* rdcoff.c: New file.
* rddbg.c (read_debugging_info): Read COFF symbols if COFF flavour and no stabs were found. * budbg.h (parse_coff): Declare. * Makefile.in: Rebuild dependencies. (CFILES): Add rdcoff.c. (DEBUG_OBJS): Add rdcoff.o.
This commit is contained in:
Ian Lance Taylor
parent
a2d914e15e
commit
f32fb3fd1f
5 changed files with 921 additions and 14 deletions
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@ -78,6 +78,7 @@ objdump.c
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prdbg.c
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ranlib.1
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ranlib.sh
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rdcoff.c
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rddbg.c
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sanity.sh
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size.1
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@ -1,3 +1,13 @@
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Tue Apr 16 13:50:22 1996 Ian Lance Taylor <ian@cygnus.com>
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* rdcoff.c: New file.
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* rddbg.c (read_debugging_info): Read COFF symbols if COFF flavour
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and no stabs were found.
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* budbg.h (parse_coff): Declare.
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* Makefile.in: Rebuild dependencies.
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(CFILES): Add rdcoff.c.
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(DEBUG_OBJS): Add rdcoff.o.
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Mon Apr 15 15:55:01 1996 Doug Evans <dje@canuck.cygnus.com>
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* nlmconv.c (choose_temp_base{,_try}): Delete, in libiberty now.
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@ -136,8 +136,8 @@ GENERATED_HFILES = arparse.h sysroff.h sysinfo.h defparse.h
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CFILES = ar.c arsup.c bucomm.c coffdump.c coffgrok.c debug.c dlltool.c \
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filemode.c ieee.c is-ranlib.c is-strip.c maybe-ranlib.c \
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maybe-strip.c nlmconv.c nm.c not-ranlib.c not-strip.c \
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objcopy.c objdump.c prdbg.c rddbg.c size.c srconv.c stabs.c \
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strings.c sysdump.c version.c
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objcopy.c objdump.c prdbg.c rdcoff.c rddbg.c size.c srconv.c \
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stabs.c strings.c sysdump.c version.c wrstabs.c
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GENERATED_CFILES = \
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underscore.c arparse.c arlex.c sysroff.c sysinfo.c syslex.c \
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@ -146,7 +146,8 @@ GENERATED_CFILES = \
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.c.o:
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$(CC) -c $(ALL_CFLAGS) $<
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DEBUG_OBJS = rddbg.o debug.o stabs.o ieee.o
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DEBUG_OBJS = rddbg.o debug.o stabs.o ieee.o rdcoff.o
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WRITE_DEBUG_OBJS = $(DEBUG_OBJS) wrstabs.o
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LIBIBERTY = ../libiberty/libiberty.a
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@ -248,20 +249,23 @@ dvi: binutils.dvi
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$(SIZE_PROG): $(ADDL_DEPS) size.o
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$(CC) $(HLDFLAGS) $(CFLAGS) $(LDFLAGS) -o $(SIZE_PROG) size.o $(ADDL_LIBS) $(EXTRALIBS)
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$(OBJCOPY_PROG): $(ADDL_DEPS) objcopy.o not-strip.o $(DEBUG_OBJS)
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$(CC) $(HLDFLAGS) $(CFLAGS) $(LDFLAGS) -o $(OBJCOPY_PROG) objcopy.o not-strip.o $(DEBUG_OBJS) $(ADDL_LIBS) $(EXTRALIBS)
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$(OBJCOPY_PROG): $(ADDL_DEPS) objcopy.o not-strip.o $(WRITE_DEBUG_OBJS)
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$(CC) $(HLDFLAGS) $(CFLAGS) $(LDFLAGS) -o $(OBJCOPY_PROG) objcopy.o not-strip.o $(WRITE_DEBUG_OBJS) $(ADDL_LIBS) $(EXTRALIBS)
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$(STRINGS_PROG): $(ADDL_DEPS) strings.o
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$(CC) $(HLDFLAGS) $(CFLAGS) $(LDFLAGS) -o $(STRINGS_PROG) strings.o $(ADDL_LIBS) $(EXTRALIBS)
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$(STRIP_PROG): $(ADDL_DEPS) objcopy.o is-strip.o $(DEBUG_OBJS)
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$(CC) $(HLDFLAGS) $(CFLAGS) $(LDFLAGS) -o $(STRIP_PROG) objcopy.o is-strip.o $(DEBUG_OBJS) $(ADDL_LIBS) $(EXTRALIBS)
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$(STRIP_PROG): $(ADDL_DEPS) objcopy.o is-strip.o $(WRITE_DEBUG_OBJS)
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$(CC) $(HLDFLAGS) $(CFLAGS) $(LDFLAGS) -o $(STRIP_PROG) objcopy.o is-strip.o $(WRITE_DEBUG_OBJS) $(ADDL_LIBS) $(EXTRALIBS)
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$(NM_PROG): $(ADDL_DEPS) nm.o
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$(CC) $(HLDFLAGS) $(CFLAGS) $(LDFLAGS) -o $(NM_PROG) nm.o $(ADDL_LIBS) $(EXTRALIBS)
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#libbfd is searched twice here ($(BFDLIB) and $(ADDL_LIBS)) because when a
