binutils-gdb/ld/ldmain.c

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/* Main program of GNU linker.
Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
2002, 2003, 2004
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Free Software Foundation, Inc.
Written by Steve Chamberlain steve@cygnus.com
2002-11-14 19:03:17 +01:00
This file is part of GLD, the Gnu Linker.
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GLD 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, or (at your option)
any later version.
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GLD 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.
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You should have received a copy of the GNU General Public License
along with GLD; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
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#include "bfd.h"
#include "sysdep.h"
#include <stdio.h>
#include "safe-ctype.h"
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#include "libiberty.h"
#include "progress.h"
#include "bfdlink.h"
#include "filenames.h"
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#include "ld.h"
#include "ldmain.h"
#include "ldmisc.h"
#include "ldwrite.h"
#include "ldexp.h"
#include "ldlang.h"
#include <ldgram.h>
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#include "ldlex.h"
#include "ldfile.h"
#include "ldemul.h"
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#include "ldctor.h"
/* Somewhere above, sys/stat.h got included. */
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#if !defined(S_ISDIR) && defined(S_IFDIR)
#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
#endif
#include <string.h>
#ifdef HAVE_SBRK
#ifdef NEED_DECLARATION_SBRK
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extern void *sbrk ();
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#endif
#endif
* Makefile.am (eelf32iq10.c): Fix tab/whitespace mixup. * Makefile.am (ldmain.o): Add @TARGET_SYSTEM_ROOT_DEFINE@. (GENSCRIPTS): Add @use_sysroot@. * Makefile.in: Regenerated. * configure.host: Move setting of NATIVE_LIB_DIRS to... * configure.tgt: ... here. Use ${target} instead of ${host} for NATIVE_LIB_DIRS. * configure.in: Add --with-sysroot. * configure: Regenerated. * genscripts.sh: Accept use_sysroot option. Set new variables NATIVE and USE_LIBPATH. Prepend "=" to directory names if $use_sysroot. Don't search $tool_lib if $use_sysroot. * ldfile.c (ldfile_add_library_path): Handle leading '='. * ldmain.c (TARGET_SYSTEM_ROOT): Define if not defined. (ld_sysroot): New variable. (main): Initialize ld_sysroot. * ldmain.h (ld_sysroot): New extern. * emultempl/elf32.em: Use NATIVE and USE_LIBPATH instead of searching $EMULATION_LIBPATH. (gld${EMULATION_NAME}_add_sysroot): New function. (gld${EMULATION_NAME}_check_ld_so_conf): Use it. Honor ld_sysroot. (gld${EMULATION_NAME}_after_open): Likewise. Only search environment variables if $NATIVE. * ld.texinfo (Options): Mention "=" prefix in the description of -L. * NEWS: Mention --with-sysroot. * emulparams/elf32bmipn32-defs.sh: Set NATIVE and LIBPATH_SUFFIX instead of setting LIB_PATH. * emulparams/elf32ppc.sh: Likewise. * emulparams/elf64_s390.sh: Likewise. * emulparams/elf64_sparc.sh: Likewise. * emulparams/elf64ppc.sh: Likewise. * emulparams/elf_x86_64.sh: Likewise. * emulparams/elf64_aix.sh: Add "=" prefixes to LIB_PATH. * emulparams/elf64hppa.sh: Add "=" prefixes to LIB_PATH.
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#ifndef TARGET_SYSTEM_ROOT
#define TARGET_SYSTEM_ROOT ""
#endif
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/* EXPORTS */
char *default_target;
const char *output_filename = "a.out";
/* Name this program was invoked by. */
char *program_name;
* Makefile.am (eelf32iq10.c): Fix tab/whitespace mixup. * Makefile.am (ldmain.o): Add @TARGET_SYSTEM_ROOT_DEFINE@. (GENSCRIPTS): Add @use_sysroot@. * Makefile.in: Regenerated. * configure.host: Move setting of NATIVE_LIB_DIRS to... * configure.tgt: ... here. Use ${target} instead of ${host} for NATIVE_LIB_DIRS. * configure.in: Add --with-sysroot. * configure: Regenerated. * genscripts.sh: Accept use_sysroot option. Set new variables NATIVE and USE_LIBPATH. Prepend "=" to directory names if $use_sysroot. Don't search $tool_lib if $use_sysroot. * ldfile.c (ldfile_add_library_path): Handle leading '='. * ldmain.c (TARGET_SYSTEM_ROOT): Define if not defined. (ld_sysroot): New variable. (main): Initialize ld_sysroot. * ldmain.h (ld_sysroot): New extern. * emultempl/elf32.em: Use NATIVE and USE_LIBPATH instead of searching $EMULATION_LIBPATH. (gld${EMULATION_NAME}_add_sysroot): New function. (gld${EMULATION_NAME}_check_ld_so_conf): Use it. Honor ld_sysroot. (gld${EMULATION_NAME}_after_open): Likewise. Only search environment variables if $NATIVE. * ld.texinfo (Options): Mention "=" prefix in the description of -L. * NEWS: Mention --with-sysroot. * emulparams/elf32bmipn32-defs.sh: Set NATIVE and LIBPATH_SUFFIX instead of setting LIB_PATH. * emulparams/elf32ppc.sh: Likewise. * emulparams/elf64_s390.sh: Likewise. * emulparams/elf64_sparc.sh: Likewise. * emulparams/elf64ppc.sh: Likewise. * emulparams/elf_x86_64.sh: Likewise. * emulparams/elf64_aix.sh: Add "=" prefixes to LIB_PATH. * emulparams/elf64hppa.sh: Add "=" prefixes to LIB_PATH.
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/* The prefix for system library directories. */
char *ld_sysroot;
/* The canonical representation of ld_sysroot. */
char * ld_canon_sysroot;
int ld_canon_sysroot_len;
/* The file that we're creating. */
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bfd *output_bfd = 0;
/* Set by -G argument, for MIPS ECOFF target. */
int g_switch_value = 8;
/* Nonzero means print names of input files as processed. */
bfd_boolean trace_files;
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/* Nonzero means same, but note open failures, too. */
bfd_boolean trace_file_tries;
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/* Nonzero means version number was printed, so exit successfully
instead of complaining if no input files are given. */
bfd_boolean version_printed;
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/* Nonzero means link in every member of an archive. */
bfd_boolean whole_archive;
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/* Nonzero means create DT_NEEDED entries only if a dynamic library
actually satisfies some reference in a regular object. */
bfd_boolean as_needed;
/* Nonzero means never create DT_NEEDED entries for dynamic libraries
in DT_NEEDED tags. */
bfd_boolean add_needed = TRUE;
/* TRUE if we should demangle symbol names. */
bfd_boolean demangling;
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args_type command_line;
ld_config_type config;
static char *get_emulation
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(int, char **);
static void set_scripts_dir
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(void);
static bfd_boolean add_archive_element
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(struct bfd_link_info *, bfd *, const char *);
static bfd_boolean multiple_definition
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(struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma,
bfd *, asection *, bfd_vma);
static bfd_boolean multiple_common
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(struct bfd_link_info *, const char *, bfd *, enum bfd_link_hash_type,
bfd_vma, bfd *, enum bfd_link_hash_type, bfd_vma);
static bfd_boolean add_to_set
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(struct bfd_link_info *, struct bfd_link_hash_entry *,
bfd_reloc_code_real_type, bfd *, asection *, bfd_vma);
static bfd_boolean constructor_callback
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(struct bfd_link_info *, bfd_boolean, const char *, bfd *,
asection *, bfd_vma);
static bfd_boolean warning_callback
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(struct bfd_link_info *, const char *, const char *, bfd *,
asection *, bfd_vma);
static void warning_find_reloc
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(bfd *, asection *, void *);
static bfd_boolean undefined_symbol
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(struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma,
bfd_boolean);
static bfd_boolean reloc_overflow
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(struct bfd_link_info *, const char *, const char *, bfd_vma,
bfd *, asection *, bfd_vma);
static bfd_boolean reloc_dangerous
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(struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma);
static bfd_boolean unattached_reloc
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(struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma);
static bfd_boolean notice
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(struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma);
static struct bfd_link_callbacks link_callbacks =
{
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add_archive_element,
multiple_definition,
multiple_common,
add_to_set,
constructor_callback,
warning_callback,
undefined_symbol,
reloc_overflow,
reloc_dangerous,
unattached_reloc,
