GNU bug report logs - #28308
Build failure on FreeBSD/aarch64

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Message #88 received at 28308 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Noam Postavsky <npostavs <at> users.sourceforge.net>
Cc: gergely.czuczy <at> harmless.hu, 28308 <at> debbugs.gnu.org
Subject: Re: bug#28308: Build failure on FreeBSD/aarch64
Date: Fri, 20 Oct 2017 10:07:51 +0300

> From: Noam Postavsky <npostavs <at> users.sourceforge.net>
> Cc: Eli Zaretskii <eliz <at> gnu.org>,  28308 <at> debbugs.gnu.org
> Date: Thu, 19 Oct 2017 19:39:11 -0400
> 
> It seems that the debug info show by lldb is bogus, it shows two
> locations for tty_menu_display (see attached).

Maybe that function was inlined?

> Here is a backtrace from running 'lldb -- ./bootstrap-emacs -Q -batch',
> with source locations generated by 'addr2line -e ./bootstrap-emacs -f -i -p'.
>  
> * thread #1, name = 'bootstrap-emacs', stop reason = signal SIGSEGV: invalid address (fault address: 0x41626d78)
> 0x000000000022810c XFLOAT_INIT at /root/emacs/src/alloc.c:543
> 0x0000000000227eb0 make_float at /root/emacs/src/alloc.c:2667
> 0x000000000022de24 init_alloc at /root/emacs/src/alloc.c:7481
> 0x000000000016825c main at /root/emacs/src/emacs.c:1251
> 0x0000000000040190 __start at /tank/rpi3/src/lib/csu/aarch64/crt1.c:84
> 0x0000000040390018 ?? at ??:0

Can you disassemble XFLOAT_INIT and tell which part of it caused the
segfault, and why?  In particular, what is the relation of the
faulting address 0x41626d78 and the C source?

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