Bug 5283

Summary:	eu-objdump does not work on mips, arm and ppc
Product:	[Build System, Metadata & Runtime] OE-Core	Reporter:	LiRongQing <rongqing.li>
Component:	core	Assignee:	Chen Qi <Qi.Chen>
Status:	RESOLVED WONTFIX	QA Contact:
Severity:	major
Priority:	Medium	CC:	liezhi.yang, meta.mr.watcher, meta.watcher, Qi.Chen, rongqing.li, sgw, yi.zhao
Version:	1.5
Target Milestone:	1.5.1
Hardware:	x86
OS:	Multiple
Whiteboard:	Release Note
OS type for building Yocto:	---	Type of Regression:	---
Verified:		Documentation change:	No (bug/feature does not impact docs)

Description LiRongQing 2013-09-27 00:46:22 UTC

root@qemumips:/tmp# uname -a
Linux qemumips 3.10.11-yocto-standard #1 PREEMPT Thu Sep 26 19:56:05 CST 2013 mips GNU/Linux
root@qemumips:/tmp# 
root@qemumips:/tmp# file /bin/busybox.nosuid
/bin/busybox.nosuid: ELF 32-bit MSB  executable, MIPS, MIPS32 version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.16, BuildID[sha1]=633455006d4eb54e4e6cd6e10ab990e056bc11a5, stripped
root@qemumips:/tmp# 
root@qemumips:/tmp#  eu-objdump -d /bin/busybox.nosuid
/bin/busybox.nosuid: elf32-elf_mips

eu-objdump: cannot disassemble
root@qemumips:/tmp#

Comment 1 Chen Qi 2013-09-30 07:32:20 UTC

It seems that our elfutils only supports disassemble on x86 platforms.

To correctly disassemble elf binaries, some arch related header files are needed.

In our project, only i386 and x86_64 related header files are available.

SRC_URI += "\
        file://i386_dis.h \
        file://x86_64_dis.h \
"

No relevant files for other archs are available in OE.

I've sent an email to upstream asking about whether elfutils supports disassemble on on-x86 platforms.

//Chen Qi

Comment 2 Chen Qi 2013-09-30 07:49:53 UTC

Looking at the contents under libcpu/, only x86 related contents are there.
So I think it's possible that elfutils only supports disassemble on x86 platforms. But I'm still waiting for upstream reply.

//Chen Qi

Comment 3 Chen Qi 2013-10-08 01:32:46 UTC

Confirmed from upstream: eu-objdump doesn't support no-x86 platform disassemble.

See original email below:
'''
On Mon, 2013-09-30 at 15:24 +0800, ChenQi wrote:
> x86_64_dis.h and i386_dis.h are available under /libcpu, but no relevant 
> files for other archs.
> So if I understand it right, eu-objdump only supports disassemble on x86 
> platforms? Right?

That is currently correct yes. Additional disassemblers are always
welcome of course.

Cheers,

Mark
'''

So mark this bug as RESOLVED/WONTFIX.
//Chen Qi