1999-04-16 09:35:26 +08:00
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/* Build symbol tables in GDB's internal format.
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2005-12-18 06:34:03 +08:00
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Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1995, 1996,
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2010-01-01 15:32:07 +08:00
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1997, 1998, 1999, 2000, 2002, 2003, 2007, 2008, 2009, 2010
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2008-01-02 06:53:26 +08:00
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Free Software Foundation, Inc.
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1999-04-16 09:35:26 +08:00
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1999-07-08 04:19:36 +08:00
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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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2007-08-24 02:08:50 +08:00
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the Free Software Foundation; either version 3 of the License, or
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1999-07-08 04:19:36 +08:00
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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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2007-08-24 02:08:50 +08:00
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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1999-04-16 09:35:26 +08:00
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#if !defined (BUILDSYM_H)
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#define BUILDSYM_H 1
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2003-04-12 Andrew Cagney <cagney@redhat.com>
* gdbarch.sh: Add missing opaque declarations.
* gdbarch.h: Regnerate.
* symtab.h: Add missing opaque declarations.
* value.h, target.h, symfile.h, stabsread.h: Ditto.
* x86-64-tdep.h, xmodem.h, monitor.h, typeprint.h: Ditto.
* srec.h, solib-svr4.h, source.h, inferior.h: Ditto.
* ser-unix.h, serial.h, remote-utils.h, gdbcore.h: Ditto.
* ppc-tdep.h, ocd.h, mips-tdep.h, gdbtypes.h: Ditto.
* buildsym.h, builtin-regs.h, linespec.h, language.h: Ditto.
* i387-tdep.h, gdbthread.h, event-top.h, gdb.h: Ditto.
* dwarf2cfi.h, doublest.h, disasm.h, cp-abi.h: Ditto.
* cli-out.h, c-lang.h, ax-gdb.h, arch-utils.h: Ditto.
* ada-lang.h, config/nm-lynx.h, config/nm-linux.h: Ditto.
* config/sparc/tm-sp64.h, config/rs6000/tm-rs6000.h: Ditto.
* config/pa/tm-hppah.h, config/m68k/tm-delta68.h: Ditto.
* cli/cli-setshow.h, cli/cli-script.h: Ditto.
2003-04-13 01:41:26 +08:00
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struct objfile;
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struct symbol;
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Support lexical blocks and function bodies that occupy
non-contiguous address ranges.
* addrmap.c, addrmap.h: New files.
* block.h (struct addrmap): New forward declaration.
(struct blockvector): New member, 'map'.
(BLOCKVECTOR_MAP): New accessor macro.
* block.c: #include "addrmap.h"
(blockvector_for_pc_sect): If the blockvector we've found has
an address map, use it instead of searching the blocks.
* buildsym.c: #include "addrmap.h"
(pending_addrmap_obstack, pending_addrmap_interesting): New static
variables.
(really_free_pendings): If we have a pending addrmap, free it too.
(record_block_range): New function.
(make_blockvector): If we have an interesting pending addrmap,
record it in the new blockvector.
(start_symtab, buildsym_init): Assert that there is no pending
addrmap now; we should have cleaned up any addrmaps we'd built
previously.
(end_symtab): If there is a pending addrmap left over that didn't
get included in the blockvector, free it.
* buildsym.h (struct addrmap): New forward declaration.
(record_block_range): New prototype.
* objfiles.c: #include "addrmap.h".
(objfile_relocate): Relocate the blockvector's address map, if
present.
* dwarf2read.c (dwarf2_record_block_ranges): New function.
(read_func_scope, read_lexical_block_scope): Call it.
* Makefile.in (SFILES): Add addrmap.c.
(addrmap_h): New header dependency variable.
(COMMON_OBS): Add addrmap.o.
(addrmap.o): New rule.l
(block.o, objfiles.o, buildsym.o): Depend on $(addrmap_h).
* block.c (blockvector_for_pc, blockvector_for_pc_sect): Return a
pointer to the block, not its index in the blockvector.
(block_for_pc_sect): Use the returned block, instead of looking it
up ourselves.
* block.h (blockvector_for_pc, blockvector_for_pc_sect): Update
declarations.
