[Bug 1051156] Re: GNU CC compiler

[Edward Donovan]

** Package changed: ubuntu => gcc-defaults (Ubuntu)

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https://bugs.launchpad.net/bugs/1051156

Title:
  GNU CC compiler

Status in “gcc-4.6” package in Ubuntu:
  New

Bug description:
  There was a problem in GCC when I added some inline assembly.

  
  as: BFD (GNU Binutils for Ubuntu) 2.22 assertion fail ../../bfd/elf.c:6715
  as: BFD (GNU Binutils for Ubuntu) 2.22 internal error, aborting at ../../bfd/elfcode.h line 229 in bfd_elf32_swap_symbol_out

  as: Please report this bug.

  ..................................................

  inline assembly:

  
  __asm__(
                  "movl $(%ebx+4), %eax;" /* getting the operand in %eax */
                  "movl $0, %ebx;" /* ebx is the counter iand initializing it */
          "_start:"
                  "cmpl $0, %eax;"
                  "jz _final ;" /* if the comparison is 0 then jump to _final label */
                  "movl %eax, %ecx;"
                  "andl $1, %ecx;"
                  "cmpl $0, %ecx;"
                  "jz _skipadd;"
                  "addl $1, %ebx;"   /* if the last bit is set increment the counter */

          "_skipadd:"
                  "shrl $1, %eax;" /* dividing the number by 2 */
                  "jmp _start;"

          "_final:"            /* final location */
                  /* now we have to restore the registers */
                  "movl %eax, %ebx;"   /* storing the result in %eax */
                  "ret;"
   );

  
  .........................................................................

  
  System information
  naveen at naveen-ubuntu:/$ uname -a
  Linux naveen-ubuntu 3.2.0-29-generic-pae #46-Ubuntu SMP Fri Jul 27 17:25:43 UTC 2012 i686 i686 i386 GNU/Linux

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