1991-11-12 23:24:56 +08:00
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/* Read AIXcoff symbol tables and convert to internal format, for GDB.
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Copyright (C) 1986-1991 Free Software Foundation, Inc.
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Derived from coffread.c, dbxread.c, and a lot of hacking.
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Contributed by IBM Corporation.
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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 2 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, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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1991-11-23 04:44:50 +08:00
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#include <stdio.h>
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1991-11-12 23:24:56 +08:00
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#include "defs.h"
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#include "bfd.h"
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/* AIX COFF names have a preceeding dot `.' */
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#define NAMES_HAVE_DOT 1
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#include <sys/types.h>
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#include <fcntl.h>
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#include <ctype.h>
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#include "obstack.h"
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#include <sys/param.h>
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1992-02-11 08:01:35 +08:00
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#ifndef NO_SYS_FILE
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1991-11-12 23:24:56 +08:00
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#include <sys/file.h>
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1992-02-11 08:01:35 +08:00
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#endif
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1991-11-12 23:24:56 +08:00
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#include <sys/stat.h>
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#include "symtab.h"
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1992-02-22 09:46:16 +08:00
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#include "gdbtypes.h"
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1991-11-12 23:24:56 +08:00
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#include "symfile.h"
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#include "buildsym.h"
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1991-12-01 14:47:23 +08:00
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#include "coff/internal.h" /* FIXME, internal data from BFD */
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1991-11-12 23:24:56 +08:00
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#include "libcoff.h" /* FIXME, internal data from BFD */
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1991-12-01 14:47:23 +08:00
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#include "coff/rs6000.h" /* FIXME, raw file-format guts of xcoff */
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1991-11-12 23:24:56 +08:00
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/* Simplified internal version of coff symbol table information */
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struct coff_symbol {
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char *c_name;
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int c_symnum; /* symbol number of this entry */
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int c_nsyms; /* 0 if syment only, 1 if syment + auxent */
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long c_value;
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int c_sclass;
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int c_secnum;
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unsigned int c_type;
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};
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/* The COFF line table, in raw form. */
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static char *linetab = NULL; /* Its actual contents */
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static long linetab_offset; /* Its offset in the file */
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static unsigned long linetab_size; /* Its size */
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/* last function's saved coff symbol `cs' */
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static struct coff_symbol fcn_cs_saved;
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static bfd *symfile_bfd;
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/* Core address of start and end of text of current source file.
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This is calculated from the first function seen after a C_FILE
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symbol. */
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static CORE_ADDR cur_src_start_addr;
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static CORE_ADDR cur_src_end_addr;
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/* Core address of the end of the first object file. */
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static CORE_ADDR first_object_file_end;
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/* pointer to the string table */
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static char *strtbl;
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/* length of the string table */
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static int strtbl_len;
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/* pointer to debug section */
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static char *debugsec;
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/* pointer to the a.out symbol table */
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static char *symtbl;
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/* initial symbol-table-debug-string vector length */
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#define INITIAL_STABVECTOR_LENGTH 40
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struct pending_stabs *global_stabs;
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struct pending_stabs *file_stabs;
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/* Nonzero if within a function (so symbols should be local,
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if nothing says specifically). */
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int within_function;
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/* Local variables that hold the shift and mask values for the
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COFF file that we are currently reading. These come back to us
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from BFD, and are referenced by their macro names, as well as
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internally to the BTYPE, ISPTR, ISFCN, ISARY, ISTAG, and DECREF
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macros from ../internalcoff.h . */
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static unsigned local_n_btshft;
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static unsigned local_n_tmask;
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#undef N_BTSHFT
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#define N_BTSHFT local_n_btshft
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#undef N_TMASK
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#define N_TMASK local_n_tmask
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/* Local variables that hold the sizes in the file of various COFF structures.
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(We only need to know this to read them from the file -- BFD will then
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translate the data in them, into `internal_xxx' structs in the right
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byte order, alignment, etc.) */
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static unsigned local_symesz;
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/* coff_symfile_init()
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is the coff-specific initialization routine for reading symbols.
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It is passed a struct sym_fns which contains, among other things,
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the BFD for the file whose symbols are being read, and a slot for
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a pointer to "private data" which we fill with cookies and other
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treats for coff_symfile_read().
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We will only be called if this is a COFF or COFF-like file.
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BFD handles figuring out the format of the file, and code in symtab.c
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uses BFD's determination to vector to us.
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The ultimate result is a new symtab (or, FIXME, eventually a psymtab). */
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struct coff_symfile_info {
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file_ptr min_lineno_offset; /* Where in file lowest line#s are */
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file_ptr max_lineno_offset; /* 1+last byte of line#s in file */
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};
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1992-02-22 09:46:16 +08:00
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static void
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enter_line_range PARAMS ((struct subfile *, unsigned, unsigned, CORE_ADDR,
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unsigned *));
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static void
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aixcoff_symfile_read PARAMS ((struct sym_fns *, CORE_ADDR, int));
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static void
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free_debugsection PARAMS ((void));
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static int
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init_debugsection PARAMS ((bfd *));
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static int
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init_stringtab PARAMS ((bfd *, long, struct objfile *));
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static void
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aixcoff_symfile_init PARAMS ((struct sym_fns *));
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static void
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aixcoff_new_init PARAMS ((void));
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static void
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dump_minimal_symbols PARAMS ((struct objfile *));
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static void
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dump_symtab_lines PARAMS ((struct symtab *));
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static void
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dump_symtabs PARAMS ((struct symtab *));
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static void
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dump_last_symtab PARAMS ((struct symtab *));
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static void
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dump_blockvector PARAMS ((struct blockvector *));
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static void
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dump_block PARAMS ((struct block *));
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static char *
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dump_addrclass PARAMS ((int));
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static char *
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dump_namespace PARAMS ((int));
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static void
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dump_symbol PARAMS ((struct symbol *));
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static void
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dump_type PARAMS ((struct type *));
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static void
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dump_linetable PARAMS ((struct linetable *));
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static void
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dump_strtbl PARAMS ((void));
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static int
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init_lineno PARAMS ((bfd *, long, int));
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static void
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find_linenos PARAMS ((bfd *, sec_ptr, PTR));
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static int
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read_symbol_lineno PARAMS ((char *, int));
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static int
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read_symbol_nvalue PARAMS ((char *, int));
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static struct symbol *
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process_xcoff_symbol PARAMS ((struct coff_symbol *, struct objfile *));
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static void
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read_xcoff_symtab PARAMS ((struct objfile *, int));
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static void
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enter_line_range PARAMS ((struct subfile *, unsigned, unsigned, CORE_ADDR,
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unsigned *));
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static void
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add_stab_to_list PARAMS ((char *, struct pending_stabs **));
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static void
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sort_syms PARAMS ((void));
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static int
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compare_symbols PARAMS ((const void *, const void *));
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1991-11-12 23:24:56 +08:00
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/* Call sort_syms to sort alphabetically
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the symbols of each block of each symtab. */
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static int
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1992-02-22 09:46:16 +08:00
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compare_symbols (s1p, s2p)
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const PTR s1p;
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const PTR s2p;
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1991-11-12 23:24:56 +08:00
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{
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/* Names that are less should come first. */
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1992-02-22 09:46:16 +08:00
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register struct symbol **s1 = (struct symbol **) s1p;
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register struct symbol **s2 = (struct symbol **) s2p;
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1991-11-12 23:24:56 +08:00
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register int namediff = strcmp (SYMBOL_NAME (*s1), SYMBOL_NAME (*s2));
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if (namediff != 0)
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return namediff;
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/* For symbols of the same name, registers should come first. */
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return ((SYMBOL_CLASS (*s2) == LOC_REGISTER)
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- (SYMBOL_CLASS (*s1) == LOC_REGISTER));
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}
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/* Sort a vector of symbols by their value. */
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static void
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sort_syms ()
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{
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register struct symtab *s;
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1992-02-22 09:46:16 +08:00
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register struct objfile *objfile;
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1991-11-12 23:24:56 +08:00
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register int i, nbl;
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register struct blockvector *bv;
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register struct block *b;
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1992-02-22 09:46:16 +08:00
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for (objfile = object_files; objfile != NULL; objfile = objfile -> next)
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1991-11-12 23:24:56 +08:00
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{
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1992-02-22 09:46:16 +08:00
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for (s = objfile -> symtabs; s != NULL; s = s -> next)
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{
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bv = BLOCKVECTOR (s);
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nbl = BLOCKVECTOR_NBLOCKS (bv);
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for (i = 0; i < nbl; i++)
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{
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b = BLOCKVECTOR_BLOCK (bv, i);
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if (BLOCK_SHOULD_SORT (b))
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{
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qsort (&BLOCK_SYM (b, 0), BLOCK_NSYMS (b),
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sizeof (struct symbol *), compare_symbols);
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}
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}
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}
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1991-11-12 23:24:56 +08:00
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}
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}
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/* add a given stab string into given stab vector. */
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static void
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add_stab_to_list (stabname, stabvector)
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char *stabname;
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struct pending_stabs **stabvector;
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{
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if ( *stabvector == NULL) {
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*stabvector = (struct pending_stabs *)
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xmalloc (sizeof (struct pending_stabs) +
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INITIAL_STABVECTOR_LENGTH * sizeof (char*));
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(*stabvector)->count = 0;
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(*stabvector)->length = INITIAL_STABVECTOR_LENGTH;
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}
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else if ((*stabvector)->count >= (*stabvector)->length) {
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(*stabvector)->length += INITIAL_STABVECTOR_LENGTH;
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*stabvector = (struct pending_stabs *)
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1992-02-22 09:46:16 +08:00
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xrealloc ((char *) *stabvector, sizeof (struct pending_stabs) +
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1991-11-12 23:24:56 +08:00
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(*stabvector)->length * sizeof (char*));
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}
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(*stabvector)->stab [(*stabvector)->count++] = stabname;
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}
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/* Enter a given range of lines into the line vector.