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#shared libbfd is built with --enable-commonbfdlib, all of libopcodes is
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#available in libbfd.so and we don't want to link anything from libopcodes.a
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$(OBJDUMP_PROG): $(ADDL_DEPS) objdump.o prdbg.o $(DEBUG_OBJS) $(OPCODES_DEP)
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$(CC) $(HLDFLAGS) $(CFLAGS) $(LDFLAGS) -o $(OBJDUMP_PROG) objdump.o prdbg.o $(DEBUG_OBJS) $(OPCODES) $(ADDL_LIBS) $(EXTRALIBS)
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$(CC) $(HLDFLAGS) $(CFLAGS) $(LDFLAGS) -o $(OBJDUMP_PROG) objdump.o prdbg.o $(DEBUG_OBJS) $(BFDLIB) $(OPCODES) $(ADDL_LIBS) $(EXTRALIBS)
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underscore.c: stamp-under ; @true
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@ -694,11 +698,15 @@ objcopy.o: objcopy.c ../bfd/bfd.h $(INCDIR)/ansidecl.h \
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objdump.o: objdump.c ../bfd/bfd.h $(INCDIR)/ansidecl.h \
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$(INCDIR)/obstack.h $(INCDIR)/getopt.h $(INCDIR)/progress.h \
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bucomm.h config.h $(INCDIR)/fopen-same.h $(INCDIR)/dis-asm.h \
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$(INCDIR)/libiberty.h debug.h budbg.h $(INCDIR)/aout/aout64.h \
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$(INCDIR)/aout/stab.def
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$(INCDIR)/libiberty.h debug.h budbg.h $(INCDIR)/aout/aout64.h
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prdbg.o: prdbg.c ../bfd/bfd.h $(INCDIR)/ansidecl.h \
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$(INCDIR)/obstack.h bucomm.h config.h $(INCDIR)/fopen-same.h \
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$(INCDIR)/libiberty.h debug.h budbg.h
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rdcoff.o: rdcoff.c ../bfd/bfd.h $(INCDIR)/ansidecl.h \
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$(INCDIR)/obstack.h $(INCDIR)/coff/internal.h bucomm.h \
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config.h $(INCDIR)/fopen-same.h $(INCDIR)/libiberty.h \
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$(INCDIR)/demangle.h debug.h budbg.h ../bfd/libcoff.h \
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$(INCDIR)/bfdlink.h
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rddbg.o: rddbg.c ../bfd/bfd.h $(INCDIR)/ansidecl.h \
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$(INCDIR)/obstack.h bucomm.h config.h $(INCDIR)/fopen-same.h \
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$(INCDIR)/libiberty.h debug.h budbg.h
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@ -710,8 +718,9 @@ srconv.o: srconv.c bucomm.h config.h $(INCDIR)/fopen-same.h \
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$(INCDIR)/bfdlink.h sysroff.c
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stabs.o: stabs.c ../bfd/bfd.h $(INCDIR)/ansidecl.h \
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$(INCDIR)/obstack.h bucomm.h config.h $(INCDIR)/fopen-same.h \
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$(INCDIR)/libiberty.h debug.h budbg.h $(INCDIR)/aout/aout64.h \
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$(INCDIR)/aout/stab_gnu.h $(INCDIR)/aout/stab.def
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$(INCDIR)/libiberty.h $(INCDIR)/demangle.h debug.h \
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budbg.h $(INCDIR)/aout/aout64.h $(INCDIR)/aout/stab_gnu.h \
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$(INCDIR)/aout/stab.def
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strings.o: strings.c ../bfd/bfd.h $(INCDIR)/ansidecl.h \
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$(INCDIR)/obstack.h bucomm.h config.h $(INCDIR)/fopen-same.h \
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$(INCDIR)/libiberty.h
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@ -719,6 +728,10 @@ sysdump.o: sysdump.c ../bfd/bfd.h $(INCDIR)/ansidecl.h \
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$(INCDIR)/obstack.h bucomm.h config.h $(INCDIR)/fopen-same.h \
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sysroff.h sysroff.c
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version.o: version.c
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wrstabs.o: wrstabs.c ../bfd/bfd.h $(INCDIR)/ansidecl.h \
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$(INCDIR)/obstack.h bucomm.h config.h $(INCDIR)/fopen-same.h \
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$(INCDIR)/libiberty.h debug.h budbg.h $(INCDIR)/aout/aout64.h \
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$(INCDIR)/aout/stab_gnu.h $(INCDIR)/aout/stab.def
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underscore.o: underscore.c
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arparse.o: arparse.c ../bfd/bfd.h $(INCDIR)/ansidecl.h \
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$(INCDIR)/obstack.h bucomm.h config.h $(INCDIR)/fopen-same.h \
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874
binutils/rdcoff.c
Normal file
874
binutils/rdcoff.c
Normal file
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@ -0,0 +1,874 @@
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/* stabs.c -- Parse COFF debugging information
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Copyright (C) 1996 Free Software Foundation, Inc.
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Written by Ian Lance Taylor <ian@cygnus.com>.
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This file is part of GNU Binutils.
