From: "krebbel at linux dot vnet.ibm.com" <sourceware-bugzilla@sourceware.org>
To: elfutils-devel@sourceware.org
Subject: [Bug libdw/22452] Failed to obtain CFI data for a OP_call_frame_CFA when looking for func entrypoc in an s390 kernel module
Date: Mon, 20 Nov 2017 08:11:00 -0000 [thread overview]
Message-ID: <bug-22452-10460-wHDclq2U3x@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-22452-10460@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=22452
--- Comment #11 from Andreas Krebbel <krebbel at linux dot vnet.ibm.com> ---
x86 enables generation of .debug_frame by using:
KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
in the kernel Makefile. This makes GCC to add ".cfi_sections .debug_frame" to
the assembler output which in turn triggers gas to generate the section.
I don't see a reason why we couldn't do the same for s390. The .eh_frame
section aren't used in the kernel.
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next prev parent reply other threads:[~2017-11-20 8:11 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-17 14:29 [Bug libdw/22452] New: " brueckner at linux dot vnet.ibm.com
2017-11-17 15:27 ` [Bug libdw/22452] " mark at klomp dot org
2017-11-17 15:38 ` brueckner at linux dot vnet.ibm.com
2017-11-17 15:44 ` brueckner at linux dot vnet.ibm.com
2017-11-17 15:53 ` mark at klomp dot org
2017-11-17 15:56 ` mark at klomp dot org
2017-11-17 16:02 ` brueckner at linux dot vnet.ibm.com
2017-11-17 16:03 ` brueckner at linux dot vnet.ibm.com
2017-11-17 16:04 ` brueckner at linux dot vnet.ibm.com
2017-11-17 16:46 ` mark at klomp dot org
2017-11-20 8:09 ` brueckner at linux dot vnet.ibm.com
2017-11-20 8:11 ` krebbel at linux dot vnet.ibm.com [this message]
2017-11-20 9:28 ` mark at klomp dot org
2017-11-20 10:08 ` krebbel at linux dot vnet.ibm.com
2017-11-20 14:00 ` brueckner at linux dot vnet.ibm.com
2017-12-10 15:45 ` [Bug libdw/22452] Extend ebl_reloc_ hooks with relocations against load address for use in libdwfl/relocate.c mark at klomp dot org
2018-03-05 12:52 ` mark at klomp dot org
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