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can be called in the following two ways:
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enter_line_range (subfile, beginoffset, endoffset, 0, firstLine) or
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enter_line_range (subfile, beginoffset, 0, endaddr, firstLine) */
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static void
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enter_line_range (subfile, beginoffset, endoffset, endaddr, firstLine)
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struct subfile *subfile; /* which sub-file to put line#s in */
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unsigned beginoffset, endoffset; /* offsets to line table */
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CORE_ADDR endaddr;
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unsigned *firstLine;
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{
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char *pp, *limit;
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CORE_ADDR addr;
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struct internal_lineno lptr;
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unsigned local_linesz = coff_data (symfile_bfd)->local_linesz;
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pp = &linetab [beginoffset - linetab_offset];
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limit = endoffset ? &linetab [endoffset - linetab_offset]
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: &linetab [linetab_size -1];
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while (pp <= limit) {
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/* Swap and align this lineno entry into lptr. */
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bfd_coff_swap_lineno_in (symfile_bfd, pp, &lptr);
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/* find the address this line represents */
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addr = lptr.l_lnno ?
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lptr.l_addr.l_paddr : read_symbol_nvalue (symtbl, lptr.l_addr.l_symndx);
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if (endaddr && addr >= endaddr)
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return;
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if (lptr.l_lnno == 0) {
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*firstLine = read_symbol_lineno (symtbl, lptr.l_addr.l_symndx);
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--(*firstLine);
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}
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else
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record_line (subfile, *firstLine + lptr.l_lnno, addr);
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pp += local_linesz;
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}
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}
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/* Save the vital information for use when closing off the current file.
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NAME is the file name the symbols came from, START_ADDR is the first
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text address for the file, and SIZE is the number of bytes of text. */
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#define complete_symtab(name, start_addr) { \
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last_source_file = savestring (name, strlen (name)); \
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cur_src_start_addr = start_addr; \
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}
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/* Refill the symbol table input buffer
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and set the variables that control fetching entries from it.
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|
|
Reports an error if no data available.
|
|
|
|
This function can read past the end of the symbol table
|
|
|
|
(into the string table) but this does no harm. */
|
|
|
|
|
|
|
|
/* Reading symbol table has to be fast! Keep the followings as macros, rather
|
|
|
|
than functions. */
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
#define RECORD_MINIMAL_SYMBOL(NAME, ADDR, TYPE, ALLOCED) \
|
1991-11-12 23:24:56 +08:00
|
|
|
{ \
|
|
|
|
char *namestr; \
|
|
|
|
if (ALLOCED) \
|
|
|
|
namestr = (NAME) + 1; \
|
|
|
|
else { \
|
1992-02-22 09:46:16 +08:00
|
|
|
namestr = obstack_copy0 (&objfile->symbol_obstack, (NAME) + 1, strlen ((NAME)+1)); \
|
1991-11-12 23:24:56 +08:00
|
|
|
(ALLOCED) = 1; \
|
|
|
|
} \
|
1992-02-22 09:46:16 +08:00
|
|
|
prim_record_minimal_symbol (namestr, (ADDR), (TYPE)); \
|
1991-11-12 23:24:56 +08:00
|
|
|
last_recorded_fun = (ADDR); \
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* aixcoff has static blocks marked in `.bs', `.es' pairs. They cannot be
|
|
|
|
nested. At any given time, a symbol can only be in one static block.
|
|
|
|
This is the base address of current static block, zero if non exists. */
|
|
|
|
|
|
|
|
static int static_block_base = 0;
|
|
|
|
|
|
|
|
/* true if space for symbol name has been allocated. */
|
|
|
|
|
|
|
|
static int symname_alloced = 0;
|
|
|
|
|
|
|
|
/* read the whole symbol table of a given bfd. */
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
static void
|
1991-11-12 23:24:56 +08:00
|
|
|
read_xcoff_symtab (objfile, nsyms)
|
|
|
|
struct objfile *objfile; /* Object file we're reading from */
|
|
|
|
int nsyms; /* # of symbols */
|
|
|
|
{
|
|
|
|
bfd *abfd = objfile->obfd;
|
|
|
|
/* char *symtbl; */ /* Raw symbol table base */
|
|
|
|
char *raw_symbol; /* Pointer into raw seething symbol table */
|
|
|
|
char *raw_auxptr; /* Pointer to first raw aux entry for sym */
|
|
|
|
struct internal_syment symbol[1];
|
|
|
|
union internal_auxent main_aux[1];
|
|
|
|
struct coff_symbol cs[1];
|
|
|
|
CORE_ADDR file_start_addr = 0;
|
|
|
|
CORE_ADDR file_end_addr = 0;
|
|
|
|
|
|
|
|
int next_file_symnum = -1;
|
|
|
|
int just_started = 1;
|
|
|
|
int depth = 0;
|
|
|
|
int val;
|
|
|
|
int fcn_first_line;
|
|
|
|
int fcn_last_line;
|
|
|
|
int fcn_start_addr;
|
|
|
|
long fcn_line_offset;
|
|
|
|
size_t size;
|
|
|
|
|
|
|
|
/* fcn_cs_saved is global because process_xcoff_symbol needs it. */
|
|
|
|
union internal_auxent fcn_aux_saved;
|
|
|
|
struct context_stack *new;
|
|
|
|
|
|
|
|
char *filestring = " _start_ "; /* Name of the current file. */
|
|
|
|
char *last_seen_csect;
|
|
|
|
int last_recorded_fun = 0; /* last recorded fun. value */
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
current_objfile = objfile;
|
|
|
|
|
1991-11-12 23:24:56 +08:00
|
|
|
/* Get the appropriate COFF "constants" related to the file we're handling. */
|
|
|
|
N_TMASK = coff_data (abfd)->local_n_tmask;
|
|
|
|
N_BTSHFT = coff_data (abfd)->local_n_btshft;
|
|
|
|
local_symesz = coff_data (abfd)->local_symesz;
|
|
|
|
|
|
|
|
last_source_file = 0;
|
|
|
|
last_seen_csect = 0;
|
|
|
|
last_recorded_fun = 0;
|
|
|
|
|
|
|
|
start_symtab (filestring, (char *)NULL, file_start_addr);
|
|
|
|
symnum = 0;
|
|
|
|
first_object_file_end = 0;
|
|
|
|
|
|
|
|
/* Allocate space for the entire symbol table at once, and read it
|
|
|
|
all in. The bfd is already positioned at the beginning of
|
|
|
|
the symbol table. */
|
|
|
|
|
|
|
|
size = coff_data (abfd)->local_symesz * nsyms;
|
|
|
|
symtbl = xmalloc (size);
|
|
|
|
|
|
|
|
val = bfd_read (symtbl, size, 1, abfd);
|
|
|
|
if (val != size)
|
|
|
|
perror_with_name ("reading symbol table");
|
|
|
|
|
|
|
|
raw_symbol = symtbl;
|
|
|
|
|
|
|
|
while (symnum < nsyms) {
|
|
|
|
|
|
|
|
QUIT; /* make this command interruptable. */
|
|
|
|
|
|
|
|
/* READ_ONE_SYMBOL (symbol, cs, symname_alloced); */
|
|
|
|
/* read one symbol into `cs' structure. After processing the whole symbol
|
|
|
|
table, only string table will be kept in memory, symbol table and debug
|
|
|
|
section of aixcoff will be freed. Thus we can mark symbols with names
|
|
|
|
in string table as `alloced'. */
|
|
|
|
{
|
|
|
|
int ii;
|
|
|
|
|
|
|
|
/* Swap and align the symbol into a reasonable C structure. */
|
|
|
|
bfd_coff_swap_sym_in (abfd, raw_symbol, symbol);
|
|
|
|
|
|
|
|
cs->c_symnum = symnum;
|
|
|
|
cs->c_nsyms = symbol->n_numaux;
|
|
|
|
if (symbol->n_zeroes) {
|
|
|
|
symname_alloced = 0;
|
|
|
|
/* We must use the original, unswapped, name here so the name field
|
|
|
|
pointed to by cs->c_name will persist throughout xcoffread. If
|
|
|
|
we use the new field, it gets overwritten for each symbol. */
|
|
|
|
cs->c_name = ((struct external_syment *)raw_symbol)->e.e_name;
|
|
|
|
} else if (symbol->n_sclass & 0x80) {
|
|
|
|
cs->c_name = debugsec + symbol->n_offset;
|
|
|
|
symname_alloced = 0;
|
|
|
|
} else { /* in string table */
|
|
|
|
cs->c_name = strtbl + (int)symbol->n_offset;
|
|
|
|
symname_alloced = 1;
|
|
|
|
}
|
|
|
|
cs->c_value = symbol->n_value;
|
|
|
|
cs->c_sclass = symbol->n_sclass & 0xff;
|
|
|
|
cs->c_secnum = symbol->n_scnum;
|
|
|
|
cs->c_type = (unsigned)symbol->n_type;
|
|
|
|
|
|
|
|
raw_symbol += coff_data (abfd)->local_symesz;
|
|
|
|
++symnum;
|
|
|
|
|
|
|
|
raw_auxptr = raw_symbol; /* Save addr of first aux entry */
|
|
|
|
|
|
|
|
/* Skip all the auxents associated with this symbol. */
|
|
|
|
for (ii = symbol->n_numaux; ii; --ii ) {
|
|
|
|
raw_symbol += coff_data (abfd)->local_auxesz;
|
|
|
|
++symnum;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* if symbol name starts with ".$" or "$", ignore it. */
|
|
|
|
if (cs->c_name[0] == '$' || (cs->c_name[1] == '$' && cs->c_name[0] == '.'))
