llvm dev - May 2008 - [LLVMdev] problems compiling gcc frontend: Error: bad register name `%rbp'

I have problem compiling the gcc frontend.
Almost everything seems to compile but at the very end
when crt startup files are compiled, the assembler complains
about bad registers.
Any idea what I am doing wrong?
Thanks,
Robert


HOST:
os: ubuntu 2.6.18 kernel  x86_64 GNU/Linux
compiler:            gcc (GCC) 4.0.3 (Ubuntu 4.0.3-1ubuntu5)

SOURCE:
svn trunk  gcc4.2

CONFIGURE:
../llvm-gcc-svn/configure --prefix=/home/robertm/Projects/llvm/
--enable-llvm=$PWD/../llvm-objects --disable-shared
--enable-languages=c

SAMPLE ERROR:
/home/robertm/Projects/llvm/llvm-gcc-objects/./gcc/xgcc
-B/home/robertm/Projects/llvm/llvm-gcc-objects/./gcc/
-B/home/robertm/Projects/llvm/export/x86_64-unknown-linux-gnu/bin/
-B/home/robertm/Projects/llvm/export/x86_64-unknown-linux-gnu/lib/
-isystem /home/robertm/Projects/llvm/export/x86_64-unknown-linux-gnu/include
-isystem /home/robertm/Projects/llvm/export/x86_64-unknown-linux-gnu/sys-include
-O2 -O2 -g -O2  -DIN_GCC    -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
-isystem ./include  -I. -I. -I../../llvm-gcc-svn/gcc
-I../../llvm-gcc-svn/gcc/. -I../../llvm-gcc-svn/gcc/../include
-I../../llvm-gcc-svn/gcc/../libcpp/include
-I../../llvm-gcc-svn/gcc/../libdecnumber -I../libdecnumber
-I/home/robertm/Projects/llvm/llvm-gcc-objects/../llvm-objects/include
-I/home/robertm/Projects/llvm/llvm-svn/include  -g0
-finhibit-size-directive -fno-inline-functions -fno-exceptions
-fno-zero-initialized-in-bss -fno-toplevel-reorder
-fno-omit-frame-pointer -fno-asynchronous-unwind-tables \
          -c ../../llvm-gcc-svn/gcc/crtstuff.c -DCRT_BEGIN \
          -o crtbegin.o
/tmp/ccW2TMKx.s: Assembler messages:
/tmp/ccW2TMKx.s:15: Error: bad register name `%rbp'
/tmp/ccW2TMKx.s:16: Error: bad register name `%rsp'
/tmp/ccW2TMKx.s:22: Error: bad register name `%rax'
/tmp/ccW2TMKx.s:23: Error: bad register name `%rax)'
/tmp/ccW2TMKx.s:24: Error: bad register name `%rcx'
/tmp/ccW2TMKx.s:29: Error: bad register name `%rbp'
/tmp/ccW2TMKx.s:32: Error: bad register name `%rax'
/tmp/ccW2TMKx.s:33: Error: bad register name `%rax'
/tmp/ccW2TMKx.s:34: Error: bad register name `%rcx'
/tmp/ccW2TMKx.s:42: Error: bad register name `%rbp'
/tmp/ccW2TMKx.s:43: Error: bad register name `%rsp'
/tmp/ccW2TMKx.s:44: Error: suffix or operands invalid for `cmp'
/tmp/ccW2TMKx.s:47: Error: bad register name `%rax'
/tmp/ccW2TMKx.s:50: Error: bad register name `%rax'
/tmp/ccW2TMKx.s:53: Error: bad register name `%rdi'
/tmp/ccW2TMKx.s:54: Error: bad register name `%rax'
/tmp/ccW2TMKx.s:56: Error: bad register name `%rbp'
make[3]: *** [crtbegin.o] Error 1

