94a72be708
In this commit:
commit d9b3de22f3
Date: Wed May 27 14:44:29 2015 -0700
Add struct to record dwarf line number state machine.
I believe an unintended change was made to how we store the DWARF line
table, the end of sequence markers between sequences of lines were
lost from the line table.
This commit fixes this small oversight and restores the end of
sequence markers.
Given that we've survived this long without noticing is clearly an
indication that this isn't that serious, however, a later patch that I
am developing would benefit from having the markers in place, so I'd
like to restore them.
Having the markers also means that the output of 'maintenance info
line-table' now more closely reflects the DWARF line table.
I've taken this opportunity to improve how 'maintenance info
line-table' displays the end of sequence markers - it now uses the END
keyword, rather than just printing an entry with line number 0. So we
see this:
INDEX LINE ADDRESS
0 12 0x00000000004003b0
1 17 0x00000000004003b0
2 18 0x00000000004003b0
3 END 0x00000000004003b7
4 5 0x00000000004004a0
5 6 0x00000000004004a0
6 END 0x00000000004004a7
Instead of what we would have seen, which was this:
INDEX LINE ADDRESS
0 12 0x00000000004003b0
1 17 0x00000000004003b0
2 18 0x00000000004003b0
3 0 0x00000000004003b7
4 5 0x00000000004004a0
5 6 0x00000000004004a0
6 0 0x00000000004004a7
I've added a small test that uses 'maintenance info line-table' to
ensure that we don't regress this again.
gdb/ChangeLog:
* dwarf2read.c (lnp_state_machine::record_line): Include
end_sequence parameter in debug print out. Record the line if we
are at an end_sequence marker even if it's not the start of a
statement.
* symmisc.c (maintenance_print_one_line_table): Print end of
sequence markers with 'END' not '0'.
gdb/testsuite/ChangeLog:
* gdb.base/maint.exp: Update line table parsing test.
* gdb.dwarf2/dw2-ranges-base.exp: Add new line table parsing test.
Change-Id: I002f872248db82a1d4fefdc6b51ff5dbf932d8a8
1102 lines
30 KiB
C
1102 lines
30 KiB
C
/* Do various things to symbol tables (other than lookup), for GDB.
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Copyright (C) 1986-2020 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 "symtab.h"
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#include "gdbtypes.h"
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#include "bfd.h"
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#include "filenames.h"
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#include "symfile.h"
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#include "objfiles.h"
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#include "breakpoint.h"
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#include "command.h"
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#include "gdb_obstack.h"
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#include "language.h"
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#include "bcache.h"
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#include "block.h"
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#include "gdb_regex.h"
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#include <sys/stat.h>
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#include "dictionary.h"
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#include "typeprint.h"
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#include "gdbcmd.h"
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#include "source.h"
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#include "readline/tilde.h"
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#include "psymtab.h"
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/* Unfortunately for debugging, stderr is usually a macro. This is painful
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when calling functions that take FILE *'s from the debugger.
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So we make a variable which has the same value and which is accessible when
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debugging GDB with itself. Because stdin et al need not be constants,
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we initialize them in the _initialize_symmisc function at the bottom
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of the file. */
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FILE *std_in;
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FILE *std_out;
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FILE *std_err;
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/* Prototypes for local functions */
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static int block_depth (const struct block *);
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static void print_symbol (struct gdbarch *gdbarch, struct symbol *symbol,
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int depth, ui_file *outfile);
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void
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print_symbol_bcache_statistics (void)
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{
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struct program_space *pspace;
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ALL_PSPACES (pspace)
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for (objfile *objfile : pspace->objfiles ())
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{
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QUIT;
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printf_filtered (_("Byte cache statistics for '%s':\n"),
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objfile_name (objfile));
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objfile->partial_symtabs->psymbol_cache.print_statistics
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("partial symbol cache");
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objfile->per_bfd->macro_cache.print_statistics
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("preprocessor macro cache");
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objfile->per_bfd->filename_cache.print_statistics ("file name cache");
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}
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}
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void
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print_objfile_statistics (void)
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{
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struct program_space *pspace;
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int i, linetables, blockvectors;
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ALL_PSPACES (pspace)
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for (objfile *objfile : pspace->objfiles ())
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{
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QUIT;
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printf_filtered (_("Statistics for '%s':\n"), objfile_name (objfile));
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if (OBJSTAT (objfile, n_stabs) > 0)
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printf_filtered (_(" Number of \"stab\" symbols read: %d\n"),
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OBJSTAT (objfile, n_stabs));
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if (objfile->per_bfd->n_minsyms > 0)
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printf_filtered (_(" Number of \"minimal\" symbols read: %d\n"),
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objfile->per_bfd->n_minsyms);
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if (OBJSTAT (objfile, n_psyms) > 0)
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printf_filtered (_(" Number of \"partial\" symbols read: %d\n"),
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OBJSTAT (objfile, n_psyms));
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if (OBJSTAT (objfile, n_syms) > 0)
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printf_filtered (_(" Number of \"full\" symbols read: %d\n"),
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OBJSTAT (objfile, n_syms));
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if (OBJSTAT (objfile, n_types) > 0)
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printf_filtered (_(" Number of \"types\" defined: %d\n"),
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OBJSTAT (objfile, n_types));
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if (objfile->sf)
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objfile->sf->qf->print_stats (objfile);
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i = linetables = 0;
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for (compunit_symtab *cu : objfile->compunits ())
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{
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for (symtab *s : compunit_filetabs (cu))
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{
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i++;
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if (SYMTAB_LINETABLE (s) != NULL)
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linetables++;
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}
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}
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blockvectors = std::distance (objfile->compunits ().begin (),
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objfile->compunits ().end ());
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printf_filtered (_(" Number of symbol tables: %d\n"), i);
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printf_filtered (_(" Number of symbol tables with line tables: %d\n"),
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linetables);
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printf_filtered (_(" Number of symbol tables with blockvectors: %d\n"),