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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., 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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/* This file contains code which parses COFF debugging information. */
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#include "bfd.h"
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#include "coff/internal.h"
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#include "bucomm.h"
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#include "libiberty.h"
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#include "demangle.h"
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#include "debug.h"
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#include "budbg.h"
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/* FIXME: We should not need this BFD internal file. We need it for
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the N_BTMASK, etc., values. */
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#include "libcoff.h"
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/* These macros extract the right mask and shifts for this BFD. They
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assume that there is a local variable named ABFD. This is so that
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macros like ISFCN and DECREF, from coff/internal.h, will work
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without modification. */
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#define N_BTMASK (coff_data (abfd)->local_n_btmask)
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#define N_BTSHFT (coff_data (abfd)->local_n_btshft)
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#define N_TMASK (coff_data (abfd)->local_n_tmask)
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#define N_TSHIFT (coff_data (abfd)->local_n_tshift)
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/* This structure is used to hold the symbols, as well as the current
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location within the symbols. */
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struct coff_symbols
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{
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/* The symbols. */
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asymbol **syms;
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/* The number of symbols. */
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long symcount;
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/* The index of the current symbol. */
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long symno;
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/* The index of the current symbol in the COFF symbol table (where
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each auxent counts as a symbol). */
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long coff_symno;
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};
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/* The largest basic type we are prepared to handle. */
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#define T_MAX (T_LNGDBL)
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/* This structure is used to hold slots. */
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struct coff_slots
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{
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/* Next set of slots. */
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struct coff_slots *next;
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/* Slots. */
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#define COFF_SLOTS (16)
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debug_type slots[COFF_SLOTS];
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};
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/* This structure is used to map symbol indices to types. */
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struct coff_types
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{
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/* Slots. */
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struct coff_slots *slots;
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/* Basic types. */
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debug_type basic[T_MAX + 1];
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};
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static debug_type *coff_get_slot PARAMS ((struct coff_types *, int));
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static debug_type parse_coff_type
