summary refs log tree commit diff stats
path: root/results/classifier/118/architecture-i386/1076445
diff options
context:
space:
mode:
Diffstat (limited to 'results/classifier/118/architecture-i386/1076445')
-rw-r--r--results/classifier/118/architecture-i386/1076445112
1 files changed, 112 insertions, 0 deletions
diff --git a/results/classifier/118/architecture-i386/1076445 b/results/classifier/118/architecture-i386/1076445
new file mode 100644
index 00000000..1363177d
--- /dev/null
+++ b/results/classifier/118/architecture-i386/1076445
@@ -0,0 +1,112 @@
+architecture: 0.983
+i386: 0.975
+user-level: 0.939
+files: 0.910
+performance: 0.892
+x86: 0.858
+ppc: 0.858
+PID: 0.857
+kernel: 0.839
+register: 0.831
+device: 0.818
+arm: 0.806
+peripherals: 0.805
+graphic: 0.779
+permissions: 0.724
+mistranslation: 0.700
+boot: 0.698
+semantic: 0.696
+socket: 0.690
+TCG: 0.640
+debug: 0.625
+hypervisor: 0.570
+network: 0.556
+risc-v: 0.537
+VMM: 0.504
+vnc: 0.487
+assembly: 0.471
+KVM: 0.371
+virtual: 0.340
+--------------------
+i386: 0.989
+x86: 0.980
+virtual: 0.520
+hypervisor: 0.335
+files: 0.062
+TCG: 0.032
+PID: 0.018
+register: 0.012
+debug: 0.007
+semantic: 0.006
+arm: 0.004
+architecture: 0.003
+user-level: 0.003
+kernel: 0.003
+boot: 0.003
+performance: 0.003
+device: 0.003
+network: 0.002
+VMM: 0.002
+socket: 0.001
+permissions: 0.001
+KVM: 0.001
+peripherals: 0.001
+ppc: 0.001
+risc-v: 0.001
+graphic: 0.001
+mistranslation: 0.000
+vnc: 0.000
+assembly: 0.000
+
+qemu-i386 fails on system(3) with a cross-toolchain from Buildroot
+
+qemu-i386 fails with small C program containing a system().
+The C program is cross-compiled with a toolchain created by buildroot (http://buildroot.net/), gcc version 4.6.3, uClibc version 0.9.33.2 .
+qemu version 1.2.0 (built with http://git.buildroot.net/buildroot/tree/package/qemu/qemu.mk)
+host machine : Ubuntu 12.04 LTS on x86_64.
+
+    $ cat sys.c
+    #include <stdio.h>
+    #include <stdlib.h>
+
+    int main()
+   {
+    	int ret = system("echo hello");
+    	printf("%d\n", ret);
+    }
+
+    $ ../../host/usr/bin/i686-buildroot-linux-uclibc-gcc -o sys sys.c
+    $ file sys
+    sys: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), not stripped
+    $ ../../host/usr/bin/qemu-i386 ./sys
+    -1
+
+same problem with x86_64 :
+    $ ../../host/usr/bin/x86_64-buildroot-linux-uclibc-gcc -o sys sys.c
+    $ file sys
+    sys: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), not stripped
+    $ ../../host/usr/bin/qemu-x86_64 sys
+    -1
+
+works fine with arm :
+    $ ../../host/usr/bin/arm-buildroot-linux-uclibcgnueabi-gcc -o sys sys.c
+    $ file sys
+    sys: ELF 32-bit LSB executable, ARM, version 1 (SYSV), dynamically linked (uses shared libs), not stripped
+    $ ../../host/usr/bin/qemu-arm ./sys
+    hello
+    0
+
+works fine with mips :
+    $ ../../host/usr/bin/mips-buildroot-linux-uclibc-gcc -o sys sys.c
+    $ file sys
+    sys: ELF 32-bit MSB executable, MIPS, MIPS32 rel2 version 1 (SYSV), dynamically linked (uses shared libs), with unknown capability 0x41000000 = 0xf676e75, with unknown capability 0x10000 = 0x70403, not stripped
+    $ ../../host/usr/bin/qemu-mips sys
+    hello
+    0
+
+Looks like the long-standing "clone/fork for i386 user mode targets doesn't work" issue. See also discussion in bug 739785...
+
+
+Fixed in 2013 some time.
+
+