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blockvectors);
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if (OBJSTAT (objfile, sz_strtab) > 0)
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printf_filtered (_(" Space used by string tables: %d\n"),
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OBJSTAT (objfile, sz_strtab));
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printf_filtered (_(" Total memory used for objfile obstack: %s\n"),
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pulongest (obstack_memory_used (&objfile
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->objfile_obstack)));
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printf_filtered (_(" Total memory used for BFD obstack: %s\n"),
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pulongest (obstack_memory_used (&objfile->per_bfd
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->storage_obstack)));
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printf_filtered
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(_(" Total memory used for psymbol cache: %d\n"),
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objfile->partial_symtabs->psymbol_cache.memory_used ());
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printf_filtered (_(" Total memory used for macro cache: %d\n"),
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objfile->per_bfd->macro_cache.memory_used ());
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printf_filtered (_(" Total memory used for file name cache: %d\n"),
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objfile->per_bfd->filename_cache.memory_used ());
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}
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}
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static void
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dump_objfile (struct objfile *objfile)
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{
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printf_filtered ("\nObject file %s: ", objfile_name (objfile));
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printf_filtered ("Objfile at ");
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gdb_print_host_address (objfile, gdb_stdout);
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printf_filtered (", bfd at ");
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gdb_print_host_address (objfile->obfd, gdb_stdout);
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printf_filtered (", %d minsyms\n\n",
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objfile->per_bfd->minimal_symbol_count);
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if (objfile->sf)
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objfile->sf->qf->dump (objfile);
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if (objfile->compunit_symtabs != NULL)
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{
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printf_filtered ("Symtabs:\n");
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for (compunit_symtab *cu : objfile->compunits ())
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{
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for (symtab *symtab : compunit_filetabs (cu))
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{
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printf_filtered ("%s at ",
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symtab_to_filename_for_display (symtab));
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gdb_print_host_address (symtab, gdb_stdout);
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printf_filtered (", ");
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if (SYMTAB_OBJFILE (symtab) != objfile)
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{
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printf_filtered ("NOT ON CHAIN! ");
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}
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wrap_here (" ");
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}
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}
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printf_filtered ("\n\n");
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}
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}
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/* Print minimal symbols from this objfile. */
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static void
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dump_msymbols (struct objfile *objfile, struct ui_file *outfile)
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{
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struct gdbarch *gdbarch = get_objfile_arch (objfile);
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int index;
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char ms_type;
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fprintf_filtered (outfile, "\nObject file %s:\n\n", objfile_name (objfile));
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if (objfile->per_bfd->minimal_symbol_count == 0)
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{
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fprintf_filtered (outfile, "No minimal symbols found.\n");
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return;
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}
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index = 0;
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for (minimal_symbol *msymbol : objfile->msymbols ())
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{
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struct obj_section *section = MSYMBOL_OBJ_SECTION (objfile, msymbol);
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switch (MSYMBOL_TYPE (msymbol))
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{
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case mst_unknown:
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ms_type = 'u';
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break;
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case mst_text:
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ms_type = 'T';
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break;
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case mst_text_gnu_ifunc:
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case mst_data_gnu_ifunc:
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ms_type = 'i';
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break;
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case mst_solib_trampoline:
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ms_type = 'S';
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break;
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case mst_data:
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ms_type = 'D';
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break;
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case mst_bss:
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ms_type = 'B';
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break;
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case mst_abs:
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ms_type = 'A';
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break;
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case mst_file_text:
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ms_type = 't';
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break;
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case mst_file_data:
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ms_type = 'd';
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break;
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case mst_file_bss:
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ms_type = 'b';
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break;
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default:
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ms_type = '?';
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break;
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}
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fprintf_filtered (outfile, "[%2d] %c ", index, ms_type);
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/* Use the relocated address as shown in the symbol here -- do
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not try to respect copy relocations. */
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CORE_ADDR addr = (msymbol->value.address
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+ objfile->section_offsets[msymbol->section]);
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fputs_filtered (paddress (gdbarch, addr), outfile);
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fprintf_filtered (outfile, " %s", msymbol->linkage_name ());
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if (section)
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{
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if (section->the_bfd_section != NULL)
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fprintf_filtered (outfile, " section %s",
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bfd_section_name (section->the_bfd_section));
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else
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fprintf_filtered (outfile, " spurious section %ld",
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(long) (section - objfile->sections));
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}
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if (msymbol->demangled_name () != NULL)
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{
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fprintf_filtered (outfile, " %s", msymbol->demangled_name ());
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}