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PARAMS ((bfd *, struct coff_symbols *, struct coff_types *, long, int,
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union internal_auxent *, boolean, PTR));
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static debug_type parse_coff_base_type
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PARAMS ((bfd *, struct coff_symbols *, struct coff_types *, long, int,
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union internal_auxent *, PTR));
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static debug_type parse_coff_struct_type
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PARAMS ((bfd *, struct coff_symbols *, struct coff_types *, int,
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union internal_auxent *, PTR));
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static debug_type parse_coff_enum_type
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PARAMS ((bfd *, struct coff_symbols *, struct coff_types *,
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union internal_auxent *, PTR));
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static boolean parse_coff_symbol
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PARAMS ((bfd *, struct coff_types *, asymbol *, long,
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struct internal_syment *, PTR, debug_type, boolean));
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/* Return the slot for a type. */
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static debug_type *
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coff_get_slot (types, indx)
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struct coff_types *types;
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||||
int indx;
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{
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struct coff_slots **pps;
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pps = &types->slots;
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||||
|
||||
while (indx >= COFF_SLOTS)
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||||
{
|
||||
if (*pps == NULL)
|
||||
{
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*pps = (struct coff_slots *) xmalloc (sizeof **pps);
|
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memset (*pps, 0, sizeof **pps);
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||||
}
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pps = &(*pps)->next;
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indx -= COFF_SLOTS;
|
||||
}
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||||
|
||||
if (*pps == NULL)
|
||||
{
|
||||
*pps = (struct coff_slots *) xmalloc (sizeof **pps);
|
||||
memset (*pps, 0, sizeof **pps);
|
||||
}
|
||||
|
||||
return (*pps)->slots + indx;
|
||||
}
|
||||
|
||||
/* Parse a COFF type code in NTYPE. */
|
||||
|
||||
static debug_type
|
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parse_coff_type (abfd, symbols, types, coff_symno, ntype, pauxent, useaux,
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dhandle)
|
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bfd *abfd;
|
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struct coff_symbols *symbols;
|
||||
struct coff_types *types;
|
||||
long coff_symno;
|
||||
int ntype;
|
||||
union internal_auxent *pauxent;
|
||||
boolean useaux;
|
||||
PTR dhandle;
|
||||
{
|
||||
debug_type type;
|
||||
|
||||
if ((ntype & ~N_BTMASK) != 0)
|
||||
{
|
||||
int newtype;
|
||||
|
||||
newtype = DECREF (ntype);
|
||||
|
||||
if (ISPTR (ntype))
|
||||
{
|
||||
type = parse_coff_type (abfd, symbols, types, coff_symno, newtype,
|
||||
pauxent, useaux, dhandle);
|
||||
type = debug_make_pointer_type (dhandle, type);
|
||||
}
|
||||
else if (ISFCN (ntype))
|
||||
{
|
||||
type = parse_coff_type (abfd, symbols, types, coff_symno, newtype,
|
||||
pauxent, useaux, dhandle);
|
||||
type = debug_make_function_type (dhandle, type, (debug_type *) NULL,
|
||||
false);
|
||||
}
|
||||
else if (ISARY (ntype))
|
||||
{
|
||||
int n;
|
||||
|
||||
if (pauxent == NULL)
|
||||
n = 0;
|
||||
else
|
||||
{
|
||||
unsigned short *dim;
|
||||
int i;
|
||||
|
||||
/* FIXME: If pauxent->x_sym.x_tagndx.l == 0, gdb sets
|
||||
the c_naux field of the syment to 0. */
|
||||
|
||||
/* Move the dimensions down, so that the next array
|
||||
picks up the next one. */
|
||||
dim = pauxent->x_sym.x_fcnary.x_ary.x_dimen;
|
||||
n = dim[0];
|
||||
for (i = 0; *dim != 0 && i < DIMNUM - 1; i++, dim++)
|
||||
*dim = *(dim + 1);
|
||||
*dim = 0;
|
||||
}
|
||||
|
||||
type = parse_coff_type (abfd, symbols, types, coff_symno, newtype,
