forked from Imagelibrary/binutils-gdb
Introduce buildsym-legacy.h
This introduces a new header, buildsym-legacy.h, and changes all the symbol readers to use it. The idea is to put the function-based interface, that relies on the buildsym_compunit global, into a separate header. Then when a symbol reader is updated to use the new interface, it can simply not include buildsym-legacy.h, so it's easy to be sure that the new API is used everywhere. gdb/ChangeLog 2018-07-20 Tom Tromey <tom@tromey.com> * xcoffread.c: Include buildsym-legacy.h. * windows-nat.c: Include buildsym-legacy.h. * stabsread.c: Include buildsym-legacy.h. * mdebugread.c: Include buildsym-legacy.h. * buildsym-legacy.h: New file. * buildsym-legacy.c: New file, from buildsym.c. * go32-nat.c: Include buildsym-legacy.h. * dwarf2read.c: Include buildsym-legacy.h. * dbxread.c: Include buildsym-legacy.h. * cp-namespace.c: Include buildsym-legacy.h. * coffread.c: Include buildsym-legacy.h. * buildsym.h: Move some contents to buildsym-legacy.h. * buildsym.c: Include buildsym-legacy.h. Move many functions to buildsym-legacy.c. * Makefile.in (HFILES_NO_SRCDIR): Add buildsym-legacy.h.
This commit is contained in:
Tom Tromey
377
gdb/buildsym-legacy.c
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377
gdb/buildsym-legacy.c
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@@ -0,0 +1,377 @@
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/* Legacy support routines for building symbol tables in GDB's internal format.
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Copyright (C) 1986-2018 Free Software Foundation, Inc.
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This file is part of GDB.
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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 of the License, or
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(at your option) any later version.
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This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "buildsym-legacy.h"
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/* The work-in-progress of the compunit we are building.
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This is created first, before any subfiles by start_symtab. */
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static struct buildsym_compunit *buildsym_compunit;
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void
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record_debugformat (const char *format)
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{
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buildsym_compunit->record_debugformat (format);
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}
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void
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record_producer (const char *producer)
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{
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buildsym_compunit->record_producer (producer);
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}
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/* See buildsym.h. */
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void
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set_last_source_file (const char *name)
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{
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gdb_assert (buildsym_compunit != nullptr || name == nullptr);
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if (buildsym_compunit != nullptr)
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buildsym_compunit->set_last_source_file (name);
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}
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/* See buildsym.h. */
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const char *
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get_last_source_file ()
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{
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if (buildsym_compunit == nullptr)
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return nullptr;
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return buildsym_compunit->get_last_source_file ();
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}
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/* See buildsym.h. */
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void
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set_last_source_start_addr (CORE_ADDR addr)
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{
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gdb_assert (buildsym_compunit != nullptr);
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buildsym_compunit->set_last_source_start_addr (addr);
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}
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/* See buildsym.h. */
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CORE_ADDR
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get_last_source_start_addr ()
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{
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gdb_assert (buildsym_compunit != nullptr);
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return buildsym_compunit->get_last_source_start_addr ();
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}
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/* See buildsym.h. */
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struct using_direct **
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get_local_using_directives ()
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{
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gdb_assert (buildsym_compunit != nullptr);
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return buildsym_compunit->get_local_using_directives ();
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}
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/* See buildsym.h. */
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void
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set_local_using_directives (struct using_direct *new_local)
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{
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gdb_assert (buildsym_compunit != nullptr);
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buildsym_compunit->set_local_using_directives (new_local);
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}
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/* See buildsym.h. */
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struct using_direct **
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get_global_using_directives ()
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{
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gdb_assert (buildsym_compunit != nullptr);
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return buildsym_compunit->get_global_using_directives ();
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}
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/* See buildsym.h. */
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bool
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outermost_context_p ()
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{
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gdb_assert (buildsym_compunit != nullptr);
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return buildsym_compunit->outermost_context_p ();
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}
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/* See buildsym.h. */
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struct context_stack *
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get_current_context_stack ()
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{
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gdb_assert (buildsym_compunit != nullptr);
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return buildsym_compunit->get_current_context_stack ();
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}
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/* See buildsym.h. */
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int
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get_context_stack_depth ()
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{
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gdb_assert (buildsym_compunit != nullptr);
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return buildsym_compunit->get_context_stack_depth ();
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}
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/* See buildsym.h. */
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struct subfile *
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get_current_subfile ()
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{
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gdb_assert (buildsym_compunit != nullptr);
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return buildsym_compunit->get_current_subfile ();
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}
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/* See buildsym.h. */
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struct pending **
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get_local_symbols ()
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{
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gdb_assert (buildsym_compunit != nullptr);
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return buildsym_compunit->get_local_symbols ();
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}
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/* See buildsym.h. */
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struct pending **
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get_file_symbols ()
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{
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gdb_assert (buildsym_compunit != nullptr);
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return buildsym_compunit->get_file_symbols ();
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}
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/* See buildsym.h. */
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struct pending **
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get_global_symbols ()
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{
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gdb_assert (buildsym_compunit != nullptr);
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return buildsym_compunit->get_global_symbols ();
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}
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void
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start_subfile (const char *name)
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{
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gdb_assert (buildsym_compunit != nullptr);
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buildsym_compunit->start_subfile (name);
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}
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void
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patch_subfile_names (struct subfile *subfile, const char *name)
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{
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gdb_assert (buildsym_compunit != nullptr);
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buildsym_compunit->patch_subfile_names (subfile, name);
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}
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void
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push_subfile ()
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{
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gdb_assert (buildsym_compunit != nullptr);
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buildsym_compunit->push_subfile ();
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}
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const char *
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pop_subfile ()
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{
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gdb_assert (buildsym_compunit != nullptr);
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return buildsym_compunit->pop_subfile ();
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}
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struct block *
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end_symtab_get_static_block (CORE_ADDR end_addr, int expandable, int required)