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if (msymbol->filename)
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fprintf_filtered (outfile, " %s", msymbol->filename);
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fputs_filtered ("\n", outfile);
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index++;
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}
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if (objfile->per_bfd->minimal_symbol_count != index)
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{
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warning (_("internal error: minimal symbol count %d != %d"),
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objfile->per_bfd->minimal_symbol_count, index);
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}
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fprintf_filtered (outfile, "\n");
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}
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static void
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dump_symtab_1 (struct symtab *symtab, struct ui_file *outfile)
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{
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struct objfile *objfile = SYMTAB_OBJFILE (symtab);
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struct gdbarch *gdbarch = get_objfile_arch (objfile);
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int i;
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struct mdict_iterator miter;
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int len;
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struct linetable *l;
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const struct blockvector *bv;
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struct symbol *sym;
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const struct block *b;
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int depth;
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fprintf_filtered (outfile, "\nSymtab for file %s\n",
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symtab_to_filename_for_display (symtab));
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if (SYMTAB_DIRNAME (symtab) != NULL)
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fprintf_filtered (outfile, "Compilation directory is %s\n",
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SYMTAB_DIRNAME (symtab));
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fprintf_filtered (outfile, "Read from object file %s (",
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objfile_name (objfile));
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gdb_print_host_address (objfile, outfile);
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fprintf_filtered (outfile, ")\n");
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fprintf_filtered (outfile, "Language: %s\n",
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language_str (symtab->language));
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/* First print the line table. */
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l = SYMTAB_LINETABLE (symtab);
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if (l)
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{
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fprintf_filtered (outfile, "\nLine table:\n\n");
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len = l->nitems;
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for (i = 0; i < len; i++)
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{
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fprintf_filtered (outfile, " line %d at ", l->item[i].line);
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fputs_filtered (paddress (gdbarch, l->item[i].pc), outfile);
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fprintf_filtered (outfile, "\n");
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}
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}
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/* Now print the block info, but only for compunit symtabs since we will
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print lots of duplicate info otherwise. */
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if (symtab == COMPUNIT_FILETABS (SYMTAB_COMPUNIT (symtab)))
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{
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fprintf_filtered (outfile, "\nBlockvector:\n\n");
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bv = SYMTAB_BLOCKVECTOR (symtab);
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len = BLOCKVECTOR_NBLOCKS (bv);
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for (i = 0; i < len; i++)
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{
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b = BLOCKVECTOR_BLOCK (bv, i);
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depth = block_depth (b) * 2;
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print_spaces (depth, outfile);
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fprintf_filtered (outfile, "block #%03d, object at ", i);
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gdb_print_host_address (b, outfile);
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if (BLOCK_SUPERBLOCK (b))
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{
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fprintf_filtered (outfile, " under ");
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gdb_print_host_address (BLOCK_SUPERBLOCK (b), outfile);
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}
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/* drow/2002-07-10: We could save the total symbols count
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even if we're using a hashtable, but nothing else but this message
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wants it. */
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fprintf_filtered (outfile, ", %d syms/buckets in ",
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mdict_size (BLOCK_MULTIDICT (b)));
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fputs_filtered (paddress (gdbarch, BLOCK_START (b)), outfile);
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fprintf_filtered (outfile, "..");
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fputs_filtered (paddress (gdbarch, BLOCK_END (b)), outfile);
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if (BLOCK_FUNCTION (b))
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{
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fprintf_filtered (outfile, ", function %s",
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BLOCK_FUNCTION (b)->linkage_name ());
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if (BLOCK_FUNCTION (b)->demangled_name () != NULL)
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{
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fprintf_filtered (outfile, ", %s",
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BLOCK_FUNCTION (b)->demangled_name ());
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}
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}
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fprintf_filtered (outfile, "\n");
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/* Now print each symbol in this block (in no particular order, if
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we're using a hashtable). Note that we only want this
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block, not any blocks from included symtabs. */
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ALL_DICT_SYMBOLS (BLOCK_MULTIDICT (b), miter, sym)
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{
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try
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{
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print_symbol (gdbarch, sym, depth + 1, outfile);
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}
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catch (const gdb_exception_error &ex)
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{
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exception_fprintf (gdb_stderr, ex,
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"Error printing symbol:\n");
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}
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}
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}
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fprintf_filtered (outfile, "\n");
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}
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else
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{
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const char *compunit_filename
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= symtab_to_filename_for_display (COMPUNIT_FILETABS (SYMTAB_COMPUNIT (symtab)));
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fprintf_filtered (outfile,
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"\nBlockvector same as owning compunit: %s\n\n",
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compunit_filename);
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}
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}
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static void
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dump_symtab (struct symtab *symtab, struct ui_file *outfile)
|
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{
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/* Set the current language to the language of the symtab we're dumping
|
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because certain routines used during dump_symtab() use the current
|
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language to print an image of the symbol. We'll restore it later.
