Re: Problems while debugging fortran

[Carlos Eduardo Seo <cseo at linux dot vnet dot ibm dot com>]

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Joel Brobecker wrote:
> [moving to gdb-patches]
>
> This is close to what I had in mind, but I would personally prefer
> to limit this to Fortran compilation units.  The semantics of this
> attribute value are still a bit unclear, and I'd like us to be cautious
> in its usage.
>
Restricted this to Fortran.  Ok to commit now?

- --
Carlos Eduardo Seo
Software Engineer
IBM Linux Technology Center
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2007-10-25  Wu Zhou  <woodzltc@cn.ibm.com>
	    Carlos Eduardo Seo  <cseo@linux.vnet.ibm.com>

	* dwarf2read.c (read_partial_die): check the value
	of DW_AT_calling_convention in Fortran programs.

Index: src/gdb/dwarf2read.c
===================================================================
--- src.orig/gdb/dwarf2read.c
+++ src/gdb/dwarf2read.c
@@ -5616,6 +5616,13 @@ read_partial_die (struct partial_die_inf
         case DW_AT_byte_size:
           part_die->has_byte_size = 1;
           break;
+	case DW_AT_calling_convention:
+	  /* DWARF standard suggests to use value DW_CC_program of attribute
+	   DW_AT_calling_convention to indicate the Fortran main program.
+	   The following code is to check this.  */
+	  if ((DW_UNSND (&attr) == DW_CC_program) && (cu->language == language_fortran))
+	    set_main_name (part_die->name);
+	  break;
 	default:
 	  break;
 	}

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