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Re: [RFA] Add dwarf4 values to include/dwarf2.h
- From: Doug Evans <dje at google dot com>
- To: binutils at sourceware dot org, gcc-patches at gcc dot gnu dot org
- Cc: gdb-patches at sourceware dot org, ccoutant at google dot com, Tom Tromey <tromey at redhat dot com>
- Date: Mon, 20 Jul 2009 14:06:02 -0700
- Subject: Re: [RFA] Add dwarf4 values to include/dwarf2.h
- References: <20090716205428.8CCBB846E6@localhost>
On Thu, Jul 16, 2009 at 1:54 PM, Doug Evans<dje@google.com> wrote:
> Hi.
>
> This patch adds various dwarf4 elements, plus DW_AT_GNU_odr_signature,
> to include/dwarf2.h.
>
> Ok to check in?
>
> [I have a gdb patch that's ready to go in to support "comdat types".
> And this will also be needed for the gcc side, which is currently
> on the dwarf4 branch.]
>
> 2009-07-15 ?Doug Evans ?<dje@google.com>
> ? ? ? ? ? ?Cary Coutant ?<ccoutant@google.com>
>
> ? ? ? ?* dwarf2.h (enum dwarf_tag): Add DW_TAG_type_unit.
> ? ? ? ?(enum dwarf_form): Add DW_FORM_sec_offset, DW_FORM_exprloc,
> ? ? ? ?DW_FORM_flag_present, DW_FORM_sig8.
> ? ? ? ?(enum dwarf_attribute): Add DW_AT_signature, DW_AT_GNU_odr_signature.
>
> diff -u -p -r1.2 dwarf2.h
> --- dwarf2.h ? ?9 Jul 2009 21:01:15 -0000 ? ? ? 1.2
> +++ dwarf2.h ? ?14 Jul 2009 23:22:35 -0000
> @@ -194,6 +194,8 @@ enum dwarf_tag
> ? ? DW_TAG_imported_unit = 0x3d,
> ? ? DW_TAG_condition = 0x3f,
> ? ? DW_TAG_shared_type = 0x40,
> + ? ?/* DWARF 4. ?*/
> + ? ?DW_TAG_type_unit = 0x41,
>
> ? ? DW_TAG_lo_user = 0x4080,
> ? ? DW_TAG_hi_user = 0xffff,
> @@ -244,7 +246,12 @@ enum dwarf_form
> ? ? DW_FORM_ref4 = 0x13,
> ? ? DW_FORM_ref8 = 0x14,
> ? ? DW_FORM_ref_udata = 0x15,
> - ? ?DW_FORM_indirect = 0x16
> + ? ?DW_FORM_indirect = 0x16,
> + ? ?/* DWARF 4. ?*/
> + ? ?DW_FORM_sec_offset = 0x17,
> + ? ?DW_FORM_exprloc = 0x18,
> + ? ?DW_FORM_flag_present = 0x19,
> + ? ?DW_FORM_sig8 = 0x20
> ? };
>
> ?/* Attribute names and codes. ?*/
> @@ -342,6 +349,8 @@ enum dwarf_attribute
> ? ? DW_AT_elemental ? ? = 0x66,
> ? ? DW_AT_pure ? ? ? ? ?= 0x67,
> ? ? DW_AT_recursive ? ? = 0x68,
> + ? ?/* DWARF 4 values. ?*/
> + ? ?DW_AT_signature ? ? = 0x69,
>
> ? ? DW_AT_lo_user = 0x2000, ? ?/* Implementation-defined range start. ?*/
> ? ? DW_AT_hi_user = 0x3ff0, ? ?/* Implementation-defined range end. ?*/
> @@ -381,6 +390,7 @@ enum dwarf_attribute
> ? ? DW_AT_body_begin = 0x2105,
> ? ? DW_AT_body_end ? = 0x2106,
> ? ? DW_AT_GNU_vector = 0x2107,
> + ? ?DW_AT_GNU_odr_signature = 0x210f,
> ? ? /* VMS extensions. ?*/
> ? ? DW_AT_VMS_rtnbeg_pd_address = 0x2201,
> ? ? /* UPC extension. ?*/
>
>
Hi.
I checked this into both gcc/binutils trees, without DW_AT_GNU_odr_signature.
[approved by Ian off-list]