|
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But use only real languages, not placeholders. */
|
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if (symtab->language != language_unknown
|
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&& symtab->language != language_auto)
|
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{
|
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scoped_restore_current_language save_lang;
|
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set_language (symtab->language);
|
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dump_symtab_1 (symtab, outfile);
|
||
}
|
||
else
|
||
dump_symtab_1 (symtab, outfile);
|
||
}
|
||
|
||
static void
|
||
maintenance_print_symbols (const char *args, int from_tty)
|
||
{
|
||
struct ui_file *outfile = gdb_stdout;
|
||
char *address_arg = NULL, *source_arg = NULL, *objfile_arg = NULL;
|
||
int i, outfile_idx;
|
||
|
||
dont_repeat ();
|
||
|
||
gdb_argv argv (args);
|
||
|
||
for (i = 0; argv != NULL && argv[i] != NULL; ++i)
|
||
{
|
||
if (strcmp (argv[i], "-pc") == 0)
|
||
{
|
||
if (argv[i + 1] == NULL)
|
||
error (_("Missing pc value"));
|
||
address_arg = argv[++i];
|
||
}
|
||
else if (strcmp (argv[i], "-source") == 0)
|
||
{
|
||
if (argv[i + 1] == NULL)
|
||
error (_("Missing source file"));
|
||
source_arg = argv[++i];
|
||
}
|
||
else if (strcmp (argv[i], "-objfile") == 0)
|
||
{
|
||
if (argv[i + 1] == NULL)
|
||
error (_("Missing objfile name"));
|
||
objfile_arg = argv[++i];
|
||
}
|
||
else if (strcmp (argv[i], "--") == 0)
|
||
{
|
||
/* End of options. */
|
||
++i;
|
||
break;
|
||
}
|
||
else if (argv[i][0] == '-')
|
||
{
|
||
/* Future proofing: Don't allow OUTFILE to begin with "-". */
|
||
error (_("Unknown option: %s"), argv[i]);
|
||
}
|
||
else
|
||
break;
|
||
}
|
||
outfile_idx = i;
|
||
|
||
if (address_arg != NULL && source_arg != NULL)
|
||
error (_("Must specify at most one of -pc and -source"));
|
||
|
||
stdio_file arg_outfile;
|
||
|
||
if (argv != NULL && argv[outfile_idx] != NULL)
|
||
{
|
||
if (argv[outfile_idx + 1] != NULL)
|
||
error (_("Junk at end of command"));
|
||
gdb::unique_xmalloc_ptr<char> outfile_name
|
||
(tilde_expand (argv[outfile_idx]));
|
||
if (!arg_outfile.open (outfile_name.get (), FOPEN_WT))
|
||
perror_with_name (outfile_name.get ());
|
||
outfile = &arg_outfile;
|
||
}
|
||
|
||
if (address_arg != NULL)
|
||
{
|
||
CORE_ADDR pc = parse_and_eval_address (address_arg);
|
||
struct symtab *s = find_pc_line_symtab (pc);
|
||
|
||
if (s == NULL)
|
||
error (_("No symtab for address: %s"), address_arg);
|
||
dump_symtab (s, outfile);
|
||
}
|
||
else
|
||
{
|
||
int found = 0;
|
||
|
||
for (objfile *objfile : current_program_space->objfiles ())
|
||
{
|
||
int print_for_objfile = 1;
|
||
|
||
if (objfile_arg != NULL)
|
||
print_for_objfile
|
||
= compare_filenames_for_search (objfile_name (objfile),
|
||
objfile_arg);
|
||
if (!print_for_objfile)
|
||
continue;
|
||
|
||
for (compunit_symtab *cu : objfile->compunits ())
|
||
{
|
||
for (symtab *s : compunit_filetabs (cu))
|
||
{
|
||
int print_for_source = 0;
|
||
|
||
QUIT;
|
||
if (source_arg != NULL)
|
||
{
|
||
print_for_source
|
||
= compare_filenames_for_search
|
||
(symtab_to_filename_for_display (s), source_arg);
|
||
found = 1;
|
||
}
|
||
if (source_arg == NULL
|
||
|| print_for_source)
|
||
dump_symtab (s, outfile);
|
||
}
|
||
}
|
||
}
|
||
|
||
if (source_arg != NULL && !found)
|
||
error (_("No symtab for source file: %s"), source_arg);
|
||
}
|
||
}
|
||
|
||
/* Print symbol SYMBOL on OUTFILE. DEPTH says how far to indent. */
|
||
|
||
static void
|
||
print_symbol (struct gdbarch *gdbarch, struct symbol *symbol,
|
||
int depth, ui_file *outfile)
|
||
{
|
||
struct obj_section *section;
|
||
|
||
if (SYMBOL_OBJFILE_OWNED (symbol))
|
||
section = SYMBOL_OBJ_SECTION (symbol_objfile (symbol), symbol);
|
||
else
|
||
section = NULL;
|
||
|
||
print_spaces (depth, outfile);
|
||
if (SYMBOL_DOMAIN (symbol) == LABEL_DOMAIN)
|
||
{
|
||
fprintf_filtered (outfile, "label %s at ", symbol->print_name ());
|
||
fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (symbol)),
|
||
outfile);
|
||
if (section)
|
||
fprintf_filtered (outfile, " section %s\n",
|
||
bfd_section_name (section->the_bfd_section));