bfd/ * bfd.c (_bfd_default_error_handler): Handle %A and %B. (bfd_archive_filename, bfd_get_section_ident): Delete. * ecofflink.c (bfd_ecoff_debug_accumulate_other): Don't call bfd_archive_filename. * elflink.c (elf_link_input_bfd): Don't use callbacks->error_handler to warn about symbols in discarded sections. Use _bfd_error_handler. * aout-adobe.c (aout_adobe_callback): See below. * aout-cris.c (swap_ext_reloc_in): .. * coff-arm.c (find_thumb_glue, find_arm_glue, coff_arm_relocate_section, bfd_arm_process_before_allocation, coff_arm_merge_private_bfd_data, _bfd_coff_arm_set_private_flags, coff_arm_copy_private_bfd_data): .. * coff-i860.c (i860_reloc_processing): .. * coff-mcore.c (mcore_coff_unsupported_reloc, coff_mcore_relocate_section): .. * coff-ppc.c (coff_ppc_relocate_section): .. * coff-rs6000.c (xcoff_create_csect_from_smclas * coff-sh.c (sh_relax_section, sh_relax_delete_bytes, sh_swap_insns, sh_relocate_section): .. * coff-tic54x.c (tic54x_reloc_processing): .. * coff-tic80.c (coff_tic80_relocate_section): .. * coff64-rs6000.c (xcoff64_create_csect_from_smclas): .. * coffcode.h (styp_to_sec_flags, coff_slurp_line_table, coff_slurp_symbol_table, coff_classify_symbol, coff_slurp_reloc_table): .. * coffgen.c (_bfd_coff_read_string_table): .. * cofflink.c (coff_link_add_symbols, _bfd_coff_link_input_bfd, _bfd_coff_generic_relocate_section): .. * cpu-arm.c (bfd_arm_merge_machines): .. * cpu-sh.c (sh_merge_bfd_arch): .. * elf-hppa.h (elf_hppa_relocate_section): .. * elf.c (bfd_elf_string_from_elf_section, setup_group, _bfd_elf_setup_group_pointers, bfd_section_from_shdr, assign_section_numbers, _bfd_elf_symbol_from_bfd_symbol, copy_private_bfd_data, _bfd_elf_validate_reloc): .. * elf32-arm.h (find_thumb_glue, find_arm_glue, bfd_elf32_arm_process_before_allocation, elf32_thumb_to_arm_stub, elf32_arm_to_thumb_stub, elf32_arm_final_link_relocate, elf32_arm_relocate_section, elf32_arm_set_private_flags, elf32_arm_copy_private_bfd_data, elf32_arm_merge_private_bfd_data): .. * elf32-cris.c (cris_elf_relocate_section, cris_elf_check_relocs, cris_elf_merge_private_bfd_data * elf32-frv.c (elf32_frv_relocate_section, elf32_frv_check_relocs): .. * elf32-gen.c (elf32_generic_link_add_symbols): .. * elf32-hppa.c (hppa_add_stub, hppa_build_one_stub, elf32_hppa_check_relocs, get_local_syms, final_link_relocate, elf32_hppa_relocate_section): .. * elf32-i370.c (i370_elf_merge_private_bfd_data, i370_elf_check_relocs, i370_elf_relocate_section): .. * elf32-i386.c (elf_i386_info_to_howto_rel, elf_i386_check_relocs, elf_i386_relocate_section): .. * elf32-m32r.c (m32r_elf_relocate_section, m32r_elf_merge_private_bfd_data): .. * elf32-m68hc1x.c (m68hc12_add_stub, _bfd_m68hc11_elf_merge_private_bfd_data): .. * elf32-m68k.c (elf_m68k_relocate_section): .. * elf32-mcore.c (mcore_elf_unsupported_reloc, mcore_elf_relocate_section): .. * elf32-ppc.c (ppc_elf_merge_private_bfd_data, bad_shared_reloc, ppc_elf_check_relocs, ppc_elf_relocate_section, ppc_elf_begin_write_processing): .. * elf32-s390.c (elf_s390_check_relocs, invalid_tls_insn, elf_s390_relocate_section): .. * elf32-sh-symbian.c (sh_symbian_import_as, sh_symbian_process_embedded_commands, sh_symbian_relocate_section): .. * elf32-sh.c (sh_elf_relax_section, sh_elf_relax_delete_bytes, sh_elf_swap_insns, sh_elf_relocate_section, sh_elf_check_relocs, sh_elf_merge_private_data): .. * elf32-sparc.c (elf32_sparc_check_relocs, elf32_sparc_relocate_section, elf32_sparc_merge_private_bfd_data): .. * elf32-v850.c (v850_elf_check_relocs, v850_elf_merge_private_bfd_data): .. * elf32-xtensa.c (elf_xtensa_check_relocs, elf_xtensa_relocate_section, elf_xtensa_merge_private_bfd_data): .. * elf64-alpha.c (elf64_alpha_relax_with_lituse, elf64_alpha_relax_got_load, elf64_alpha_size_got_sections, elf64_alpha_relocate_section_r, elf64_alpha_relocate_section): .. * elf64-gen.c (elf64_generic_link_add_symbols): .. * elf64-ppc.c (ppc64_elf_merge_private_bfd_data, ppc_add_stub, ppc64_elf_check_relocs, ppc64_elf_edit_opd, ppc64_elf_relocate_section): .. * elf64-s390.c (elf_s390_check_relocs, invalid_tls_insn, elf_s390_relocate_section): .. * elf64-sh64.c (sh_elf64_relocate_section): .. * elf64-sparc.c (sparc64_elf_check_relocs, sparc64_elf_add_symbol_hook, sparc64_elf_relocate_section, sparc64_elf_merge_private_bfd_data): .. * elf64-x86-64.c (elf64_x86_64_check_relocs, elf64_x86_64_relocate_section): .. * elflink.c (_bfd_elf_add_default_symbol, _bfd_elf_link_assign_sym_version, elf_link_read_relocs_from_section, _bfd_elf_link_output_relocs, elf_link_add_object_symbols, bfd_elf_size_dynamic_sections, elf_link_output_extsym, elf_get_linked_section_vma, elf_fixup_link_order, bfd_elf_final_link, bfd_elf_gc_record_vtinherit, bfd_elf_gc_record_vtinherit, _bfd_elf_section_already_linked): .. * elfxx-ia64.c (elfNN_ia64_relax_section, elfNN_ia64_relocate_section, elfNN_ia64_merge_private_bfd_data): .. * elfxx-mips.c (mips_elf_perform_relocation, _bfd_mips_elf_check_relocs, _bfd_mips_elf_merge_private_bfd_data): .. * ieee.c (ieee_slurp_external_symbols): .. * ihex.c (ihex_bad_byte, ihex_scan, ihex_read_section): .. * libbfd.c (_bfd_generic_verify_endian_match): .. * linker.c (_bfd_generic_link_add_one_symbol, _bfd_generic_section_already_linked): .. * pdp11.c (translate_to_native_sym_flags): .. * pe-mips.c (coff_pe_mips_relocate_section): .. * peicode.h (pe_ILF_build_a_bfd): .. * srec.c (srec_bad_byte): .. * stabs.c (_bfd_link_section_stabs): .. * xcofflink.c (xcoff_link_add_symbols, xcoff_link_input_bfd): .. Replace all uses of bfd_archive_filename and bfd_get_section_ident with corresponding %B and %A in _bfd_error_handler format string. Replace occurrences of "fprintf (stderr," with _bfd_error_handler calls to use %A and %B. Fix "against symbol .. from section" and similar error messages. Combine multiple _bfd_error_handler calls where they were separated due to bfd_archive_filename deficiencies. * bfd-in2.h: Regenerate. include/ * bfdlink.h (struct bfd_link_callbacks): Remove "error_handler". (LD_DEFINITION_IN_DISCARDED_SECTION): Delete. ld/ * ldmain.c (link_callbacks): Remove "error_handler". * ldmisc.c: Include elf-bfd.h. (vfinfo): Sort comment. Handle %A. Use %A instead of bfd_get_section_indent. (error_handler): Delete. * ldmisc.h (error_handler): Delete declaration.
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notice
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};
struct bfd_link_info link_info;
static void
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remove_output (void)
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{
if (output_filename)
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{
if (output_bfd)
bfd_cache_close (output_bfd);
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if (delete_output_file_on_failure)
unlink (output_filename);
}
}
int
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main (int argc, char **argv)
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{
char *emulation;
long start_time = get_run_time ();
#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
setlocale (LC_MESSAGES, "");
#endif
#if defined (HAVE_SETLOCALE)
setlocale (LC_CTYPE, "");
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#endif
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
program_name = argv[0];
xmalloc_set_program_name (program_name);
START_PROGRESS (program_name, 0);
bfd_init ();
bfd_set_error_program_name (program_name);
xatexit (remove_output);
* Makefile.am (eelf32iq10.c): Fix tab/whitespace mixup. * Makefile.am (ldmain.o): Add @TARGET_SYSTEM_ROOT_DEFINE@. (GENSCRIPTS): Add @use_sysroot@. * Makefile.in: Regenerated. * configure.host: Move setting of NATIVE_LIB_DIRS to... * configure.tgt: ... here. Use ${target} instead of ${host} for NATIVE_LIB_DIRS. * configure.in: Add --with-sysroot. * configure: Regenerated. * genscripts.sh: Accept use_sysroot option. Set new variables NATIVE and USE_LIBPATH. Prepend "=" to directory names if $use_sysroot. Don't search $tool_lib if $use_sysroot. * ldfile.c (ldfile_add_library_path): Handle leading '='. * ldmain.c (TARGET_SYSTEM_ROOT): Define if not defined. (ld_sysroot): New variable. (main): Initialize ld_sysroot. * ldmain.h (ld_sysroot): New extern. * emultempl/elf32.em: Use NATIVE and USE_LIBPATH instead of searching $EMULATION_LIBPATH. (gld${EMULATION_NAME}_add_sysroot): New function. (gld${EMULATION_NAME}_check_ld_so_conf): Use it. Honor ld_sysroot. (gld${EMULATION_NAME}_after_open): Likewise. Only search environment variables if $NATIVE. * ld.texinfo (Options): Mention "=" prefix in the description of -L. * NEWS: Mention --with-sysroot. * emulparams/elf32bmipn32-defs.sh: Set NATIVE and LIBPATH_SUFFIX instead of setting LIB_PATH. * emulparams/elf32ppc.sh: Likewise. * emulparams/elf64_s390.sh: Likewise. * emulparams/elf64_sparc.sh: Likewise. * emulparams/elf64ppc.sh: Likewise. * emulparams/elf_x86_64.sh: Likewise. * emulparams/elf64_aix.sh: Add "=" prefixes to LIB_PATH. * emulparams/elf64hppa.sh: Add "=" prefixes to LIB_PATH.
2003-01-06 17:14:01 +01:00
#ifdef TARGET_SYSTEM_ROOT_RELOCATABLE
ld_sysroot = make_relative_prefix (program_name, BINDIR,
TARGET_SYSTEM_ROOT);
* Makefile.am (eelf32iq10.c): Fix tab/whitespace mixup. * Makefile.am (ldmain.o): Add @TARGET_SYSTEM_ROOT_DEFINE@. (GENSCRIPTS): Add @use_sysroot@. * Makefile.in: Regenerated. * configure.host: Move setting of NATIVE_LIB_DIRS to... * configure.tgt: ... here. Use ${target} instead of ${host} for NATIVE_LIB_DIRS. * configure.in: Add --with-sysroot. * configure: Regenerated. * genscripts.sh: Accept use_sysroot option. Set new variables NATIVE and USE_LIBPATH. Prepend "=" to directory names if $use_sysroot. Don't search $tool_lib if $use_sysroot. * ldfile.c (ldfile_add_library_path): Handle leading '='. * ldmain.c (TARGET_SYSTEM_ROOT): Define if not defined. (ld_sysroot): New variable. (main): Initialize ld_sysroot. * ldmain.h (ld_sysroot): New extern. * emultempl/elf32.em: Use NATIVE and USE_LIBPATH instead of searching $EMULATION_LIBPATH. (gld${EMULATION_NAME}_add_sysroot): New function. (gld${EMULATION_NAME}_check_ld_so_conf): Use it. Honor ld_sysroot. (gld${EMULATION_NAME}_after_open): Likewise. Only search environment variables if $NATIVE. * ld.texinfo (Options): Mention "=" prefix in the description of -L. * NEWS: Mention --with-sysroot. * emulparams/elf32bmipn32-defs.sh: Set NATIVE and LIBPATH_SUFFIX instead of setting LIB_PATH. * emulparams/elf32ppc.sh: Likewise. * emulparams/elf64_s390.sh: Likewise. * emulparams/elf64_sparc.sh: Likewise. * emulparams/elf64ppc.sh: Likewise. * emulparams/elf_x86_64.sh: Likewise. * emulparams/elf64_aix.sh: Add "=" prefixes to LIB_PATH. * emulparams/elf64hppa.sh: Add "=" prefixes to LIB_PATH.
2003-01-06 17:14:01 +01:00
if (ld_sysroot)
{
struct stat s;
int res = stat (ld_sysroot, &s) == 0 && S_ISDIR (s.st_mode);
* Makefile.am (eelf32iq10.c): Fix tab/whitespace mixup. * Makefile.am (ldmain.o): Add @TARGET_SYSTEM_ROOT_DEFINE@. (GENSCRIPTS): Add @use_sysroot@. * Makefile.in: Regenerated. * configure.host: Move setting of NATIVE_LIB_DIRS to... * configure.tgt: ... here. Use ${target} instead of ${host} for NATIVE_LIB_DIRS. * configure.in: Add --with-sysroot. * configure: Regenerated. * genscripts.sh: Accept use_sysroot option. Set new variables NATIVE and USE_LIBPATH. Prepend "=" to directory names if $use_sysroot. Don't search $tool_lib if $use_sysroot. * ldfile.c (ldfile_add_library_path): Handle leading '='. * ldmain.c (TARGET_SYSTEM_ROOT): Define if not defined. (ld_sysroot): New variable. (main): Initialize ld_sysroot. * ldmain.h (ld_sysroot): New extern. * emultempl/elf32.em: Use NATIVE and USE_LIBPATH instead of searching $EMULATION_LIBPATH. (gld${EMULATION_NAME}_add_sysroot): New function. (gld${EMULATION_NAME}_check_ld_so_conf): Use it. Honor ld_sysroot. (gld${EMULATION_NAME}_after_open): Likewise. Only search environment variables if $NATIVE. * ld.texinfo (Options): Mention "=" prefix in the description of -L. * NEWS: Mention --with-sysroot. * emulparams/elf32bmipn32-defs.sh: Set NATIVE and LIBPATH_SUFFIX instead of setting LIB_PATH. * emulparams/elf32ppc.sh: Likewise. * emulparams/elf64_s390.sh: Likewise. * emulparams/elf64_sparc.sh: Likewise. * emulparams/elf64ppc.sh: Likewise. * emulparams/elf_x86_64.sh: Likewise. * emulparams/elf64_aix.sh: Add "=" prefixes to LIB_PATH. * emulparams/elf64hppa.sh: Add "=" prefixes to LIB_PATH.