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if (cs->c_symnum == next_file_symnum && cs->c_sclass != C_FILE) {
|
|
|
|
if (last_source_file)
|
|
|
|
end_symtab (cur_src_end_addr, 1, 1, objfile);
|
|
|
|
|
|
|
|
start_symtab ("_globals_", (char *)NULL, (CORE_ADDR)0);
|
|
|
|
cur_src_end_addr = first_object_file_end;
|
|
|
|
/* done with all files, everything from here on is globals */
|
|
|
|
}
|
|
|
|
|
|
|
|
/* if explicitly specified as a function, treat is as one. */
|
|
|
|
if (ISFCN(cs->c_type) && cs->c_sclass != C_TPDEF) {
|
|
|
|
bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass,
|
|
|
|
main_aux);
|
|
|
|
goto function_entry_point;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((cs->c_sclass == C_EXT || cs->c_sclass == C_HIDEXT) && cs->c_nsyms == 1)
|
|
|
|
{
|
|
|
|
/* dealing with a symbol with a csect entry. */
|
|
|
|
|
|
|
|
# define CSECT(PP) ((PP)->x_csect)
|
|
|
|
# define CSECT_LEN(PP) (CSECT(PP).x_scnlen)
|
|
|
|
# define CSECT_ALIGN(PP) (SMTYP_ALIGN(CSECT(PP).x_smtyp))
|
|
|
|
# define CSECT_SMTYP(PP) (SMTYP_SMTYP(CSECT(PP).x_smtyp))
|
|
|
|
# define CSECT_SCLAS(PP) (CSECT(PP).x_smclas)
|
|
|
|
|
|
|
|
/* Convert the auxent to something we can access. */
|
|
|
|
bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass,
|
|
|
|
main_aux);
|
|
|
|
|
|
|
|
switch (CSECT_SMTYP (main_aux)) {
|
|
|
|
|
|
|
|
case XTY_ER :
|
|
|
|
continue; /* ignore all external references. */
|
|
|
|
|
|
|
|
case XTY_SD : /* a section description. */
|
|
|
|
{
|
|
|
|
switch (CSECT_SCLAS (main_aux)) {
|
|
|
|
|
|
|
|
case XMC_PR : /* a `.text' csect. */
|
|
|
|
{
|
|
|
|
|
|
|
|
/* A program csect is seen.
|
|
|
|
|
|
|
|
We have to allocate one symbol table for each program csect. Normally
|
|
|
|
gdb prefers one symtab for each compilation unit (CU). In case of AIX, one
|
|
|
|
CU might include more than one prog csect, and they don't have to be
|
|
|
|
adjacent in terms of the space they occupy in memory. Thus, one single
|
|
|
|
CU might get fragmented in the memory and gdb's file start and end address
|
|
|
|
approach does not work! */
|
|
|
|
|
|
|
|
if (last_seen_csect) {
|
|
|
|
complete_symtab (filestring, file_start_addr);
|
|
|
|
cur_src_end_addr = file_end_addr;
|
|
|
|
end_symtab (file_end_addr, 1, 1, objfile);
|
|
|
|
start_symtab ((char *)NULL, (char *)NULL, (CORE_ADDR)0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If this is the very first csect seen, basically `__start'. */
|
|
|
|
if (just_started) {
|
|
|
|
first_object_file_end = cs->c_value + CSECT_LEN (main_aux);
|
|
|
|
just_started = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
file_start_addr = cs->c_value;
|
|
|
|
file_end_addr = cs->c_value + CSECT_LEN (main_aux);
|
|
|
|
|
|
|
|
if (cs->c_name && cs->c_name[0] == '.') {
|
|
|
|
last_seen_csect = cs->c_name;
|
1992-02-22 09:46:16 +08:00
|
|
|
RECORD_MINIMAL_SYMBOL (cs->c_name, cs->c_value, mst_text, symname_alloced);
|
1991-11-12 23:24:56 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
continue;
|
|
|
|
|
|
|
|
case XMC_RW :
|
|
|
|
break;
|
|
|
|
|
|
|
|
/* If the section is not a data description, ignore it. Note that
|
|
|
|
uninitialized data will show up as XTY_CM/XMC_RW pair. */
|
|
|
|
|
|
|
|
case XMC_TC0:
|
|
|
|
#ifdef XCOFF_ADD_TOC_TO_LOADINFO
|
|
|
|
XCOFF_ADD_TOC_TO_LOADINFO (cs->c_value);
|
|
|
|
#endif
|
|
|
|
/* fall down to default case. */
|
|
|
|
|
|
|
|
case XMC_TC : /* ignore toc entries */
|
|
|
|
default : /* any other XMC_XXX */
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break; /* switch CSECT_SCLAS() */
|
|
|
|
|
|
|
|
case XTY_LD :
|
|
|
|
|
|
|
|
/* a function entry point. */
|
|
|
|
if (CSECT_SCLAS (main_aux) == XMC_PR) {
|
|
|
|
|
|
|
|
function_entry_point:
|
|
|
|
if (cs->c_value != last_recorded_fun)
|
1992-02-22 09:46:16 +08:00
|
|
|
RECORD_MINIMAL_SYMBOL (cs->c_name, cs->c_value, mst_text,
|
1991-11-12 23:24:56 +08:00
|
|
|
symname_alloced);
|
|
|
|
|
|
|
|
fcn_line_offset = main_aux->x_sym.x_fcnary.x_fcn.x_lnnoptr;
|
|
|
|
fcn_start_addr = cs->c_value;
|
|
|
|
|
|
|
|
/* save the function header info, which will be used
|
|
|
|
when `.bf' is seen. */
|
|
|
|
fcn_cs_saved = *cs;
|
|
|
|
fcn_aux_saved = *main_aux;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* shared library function entry point. */
|
|
|
|
else if (CSECT_SCLAS (main_aux) == XMC_GL) {
|
|
|
|
if (last_recorded_fun != cs->c_value)
|
1992-02-22 09:46:16 +08:00
|
|
|
RECORD_MINIMAL_SYMBOL (cs->c_name, cs->c_value, mst_text,
|
1991-11-12 23:24:56 +08:00
|
|
|
symname_alloced);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default : /* all other XTY_XXXs */
|
|
|
|
break;
|
|
|
|
} /* switch CSECT_SMTYP() */
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (cs->c_sclass) {
|
|
|
|
|
|
|
|
case C_FILE:
|
|
|
|
|
|
|
|
/* c_value field contains symnum of next .file entry in table
|
|
|
|
or symnum of first global after last .file. */
|
|
|
|
|
|
|
|
next_file_symnum = cs->c_value;
|
|
|
|
|
|
|
|
/* complete symbol table for last object file containing
|
|
|
|
debugging information. */
|
|
|
|
|
|
|
|
/* Whether or not there was a csect in the previous file, we have
|
|
|
|
to call `end_symtab' and `start_symtab' to reset type_vector,
|
|
|
|
line_vector, etc. structures. */
|
|
|
|
complete_symtab (filestring, file_start_addr);
|
|
|
|
cur_src_end_addr = file_end_addr;
|
|
|
|
end_symtab (file_end_addr, 1, 1, objfile);
|
|
|
|
start_symtab (cs->c_name, (char *)NULL, (CORE_ADDR)0);
|
|
|
|
last_seen_csect = 0;
|
|
|
|
|
|
|
|
/* reset file start and end addresses. A compilation unit with no text
|
|
|
|
(only data) should have zero file boundaries. */
|
|
|
|
file_start_addr = file_end_addr = 0;
|
|
|
|
|
|
|
|
filestring = cs->c_name;
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
|
|
case C_FCN:
|
|
|
|
if (strcmp (cs->c_name, ".bf") == 0) {
|
|
|
|
|
|
|
|
bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass,
|
|
|
|
main_aux);
|
|
|
|
|
|
|
|
within_function = 1;
|
|
|
|
|
|
|
|
/* value contains address of first non-init type code */
|
|
|
|
/* main_aux.x_sym.x_misc.x_lnsz.x_lnno
|
|
|
|
contains line number of '{' } */
|
|
|
|
fcn_first_line = main_aux->x_sym.x_misc.x_lnsz.x_lnno;
|
|
|
|
|
|
|
|
/* Linenos are now processed on a file-by-file, not fn-by-fn, basis.
