[Bug translator/12536] New: sdt v>=2 argument parsing can't parse '4+4(%esp)'

[Roland McGrath]

I filed this PR when I hit problems trying to develop a test case for the
new setjmp/longjmp probes.  The probe argument in glibc is not going to
change, so I think this needs to be fixed before a test case can pass for
i686.  I think I'll try to develop the full test suite case and get it
working on x86-64, where there won't be this problem because it doesn't
happen to come up in those probe arguments.

For reference, here is the program I was using when I filed that PR.


#include <stdio.h>
#include <setjmp.h>

struct env
{
  jmp_buf jmp;
};

struct env saved;

void __attribute__ ((noinline))
bar (struct env *env, int x)
{
  if (x == 0)
    siglongjmp (env->jmp, 1);
}

void __attribute__ ((noinline))
foo (void)
{
  if (sigsetjmp (saved.jmp, 1) == 0)
    {
      puts ("foo the first time");
      bar (&saved, 0);
    }
  else
    puts ("foo the second time");
}

int
main (void)
{
  foo ();
  return 0;
}