From d7f09764d7bc66b9997c811c22e11efc87b44792 Mon Sep 17 00:00:00 2001 From: Diego Novillo Date: Sat, 3 Oct 2009 17:10:11 -0400 Subject: Merge lto branch into trunk. From-SVN: r152434 --- include/ChangeLog | 5 + include/lto-symtab.h | 41 ++++++++ include/plugin-api.h | 263 +++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 309 insertions(+) create mode 100644 include/lto-symtab.h create mode 100644 include/plugin-api.h (limited to 'include') diff --git a/include/ChangeLog b/include/ChangeLog index 2a2bebc..63cebab 100644 --- a/include/ChangeLog +++ b/include/ChangeLog @@ -1,3 +1,8 @@ +2008-10-03 Rafael Espindola + + * plugin-api.h: New. + * lto-symtab.h: New. + 2009-09-29 Jason Merrill * demangle.h (enum demangle_component_type): Add diff --git a/include/lto-symtab.h b/include/lto-symtab.h new file mode 100644 index 0000000..9312c5d --- /dev/null +++ b/include/lto-symtab.h @@ -0,0 +1,41 @@ +/* Data types used in the IL symbol table. + Copyright (C) 2009 Free Software Foundation, Inc. + Contributed by Rafael Espindola + +This file is part of GCC. + +GCC 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 3, or (at your option) any later +version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING3. If not see +. */ + +#ifndef GCC_LTO_SYMTAB_H +#define GCC_LTO_SYMTAB_H + +enum gcc_plugin_symbol_kind + { + GCCPK_DEF, + GCCPK_WEAKDEF, + GCCPK_UNDEF, + GCCPK_WEAKUNDEF, + GCCPK_COMMON + }; + +enum gcc_plugin_symbol_visibility + { + GCCPV_DEFAULT, + GCCPV_PROTECTED, + GCCPV_INTERNAL, + GCCPV_HIDDEN + }; + +#endif /* GCC_LTO_SYMTAB_H */ diff --git a/include/plugin-api.h b/include/plugin-api.h new file mode 100644 index 0000000..bb038ad --- /dev/null +++ b/include/plugin-api.h @@ -0,0 +1,263 @@ +/* plugin-api.h -- External linker plugin API. */ + +/* Copyright 2009 Free Software Foundation, Inc. + Written by Cary Coutant . + + This file is part of binutils. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ + +/* This file defines the interface for writing a linker plugin, which is + described at < http://gcc.gnu.org/wiki/whopr/driver >. */ + +#ifndef PLUGIN_API_H +#define PLUGIN_API_H + +#include +#include + +#ifdef __cplusplus +extern "C" +{ +#endif + +/* Status code returned by most API routines. */ + +enum ld_plugin_status +{ + LDPS_OK = 0, + LDPS_NO_SYMS, /* Attempt to get symbols that haven't been added. */ + LDPS_ERR + /* Additional Error codes TBD. */ +}; + +/* The version of the API specification. */ + +enum ld_plugin_api_version +{ + LD_PLUGIN_API_VERSION = 1 +}; + +/* The type of output file being generated by the linker. */ + +enum ld_plugin_output_file_type +{ + LDPO_REL, + LDPO_EXEC, + LDPO_DYN +}; + +/* An input file managed by the plugin library. */ + +struct ld_plugin_input_file +{ + const char *name; + int fd; + off_t offset; + off_t filesize; + void *handle; +}; + +/* A symbol belonging to an input file managed by the plugin library. */ + +struct ld_plugin_symbol +{ + char *name; + char *version; + int def; + int visibility; + uint64_t size; + char *comdat_key; + int resolution; +}; + +/* Whether the symbol is a definition, reference, or common, weak or not. */ + +enum ld_plugin_symbol_kind +{ + LDPK_DEF, + LDPK_WEAKDEF, + LDPK_UNDEF, + LDPK_WEAKUNDEF, + LDPK_COMMON +}; + +/* The visibility of the symbol. */ + +enum ld_plugin_symbol_visibility +{ + LDPV_DEFAULT, + LDPV_PROTECTED, + LDPV_INTERNAL, + LDPV_HIDDEN +}; + +/* How a symbol is resolved. */ + +enum ld_plugin_symbol_resolution +{ + LDPR_UNKNOWN = 0, + + /* Symbol is still undefined at this point. */ + LDPR_UNDEF, + + /* This is the prevailing definition of the symbol, with references