#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "backend.h"
#include "rtl.h"
#include "tree.h"
#include "gimple.h"
#include "cgraph.h"
#include "data-streamer.h"
#include "langhooks.h"
#include "lto-compress.h"
#include "print-tree.h"

Include dependency graph for lto-section-out.cc:

Functions
static void	lto_append_data (const char chars, unsigned int num_chars, void opaque)
void	lto_begin_section (const char *name, bool compress)
void	lto_end_section (void)
void	lto_write_data (const void *data, unsigned int size)
void	lto_write_raw_data (const void *data, unsigned int size)
void	lto_write_stream (struct lto_output_stream *obs)
struct lto_simple_output_block *	lto_create_simple_output_block (enum lto_section_type section_type)
void	lto_destroy_simple_output_block (struct lto_simple_output_block *ob)
struct lto_out_decl_state *	lto_new_out_decl_state (void)
void	lto_delete_out_decl_state (struct lto_out_decl_state *state)
struct lto_out_decl_state *	lto_get_out_decl_state (void)
void	lto_push_out_decl_state (struct lto_out_decl_state *state)
struct lto_out_decl_state *	lto_pop_out_decl_state (void)
void	lto_record_function_out_decl_state (tree fn_decl, struct lto_out_decl_state *state)

Variables
static vec< lto_out_decl_state_ptr >	decl_state_stack
vec< lto_out_decl_state_ptr >	lto_function_decl_states
static struct lto_compression_stream *	compression_stream = NULL

Function Documentation

◆ lto_append_data()

void lto_append_data	(	const char *	chars,
		unsigned int	num_chars,
		void *	opaque )

static

Flush compressed stream data function, sends NUM_CHARS from CHARS
to the append lang hook, OPAQUE is currently always NULL.

References lang_hooks_for_lto::append_data, gcc_assert, lang_hooks::lto, and NULL.

◆ lto_begin_section()

void lto_begin_section	(	const char *	name,
		bool	compress )

Begin a new output section named NAME. If COMPRESS is true, zlib compress
the section.

References lang_hooks_for_lto::begin_section, compression_stream, gcc_assert, lang_hooks::lto, lto_append_data(), lto_start_compression(), NULL, and streamer_dump_file.

Referenced by copy_function_or_variable(), lto_destroy_simple_output_block(), lto_output_toplevel_asms(), lto_write_mode_table(), lto_write_options(), produce_asm_for_decls(), produce_lto_section(), produce_symbol_asm(), produce_symtab(), and produce_symtab_extension().

◆ lto_create_simple_output_block()

struct lto_simple_output_block * lto_create_simple_output_block ( enum lto_section_type section_type )


Create the output block and return it.

References lto_simple_output_block::decl_state, lto_get_out_decl_state(), lto_simple_output_block::main_stream, and lto_simple_output_block::section_type.

Referenced by ipa_profile_write_summary(), ipa_reference_write_optimization_summary(), output_offload_tables(), output_refs(), output_symtab(), and pure_const_write_summary().

◆ lto_delete_out_decl_state()

void lto_delete_out_decl_state ( struct lto_out_decl_state * state )


Delete STATE and components.

References free(), i, lto_destroy_tree_ref_encoder(), and LTO_N_DECL_STREAMS.

Referenced by ipa_write_optimization_summaries(), ipa_write_summaries_1(), and produce_asm_for_decls().

◆ lto_destroy_simple_output_block()

void lto_destroy_simple_output_block ( struct lto_simple_output_block * ob )


Produce a simple section for one of the ipa passes.

References free(), header, lto_begin_section(), lto_end_section(), lto_get_section_name(), lto_write_data(), lto_write_stream(), lto_simple_output_block::main_stream, NULL, lto_simple_output_block::section_type, and lto_output_stream::total_size.

Referenced by ipa_profile_write_summary(), ipa_reference_write_optimization_summary(), output_offload_tables(), output_refs(), output_symtab(), and pure_const_write_summary().

◆ lto_end_section()

void lto_end_section ( void )


End the current output section.

References compression_stream, lang_hooks_for_lto::end_section, lang_hooks::lto, lto_end_compression(), and NULL.

Referenced by copy_function_or_variable(), lto_destroy_simple_output_block(), lto_output_toplevel_asms(), lto_write_mode_table(), lto_write_options(), produce_asm_for_decls(), produce_lto_section(), produce_symbol_asm(), produce_symtab(), and produce_symtab_extension().

◆ lto_get_out_decl_state()

struct lto_out_decl_state * lto_get_out_decl_state ( void )


Get the currently used lto_out_decl_state structure.

References decl_state_stack.