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if (!res)
{
free (ld_sysroot);
ld_sysroot = NULL;
* Makefile.am (eelf32iq10.c): Fix tab/whitespace mixup. * Makefile.am (ldmain.o): Add @TARGET_SYSTEM_ROOT_DEFINE@. (GENSCRIPTS): Add @use_sysroot@. * Makefile.in: Regenerated. * configure.host: Move setting of NATIVE_LIB_DIRS to... * configure.tgt: ... here. Use ${target} instead of ${host} for NATIVE_LIB_DIRS. * configure.in: Add --with-sysroot. * configure: Regenerated. * genscripts.sh: Accept use_sysroot option. Set new variables NATIVE and USE_LIBPATH. Prepend "=" to directory names if $use_sysroot. Don't search $tool_lib if $use_sysroot. * ldfile.c (ldfile_add_library_path): Handle leading '='. * ldmain.c (TARGET_SYSTEM_ROOT): Define if not defined. (ld_sysroot): New variable. (main): Initialize ld_sysroot. * ldmain.h (ld_sysroot): New extern. * emultempl/elf32.em: Use NATIVE and USE_LIBPATH instead of searching $EMULATION_LIBPATH. (gld${EMULATION_NAME}_add_sysroot): New function. (gld${EMULATION_NAME}_check_ld_so_conf): Use it. Honor ld_sysroot. (gld${EMULATION_NAME}_after_open): Likewise. Only search environment variables if $NATIVE. * ld.texinfo (Options): Mention "=" prefix in the description of -L. * NEWS: Mention --with-sysroot. * emulparams/elf32bmipn32-defs.sh: Set NATIVE and LIBPATH_SUFFIX instead of setting LIB_PATH. * emulparams/elf32ppc.sh: Likewise. * emulparams/elf64_s390.sh: Likewise. * emulparams/elf64_sparc.sh: Likewise. * emulparams/elf64ppc.sh: Likewise. * emulparams/elf_x86_64.sh: Likewise. * emulparams/elf64_aix.sh: Add "=" prefixes to LIB_PATH. * emulparams/elf64hppa.sh: Add "=" prefixes to LIB_PATH.
2003-01-06 17:14:01 +01:00
}
}
if (! ld_sysroot)
{
ld_sysroot = make_relative_prefix (program_name, TOOLBINDIR,
TARGET_SYSTEM_ROOT);
if (ld_sysroot)
{
struct stat s;
int res = stat (ld_sysroot, &s) == 0 && S_ISDIR (s.st_mode);
if (!res)
{
free (ld_sysroot);
ld_sysroot = NULL;
}
}
}
if (! ld_sysroot)
* Makefile.am (eelf32iq10.c): Fix tab/whitespace mixup. * Makefile.am (ldmain.o): Add @TARGET_SYSTEM_ROOT_DEFINE@. (GENSCRIPTS): Add @use_sysroot@. * Makefile.in: Regenerated. * configure.host: Move setting of NATIVE_LIB_DIRS to... * configure.tgt: ... here. Use ${target} instead of ${host} for NATIVE_LIB_DIRS. * configure.in: Add --with-sysroot. * configure: Regenerated. * genscripts.sh: Accept use_sysroot option. Set new variables NATIVE and USE_LIBPATH. Prepend "=" to directory names if $use_sysroot. Don't search $tool_lib if $use_sysroot. * ldfile.c (ldfile_add_library_path): Handle leading '='. * ldmain.c (TARGET_SYSTEM_ROOT): Define if not defined. (ld_sysroot): New variable. (main): Initialize ld_sysroot. * ldmain.h (ld_sysroot): New extern. * emultempl/elf32.em: Use NATIVE and USE_LIBPATH instead of searching $EMULATION_LIBPATH. (gld${EMULATION_NAME}_add_sysroot): New function. (gld${EMULATION_NAME}_check_ld_so_conf): Use it. Honor ld_sysroot. (gld${EMULATION_NAME}_after_open): Likewise. Only search environment variables if $NATIVE. * ld.texinfo (Options): Mention "=" prefix in the description of -L. * NEWS: Mention --with-sysroot. * emulparams/elf32bmipn32-defs.sh: Set NATIVE and LIBPATH_SUFFIX instead of setting LIB_PATH. * emulparams/elf32ppc.sh: Likewise. * emulparams/elf64_s390.sh: Likewise. * emulparams/elf64_sparc.sh: Likewise. * emulparams/elf64ppc.sh: Likewise. * emulparams/elf_x86_64.sh: Likewise. * emulparams/elf64_aix.sh: Add "=" prefixes to LIB_PATH. * emulparams/elf64hppa.sh: Add "=" prefixes to LIB_PATH.
2003-01-06 17:14:01 +01:00
#endif
ld_sysroot = TARGET_SYSTEM_ROOT;
* Makefile.am (eelf32iq10.c): Fix tab/whitespace mixup. * Makefile.am (ldmain.o): Add @TARGET_SYSTEM_ROOT_DEFINE@. (GENSCRIPTS): Add @use_sysroot@. * Makefile.in: Regenerated. * configure.host: Move setting of NATIVE_LIB_DIRS to... * configure.tgt: ... here. Use ${target} instead of ${host} for NATIVE_LIB_DIRS. * configure.in: Add --with-sysroot. * configure: Regenerated. * genscripts.sh: Accept use_sysroot option. Set new variables NATIVE and USE_LIBPATH. Prepend "=" to directory names if $use_sysroot. Don't search $tool_lib if $use_sysroot. * ldfile.c (ldfile_add_library_path): Handle leading '='. * ldmain.c (TARGET_SYSTEM_ROOT): Define if not defined. (ld_sysroot): New variable. (main): Initialize ld_sysroot. * ldmain.h (ld_sysroot): New extern. * emultempl/elf32.em: Use NATIVE and USE_LIBPATH instead of searching $EMULATION_LIBPATH. (gld${EMULATION_NAME}_add_sysroot): New function. (gld${EMULATION_NAME}_check_ld_so_conf): Use it. Honor ld_sysroot. (gld${EMULATION_NAME}_after_open): Likewise. Only search environment variables if $NATIVE. * ld.texinfo (Options): Mention "=" prefix in the description of -L. * NEWS: Mention --with-sysroot. * emulparams/elf32bmipn32-defs.sh: Set NATIVE and LIBPATH_SUFFIX instead of setting LIB_PATH. * emulparams/elf32ppc.sh: Likewise. * emulparams/elf64_s390.sh: Likewise. * emulparams/elf64_sparc.sh: Likewise. * emulparams/elf64ppc.sh: Likewise. * emulparams/elf_x86_64.sh: Likewise. * emulparams/elf64_aix.sh: Add "=" prefixes to LIB_PATH. * emulparams/elf64hppa.sh: Add "=" prefixes to LIB_PATH.
2003-01-06 17:14:01 +01:00
if (ld_sysroot && *ld_sysroot)
ld_canon_sysroot = lrealpath (ld_sysroot);
if (ld_canon_sysroot)
ld_canon_sysroot_len = strlen (ld_canon_sysroot);
else
ld_canon_sysroot_len = -1;
1999-05-03 09:29:11 +02:00
/* Set the default BFD target based on the configured target. Doing
this permits the linker to be configured for a particular target,
and linked against a shared BFD library which was configured for
a different target. The macro TARGET is defined by Makefile. */
if (! bfd_set_default_target (TARGET))
{
einfo (_("%X%P: can't set BFD default target to `%s': %E\n"), TARGET);
xexit (1);
}
#if YYDEBUG
{
extern int yydebug;
yydebug = 1;
}
#endif
1999-05-03 09:29:11 +02:00
/* Initialize the data about options. */
trace_files = trace_file_tries = version_printed = FALSE;
whole_archive = FALSE;
config.build_constructors = TRUE;
config.dynamic_link = FALSE;
config.has_shared = FALSE;
config.split_by_reloc = (unsigned) -1;
config.split_by_file = (bfd_size_type) -1;
2004-05-21 17:38:04 +02:00
config.hash_table_size = 0;
command_line.force_common_definition = FALSE;
command_line.inhibit_common_definition = FALSE;
1999-05-03 09:29:11 +02:00
command_line.interpreter = NULL;
command_line.rpath = NULL;
command_line.warn_mismatch = TRUE;
command_line.check_section_addresses = TRUE;
command_line.accept_unknown_input_arch = FALSE;
command_line.reduce_memory_overheads = FALSE;
1999-05-03 09:29:11 +02:00
/* We initialize DEMANGLING based on the environment variable
COLLECT_NO_DEMANGLE. The gcc collect2 program will demangle the
output of the linker, unless COLLECT_NO_DEMANGLE is set in the
environment. Acting the same way here lets us provide the same
interface by default. */
demangling = getenv ("COLLECT_NO_DEMANGLE") == NULL;
2003-06-25 08:40:27 +02:00
link_info.relocatable = FALSE;
link_info.emitrelocations = FALSE;
link_info.task_link = FALSE;
link_info.shared = FALSE;
bfd/ * elflink.h (elf_link_add_object_symbols): Use !info->executable instead of info->shared where appropriate. (bfd_elfNN_size_dynamic_sections, elf_link_output_extsym): Likewise. * elflink.c (_bfd_elf_create_got_section): Likewise. (_bfd_elf_link_create_dynamic_sections): Likewise. (_bfd_elf_link_assign_sym_version): Likewise. * elf32-i386.c (elf_i386_size_dynamic_sections): Create .interp section and DT_DEBUG dynamic tag even for position independent executables. * elf32-ppc.c (ppc_elf_size_dynamic_sections): Likewise. * elf32-s390.c (elf_s390_size_dynamic_sections: Likewise. * elf64-ppc.c (ppc64_elf_size_dynamic_sections: Likewise. * elf64-s390.c (elf_s390_size_dynamic_sections: Likewise. * elf64-x86-64.c (elf64_x86_64_size_dynamic_sections: Likewise. * elfxx-ia64.c (elfNN_ia64_size_dynamic_sections: Likewise. * elf32-sparc.c (elf32_sparc_size_dynamic_sections: Likewise. * elf64-alpha.c (elf64_alpha_size_dynamic_sections: Likewise. * elf64-sparc.c (sparc64_elf_size_dynamic_sections: Likewise. include/ * bfdlink.h (struct bfd_link_info): Add pie and executable bits. ld/ * lexsup.c (OPTION_PIE): Define. (ld_options): Add -pie and --pic-executable options. (parse_args): Handle OPTION_PIE. * ldmain.c (main): Initialize link_info.pie and link_info.executable. * genscripts.sh: Generate PIE scripts. * ld.texinfo: Document -pie and --pic-executable options. * emultempl/elf32.em (gld${EMULATION_NAME}_after_open): (gld${EMULATION_NAME}_place_orphan): Likewise. (gld${EMULATION_NAME}_get_script): Include PIE scripts. * scripttempl/elf.sc: In PIE scripts set . the same way as in shared scripts. * emulparams/elf_i386.sh (GENERATE_PIE_SCRIPT): Set to yes. * emulparams/elf64_ia64.sh (GENERATE_PIE_SCRIPT): Likewise. * emulparams/elf32ppc.sh (GENERATE_PIE_SCRIPT): Likewise. * emulparams/elf64ppc.sh (GENERATE_PIE_SCRIPT): Likewise. * emulparams/elf_x86_64.sh (GENERATE_PIE_SCRIPT): Likewise. * emulparams/elf_s390.sh (GENERATE_PIE_SCRIPT): Likewise. * emulparams/elf32_sparc.sh (GENERATE_PIE_SCRIPT): Likewise. * emulparams/elf64_sparc.sh (GENERATE_PIE_SCRIPT): Likewise. * emulparams/elf64alpha.sh (GENERATE_PIE_SCRIPT): Likewise. * emulparams/elf64_s390.sh (GENERATE_PIE_SCRIPT): Likewise. * emulparams/elf_i386.sh (GENERATE_PIE_SCRIPT): Likewise.
