Re: [Mingw-msys] Assemble problem in Mingw32 (binutils-2.17.50-20070129-1.tar.gz)

[Michael DOUBEZ <michael.doubez@xxxxxxx>]

haibin zhang a écrit :
> --- Michael DOUBEZ <michael.doubez@xxxxxxx>写道:
> 
>> haibin zhang a écrit :
>>> Hi All :
>>> I test cpu id using as in
>>> binutils-2.17.50-20070129-1.tar.gz, but it can't
>>> compile pass, I have tested this in linux, it's
>> ok.
>>> I have two file :cpuidfunc.s  stringtest.c
>>> I use compile command :
>>> gcc -o test.exe cpuidfunc.s  stringtest.c
>>>
>>> It print error :
>>> $ gcc -o test.exe cpuidfunc.s stringtest.c
>>> cpuidfunc.s: Assembler messages:
>>> cpuidfunc.s:5: Warning: .type pseudo-op used
>> outside
>>> of .def/.endef ignored.
>>> cpuidfunc.s:5: Error: junk at end of line, first
>>> unrecognized character is `c'
>> [snip]
> ------------------------------------------------------------------------
>>> # cpuidfunc.s - An example of returning a string
>> value
>>> .section .bss
>>>    .comm output, 13
>>> .section .text
>>> .type cpuidfunc, @function
>>> .globl cpuidfunc
>>> cpuidfunc:
>> [snip]
>>
>>  From Gnu Assembler:
>> http://tigcc.ticalc.org/doc/gnuasm.html#SEC133
>>
>> .type
>>
>> Syntax: .type int
>>
>> This directive, permitted only within .def/.endef
>> pairs, records the 
>> integer int as the type attribute of a symbol table
>> entry.
>>
>> The line should be.
>> .globl cpuidfunc
>>      .def .type cpuidfunc, @function; .endef
>>
>>
> 
> I changed as you said, but it occur this error:
> $ gcc -o haha cpuidfunc.s  stringtest.c
> cpuidfunc.s: Assembler messages:
> cpuidfunc.s:7: Error: junk at end of line, first
> unrecognized character is `c'
> cpuidfunc.s:7: Error: unknown pseudo-op: `.enddef'

Try the following:
# cpuidfunc.s - An example of returning a string value
.section .bss
   .comm output, 13
.global _cpuidfunc
.section .text
.def _cpuidfunc ; .scl 2 ; .type 32 ; .endef
_cpuidfunc:
   pushl %ebp
   movl %esp, %ebp
   pushl %ebx
   movl $0,%eax
   cpuid
   movl $output, %edi
   movl %ebx, (%edi)
   movl %edx, 4(%edi)
   movl %ecx, 8(%edi)
   movl $output, %eax
   popl %ebx
   movl %ebp, %esp
   popl %ebp
   ret

Michael


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