* breakpoint.c (resolve_sal_pc): Use returned block, instead of
looking it up ourselves.
* stack.c (print_frame_label_vars): Disable function, which
depends on the block's index.
* buildsym.c (finish_block): Return the block we've built.
* buildsym.h (finish_block): Update prototype.
* defs.h (CORE_ADDR_MAX): New constant.
2007-12-05 07:43:57 +08:00
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struct addrmap;
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2003-04-12 Andrew Cagney <cagney@redhat.com>
* gdbarch.sh: Add missing opaque declarations.
* gdbarch.h: Regnerate.
* symtab.h: Add missing opaque declarations.
* value.h, target.h, symfile.h, stabsread.h: Ditto.
* x86-64-tdep.h, xmodem.h, monitor.h, typeprint.h: Ditto.
* srec.h, solib-svr4.h, source.h, inferior.h: Ditto.
* ser-unix.h, serial.h, remote-utils.h, gdbcore.h: Ditto.
* ppc-tdep.h, ocd.h, mips-tdep.h, gdbtypes.h: Ditto.
* buildsym.h, builtin-regs.h, linespec.h, language.h: Ditto.
* i387-tdep.h, gdbthread.h, event-top.h, gdb.h: Ditto.
* dwarf2cfi.h, doublest.h, disasm.h, cp-abi.h: Ditto.
* cli-out.h, c-lang.h, ax-gdb.h, arch-utils.h: Ditto.
* ada-lang.h, config/nm-lynx.h, config/nm-linux.h: Ditto.
* config/sparc/tm-sp64.h, config/rs6000/tm-rs6000.h: Ditto.
* config/pa/tm-hppah.h, config/m68k/tm-delta68.h: Ditto.
* cli/cli-setshow.h, cli/cli-script.h: Ditto.
2003-04-13 01:41:26 +08:00
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1999-04-16 09:35:26 +08:00
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/* This module provides definitions used for creating and adding to
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the symbol table. These routines are called from various symbol-
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file-reading routines.
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They originated in dbxread.c of gdb-4.2, and were split out to
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make xcoffread.c more maintainable by sharing code.
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Variables declared in this file can be defined by #define-ing the
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name EXTERN to null. It is used to declare variables that are
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normally extern, but which get defined in a single module using
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this technique. */
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2003-02-19 David Carlton <carlton@math.stanford.edu>
* Makefile.in (SFILES): Add block.c.
(block_h): New.
(COMMON_OBS): Add block.o.
(block.o): New.
(x86-64-tdep.o): Add $(block_h).
(values.o, valops.o, tracepoint.o, symtab.o, symmisc.o, symfile.o)
(stack.o, printcmd.o, p-exp.tab.o, parse.o, objfiles.o)
(objc-exp.tab.o, objc-lang.o, nlmread.o, mips-tdep.o, mdebugread.o)
(m2-exp.tab.o, linespec.o, jv-lang.o, jv-exp.tab.o, infcmd.o)
(f-valprint.o, findvar.o, f-exp.tab.o, expprint.o, coffread.o)
(c-exp.tab.o, buildsym.o, breakpoint.o, blockframe.o, ax-gdb.o)
(alpha-tdep.o, ada-lang.o, ada-exp.tab.o, mi-cmd-stack.o): Ditto.
* value.h: Add opaque declaration for struct block.
* parser-defs.h, objc-lang.h, buildsym.h, breakpoint.h: Ditto.
* ada-lang.h: Ditto.
* x86-64-tdep.c: #include "block.h"
* values.c, valops.c, tracepoint.c, symtab.c, symmisc.c: Ditto.
* symfile.c, stack.c, printcmd.c, p-exp.y, parse.c: Ditto.
* objfiles.c, objc-exp.y, objc-lang.c, nlmread.c: Ditto.
* mips-tdep.c, mdebugread.c, m2-exp.y, linespec.c: Ditto.
* jv-lang.c, jv-exp.y, infcmd.c, f-valprint.c: Ditto.
* findvar.c, f-exp.y, expprint.c, coffread.c, c-exp.y: Ditto.
* buildsym.c, breakpoint.c, blockframe.c, ax-gdb.c: Ditto.