2003-05-30 17:50:12 +02:00
link_info.pie = FALSE;
link_info.executable = FALSE;
link_info.symbolic = FALSE;
link_info.export_dynamic = FALSE;
link_info.static_link = FALSE;
link_info.traditional_format = FALSE;
link_info.optimize = FALSE;
2003-08-20 10:37:19 +02:00
link_info.unresolved_syms_in_objects = RM_NOT_YET_SET;
link_info.unresolved_syms_in_shared_libs = RM_NOT_YET_SET;
link_info.allow_multiple_definition = FALSE;
link_info.allow_undefined_version = TRUE;
link_info.keep_memory = TRUE;
link_info.notice_all = FALSE;
link_info.nocopyreloc = FALSE;
link_info.new_dtags = FALSE;
link_info.combreloc = TRUE;
link_info.eh_frame_hdr = FALSE;
bfd/ * elflink.c (elf_bfd_final_link): Don't output STT_SECTION symbol into .dynsym if elf_section_data (sec)->dynindx <= 0. Adjust counting of last_local. (_bfd_elf_link_renumber_dynsyms): Don't assign dynindx to sections other than SHT_PROGBITS/SHT_NOBITS and neither for .got/.got.plt/.plt created by the linker nor !SHF_ALLOC. * elf32-i386.c (elf_i386_finish_dynamic_sections): Point DT_PLTGOT to the start of the .got.plt section instead of the .got output section. Set sh_entsize for .got section in addition to .got.plt. (elf_i386_relocate_section): Don't assume _GLOBAL_OFFSET_TABLE_ is at sgot->output_section->vma. * elf64-x86-64.c (elf64_x86_64_finish_dynamic_sections): Point DT_PLTGOT to the start of the .got.plt section instead of the .got output section. (elf64_x86_64_relocate_section): Don't assume _GLOBAL_OFFSET_TABLE_ is at sgot->output_section->vma. Set sh_entsize for .got section in addition to .got.plt. * elf.c (_bfd_elf_print_private_bfd_data): Handle PT_GNU_RELRO. (bfd_section_from_phdr): Likewise. (map_sections_to_segments): Likewise. (assign_file_positions_for_segments): Likewise. (get_program_header_size): Likewise. * elflink.c (bfd_elf_size_dynamic_sections): Set elf_tdata (output_bfd)->relro from info->relro. * elf-bfd.h (struct elf_obj_tdata): Add relro field. include/ * bfdlink.h (struct bfd_link_info): Add relro, relro_start and relro_end fields. * elf/common.h (PT_GNU_EH_FRAME, PT_GNU_STACK): Add comments. (PT_GNU_RELRO): Define. binutils/ * readelf.c (get_segment_type): Handle PT_GNU_RELRO. ld/ * genscripts.sh: Generate -z combreloc -z now -z relro scripts for binaries, -shared and -pie. * emulparams/elf_i386.sh (SEPARATE_GOTPLT): Set. * emulparams/elf_x86_64.sh (SEPARATE_GOTPLT): Set. * emulparams/elf32ppc.sh (OTHER_READWRITE_SECTIONS): Rename to... (OTHER_RELRO_SECTIONS): ... this. * ldlex.l (DATA_SEGMENT_RELRO_END): Add. * emultempl/elf32.em (gld${EMULATION_NAME}_handle_option): Handle -z relro and -z norelro. (gld${EMULATION_NAME}_list_options): Add it to usage. (gld${EMULATION_NAME}_get_script): Return -z combreloc -z now -z relro scripts when appropriate. * scripttempl/elf.sc: Unset SEPARATE_GOTPLT if RELRO_NOW is set. Create separate .got.plt section if SEPARATE_GOTPLT. Move sections which are only written during relocation handling to the beginning of RW segment. If NO_SMALL_DATA, move .got before .data. Add DATA_SEGMENT_RELRO_END directive. Include OTHER_RELRO_SECTIONS. * ldgram.y (DATA_SEGMENT_RELRO_END): Add. * ldexp.c (exp_print_token): Handle DATA_SEGMENT_RELRO_END. (fold_unary): Likewise. (fold_binary): Handle -z relro. * ldexp.h (struct exp_data_seg): Add exp_dataseg_relro_seen and exp_dataseg_relro_adjust phases. Add relro_end field. * ldmain.c (main): Initialize link_info.relro to FALSE. * ldlang.c (lang_size_sections): Handle -z relro. ld/testsuite/ * ld-i386/tlspic.rd: Adjust for section reordering changes and removal of unneeded STT_SECTION symbols from .dynsym. * ld-i386/tlspic.dd: Likewise. * ld-i386/tlspic.sd: Likewise. * ld-i386/tlsbin.rd: Likewise. * ld-i386/tlsbinpic.s: Likewise. * ld-i386/tlsbin.dd: Likewise. * ld-i386/tlsbin.sd: Likewise. * ld-i386/tlsnopic.rd: Likewise. * ld-i386/tlsnopic1.s: Likewise. * ld-i386/combreloc.d: Likewise. * ld-i386/tlsnopic.dd: Likewise. * ld-i386/tlsnopic.sd: Likewise. * ld-x86-64/tlspic.rd: Likewise. * ld-x86-64/tlspic.dd: Likewise. * ld-x86-64/tlsbin.dd: Likewise. * ld-x86-64/tlspic.sd: Likewise. * ld-x86-64/tlsbin.sd: Likewise. * ld-x86-64/tlspic.td: Likewise. * ld-x86-64/tlsbin.td: Likewise. * ld-x86-64/tlsbin.rd: Likewise. * ld-s390/tlspic1.s: Likewise. * ld-s390/tlsbinpic.s: Likewise. * ld-s390/tlspic.rd: Likewise. * ld-s390/tlsbin.rd: Likewise. * ld-s390/tlspic.dd: Likewise. * ld-s390/tlsbin.dd: Likewise. * ld-s390/tlsbin.sd: Likewise. * ld-s390/tlsbin.td: Likewise. * ld-s390/tlspic.sd: Likewise. * ld-s390/tlspic.td: Likewise. * ld-s390/tlspic1_64.s: Likewise. * ld-s390/tlsbinpic_64.s: Likewise. * ld-s390/tlspic_64.rd: Likewise. * ld-s390/tlsbin_64.rd: Likewise. * ld-s390/tlspic_64.dd: Likewise. * ld-s390/tlsbin_64.dd: Likewise. * ld-s390/tlspic_64.sd: Likewise. * ld-s390/tlspic_64.td: Likewise. * ld-s390/tlsbin_64.td: Likewise. * ld-s390/tlsbin_64.sd: Likewise. * ld-powerpc/tlsexe32.r: Likewise. * ld-powerpc/tlsso32.r: Likewise. * ld-powerpc/tlsso32.d: Likewise. * ld-powerpc/tlsso32.g: Likewise. * ld-powerpc/tlsso32.t: Likewise. * ld-powerpc/tlsexe.r: Likewise. * ld-powerpc/tlsso.r: Likewise. * ld-powerpc/tlsso.g: Likewise. * ld-powerpc/tlsexetoc.r: Likewise. * ld-powerpc/tlstocso.r: Likewise. * ld-powerpc/tlstocso.g: Likewise. * ld-ia64/tlspic.rd: Likewise. * ld-ia64/tlspic.dd: Likewise. * ld-ia64/tlspic.sd: Likewise. * ld-ia64/tlspic.td: Likewise. * ld-ia64/tlsbin.rd: Likewise. * ld-ia64/tlsbin.sd: Likewise. * ld-ia64/tlsbin.td: Likewise. * ld-elfvsb/elfvsb.exp: XFAIL non-PIC load offset tests on s390x. * ld-shared/shared.exp: Likewise.
2004-05-11 19:08:38 +02:00
link_info.relro = FALSE;
link_info.strip_discarded = TRUE;
1999-05-03 09:29:11 +02:00
link_info.strip = strip_none;
bfd/ * libbfd-in.h (_bfd_merge_section): New. (_bfd_write_merged_section): New. (_bfd_merged_section_offset): New. * libbfd.h: Rebuilt. * linker.c (_bfd_generic_link_output_symbols): Handle discard_sec_merge. * aoutx.h (aout_link_write_symbols): Likewise. * pdp11.c (aout_link_write_symbols): Likewise. * elflink.h (elf_link_add_object_symbols): Call _bfd_merge_section. (elf_bfd_final_link): Adjust global symbols pointing into SEC_MERGE sections. (elf_link_sec_merge_syms): New. (elf_link_input_bfd): Call _bfd_merged_section_offset and _bfd_write_merged_section. Handle discard_sec_merge. * elf-bfd.h (struct elf_link_hash_table): Add merge_info field. (struct bfd_elf_section_data): Likewise. * elf.c (_bfd_elf_make_section_from_shdr): Set SEC_MERGE and SEC_STRINGS section flags and entsize from their ELF counterparts. (_bfd_elf_link_hash_table_init): Initialize merge_info. (elf_fake_sections): Set SHF_MERGE, SHF_STRINGS and sh_entsize from their BFD counterparts. * merge.c: New file. * Makefile.am: Add strtab.lo. * Makefile.in: Rebuilt. include/ * bfdlink.h (bfd_link_discard): Add discard_sec_merge. gas/ * config/obj-elf.c (obj_elf_change_section): Add entsize argument, handle SHF_MERGE and SHF_STRINGS. (obj_elf_parse_section_letters): Set SHF_MERGE and SHF_STRINGS. (obj_elf_section): Allow additional argument specifying entity size. * write.c (adjust_reloc_syms): Keep relocations against local symbols in SEC_MERGE sections. ld/ * ldmain.c (main): Default to discard_sec_merge. * lexsup.c (OPTION_DISCARD_NONE): Define. (ld_options): Add --discard-none. (parse_args): Handle OPTION_DISCARD_NONE. * ldlang.c (wild_doit): SEC_MERGE should be set in the output section only if SEC_MERGE and SEC_STRINGS flags and entsize of all its input sections match.
2001-04-13 02:34:36 +02:00
link_info.discard = discard_sec_merge;
link_info.common_skip_ar_aymbols = bfd_link_common_skip_none;
link_info.callbacks = &link_callbacks;
1999-05-03 09:29:11 +02:00
link_info.hash = NULL;
link_info.keep_hash = NULL;
link_info.notice_hash = NULL;
link_info.wrap_hash = NULL;
link_info.input_bfds = NULL;
link_info.create_object_symbols_section = NULL;
link_info.gc_sym_list = NULL;
link_info.base_file = NULL;
/* SVR4 linkers seem to set DT_INIT and DT_FINI based on magic _init
and _fini symbols. We are compatible. */
link_info.init_function = "_init";
link_info.fini_function = "_fini";
link_info.pei386_auto_import = -1;
link_info.pei386_runtime_pseudo_reloc = FALSE;
* elf-bfd.h (enum elf_reloc_type_class): New. (struct elf_backend_data): Add elf_backend_reloc_type_class. (_bfd_elf_reloc_type_class): New. * elfxx-target.h (elf_backend_reloc_type_class): Define. (elfNN_bed): Add elf_backend_reloc_type_class. * elf.c (_bfd_elf_reloc_type_class): New. * elf32-i386.c (elf_i386_check_relocs): Set DF_TEXTREL if the reloc is against read-only section. (elf_i386_size_dynamic_sections): Use DF_TEXTREL flag instead of looking up section names for DT_TEXTREL. (elf_i386_reloc_type_class): New. (elf_backend_reloc_type_class): Define. * elf32-sparc.c (elf32_sparc_check_relocs): Set DF_TEXTREL if the reloc is against read-only section. (elf32_sparc_size_dynamic_sections): Use DF_TEXTREL flag instead of looking up section names for DT_TEXTREL. (elf32_sparc_reloc_type_class): New. (elf_backend_reloc_type_class): Define. * elf64-sparc.c (sparc64_elf_check_relocs): Set DF_TEXTREL if the reloc is against read-only section. (sparc64_elf_size_dynamic_sections): Use DF_TEXTREL flag instead of looking up section names for DT_TEXTREL. (sparc64_elf_reloc_type_class): New. (elf_backend_reloc_type_class): Define. * elfxx-ia64.c (struct elfNN_ia64_link_hash_table): Add reltext field. (elfNN_ia64_hash_table_create): Clear ia64_info. (get_reloc_section): Set DF_TEXTREL if the reloc is against read-only section. (elfNN_ia64_size_dynamic_sections): Use ia64_info->reltext flag instead of looking up section names for DT_TEXTREL. (elfNN_ia64_reloc_type_class): New. (elf_backend_reloc_type_class): Define. * elflink.h (size_dynamic_sections): Add spare DT_NULL tags. (struct elf_link_sort_rela): New. (elf_link_sort_cmp1, elf_link_sort_cmp2, elf_link_sort_relocs): New. (elf_bfd_final_link): Call elf_link_sort_relocs. Convert one spare DT_NULL into DT_RELCOUNT resp. DT_RELACOUNT if necessary. * bfdlink.h (struct bfd_link_info): Add combreloc and spare_dynamic_tags fields. * emultempl/elf32.em (place_orphan): Place orphan .rel* sections into .rel.dyn resp. .rela.dyn if combreloc. (get_script): If .x linker script is equal to .xn, only put it once into the binary. Add .xc and .xsc scripts. (parse_args): Handle -z combreloc and -z nocombreloc. * scripttempl/elf.sc (.rela.sbss): Fix a typo. For .xc and .xsc scripts put all .rel* or .rela* input sections but .rel*.plt and PLT-like sections into .rel.dyn resp. .rela.dyn. * genscripts.sh (GENERATE_COMBRELOC_SCRIPT): Set if SCRIPT_NAME is elf. Strip trailing whitespace from script. Generate .xc and .xsc scripts if requested. * ldmain.c (main): Initialize link_info.combreloc and link_info.spare_dynamic_tags. * lexsup.c (OPTION_SPARE_DYNAMIC_TAGS): Define. (ld_options): Add --spare-dynamic-tags option. (parse_args): Likewise. * ld.texinfo: Document -z combreloc and -z nocombreloc. * ldint.texinfo: Document .xc and .xsc linker scripts. * NEWS: Add notes about -z combreloc and SHF_MERGE.
