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* dwarf2read.c (read_partial_die): check the value

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of DW_AT_calling_convention in Fortran programs.
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Carlos Eduardo Seo 2007-10-25 20:54:27 +00:00
parent 5876dc880e
commit 68511cecac
2 changed files with 26 additions and 0 deletions
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7
gdb/ChangeLog
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@ -1,3 +1,10 @@
2007-10-25 Wu Zhou <woodzltc@cn.ibm.com>
Carlos Eduardo Seo <cseo@linux.vnet.ibm.com>
Jim Blandy <jimb@codesourcery.com>
* dwarf2read.c (read_partial_die): check the value
of DW_AT_calling_convention in Fortran programs.
2007-10-25 Wu Zhou <woodzltc@cn.ibm.com>
Thiago Jung Bauermann <bauerman@br.ibm.com>

19
gdb/dwarf2read.c
View file

@ -5619,6 +5619,25 @@ read_partial_die (struct partial_die_info *part_die,
case DW_AT_byte_size:
part_die->has_byte_size = 1;
break;
case DW_AT_calling_convention:
/* DWARF doesn't provide a way to identify a program's source-level
entry point. DW_AT_calling_convention attributes are only meant
to describe functions' calling conventions.
However, because it's a necessary piece of information in
Fortran, and because DW_CC_program is the only piece of debugging
information whose definition refers to a 'main program' at all,
several compilers have begun marking Fortran main programs with
DW_CC_program --- even when those functions use the standard
calling conventions.
So until DWARF specifies a way to provide this information and
compilers pick up the new representation, we'll support this
practice. */
if (DW_UNSND (&attr) == DW_CC_program
&& cu->language == language_fortran)
set_main_name (part_die->name);
break;
default:
break;
}