Date: Tue, 8 Dec 2015 12:31:11 +0000 From: David Chisnall <theraven@FreeBSD.org> To: Ray Newman <ray@woopwoop.com> Cc: FreeBSD-current@FreeBSD.org Subject: Re: Dwarf problem with gcc and gdb Message-ID: <259B859F-93DD-4989-8E0C-2B7635966F0F@FreeBSD.org> In-Reply-To: <CBA7FABE-5869-4A17-8858-D4A9AD14D830@woopwoop.com>
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The gdb in the base system doesn’t support DWARF4. Use gdb791 or lldb-devel from ports (I believe gdb791 is probably a better bet on ARM, currently).
David
> On 8 Dec 2015, at 09:02, Ray Newman <ray@woopwoop.com> wrote:
>
> Hi,
>
> Compiled using gcc (FreeBSD Ports Collection) 4.8.5 on arm (Raspberry Pi - several versions); BSDmakefile attached (make test used).
> gdb gives:
> GNU gdb 6.1.1 [FreeBSD]
> Copyright 2004 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you are
> welcome to change it and/or distribute copies of it under certain conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB. Type "show warranty" for details.
> This GDB was configured as "armv6-marcel-freebsd"...Dwarf Error: wrong version in compilation unit header (is 4, should be 2) [in module /home/ray/mumps/mumps]
>
> I need to fix this to find the *real* problem.
>
> Thanks, Ray
>
>
> # Makefile for MUMPS BSD
> # Copyright (c) Raymond Douglas Newman, 1999 - 2014
> # with help from Sam Habiel
>
> CC = gcc
> LIBS = -lm -lcrypt
> EXTRA = -O -Wall -Iinclude
>
> .ifmake test
> EXTRA = -O0 -g -gdwarf-2 -gstrict-dwarf -ggdb -Wall -Iinclude
> .endif
>
> SUBDIRS=compile database init runtime seqio symbol util xcall
>
> RM=rm -f
>
> PROG = mumps
>
> OBJS = compile/dollar.o \
> compile/eval.o \
> compile/localvar.o \
> compile/parse.o \
> compile/routine.o \
> database/db_buffer.o \
> database/db_daemon.o \
> database/db_get.o \
> database/db_ic.o \
> database/db_kill.o \
> database/db_locate.o \
> database/db_main.o \
> database/db_rekey.o \
> database/db_set.o \
> database/db_uci.o \
> database/db_util.o \
> database/db_view.o \
> init/init_create.o \
> init/init_run.o \
> init/init_start.o \
> init/mumps.o \
> runtime/runtime_attn.o \
> runtime/runtime_buildmvar.o \
> runtime/runtime_debug.o \
> runtime/runtime_func.o \
> runtime/runtime_math.o \
> runtime/runtime_pattern.o \
> runtime/runtime_run.o \
> runtime/runtime_ssvn.o \
> runtime/runtime_util.o \
> runtime/runtime_vars.o \
> seqio/SQ_Util.o \
> seqio/SQ_Signal.o \
> seqio/SQ_Device.o \
> seqio/SQ_File.o \
> seqio/SQ_Pipe.o \
> seqio/SQ_Seqio.o \
> seqio/SQ_Socket.o \
> seqio/SQ_Tcpip.o \
> symbol/symbol_new.o \
> symbol/symbol_util.o \
> util/util_key.o \
> util/util_lock.o \
> util/util_memory.o \
> util/util_routine.o \
> util/util_share.o \
> util/util_strerror.o \
> xcall/xcall.o
>
> .c.o:
> ${CC} ${EXTRA} -c $< -o $@
>
> all: ${OBJS}
> ${CC} ${EXTRA} -o ${PROG} ${OBJS} ${LIBS}
>
> test: ${OBJS}
> ${CC} ${EXTRA} -o ${PROG} ${OBJS} ${LIBS}
>
> clean:
> rm -f ${OBJS} ${PROG} ${PROG}.core
>
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