1cd0b7167e
ChangeLog: 2010-10-07 Dave Korn <dave.korn.cygwin@gmail.com> * configure.ac (build_lto_plugin): New shell variable. (--enable-lto): Turn on by default for all non-ELF platforms that have had LTO support added so far. Set build_lto_plugin appropriately for both ELF and non-ELF. (configdirs): Add lto-plugin or not based on build_lto_plugin. * configure: Regenerate. gcc/ChangeLog: 2010-10-07 Dave Korn <dave.korn.cygwin@gmail.com> * config.host (host_lto_plugin_soname): New shell variable. * configure.ac (LTOPLUGINSONAME): Add an AC_DEFINE for the above. * config.in: Regenerate. * configure: Regenerate. * gcc.c (main): Use LTOPLUGINSONAME instead of hard-coding name of LTO plugin shared library. lto-plugin/ChangeLog: 2010-10-07 Dave Korn <dave.korn.cygwin@gmail.com> * configure.ac: Source config.gcc to determine lto_binary_reader. (LTO_FORMAT): New AC_SUBST variable inferred from lto_binary_reader. * Makefile.am (LTO_FORMAT): Import. (liblto_plugin_la_SOURCES): Add object format dependent module defined by LTO_FORMAT. (liblto_plugin_la_LIBADD): Allow for both PIC and non-PIC libiberty, and work around libtool warning. * configure: Regenerate. * Makefile.in: Likewise. * lto-plugin.c (struct sym_aux): Move to new lto-plugin.h. (struct sym_aux): Likewise. (struct plugin_symtab): Likewise. (struct plugin_file_info): Likewise. (LTO_SECTION_PREFIX): Likewise. (add_symbols): Make non-static. (claimed_files): Likewise. (num_claimed_files): Likewise. (check): Likewise. (parse_table_entry): Likewise. (translate): Likewise. (resolve_conflicts): Likewise. (process_symtab): Move to new lto-plugin-elf.c object format dependent source file. (claim_file_handler): Likewise, and make non-static. (onload): Call new onload_format_checks function. * lto-plugin.h: New file. (LTO_SECTION_PREFIX): Move here. (struct sym_aux): Likewise. (struct plugin_symtab): Likewise. (struct plugin_file_info): Likewise. (claim_file_handler): Add new function prototype. (onload_format_checks): Likewise. (check): Declare extern. (translate): Likewise. (parse_table_entry): Likewise. (resolve_conflicts): Likewise. (add_symbols): Likewise. (claimed_files): Likewise. (num_claimed_files): Likewise. * lto-plugin-elf.c (process_symtab): Move here. (claim_file_handler): Likewise, and make non-static. (onload_format_checks): New function factored out from onload. * lto-plugin-coff.c (claim_file_handler): New function stub. (onload_format_checks): Likewise. From-SVN: r165133
85 lines
2.4 KiB
C
85 lines
2.4 KiB
C
/* Common declarations for LTO plugin for gold and/or GNU ld.
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Copyright (C) 2009, 2010 Free Software Foundation, Inc.
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Contributed by Rafael Avila de Espindola (espindola@google.com).
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This program 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 3, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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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 this program; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#include <stdbool.h>
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#include "plugin-api.h"
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/* LTO magic section name. */
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#define LTO_SECTION_PREFIX ".gnu.lto_.symtab"
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/* The part of the symbol table the plugin has to keep track of. Note that we
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must keep SYMS until all_symbols_read is called to give the linker time to
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copy the symbol information. */
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struct sym_aux
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{
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uint32_t slot;
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unsigned id;
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unsigned next_conflict;
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};
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struct plugin_symtab
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{
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int nsyms;
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struct sym_aux *aux;
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struct ld_plugin_symbol *syms;
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unsigned id;
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};
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/* All that we have to remember about a file. */
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struct plugin_file_info
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{
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char *name;
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void *handle;
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struct plugin_symtab symtab;
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struct plugin_symtab conflicts;
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};
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/* These are the methods supplied by one of the object format
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dependent files lto-plugin-elf.c or lto-plugin-coff.c */
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extern enum ld_plugin_status claim_file_handler
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(const struct ld_plugin_input_file *file, int *claimed);
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extern enum ld_plugin_status onload_format_checks (struct ld_plugin_tv *tv);
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/* These methods are made available to the object format
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dependent files. */
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extern void check (bool gate, enum ld_plugin_level level, const char *text);
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extern void translate (char *data, char *end, struct plugin_symtab *out);
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extern char *parse_table_entry (char *p, struct ld_plugin_symbol *entry,
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struct sym_aux *aux);
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extern void resolve_conflicts (struct plugin_symtab *t,
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struct plugin_symtab *conflicts);
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/* And this callback function is exposed. */
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extern ld_plugin_add_symbols add_symbols;
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/* Along with these two variables. */
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extern struct plugin_file_info *claimed_files;
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extern unsigned int num_claimed_files;
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