|
|
|
|
Metin did it, I'm not sure why. FIXME. -- gnu@cygnus.com */
|
|
|
|
/* mark_first_line (fcn_line_offset, cs->c_symnum); */
|
|
|
|
|
|
|
|
new = push_context (0, fcn_start_addr);
|
1992-02-22 09:46:16 +08:00
|
|
|
new->name = process_xcoff_symbol (&fcn_cs_saved, objfile);
|
1991-11-12 23:24:56 +08:00
|
|
|
}
|
|
|
|
else if (strcmp (cs->c_name, ".ef") == 0) {
|
|
|
|
|
|
|
|
bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass,
|
|
|
|
main_aux);
|
|
|
|
|
|
|
|
/* the value of .ef is the address of epilogue code;
|
|
|
|
not useful for gdb */
|
|
|
|
/* { main_aux.x_sym.x_misc.x_lnsz.x_lnno
|
|
|
|
contains number of lines to '}' */
|
|
|
|
|
|
|
|
fcn_last_line = main_aux->x_sym.x_misc.x_lnsz.x_lnno;
|
|
|
|
#if 0
|
|
|
|
enter_linenos (fcn_line_offset, fcn_first_line,
|
|
|
|
fcn_first_line + fcn_last_line);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
new = pop_context ();
|
|
|
|
if (context_stack_depth != 0)
|
|
|
|
error ("invalid symbol data; .bf/.ef/.bb/.eb symbol mismatch, at symbol %d.",
|
|
|
|
symnum);
|
|
|
|
|
|
|
|
finish_block (new->name, &local_symbols, new->old_blocks,
|
|
|
|
new->start_addr,
|
|
|
|
fcn_cs_saved.c_value +
|
1992-02-22 09:46:16 +08:00
|
|
|
fcn_aux_saved.x_sym.x_misc.x_fsize, objfile);
|
1991-11-12 23:24:56 +08:00
|
|
|
within_function = 0;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case C_BSTAT : /* begin static block */
|
|
|
|
static_block_base = read_symbol_nvalue (symtbl, cs->c_value);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case C_ESTAT : /* end of static block */
|
|
|
|
static_block_base = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case C_ARG : /* These are not implemented. */
|
|
|
|
case C_REGPARM :
|
|
|
|
case C_TPDEF :
|
|
|
|
case C_STRTAG :
|
|
|
|
case C_UNTAG :
|
|
|
|
case C_ENTAG :
|
|
|
|
printf ("ERROR: Unimplemented storage class: %d.\n", cs->c_sclass);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case C_HIDEXT : /* ignore these.. */
|
|
|
|
case C_LABEL :
|
|
|
|
case C_NULL :
|
|
|
|
break;
|
|
|
|
|
|
|
|
case C_BINCL : /* beginning of include file */
|
|
|
|
push_subfile ();
|
|
|
|
start_subfile (cs->c_name, (char *)0);
|
|
|
|
fcn_first_line = cs->c_value; /* Offset to first lineno of file */
|
|
|
|
break;
|
|
|
|
|
|
|
|
case C_EINCL : /* end of include file */
|
|
|
|
fcn_last_line = cs->c_value; /* Offset to last line number */
|
|
|
|
{ long dummy = 0;
|
|
|
|
enter_line_range (current_subfile, fcn_first_line, cs->c_value, 0,
|
1992-02-22 09:46:16 +08:00
|
|
|
(unsigned *) &dummy);
|
1991-11-12 23:24:56 +08:00
|
|
|
}
|
|
|
|
start_subfile (pop_subfile (), (char *)0);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case C_BLOCK :
|
|
|
|
if (strcmp (cs->c_name, ".bb") == 0) {
|
|
|
|
depth++;
|
|
|
|
new = push_context (depth, cs->c_value);
|
|
|
|
}
|
|
|
|
else if (strcmp (cs->c_name, ".eb") == 0) {
|
|
|
|
new = pop_context ();
|
|
|
|
if (depth != new->depth)
|
|
|
|
error ("Invalid symbol data: .bb/.eb symbol mismatch at symbol %d.",
|
|
|
|
symnum);
|
|
|
|
|
|
|
|
depth--;
|
|
|
|
if (local_symbols && context_stack_depth > 0) {
|
|
|
|
/* Make a block for the local symbols within. */
|
|
|
|
finish_block (new->name, &local_symbols, new->old_blocks,
|
1992-02-22 09:46:16 +08:00
|
|
|
new->start_addr, cs->c_value, objfile);
|
1991-11-12 23:24:56 +08:00
|
|
|
}
|
|
|
|
local_symbols = new->locals;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default :
|
1992-02-22 09:46:16 +08:00
|
|
|
(void) process_xcoff_symbol (cs, objfile);
|
1991-11-12 23:24:56 +08:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
} /* while */
|
|
|
|
|
|
|
|
if (last_source_file)
|
|
|
|
end_symtab (cur_src_end_addr, 1, 1, objfile);
|
|
|
|
|
|
|
|
free (symtbl);
|
1992-02-22 09:46:16 +08:00
|
|
|
current_objfile = NULL;
|
1991-11-12 23:24:56 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
#define SYMBOL_DUP(SYMBOL1, SYMBOL2) \
|
|
|
|
(SYMBOL2) = (struct symbol *) \
|
1992-02-22 09:46:16 +08:00
|
|
|
obstack_alloc (&objfile->symbol_obstack, sizeof (struct symbol)); \
|
1991-11-12 23:24:56 +08:00
|
|
|
*(SYMBOL2) = *(SYMBOL1);
|
|
|
|
|
|
|
|
|
|
|
|
#define SYMNAME_ALLOC(NAME, ALLOCED) \
|
1992-02-22 09:46:16 +08:00
|
|
|
(ALLOCED) ? (NAME) : obstack_copy0 (&objfile->symbol_obstack, (NAME), strlen (NAME));
|
1991-11-12 23:24:56 +08:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* process one xcoff symbol. */
|
|
|
|
|
|
|
|
static struct symbol *
|
1992-02-22 09:46:16 +08:00
|
|
|
process_xcoff_symbol (cs, objfile)
|
1991-11-12 23:24:56 +08:00
|
|
|
register struct coff_symbol *cs;
|
1992-02-22 09:46:16 +08:00
|
|
|
struct objfile *objfile;
|
1991-11-12 23:24:56 +08:00
|
|
|
{
|
|
|
|
struct symbol onesymbol;
|
|
|
|
register struct symbol *sym = &onesymbol;
|
|
|
|
struct symbol *sym2 = NULL;
|
|
|
|
struct type *ttype;
|
|
|
|
char *name, *pp, *qq;
|
|
|
|
|
|
|
|
name = cs->c_name;
|
|
|
|
if (name[0] == '.')
