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Date: Fri, 22 Feb 2013 23:57:42 +0400
From: Lev Serebryakov <lev@FreeBSD.org>
Organization: FreeBSD
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Message-ID: <781694121.20130222235742@serebryakov.spb.ru>
To: Dimitry Andric <dimitry@andric.com>
Subject: Re: r245741 (clang as cc) can not build binaries for GEODE processor
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Hello, Dimitry.
You wrote 22 =D1=84=D0=B5=D0=B2=D1=80=D0=B0=D0=BB=D1=8F 2013 =D0=B3., 20:14=
:50:

DA> As Joerg Sonnenberger mentioned to me, the address 0x10351d6 you show in
DA> the gdb session seems to be quite high, possibly pointing to some shared
DA> library.  Maybe you can try to figure out which library it is?
 Ok, very simple "hello, world!" program crashes too! And I have debug
 symbols for it ;-)

Program terminated with signal 4, Illegal instruction.
Reading symbols from /lib/libc.so.7...done.
Loaded symbols for /lib/libc.so.7
Reading symbols from /libexec/ld-elf.so.1...done.
Loaded symbols for /libexec/ld-elf.so.1
#0  0x080483e9 in _start1 ()
(gdb) where
#0  0x080483e9 in _start1 ()
#1  0x08048398 in _start ()
#2  0x00000000 in ?? ()
(gdb) x/i $pc
0x80483e9 <_start1+73>: nopl   0x0(%eax)
(gdb)

 This program was built with:

cc -O99 -g -o test test.c

cc --version
FreeBSD clang version 3.2 (tags/RELEASE_32/final 170710) 20121221
Target: i386-unknown-freebsd10.0
Thread model: posix

 test.c could consist of empty main() function.

  So, by default clang from r247144 still (or again?) has problems with
long NOPs.

--=20
// Black Lion AKA Lev Serebryakov <lev@FreeBSD.org>