| The Dwarf Standards Committee has been meeting since November, 1999,
to discuss revisions and extensions to the Dwarf 2 Standard. The participants are
people who are interested in debugging, both as compiler developers or as debugger
developers. Participation is open to anyone who is interested. We plan to
release a public review copy of the revised Dwarf specification in mid-2001. The Dwarf Standards Committee has decided that the modifications and extensions to the Dwarf 2 standard make complete upward compatibility with Dwarf 2 difficult and are sufficient to warrant naming the new standard Dwarf 3. The structure and organization of Dwarf 3 is the same as Dwarf 2. It is anticipated that converting from Dwarf 2 to Dwarf 3 will not be a difficult task. We have scheduled in person or teleconference meetings every two weeks at SGI in Mountain View, California, subject to cancelation if there are insufficient agenda items to warrant a meeting. A significant amount of our discussion is held on email: dwarf2@els.sgi.com. If you have questions about the Dwarf 3 standard or the committee, please contact the committee chair, Michael Eager. |
Documents:
Working Draft 7 (pdf) of the Dwarf 3 standard.
Working Draft 7 (pdf) with differences from the Dwarf 2.0 base document highlighted.
Important note: These are both internal working drafts. They
are subject to revision and modification and should not be relied on as standards.
Meeting minutes
Issues (proposal format) Recent changes are in bold type. Open Proposals, New Proposals, Accepted Proposals, Withdrawn or Rejected Proposals.
| Open Proposals | ||||
|---|---|---|---|---|
| ID | Status | Champion | Category | Descripton |
| New Proposals | ||||
|---|---|---|---|---|
| ID | Status | Champion | Category | Descripton |
| Accepted Proposals | ||||
|---|---|---|---|---|
| ID | Status | Champion | Category | Descripton |
| 991102.1 | A | D. Anderson | 64-bit | Modify field definitions for 64-bit arch |
| 991108.3 | A | D. Anderson | Editorial | Attribute spelling |
| 991108.4 | A | D. Anderson | Editorial | DW_form_ref ambiguous |
| 991108.5 | A | D. Anderson | Editorial | Lookup by address |
| 991108.6 | A | D. Anderson | Editorial | DW_OP_add |
| 991108.7 | A | D. Anderson | Editorial | DW_AT_const_value |
| 991108.9 | A | D. Anderson | Editorial | DW_OP_bregx |
| 991108.10 | A | J. Merrill | Editorial | Array bounds |
| 991108.11 | A | R. Brender | Fortran | Fortran90 arrays |
| 991110.1 | A | J. Merrill | C++ | Namespace support |
| 991118.1 | A | F. Burton | Language | Unicode support |
| 991129.1 | A | D. Anderson | Editorial | Pubnames and aranges headers |
| 991204.1 | A | D. Anderson | Editorial | Line operator clarification |
| 000131.1 | A | D. Anderson | Processor | Prolog identification |
| 000217.1 | A | F. Burton | Processor | Dwarf procedures |
| 000302.1 | A | R. Brender | Representation | Class constant FORM |
| 000305.1 | A | D. Anderson | C | Imaginary float |
| 000305.2 | A | D. Anderson | C | Restrict type |
| 000314.1 | A | R. Brender | Editorial | Dwarf vs Location expressions |
| 000323.1 | A | F. Burton | Java | Java LANG definition |
| 000323.2 | A | F. Burton | Java | Java Interface definition |
| 000330.1 | A | F. Burton | Representation | Call Frame extension |
| 000403.3 | A | R. Brender | Editorial | Statement prolog header |
| 000405.1 | A | J. Cownie | C++ | Global types section |
| 000406.1 | A | R. Brender | Editorial | Remove "Future Directions" |
| 000406.2 | A | R. Brender | Language | Add new C variant definitions |
| 000410.3 | A | D. Weatherford | Editorial | Add aliases "loclist", "lineptr", "macptr" |
| 000414.1 | A | R. Brender | Language | Add Ada & Cobol definitions |
| 000517.1 | A | D. Anderson | Editorial | .debug_pubnames definition |