|
|
|
|
++name;
|
|
|
|
|
|
|
|
bzero (sym, sizeof (struct symbol));
|
|
|
|
|
|
|
|
/* default assumptions */
|
|
|
|
SYMBOL_VALUE (sym) = cs->c_value;
|
|
|
|
SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
|
|
|
|
|
|
|
|
if (ISFCN (cs->c_type)) {
|
|
|
|
|
|
|
|
/* At this point, we don't know the type of the function and assume it
|
|
|
|
is int. This will be patched with the type from its stab entry later
|
|
|
|
on in patch_block_stabs () */
|
|
|
|
|
|
|
|
SYMBOL_NAME (sym) = SYMNAME_ALLOC (name, symname_alloced);
|
1992-02-22 09:46:16 +08:00
|
|
|
SYMBOL_TYPE (sym) = lookup_function_type (lookup_fundamental_type (current_objfile, FT_INTEGER));
|
1991-11-12 23:24:56 +08:00
|
|
|
|
|
|
|
SYMBOL_CLASS (sym) = LOC_BLOCK;
|
|
|
|
SYMBOL_DUP (sym, sym2);
|
|
|
|
|
|
|
|
if (cs->c_sclass == C_EXT)
|
|
|
|
add_symbol_to_list (sym2, &global_symbols);
|
|
|
|
else if (cs->c_sclass == C_HIDEXT || cs->c_sclass == C_STAT)
|
|
|
|
add_symbol_to_list (sym2, &file_symbols);
|
|
|
|
}
|
|
|
|
|
|
|
|
else {
|
|
|
|
|
|
|
|
/* in case we can't figure out the type, default is `int'. */
|
1992-02-22 09:46:16 +08:00
|
|
|
SYMBOL_TYPE (sym) = lookup_fundamental_type (current_objfile, FT_INTEGER);
|
1991-11-12 23:24:56 +08:00
|
|
|
|
|
|
|
switch (cs->c_sclass)
|
|
|
|
{
|
|
|
|
case C_FUN:
|
|
|
|
if (fcn_cs_saved.c_sclass == C_EXT)
|
|
|
|
add_stab_to_list (name, &global_stabs);
|
|
|
|
else
|
|
|
|
add_stab_to_list (name, &file_stabs);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case C_DECL: /* a type decleration?? */
|
1992-02-22 09:46:16 +08:00
|
|
|
qq = (char*) strchr (name, ':');
|
1991-11-12 23:24:56 +08:00
|
|
|
if (!qq) /* skip if there is no ':' */
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
pp = qq + 2;
|
1992-02-22 09:46:16 +08:00
|
|
|
ttype = SYMBOL_TYPE (sym) = read_type (&pp, objfile);
|
1991-11-12 23:24:56 +08:00
|
|
|
|
|
|
|
/* read_type() will return null if type (or tag) definition was
|
|
|
|
unnnecessarily duplicated. Also, if the symbol doesn't have a name,
|
|
|
|
there is no need to keep it in symbol table. */
|
|
|
|
|
|
|
|
if (!ttype || name == qq)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
if (qq[1] == 'T')
|
|
|
|
SYMBOL_NAMESPACE (sym) = STRUCT_NAMESPACE;
|
|
|
|
else if (qq[1] == 't')
|
|
|
|
SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
|
|
|
|
else {
|
|
|
|
printf ("ERROR: Unrecognized stab string.\n");
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
SYMBOL_CLASS (sym) = LOC_TYPEDEF;
|
1992-02-22 09:46:16 +08:00
|
|
|
SYMBOL_NAME (sym) = obsavestring (name, qq-name, &objfile->symbol_obstack);
|
1991-11-12 23:24:56 +08:00
|
|
|
|
|
|
|
if (SYMBOL_NAMESPACE (sym) == STRUCT_NAMESPACE)
|
|
|
|
TYPE_NAME (ttype) = concat (
|
|
|
|
TYPE_CODE (ttype) == TYPE_CODE_UNION ? "union " :
|
|
|
|
TYPE_CODE (ttype) == TYPE_CODE_STRUCT? "struct " : "enum ",
|
1991-11-13 01:50:14 +08:00
|
|
|
SYMBOL_NAME (sym), NULL);
|
1991-11-12 23:24:56 +08:00
|
|
|
|
|
|
|
else if (!TYPE_NAME (ttype)) /* else, regular typedef. */
|
|
|
|
TYPE_NAME (ttype) = SYMBOL_NAME (sym);
|
|
|
|
|
|
|
|
SYMBOL_DUP (sym, sym2);
|
|
|
|
add_symbol_to_list
|
|
|
|
(sym2, within_function ? &local_symbols : &file_symbols);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case C_GSYM:
|
|
|
|
add_stab_to_list (name, &global_stabs);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case C_PSYM:
|
1992-02-22 09:46:16 +08:00
|
|
|
if (*name == ':' || (pp = (char *) strchr (name, ':')) == NULL)
|
1991-11-12 23:24:56 +08:00
|
|
|
return NULL;
|
1992-02-22 09:46:16 +08:00
|
|
|
SYMBOL_NAME (sym) = obsavestring (name, pp-name, &objfile -> symbol_obstack);
|
1991-11-12 23:24:56 +08:00
|
|
|
SYMBOL_CLASS (sym) = LOC_ARG;
|
|
|
|
pp += 2;
|
1992-02-22 09:46:16 +08:00
|
|
|
SYMBOL_TYPE (sym) = read_type (&pp, objfile);
|
1991-11-12 23:24:56 +08:00
|
|
|
SYMBOL_DUP (sym, sym2);
|
|
|
|
add_symbol_to_list (sym2, &local_symbols);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case C_STSYM:
|
1992-02-22 09:46:16 +08:00
|
|
|
if (*name == ':' || (pp = (char *) strchr (name, ':')) == NULL)
|
1991-11-12 23:24:56 +08:00
|
|
|
return NULL;
|
1992-02-22 09:46:16 +08:00
|
|
|
SYMBOL_NAME (sym) = obsavestring (name, pp-name, &objfile -> symbol_obstack);
|
1991-11-12 23:24:56 +08:00
|
|
|
SYMBOL_CLASS (sym) = LOC_STATIC;
|
|
|
|
SYMBOL_VALUE (sym) += static_block_base;
|
|
|
|
pp += 2;
|
1992-02-22 09:46:16 +08:00
|
|
|
SYMBOL_TYPE (sym) = read_type (&pp, objfile);
|
1991-11-12 23:24:56 +08:00
|
|
|
SYMBOL_DUP (sym, sym2);
|
|
|
|
add_symbol_to_list
|
|
|
|
(sym2, within_function ? &local_symbols : &file_symbols);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case C_LSYM:
|
1992-02-22 09:46:16 +08:00
|
|
|
if (*name == ':' || (pp = (char *) strchr (name, ':')) == NULL)
|
1991-11-12 23:24:56 +08:00
|
|
|
return NULL;
|
1992-02-22 09:46:16 +08:00
|
|
|
SYMBOL_NAME (sym) = obsavestring (name, pp-name, &objfile -> symbol_obstack);
|
1991-11-12 23:24:56 +08:00
|
|
|
SYMBOL_CLASS (sym) = LOC_LOCAL;
|
|
|
|
pp += 1;
|
1992-02-22 09:46:16 +08:00
|
|
|
SYMBOL_TYPE (sym) = read_type (&pp, objfile);
|
1991-11-12 23:24:56 +08:00
|
|
|
SYMBOL_DUP (sym, sym2);
|
|
|
|
add_symbol_to_list (sym2, &local_symbols);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case C_AUTO:
|
|
|
|
SYMBOL_CLASS (sym) = LOC_LOCAL;
|
|
|
|
SYMBOL_NAME (sym) = SYMNAME_ALLOC (name, symname_alloced);
|
|
|
|
SYMBOL_DUP (sym, sym2);
|
|
|
|
add_symbol_to_list (sym2, &local_symbols);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case C_EXT:
|
|
|
|
SYMBOL_CLASS (sym) = LOC_STATIC;
|
|
|
|
SYMBOL_NAME (sym) = SYMNAME_ALLOC (name, symname_alloced);
|
|
|
|
SYMBOL_DUP (sym, sym2);
|
|
|
|
add_symbol_to_list (sym2, &global_symbols);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case C_STAT:
|
|
|
|
SYMBOL_CLASS (sym) = LOC_STATIC;
|
|
|
|
SYMBOL_NAME (sym) = SYMNAME_ALLOC (name, symname_alloced);
|
|
|
|
SYMBOL_DUP (sym, sym2);
|
|
|
|
add_symbol_to_list
|
|
|
|
(sym2, within_function ? &local_symbols : &file_symbols);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case C_REG:
|
|
|
|
printf ("ERROR! C_REG is not fully implemented!\n");
|
|
|
|
SYMBOL_CLASS (sym) = LOC_REGISTER;
|
|
|
|
SYMBOL_NAME (sym) = SYMNAME_ALLOC (name, symname_alloced);
|
|
|
|
SYMBOL_DUP (sym, sym2);
|
|
|
|
add_symbol_to_list (sym2, &local_symbols);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case C_RSYM:
|
1992-02-22 09:46:16 +08:00
|
|
|
pp = (char*) strchr (name, ':');
|
1991-11-12 23:24:56 +08:00
|
|
|
SYMBOL_CLASS (sym) = LOC_REGISTER;
|
|
|
|
SYMBOL_VALUE (sym) = STAB_REG_TO_REGNUM (cs->c_value);
|
|
|
|
if (pp) {
|
1992-02-22 09:46:16 +08:00
|
|
|
SYMBOL_NAME (sym) = obsavestring (name, pp-name, &objfile -> symbol_obstack);
|
1991-11-12 23:24:56 +08:00
|
|
|
pp += 2;
|
|
|
|
if (*pp)
|
1992-02-22 09:46:16 +08:00
|
|
|
SYMBOL_TYPE (sym) = read_type (&pp, objfile);
|
1991-11-12 23:24:56 +08:00
|
|
|
}
|
|
|
|
else
|
|
|
|
/* else this is not a stab entry, suppose the type is either
|
|
|
|
`int' or `float', depending on the register class. */
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
SYMBOL_TYPE (sym) = (SYMBOL_VALUE (sym) < 32)
|
|
|
|
? lookup_fundamental_type (current_objfile, FT_INTEGER)
|
|
|
|
: lookup_fundamental_type (current_objfile, FT_FLOAT);
|
1991-11-12 23:24:56 +08:00
|
|
|
|
|
|
|
SYMBOL_DUP (sym, sym2);
|
|
|
|
add_symbol_to_list (sym2, &local_symbols);
|
|
|
|
break;
|
|
|
|
|
|
|
|
default :
|
|
|
|
printf ("ERROR: Unexpected storage class: %d.\n", cs->c_sclass);
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return sym2;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
read_symbol_nvalue (symtable, symno)
|
|
|
|
char *symtable;
|
|
|
|
int symno;
|
|
|
|
{
|
|
|
|
struct internal_syment symbol[1];
|
|
|
|
|
|
|
|
bfd_coff_swap_sym_in (symfile_bfd, symtable + (symno*local_symesz), symbol);
|
|
|
|
return symbol->n_value;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
read_symbol_lineno (symtable, symno)
|
|
|
|
char *symtable;
|
|
|
|
int symno;
|
|
|
|
{
|
|
|
|
struct internal_syment symbol[1];
|
|
|
|
union internal_auxent main_aux[1];
|
|
|
|
|
|
|
|
int ii;
|
|
|
|
|
|
|
|
for (ii = 0; ii < 50; ii++) {
|
|
|
|
bfd_coff_swap_sym_in (symfile_bfd,
|
|
|
|
symtable + (symno*local_symesz), symbol);
|
|
|
|
if (symbol->n_sclass == C_FCN && 0 == strcmp (symbol->n_name, ".bf"))
|
|
|
|
goto gotit;
|
1991-12-21 08:36:59 +08:00
|
|
|
symno += symbol->n_numaux+1;
|
1991-11-12 23:24:56 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
printf ("GDB Error: `.bf' not found.\n");
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
gotit:
|
|
|
|
/* take aux entry and return its lineno */
|
|
|
|
symno++;
|
|
|
|
bfd_coff_swap_aux_in (symfile_bfd, symtable+(symno*local_symesz),
|
|
|
|
symbol->n_type, symbol->n_sclass, main_aux);
|
|
|
|
|
|
|
|
return main_aux->x_sym.x_misc.x_lnsz.x_lnno;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Support for line number handling */
|
|
|
|
|
|
|
|
/* This function is called for every section; it finds the outer limits
|
|
|
|
* of the line table (minimum and maximum file offset) so that the
|
|
|
|
* mainline code can read the whole thing for efficiency.