2001-08-23 17:14:18 +02:00
link_info.spare_dynamic_tags = 5;
2003-06-28 07:28:54 +02:00
link_info.flags = 0;
link_info.flags_1 = 0;
link_info.need_relax_finalize = FALSE;
1999-05-03 09:29:11 +02:00
ldfile_add_arch ("");
config.make_executable = TRUE;
force_make_executable = FALSE;
config.magic_demand_paged = TRUE;
config.text_read_only = TRUE;
1999-05-03 09:29:11 +02:00
emulation = get_emulation (argc, argv);
ldemul_choose_mode (emulation);
default_target = ldemul_choose_target (argc, argv);
1999-05-03 09:29:11 +02:00
lang_init ();
ldemul_before_parse ();
lang_has_input_file = FALSE;
1999-05-03 09:29:11 +02:00
parse_args (argc, argv);
2004-05-21 17:38:04 +02:00
if (config.hash_table_size != 0)
bfd_hash_set_default_size (config.hash_table_size);
1999-05-03 09:29:11 +02:00
ldemul_set_symbols ();
2003-06-25 08:40:27 +02:00
if (link_info.relocatable)
1999-05-03 09:29:11 +02:00
{
if (command_line.gc_sections)
einfo ("%P%F: --gc-sections and -r may not be used together\n");
else if (command_line.relax)
einfo (_("%P%F: --relax and -r may not be used together\n"));
if (link_info.shared)
einfo (_("%P%F: -r and -shared may not be used together\n"));
}
if (! link_info.shared)
{
if (command_line.filter_shlib)
einfo (_("%P%F: -F may not be used without -shared\n"));
if (command_line.auxiliary_filters)
einfo (_("%P%F: -f may not be used without -shared\n"));
}
bfd/ * elflink.h (elf_link_add_object_symbols): Use !info->executable instead of info->shared where appropriate. (bfd_elfNN_size_dynamic_sections, elf_link_output_extsym): Likewise. * elflink.c (_bfd_elf_create_got_section): Likewise. (_bfd_elf_link_create_dynamic_sections): Likewise. (_bfd_elf_link_assign_sym_version): Likewise. * elf32-i386.c (elf_i386_size_dynamic_sections): Create .interp section and DT_DEBUG dynamic tag even for position independent executables. * elf32-ppc.c (ppc_elf_size_dynamic_sections): Likewise. * elf32-s390.c (elf_s390_size_dynamic_sections: Likewise. * elf64-ppc.c (ppc64_elf_size_dynamic_sections: Likewise. * elf64-s390.c (elf_s390_size_dynamic_sections: Likewise. * elf64-x86-64.c (elf64_x86_64_size_dynamic_sections: Likewise. * elfxx-ia64.c (elfNN_ia64_size_dynamic_sections: Likewise. * elf32-sparc.c (elf32_sparc_size_dynamic_sections: Likewise. * elf64-alpha.c (elf64_alpha_size_dynamic_sections: Likewise. * elf64-sparc.c (sparc64_elf_size_dynamic_sections: Likewise. include/ * bfdlink.h (struct bfd_link_info): Add pie and executable bits. ld/ * lexsup.c (OPTION_PIE): Define. (ld_options): Add -pie and --pic-executable options. (parse_args): Handle OPTION_PIE. * ldmain.c (main): Initialize link_info.pie and link_info.executable. * genscripts.sh: Generate PIE scripts. * ld.texinfo: Document -pie and --pic-executable options. * emultempl/elf32.em (gld${EMULATION_NAME}_after_open): (gld${EMULATION_NAME}_place_orphan): Likewise. (gld${EMULATION_NAME}_get_script): Include PIE scripts. * scripttempl/elf.sc: In PIE scripts set . the same way as in shared scripts. * emulparams/elf_i386.sh (GENERATE_PIE_SCRIPT): Set to yes. * emulparams/elf64_ia64.sh (GENERATE_PIE_SCRIPT): Likewise. * emulparams/elf32ppc.sh (GENERATE_PIE_SCRIPT): Likewise. * emulparams/elf64ppc.sh (GENERATE_PIE_SCRIPT): Likewise. * emulparams/elf_x86_64.sh (GENERATE_PIE_SCRIPT): Likewise. * emulparams/elf_s390.sh (GENERATE_PIE_SCRIPT): Likewise. * emulparams/elf32_sparc.sh (GENERATE_PIE_SCRIPT): Likewise. * emulparams/elf64_sparc.sh (GENERATE_PIE_SCRIPT): Likewise. * emulparams/elf64alpha.sh (GENERATE_PIE_SCRIPT): Likewise. * emulparams/elf64_s390.sh (GENERATE_PIE_SCRIPT): Likewise. * emulparams/elf_i386.sh (GENERATE_PIE_SCRIPT): Likewise.
2003-05-30 17:50:12 +02:00
if (! link_info.shared || link_info.pie)
link_info.executable = TRUE;
1999-05-03 09:29:11 +02:00
/* Treat ld -r -s as ld -r -S -x (i.e., strip all local symbols). I
don't see how else this can be handled, since in this case we
must preserve all externally visible symbols. */
2003-06-25 08:40:27 +02:00
if (link_info.relocatable && link_info.strip == strip_all)
1999-05-03 09:29:11 +02:00
{
link_info.strip = strip_debugger;
bfd/ * libbfd-in.h (_bfd_merge_section): New. (_bfd_write_merged_section): New. (_bfd_merged_section_offset): New. * libbfd.h: Rebuilt. * linker.c (_bfd_generic_link_output_symbols): Handle discard_sec_merge. * aoutx.h (aout_link_write_symbols): Likewise. * pdp11.c (aout_link_write_symbols): Likewise. * elflink.h (elf_link_add_object_symbols): Call _bfd_merge_section. (elf_bfd_final_link): Adjust global symbols pointing into SEC_MERGE sections. (elf_link_sec_merge_syms): New. (elf_link_input_bfd): Call _bfd_merged_section_offset and _bfd_write_merged_section. Handle discard_sec_merge. * elf-bfd.h (struct elf_link_hash_table): Add merge_info field. (struct bfd_elf_section_data): Likewise. * elf.c (_bfd_elf_make_section_from_shdr): Set SEC_MERGE and SEC_STRINGS section flags and entsize from their ELF counterparts. (_bfd_elf_link_hash_table_init): Initialize merge_info. (elf_fake_sections): Set SHF_MERGE, SHF_STRINGS and sh_entsize from their BFD counterparts. * merge.c: New file. * Makefile.am: Add strtab.lo. * Makefile.in: Rebuilt. include/ * bfdlink.h (bfd_link_discard): Add discard_sec_merge. gas/ * config/obj-elf.c (obj_elf_change_section): Add entsize argument, handle SHF_MERGE and SHF_STRINGS. (obj_elf_parse_section_letters): Set SHF_MERGE and SHF_STRINGS. (obj_elf_section): Allow additional argument specifying entity size. * write.c (adjust_reloc_syms): Keep relocations against local symbols in SEC_MERGE sections. ld/ * ldmain.c (main): Default to discard_sec_merge. * lexsup.c (OPTION_DISCARD_NONE): Define. (ld_options): Add --discard-none. (parse_args): Handle OPTION_DISCARD_NONE. * ldlang.c (wild_doit): SEC_MERGE should be set in the output section only if SEC_MERGE and SEC_STRINGS flags and entsize of all its input sections match.