|
||||
pauxent, false, dhandle);
|
||||
type = debug_make_array_type (dhandle, type,
|
||||
parse_coff_base_type (abfd, symbols,
|
||||
types,
|
||||
coff_symno,
|
||||
T_INT,
|
||||
NULL, dhandle),
|
||||
0, n - 1, false);
|
||||
}
|
||||
|
||||
return type;
|
||||
}
|
||||
|
||||
if (pauxent != NULL && pauxent->x_sym.x_tagndx.l > 0)
|
||||
{
|
||||
debug_type *slot;
|
||||
|
||||
/* This is a reference to an existing type. FIXME: gdb checks
|
||||
that the class is not C_STRTAG, nor C_UNTAG, nor C_ENTAG. */
|
||||
slot = coff_get_slot (types, pauxent->x_sym.x_tagndx.l);
|
||||
if (*slot != DEBUG_TYPE_NULL)
|
||||
return *slot;
|
||||
else
|
||||
return debug_make_indirect_type (dhandle, slot, (const char *) NULL);
|
||||
}
|
||||
|
||||
/* If the aux entry has already been used for something, useaux will
|
||||
have been set to false, indicating that parse_coff_base_type
|
||||
should not use it. We need to do it this way, rather than simply
|
||||
passing pauxent as NULL, because we need to be able handle
|
||||
multiple array dimensions while still discarding pauxent after
|
||||
having handled all of them. */
|
||||
if (! useaux)
|
||||
pauxent = NULL;
|
||||
|
||||
return parse_coff_base_type (abfd, symbols, types, coff_symno, ntype,
|
||||
pauxent, dhandle);
|
||||
}
|
||||
|
||||
/* Parse a basic COFF type in NTYPE. */
|
||||
|
||||
static debug_type
|
||||
parse_coff_base_type (abfd, symbols, types, coff_symno, ntype, pauxent,
|
||||
dhandle)
|
||||
bfd *abfd;
|
||||
struct coff_symbols *symbols;
|
||||
struct coff_types *types;
|
||||
long coff_symno;
|
||||
int ntype;
|
||||
union internal_auxent *pauxent;
|
||||
PTR dhandle;
|
||||
{
|
||||
debug_type ret;
|
||||
boolean set_basic;
|
||||
const char *name;
|
||||
debug_type *slot;
|
||||
|
||||
if (ntype >= 0
|
||||
&& ntype <= T_MAX
|
||||
&& types->basic[ntype] != DEBUG_TYPE_NULL)
|
||||
return types->basic[ntype];
|
||||
|
||||
set_basic = true;
|
||||
name = NULL;
|
||||
|
||||
switch (ntype)
|
||||
{
|
||||
default:
|
||||
ret = debug_make_void_type (dhandle);
|
||||
break;
|
||||
|
||||
case T_NULL:
|
||||
case T_VOID:
|
||||
ret = debug_make_void_type (dhandle);
|
||||
name = "void";
|
||||
break;
|
||||
|
||||
case T_CHAR:
|
||||
ret = debug_make_int_type (dhandle, 1, false);
|
||||
name = "char";
|
||||
break;
|
||||
|
||||
case T_SHORT:
|
||||
ret = debug_make_int_type (dhandle, 2, false);
|
||||
name = "short";
|
||||
break;
|
||||
|
||||
case T_INT:
|
||||
/* FIXME: Perhaps the size should depend upon the architecture. */
|
||||
ret = debug_make_int_type (dhandle, 4, false);
|
||||
name = "int";
|
||||
break;
|
||||
|
||||
case T_LONG:
|
||||
ret = debug_make_int_type (dhandle, 4, false);
|
||||
name = "long";
|
||||
break;
|
||||
|
||||
case T_FLOAT:
|
||||
ret = debug_make_float_type (dhandle, 4);
|
||||
name = "float";
|
||||
break;
|
||||
|
||||
case T_DOUBLE:
|
||||
ret = debug_make_float_type (dhandle, 8);
|
||||
name = "double";
|
||||
break;
|
||||
|
||||
case T_LNGDBL:
|
||||
ret = debug_make_float_type (dhandle, 12);
|
||||
name = "long double";
|
||||
break;
|
||||
|
||||
case T_UCHAR:
|
||||
ret = debug_make_int_type (dhandle, 1, true);
|
||||
name = "unsigned char";
|
||||
break;
|
||||
|
||||
case T_USHORT:
|
||||
ret = debug_make_int_type (dhandle, 2, true);
|
||||
name = "unsigned short";
|
||||
break;
|
||||
|
||||
case T_UINT:
|
||||
ret = debug_make_int_type (dhandle, 4, true);
|
||||
name = "unsigned int";
|
||||
break;
|
||||
|
||||
case T_ULONG:
|
||||
ret = debug_make_int_type (dhandle, 4, true);
|
||||
name = "unsigned long";
|
||||
break;
|
||||
|
||||
case T_STRUCT:
|
||||
if (pauxent == NULL)
|
||||
ret = debug_make_struct_type (dhandle, true, 0,
|
||||
(debug_field *) NULL);
|
||||
else
|
||||
ret = parse_coff_struct_type (abfd, symbols, types, ntype, pauxent,
|
||||
dhandle);
|
||||
|
||||
slot = coff_get_slot (types, coff_symno);
|
||||
*slot = ret;
|
||||
|
||||
set_basic = false;
|
||||
break;
|
||||
|
||||
case T_UNION:
|
||||
if (pauxent == NULL)
|
||||
ret = debug_make_struct_type (dhandle, false, 0, (debug_field *) NULL);
|
||||
else
|
||||
ret = parse_coff_struct_type (abfd, symbols, types, ntype, pauxent,
|
||||
dhandle);
|
||||
|
||||
slot = coff_get_slot (types, coff_symno);
|
||||
*slot = ret;
|
||||
|
||||
set_basic = false;
|
||||
break;
|
||||
|
||||
case T_ENUM:
|
||||
if (pauxent == NULL)
|
||||
ret = debug_make_enum_type (dhandle, (const char **) NULL,
|
||||
(bfd_signed_vma *) NULL);
|
||||
else
|
||||
ret = parse_coff_enum_type (abfd, symbols, types, pauxent, dhandle);
|
||||
|
||||
slot = coff_get_slot (types, coff_symno);
|
||||
*slot = ret;
|
||||
|
||||
set_basic = false;
