diff options
Diffstat (limited to 'bfd')
| -rw-r--r-- | bfd/ChangeLog | 9 | ||||
| -rw-r--r-- | bfd/elf-bfd.h | 28 | ||||
| -rw-r--r-- | bfd/elf.c | 34 | ||||
| -rw-r--r-- | bfd/elfxx-ia64.c | 127 | ||||
| -rw-r--r-- | bfd/elfxx-target.h | 30 |
5 files changed, 126 insertions, 102 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index dba71b5..93e19b0 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,12 @@ +2002-07-23 Nick Clifton <nickc@redhat.com> + + * elf-bfd.h (struct elf_backend_data): Add new bitfield + 'want_p_paddr_set_to_zero'. + * elfxx-target.h: Set default value for want_p_paddr_set_to_zero + to false; + * elfxx-ia64.c: Set want_p_paddr_set_zero for HPUX target. + * elf.c (copy_private_bfd_data): Test want_p_paddr_set_zero. + 2002-07-23 Gabor Keresztfalvi <keresztg@mail.com> * nlmcode.h (nlm_swap_auxiliary_headers_out): Swapped the order of diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h index c79919f..4623e78 100644 --- a/bfd/elf-bfd.h +++ b/bfd/elf-bfd.h @@ -3,21 +3,21 @@ 2002 Free Software Foundation, Inc. Written by Cygnus Support. -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. */ #ifndef _LIBELF_H_ #define _LIBELF_H_ 1 @@ -859,6 +859,10 @@ struct elf_backend_data unsigned can_refcount : 1; unsigned want_got_sym : 1; unsigned want_dynbss : 1; + /* Targets which do not support physical addressing often require + that the p_paddr field in the section header to be set to zero. + This field indicates whether this behavior is required. */ + unsigned want_p_paddr_set_to_zero : 1; }; /* Information stored for each BFD section in an ELF file. This @@ -2,21 +2,21 @@ Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 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. */ /* SECTION @@ -4813,9 +4813,10 @@ copy_private_bfd_data (ibfd, obfd) /* The Solaris native linker always sets p_paddr to 0. We try to catch that case here, and set it to the - correct value. */ + correct value. Note - some backends require that + p_paddr be left as zero. */ if (segment->p_paddr == 0 - && segment->p_vaddr != 0 + && (! bed->want_p_paddr_set_to_zero) && isec == 0 && output_section->lma != 0 && (output_section->vma == (segment->p_vaddr @@ -4832,7 +4833,10 @@ copy_private_bfd_data (ibfd, obfd) LMA address of the output section. */ if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) || IS_CONTAINED_BY_FILEPOS (section, segment, bed) - || IS_COREFILE_NOTE (segment, section)) + || IS_COREFILE_NOTE (segment, section) + || (bed->want_p_paddr_set_to_zero && + IS_CONTAINED_BY_VMA (output_section, segment)) + ) { if (matching_lma == 0) matching_lma = output_section->lma; diff --git a/bfd/elfxx-ia64.c b/bfd/elfxx-ia64.c index b63cfb0..6c7616b 100644 --- a/bfd/elfxx-ia64.c +++ b/bfd/elfxx-ia64.c @@ -2,21 +2,21 @@ Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. Contributed by David Mosberger-Tang <davidm@hpl.hp.com> -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" @@ -25,35 +25,33 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "opcode/ia64.h" #include "elf/ia64.h" -/* - * THE RULES for all the stuff the linker creates -- - * - * GOT Entries created in response to LTOFF or LTOFF_FPTR - * relocations. Dynamic relocs created for dynamic - * symbols in an application; REL relocs for locals - * in a shared library. - * - * FPTR The canonical function descriptor. Created for local - * symbols in applications. Descriptors for dynamic symbols - * and local symbols in shared libraries are created by - * ld.so. Thus there are no dynamic relocs against these - * objects. The FPTR relocs for such _are_ passed through - * to the dynamic relocation tables. - * - * FULL_PLT Created for a PCREL21B relocation against a dynamic symbol. - * Requires the creation of a PLTOFF entry. This does not - * require any dynamic relocations. - * - * PLTOFF Created by PLTOFF relocations. For local symbols, this - * is an alternate function descriptor, and in shared libraries - * requires two REL relocations. Note that this cannot be - * transformed into an FPTR relocation, since it must be in - * range of the GP. For dynamic symbols, this is a function - * descriptor for a MIN_PLT entry, and requires one IPLT reloc. - * - * MIN_PLT Created by PLTOFF entries against dynamic symbols. This - * does not reqire dynamic relocations. - */ +/* THE RULES for all the stuff the linker creates -- + + GOT Entries created in response to LTOFF or LTOFF_FPTR + relocations. Dynamic relocs created for dynamic + symbols in an application; REL relocs for locals + in a shared library. + + FPTR The canonical function descriptor. Created for local + symbols in applications. Descriptors for dynamic symbols + and local symbols in shared libraries are created by + ld.so. Thus there are no dynamic relocs against these + objects. The FPTR relocs for such _are_ passed through + to the dynamic relocation tables. + + FULL_PLT Created for a PCREL21B relocation against a dynamic symbol. + Requires the creation of a PLTOFF entry. This does not + require any dynamic relocations. + + PLTOFF Created by PLTOFF relocations. For local symbols, this + is an alternate function descriptor, and in shared libraries + requires two REL relocations. Note that this cannot be + transformed into an FPTR relocation, since it must be in + range of the GP. For dynamic symbols, this is a function + descriptor for a MIN_PLT entry, and requires one IPLT reloc. + + MIN_PLT Created by PLTOFF entries against dynamic symbols. This + does not reqire dynamic relocations. */ #define USE_RELA /* we want RELA relocs, not REL */ @@ -140,7 +138,7 @@ struct elfNN_ia64_link_hash_entry struct elfNN_ia64_link_hash_table { - /* The main hash table */ + /* The main hash table. */ struct elf_link_hash_table root; asection *got_sec; /* the linkage table section (or NULL) */ @@ -327,7 +325,7 @@ static void elfNN_hpux_post_process_headers boolean elfNN_hpux_backend_section_from_bfd_section PARAMS ((bfd *abfd, asection *sec, int *retval)); -/* ia64-specific relocation */ +/* ia64-specific relocation. */ /* Perform a relocation. Not much to do here as all the hard work is done in elfNN_ia64_final_link_relocate. */ @@ -461,7 +459,7 @@ static unsigned char elf_code_to_howto_index[R_IA64_MAX_RELOC_CODE + 1]; /* Given a BFD reloc type, return the matching HOWTO structure. */ -static reloc_howto_type* +static reloc_howto_type * lookup_howto (rtype) unsigned int rtype; { @@ -1087,24 +1085,22 @@ elfNN_ia64_fake_sections (abfd, hdr, sec) else if (strcmp (name, ".HP.opt_annot") == 0) hdr->sh_type = SHT_IA_64_HP_OPT_ANOT; else if (strcmp (name, ".reloc") == 0) - /* - * This is an ugly, but unfortunately necessary hack that is - * needed when producing EFI binaries on IA-64. It tells - * elf.c:elf_fake_sections() not to consider ".reloc" as a section - * containing ELF relocation info. We need this hack in order to - * be able to generate ELF binaries that can be translated into - * EFI applications (which are essentially COFF objects). Those - * files contain a COFF ".reloc" section inside an ELFNN object, - * which would normally cause BFD to segfault because it would - * attempt to interpret this section as containing relocation - * entries for section "oc". With this hack enabled, ".reloc" - * will be treated as a normal data section, which will avoid the - * segfault. However, you won't be able to create an ELFNN binary - * with a section named "oc" that needs relocations, but that's - * the kind of ugly side-effects you get when detecting section - * types based on their names... In practice, this limitation is - * unlikely to bite. - */ + /* This is an ugly, but unfortunately necessary hack that is + needed when producing EFI binaries on IA-64. It tells + elf.c:elf_fake_sections() not to consider ".reloc" as a section + containing ELF relocation info. We need this hack in order to + be able to generate ELF binaries that can be translated into + EFI applications (which are essentially COFF objects). Those + files contain a COFF ".reloc" section inside an ELFNN object, + which would normally cause BFD to segfault because it would + attempt to interpret this section as containing relocation + entries for section "oc". With this hack enabled, ".reloc" + will be treated as a normal data section, which will avoid the + segfault. However, you won't be able to create an ELFNN binary + with a section named "oc" that needs relocations, but that's + the kind of ugly side-effects you get when detecting section + types based on their names... In practice, this limitation is + unlikely to bite. */ hdr->sh_type = SHT_PROGBITS; if (sec->flags & SEC_SMALL_DATA) @@ -1510,6 +1506,8 @@ elfNN_ia64_dynamic_symbol_p (h, info) case STV_INTERNAL: case STV_HIDDEN: return false; + default: + break; } if (h->root.type == bfd_link_hash_undefweak @@ -4796,6 +4794,9 @@ elfNN_hpux_backend_section_from_bfd_section (abfd, sec, retval) #undef elf_backend_section_from_bfd_section #define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section +#undef elf_backend_want_p_paddr_set_to_zero +#define elf_backend_want_p_paddr_set_to_zero 1 + #undef ELF_MAXPAGESIZE #define ELF_MAXPAGESIZE 0x1000 /* 1K */ @@ -4803,3 +4804,5 @@ elfNN_hpux_backend_section_from_bfd_section (abfd, sec, retval) #define elfNN_bed elfNN_ia64_hpux_bed #include "elfNN-target.h" + +#undef elf_backend_want_p_paddr_set_to_zero diff --git a/bfd/elfxx-target.h b/bfd/elfxx-target.h index 369a44e..8da7256 100644 --- a/bfd/elfxx-target.h +++ b/bfd/elfxx-target.h @@ -2,21 +2,21 @@ Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 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. */ /* This structure contains everything that BFD knows about a target. It includes things like its byte order, name, what routines to call @@ -89,6 +89,9 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifndef elf_backend_want_dynbss #define elf_backend_want_dynbss 1 #endif +#ifndef elf_backend_want_p_paddr_set_to_zero +#define elf_backend_want_p_paddr_set_to_zero 0 +#endif #define bfd_elfNN_bfd_debug_info_start bfd_void #define bfd_elfNN_bfd_debug_info_end bfd_void @@ -519,7 +522,8 @@ static const struct elf_backend_data elfNN_bed = elf_backend_can_gc_sections, elf_backend_can_refcount, elf_backend_want_got_sym, - elf_backend_want_dynbss + elf_backend_want_dynbss, + elf_backend_want_p_paddr_set_to_zero }; #endif |