[uClibc] error: impossible constraint in `asm'

Shu-Liang Lee shuliang at ms8.hinet.net
Wed Oct 6 08:19:56 UTC 2004


Hello sir...
 
Please help me to figure out the problem? what do I do?
Emergency...thank you.
 
[root at ShuLiang linux]# armeb-linux-uclibc-gcc testcase1.c
testcase1.c: In function `testcase':
testcase1.c:4: error: impossible constraint in `asm'
[root at ShuLiang linux]#

[testcase.c]
void* testcase( void ) {
  void *r;
 
  __asm__("test %%eax, %%eax" : "=eax"(r));
 
  return r;
}

[gcc version]
[root at ShuLiang linux]# armeb-linux-uclibc-gcc -v
Reading specs from
/usr/local/armeb/bin/../lib/gcc/armeb-linux-uclibc/3.4.1/specs
Configured with:
/home/shuliang/workdir/sip/download/patch_utils/uclibc/gcc-3.4.x/toolcha
in_build_armeb/gcc-3.4.1/configure
--prefix=/home/shuliang/workdir/sip/download/patch_utils/uclibc/gcc-3.4.
x/toolchain_armeb --build=i386-pc-linux-gnu --host=i386-pc-linux-gnu
--target=armeb-linux-uclibc --enable-languages=c,c++ --enable-shared
--disable-__cxa_atexit --enable-target-optspace --with-gnu-ld
--disable-nls --enable-multilib --enable-sjlj-exceptions :
(reconfigured)
/home/shuliang/workdir/sip/download/patch_utils/uclibc/gcc-3.4.x/toolcha
in_build_armeb/gcc-3.4.1/configure
--prefix=/home/shuliang/workdir/sip/download/patch_utils/uclibc/gcc-3.4.
x/toolchain_armeb --build=i386-pc-linux-gnu --host=i386-pc-linux-gnu
--target=armeb-linux-uclibc --enable-languages=c,c++ --enable-shared
--disable-__cxa_atexit --enable-target-optspace --with-gnu-ld
--disable-nls --enable-multilib --enable-sjlj-exceptions
Thread model: posix
gcc version 3.4.1
[root at ShuLiang linux]#

 
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