2001-04-13 02:34:36 +02:00
if (link_info.discard == discard_sec_merge)
1999-05-03 09:29:11 +02:00
link_info.discard = discard_all;
}
/* This essentially adds another -L directory so this must be done after
the -L's in argv have been processed. */
set_scripts_dir ();
/* If we have not already opened and parsed a linker script
read the emulation's appropriate default script. */
2001-08-15 19:10:18 +02:00
if (saved_script_handle == NULL)
1999-05-03 09:29:11 +02:00
{
int isfile;
char *s = ldemul_get_script (&isfile);
1999-05-03 09:29:11 +02:00
if (isfile)
ldfile_open_command_file (s);
else
{
1999-05-03 09:29:11 +02:00
lex_string = s;
lex_redirect (s);
}
parser_input = input_script;
yyparse ();
lex_string = NULL;
}
if (trace_file_tries)
{
if (saved_script_handle)
info_msg (_("using external linker script:"));
else
info_msg (_("using internal linker script:"));
info_msg ("\n==================================================\n");
if (saved_script_handle)
{
static const int ld_bufsz = 8193;
size_t n;
char *buf = xmalloc (ld_bufsz);
rewind (saved_script_handle);
while ((n = fread (buf, 1, ld_bufsz - 1, saved_script_handle)) > 0)
{
buf[n] = 0;
info_msg (buf);
}
rewind (saved_script_handle);
free (buf);
}
else
{
int isfile;
info_msg (ldemul_get_script (&isfile));
}
info_msg ("\n==================================================\n");
}
1999-05-03 09:29:11 +02:00
lang_final ();
if (!lang_has_input_file)
1999-05-03 09:29:11 +02:00
{
if (version_printed)
xexit (0);
einfo (_("%P%F: no input files\n"));
}
if (trace_files)
info_msg (_("%P: mode %s\n"), emulation);
1999-05-03 09:29:11 +02:00
ldemul_after_parse ();
if (config.map_filename)
{
if (strcmp (config.map_filename, "-") == 0)
{
config.map_file = stdout;
}
else
{
config.map_file = fopen (config.map_filename, FOPEN_WT);
if (config.map_file == (FILE *) NULL)
{
bfd_set_error (bfd_error_system_call);
einfo (_("%P%F: cannot open map file %s: %E\n"),
config.map_filename);
}
}
}
lang_process ();
/* Print error messages for any missing symbols, for any warning
symbols, and possibly multiple definitions. */
2003-06-25 08:40:27 +02:00
if (link_info.relocatable)
1999-05-03 09:29:11 +02:00
output_bfd->flags &= ~EXEC_P;
else
output_bfd->flags |= EXEC_P;
ldwrite ();
if (config.map_file != NULL)
lang_map ();
if (command_line.cref)
output_cref (config.map_file != NULL ? config.map_file : stdout);
if (nocrossref_list != NULL)
check_nocrossrefs ();
2003-06-25 08:40:27 +02:00
/* Even if we're producing relocatable output, some non-fatal errors should
1999-05-03 09:29:11 +02:00
be reported in the exit status. (What non-fatal errors, if any, do we
2003-06-25 08:40:27 +02:00
want to ignore for relocatable output?) */
if (!config.make_executable && !force_make_executable)
1999-05-03 09:29:11 +02:00
{
if (trace_files)
einfo (_("%P: link errors found, deleting executable `%s'\n"),
output_filename);
1999-05-03 09:29:11 +02:00
/* The file will be removed by remove_output. */
xexit (1);
}
else
{
if (! bfd_close (output_bfd))
einfo (_("%F%B: final close failed: %E\n"), output_bfd);
/* If the --force-exe-suffix is enabled, and we're making an
executable file and it doesn't end in .exe, copy it to one
which does. */
2003-06-25 08:40:27 +02:00
if (! link_info.relocatable && command_line.force_exe_suffix)
1999-05-03 09:29:11 +02:00
{
int len = strlen (output_filename);
if (len < 4
1999-05-03 09:29:11 +02:00
|| (strcasecmp (output_filename + len - 4, ".exe") != 0
&& strcasecmp (output_filename + len - 4, ".dll") != 0))
{
FILE *src;
FILE *dst;
const int bsize = 4096;
char *buf = xmalloc (bsize);
int l;
char *dst_name = xmalloc (len + 5);
1999-05-03 09:29:11 +02:00
strcpy (dst_name, output_filename);
strcat (dst_name, ".exe");
src = fopen (output_filename, FOPEN_RB);
dst = fopen (dst_name, FOPEN_WB);
if (!src)
2003-06-28 07:28:54 +02:00
einfo (_("%X%P: unable to open for source of copy `%s'\n"),
output_filename);
1999-05-03 09:29:11 +02:00
if (!dst)
2003-06-28 07:28:54 +02:00
einfo (_("%X%P: unable to open for destination of copy `%s'\n"),
dst_name);
1999-05-03 09:29:11 +02:00
while ((l = fread (buf, 1, bsize, src)) > 0)
{
int done = fwrite (buf, 1, l, dst);
1999-05-03 09:29:11 +02:00
if (done != l)
einfo (_("%P: Error writing file `%s'\n"), dst_name);
1999-05-03 09:29:11 +02:00
}
1999-05-03 09:29:11 +02:00
fclose (src);
if (fclose (dst) == EOF)
einfo (_("%P: Error closing file `%s'\n"), dst_name);
1999-05-03 09:29:11 +02:00
free (dst_name);
free (buf);
}
}
}
END_PROGRESS (program_name);
if (config.stats)
{
#ifdef HAVE_SBRK
2003-06-28 07:28:54 +02:00
char *lim = sbrk (0);
1999-05-03 09:29:11 +02:00
#endif
long run_time = get_run_time () - start_time;
fprintf (stderr, _("%s: total time in link: %ld.%06ld\n"),
program_name, run_time / 1000000, run_time % 1000000);
#ifdef HAVE_SBRK
fprintf (stderr, _("%s: data size %ld\n"), program_name,
(long) (lim - (char *) &environ));
#endif
}
/* Prevent remove_output from doing anything, after a successful link. */
output_filename = NULL;
xexit (0);
return 0;
}
/* We need to find any explicitly given emulation in order to initialize the
state that's needed by the lex&yacc argument parser (parse_args). */
static char *
2003-06-28 07:28:54 +02:00
get_emulation (int argc, char **argv)
1999-05-03 09:29:11 +02:00
{
char *emulation;
int i;
emulation = getenv (EMULATION_ENVIRON);
if (emulation == NULL)
emulation = DEFAULT_EMULATION;
for (i = 1; i < argc; i++)
{
if (!strncmp (argv[i], "-m", 2))
{
if (argv[i][2] == '\0')
{
/* -m EMUL */
if (i < argc - 1)
{
emulation = argv[i + 1];
i++;
}
else
einfo (_("%P%F: missing argument to -m\n"));
1999-05-03 09:29:11 +02:00
}
else if (strcmp (argv[i], "-mips1") == 0
|| strcmp (argv[i], "-mips2") == 0
|| strcmp (argv[i], "-mips3") == 0
2001-05-23 19:26:40 +02:00
|| strcmp (argv[i], "-mips4") == 0
|| strcmp (argv[i], "-mips5") == 0
|| strcmp (argv[i], "-mips32") == 0
|| strcmp (argv[i], "-mips32r2") == 0
[ bfd/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * archures.c (bfd_mach_mipsisa64r2): New define. * bfd-in2.h: Regenerate. * aoutx.h (NAME(aout,machine_type)): Handle bfd_mach_mipsisa64r2. * cpu-mips.c (I_mipsisa64r2): New enum value. (arch_info_struct): Add entry for I_mipsisa64r2. * elfxx-mips.c (_bfd_elf_mips_mach) (_bfd_mips_elf_print_private_bfd_data): Handle E_MIPS_ARCH_64R2. (mips_set_isa_flags): Add bfd_mach_mipsisa64r2 case. (mips_mach_extensions): Add entry for bfd_mach_mipsisa64r2. [ binutils/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * readelf.c (get_machine_flags): Handle E_MIPS_ARCH_64R2. [ gas/Changelog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * configure.in (mipsisa64r2, mipsisa64r2el, mipsisa64r2*): New CPUs. * configure: Regenerate. * config/tc-mips.c (imm2_expr): New variable. (md_assemble, mips16_ip): Initialize imm2_expr. (ISA_HAS_64BIT_REGS, ISA_HAS_DROR, ISA_HAS_ROR): Add ISA_MIPS64R2. (macro_build): Handle +A, +B, +C, +E, +F, +G, and +H format operands. (macro): Handle M_DEXT and M_DINS. (validate_mips_insn): Handle +E, +F, +G, +H, and +I format operands. (mips_ip): Likewise. (OPTION_MIPS64R2): New define. (md_longopts): New entry for -mips64r2 (OPTION_MIPS64R2). OPTION_ASE_BASE): Increase to compensate for OPTION_MIPS64R2. (md_parse_option): Handle OPTION_MIPS64R2. (s_mipsset): Handle setting "mips64r2" ISA. (mips_cpu_info_table): Add mips64r2. (md_show_usage): Document -mips64r2 option. * doc/as.texinfo: Docuemnt -mips64r2 option. * doc/c-mips.texi: Likewise. [ gas/testsuite/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * gas/mips/cp0-names-mips64r2.d: New file. * gas/mips/cp0sel-names-mips64r2.d: New file. * gas/mips/elf_arch_mips64r2.d: New file. * gas/mips/hwr-names-mips64r2.d: New file. * gas/mips/mips32r2-ill-fp64.l: New file. * gas/mips/mips32r2-ill-fp64.s: New file. * gas/mips/mips64r2-ill.l: New file. * gas/mips/mips64r2-ill.s: New file. * gas/mips/mips64r2.d: New file. * gas/mips/mips64r2.s: New file. * gas/mips/mips.exp: Define "mips64r2" arch, and run new tests. [ include/elf/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * mips.h (E_MIPS_ARCH_64R2): New define. [ include/opcode/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * mips.h: Document +E, +F, +G, +H, and +I operand types. Update documentation of I, +B and +C operand types. (INSN_ISA64R2, ISA_MIPS64R2, CPU_MIPS64R2): New defines. (M_DEXT, M_DINS): New enum values. [ ld/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * ldmain.c (get_emulation): Ignore "-mips64r2". [ ld/testsuite/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * ld-mips-elf/mips-elf-flags.exp: Add tests for combinations with MIPS64r2. [ opcodes/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * mips-dis.c (mips_arch_choices): Add entry for "mips64r2" (print_insn_args): Add handing for +E, +F, +G, and +H. * mips-opc.c (I65): New define for MIPS64r2. (mips_builtin_opcodes): Add "dext", "dextm", "dextu", "dins", "dinsm", "dinsu", "drotl", "drotr", "drotr32", "drotrv", "dsbh", and "dshd" for MIPS64r2. Adjust "dror", "dror32", and "drorv" to be supported on MIPS64r2.
2003-09-30 18:17:15 +02:00
|| strcmp (argv[i], "-mips64") == 0
|| strcmp (argv[i], "-mips64r2") == 0)
1999-05-03 09:29:11 +02:00
{
/* FIXME: The arguments -mips1, -mips2, -mips3, etc. are
1999-05-03 09:29:11 +02:00
passed to the linker by some MIPS compilers. They
generally tell the linker to use a slightly different
library path. Perhaps someday these should be
implemented as emulations; until then, we just ignore
the arguments and hope that nobody ever creates
emulations named ips1, ips2 or ips3. */
}
else if (strcmp (argv[i], "-m486") == 0)
{
/* FIXME: The argument -m486 is passed to the linker on
some Linux systems. Hope that nobody creates an
emulation named 486. */
}
else
{
/* -mEMUL */
emulation = &argv[i][2];
}
}
}
return emulation;
}
/* If directory DIR contains an "ldscripts" subdirectory,
add DIR to the library search path and return TRUE,
else return FALSE. */
1999-05-03 09:29:11 +02:00
static bfd_boolean
2003-06-28 07:28:54 +02:00
check_for_scripts_dir (char *dir)
1999-05-03 09:29:11 +02:00
{
size_t dirlen;
char *buf;
struct stat s;
bfd_boolean res;
1999-05-03 09:29:11 +02:00
dirlen = strlen (dir);
/* sizeof counts the terminating NUL. */
2003-06-28 07:28:54 +02:00
buf = xmalloc (dirlen + sizeof ("/ldscripts"));
1999-05-03 09:29:11 +02:00
sprintf (buf, "%s/ldscripts", dir);
res = stat (buf, &s) == 0 && S_ISDIR (s.st_mode);
free (buf);
if (res)
ldfile_add_library_path (dir, FALSE);
1999-05-03 09:29:11 +02:00
return res;
}
/* Set the default directory for finding script files.
Libraries will be searched for here too, but that's ok.
We look for the "ldscripts" directory in:
SCRIPTDIR (passed from Makefile)
(adjusted according to the current location of the binary)
1999-05-03 09:29:11 +02:00
SCRIPTDIR (passed from Makefile)
the dir where this program is (for using it from the build tree)
the dir where this program is/../lib
(for installing the tool suite elsewhere). */
1999-05-03 09:29:11 +02:00
static void
2003-06-28 07:28:54 +02:00
set_scripts_dir (void)
1999-05-03 09:29:11 +02:00
{
char *end, *dir;
size_t dirlen;
2003-03-31 20:13:25 +02:00
bfd_boolean found;
1999-05-03 09:29:11 +02:00
dir = make_relative_prefix (program_name, BINDIR, SCRIPTDIR);
if (dir)
2003-03-31 20:13:25 +02:00
{
found = check_for_scripts_dir (dir);
free (dir);
if (found)
return;
}
dir = make_relative_prefix (program_name, TOOLBINDIR, SCRIPTDIR);
if (dir)
2003-03-31 20:13:25 +02:00
{
found = check_for_scripts_dir (dir);
free (dir);
if (found)
return;
}
1999-05-03 09:29:11 +02:00
if (check_for_scripts_dir (SCRIPTDIR))
/* We've been installed normally. */
return;
1999-05-03 09:29:11 +02:00
/* Look for "ldscripts" in the dir where our binary is. */
end = strrchr (program_name, '/');
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
{
/* We could have \foo\bar, or /foo\bar. */
char *bslash = strrchr (program_name, '\\');
if (end == NULL || (bslash != NULL && bslash > end))
end = bslash;
}
#endif
1999-05-03 09:29:11 +02:00
if (end == NULL)
/* Don't look for ldscripts in the current directory. There is
too much potential for confusion. */
return;
1999-05-03 09:29:11 +02:00
dirlen = end - program_name;
/* Make a copy of program_name in dir.