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
find_linenos(abfd, asect, vpinfo)
|
|
|
|
bfd *abfd;
|
|
|
|
sec_ptr asect;
|
1992-02-22 09:46:16 +08:00
|
|
|
PTR vpinfo;
|
1991-11-12 23:24:56 +08:00
|
|
|
{
|
|
|
|
struct coff_symfile_info *info;
|
|
|
|
int size, count;
|
|
|
|
file_ptr offset, maxoff;
|
|
|
|
|
|
|
|
count = asect->lineno_count;
|
|
|
|
|
|
|
|
if (count == 0)
|
|
|
|
return;
|
|
|
|
|
|
|
|
size = count * coff_data (symfile_bfd)->local_linesz;
|
|
|
|
info = (struct coff_symfile_info *)vpinfo;
|
|
|
|
offset = asect->line_filepos;
|
|
|
|
maxoff = offset + size;
|
|
|
|
|
|
|
|
if (offset < info->min_lineno_offset || info->min_lineno_offset == 0)
|
|
|
|
info->min_lineno_offset = offset;
|
|
|
|
|
|
|
|
if (maxoff > info->max_lineno_offset)
|
|
|
|
info->max_lineno_offset = maxoff;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Read in all the line numbers for fast lookups later. Leave them in
|
|
|
|
external (unswapped) format in memory; we'll swap them as we enter
|
|
|
|
them into GDB's data structures. */
|
|
|
|
|
|
|
|
static int
|
|
|
|
init_lineno (abfd, offset, size)
|
|
|
|
bfd *abfd;
|
|
|
|
long offset;
|
|
|
|
int size;
|
|
|
|
{
|
|
|
|
int val;
|
|
|
|
|
|
|
|
if (bfd_seek(abfd, offset, 0) < 0)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
linetab = (char *) xmalloc(size);
|
|
|
|
|
|
|
|
val = bfd_read(linetab, 1, size, abfd);
|
|
|
|
if (val != size)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
linetab_offset = offset;
|
|
|
|
linetab_size = size;
|
1992-02-22 09:46:16 +08:00
|
|
|
make_cleanup (free, linetab); /* Be sure it gets de-allocated. */
|
1991-11-12 23:24:56 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
static void
|
1991-11-12 23:24:56 +08:00
|
|
|
dump_strtbl ()
|
|
|
|
{
|
|
|
|
int ii;
|
|
|
|
printf ("===STRING TABLE DUMP...\n\n");
|
|
|
|
for ( ii=0; ii < strtbl_len; ++ii )
|
|
|
|
printf ("%c", isprint (*(strtbl+ii)) ? *(strtbl+ii) : ' ');
|
|
|
|
printf ("\n");
|
|
|
|
}
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
static void
|
1991-11-12 23:24:56 +08:00
|
|
|
dump_linetable (ltb)
|
|
|
|
struct linetable *ltb;
|
|
|
|
{
|
|
|
|
int ii;
|
|
|
|
for (ii=0; ii < ltb->nitems; ++ii)
|
|
|
|
printf ("line: %d, addr: 0x%x\n", ltb->item[ii].line, ltb->item[ii].pc);
|
|
|
|
}
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
static void
|
1991-11-12 23:24:56 +08:00
|
|
|
dump_type (typeP)
|
|
|
|
struct type *typeP;
|
|
|
|
{
|
|
|
|
printf ("0x%x: name: %s\n", typeP, typeP->name ? typeP->name : "(nil)");
|
|
|
|
}
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
static void
|
1991-11-12 23:24:56 +08:00
|
|
|
dump_symbol (pp)
|
|
|
|
struct symbol *pp;
|
|
|
|
{
|
|
|
|
printf (" sym: %s\t%s,\t%s\ttype: 0x%x, val: 0x%x end: 0x%x\n",
|
|
|
|
pp->name, dump_namespace (pp->namespace),
|
|
|
|
dump_addrclass (pp->class), pp->type,
|
|
|
|
SYMBOL_CLASS(pp) == LOC_BLOCK ? BLOCK_START(SYMBOL_BLOCK_VALUE(pp))
|
|
|
|
: pp->value.value,
|
|
|
|
SYMBOL_CLASS(pp) == LOC_BLOCK ? BLOCK_END(SYMBOL_BLOCK_VALUE(pp)) : 0);
|
|
|
|
}
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
static char *
|
1991-11-12 23:24:56 +08:00
|
|
|
dump_namespace (ns)
|
|
|
|
int ns;
|
|
|
|
{
|
|
|
|
static char *ns_name [] = {
|
|
|
|
"UNDEF_NS", "VAR_NS", "STRUCT_NS", "LABEL_NS"};
|
|
|
|
|
|
|
|
switch (ns) {
|
|
|
|
case UNDEF_NAMESPACE:
|
|
|
|
case VAR_NAMESPACE:
|
|
|
|
case STRUCT_NAMESPACE:
|
|
|
|
case LABEL_NAMESPACE:
|
|
|
|
return ns_name[ns];
|
|
|
|
}
|
|
|
|
|
|
|
|
return "***ERROR***";
|
|
|
|
}
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
static char *
|
1991-11-12 23:24:56 +08:00
|
|
|
dump_addrclass (ac)
|
|
|
|
int ac; /* address class */
|
|
|
|
{
|
|
|
|
static char *ac_name [] = {
|
|
|
|
"LOC_UNDEF",
|
|
|
|
"LOC_CONST",
|
|
|
|
"LOC_STATIC",
|
|
|
|
"LOC_REGISTER",
|
|
|
|
"LOC_ARG",
|
|
|
|
"LOC_REF_ARG",
|
|
|
|
"LOC_REGPARM",
|
|
|
|
"LOC_LOCAL",
|
|
|
|
"LOC_TYPEDEF",
|
|
|
|
"LOC_LABEL",
|
|
|
|
"LOC_BLOCK",
|
|
|
|
"LOC_CONST_BYTES",
|
|
|
|
"LOC_LOCAL_ARG",
|
|
|
|
};
|
|
|
|
switch (ac) {
|
|
|
|
case LOC_UNDEF:
|
|
|
|
case LOC_CONST:
|
|
|
|
case LOC_STATIC:
|
|
|
|
case LOC_REGISTER:
|
|
|
|
case LOC_ARG:
|
|
|
|
case LOC_REF_ARG:
|
|
|
|
case LOC_REGPARM:
|
|
|
|
case LOC_LOCAL:
|
|
|
|
case LOC_TYPEDEF:
|
|
|
|
case LOC_LABEL:
|
|
|
|
case LOC_BLOCK:
|
|
|
|
case LOC_CONST_BYTES:
|
|
|
|
case LOC_LOCAL_ARG:
|
|
|
|
return ac_name [ac];
|
|
|
|
}
|
|
|
|
return "***ERROR***";
|
|
|
|
}
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
static void
|
1991-11-12 23:24:56 +08:00
|
|
|
dump_block (pp)
|
|
|
|
struct block *pp;
|
|
|
|
{
|
|
|
|
int ii;
|
|
|
|
printf ("BLOCK..: start: 0x%x, end: 0x%x\n", pp->startaddr, pp->endaddr);
|
|
|
|
for (ii=0; ii < pp->nsyms; ++ii)
|
|
|
|
dump_symbol (pp->sym[ii]);
|
|
|
|
}
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
static void
|
1991-11-12 23:24:56 +08:00
|
|
|
dump_blockvector (pp)
|
|
|
|
struct blockvector *pp;
|
|
|
|
{
|
|
|
|
int ii;
|
|
|
|
for (ii=0; ii < pp->nblocks; ++ii)
|
|
|
|
dump_block (pp->block [ii]);
|
|
|
|
}
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
static void
|
1991-11-12 23:24:56 +08:00
|
|
|
dump_last_symtab (pp)
|
|
|
|
struct symtab *pp;
|
|
|
|
{
|
|
|
|
for ( ; pp; pp = pp->next) {
|
|
|
|
if ( pp->next == 0 ) {
|
|
|
|
printf ("SYMTAB NAME: %s\n", pp->filename);
|
|
|
|
dump_blockvector (pp->blockvector);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
static void
|
1991-11-12 23:24:56 +08:00
|
|
|
dump_symtabs (pp)
|
|
|
|
struct symtab *pp;
|
|
|
|
{
|
|
|
|
for ( ; pp; pp = pp->next) {
|
|
|
|
printf ("SYMTAB NAME: %s\n", pp->filename ? pp->filename : "(nil)");
|
|
|
|
/* if (pp->linetable)
|
|
|
|
dump_linetable (pp->linetable); */
|
|
|
|
dump_blockvector (pp->blockvector);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
static void
|
1991-11-12 23:24:56 +08:00
|
|
|
dump_symtab_lines (pp)
|
|
|
|
struct symtab *pp;
|
|
|
|
{
|
|
|
|
for ( ; pp; pp = pp->next) {
|
|
|
|
printf ("SYMTAB NAME: %s\n", pp->filename ? pp->filename : "(nil)");
|
|
|
|
if (pp->linetable)
|
|
|
|
dump_linetable (pp->linetable);
|
|
|
|
/* dump_blockvector (pp->blockvector); */
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
static void
|
|
|
|
dump_minimal_symbols (objfile)
|
|
|
|
struct objfile *objfile;
|
1991-11-12 23:24:56 +08:00
|
|
|
{
|
1992-02-22 09:46:16 +08:00
|
|
|
struct minimal_symbol *msymbol;
|
|
|
|
|
|
|
|
for (msymbol = objfile -> msymbols; msymbol -> name != NULL; msymbol++)
|
|
|
|
{
|
|
|
|