* alpha-tdep.c, ada-lang.c, ada-exp.y: Ditto.
* blockframe.c (blockvector_for_pc_sect): Move to "block.c".
(blockvector_for_pc, block_for_pc_sect, block_for_pc): Ditto.
* symtab.c (block_function): Ditto.
(contained_in): Ditto.
* frame.h: Move block_for_pc and block_for_pc_sect declarations to
block.h. Add opaque declaration for struct block.
* symtab.h: Move block_function and contained_in declarations to
block.h. Add opaque declarations for struct block, struct
blockvector.
(struct block): Move to block.h.
(struct blockvector): Ditto.
(BLOCK_START, BLOCK_END, BLOCK_FUNCTION, BLOCK_SUPERBLOCK)
(BLOCK_GCC_COMPILED, BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM)
(BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE)
(ALL_BLOCK_SYMBOLS, BLOCK_SHOULD_SORT, BLOCKVECTOR_NBLOCKS)
(BLOCKVECTOR_BLOCK, GLOBAL_BLOCK, STATIC_BLOCK, FIRST_LOCAL_BLOCK):
Ditto.
* block.c: New file.
* block.h: New file.
2003-02-19 David Carlton <carlton@math.stanford.edu>
* mi-cmd-stack.c: #include "block.h"
2003-02-20 08:01:07 +08:00
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struct block;
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1999-04-16 09:35:26 +08:00
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#ifndef EXTERN
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#define EXTERN extern
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#endif
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#define HASHSIZE 127 /* Size of things hashed via
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hashname() */
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/* Name of source file whose symbol data we are now processing. This
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2008-04-08 03:29:55 +08:00
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comes from a symbol of type N_SO for stabs. For Dwarf it comes from the
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DW_AT_name attribute of a DW_TAG_compile_unit DIE. */
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1999-04-16 09:35:26 +08:00
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EXTERN char *last_source_file;
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/* Core address of start of text of current source file. This too
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2008-04-08 03:29:55 +08:00
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comes from the N_SO symbol. For Dwarf it typically comes from the
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DW_AT_low_pc attribute of a DW_TAG_compile_unit DIE. */
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1999-04-16 09:35:26 +08:00
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EXTERN CORE_ADDR last_source_start_addr;
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/* The list of sub-source-files within the current individual
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compilation. Each file gets its own symtab with its own linetable
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and associated info, but they all share one blockvector. */
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struct subfile
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{
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struct subfile *next;
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char *name;
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char *dirname;
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struct linetable *line_vector;
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int line_vector_length;
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enum language language;
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2007-01-05 04:26:42 +08:00
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char *producer;
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1999-04-16 09:35:26 +08:00
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char *debugformat;
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2007-01-22 00:49:40 +08:00
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struct symtab *symtab;
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1999-04-16 09:35:26 +08:00
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};
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EXTERN struct subfile *current_subfile;
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/* Global variable which, when set, indicates that we are processing a
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.o file compiled with gcc */
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EXTERN unsigned char processing_gcc_compilation;
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/* When set, we are processing a .o file compiled by sun acc. This is
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misnamed; it refers to all stabs-in-elf implementations which use
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N_UNDF the way Sun does, including Solaris gcc. Hopefully all
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stabs-in-elf implementations ever invented will choose to be
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compatible. */
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EXTERN unsigned char processing_acc_compilation;
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/* Count symbols as they are processed, for error messages. */
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EXTERN unsigned int symnum;
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/* Record the symbols defined for each context in a list. We don't
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create a struct block for the context until we know how long to
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make it. */
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#define PENDINGSIZE 100
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struct pending
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{
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struct pending *next;
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int nsyms;
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struct symbol *symbol[PENDINGSIZE];
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};
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/* Here are the three lists that symbols are put on. */
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/* static at top level, and types */
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EXTERN struct pending *file_symbols;
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/* global functions and variables */
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EXTERN struct pending *global_symbols;
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/* everything local to lexical context */
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EXTERN struct pending *local_symbols;
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/* func params local to lexical context */
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EXTERN struct pending *param_symbols;
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2009-06-24 01:46:52 +08:00
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/* "using" directives local to lexical context. */
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EXTERN struct using_direct *using_directives;
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1999-04-16 09:35:26 +08:00
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/* Stack representing unclosed lexical contexts (that will become