Leave room for later "/../lib". */
2003-06-28 07:28:54 +02:00
dir = xmalloc (dirlen + 8);
1999-05-03 09:29:11 +02:00
strncpy (dir, program_name, dirlen);
dir[dirlen] = '\0';
if (check_for_scripts_dir (dir))
2003-03-31 20:13:25 +02:00
{
free (dir);
return;
}
1999-05-03 09:29:11 +02:00
/* Look for "ldscripts" in <the dir where our binary is>/../lib. */
strcpy (dir + dirlen, "/../lib");
2003-03-31 20:13:25 +02:00
check_for_scripts_dir (dir);
free (dir);
1999-05-03 09:29:11 +02:00
}
void
2003-06-28 07:28:54 +02:00
add_ysym (const char *name)
1999-05-03 09:29:11 +02:00
{
2003-06-28 07:28:54 +02:00
if (link_info.notice_hash == NULL)
1999-05-03 09:29:11 +02:00
{
2003-06-28 07:28:54 +02:00
link_info.notice_hash = xmalloc (sizeof (struct bfd_hash_table));
1999-05-03 09:29:11 +02:00
if (! bfd_hash_table_init_n (link_info.notice_hash,
bfd_hash_newfunc,
61))
einfo (_("%P%F: bfd_hash_table_init failed: %E\n"));
}
1999-05-03 09:29:11 +02:00
2003-06-28 07:28:54 +02:00
if (bfd_hash_lookup (link_info.notice_hash, name, TRUE, TRUE) == NULL)
1999-05-03 09:29:11 +02:00
einfo (_("%P%F: bfd_hash_lookup failed: %E\n"));
}
/* Record a symbol to be wrapped, from the --wrap option. */
void
2003-06-28 07:28:54 +02:00
add_wrap (const char *name)
1999-05-03 09:29:11 +02:00
{
if (link_info.wrap_hash == NULL)
{
2003-06-28 07:28:54 +02:00
link_info.wrap_hash = xmalloc (sizeof (struct bfd_hash_table));
1999-05-03 09:29:11 +02:00
if (! bfd_hash_table_init_n (link_info.wrap_hash,
bfd_hash_newfunc,
61))
einfo (_("%P%F: bfd_hash_table_init failed: %E\n"));
}
if (bfd_hash_lookup (link_info.wrap_hash, name, TRUE, TRUE) == NULL)
1999-05-03 09:29:11 +02:00
einfo (_("%P%F: bfd_hash_lookup failed: %E\n"));
}
/* Handle the -retain-symbols-file option. */
void
2003-06-28 07:28:54 +02:00
add_keepsyms_file (const char *filename)
1999-05-03 09:29:11 +02:00
{
FILE *file;
char *buf;
size_t bufsize;
int c;
if (link_info.strip == strip_some)
einfo (_("%X%P: error: duplicate retain-symbols-file\n"));
file = fopen (filename, "r");
2003-06-28 07:28:54 +02:00
if (file == NULL)
1999-05-03 09:29:11 +02:00
{
bfd_set_error (bfd_error_system_call);
einfo ("%X%P: %s: %E\n", filename);
return;
}
2003-06-28 07:28:54 +02:00
link_info.keep_hash = xmalloc (sizeof (struct bfd_hash_table));
1999-05-03 09:29:11 +02:00
if (! bfd_hash_table_init (link_info.keep_hash, bfd_hash_newfunc))
einfo (_("%P%F: bfd_hash_table_init failed: %E\n"));
bufsize = 100;
2003-06-28 07:28:54 +02:00
buf = xmalloc (bufsize);
1999-05-03 09:29:11 +02:00
c = getc (file);
while (c != EOF)
{
while (ISSPACE (c))
1999-05-03 09:29:11 +02:00
c = getc (file);
if (c != EOF)
{
size_t len = 0;
while (! ISSPACE (c) && c != EOF)
1999-05-03 09:29:11 +02:00
{
buf[len] = c;
++len;
if (len >= bufsize)
{
bufsize *= 2;
buf = xrealloc (buf, bufsize);
}
c = getc (file);
}
buf[len] = '\0';
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if (bfd_hash_lookup (link_info.keep_hash, buf, TRUE, TRUE) == NULL)
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einfo (_("%P%F: bfd_hash_lookup for insertion failed: %E\n"));
}
}
if (link_info.strip != strip_none)
einfo (_("%P: `-retain-symbols-file' overrides `-s' and `-S'\n"));
2003-03-31 20:13:25 +02:00
free (buf);
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link_info.strip = strip_some;
}
/* Callbacks from the BFD linker routines. */
/* This is called when BFD has decided to include an archive member in
a link. */
static bfd_boolean
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add_archive_element (struct bfd_link_info *info ATTRIBUTE_UNUSED,
bfd *abfd,
const char *name)
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{
lang_input_statement_type *input;
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input = xmalloc (sizeof (lang_input_statement_type));
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input->filename = abfd->filename;
input->local_sym_name = abfd->filename;
input->the_bfd = abfd;
input->asymbols = NULL;
input->next = NULL;
input->just_syms_flag = FALSE;
input->loaded = FALSE;
input->search_dirs_flag = FALSE;
1999-05-03 09:29:11 +02:00
/* FIXME: The following fields are not set: header.next,
header.type, closed, passive_position, symbol_count,
next_real_file, is_archive, target, real. This bit of code is
from the old decode_library_subfile function. I don't know
whether any of those fields matters. */
ldlang_add_file (input);
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if (config.map_file != NULL)
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{
static bfd_boolean header_printed;
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struct bfd_link_hash_entry *h;
bfd *from;
int len;
h = bfd_link_hash_lookup (link_info.hash, name, FALSE, FALSE, TRUE);
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if (h == NULL)
from = NULL;
else
{
switch (h->type)
{
default:
from = NULL;
break;
case bfd_link_hash_defined:
case bfd_link_hash_defweak:
from = h->u.def.section->owner;
break;
case bfd_link_hash_undefined:
case bfd_link_hash_undefweak:
from = h->u.undef.abfd;
break;
case bfd_link_hash_common:
from = h->u.c.p->section->owner;
break;
}
}
if (! header_printed)
{
char buf[100];
sprintf (buf, _("Archive member included because of file (symbol)\n\n"));
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minfo ("%s", buf);
header_printed = TRUE;
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}
if (bfd_my_archive (abfd) == NULL)
{
minfo ("%s", bfd_get_filename (abfd));
len = strlen (bfd_get_filename (abfd));
}
else
{
minfo ("%s(%s)", bfd_get_filename (bfd_my_archive (abfd)),
bfd_get_filename (abfd));
len = (strlen (bfd_get_filename (bfd_my_archive (abfd)))
+ strlen (bfd_get_filename (abfd))
+ 2);
}
if (len >= 29)
{
print_nl ();
len = 0;
}
while (len < 30)
{
print_space ();
++len;
}
if (from != NULL)
minfo ("%B ", from);
if (h != NULL)
minfo ("(%T)\n", h->root.string);
else
minfo ("(%s)\n", name);
}
if (trace_files || trace_file_tries)
info_msg ("%I\n", input);
return TRUE;
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}
/* This is called when BFD has discovered a symbol which is defined
multiple times. */
static bfd_boolean
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multiple_definition (struct bfd_link_info *info ATTRIBUTE_UNUSED,
const char *name,
bfd *obfd,
asection *osec,
bfd_vma oval,
bfd *nbfd,
asection *nsec,
bfd_vma nval)
1999-05-03 09:29:11 +02:00
{
/* If either section has the output_section field set to
bfd_abs_section_ptr, it means that the section is being
discarded, and this is not really a multiple definition at all.
FIXME: It would be cleaner to somehow ignore symbols defined in
sections which are being discarded. */
if ((osec->output_section != NULL
&& ! bfd_is_abs_section (osec)
&& bfd_is_abs_section (osec->output_section))
|| (nsec->output_section != NULL
&& ! bfd_is_abs_section (nsec)
&& bfd_is_abs_section (nsec->output_section)))
return TRUE;
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einfo (_("%X%C: multiple definition of `%T'\n"),
nbfd, nsec, nval, name);
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if (obfd != NULL)
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einfo (_("%D: first defined here\n"), obfd, osec, oval);
if (command_line.relax)
{
einfo (_("%P: Disabling relaxation: it will not work with multiple definitions\n"));
command_line.relax = 0;
}
return TRUE;
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}
/* This is called when there is a definition of a common symbol, or
when a common symbol is found for a symbol that is already defined,
or when two common symbols are found. We only do something if
-warn-common was used. */
static bfd_boolean
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multiple_common (struct bfd_link_info *info ATTRIBUTE_UNUSED,
const char *name,
bfd *obfd,
enum bfd_link_hash_type otype,
bfd_vma osize,
bfd *nbfd,
enum bfd_link_hash_type ntype,
bfd_vma nsize)
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{
if (! config.warn_common)
return TRUE;
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if (ntype == bfd_link_hash_defined
|| ntype == bfd_link_hash_defweak
|| ntype == bfd_link_hash_indirect)
{
ASSERT (otype == bfd_link_hash_common);
einfo (_("%B: warning: definition of `%T' overriding common\n"),
nbfd, name);
if (obfd != NULL)
einfo (_("%B: warning: common is here\n"), obfd);
}
else if (otype == bfd_link_hash_defined
|| otype == bfd_link_hash_defweak
|| otype == bfd_link_hash_indirect)
{
ASSERT (ntype == bfd_link_hash_common);
einfo (_("%B: warning: common of `%T' overridden by definition\n"),
nbfd, name);
if (obfd != NULL)
einfo (_("%B: warning: defined here\n"), obfd);
}
else
{
ASSERT (otype == bfd_link_hash_common && ntype == bfd_link_hash_common);
if (osize > nsize)
{
einfo (_("%B: warning: common of `%T' overridden by larger common\n"),
nbfd, name);
if (obfd != NULL)
einfo (_("%B: warning: larger common is here\n"), obfd);
}
else if (nsize > osize)
{
einfo (_("%B: warning: common of `%T' overriding smaller common\n"),
nbfd, name);
if (obfd != NULL)
einfo (_("%B: warning: smaller common is here\n"), obfd);
}
else
{
einfo (_("%B: warning: multiple common of `%T'\n"), nbfd, name);
if (obfd != NULL)
einfo (_("%B: warning: previous common is here\n"), obfd);
}
}
return TRUE;
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}
/* This is called when BFD has discovered a set element. H is the
entry in the linker hash table for the set. SECTION and VALUE
represent a value which should be added to the set. */
static bfd_boolean
2003-06-28 07:28:54 +02:00
add_to_set (struct bfd_link_info *info ATTRIBUTE_UNUSED,
struct bfd_link_hash_entry *h,
bfd_reloc_code_real_type reloc,
bfd *abfd,
asection *section,
bfd_vma value)
1999-05-03 09:29:11 +02:00
{
if (config.warn_constructors)
einfo (_("%P: warning: global constructor %s used\n"),
h->root.string);
if (! config.build_constructors)
return TRUE;
1999-05-03 09:29:11 +02:00
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ldctor_add_set_entry (h, reloc, NULL, section, value);
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if (h->type == bfd_link_hash_new)
{
h->type = bfd_link_hash_undefined;
h->u.undef.abfd = abfd;
/* We don't call bfd_link_add_undef to add this to the list of
undefined symbols because we are going to define it
ourselves. */
}
return TRUE;
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}
/* This is called when BFD has discovered a constructor. This is only
called for some object file formats--those which do not handle
constructors in some more clever fashion. This is similar to
adding an element to a set, but less general. */
static bfd_boolean
2003-06-28 07:28:54 +02:00
constructor_callback (struct bfd_link_info *info,