printf ("name: %s, addr: 0x%x\n", msymbol -> name, msymbol -> address);
|
|
|
|
}
|
1991-11-12 23:24:56 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* dbx allows the text of a symbol name to be continued into the
|
|
|
|
next symbol name! When such a continuation is encountered
|
|
|
|
(a \ at the end of the text of a name)
|
|
|
|
call this function to get the continuation. */
|
|
|
|
/* So far, I haven't seen this happenning xlc output. I doubt we'll need this
|
|
|
|
for aixcoff. */
|
|
|
|
|
1992-01-01 20:32:19 +08:00
|
|
|
#undef next_symbol_text
|
1991-11-12 23:24:56 +08:00
|
|
|
#define next_symbol_text() \
|
|
|
|
printf ("Gdb Error: symbol names on multiple lines not implemented.\n")
|
|
|
|
|
|
|
|
|
|
|
|
/* xlc/dbx combination uses a set of builtin types, starting from -1. return
|
|
|
|
the proper type node fora given builtin type #. */
|
|
|
|
|
|
|
|
struct type *
|
|
|
|
builtin_type (pp)
|
|
|
|
char **pp;
|
|
|
|
{
|
|
|
|
int typenums[2];
|
|
|
|
|
|
|
|
if (**pp != '-') {
|
|
|
|
printf ("ERROR!, unknown built-in type!\n");
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
*pp += 1;
|
|
|
|
read_type_number (pp, typenums);
|
|
|
|
|
|
|
|
/* default types are defined in dbxstclass.h. */
|
|
|
|
switch ( typenums[1] ) {
|
|
|
|
case 1:
|
1992-02-22 09:46:16 +08:00
|
|
|
return lookup_fundamental_type (current_objfile, FT_INTEGER);
|
1991-11-12 23:24:56 +08:00
|
|
|
case 2:
|
1992-02-22 09:46:16 +08:00
|
|
|
return lookup_fundamental_type (current_objfile, FT_CHAR);
|
1991-11-12 23:24:56 +08:00
|
|
|
case 3:
|
1992-02-22 09:46:16 +08:00
|
|
|
return lookup_fundamental_type (current_objfile, FT_SHORT);
|
1991-11-12 23:24:56 +08:00
|
|
|
case 4:
|
1992-02-22 09:46:16 +08:00
|
|
|
return lookup_fundamental_type (current_objfile, FT_LONG);
|
1991-11-12 23:24:56 +08:00
|
|
|
case 5:
|
1992-02-22 09:46:16 +08:00
|
|
|
return lookup_fundamental_type (current_objfile, FT_UNSIGNED_CHAR);
|
1991-11-12 23:24:56 +08:00
|
|
|
case 6:
|
1992-02-22 09:46:16 +08:00
|
|
|
return lookup_fundamental_type (current_objfile, FT_SIGNED_CHAR);
|
1991-11-12 23:24:56 +08:00
|
|
|
case 7:
|
1992-02-22 09:46:16 +08:00
|
|
|
return lookup_fundamental_type (current_objfile, FT_UNSIGNED_SHORT);
|
1991-11-12 23:24:56 +08:00
|
|
|
case 8:
|
1992-02-22 09:46:16 +08:00
|
|
|
return lookup_fundamental_type (current_objfile, FT_UNSIGNED_INTEGER);
|
1991-11-12 23:24:56 +08:00
|
|
|
case 9:
|
1992-02-22 09:46:16 +08:00
|
|
|
return lookup_fundamental_type (current_objfile, FT_UNSIGNED_INTEGER);
|
1991-11-12 23:24:56 +08:00
|
|
|
case 10:
|
1992-02-22 09:46:16 +08:00
|
|
|
return lookup_fundamental_type (current_objfile, FT_UNSIGNED_LONG);
|
1991-11-12 23:24:56 +08:00
|
|
|
case 11:
|
1992-02-22 09:46:16 +08:00
|
|
|
return lookup_fundamental_type (current_objfile, FT_VOID);
|
1991-11-12 23:24:56 +08:00
|
|
|
case 12:
|
1992-02-22 09:46:16 +08:00
|
|
|
return lookup_fundamental_type (current_objfile, FT_FLOAT);
|
1991-11-12 23:24:56 +08:00
|
|
|
case 13:
|
1992-02-22 09:46:16 +08:00
|
|
|
return lookup_fundamental_type (current_objfile, FT_DBL_PREC_FLOAT);
|
1991-11-12 23:24:56 +08:00
|
|
|
case 14:
|
1992-02-22 09:46:16 +08:00
|
|
|
return lookup_fundamental_type (current_objfile, FT_EXT_PREC_FLOAT);
|
1991-11-12 23:24:56 +08:00
|
|
|
case 15:
|
1992-02-22 09:46:16 +08:00
|
|
|
/* requires a builtin `integer' */
|
|
|
|
return lookup_fundamental_type (current_objfile, FT_INTEGER);
|
1991-11-12 23:24:56 +08:00
|
|
|
case 16:
|
1992-02-22 09:46:16 +08:00
|
|
|
return lookup_fundamental_type (current_objfile, FT_BOOLEAN);
|
1991-11-12 23:24:56 +08:00
|
|
|
case 17:
|
1992-02-22 09:46:16 +08:00
|
|
|
/* requires builtin `short real' */
|
|
|
|
return lookup_fundamental_type (current_objfile, FT_FLOAT);
|
1991-11-12 23:24:56 +08:00
|
|
|
case 18:
|
1992-02-22 09:46:16 +08:00
|
|
|
/* requires builtin `real' */
|
|
|
|
return lookup_fundamental_type (current_objfile, FT_FLOAT);
|
1991-11-12 23:24:56 +08:00
|
|
|
default :
|
|
|
|
printf ("ERROR! Unknown builtin type -%d\n", typenums[1]);
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
#if 0 /* Seems to be unused, don't bother converting from old misc function
|
|
|
|
vector usage to new minimal symbol tables. FIXME: Delete this? */
|
|
|
|
|
1991-11-12 23:24:56 +08:00
|
|
|
/* if we now nothing about a function but its address, make a function symbol
|
|
|
|
out of it with the limited knowladge you have. This will be used when
|
|
|
|
somebody refers to a function, which doesn't exist in the symbol table,
|
1992-02-22 09:46:16 +08:00
|
|
|
but is in the minimal symbol table. */
|
1991-11-12 23:24:56 +08:00
|
|
|
|
|
|
|
struct symbol *
|
1992-02-22 09:46:16 +08:00
|
|
|
build_function_symbol (ind, objfile)
|
1991-11-12 23:24:56 +08:00
|
|
|
int ind;
|
1992-02-22 09:46:16 +08:00
|
|
|
struct objfile *objfile;
|
1991-11-12 23:24:56 +08:00
|
|
|
{
|
|
|
|
struct symbol *sym =
|
1992-02-22 09:46:16 +08:00
|
|
|
(struct symbol *) obstack_alloc (&objfile->symbol_obstack, sizeof (struct symbol));
|
1991-11-12 23:24:56 +08:00
|
|
|
SYMBOL_NAME (sym) = misc_function_vector[ind].name;
|
|
|
|
/* SYMBOL_VALUE (sym) = misc_function_vector[ind].address; */
|
|
|
|
SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
|
|
|
|
SYMBOL_CLASS (sym) = LOC_BLOCK;
|
1992-02-22 09:46:16 +08:00
|
|
|
SYMBOL_TYPE (sym) = lookup_function_type (lookup_fundamental_type (current_objfile, FT_INTEGER));
|
1991-11-12 23:24:56 +08:00
|
|
|
SYMBOL_BLOCK_VALUE (sym) = (struct block *)
|
1992-02-22 09:46:16 +08:00
|
|
|
obstack_alloc (&objfile->symbol_obstack, sizeof (struct block));
|
1991-11-12 23:24:56 +08:00
|
|
|
BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) = misc_function_vector[ind].address;
|
|
|
|
return sym;
|
|
|
|
}
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
#endif
|
1991-11-12 23:24:56 +08:00
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
static void
|
1991-11-12 23:24:56 +08:00
|
|
|
aixcoff_new_init ()
|
|
|
|
{
|
|
|
|
/* Nothin' to do. */
|
|
|
|
}
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
static void
|
1991-11-12 23:24:56 +08:00
|
|
|
aixcoff_symfile_init (sf)
|
|
|
|
struct sym_fns *sf;
|
|
|
|
{
|
|
|
|
bfd *abfd = sf->sym_bfd;
|
|
|
|
|
|
|
|
/* Allocate struct to keep track of the symfile */
|
|
|
|
/* FIXME memory leak */
|
|
|
|
sf->sym_private = xmalloc(sizeof (struct coff_symfile_info));
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Save startup file's range of PC addresses to help
|
|
|
|
* blockframe.c decide where the bottom of the stack is.
