binutils-gdb/bfd/plugin.h

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/* Plugin support for BFD.
Copyright (C) 2009-2020 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 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. */
#ifndef _PLUGIN_H_
#define _PLUGIN_H_
void bfd_plugin_set_program_name (const char *);
int bfd_plugin_open_input (bfd *, struct ld_plugin_input_file *);
void bfd_plugin_set_plugin (const char *);
Merge linker plugin handling into BFD plugin support Linker plugin_maybe_claim is the interface of linker plugin support. This patch extracts linker plugin_maybe_claim into plugin_object_p and makes it available to BFD via a new function: void register_ld_plugin_object_p (const bfd_target *(*) (bfd *)); bfd_plugin_object_p calls plugin_object_p registered by linker first. It adds an enum bfd_plugin_format field and a pointer to plugin dummy BFD so that plugin_object_p stores plugin dummy BFD to allow plugin_maybe_claim to retrieve it later. bfd/ PR ld/17878 * bfd.c (bfd_plugin_format): New. (bfd): Add plugin_format and plugin_dummy_bfd. * plugin.c (try_load_plugin): Take a pointer to bfd_boolean argument to return TRUE if any plugin is found. Set plugin_format. (has_plugin): New. (bfd_plugin_target_p): New. (bfd_plugin_specified_p): Likewise. (bfd_plugin_target_p): Likewise. (register_ld_plugin_object_p): Likewise. (bfd_plugin_set_plugin): Set has_plugin. (load_plugin): Cache try_load_plugin result. (bfd_plugin_object_p): Try ld_plugin_object_p first. Check plugin_format. * plugin.h (bfd_plugin_target_p): New. (bfd_plugin_specified_p): Likewise. (register_ld_plugin_object_p): Likewise. * bfd-in2.h: Regenerated. ld/ PR ld/17878 * plugin.c: Include ../bfd/plugin.h. (plugin_get_ir_dummy_bfd): Call bfd_create with link_info.output_bfd instead of srctemplate. Copy BFD info from srctemplate only if it doesn't use BFD plugin target vector. (plugin_load_plugins): Call register_ld_plugin_object_p with (plugin_object_p) (plugin_maybe_claim): Renamed to ... (plugin_object_p): This. Return dummy BFD target vector if input is calimed by plugin library, otherwise return NULL. Update plugin_format and plugin_dummy_bfd. (plugin_maybe_claim): New. Use plugin_object_p. xx
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bfd_boolean bfd_plugin_target_p (const bfd_target *);
bfd_boolean bfd_plugin_specified_p (void);
bfd_boolean bfd_link_plugin_object_p (bfd *);
Merge linker plugin handling into BFD plugin support Linker plugin_maybe_claim is the interface of linker plugin support. This patch extracts linker plugin_maybe_claim into plugin_object_p and makes it available to BFD via a new function: void register_ld_plugin_object_p (const bfd_target *(*) (bfd *)); bfd_plugin_object_p calls plugin_object_p registered by linker first. It adds an enum bfd_plugin_format field and a pointer to plugin dummy BFD so that plugin_object_p stores plugin dummy BFD to allow plugin_maybe_claim to retrieve it later. bfd/ PR ld/17878 * bfd.c (bfd_plugin_format): New. (bfd): Add plugin_format and plugin_dummy_bfd. * plugin.c (try_load_plugin): Take a pointer to bfd_boolean argument to return TRUE if any plugin is found. Set plugin_format. (has_plugin): New. (bfd_plugin_target_p): New. (bfd_plugin_specified_p): Likewise. (bfd_plugin_target_p): Likewise. (register_ld_plugin_object_p): Likewise. (bfd_plugin_set_plugin): Set has_plugin. (load_plugin): Cache try_load_plugin result. (bfd_plugin_object_p): Try ld_plugin_object_p first. Check plugin_format. * plugin.h (bfd_plugin_target_p): New. (bfd_plugin_specified_p): Likewise. (register_ld_plugin_object_p): Likewise. * bfd-in2.h: Regenerated. ld/ PR ld/17878 * plugin.c: Include ../bfd/plugin.h. (plugin_get_ir_dummy_bfd): Call bfd_create with link_info.output_bfd instead of srctemplate. Copy BFD info from srctemplate only if it doesn't use BFD plugin target vector. (plugin_load_plugins): Call register_ld_plugin_object_p with (plugin_object_p) (plugin_maybe_claim): Renamed to ... (plugin_object_p): This. Return dummy BFD target vector if input is calimed by plugin library, otherwise return NULL. Update plugin_format and plugin_dummy_bfd. (plugin_maybe_claim): New. Use plugin_object_p. xx
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void register_ld_plugin_object_p (const bfd_target *(*object_p) (bfd *));
typedef struct plugin_data_struct
{
int nsyms;
const struct ld_plugin_symbol *syms;
Use GCC LTO wrapper to get real symbols from LTO IR objects GCC LTO wrapper is needed to extract real symbols from LTO IR objects. This patch does the following: 1. Set up GCC LTO wrapper for each LTO IR object. 2. Run GCC LTO wrapper to get the real object. 3. Extract symbol info from the real object. 4. Cleanup afterwards. bfd/ PR binutils/25355 * configure.ac (HAVE_EXECUTABLE_SUFFIX): New AC_DEFINE. (EXECUTABLE_SUFFIX): Likewise. * config.in: Regenerated. * configure: Likewise. * plugin.c (bfd_plugin_close_and_cleanup): Removed. (plugin_list_entry): Add all_symbols_read, cleanup_handler, gcc, lto_wrapper, resolution_file, resolution_option, gcc_env, real_bfd, real_nsyms, real_syms, lto_nsyms and lto_syms. (get_lto_wrapper): New. (setup_lto_wrapper_env): Likewise. (current_plugin): Likewise. (register_all_symbols_read): Likewise. (register_cleanup): Likewise. (get_symbols): Likewise. (add_input_file): Likewise. (bfd_plugin_close_and_cleanup): Likewise. (claim_file): Removed. (register_claim_file): Set current_plugin->claim_file. (add_symbols): Make a copy of LTO symbols. Set lto_nsyms and lto_syms in current_plugin. (try_claim): Use current_plugin->claim_file. Call LTO plugin all_symbols_read handler. Copy real symbols to plugin_data. Call LTO plugin cleanup handler. Clean up for LTO wrapper. (try_load_plugin): Don't reuse the previous plugin for LTO wrapper. Set up GCC LTO wrapper if possible. Don't set plugin_list_iter->claim_file. (bfd_plugin_canonicalize_symtab): Use real LTO symbols if possible. * plugin.h (plugin_data_struct): Add real_bfd, real_nsyms and real_syms. ld/ PR binutils/25355 * testsuite/ld-plugin/lto.exp: Run PR binutils/25355 test. * testsuite/ld-plugin/pr25355.c: New file. * testsuite/ld-plugin/pr25355.d: Likewise. * testsuite/lib/ld-lib.exp (run_cc_link_tests): Support compile only dump.
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bfd *real_bfd;
long real_nsyms;
asymbol **real_syms;
}
plugin_data_struct;
#endif