|
||||
break;
|
||||
}
|
||||
|
||||
if (name != NULL)
|
||||
ret = debug_name_type (dhandle, name, ret);
|
||||
|
||||
if (set_basic
|
||||
&& ntype >= 0
|
||||
&& ntype <= T_MAX)
|
||||
types->basic[ntype] = ret;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Parse a struct type. */
|
||||
|
||||
static debug_type
|
||||
parse_coff_struct_type (abfd, symbols, types, ntype, pauxent, dhandle)
|
||||
bfd *abfd;
|
||||
struct coff_symbols *symbols;
|
||||
struct coff_types *types;
|
||||
int ntype;
|
||||
union internal_auxent *pauxent;
|
||||
PTR dhandle;
|
||||
{
|
||||
long symend;
|
||||
int alloc;
|
||||
debug_field *fields;
|
||||
int count;
|
||||
boolean done;
|
||||
|
||||
symend = pauxent->x_sym.x_fcnary.x_fcn.x_endndx.l;
|
||||
|
||||
alloc = 10;
|
||||
fields = (debug_field *) xmalloc (alloc * sizeof *fields);
|
||||
count = 0;
|
||||
|
||||
done = false;
|
||||
while (! done
|
||||
&& symbols->coff_symno < symend
|
||||
&& symbols->symno < symbols->symcount)
|
||||
{
|
||||
asymbol *sym;
|
||||
long this_coff_symno;
|
||||
struct internal_syment syment;
|
||||
union internal_auxent auxent;
|
||||
union internal_auxent *psubaux;
|
||||
bfd_vma bitpos = 0, bitsize = 0;
|
||||
|
||||
sym = symbols->syms[symbols->symno];
|
||||
|
||||
if (! bfd_coff_get_syment (abfd, sym, &syment))
|
||||
{
|
||||
fprintf (stderr, "%s: bfd_coff_get_syment failed: %s\n",
|
||||
program_name, bfd_errmsg (bfd_get_error ()));
|
||||
return DEBUG_TYPE_NULL;
|
||||
}
|
||||
|
||||
this_coff_symno = symbols->coff_symno;
|
||||
|
||||
++symbols->symno;
|
||||
symbols->coff_symno += 1 + syment.n_numaux;
|
||||
|
||||
if (syment.n_numaux == 0)
|
||||
psubaux = NULL;
|
||||
else
|
||||
{
|
||||
if (! bfd_coff_get_auxent (abfd, sym, 0, &auxent))
|
||||
{
|
||||
fprintf (stderr, "%s: bfd_coff_get_auxent failed: %s\n",
|
||||
program_name, bfd_errmsg (bfd_get_error ()));
|
||||
return DEBUG_TYPE_NULL;
|
||||
}
|
||||
psubaux = &auxent;
|
||||
}
|
||||
|
||||
switch (syment.n_sclass)
|
||||
{
|
||||
case C_MOS:
|
||||
case C_MOU:
|
||||
bitpos = 8 * bfd_asymbol_value (sym);
|
||||
bitsize = 0;
|
||||
break;
|
||||
|
||||
case C_FIELD:
|
||||
bitpos = bfd_asymbol_value (sym);
|
||||
bitsize = auxent.x_sym.x_misc.x_lnsz.x_size;
|
||||
break;
|
||||
|
||||
case C_EOS:
|
||||
done = true;
|
||||
break;
|
||||
}
|
||||
|
||||
if (! done)
|
||||
{
|
||||
debug_type ftype;
|
||||
debug_field f;
|
||||
|
||||
ftype = parse_coff_type (abfd, symbols, types, this_coff_symno,
|
||||
syment.n_type, psubaux, true, dhandle);
|
||||
f = debug_make_field (dhandle, bfd_asymbol_name (sym), ftype,
|
||||
bitpos, bitsize, DEBUG_VISIBILITY_PUBLIC);
|
||||
if (f == DEBUG_FIELD_NULL)
|
||||
return DEBUG_TYPE_NULL;
|
||||
|
||||
if (count + 1 >= alloc)
|
||||
{
|
||||
alloc += 10;
|
||||
fields = ((debug_field *)
|
||||
xrealloc (fields, alloc * sizeof *fields));
|
||||
}
|
||||
|
||||
fields[count] = f;
|
||||
++count;
|
||||
}
|
||||
}
|
||||
|
||||
fields[count] = DEBUG_FIELD_NULL;
|
||||
|
||||
return debug_make_struct_type (dhandle, ntype == T_STRUCT,
|
||||
pauxent->x_sym.x_misc.x_lnsz.x_size,
|
||||
fields);
|
||||
}
|
||||
|
||||
/* Parse an enum type. */
|
||||
|
||||
static debug_type
|
||||
parse_coff_enum_type (abfd, symbols, types, pauxent, dhandle)
|
||||
bfd *abfd;
|
||||
struct coff_symbols *symbols;
|
||||
struct coff_types *types;
|
||||
union internal_auxent *pauxent;
|
||||
PTR dhandle;
|
||||
{
|
||||
long symend;
|
||||
int alloc;
|
||||
const char **names;
|
||||
bfd_signed_vma *vals;
|
||||
int count;
|
||||
boolean done;
|
||||
|
||||
symend = pauxent->x_sym.x_fcnary.x_fcn.x_endndx.l;
|
||||
|
||||
alloc = 10;
|
||||
names = (const char **) xmalloc (alloc * sizeof *names);
|
||||
vals = (bfd_signed_vma *) xmalloc (alloc * sizeof *vals);
|
||||
count = 0;
|
||||
|
||||
done = false;
|
||||
while (! done
|
||||
&& symbols->coff_symno < symend
|
||||
&& symbols->symno < symbols->symcount)
|
||||
{
|
||||
asymbol *sym;
|
||||
struct internal_syment syment;
|
||||
|
||||
sym = symbols->syms[symbols->symno];
|
||||
|
||||
if (! bfd_coff_get_syment (abfd, sym, &syment))
|
||||
{
|
||||
fprintf (stderr, "%s: bfd_coff_get_syment failed: %s\n",
|
||||
program_name, bfd_errmsg (bfd_get_error ()));
|
||||
return DEBUG_TYPE_NULL;
|
||||
}
|
||||
|
||||
++symbols->symno;
|
||||
symbols->coff_symno += 1 + syment.n_numaux;
|
||||
|
||||
switch (syment.n_sclass)
|
||||
{
|
||||
case C_MOE:
|
||||
if (count + 1 >= alloc)
|
||||
{
|
||||
alloc += 10;
|
||||
names = ((const char **)
|
||||
xrealloc (names, alloc * sizeof *names));
|
||||
vals = ((bfd_signed_vma *)
|
||||
xrealloc (vals, alloc * sizeof *vals));
|
||||
}
|
||||
|
||||
