Re: [Qemu-devel] TCG

[Johannes Schindelin]

Hi,

here it bails out:

--  snip --
gcc -Wall -O2 -g -fno-strict-aliasing  -fno-reorder-blocks  -fno-gcse  
-fno-tree-ch  -fno-optimize-sibling-calls  -fno-crossjumping  
-fno-align-labels  -fno-align-jumps  -fno-align-functions   
-mpreferred-stack-boundary=2 -fomit-frame-pointer 
-DCONFIG_HAS_LINUX_COMPILER_H=1 -m32 -I. -I.. -I/home/qemu/target-i386 
-I/home/qemu -MMD -MP -DNEED_CPU_H -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 
-D_LARGEFILE_SOURCE -I/home/qemu/tcg -I/home/qemu/tcg/i386 
-I/home/qemu/fpu -I/home/qemu/linux-user -I/home/qemu/linux-user/i386 -c 
-o op.o /home/qemu/target-i386/op.c
/home/qemu/target-i386/ops_sse.h: In function ‘op_pshufw_mmx’:
/home/qemu/target-i386/ops_sse.h:593: error: unable to find a register to 
spill in class ‘GENERAL_REGS’
/home/qemu/target-i386/ops_sse.h:593: error: this is the insn:
(insn:HI 17 16 18 0 /home/qemu/target-i386/ops_sse.h:588 (set 
(strict_low_part (subreg:HI (reg/v:DI 63 [ r ]) 0))
        (mem/s/j:HI (plus:SI (mult:SI (reg:SI 64)
                    (const_int 2 [0x2]))
                (reg/v/f:SI 59 [ s ])) [0 <variable>._w S2 A16])) 40 
{*movstricthi_1} (insn_list:REG_DEP_TRUE 51 (insn_list:REG_DEP_TRUE 12 
(insn_list:REG_DEP_TRUE 16 (nil))))
    (expr_list:REG_DEAD (reg:SI 64)
        (nil)))
/home/qemu/target-i386/ops_sse.h:593: confused by earlier errors, bailing 
out
-- snap --



and in i386-softmmu it is similar:



-- snip --
gcc -Wall -O2 -g -fno-strict-aliasing  -fno-reorder-blocks  -fno-gcse  
-fno-tree-ch  -fno-optimize-sibling-calls  -fno-crossjumping  
-fno-align-labels  -fno-align-jumps  -fno-align-functions   
-mpreferred-stack-boundary=2 -fomit-frame-pointer 
-DCONFIG_HAS_LINUX_COMPILER_H=1 -m32 -I. -I.. -I/home/qemu/target-i386 
-I/home/qemu -MMD -MP -DNEED_CPU_H -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 
-D_LARGEFILE_SOURCE -I/home/qemu/tcg -I/home/qemu/tcg/i386 
-I/home/qemu/fpu  -DHAS_AUDIO -DHAS_AUDIO_CHOICE -I/home/qemu/slirp -c -o 
op.o /home/qemu/target-i386/op.c
/home/qemu/target-i386/ops_template_mem.h: In function 
‘op_cmpxchgb_kernel_T0_T1_EAX_cc’:
../softmmu_header.h:170: error: can't find a register in class ‘Q_REGS’ 
while reloading ‘asm’
-- snap --



This is on OpenSUSE 10.2, gcc (GCC) 4.1.2 20061115 (prerelease) (SUSE 
Linux), with "./configure --disable-gcc-check", and this patch on top of 
"<bellard>: typos, Fri Feb 1 13:01:47 2008 +0000":



-- snip --
[PATCH] Some Linux setups need linux/compiler.h; if it exists, include it

Signed-off-by: Johannes Schindelin <address@hidden>
---
 configure   |    3 +++
 usb-linux.c |    3 +++
 2 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/configure b/configure
index bcb958d..330020d 100755
--- a/configure
+++ b/configure
@@ -194,6 +194,9 @@ linux_user="yes"
 if [ "$cpu" = "i386" -o "$cpu" = "x86_64" ] ; then
     kqemu="yes"
 fi
+if [ -f /usr/include/linux/compiler.h ] ; then
+    OS_CFLAGS="-DCONFIG_HAS_LINUX_COMPILER_H=1"
+fi
 ;;
 esac
 
diff --git a/usb-linux.c b/usb-linux.c
index d3e4e2e..68fdbd2 100644
--- a/usb-linux.c
+++ b/usb-linux.c
@@ -28,6 +28,9 @@
 #if defined(__linux__)
 #include <dirent.h>
 #include <sys/ioctl.h>
+#ifdef CONFIG_HAS_LINUX_COMPILER_H
+#include <linux/compiler.h>
+#endif
 #include <linux/usbdevice_fs.h>
 #include <linux/version.h>
 #include <signal.h>
-- 
1.5.4.rc5.32.gc7b9
-- snap --



Ciao,
Dscho