|
||
else
|
||
fprintf_filtered (outfile, "\n");
|
||
return;
|
||
}
|
||
|
||
if (SYMBOL_DOMAIN (symbol) == STRUCT_DOMAIN)
|
||
{
|
||
if (TYPE_NAME (SYMBOL_TYPE (symbol)))
|
||
{
|
||
LA_PRINT_TYPE (SYMBOL_TYPE (symbol), "", outfile, 1, depth,
|
||
&type_print_raw_options);
|
||
}
|
||
else
|
||
{
|
||
fprintf_filtered (outfile, "%s %s = ",
|
||
(TYPE_CODE (SYMBOL_TYPE (symbol)) == TYPE_CODE_ENUM
|
||
? "enum"
|
||
: (TYPE_CODE (SYMBOL_TYPE (symbol)) == TYPE_CODE_STRUCT
|
||
? "struct" : "union")),
|
||
symbol->linkage_name ());
|
||
LA_PRINT_TYPE (SYMBOL_TYPE (symbol), "", outfile, 1, depth,
|
||
&type_print_raw_options);
|
||
}
|
||
fprintf_filtered (outfile, ";\n");
|
||
}
|
||
else
|
||
{
|
||
if (SYMBOL_CLASS (symbol) == LOC_TYPEDEF)
|
||
fprintf_filtered (outfile, "typedef ");
|
||
if (SYMBOL_TYPE (symbol))
|
||
{
|
||
/* Print details of types, except for enums where it's clutter. */
|
||
LA_PRINT_TYPE (SYMBOL_TYPE (symbol), symbol->print_name (),
|
||
outfile,
|
||
TYPE_CODE (SYMBOL_TYPE (symbol)) != TYPE_CODE_ENUM,
|
||
depth,
|
||
&type_print_raw_options);
|
||
fprintf_filtered (outfile, "; ");
|
||
}
|
||
else
|
||
fprintf_filtered (outfile, "%s ", symbol->print_name ());
|
||
|
||
switch (SYMBOL_CLASS (symbol))
|
||
{
|
||
case LOC_CONST:
|
||
fprintf_filtered (outfile, "const %s (%s)",
|
||
plongest (SYMBOL_VALUE (symbol)),
|
||
hex_string (SYMBOL_VALUE (symbol)));
|
||
break;
|
||
|
||
case LOC_CONST_BYTES:
|
||
{
|
||
unsigned i;
|
||
struct type *type = check_typedef (SYMBOL_TYPE (symbol));
|
||
|
||
fprintf_filtered (outfile, "const %s hex bytes:",
|
||
pulongest (TYPE_LENGTH (type)));
|
||
for (i = 0; i < TYPE_LENGTH (type); i++)
|
||
fprintf_filtered (outfile, " %02x",
|
||
(unsigned) SYMBOL_VALUE_BYTES (symbol)[i]);
|
||
}
|
||
break;
|
||
|
||
case LOC_STATIC:
|
||
fprintf_filtered (outfile, "static at ");
|
||
fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (symbol)),
|
||
outfile);
|
||
if (section)
|
||
fprintf_filtered (outfile, " section %s",
|
||
bfd_section_name (section->the_bfd_section));
|
||
break;
|
||
|
||
case LOC_REGISTER:
|
||
if (SYMBOL_IS_ARGUMENT (symbol))
|
||
fprintf_filtered (outfile, "parameter register %s",
|
||
plongest (SYMBOL_VALUE (symbol)));
|
||
else
|
||
fprintf_filtered (outfile, "register %s",
|
||
plongest (SYMBOL_VALUE (symbol)));
|
||
break;
|
||
|
||
case LOC_ARG:
|
||
fprintf_filtered (outfile, "arg at offset %s",
|
||
hex_string (SYMBOL_VALUE (symbol)));
|
||
break;
|
||
|
||
case LOC_REF_ARG:
|
||
fprintf_filtered (outfile, "reference arg at %s",
|
||
hex_string (SYMBOL_VALUE (symbol)));
|
||
break;
|
||
|
||
case LOC_REGPARM_ADDR:
|
||
fprintf_filtered (outfile, "address parameter register %s",
|
||
plongest (SYMBOL_VALUE (symbol)));
|
||
break;
|
||
|
||
case LOC_LOCAL:
|
||
fprintf_filtered (outfile, "local at offset %s",
|
||
hex_string (SYMBOL_VALUE (symbol)));
|
||
break;
|
||
|
||
case LOC_TYPEDEF:
|
||
break;
|
||
|
||
case LOC_LABEL:
|
||
fprintf_filtered (outfile, "label at ");
|
||
fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (symbol)),
|
||
outfile);
|
||
if (section)
|
||
fprintf_filtered (outfile, " section %s",
|
||
bfd_section_name (section->the_bfd_section));
|
||
break;
|
||
|
||
case LOC_BLOCK:
|
||
fprintf_filtered (outfile, "block object ");
|
||
gdb_print_host_address (SYMBOL_BLOCK_VALUE (symbol), outfile);
|
||
fprintf_filtered (outfile, ", ");
|
||
fputs_filtered (paddress (gdbarch,
|
||
BLOCK_START (SYMBOL_BLOCK_VALUE (symbol))),
|
||
outfile);
|
||
fprintf_filtered (outfile, "..");
|
||
fputs_filtered (paddress (gdbarch,
|
||
BLOCK_END (SYMBOL_BLOCK_VALUE (symbol))),
|
||
outfile);
|
||
if (section)
|
||
fprintf_filtered (outfile, " section %s",
|
||
bfd_section_name (section->the_bfd_section));
|
||
break;
|
||
|
||
case LOC_COMPUTED:
|
||
fprintf_filtered (outfile, "computed at runtime");
|
||
break;
|
||
|
||
case LOC_UNRESOLVED:
|
||
fprintf_filtered (outfile, "unresolved");
|
||
break;
|
||
|
||
case LOC_OPTIMIZED_OUT:
|
||
fprintf_filtered (outfile, "optimized out");
|
||
break;
|
||
|
||
default:
|
||
fprintf_filtered (outfile, "botched symbol class %x",
|
||
SYMBOL_CLASS (symbol));
|
||
break;
|
||
}
|
||
}
|
||
fprintf_filtered (outfile, "\n");
|
||
}
|
||
