[Bug gas/29559] gas generated incorrect debug info (top-level DW_TAG_unspecified_type DIE)

[nickc at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=29559

Nick Clifton <nickc at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at sourceware dot org   |nickc at redhat dot com

--- Comment #1 from Nick Clifton <nickc at redhat dot com> ---
Hi Tom,

  [For the record the patch that introduced this bug was intended to fix PR
29517].

>  <0><100>: Abbrev Number: 3 (DW_TAG_unspecified_type)
>  <0><101>: Abbrev Number: 1 (DW_TAG_compile_unit)

OK, so you are saying that the DW_TAG_unspecified_type is in the wrong place ?

Presumably it should be after DW_TAG_subprogram.  IE, something like this:

 <0><101>: Abbrev Number: 1 (DW_TAG_compile_unit)
    <102>   DW_AT_stmt_list   : 0x123
    <106>   DW_AT_low_pc      : 0x4004ac
    <10e>   DW_AT_high_pc     : 11
    <10f>   DW_AT_name        : test2.s
    <113>   DW_AT_comp_dir    : /home/vries/gdb_versions/devel
    <117>   DW_AT_producer    : GNU AS 2.39.50
    <11b>   DW_AT_language    : 32769   (MIPS assembler)
 <1><11d>: Abbrev Number: 2 (DW_TAG_subprogram)
    <11e>   DW_AT_name        : (indirect string, offset: 0x241): foo
    <122>   DW_AT_external    : 1
    <122>   DW_AT_type        : <0x133>
    <123>   DW_AT_low_pc      : 0x4004ac
    <12b>   DW_AT_high_pc     : 11
 <1><133>: Abbrev Number: 3 (DW_TAG_unspecified_type)

I will try to fix this.  I originally placed the unspecified tag at the start
of the CU information because I found that I could not otherwise compute the
correct offset for it.  I will just have to try harder.

Cheers
  Nick

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