|
|
|
|
*/
|
|
|
|
if (bfd_get_file_flags(abfd) & EXEC_P) {
|
|
|
|
entry_point = bfd_get_start_address(abfd);
|
|
|
|
} else {
|
|
|
|
entry_point = ~0;
|
|
|
|
/* set the startup file to be an empty range. */
|
|
|
|
startup_file_start = 0;
|
|
|
|
startup_file_end = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
1992-02-22 09:46:16 +08:00
|
|
|
init_stringtab(abfd, offset, objfile)
|
1991-11-12 23:24:56 +08:00
|
|
|
bfd *abfd;
|
|
|
|
long offset;
|
1992-02-22 09:46:16 +08:00
|
|
|
struct objfile *objfile;
|
1991-11-12 23:24:56 +08:00
|
|
|
{
|
|
|
|
long length;
|
|
|
|
int val;
|
|
|
|
unsigned char lengthbuf[4];
|
|
|
|
|
|
|
|
if (bfd_seek(abfd, offset, 0) < 0)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
val = bfd_read((char *)lengthbuf, 1, sizeof lengthbuf, abfd);
|
|
|
|
length = bfd_h_get_32(abfd, lengthbuf);
|
|
|
|
|
|
|
|
/* If no string table is needed, then the file may end immediately
|
|
|
|
after the symbols. Just return with `strtbl' set to null. */
|
|
|
|
|
|
|
|
if (val != sizeof length || length < sizeof length)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
/* Allocate string table from symbol_obstack. We will need this table
|
|
|
|
as long as we have its symbol table around. */
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
strtbl = (char*) obstack_alloc (&objfile->symbol_obstack, length);
|
1991-11-12 23:24:56 +08:00
|
|
|
if (strtbl == NULL)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
bcopy(&length, strtbl, sizeof length);
|
|
|
|
if (length == sizeof length)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
val = bfd_read(strtbl + sizeof length, 1, length - sizeof length, abfd);
|
|
|
|
|
|
|
|
if (val != length - sizeof length || strtbl[length - 1] != '\0')
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
init_debugsection(abfd)
|
|
|
|
bfd *abfd;
|
|
|
|
{
|
|
|
|
register sec_ptr secp;
|
|
|
|
bfd_size_type length;
|
|
|
|
|
|
|
|
if (debugsec) {
|
|
|
|
free(debugsec);
|
|
|
|
debugsec = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
secp = bfd_get_section_by_name(abfd, ".debug");
|
|
|
|
if (!secp)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if (!(length = bfd_section_size(abfd, secp)))
|
|
|
|
return 0;
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
debugsec = (char *) xmalloc ((unsigned)length);
|
1991-11-12 23:24:56 +08:00
|
|
|
if (debugsec == NULL)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
if (!bfd_get_section_contents(abfd, secp, debugsec, (file_ptr) 0, length)) {
|
|
|
|
printf ("Can't read .debug section from symbol file\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
free_debugsection()
|
|
|
|
{
|
|
|
|
if (debugsec)
|
|
|
|
free(debugsec);
|
|
|
|
debugsec = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* aixcoff version of symbol file read. */
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
static void
|
1991-11-12 23:24:56 +08:00
|
|
|
aixcoff_symfile_read (sf, addr, mainline)
|
|
|
|
struct sym_fns *sf;
|
|
|
|
CORE_ADDR addr;
|
|
|
|
int mainline;
|
|
|
|
{
|
|
|
|
int num_symbols; /* # of symbols */
|
|
|
|
int symtab_offset; /* symbol table and */
|
|
|
|
int stringtab_offset; /* string table file offsets */
|
|
|
|
int val;
|
|
|
|
bfd *abfd;
|
|
|
|
struct coff_symfile_info *info = (void*) sf->sym_private;
|
|
|
|
char *name;
|
|
|
|
|
|
|
|
symfile_bfd = abfd = sf->objfile->obfd;
|
|
|
|
name = sf->objfile->name;
|
|
|
|
|
|
|
|
num_symbols = bfd_get_symcount (abfd); /* # of symbols */
|
|
|
|
symtab_offset = obj_sym_filepos (abfd); /* symbol table file offset */
|
|
|
|
stringtab_offset = symtab_offset +
|
|
|
|
num_symbols * coff_data(abfd)->local_symesz;
|
|
|
|
|
|
|
|
info->min_lineno_offset = 0;
|
|
|
|
info->max_lineno_offset = 0;
|
|
|
|
bfd_map_over_sections (abfd, find_linenos, info);
|
|
|
|
|
|
|
|
/* FIXME! This stuff should move into symfile_init */
|
|
|
|
if (info->min_lineno_offset != 0
|
|
|
|
&& info->max_lineno_offset > info->min_lineno_offset) {
|
|
|
|
|
|
|
|
/* only read in the line # table if one exists */
|
|
|
|
val = init_lineno(abfd, info->min_lineno_offset,
|
|
|
|
info->max_lineno_offset - info->min_lineno_offset);
|
|
|
|
|
|
|
|
if (val < 0)
|
|
|
|
error("\"%s\": error reading line numbers\n", name);
|
|
|
|
}
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
val = init_stringtab(abfd, stringtab_offset, sf->objfile);
|
1991-11-12 23:24:56 +08:00
|
|
|
if (val < 0) {
|
|
|
|
error ("\"%s\": can't get string table", name);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (init_debugsection(abfd) < 0) {
|
|
|
|
error ("Error reading .debug section of `%s'\n", name);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Position to read the symbol table. Do not read it all at once. */
|
|
|
|
val = bfd_seek(abfd, (long)symtab_offset, 0);
|
|
|
|
if (val < 0)
|
|
|
|
perror_with_name(name);
|
|
|
|
|
|
|
|
if (bfd_tell(abfd) != symtab_offset)
|
|
|
|
fatal("bfd? BFD!");
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
init_minimal_symbol_collection ();
|
|
|
|
make_cleanup (discard_minimal_symbols, 0);
|
1991-11-12 23:24:56 +08:00
|
|
|
|
|
|
|
#ifdef XCOFF_INIT_LOADINFO
|
|
|
|
if (mainline)
|
|
|
|
XCOFF_INIT_LOADINFO ();
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/* Now that the executable file is positioned at symbol table,
|
|
|
|
process it and define symbols accordingly. */
|
|
|
|
|
|
|
|
read_xcoff_symtab(sf->objfile, num_symbols);
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
make_cleanup (free_debugsection, 0);
|
1991-11-12 23:24:56 +08:00
|
|
|
|
|
|
|
/* Sort symbols alphabetically within each block. */
|
|
|
|
sort_syms ();
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
/* Install any minimal symbols that have been collected as the current
|
|
|
|
minimal symbols for this objfile. */
|
|
|
|
|
|
|
|
install_minimal_symbols (!mainline, sf -> objfile);
|
1991-11-12 23:24:56 +08:00
|
|
|
|
|
|
|
/* Make a default for file to list. */
|
|
|
|
select_source_symtab (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Register our ability to parse symbols for aixcoff BFD files. */
|
|
|
|
|
|
|
|
static struct sym_fns aixcoff_sym_fns =
|
|
|
|
{
|
|
|
|
"aixcoff-rs6000", 15,
|
|
|
|
aixcoff_new_init, aixcoff_symfile_init,
|
|
|
|
aixcoff_symfile_read,
|
|
|
|
};
|
|
|
|
|
|
|
|
void
|
|
|
|
_initialize_xcoffread ()
|
|
|
|
{
|
|
|
|
add_symtab_fns(&aixcoff_sym_fns);
|
|
|
|
}
|