|
||
static void
|
||
maintenance_print_msymbols (const char *args, int from_tty)
|
||
{
|
||
struct ui_file *outfile = gdb_stdout;
|
||
char *objfile_arg = NULL;
|
||
int i, outfile_idx;
|
||
|
||
dont_repeat ();
|
||
|
||
gdb_argv argv (args);
|
||
|
||
for (i = 0; argv != NULL && argv[i] != NULL; ++i)
|
||
{
|
||
if (strcmp (argv[i], "-objfile") == 0)
|
||
{
|
||
if (argv[i + 1] == NULL)
|
||
error (_("Missing objfile name"));
|
||
objfile_arg = argv[++i];
|
||
}
|
||
else if (strcmp (argv[i], "--") == 0)
|
||
{
|
||
/* End of options. */
|
||
++i;
|
||
break;
|
||
}
|
||
else if (argv[i][0] == '-')
|
||
{
|
||
/* Future proofing: Don't allow OUTFILE to begin with "-". */
|
||
error (_("Unknown option: %s"), argv[i]);
|
||
}
|
||
else
|
||
break;
|
||
}
|
||
outfile_idx = i;
|
||
|
||
stdio_file arg_outfile;
|
||
|
||
if (argv != NULL && argv[outfile_idx] != NULL)
|
||
{
|
||
if (argv[outfile_idx + 1] != NULL)
|
||
error (_("Junk at end of command"));
|
||
gdb::unique_xmalloc_ptr<char> outfile_name
|
||
(tilde_expand (argv[outfile_idx]));
|
||
if (!arg_outfile.open (outfile_name.get (), FOPEN_WT))
|
||
perror_with_name (outfile_name.get ());
|
||
outfile = &arg_outfile;
|
||
}
|
||
|
||
for (objfile *objfile : current_program_space->objfiles ())
|
||
{
|
||
QUIT;
|
||
if (objfile_arg == NULL
|
||
|| compare_filenames_for_search (objfile_name (objfile), objfile_arg))
|
||
dump_msymbols (objfile, outfile);
|
||
}
|
||
}
|
||
|
||
static void
|
||
maintenance_print_objfiles (const char *regexp, int from_tty)
|
||
{
|
||
struct program_space *pspace;
|
||
|
||
dont_repeat ();
|
||
|
||
if (regexp)
|
||
re_comp (regexp);
|
||
|
||
ALL_PSPACES (pspace)
|
||
for (objfile *objfile : pspace->objfiles ())
|
||
{
|
||
QUIT;
|
||
if (! regexp
|
||
|| re_exec (objfile_name (objfile)))
|
||
dump_objfile (objfile);
|
||
}
|
||
}
|
||
|
||
/* List all the symbol tables whose names match REGEXP (optional). */
|
||
|
||
static void
|
||
maintenance_info_symtabs (const char *regexp, int from_tty)
|
||
{
|
||
struct program_space *pspace;
|
||
|
||
dont_repeat ();
|
||
|
||
if (regexp)
|
||
re_comp (regexp);
|
||
|
||
ALL_PSPACES (pspace)
|
||
for (objfile *objfile : pspace->objfiles ())
|
||
{
|
||
/* We don't want to print anything for this objfile until we
|
||
actually find a symtab whose name matches. */
|
||
int printed_objfile_start = 0;
|
||
|
||
for (compunit_symtab *cust : objfile->compunits ())
|
||
{
|
||
int printed_compunit_symtab_start = 0;
|
||
|
||
for (symtab *symtab : compunit_filetabs (cust))
|
||
{
|
||
QUIT;
|
||
|
||
if (! regexp
|
||
|| re_exec (symtab_to_filename_for_display (symtab)))
|
||
{
|
||
if (! printed_objfile_start)
|
||
{
|
||
printf_filtered ("{ objfile %s ", objfile_name (objfile));
|
||
wrap_here (" ");
|
||
printf_filtered ("((struct objfile *) %s)\n",
|
||
host_address_to_string (objfile));
|
||
printed_objfile_start = 1;
|
||
}
|
||
if (! printed_compunit_symtab_start)
|
||
{
|
||
printf_filtered (" { ((struct compunit_symtab *) %s)\n",
|
||
host_address_to_string (cust));
|
||
printf_filtered (" debugformat %s\n",
|
||
COMPUNIT_DEBUGFORMAT (cust));
|
||
printf_filtered (" producer %s\n",
|
||
COMPUNIT_PRODUCER (cust) != NULL
|
||
? COMPUNIT_PRODUCER (cust)
|
||
: "(null)");
|
||
printf_filtered (" dirname %s\n",
|
||
COMPUNIT_DIRNAME (cust) != NULL
|
||
? COMPUNIT_DIRNAME (cust)
|
||
: "(null)");
|
||
printf_filtered (" blockvector"
|
||
" ((struct blockvector *) %s)\n",
|
||
host_address_to_string
|
||
(COMPUNIT_BLOCKVECTOR (cust)));
|
||
printed_compunit_symtab_start = 1;
|
||
}
|
||
|
||
printf_filtered ("\t{ symtab %s ",
|
||
symtab_to_filename_for_display (symtab));
|
||
wrap_here (" ");
|
||
printf_filtered ("((struct symtab *) %s)\n",
|
||
host_address_to_string (symtab));
|
||
printf_filtered ("\t fullname %s\n",
|
||
symtab->fullname != NULL
|
||
? symtab->fullname
|
||
: "(null)");
|
||
printf_filtered ("\t "
|
||
"linetable ((struct linetable *) %s)\n",
|
||
host_address_to_string (symtab->linetable));
|
||
printf_filtered ("\t}\n");
|
||
}
|
||
}
|
||
|
||
if (printed_compunit_symtab_start)
|
||
printf_filtered (" }\n");
|
||
}
|
||
|
||
if (printed_objfile_start)
|
||
printf_filtered ("}\n");
|
||
}
|
||
}
|
||
|
||
/* Check consistency of symtabs.
