[RFA] x86_64_skip_prologue again...

[Michal Ludvig <mludvig@suse.cz>]

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Hi all,
now x86_64_skip_prologue() works even on functions without debug 
information.

2002-06-05  Michal Ludvig  <mludvig@suse.cz>

	* x86-64-tdep.c (x86_64_skip_prologue): Fix to work on functions
	 without debug information too.

Easy one. Can I commit?

Michal Ludvig
-- 
* SuSE CR, s.r.o     * mludvig@suse.cz
* +420 2 9654 5373   * http://www.suse.cz

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Index: x86-64-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/x86-64-tdep.c,v
retrieving revision 1.20
diff -c -3 -p -r1.20 x86-64-tdep.c
*** x86-64-tdep.c	27 May 2002 13:37:38 -0000	1.20
--- x86-64-tdep.c	5 Jun 2002 11:55:18 -0000
*************** x86_64_frameless_function_invocation (st
*** 845,854 ****
  CORE_ADDR
  x86_64_skip_prologue (CORE_ADDR pc)
  {
!   int i, firstline, currline;
    struct symtab_and_line v_sal;
    struct symbol *v_function;
!   CORE_ADDR salendaddr = 0, endaddr = 0;
  
    /* We will handle only functions beginning with:
       55          pushq %rbp
--- 845,854 ----
  CORE_ADDR
  x86_64_skip_prologue (CORE_ADDR pc)
  {
!   int i;
    struct symtab_and_line v_sal;
    struct symbol *v_function;
!   CORE_ADDR endaddr;
  
    /* We will handle only functions beginning with:
       55          pushq %rbp
*************** x86_64_skip_prologue (CORE_ADDR pc)
*** 876,893 ****
    if (!v_function || !v_function->ginfo.value.block || !v_sal.symtab)
      return pc;
  
-   firstline = v_sal.line;
-   currline = firstline;
-   salendaddr = v_sal.end;
    endaddr = v_function->ginfo.value.block->endaddr;
  
    for (i = 0; i < v_sal.symtab->linetable->nitems; i++)
!     if (v_sal.symtab->linetable->item[i].line > firstline
! 	&& v_sal.symtab->linetable->item[i].pc >= salendaddr
  	&& v_sal.symtab->linetable->item[i].pc < endaddr)
        {
  	pc = v_sal.symtab->linetable->item[i].pc;
- 	currline = v_sal.symtab->linetable->item[i].line;
  	break;
        }
  
--- 876,888 ----
    if (!v_function || !v_function->ginfo.value.block || !v_sal.symtab)
      return pc;
  
    endaddr = v_function->ginfo.value.block->endaddr;
  
    for (i = 0; i < v_sal.symtab->linetable->nitems; i++)
!     if (v_sal.symtab->linetable->item[i].pc >= pc
  	&& v_sal.symtab->linetable->item[i].pc < endaddr)
        {
  	pc = v_sal.symtab->linetable->item[i].pc;
  	break;
        }