names[count] = bfd_asymbol_name (sym);
|
||||
vals[count] = bfd_asymbol_value (sym);
|
||||
++count;
|
||||
break;
|
||||
|
||||
case C_EOS:
|
||||
done = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
names[count] = NULL;
|
||||
|
||||
return debug_make_enum_type (dhandle, names, vals);
|
||||
}
|
||||
|
||||
/* Handle a single COFF symbol. */
|
||||
|
||||
static boolean
|
||||
parse_coff_symbol (abfd, types, sym, coff_symno, psyment, dhandle, type,
|
||||
within_function)
|
||||
bfd *abfd;
|
||||
struct coff_types *types;
|
||||
asymbol *sym;
|
||||
long coff_symno;
|
||||
struct internal_syment *psyment;
|
||||
PTR dhandle;
|
||||
debug_type type;
|
||||
boolean within_function;
|
||||
{
|
||||
switch (psyment->n_sclass)
|
||||
{
|
||||
case C_NULL:
|
||||
break;
|
||||
|
||||
case C_AUTO:
|
||||
if (! debug_record_variable (dhandle, bfd_asymbol_name (sym), type,
|
||||
DEBUG_LOCAL, bfd_asymbol_value (sym)))
|
||||
return false;
|
||||
break;
|
||||
|
||||
case C_EXT:
|
||||
if (! debug_record_variable (dhandle, bfd_asymbol_name (sym), type,
|
||||
DEBUG_GLOBAL, bfd_asymbol_value (sym)))
|
||||
return false;
|
||||
break;
|
||||
|
||||
case C_STAT:
|
||||
if (! debug_record_variable (dhandle, bfd_asymbol_name (sym), type,
|
||||
(within_function
|
||||
? DEBUG_LOCAL_STATIC
|
||||
: DEBUG_STATIC),
|
||||
bfd_asymbol_value (sym)))
|
||||
return false;
|
||||
break;
|
||||
|
||||
case C_REG:
|
||||
/* FIXME: We may need to convert the register number. */
|
||||
if (! debug_record_variable (dhandle, bfd_asymbol_name (sym), type,
|
||||
DEBUG_REGISTER, bfd_asymbol_value (sym)))
|
||||
return false;
|
||||
break;
|
||||
|
||||
case C_LABEL:
|
||||
break;
|
||||
|
||||
case C_ARG:
|
||||
if (! debug_record_parameter (dhandle, bfd_asymbol_name (sym), type,
|
||||
DEBUG_PARM_STACK, bfd_asymbol_value (sym)))
|
||||
return false;
|
||||
break;
|
||||
|
||||
case C_REGPARM:
|
||||
/* FIXME: We may need to convert the register number. */
|
||||
if (! debug_record_parameter (dhandle, bfd_asymbol_name (sym), type,
|
||||
DEBUG_PARM_REG, bfd_asymbol_value (sym)))
|
||||
return false;
|
||||
break;
|
||||
|
||||
case C_TPDEF:
|
||||
type = debug_name_type (dhandle, bfd_asymbol_name (sym), type);
|
||||
if (type == DEBUG_TYPE_NULL)
|
||||
return false;
|
||||
break;
|
||||
|
||||
case C_STRTAG:
|
||||
case C_UNTAG:
|
||||
case C_ENTAG:
|
||||
{
|
||||
debug_type *slot;
|
||||
|
||||
type = debug_tag_type (dhandle, bfd_asymbol_name (sym), type);
|
||||
if (type == DEBUG_TYPE_NULL)
|
||||
return false;
|
||||
|
||||
/* Store the named type into the slot, so that references get
|
||||
the name. */
|
||||
slot = coff_get_slot (types, coff_symno);
|
||||
*slot = type;
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/* This is the main routine. It looks through all the symbols and
|
||||
handles them. */
|
||||
|
||||
boolean
|
||||
parse_coff (abfd, syms, symcount, dhandle)
|
||||
bfd *abfd;
|
||||
asymbol **syms;
|
||||
long symcount;
|
||||
PTR dhandle;
|
||||
{
|
||||
struct coff_symbols symbols;
|
||||
struct coff_types types;
|
||||
int i;
|
||||
long next_c_file;
|
||||
const char *fnname;
|
||||
int fnclass;
|
||||
int fntype;
|
||||
alent *linenos;
|
||||
boolean within_function;
|
||||
long this_coff_symno;
|
||||
|
||||
symbols.syms = syms;
|
||||
symbols.symcount = symcount;
|
||||
symbols.symno = 0;
|
||||
symbols.coff_symno = 0;
|
||||
|
||||
types.slots = NULL;
|
||||
for (i = 0; i <= T_MAX; i++)
|
||||
types.basic[i] = DEBUG_TYPE_NULL;
|
||||
|
||||
next_c_file = -1;
|
||||
fnname = NULL;
|
||||
fnclass = 0;
|
||||
fntype = 0;
|
||||
linenos = NULL;
|
||||
within_function = false;
|
||||
|
||||
while (symbols.symno < symcount)
|
||||
{
|
||||
asymbol *sym;
|
||||
const char *name;
|
||||
struct internal_syment syment;
|
||||
union internal_auxent auxent;
|
||||
union internal_auxent *paux;
|
||||
debug_type type;
|
||||
|
||||
sym = syms[symbols.symno];
|
||||
|
||||
if (! bfd_coff_get_syment (abfd, sym, &syment))
|
||||
{
|
||||
fprintf (stderr, "%s: bfd_coff_get_syment failed: %s\n",
|
||||
program_name, bfd_errmsg (bfd_get_error ()));
|
||||
return false;
|
||||
}
|
||||
|
||||
name = bfd_asymbol_name (sym);
|
||||
|
||||
this_coff_symno = symbols.coff_symno;
|
||||
|
||||
++symbols.symno;
|
||||
symbols.coff_symno += 1 + syment.n_numaux;
|
||||
|
||||
/* We only worry about the first auxent, because that is the
|
||||
only one which is relevant for debugging information. */
|
||||
if (syment.n_numaux == 0)
|
||||
paux = NULL;
|
||||
else
|
||||
{
|
||||
if (! bfd_coff_get_auxent (abfd, sym, 0, &auxent))
|
||||
{
|
||||
fprintf (stderr, "%s: bfd_coff_get_auxent failed: %s\n",
|
||||