from + regular object code. */ + LDPR_PREVAILING_DEF, + + /* This is the prevailing definition of the symbol, with no + references from regular objects. It is only referenced from IR + code. */ + LDPR_PREVAILING_DEF_IRONLY, + + /* This definition was pre-empted by a definition in a regular + object file. */ + LDPR_PREEMPTED_REG, + + /* This definition was pre-empted by a definition in another IR file. */ + LDPR_PREEMPTED_IR, + + /* This symbol was resolved by a definition in another IR file. */ + LDPR_RESOLVED_IR, + + /* This symbol was resolved by a definition in a regular object + linked into the main executable. */ + LDPR_RESOLVED_EXEC, + + /* This symbol was resolved by a definition in a shared object. */ + LDPR_RESOLVED_DYN +}; + +/* The plugin library's "claim file" handler. */ + +typedef +enum ld_plugin_status +(*ld_plugin_claim_file_handler) ( + const struct ld_plugin_input_file *file, int *claimed); + +/* The plugin library's "all symbols read" handler. */ + +typedef +enum ld_plugin_status +(*ld_plugin_all_symbols_read_handler) (void); + +/* The plugin library's cleanup handler. */ + +typedef +enum ld_plugin_status +(*ld_plugin_cleanup_handler) (void); + +/* The linker's interface for registering the "claim file" handler. */ + +typedef +enum ld_plugin_status +(*ld_plugin_register_claim_file) (ld_plugin_claim_file_handler handler); + +/* The linker's interface for registering the "all symbols read" handler. */ + +typedef +enum ld_plugin_status +(*ld_plugin_register_all_symbols_read) ( + ld_plugin_all_symbols_read_handler handler); + +/* The linker's interface for registering the cleanup handler. */ + +typedef +enum ld_plugin_status +(*ld_plugin_register_cleanup) (ld_plugin_cleanup_handler handler); + +/* The linker's interface for adding symbols from a claimed input file. */ + +typedef +enum ld_plugin_status +(*ld_plugin_add_symbols) (void *handle, int nsyms, + const struct ld_plugin_symbol *syms); + +/* The linker's interface for retrieving symbol resolution information. */ + +typedef +enum ld_plugin_status +(*ld_plugin_get_symbols) (const void *handle, int nsyms, + struct ld_plugin_symbol *syms); + +/* The linker's interface for adding a compiled input file. */ + +typedef +enum ld_plugin_status +(*ld_plugin_add_input_file) (char *pathname); + +/* The linker's interface for issuing a warning or error message. */ + +typedef +enum ld_plugin_status +(*ld_plugin_message) (int level, char *format, ...); + +enum ld_plugin_level +{ + LDPL_INFO, + LDPL_WARNING, + LDPL_ERROR, + LDPL_FATAL +}; + +/* Values for the tv_tag field of the transfer vector. */ + +enum ld_plugin_tag +{ + LDPT_NULL = 0, + LDPT_API_VERSION, + LDPT_GOLD_VERSION, + LDPT_LINKER_OUTPUT, + LDPT_OPTION, + LDPT_REGISTER_CLAIM_FILE_HOOK, + LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK, + LDPT_REGISTER_CLEANUP_HOOK, + LDPT_ADD_SYMBOLS, + LDPT_GET_SYMBOLS, + LDPT_ADD_INPUT_FILE, + LDPT_MESSAGE +}; + +/* The plugin transfer vector. */ + +struct ld_plugin_tv +{ + enum ld_plugin_tag tv_tag; + union + { + int tv_val; + const char *tv_string; + ld_plugin_register_claim_file tv_register_claim_file; + ld_plugin_register_all_symbols_read tv_register_all_symbols_read; + ld_plugin_register_cleanup tv_register_cleanup; + ld_plugin_add_symbols tv_add_symbols; + ld_plugin_get_symbols tv_get_symbols; + ld_plugin_add_input_file tv_add_input_file; + ld_plugin_message tv_message; + } tv_u; +}; + +/* The plugin library's "onload" entry point. */ + +typedef +enum ld_plugin_status +(*ld_plugin_onload) (struct ld_plugin_tv *tv); + +#ifdef __cplusplus +}; +#endif + +#endif /* !defined(PLUGIN_API_H) */ -- cgit v1.1