On May 28, 2008, at 5:22 PM, robert muth wrote:
> I have problem compiling the gcc frontend.
> Almost everything seems to compile but at the very end
> when crt startup files are compiled, the assembler complains
> about bad registers.
> Any idea what I am doing wrong?
> Thanks,
> Robert
It looks like your assembler is being invoked in 32-bit mode.  Other  
people have had that problem, but I don't recall how it was fixed  
(doesn't affect my platform).  Try the mailing list archives around  
2-3 months back.
> HOST:
> os: ubuntu 2.6.18 kernel  x86_64 GNU/Linux
> compiler:            gcc (GCC) 4.0.3 (Ubuntu 4.0.3-1ubuntu5)
>
> SOURCE:
> svn trunk  gcc4.2
>
> CONFIGURE:
> ../llvm-gcc-svn/configure --prefix=/home/robertm/Projects/llvm/
> --enable-llvm=$PWD/../llvm-objects --disable-shared
> --enable-languages=c
>
> SAMPLE ERROR:
> /home/robertm/Projects/llvm/llvm-gcc-objects/./gcc/xgcc
> -B/home/robertm/Projects/llvm/llvm-gcc-objects/./gcc/
> -B/home/robertm/Projects/llvm/export/x86_64-unknown-linux-gnu/bin/
> -B/home/robertm/Projects/llvm/export/x86_64-unknown-linux-gnu/lib/
> -isystem /home/robertm/Projects/llvm/export/x86_64-unknown-linux-gnu/ 
> include
> -isystem /home/robertm/Projects/llvm/export/x86_64-unknown-linux-gnu/ 
> sys-include
> -O2 -O2 -g -O2  -DIN_GCC    -W -Wall -Wwrite-strings
> -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
> -isystem ./include  -I. -I. -I../../llvm-gcc-svn/gcc
> -I../../llvm-gcc-svn/gcc/. -I../../llvm-gcc-svn/gcc/../include
> -I../../llvm-gcc-svn/gcc/../libcpp/include
> -I../../llvm-gcc-svn/gcc/../libdecnumber -I../libdecnumber
> -I/home/robertm/Projects/llvm/llvm-gcc-objects/../llvm-objects/include
> -I/home/robertm/Projects/llvm/llvm-svn/include  -g0
> -finhibit-size-directive -fno-inline-functions -fno-exceptions
> -fno-zero-initialized-in-bss -fno-toplevel-reorder
> -fno-omit-frame-pointer -fno-asynchronous-unwind-tables \
>          -c ../../llvm-gcc-svn/gcc/crtstuff.c -DCRT_BEGIN \
>          -o crtbegin.o
> /tmp/ccW2TMKx.s: Assembler messages:
> /tmp/ccW2TMKx.s:15: Error: bad register name `%rbp'
> /tmp/ccW2TMKx.s:16: Error: bad register name `%rsp'
> /tmp/ccW2TMKx.s:22: Error: bad register name `%rax'
> /tmp/ccW2TMKx.s:23: Error: bad register name `%rax)'
> /tmp/ccW2TMKx.s:24: Error: bad register name `%rcx'
> /tmp/ccW2TMKx.s:29: Error: bad register name `%rbp'
> /tmp/ccW2TMKx.s:32: Error: bad register name `%rax'
> /tmp/ccW2TMKx.s:33: Error: bad register name `%rax'
> /tmp/ccW2TMKx.s:34: Error: bad register name `%rcx'
> /tmp/ccW2TMKx.s:42: Error: bad register name `%rbp'
> /tmp/ccW2TMKx.s:43: Error: bad register name `%rsp'
> /tmp/ccW2TMKx.s:44: Error: suffix or operands invalid for `cmp'
> /tmp/ccW2TMKx.s:47: Error: bad register name `%rax'
> /tmp/ccW2TMKx.s:50: Error: bad register name `%rax'
> /tmp/ccW2TMKx.s:53: Error: bad register name `%rdi'
> /tmp/ccW2TMKx.s:54: Error: bad register name `%rax'
> /tmp/ccW2TMKx.s:56: Error: bad register name `%rbp'
> make[3]: *** [crtbegin.o] Error 1
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev

Dale:

Yes, there were a number of postings in March. The issue seemed to not
have been fully resolved but
I added "i686-pc-linux-gnu" to the end of my command line
and now the whole thing compiles.

I cannot find a llvm-gcc binary in my install directory, all I have is
 gcc which reports:
../export/bin/gcc -dumpmachine
i686-pc-linux-gnu

It turns out I can generate llvm assembler output using "-S
-emit-llvm"
but using just -emit-llvm does not work
./gcc  -emit-llvm  /home/robertm/hello.c
/tmp/cc3X2m5t.o: file not recognized: File format not recognized
collect2: ld returned 1 exit status

Is this expected?