bfd_boolean constructor,
const char *name,
bfd *abfd,
asection *section,
bfd_vma value)
1999-05-03 09:29:11 +02:00
{
char *s;
struct bfd_link_hash_entry *h;
char set_name[1 + sizeof "__CTOR_LIST__"];
if (config.warn_constructors)
einfo (_("%P: warning: global constructor %s used\n"), name);
if (! config.build_constructors)
return TRUE;
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/* Ensure that BFD_RELOC_CTOR exists now, so that we can give a
useful error message. */
if (bfd_reloc_type_lookup (output_bfd, BFD_RELOC_CTOR) == NULL
2003-06-25 08:40:27 +02:00
&& (link_info.relocatable
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|| bfd_reloc_type_lookup (abfd, BFD_RELOC_CTOR) == NULL))
einfo (_("%P%F: BFD backend error: BFD_RELOC_CTOR unsupported\n"));
s = set_name;
if (bfd_get_symbol_leading_char (abfd) != '\0')
*s++ = bfd_get_symbol_leading_char (abfd);
if (constructor)
strcpy (s, "__CTOR_LIST__");
else
strcpy (s, "__DTOR_LIST__");
h = bfd_link_hash_lookup (info->hash, set_name, TRUE, TRUE, TRUE);
1999-05-03 09:29:11 +02:00
if (h == (struct bfd_link_hash_entry *) NULL)
einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
if (h->type == bfd_link_hash_new)
{
h->type = bfd_link_hash_undefined;
h->u.undef.abfd = abfd;
/* We don't call bfd_link_add_undef to add this to the list of
undefined symbols because we are going to define it
ourselves. */
}
ldctor_add_set_entry (h, BFD_RELOC_CTOR, name, section, value);
return TRUE;
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}
/* A structure used by warning_callback to pass information through
bfd_map_over_sections. */
struct warning_callback_info
{
bfd_boolean found;
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const char *warning;
const char *symbol;
asymbol **asymbols;
};
/* This is called when there is a reference to a warning symbol. */
static bfd_boolean
2003-06-28 07:28:54 +02:00
warning_callback (struct bfd_link_info *info ATTRIBUTE_UNUSED,
const char *warning,
const char *symbol,
bfd *abfd,
asection *section,
bfd_vma address)
1999-05-03 09:29:11 +02:00
{
/* This is a hack to support warn_multiple_gp. FIXME: This should
have a cleaner interface, but what? */
if (! config.warn_multiple_gp
&& strcmp (warning, "using multiple gp values") == 0)
return TRUE;
1999-05-03 09:29:11 +02:00
if (section != NULL)
einfo ("%C: %s\n", abfd, section, address, warning);
else if (abfd == NULL)
einfo ("%P: %s\n", warning);
else if (symbol == NULL)
einfo ("%B: %s\n", abfd, warning);
else
{
lang_input_statement_type *entry;
asymbol **asymbols;
struct warning_callback_info info;
/* Look through the relocs to see if we can find a plausible
address. */
entry = (lang_input_statement_type *) abfd->usrdata;
if (entry != NULL && entry->asymbols != NULL)
asymbols = entry->asymbols;
else
{
long symsize;
long symbol_count;
symsize = bfd_get_symtab_upper_bound (abfd);
if (symsize < 0)
einfo (_("%B%F: could not read symbols: %E\n"), abfd);
2003-06-28 07:28:54 +02:00
asymbols = xmalloc (symsize);
1999-05-03 09:29:11 +02:00
symbol_count = bfd_canonicalize_symtab (abfd, asymbols);
if (symbol_count < 0)
einfo (_("%B%F: could not read symbols: %E\n"), abfd);
if (entry != NULL)
{
entry->asymbols = asymbols;
entry->symbol_count = symbol_count;
}
}
info.found = FALSE;
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info.warning = warning;
info.symbol = symbol;
info.asymbols = asymbols;
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bfd_map_over_sections (abfd, warning_find_reloc, &info);
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if (! info.found)
einfo ("%B: %s\n", abfd, warning);
if (entry == NULL)
free (asymbols);
}
return TRUE;
1999-05-03 09:29:11 +02:00
}
/* This is called by warning_callback for each section. It checks the
relocs of the section to see if it can find a reference to the
symbol which triggered the warning. If it can, it uses the reloc
to give an error message with a file and line number. */
static void
2003-06-28 07:28:54 +02:00
warning_find_reloc (bfd *abfd, asection *sec, void *iarg)
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{
2003-06-28 07:28:54 +02:00
struct warning_callback_info *info = iarg;
1999-05-03 09:29:11 +02:00
long relsize;
arelent **relpp;
long relcount;
arelent **p, **pend;
if (info->found)
return;
relsize = bfd_get_reloc_upper_bound (abfd, sec);
if (relsize < 0)
einfo (_("%B%F: could not read relocs: %E\n"), abfd);
if (relsize == 0)
return;
2003-06-28 07:28:54 +02:00
relpp = xmalloc (relsize);
1999-05-03 09:29:11 +02:00
relcount = bfd_canonicalize_reloc (abfd, sec, relpp, info->asymbols);
if (relcount < 0)
einfo (_("%B%F: could not read relocs: %E\n"), abfd);
p = relpp;
pend = p + relcount;
for (; p < pend && *p != NULL; p++)
{
arelent *q = *p;
if (q->sym_ptr_ptr != NULL
&& *q->sym_ptr_ptr != NULL
&& strcmp (bfd_asymbol_name (*q->sym_ptr_ptr), info->symbol) == 0)
{
/* We found a reloc for the symbol we are looking for. */
einfo ("%C: %s\n", abfd, sec, q->address, info->warning);
info->found = TRUE;
1999-05-03 09:29:11 +02:00
break;
}
}
free (relpp);
}
/* This is called when an undefined symbol is found. */
static bfd_boolean
2003-06-28 07:28:54 +02:00
undefined_symbol (struct bfd_link_info *info ATTRIBUTE_UNUSED,
const char *name,
bfd *abfd,
asection *section,
bfd_vma address,
bfd_boolean error)
1999-05-03 09:29:11 +02:00
{
static char *error_name;
static unsigned int error_count;
#define MAX_ERRORS_IN_A_ROW 5
if (config.warn_once)
{
static struct bfd_hash_table *hash;
/* Only warn once about a particular undefined symbol. */
if (hash == NULL)
{
2003-06-28 07:28:54 +02:00
hash = xmalloc (sizeof (struct bfd_hash_table));
1999-05-03 09:29:11 +02:00
if (! bfd_hash_table_init (hash, bfd_hash_newfunc))
einfo (_("%F%P: bfd_hash_table_init failed: %E\n"));
}
if (bfd_hash_lookup (hash, name, FALSE, FALSE) != NULL)
return TRUE;
1999-05-03 09:29:11 +02:00
if (bfd_hash_lookup (hash, name, TRUE, TRUE) == NULL)
1999-05-03 09:29:11 +02:00
einfo (_("%F%P: bfd_hash_lookup failed: %E\n"));
}
/* We never print more than a reasonable number of errors in a row
for a single symbol. */
2003-06-28 07:28:54 +02:00
if (error_name != NULL
1999-05-03 09:29:11 +02:00
&& strcmp (name, error_name) == 0)
++error_count;
else
{
error_count = 0;
2003-06-28 07:28:54 +02:00
if (error_name != NULL)
1999-05-03 09:29:11 +02:00
free (error_name);
error_name = xstrdup (name);
1999-05-03 09:29:11 +02:00
}
if (section != NULL)
{
if (error_count < MAX_ERRORS_IN_A_ROW)
{
if (error)
einfo (_("%X%C: undefined reference to `%T'\n"),
abfd, section, address, name);
else
einfo (_("%C: warning: undefined reference to `%T'\n"),
abfd, section, address, name);
}
1999-05-03 09:29:11 +02:00
else if (error_count == MAX_ERRORS_IN_A_ROW)
{
if (error)
einfo (_("%X%D: more undefined references to `%T' follow\n"),
abfd, section, address, name);
else
einfo (_("%D: warning: more undefined references to `%T' follow\n"),
abfd, section, address, name);
}
else if (error)
einfo ("%X");
1999-05-03 09:29:11 +02:00
}
else
{
if (error_count < MAX_ERRORS_IN_A_ROW)
{
if (error)
einfo (_("%X%B: undefined reference to `%T'\n"),
abfd, name);
else
einfo (_("%B: warning: undefined reference to `%T'\n"),
abfd, name);
}
1999-05-03 09:29:11 +02:00
else if (error_count == MAX_ERRORS_IN_A_ROW)
{
if (error)
einfo (_("%X%B: more undefined references to `%T' follow\n"),
abfd, name);
else
einfo (_("%B: warning: more undefined references to `%T' follow\n"),
abfd, name);
}
else if (error)
einfo ("%X");
1999-05-03 09:29:11 +02:00
}
return TRUE;
1999-05-03 09:29:11 +02:00
}
/* Counter to limit the number of relocation overflow error messages
to print. Errors are printed as it is decremented. When it's
called and the counter is zero, a final message is printed
indicating more relocations were omitted. When it gets to -1, no
such errors are printed. If it's initially set to a value less
than -1, all such errors will be printed (--verbose does this). */
int overflow_cutoff_limit = 10;
1999-05-03 09:29:11 +02:00
/* This is called when a reloc overflows. */
static bfd_boolean
2003-06-28 07:28:54 +02:00
reloc_overflow (struct bfd_link_info *info ATTRIBUTE_UNUSED,
const char *name,
const char *reloc_name,
bfd_vma addend,
bfd *abfd,
asection *section,
bfd_vma address)
1999-05-03 09:29:11 +02:00
{
if (overflow_cutoff_limit == -1)
return TRUE;
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if (abfd == NULL)
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einfo (_("%P%X: generated"));
else
einfo ("%X%C:", abfd, section, address);
if (overflow_cutoff_limit >= 0
&& overflow_cutoff_limit-- == 0)
{
einfo (_(" additional relocation overflows omitted from the output\n"));
return TRUE;
}
1999-05-03 09:29:11 +02:00
einfo (_(" relocation truncated to fit: %s %T"), reloc_name, name);
if (addend != 0)
einfo ("+%v", addend);
einfo ("\n");
return TRUE;
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}
/* This is called when a dangerous relocation is made. */
static bfd_boolean
2003-06-28 07:28:54 +02:00
reloc_dangerous (struct bfd_link_info *info ATTRIBUTE_UNUSED,
const char *message,
bfd *abfd,
asection *section,
bfd_vma address)
1999-05-03 09:29:11 +02:00
{
2003-06-28 07:28:54 +02:00
if (abfd == NULL)
1999-05-03 09:29:11 +02:00
einfo (_("%P%X: generated"));
else
einfo ("%X%C:", abfd, section, address);
einfo (_("dangerous relocation: %s\n"), message);
return TRUE;
1999-05-03 09:29:11 +02:00
}
/* This is called when a reloc is being generated attached to a symbol
that is not being output. */
static bfd_boolean
2003-06-28 07:28:54 +02:00
unattached_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
const char *name,
bfd *abfd,
asection *section,
bfd_vma address)
1999-05-03 09:29:11 +02:00
{
2003-06-28 07:28:54 +02:00
if (abfd == NULL)
1999-05-03 09:29:11 +02:00
einfo (_("%P%X: generated"));
else
einfo ("%X%C:", abfd, section, address);
einfo (_(" reloc refers to symbol `%T' which is not being output\n"), name);
return TRUE;
1999-05-03 09:29:11 +02:00
}
/* This is called if link_info.notice_all is set, or when a symbol in
link_info.notice_hash is found. Symbols are put in notice_hash
using the -y option. */
static bfd_boolean
2003-06-28 07:28:54 +02:00
notice (struct bfd_link_info *info,
const char *name,
bfd *abfd,
asection *section,
bfd_vma value)
1999-05-03 09:29:11 +02:00
{
if (! info->notice_all
|| (info->notice_hash != NULL
&& bfd_hash_lookup (info->notice_hash, name, FALSE, FALSE) != NULL))
1999-05-03 09:29:11 +02:00
{
if (bfd_is_und_section (section))
einfo ("%B: reference to %s\n", abfd, name);
else
einfo ("%B: definition of %s\n", abfd, name);
}
if (command_line.cref || nocrossref_list != NULL)
add_cref (name, abfd, section, value);
return TRUE;
1999-05-03 09:29:11 +02:00
}