelplt; + dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; break; case DT_PLTRELSZ: - s = htab->srelplt->output_section; - if (s->_cooked_size != 0) - dyn.d_un.d_val = s->_cooked_size; - else - dyn.d_un.d_val = s->_raw_size; + s = htab->srelplt; + dyn.d_un.d_val = s->_raw_size; break; case DT_RELSZ: @@ -3042,18 +3267,23 @@ elf_i386_finish_dynamic_sections (output_bfd, info) included in the overall relocs (DT_REL). This is what Solaris does. However, UnixWare can not handle that case. Therefore, we override the DT_RELSZ entry - here to make it not include the JMPREL relocs. Since - the linker script arranges for .rel.plt to follow all - other relocation sections, we don't have to worry - about changing the DT_REL entry. */ - if (htab->srelplt != NULL) - { - s = htab->srelplt->output_section; - if (s->_cooked_size != 0) - dyn.d_un.d_val -= s->_cooked_size; - else - dyn.d_un.d_val -= s->_raw_size; - } + here to make it not include the JMPREL relocs. */ + s = htab->srelplt; + if (s == NULL) + continue; + dyn.d_un.d_val -= s->_raw_size; + break; + + case DT_REL: + /* We may not be using the standard ELF linker script. + If .rel.plt is the first .rel section, we adjust + DT_REL to not include it. */ + s = htab->srelplt; + if (s == NULL) + continue; + if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) + continue; + dyn.d_un.d_ptr += s->_raw_size; break; } @@ -3104,7 +3334,7 @@ elf_i386_finish_dynamic_sections (output_bfd, info) elf_section_data (htab->sgotplt->output_section)->this_hdr.sh_entsize = 4; } - return true; + return TRUE; } #define TARGET_LITTLE_SYM bfd_elf32_i386_vec @@ -3146,6 +3376,42 @@ elf_i386_finish_dynamic_sections (output_bfd, info) #define elf_backend_relocate_section elf_i386_relocate_section #define elf_backend_size_dynamic_sections elf_i386_size_dynamic_sections -#ifndef ELF32_I386_C_INCLUDED #include "elf32-target.h" + +/* FreeBSD support. */ + +#undef TARGET_LITTLE_SYM +#define TARGET_LITTLE_SYM bfd_elf32_i386_freebsd_vec +#undef TARGET_LITTLE_NAME +#define TARGET_LITTLE_NAME "elf32-i386-freebsd" + +/* The kernel recognizes executables as valid only if they carry a + "FreeBSD" label in the ELF header. So we put this label on all + executables and (for simplicity) also all other object files. */ + +static void elf_i386_post_process_headers + PARAMS ((bfd *, struct bfd_link_info *)); + +static void +elf_i386_post_process_headers (abfd, link_info) + bfd *abfd; + struct bfd_link_info *link_info ATTRIBUTE_UNUSED; +{ + Elf_Internal_Ehdr *i_ehdrp; + + i_ehdrp = elf_elfheader (abfd); + + /* Put an ABI label supported by FreeBSD >= 4.1. */ + i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_FREEBSD; +#ifdef OLD_FREEBSD_ABI_LABEL + /* The ABI label supported by FreeBSD <= 4.0 is quite nonstandard. */ + memcpy (&i_ehdrp->e_ident[EI_ABIVERSION], "FreeBSD", 8); #endif +} + +#undef elf_backend_post_process_headers +#define elf_backend_post_process_headers elf_i386_post_process_headers +#undef elf32_bed +#define elf32_bed elf32_i386_fbsd_bed + +#include "elf32-target.h"