Robert
On Wed, May 28, 2008 at 8:53 PM, Dale Johannesen <dalej at apple.com>
wrote:
>
> On May 28, 2008, at 5:22 PM, robert muth wrote:
>
>> I have problem compiling the gcc frontend.
>> Almost everything seems to compile but at the very end
>> when crt startup files are compiled, the assembler complains
>> about bad registers.
>> Any idea what I am doing wrong?
>> Thanks,
>> Robert
>
> It looks like your assembler is being invoked in 32-bit mode.  Other
> people have had that problem, but I don't recall how it was fixed
> (doesn't affect my platform).  Try the mailing list archives around
> 2-3 months back.
>
>> HOST:
>> os: ubuntu 2.6.18 kernel  x86_64 GNU/Linux
>> compiler:            gcc (GCC) 4.0.3 (Ubuntu 4.0.3-1ubuntu5)
>>
>> SOURCE:
>> svn trunk  gcc4.2
>>
>> CONFIGURE:
>> ../llvm-gcc-svn/configure --prefix=/home/robertm/Projects/llvm/
>> --enable-llvm=$PWD/../llvm-objects --disable-shared
>> --enable-languages=c
>>
>> SAMPLE ERROR:
>> /home/robertm/Projects/llvm/llvm-gcc-objects/./gcc/xgcc
>> -B/home/robertm/Projects/llvm/llvm-gcc-objects/./gcc/
>> -B/home/robertm/Projects/llvm/export/x86_64-unknown-linux-gnu/bin/
>> -B/home/robertm/Projects/llvm/export/x86_64-unknown-linux-gnu/lib/
>> -isystem /home/robertm/Projects/llvm/export/x86_64-unknown-linux-gnu/
>> include
>> -isystem /home/robertm/Projects/llvm/export/x86_64-unknown-linux-gnu/
>> sys-include
>> -O2 -O2 -g -O2  -DIN_GCC    -W -Wall -Wwrite-strings
>> -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
>> -isystem ./include  -I. -I. -I../../llvm-gcc-svn/gcc
>> -I../../llvm-gcc-svn/gcc/. -I../../llvm-gcc-svn/gcc/../include
>> -I../../llvm-gcc-svn/gcc/../libcpp/include
>> -I../../llvm-gcc-svn/gcc/../libdecnumber -I../libdecnumber
>> -I/home/robertm/Projects/llvm/llvm-gcc-objects/../llvm-objects/include
>> -I/home/robertm/Projects/llvm/llvm-svn/include  -g0
>> -finhibit-size-directive -fno-inline-functions -fno-exceptions
>> -fno-zero-initialized-in-bss -fno-toplevel-reorder
>> -fno-omit-frame-pointer -fno-asynchronous-unwind-tables \
>>          -c ../../llvm-gcc-svn/gcc/crtstuff.c -DCRT_BEGIN \
>>          -o crtbegin.o
>> /tmp/ccW2TMKx.s: Assembler messages:
>> /tmp/ccW2TMKx.s:15: Error: bad register name `%rbp'
>> /tmp/ccW2TMKx.s:16: Error: bad register name `%rsp'
>> /tmp/ccW2TMKx.s:22: Error: bad register name `%rax'
>> /tmp/ccW2TMKx.s:23: Error: bad register name `%rax)'
>> /tmp/ccW2TMKx.s:24: Error: bad register name `%rcx'
>> /tmp/ccW2TMKx.s:29: Error: bad register name `%rbp'
>> /tmp/ccW2TMKx.s:32: Error: bad register name `%rax'
>> /tmp/ccW2TMKx.s:33: Error: bad register name `%rax'
>> /tmp/ccW2TMKx.s:34: Error: bad register name `%rcx'
>> /tmp/ccW2TMKx.s:42: Error: bad register name `%rbp'
>> /tmp/ccW2TMKx.s:43: Error: bad register name `%rsp'
>> /tmp/ccW2TMKx.s:44: Error: suffix or operands invalid for `cmp'
>> /tmp/ccW2TMKx.s:47: Error: bad register name `%rax'
>> /tmp/ccW2TMKx.s:50: Error: bad register name `%rax'
>> /tmp/ccW2TMKx.s:53: Error: bad register name `%rdi'
>> /tmp/ccW2TMKx.s:54: Error: bad register name `%rax'
>> /tmp/ccW2TMKx.s:56: Error: bad register name `%rbp'
>> make[3]: *** [crtbegin.o] Error 1
>> _______________________________________________
>> LLVM Developers mailing list
>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>