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{
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gdb_assert (buildsym_compunit != nullptr);
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return buildsym_compunit->end_symtab_get_static_block (end_addr, expandable,
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required);
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}
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/* Delete the buildsym compunit. */
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static void
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free_buildsym_compunit (void)
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{
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if (buildsym_compunit == NULL)
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return;
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delete buildsym_compunit;
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buildsym_compunit = NULL;
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}
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struct compunit_symtab *
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end_symtab_from_static_block (struct block *static_block,
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int section, int expandable)
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{
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gdb_assert (buildsym_compunit != nullptr);
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struct compunit_symtab *result
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= buildsym_compunit->end_symtab_from_static_block (static_block,
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section, expandable);
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free_buildsym_compunit ();
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return result;
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}
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struct compunit_symtab *
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end_symtab (CORE_ADDR end_addr, int section)
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{
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gdb_assert (buildsym_compunit != nullptr);
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struct compunit_symtab *result
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= buildsym_compunit->end_symtab (end_addr, section);
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free_buildsym_compunit ();
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return result;
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}
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struct compunit_symtab *
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end_expandable_symtab (CORE_ADDR end_addr, int section)
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{
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gdb_assert (buildsym_compunit != nullptr);
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struct compunit_symtab *result
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= buildsym_compunit->end_expandable_symtab (end_addr, section);
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free_buildsym_compunit ();
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return result;
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}
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void
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augment_type_symtab ()
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{
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gdb_assert (buildsym_compunit != nullptr);
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buildsym_compunit->augment_type_symtab ();
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free_buildsym_compunit ();
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}
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struct context_stack *
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push_context (int desc, CORE_ADDR valu)
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{
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gdb_assert (buildsym_compunit != nullptr);
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return buildsym_compunit->push_context (desc, valu);
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}
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struct context_stack
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pop_context ()
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{
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gdb_assert (buildsym_compunit != nullptr);
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return buildsym_compunit->pop_context ();
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}
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struct block *
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finish_block (struct symbol *symbol, struct pending_block *old_blocks,
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const struct dynamic_prop *static_link,
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CORE_ADDR start, CORE_ADDR end)
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{
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gdb_assert (buildsym_compunit != nullptr);
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return buildsym_compunit->finish_block (symbol, old_blocks, static_link,
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start, end);
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}
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void
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record_block_range (struct block *block, CORE_ADDR start,
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CORE_ADDR end_inclusive)
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{
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gdb_assert (buildsym_compunit != nullptr);
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buildsym_compunit->record_block_range (block, start, end_inclusive);
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}
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void
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record_line (struct subfile *subfile, int line, CORE_ADDR pc)
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{
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gdb_assert (buildsym_compunit != nullptr);
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buildsym_compunit->record_line (subfile, line, pc);
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}
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/* Start a new symtab for a new source file in OBJFILE. Called, for example,
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when a stabs symbol of type N_SO is seen, or when a DWARF
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TAG_compile_unit DIE is seen. It indicates the start of data for
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one original source file.
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NAME is the name of the file (cannot be NULL). COMP_DIR is the
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directory in which the file was compiled (or NULL if not known).
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START_ADDR is the lowest address of objects in the file (or 0 if
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not known). LANGUAGE is the language of the source file, or
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language_unknown if not known, in which case it'll be deduced from
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the filename. */
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struct compunit_symtab *
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start_symtab (struct objfile *objfile, const char *name, const char *comp_dir,
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CORE_ADDR start_addr, enum language language)
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{
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/* These should have been reset either by successful completion of building
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a symtab, or by the scoped_free_pendings destructor. */
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gdb_assert (buildsym_compunit == nullptr);
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buildsym_compunit = new struct buildsym_compunit (objfile, name, comp_dir,
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language, start_addr);
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return buildsym_compunit->get_compunit_symtab ();
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}
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/* Restart compilation for a symtab.
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CUST is the result of end_expandable_symtab.
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NAME, START_ADDR are the source file we are resuming with.
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This is used when a symtab is built from multiple sources.
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The symtab is first built with start_symtab/end_expandable_symtab
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and then for each additional piece call restart_symtab/augment_*_symtab.
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Note: At the moment there is only augment_type_symtab. */
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void
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restart_symtab (struct compunit_symtab *cust,
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const char *name, CORE_ADDR start_addr)
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{
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/* These should have been reset either by successful completion of building
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a symtab, or by the scoped_free_pendings destructor. */
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gdb_assert (buildsym_compunit == nullptr);
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buildsym_compunit
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= new struct buildsym_compunit (COMPUNIT_OBJFILE (cust),
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name,
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COMPUNIT_DIRNAME (cust),
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compunit_language (cust),
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start_addr,
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cust);
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}
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/* See buildsym.h. */
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struct compunit_symtab *
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buildsym_compunit_symtab (void)
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{
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gdb_assert (buildsym_compunit != NULL);
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return buildsym_compunit->get_compunit_symtab ();
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}
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/* See buildsym.h. */
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struct macro_table *
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get_macro_table (void)
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{
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struct objfile *objfile;
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gdb_assert (buildsym_compunit != NULL);
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return buildsym_compunit->get_macro_table ();
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}
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/* At end of reading syms, or in case of quit, ensure everything
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associated with building symtabs is freed.
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N.B. This is *not* intended to be used when building psymtabs. Some debug
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info readers call this anyway, which is harmless if confusing. */
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scoped_free_pendings::~scoped_free_pendings ()
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{
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free_buildsym_compunit ();
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}
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