program_name, bfd_errmsg (bfd_get_error ()));
|
||||
return false;
|
||||
}
|
||||
paux = &auxent;
|
||||
}
|
||||
|
||||
if (this_coff_symno == next_c_file && syment.n_sclass != C_FILE)
|
||||
{
|
||||
/* The last C_FILE symbol points to the first external
|
||||
symbol. */
|
||||
if (! debug_set_filename (dhandle, "*globals*"))
|
||||
return false;
|
||||
}
|
||||
|
||||
switch (syment.n_sclass)
|
||||
{
|
||||
case C_EFCN:
|
||||
case C_EXTDEF:
|
||||
case C_ULABEL:
|
||||
case C_USTATIC:
|
||||
case C_LINE:
|
||||
case C_ALIAS:
|
||||
case C_HIDDEN:
|
||||
/* Just ignore these classes. */
|
||||
break;
|
||||
|
||||
case C_FILE:
|
||||
next_c_file = syment.n_value;
|
||||
if (! debug_set_filename (dhandle, name))
|
||||
return false;
|
||||
break;
|
||||
|
||||
case C_STAT:
|
||||
/* Ignore static symbols with a type of T_NULL. These
|
||||
represent section entries. */
|
||||
if (syment.n_type == T_NULL)
|
||||
break;
|
||||
/* Fall through. */
|
||||
case C_EXT:
|
||||
if (ISFCN (syment.n_type))
|
||||
{
|
||||
fnname = name;
|
||||
fnclass = syment.n_sclass;
|
||||
fntype = syment.n_type;
|
||||
linenos = BFD_SEND (abfd, _get_lineno, (abfd, sym));
|
||||
break;
|
||||
}
|
||||
type = parse_coff_type (abfd, &symbols, &types, this_coff_symno,
|
||||
syment.n_type, paux, true, dhandle);
|
||||
if (type == DEBUG_TYPE_NULL)
|
||||
return false;
|
||||
if (! parse_coff_symbol (abfd, &types, sym, this_coff_symno, &syment,
|
||||
dhandle, type, within_function))
|
||||
return false;
|
||||
break;
|
||||
|
||||
case C_FCN:
|
||||
if (strcmp (name, ".bf") == 0)
|
||||
{
|
||||
if (fnname == NULL)
|
||||
{
|
||||
fprintf (stderr, "%s: %ld: .bf without preceding function\n",
|
||||
program_name, this_coff_symno);
|
||||
return false;
|
||||
}
|
||||
|
||||
type = parse_coff_type (abfd, &symbols, &types, this_coff_symno,
|
||||
DECREF (fntype), paux, false, dhandle);
|
||||
if (type == DEBUG_TYPE_NULL)
|
||||
return false;
|
||||
|
||||
if (! debug_record_function (dhandle, fnname, type,
|
||||
fnclass == C_EXT,
|
||||
bfd_asymbol_value (sym)))
|
||||
return false;
|
||||
|
||||
if (linenos != NULL)
|
||||
{
|
||||
int base;
|
||||
bfd_vma addr;
|
||||
|
||||
if (syment.n_numaux == 0)
|
||||
base = 0;
|
||||
else
|
||||
base = auxent.x_sym.x_misc.x_lnsz.x_lnno - 1;
|
||||
|
||||
addr = bfd_get_section_vma (abfd, bfd_get_section (sym));
|
||||
|
||||
++linenos;
|
||||
|
||||
while (linenos->line_number != 0)
|
||||
{
|
||||
if (! debug_record_line (dhandle,
|
||||
linenos->line_number + base,
|
||||
linenos->u.offset + addr))
|
||||
return false;
|
||||
++linenos;
|
||||
}
|
||||
}
|
||||
|
||||
fnname = NULL;
|
||||
linenos = NULL;
|
||||
fnclass = 0;
|
||||
fntype = 0;
|
||||
|
||||
within_function = true;
|
||||
}
|
||||
else if (strcmp (name, ".ef") == 0)
|
||||
{
|
||||
if (! within_function)
|
||||
{
|
||||
fprintf (stderr, "%s: %ld: unexpected .ef\n",
|
||||
program_name, this_coff_symno);
|
||||
return false;
|
||||
}
|
||||
|
||||
if (! debug_end_function (dhandle, bfd_asymbol_value (sym)))
|
||||
return false;
|
||||
|
||||
within_function = false;
|
||||
}
|
||||
break;
|
||||
|
||||
case C_BLOCK:
|
||||
if (strcmp (name, ".bb") == 0)
|
||||
{
|
||||
if (! debug_start_block (dhandle, bfd_asymbol_value (sym)))
|
||||
return false;
|
||||
}
|
||||
else if (strcmp (name, ".eb") == 0)
|
||||
{
|
||||
if (! debug_end_block (dhandle, bfd_asymbol_value (sym)))
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
type = parse_coff_type (abfd, &symbols, &types, this_coff_symno,
|
||||
syment.n_type, paux, true, dhandle);
|
||||
if (type == DEBUG_TYPE_NULL)
|
||||
return false;
|
||||
if (! parse_coff_symbol (abfd, &types, sym, this_coff_symno, &syment,
|
||||
dhandle, type, within_function))
|
||||
return false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
|
@ -54,8 +54,6 @@ read_debugging_info (abfd, syms, symcount)
|
|||
if (dhandle == NULL)
|
||||
return NULL;
|
||||
|
||||
/* All we know about right now is stabs. */
|
||||
|
||||
if (! read_section_stabs_debugging_info (abfd, syms, symcount, dhandle,
|
||||
&found))
|
||||
return NULL;
|
||||
|
|
@ -73,6 +71,17 @@ read_debugging_info (abfd, syms, symcount)
|
|||
return NULL;
|
||||
}
|
||||
|
||||
/* Try reading the COFF symbols if we didn't find any stabs in COFF
|
||||
sections. */
|
||||
if (! found
|
||||
&& bfd_get_flavour (abfd) == bfd_target_coff_flavour
|
||||
&& symcount > 0)
|
||||
{
|
||||
if (! parse_coff (abfd, syms, symcount, dhandle))
|
||||
return NULL;
|
||||
found = true;
|
||||
}
|
||||
|
||||
if (! found)
|
||||
{
|
||||
fprintf (stderr, "%s: no recognized debugging information\n",
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue