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Hello,
I'm using crosstool-ng v1.4.0 and qemu-ppc v0.10.2 on Intel and I
can't get any PPC binaries to work, every binary fails to execute
(even hello world) and ends up with a qemu segmentation fault (the
crash is included below). I've tried earlier versions of qemu, but it
doesn't seem to make a difference.
I'm using a PPC cross-compiler and sys-root made from crosstools-ng's
standard powerpc-unknown-linux-gnu configuration. This binary works
fine on an actual PPC-linux system, but never using qemu-ppc. I've
tried many different combinations of gcc/glibc for the cross-compiler
and it hasn't seemed to make any difference.
Has anyone been able to get a crosstools built that works with the
latest qemu? In case it helps, I've included the the crash, qemu
version, hello.c program, /proc/cpu output, and gcc -v information.
Thank you,
Jay Schulist
[jschulist@cross-comp2 ~]$ qemu-ppc -strace -L
/opt/x-tools8/powerpc-unknown-linux-gnu/powerpc-unknown-linux-gnu//sys-root
~/hello
17637 brk(0,1074284272,0,1074462048,1074458432,0) = 0x10012000
17637 mmap(0,4096,3,34,-1,0) = 0x42081000
17637 uname(0x4007f120) = 0
17637 access("/etc/ld.so.preload",04) = -1 errno=2 (No such file or directory)
17637 open("/etc/ld.so.cache",0,01) = 3
17637 fstat64(3,0x4007ebf0) = 0
17637 mmap(0,86927,1,2,3,0) = 0x42082000
17637 close(3) = 0
Invalid data memory access: 0xf2202008
NIP 4008aea8 LR 4008a9e8 CTR 00000000 XER 00000000
MSR 00006040 HID0 00000000 HF 00006000 idx 0
TB 00000000 00000000
GPR00 000000004209738f 000000004007ec78 0000000000000000 00000000a2382010
GPR04 000000004009c414 0000000000000000 0000000000000002 0000000000000003
GPR08 0000000042082000 00000000f2201ff4 000000004208200b 000000000001538f
GPR12 0000000040090764 0000000000000000 00000000400aed10 000000004007ecd8
GPR16 000000004007eee0 000000004007ecdc 000000000000000a 000000004009c24c
GPR20 0000000000000000 000000001000022c 0000000000000000 0000000042082000
GPR24 00000000ffffffff 0000000042081000 00000000a2382010 000000009fd1537f
GPR28 000000004803ffff 000000002401ffff 00000000400af7c0 0000000042082000
CR 44002002 [ G G - - E - - E ] RES ffffffff
FPR00 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR04 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR08 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR12 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR16 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR20 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR24 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR28 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPSCR 00000000
Segmentation fault
[jschulist@cross-comp2 ~]$ qemu-ppc -v
qemu-ppc version 0.10.2, Copyright (c) 2003-2008 Fabrice Bellard
usage: qemu-ppc [options] program [arguments...]
Linux CPU emulator (compiled for ppc emulation)
Standard options:
-h print this help
-g port wait gdb connection to port
-L path set the elf interpreter prefix (default=/usr/gnemul/qemu-ppc)
-s size set the stack size in bytes (default=524288)
-cpu model select CPU (-cpu ? for list)
-drop-ld-preload drop LD_PRELOAD for target process
-E var=value sets/modifies targets environment variable(s)
-U var unsets targets environment variable(s)
Debug options:
-d options activate log (logfile=/tmp/qemu.log)
-p pagesize set the host page size to 'pagesize'
-strace log system calls
Environment variables:
QEMU_STRACE Print system calls and arguments similar to the
'strace' program. Enable by setting to any value.
You can use -E and -U options to set/unset environment variables
for target process. It is possible to provide several variables
by repeating the option. For example:
-E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG
Note that if you provide several changes to single variable
last change will stay in effect.
[jschulist@cross-comp2 ~]$ cat hello.c
#include <stdio.h>
int main(void) {
printf("hello world\n");
return 0;
}
[jschulist@cross-comp2 ~]$
/opt/x-tools8/powerpc-unknown-linux-gnu/bin/powerpc-unknown-linux-gnu-gcc
-Wall -o hello hello.c
[jschulist@cross-comp2 ~]$ file hello
hello: ELF 32-bit MSB executable, PowerPC or cisco 4500, version 1
(SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.29,
with unknown capability 0x41000000 = 0x11676e75, with unknown
capability 0x10000 = 0x90401, not stripped
[jschulist@cross-comp2 ~]$
/opt/x-tools8/powerpc-unknown-linux-gnu/bin/powerpc-unknown-linux-gnu-gcc
-v
Using built-in specs.
Target: powerpc-unknown-linux-gnu
Configured with: /opt/crosstool-ng/targets/src/gcc-4.3.2/configure
--build=i386-build_redhat-linux-gnu --host=i386-build_redhat-linux-gnu
--target=powerpc-unknown-linux-gnu
--prefix=/root/x-tools8/powerpc-unknown-linux-gnu
--with-sysroot=/root/x-tools8/powerpc-unknown-linux-gnu/powerpc-unknown-linux-gnu//sys-root
--enable-languages=c,c++ --disable-multilib
--with-gmp=/root/x-tools8/powerpc-unknown-linux-gnu
--with-mpfr=/root/x-tools8/powerpc-unknown-linux-gnu
--with-pkgversion=crosstool-NG-svn_trunk@1459 --enable-__cxa_atexit
--with-local-prefix=/root/x-tools8/powerpc-unknown-linux-gnu/powerpc-unknown-linux-gnu//sys-root
--disable-nls --enable-threads=posix --enable-symvers=gnu --enable-c99
--enable-long-long --enable-target-optspace
Thread model: posix
gcc version 4.3.2 (crosstool-NG-svn_trunk@1459)
[jschulist@cross-comp2 ~]$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 Duo CPU E6550 @ 2.33GHz
stepping : 11
cpu MHz : 2333.331
cache size : 4096 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca
cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm
constant_tsc arch_perfmon pebs bts pni dtes64 monitor ds_cpl vmx smx
est tm2 ssse3 cx16 xtpr pdcm lahf_lm tpr_shadow vnmi flexpriority
bogomips : 4654.94
clflush size : 64
power management:
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 Duo CPU E6550 @ 2.33GHz
stepping : 11
cpu MHz : 2333.331
cache size : 4096 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
apicid : 1
initial apicid : 1
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca
cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm
constant_tsc arch_perfmon pebs bts pni dtes64 monitor ds_cpl vmx smx
est tm2 ssse3 cx16 xtpr pdcm lahf_lm tpr_shadow vnmi flexpriority
bogomips : 4654.75
clflush size : 64
power management:
[jschulist@cross-comp2 ~]$
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