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Subject: [Bug 216132] devel/gdb: at e.g. -r431413: get_core_register_section
 can get SIGSEGV from NULL regset arguments
Date: Tue, 17 Jan 2017 19:41:47 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D216132

--- Comment #2 from Mark Millard <markmi@dsl-only.net> ---
I'll note that I use the likes of:

# /usr/local/bin/gdb
GNU gdb (GDB) 7.12 [GDB v7.12 for FreeBSD]
. . .
(gdb) set gnutarget arm-gnueabi-freebsd
(gdb) core-file qemu_gmake.core=20
[New process 51247]
Segmentation fault (core dumped)

Without the gnutarget specification I just
get:

"/root/poudriere_failure/work/binutils-2.27/ld/qemu_gmake.core" is not a co=
re
dump: File format is ambiguous

Does doing similarly let you progress?


As for providing the core file. . .

It is from a gmake crash (GPLv3).

As near as I can tell uploading the arm
gmake file and/or the qemu_gmake.core file
is a binary distribution under GPLv3
and would introduce whatever obligations
GPLv3 indicates.

I'll look and see if I'm willing to do whatever
GPLv3 indicates. Otherwise I'd need to come
up with an example core file that does not
impose such obligations.

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