Referenced by copy_function_or_variable(), create_output_block(), ipa_write_optimization_summaries(), ipa_write_summaries_1(), lto_create_simple_output_block(), lto_output(), produce_asm_for_decls(), and pure_const_write_summary().

◆ lto_new_out_decl_state()

struct lto_out_decl_state * lto_new_out_decl_state ( void )


Return a new lto_out_decl_state.

References i, lto_init_tree_ref_encoder(), and LTO_N_DECL_STREAMS.

Referenced by ipa_write_optimization_summaries(), ipa_write_summaries_1(), and lto_output().

◆ lto_pop_out_decl_state()

struct lto_out_decl_state * lto_pop_out_decl_state ( void )


Pop the currently used out-decl state from top of stack.

References decl_state_stack.

Referenced by ipa_write_optimization_summaries(), ipa_write_summaries_1(), and lto_output().

◆ lto_push_out_decl_state()

void lto_push_out_decl_state ( struct lto_out_decl_state * state )


Push STATE to top of out decl stack.

References decl_state_stack.

Referenced by ipa_write_optimization_summaries(), ipa_write_summaries_1(), and lto_output().

◆ lto_record_function_out_decl_state()

void lto_record_function_out_decl_state	(	tree	fn_decl,
		struct lto_out_decl_state *	state )

Record STATE after it has been used in serializing the body of
FN_DECL.  STATE should no longer be used by the caller.  The ownership
of it is taken over from this point.

References lto_out_decl_state::fn_decl, i, lto_function_decl_states, LTO_N_DECL_STREAMS, and NULL.

Referenced by lto_output().

◆ lto_write_data()

void lto_write_data	(	const void *	data,
		unsigned int	size )


Write SIZE bytes starting at DATA to the assembler.

References lang_hooks_for_lto::append_data, compression_stream, lang_hooks::lto, lto_compress_block(), and NULL.

Referenced by lto_destroy_simple_output_block(), lto_output_decl_state_refs(), lto_output_toplevel_asms(), lto_write_mode_table(), lto_write_options(), produce_asm_for_decls(), produce_lto_section(), produce_symbol_asm(), produce_symtab_extension(), write_global_references(), write_symbol(), and write_symbol_extension_info().

◆ lto_write_raw_data()

void lto_write_raw_data	(	const void *	data,
		unsigned int	size )


Write SIZE bytes starting at DATA to the assembler.

References lang_hooks_for_lto::append_data, lang_hooks::lto, and NULL.

Referenced by copy_function_or_variable().

◆ lto_write_stream()

void lto_write_stream ( struct lto_output_stream * obs )

Write all of the chars in OBS to the assembler.  Recycle the blocks
in obs as this is being done.

References lang_hooks_for_lto::append_data, compression_stream, lto_output_stream::first_block, free(), if(), lto_output_stream::left_in_block, lang_hooks::lto, lto_compress_block(), and lto_char_ptr_base::ptr.

Referenced by lto_destroy_simple_output_block(), lto_output_toplevel_asms(), lto_write_mode_table(), produce_asm_for_decls(), and produce_symbol_asm().

Variable Documentation

◆ compression_stream

struct lto_compression_stream* compression_stream = NULL

static


Pointer to the current compression stream.

Referenced by lto_begin_section(), lto_end_section(), lto_write_data(), and lto_write_stream().

◆ decl_state_stack

vec<lto_out_decl_state_ptr> decl_state_stack

static

Functions for writing LTO sections.

   Copyright (C) 2009-2025 Free Software Foundation, Inc.
   Contributed by Kenneth Zadeck <zadeck@naturalbridge.com>

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
<http://www.gnu.org/licenses/>.

Referenced by lto_get_out_decl_state(), lto_pop_out_decl_state(), and lto_push_out_decl_state().

◆ lto_function_decl_states

vec<lto_out_decl_state_ptr> lto_function_decl_states

List of out decl states used by functions.  We use this to
generate the decl directory later.

Referenced by cl_optimization_stream_in(), lto_record_function_out_decl_state(), and produce_asm_for_decls().

Functions

Variables

Function Documentation

◆ lto_append_data()

◆ lto_begin_section()

◆ lto_create_simple_output_block()

◆ lto_delete_out_decl_state()

◆ lto_destroy_simple_output_block()

◆ lto_end_section()

◆ lto_get_out_decl_state()

◆ lto_new_out_decl_state()

◆ lto_pop_out_decl_state()

◆ lto_push_out_decl_state()

◆ lto_record_function_out_decl_state()

◆ lto_write_data()

◆ lto_write_raw_data()

◆ lto_write_stream()

Variable Documentation

◆ compression_stream

◆ decl_state_stack

◆ lto_function_decl_states