|
||
An example of what this checks for is NULL blockvectors.
|
||
They can happen if there's a bug during debug info reading.
|
||
GDB assumes they are always non-NULL.
|
||
|
||
Note: This does not check for psymtab vs symtab consistency.
|
||
Use "maint check-psymtabs" for that. */
|
||
|
||
static void
|
||
maintenance_check_symtabs (const char *ignore, int from_tty)
|
||
{
|
||
struct program_space *pspace;
|
||
|
||
ALL_PSPACES (pspace)
|
||
for (objfile *objfile : pspace->objfiles ())
|
||
{
|
||
/* We don't want to print anything for this objfile until we
|
||
actually find something worth printing. */
|
||
int printed_objfile_start = 0;
|
||
|
||
for (compunit_symtab *cust : objfile->compunits ())
|
||
{
|
||
int found_something = 0;
|
||
struct symtab *symtab = compunit_primary_filetab (cust);
|
||
|
||
QUIT;
|
||
|
||
if (COMPUNIT_BLOCKVECTOR (cust) == NULL)
|
||
found_something = 1;
|
||
/* Add more checks here. */
|
||
|
||
if (found_something)
|
||
{
|
||
if (! printed_objfile_start)
|
||
{
|
||
printf_filtered ("{ objfile %s ", objfile_name (objfile));
|
||
wrap_here (" ");
|
||
printf_filtered ("((struct objfile *) %s)\n",
|
||
host_address_to_string (objfile));
|
||
printed_objfile_start = 1;
|
||
}
|
||
printf_filtered (" { symtab %s\n",
|
||
symtab_to_filename_for_display (symtab));
|
||
if (COMPUNIT_BLOCKVECTOR (cust) == NULL)
|
||
printf_filtered (" NULL blockvector\n");
|
||
printf_filtered (" }\n");
|
||
}
|
||
}
|
||
|
||
if (printed_objfile_start)
|
||
printf_filtered ("}\n");
|
||
}
|
||
}
|
||
|
||
/* Expand all symbol tables whose name matches an optional regexp. */
|
||
|
||
static void
|
||
maintenance_expand_symtabs (const char *args, int from_tty)
|
||
{
|
||
struct program_space *pspace;
|
||
char *regexp = NULL;
|
||
|
||
/* We use buildargv here so that we handle spaces in the regexp
|
||
in a way that allows adding more arguments later. */
|
||
gdb_argv argv (args);
|
||
|
||
if (argv != NULL)
|
||
{
|
||
if (argv[0] != NULL)
|
||
{
|
||
regexp = argv[0];
|
||
if (argv[1] != NULL)
|
||
error (_("Extra arguments after regexp."));
|
||
}
|
||
}
|
||
|
||
if (regexp)
|
||
re_comp (regexp);
|
||
|
||
ALL_PSPACES (pspace)
|
||
for (objfile *objfile : pspace->objfiles ())
|
||
{
|
||
if (objfile->sf)
|
||
{
|
||
objfile->sf->qf->expand_symtabs_matching
|
||
(objfile,
|
||
[&] (const char *filename, bool basenames)
|
||
{
|
||
/* KISS: Only apply the regexp to the complete file name. */
|
||
return (!basenames
|
||
&& (regexp == NULL || re_exec (filename)));
|
||
},
|
||
lookup_name_info::match_any (),
|
||
[] (const char *symname)
|
||
{
|
||
/* Since we're not searching on symbols, just return true. */
|
||
return true;
|
||
},
|
||
NULL,
|
||
ALL_DOMAIN);
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
/* Return the nexting depth of a block within other blocks in its symtab. */
|
||
|
||
static int
|
||
block_depth (const struct block *block)
|
||
{
|
||
int i = 0;
|
||
|
||
while ((block = BLOCK_SUPERBLOCK (block)) != NULL)
|
||
{
|
||
i++;
|
||
}
|
||
return i;
|
||
}
|
||
|
||
|
||
/* Used by MAINTENANCE_INFO_LINE_TABLES to print the information about a
|
||
single line table. */
|
||
|
||
static int
|
||
maintenance_print_one_line_table (struct symtab *symtab, void *data)
|
||
{
|
||
struct linetable *linetable;
|
||
struct objfile *objfile;
|
||
|
||
objfile = symtab->compunit_symtab->objfile;
|
||
printf_filtered (_("objfile: %s ((struct objfile *) %s)\n"),
|
||
objfile_name (objfile),
|
||
host_address_to_string (objfile));
|
||
printf_filtered (_("compunit_symtab: ((struct compunit_symtab *) %s)\n"),
|
||
host_address_to_string (symtab->compunit_symtab));
|
||
printf_filtered (_("symtab: %s ((struct symtab *) %s)\n"),
|
||
symtab_to_fullname (symtab),
|
||
host_address_to_string (symtab));
|
||
linetable = SYMTAB_LINETABLE (symtab);
|
||
printf_filtered (_("linetable: ((struct linetable *) %s):\n"),
|
||
host_address_to_string (linetable));
|
||
|
||
if (linetable == NULL)
|
||
printf_filtered (_("No line table.\n"));