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blocks, eventually). */
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struct context_stack
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{
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/* Outer locals at the time we entered */
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struct pending *locals;
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/* Pending func params at the time we entered */
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struct pending *params;
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2009-06-24 01:46:52 +08:00
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/* Pending using directives at the time we entered. */
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struct using_direct *using_directives;
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1999-04-16 09:35:26 +08:00
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/* Pointer into blocklist as of entry */
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struct pending_block *old_blocks;
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/* Name of function, if any, defining context */
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struct symbol *name;
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/* PC where this context starts */
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CORE_ADDR start_addr;
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/* Temp slot for exception handling. */
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CORE_ADDR end_addr;
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/* For error-checking matching push/pop */
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int depth;
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};
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EXTERN struct context_stack *context_stack;
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/* Index of first unused entry in context stack. */
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EXTERN int context_stack_depth;
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/* Currently allocated size of context stack. */
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EXTERN int context_stack_size;
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2002-11-09 04:05:10 +08:00
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/* Non-zero if the context stack is empty. */
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#define outermost_context_p() (context_stack_depth == 0)
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1999-04-16 09:35:26 +08:00
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/* Nonzero if within a function (so symbols should be local, if
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nothing says specifically). */
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EXTERN int within_function;
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/* List of blocks already made (lexical contexts already closed).
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This is used at the end to make the blockvector. */
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struct pending_block
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{
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struct pending_block *next;
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struct block *block;
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};
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/* Pointer to the head of a linked list of symbol blocks which have
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already been finalized (lexical contexts already closed) and which
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are just waiting to be built into a blockvector when finalizing the
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associated symtab. */
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EXTERN struct pending_block *pending_blocks;
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struct subfile_stack
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{
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struct subfile_stack *next;
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char *name;
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};
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EXTERN struct subfile_stack *subfile_stack;
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#define next_symbol_text(objfile) (*next_symbol_text_func)(objfile)
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/* Function to invoke get the next symbol. Return the symbol name. */
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EXTERN char *(*next_symbol_text_func) (struct objfile *);
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/* Vector of types defined so far, indexed by their type numbers.
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Used for both stabs and coff. (In newer sun systems, dbx uses a
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pair of numbers in parens, as in "(SUBFILENUM,NUMWITHINSUBFILE)".
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Then these numbers must be translated through the type_translations
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hash table to get the index into the type vector.) */
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EXTERN struct type **type_vector;
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/* Number of elements allocated for type_vector currently. */
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EXTERN int type_vector_length;
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/* Initial size of type vector. Is realloc'd larger if needed, and
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realloc'd down to the size actually used, when completed. */
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#define INITIAL_TYPE_VECTOR_LENGTH 160
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2000-02-19 06:15:46 +08:00
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extern void add_free_pendings (struct pending *list);
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1999-04-16 09:35:26 +08:00
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extern void add_symbol_to_list (struct symbol *symbol,
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struct pending **listhead);
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extern struct symbol *find_symbol_in_list (struct pending *list,
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char *name, int length);
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Support lexical blocks and function bodies that occupy
non-contiguous address ranges.
* addrmap.c, addrmap.h: New files.
* block.h (struct addrmap): New forward declaration.
(struct blockvector): New member, 'map'.
(BLOCKVECTOR_MAP): New accessor macro.
* block.c: #include "addrmap.h"
(blockvector_for_pc_sect): If the blockvector we've found has
an address map, use it instead of searching the blocks.
* buildsym.c: #include "addrmap.h"
(pending_addrmap_obstack, pending_addrmap_interesting): New static
variables.
(really_free_pendings): If we have a pending addrmap, free it too.
(record_block_range): New function.
(make_blockvector): If we have an interesting pending addrmap,
record it in the new blockvector.
(start_symtab, buildsym_init): Assert that there is no pending
addrmap now; we should have cleaned up any addrmaps we'd built
previously.
(end_symtab): If there is a pending addrmap left over that didn't
get included in the blockvector, free it.
