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4a6afc88bb
more efficient backend code can be written for specific object files. * lderror.c, lderror.h, ldindr.c, ldindr.h, ldsym.c, ldsym.h, ldwarn.c, ldwarn.h, relax.c, relax.h: Removed. * ldctor.c, ldctor.h: Complete rewrite. * ldwrite.c, ldwrite.h: Complete rewrite. * ld.h (strip_symbols_type, strip_symbols): Removed. Use link_info.strip instead. Changed all uses. (discard_locals_type, discard_locals): Removed. Use link_info.discard instead. Changed all uses. (ld_config_type): Removed relocateable_output field; use link_info.relocateable instead; changed all uses. Added stats field. (set_asymbol_chain, get_asymbol_chain, get_loader_symbol, set_loader_symbol): Removed. * ldexp.h (node_class): Added etree_rel. (etree_type): Added rel field. * ldexp.c (exp_print_token): Bracketed table initialization. (exp_relop): New function. (fold_name): Use linker hash table rather than ldsym functions. (exp_fold_tree): Likewise. Also, handle etree_rel case. (exp_print_tree): Handle etree_rel. * ldgram.y (strip_symbols, discard_locals): Removed. (OPTION_stats, OPTION_no_keep_memory): New tokens. Handle them. (REL): New token. Does not appear in grammar, but needed for expression code. (file): Don't call lang_final; it's called by main anyhow. * ldlex.l: Accept -stats and -no-keep-memory options. * ldlang.h (fill_type): Make unsigned int, not unsigned short. * ldlang.c: Consistently use fill_type for fill argument. (lang_init_script_file, script_file): Removed. (create_object_symbols): Removed. Use link_info.create_object_symbols_section instead. Changed all uses. (lang_add_keepsyms_file): Removed. (lookup_name): Call bfd_link_add_symbols instead of ldmain_open_file_read_symbol. (wild): Don't iterate over script_file. (open_output): Create link hash table. (lang_place_undefineds): Rewrote. (lang_size_sections): Handle relaxing (doesn't work yet). (lang_relocate_globals): Removed. (lang_finish): Use link hash table rather than ldsym functions. (lang_common): Rewrote. (lang_one_common): New function. (ldlang_add_file): Add file to link_info.input_bfds list. Set usrdata. (create_symbol): Removed. (lang_process): Don't call lang_init_script_file. Call ldctor_build_sets rather than find_constructors. Don't call lang_relocate_globals. (lang_abs_symbol_at_beginning_of): Rewrote. (lang_abs_symbol_at_end_of): Rewrote. * ldmain.c (had_y): Removed. (lprefix, lprefix_len): Removed; use link_info fields instead. Changed all uses. (multiple_def_count, commons_pending, undefined_global_sym_count, total_symbols_seen, total_files_seen): Removed. (link_callbacks, link_info): New variables. (main): Initialize link_info. Don't call init_bfd_error_vector or ldsym_init. Don't set now unused variables. Handle -stats. (get_emulation): Removed obsolete and nonfunctional GNU960 code. (add_ysym): Rewrote. (read_entry_symbols, refize, enter_global_ref, enter_file_symbols, search_library, gnu960_check_format, decode_library_subfile, linear_library, symdef_library, clear_syms, subfile_wanted_p): Removed. (add_keepsyms_file, add_archive_element, multiple_definition, multiple_common, add_to_set, warning_callback, undefined_symbol, reloc_overflow, reloc_dangerous, unattached_reloc, notice_ysym): New functions. * ldmisc.c (vfinfo): Accept a string for %T, not a symbol. Don't require symbols for %C; look them up instead. * emultempl/hppaosf.em: Pass link_info to hppa_look_for_stubs_in_section. * Makefile.in: Rebuilt dependencies. (CFILES): Removed lderror.c, ldindr.c, ldsym.c, ldwarn.c, and relax.c. (HFILES): Removed lderror.h, ldindr.h, ldsym.h, ldwarn.h, and relax.h. (EMULATION_OFILES): Depend on bfdlink.h, ldmain.h, ldexp.h, ldlang.h and ldctor.h. * Makefile.in (ldlex.c): Don't depend on ldgram.h. Remove declarations of free and malloc from flex output. Change malloc to ldmalloc in flex output.
177 lines
3.1 KiB
C
177 lines
3.1 KiB
C
/* ldemul.c -- clearing house for ld emulation states
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Copyright (C) 1991, 1993 Free Software Foundation, Inc.
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This file is part of GLD, the Gnu Linker.
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GLD is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GLD is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GLD; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "bfd.h"
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#include "sysdep.h"
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#include "config.h"
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#include "ld.h"
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#include "ldemul.h"
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#include "ldmisc.h"
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#include "ldfile.h"
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#include "ldmain.h"
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#include "ldemul-list.h"
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ld_emulation_xfer_type *ld_emulation;
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void
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ldemul_hll(name)
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char *name;
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{
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ld_emulation->hll(name);
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}
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void ldemul_syslib(name)
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char *name;
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{
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ld_emulation->syslib(name);
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}
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void
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ldemul_after_parse()
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{
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ld_emulation->after_parse();
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}
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void
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ldemul_before_parse()
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{
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ld_emulation->before_parse();
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}
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void
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ldemul_after_allocation()
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{
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ld_emulation->after_allocation();
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}
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void
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ldemul_before_allocation()
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{
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if (ld_emulation->before_allocation)
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ld_emulation->before_allocation();
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}
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void
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ldemul_set_output_arch()
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{
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ld_emulation->set_output_arch();
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}
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void
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ldemul_finish()
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{
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if (ld_emulation->finish)
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ld_emulation->finish();
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}
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void
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ldemul_create_output_section_statements()
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{
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if (ld_emulation->create_output_section_statements)
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ld_emulation->create_output_section_statements();
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}
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char *
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ldemul_get_script(isfile)
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int *isfile;
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{
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return ld_emulation->get_script(isfile);
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}
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char *
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ldemul_choose_target()
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{
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return ld_emulation->choose_target();
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}
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/* The default choose_target function. */
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char *
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ldemul_default_target()
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{
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char *from_outside = getenv(TARGET_ENVIRON);
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if (from_outside != (char *)NULL)
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return from_outside;
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return ld_emulation->target_name;
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}
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void
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after_parse_default()
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{
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}
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void
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after_allocation_default()
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{
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}
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void
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before_allocation_default()
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{
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}
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void
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set_output_arch_default()
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{
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/* Set the output architecture and machine if possible */
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bfd_set_arch_mach(output_bfd,
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ldfile_output_architecture, ldfile_output_machine);
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}
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void
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syslib_default(ignore)
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char *ignore;
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{
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info_msg ("%S SYSLIB ignored\n");
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}
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void
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hll_default(ignore)
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char *ignore;
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{
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info_msg ("%S HLL ignored\n");
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}
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ld_emulation_xfer_type *ld_emulations[] = { EMULATION_LIST };
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void
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ldemul_choose_mode(target)
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char *target;
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{
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ld_emulation_xfer_type **eptr = ld_emulations;
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/* Ignore "gld" prefix. */
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if (target[0] == 'g' && target[1] == 'l' && target[2] == 'd')
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target += 3;
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for (; *eptr; eptr++)
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{
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if (strcmp(target, (*eptr)->emulation_name) == 0)
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{
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ld_emulation = *eptr;
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return;
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}
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}
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einfo("%P%F: unrecognised emulation mode: %s\n",target);
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}
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