|
||
else if (linetable->nitems <= 0)
|
||
printf_filtered (_("Line table has no lines.\n"));
|
||
else
|
||
{
|
||
int i;
|
||
|
||
/* Leave space for 6 digits of index and line number. After that the
|
||
tables will just not format as well. */
|
||
printf_filtered (_("%-6s %6s %s\n"),
|
||
_("INDEX"), _("LINE"), _("ADDRESS"));
|
||
|
||
for (i = 0; i < linetable->nitems; ++i)
|
||
{
|
||
struct linetable_entry *item;
|
||
|
||
item = &linetable->item [i];
|
||
printf_filtered ("%-6d ", i);
|
||
if (item->line > 0)
|
||
printf_filtered ("%6d ", item->line);
|
||
else
|
||
printf_filtered ("%6s ", _("END"));
|
||
printf_filtered ("%s\n", core_addr_to_string (item->pc));
|
||
}
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
/* Implement the 'maint info line-table' command. */
|
||
|
||
static void
|
||
maintenance_info_line_tables (const char *regexp, int from_tty)
|
||
{
|
||
struct program_space *pspace;
|
||
|
||
dont_repeat ();
|
||
|
||
if (regexp != NULL)
|
||
re_comp (regexp);
|
||
|
||
ALL_PSPACES (pspace)
|
||
for (objfile *objfile : pspace->objfiles ())
|
||
{
|
||
for (compunit_symtab *cust : objfile->compunits ())
|
||
{
|
||
for (symtab *symtab : compunit_filetabs (cust))
|
||
{
|
||
QUIT;
|
||
|
||
if (regexp == NULL
|
||
|| re_exec (symtab_to_filename_for_display (symtab)))
|
||
maintenance_print_one_line_table (symtab, NULL);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
|
||
/* Do early runtime initializations. */
|
||
|
||
void _initialize_symmisc ();
|
||
void
|
||
_initialize_symmisc ()
|
||
{
|
||
std_in = stdin;
|
||
std_out = stdout;
|
||
std_err = stderr;
|
||
|
||
add_cmd ("symbols", class_maintenance, maintenance_print_symbols, _("\
|
||
Print dump of current symbol definitions.\n\
|
||
Usage: mt print symbols [-pc ADDRESS] [--] [OUTFILE]\n\
|
||
mt print symbols [-objfile OBJFILE] [-source SOURCE] [--] [OUTFILE]\n\
|
||
Entries in the full symbol table are dumped to file OUTFILE,\n\
|
||
or the terminal if OUTFILE is unspecified.\n\
|
||
If ADDRESS is provided, dump only the file for that address.\n\
|
||
If SOURCE is provided, dump only that file's symbols.\n\
|
||
If OBJFILE is provided, dump only that file's minimal symbols."),
|
||
&maintenanceprintlist);
|
||
|
||
add_cmd ("msymbols", class_maintenance, maintenance_print_msymbols, _("\
|
||
Print dump of current minimal symbol definitions.\n\
|
||
Usage: mt print msymbols [-objfile OBJFILE] [--] [OUTFILE]\n\
|
||
Entries in the minimal symbol table are dumped to file OUTFILE,\n\
|
||
or the terminal if OUTFILE is unspecified.\n\
|
||
If OBJFILE is provided, dump only that file's minimal symbols."),
|
||
&maintenanceprintlist);
|
||
|
||
add_cmd ("objfiles", class_maintenance, maintenance_print_objfiles,
|
||
_("Print dump of current object file definitions.\n\
|
||
With an argument REGEXP, list the object files with matching names."),
|
||
&maintenanceprintlist);
|
||
|
||
add_cmd ("symtabs", class_maintenance, maintenance_info_symtabs, _("\
|
||
List the full symbol tables for all object files.\n\
|
||
This does not include information about individual symbols, blocks, or\n\
|
||
linetables --- just the symbol table structures themselves.\n\
|
||
With an argument REGEXP, list the symbol tables with matching names."),
|
||
&maintenanceinfolist);
|
||
|
||
add_cmd ("line-table", class_maintenance, maintenance_info_line_tables, _("\
|
||
List the contents of all line tables, from all symbol tables.\n\
|
||
With an argument REGEXP, list just the line tables for the symbol\n\
|
||
tables with matching names."),
|
||
&maintenanceinfolist);
|
||
|
||
add_cmd ("check-symtabs", class_maintenance, maintenance_check_symtabs,
|
||
_("\
|
||
Check consistency of currently expanded symtabs."),
|
||
&maintenancelist);
|
||
|
||
add_cmd ("expand-symtabs", class_maintenance, maintenance_expand_symtabs,
|
||
_("Expand symbol tables.\n\
|
||
With an argument REGEXP, only expand the symbol tables with matching names."),
|
||
&maintenancelist);
|
||
}
|