* buildsym.h (struct addrmap): New forward declaration.
(record_block_range): New prototype.
* objfiles.c: #include "addrmap.h".
(objfile_relocate): Relocate the blockvector's address map, if
present.
* dwarf2read.c (dwarf2_record_block_ranges): New function.
(read_func_scope, read_lexical_block_scope): Call it.
* Makefile.in (SFILES): Add addrmap.c.
(addrmap_h): New header dependency variable.
(COMMON_OBS): Add addrmap.o.
(addrmap.o): New rule.l
(block.o, objfiles.o, buildsym.o): Depend on $(addrmap_h).
* block.c (blockvector_for_pc, blockvector_for_pc_sect): Return a
pointer to the block, not its index in the blockvector.
(block_for_pc_sect): Use the returned block, instead of looking it
up ourselves.
* block.h (blockvector_for_pc, blockvector_for_pc_sect): Update
declarations.
* breakpoint.c (resolve_sal_pc): Use returned block, instead of
looking it up ourselves.
* stack.c (print_frame_label_vars): Disable function, which
depends on the block's index.
* buildsym.c (finish_block): Return the block we've built.
* buildsym.h (finish_block): Update prototype.
* defs.h (CORE_ADDR_MAX): New constant.
2007-12-05 07:43:57 +08:00
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extern struct block *finish_block (struct symbol *symbol,
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struct pending **listhead,
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struct pending_block *old_blocks,
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CORE_ADDR start, CORE_ADDR end,
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struct objfile *objfile);
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extern void record_block_range (struct block *,
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CORE_ADDR start, CORE_ADDR end_inclusive);
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1999-04-16 09:35:26 +08:00
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2003-01-10 02:30:32 +08:00
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extern void really_free_pendings (void *dummy);
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1999-04-16 09:35:26 +08:00
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extern void start_subfile (char *name, char *dirname);
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extern void patch_subfile_names (struct subfile *subfile, char *name);
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extern void push_subfile (void);
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extern char *pop_subfile (void);
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extern struct symtab *end_symtab (CORE_ADDR end_addr,
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struct objfile *objfile, int section);
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/* Defined in stabsread.c. */
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extern void scan_file_globals (struct objfile *objfile);
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extern void buildsym_new_init (void);
|
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extern void buildsym_init (void);
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extern struct context_stack *push_context (int desc, CORE_ADDR valu);
|
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|
2002-11-19 03:14:10 +08:00
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|
|
extern struct context_stack *pop_context (void);
|
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|
1999-04-16 09:35:26 +08:00
|
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|
|
extern void record_line (struct subfile *subfile, int line, CORE_ADDR pc);
|
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|
extern void start_symtab (char *name, char *dirname, CORE_ADDR start_addr);
|
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|
|
extern int hashname (char *name);
|
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|
|
extern void free_pending_blocks (void);
|
|
|
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|
|
/* FIXME: Note that this is used only in buildsym.c and dstread.c,
|
|
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|
|
which should be fixed to not need direct access to
|
|
|
|
|
record_pending_block. */
|
|
|
|
|
|
|
|
|
|
extern void record_pending_block (struct objfile *objfile,
|
|
|
|
|
struct block *block,
|
|
|
|
|
struct pending_block *opblock);
|
|
|
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|
|
extern void record_debugformat (char *format);
|
|
|
|
|
|
2007-01-05 04:26:42 +08:00
|
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|
|
extern void record_producer (const char *producer);
|
|
|
|
|
|
1999-04-16 09:35:26 +08:00
|
|
|
|
extern void merge_symbol_lists (struct pending **srclist,
|
|
|
|
|
struct pending **targetlist);
|
|
|
|
|
|
2002-05-16 05:19:21 +08:00
|
|
|
|
/* The macro table for the compilation unit whose symbols we're
|
|
|
|
|
currently reading. All the symtabs for this CU will point to this. */
|
|
|
|
|
EXTERN struct macro_table *pending_macros;
|
|
|
|
|
|
1999-04-16 09:35:26 +08:00
|
|
|
|
#undef EXTERN
|
|
|
|
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|
|
#endif /* defined (BUILDSYM_H) */
|