| 000519.2 | A | R. Brender | Representation | Location list for data member |
| 000523.1 | A | R. Brender | Representation | Reconsider 991118.1 re UTF-8 |
| 000531.2 | A | R. Brender | Representation | Add DW_AT_entry_pc attribute |
| 000914.1 | A | R. Brender | Representation | Discontinuous Ranges |
| 000915.1 | A | R. Brender | Representation | Source Files |
| 000929.1 | A | R. Brender | Fortran | Fortran 90/95 Module Support |
| 001016.1 | A | R. Brender | Representation | Interludes (aka trampolines) |
| 001018.1 | A | R. Brender | Representation | Unspecified type |
| 001012.1 | A | D. Anderson | Representation | Factored Offset |
| 001113.1 | A | M. Eager | Processor | Mulitple ISA Support |
| 010219.1 | A | D. Anderson | Compression | Duplicate Dwarf elimination |
| 010221.1 | A | R. Brender | Representation | Multisection Location and Range Lists |
| 010322.1 | A | M. Eager | Representation | Permit AT_location with AT_declaration |
| 010228.1 | A | T. Allen | Representation | Generalize DW_AT_specification |
| 010301.1 | A | T. Allen | Ada | Out-of-line package initialization |
| 010301.3 | A | T. Allen | Representation | Thin inlines |
| 010301.2 | A | T. Allen | Ada | Nested inlines |
| 010322.2 | A | T. Allen | Ada | DW_FORM_ref_addr cross shared lib boundaries |
| 010302.1 | A | T. Allen | Ada | DW_AT_description attribute |
| 010302.2 | A | T. Allen | Ada | Byte size and bit offset as object attributes |
| 010503.1 | A | T. Allen | Representation | Call references between shared library |
| 010709.1 | A | M. Eager | Language | Add DW_TAG_mutable_type |
| 010710.1 | A | R. Brender | Representation | Eliminate DW_OP_calli |
| 010710.2 | A | D. Anderson | Representation | Change return reg CIE to LEB |
| 010812.1 | A | D. Anderson | Representation | .debug_frame, SP recovery |
| 010828.1 | A | A. Dunsmuir | Lanuage | DW_LANG for PL/I |
| Withdrawn or Rejected Proposals | ||||
|---|---|---|---|---|
| ID | Status | Champion | Category | Descripton |
| 991007.1 | W | F. Burton | Decompose Dwarf2 compilation units | |
| 991026.3 | W | Dehnert/Anderson | Compression | Duplicate Dwarf data deletion |
| 991026.5 | W | Optimized | Register overloading | |
| 991026.7 | W | C++/Java | Name demangling | |
| 991115.1 | R | J. Merrill | C++ | Template support |
| 991108.1 | W | M. Eager | Processor | Multiple instruction set support |
| 991108.2 | R | F. Burton | C++ | Virtual functions |
| 991108.8 | W | D. Anderson | Editorial | Attribute Encodings |
| 991108.12 | W | D. Anderson | Fortran | Fortran90 allocatable arrays |
| 991108.13 | R | M. Eager | Processor | Unwinding stacks |
| 000223.1 | R | J. Merrill | Editorial | DW_AT_data_member_location |
| 000302.2 | R | J. Cownie | Representation | Attribute extensibility |
| 000331.1 | W | R. Brender | 64-bit | Dwarf files over 4Gb |
| 000403.1 | W | F. Burton | Processor | Call frame return register |
| 000410.1 | W | D. Weatherford | Editorial | FORM_ref_addr |
| 000410.2 | W | D. Weatherford | Representation | New FORMs DW_AT_linep, locp, macp |
| 000428.1 | R | R. Brender | Editorial | Rename DW_FORM_ref_addr |
| 000428.2 | W | R. Brender | Representation | Add DW_ATE_wchar_t |
| 000517.2 | W | B. Nettleton | Representation | Line Number Table Is_Stmt |
| 000519.1 | W | Brender/Walker | Representation | Factored offset |
| 000531.1 | W | R. Brender | Representation | Add DW_AT_pc_ranges attribute |
| 001101.1 | W | R. Brender | Representation | Discontiguous scopes |
| 001130.1 | W | R. Brender | Representation | Discontiguous scopes |
| 001213.1 | W | R. Brender | Representation | Default location attribute |
| 010205.1 | W | R. Brender | Representation | Discontiguous scopes |
| 010301.4 | W | T. Allen | Ada | Calling nested subroutines |
| 010322.3 | W | T. Allen | Ada | DW_OP_calli across shared library boundaries |