blob: 498cf0b79de0d2bc22a0c386f3f2f25e34373777 [file] [log] [blame]
2019-07-05 Omar Sandoval <>
* (libdw_so_LIBS): Replace libebl.a with libebl_pic.a.
Move libebl_pic.a to the beginning so that libdw symbols are resolved.
(libdw_so_LDLIBS): Remove -ldl.
( Remove -rpath.
(libdw_a_LIBADD): Add libebl, libebl_backends, and libcpu objects.
2019-08-25 Jonathon Anderson <>
* dwarf_getcfi.c (dwarf_getcfi): Set default_same_value to false.
2019-08-12 Mark Wielaard <>
* (ELFUTILS_0.177): Add new version of dwelf_elf_begin.
2019-06-28 Mark Wielaard <>
* (ELFUTILS_0.177): New section. Add
2019-05-16 Mark Wielaard <>
* dwarf.h: Add DW_AT_GNU_numerator, DW_AT_GNU_denominator and
2019-04-28 Mark Wielaard <>
* dwarf_siblingof.c (dwarf_siblingof): Don't initialize addr.
2019-04-28 Mark Wielaard <>
* dwarf_getlocation.c (dwarf_getlocation_addr): Call
check_constant_offset with llbufs and listlens directly.
2019-04-27 Mark Wielaard <>
* dwarf_getlocation.c (store_implicit_value): Check dbg isn't
2019-02-02 Mark Wielaard <>
* dwarf_nextcu.c (__libdw_next_unit): Define bytes_end.
Check there are enough bytes to read extended lenght, version
and unit.
2019-01-20 Mark Wielaard <>
* dwarf_getsrclines.c (read_srclines): Check terminating NUL byte
for dir and file lists.
2018-10-23 Mark Wielaard <>
* dwarf_child.c (__libdw_find_attr): Initialize readp to NULL.
* dwarf_getattrs.c (dwarf_getattrs): Initialize die_addr to NULL.
2018-10-20 Mark Wielaard <>
* (ELFUTILS_0.175): New section. Add dwelf_elf_begin.
2018-10-29 Milian Wolff <>
* dwarf_getcfi_elf.c (getcfi_shdr): Check sh_type != SHT_NOBITS.
2018-09-13 Mark Wielaard <>
* dwarf_begin_elf.c (check_section): Drop ehdr argument, add and
use shstrndx argument.
(global_read): Likewise.
(scngrp_read): Likewise.
(dwarf_begin_elf): Call elf_getshdrstrndx. Pass shstrndx to
global_read or scngrp_read.
2018-08-18 Mark Wielaard <>
* dwarf_getabbrev.c (__libdw_getabbrev): Continue until both name
and form are zero.
* dwarf_hasattr.c (dwarf_hasattr): Stop when both name and form
are zero.
2018-08-18 Mark Wielaard <>
* dwarf_getaranges.c (dwarf_getaranges.c): Make sure there is enough
data to read the address and segment size.
2018-07-04 Ross Burton <>
* libdw_alloc.c: Remove error.h include.
2018-06-28 Mark Wielaard <>
* dwarf_next_cfi.c (dwarf_next_cfi): Check whether length is zero.
2018-06-27 Mark Wielaard <>
* dwarf_begin_elf.c (check_section): Allow a single .debug_frame
2018-06-26 Mark Wielaard <>
* libdw.h (dwarf_getscn_info): Remove.
* (ELFUTILS_0.122): Remove dwarf_getscn_info.
2018-06-25 Mark Wielaard <>
* (libdw_a_SOURCES): Add dwarf_next_lines.c.
* libdw.h (dwarf_next_lines): New function declaration.
* (ELFUTILS_0.173): New section.
* dwarf_next_lines.c: New files.
* dwarf_begin_elf.c (check_section): Don't error out when elf
decompression fails.
(valid_p): Allow just a single .debug_line section.
* dwarf_getsrclines.c (read_srclines): Keep files relative if comp_dir
is missing.
2018-06-22 Mark Wielaard <>
* dwarf_nextcu.c (__libdw_next_unit): Set next_off to -1 when it would
wrap around.
2018-06-18 Mark Wielaard <>
* dwarf_aggregate_size.c (array_size): New depth argument. Use
aggregate_size instead of dwarf_aggregate_size and pass depth.
(aggregate_size): New depth argument. Check depth isn't bigger
than MAX_DEPTH (256). Pass depth to recursive calls.
(dwarf_aggregate_size): ass zero as depth to aggregate_size.
2018-06-18 Mark Wielaard <>
* dwarf_peel_type.c (dwarf_peel_type): Limit modifier chain to 64.
2018-06-18 Mark Wielaard <>
* dwarf_aggregate_size.c (aggregate_size): Check die is not NULL.
2018-06-17 Luiz Angelo Daros de Luca <>
* dwarf_getsrclines.c (read_srclines): Intialize filelist early.
2018-06-15 Mark Wielaard <>
* dwarf_getlocation.c (check_constant_offset): Clarify DW_FORM_data16
isn't really a constant.
(dwarf_getlocation): Don't handle DW_FORM_data16 as block.
(dwarf_getlocation_addr): Likewise.
(dwarf_getlocations): Likewise.
2018-06-12 Mark Wielaard <>
* memory-access.h (read_3ubyte_unaligned_inc): New define.
2018-06-12 Mark Wielaard <>
* libdw.h (__libdw_dieabbrev): Set die->abbrev to DWARF_END_ABBREV
on failure.
2018-06-10 Mark Wielaard <>
* dwarf_attr_integrate.c (dwarf_attr_integrate): Stop after 16 DIE
ref chains.
* dwarf_hasattr_integrate.c (dwarf_hasattr_integrate): Likewise.
2018-06-08 Mark Wielaard <>
* dwarf_getabbrev.c (dwarf_getabbrev): Check die and offset.
2018-06-08 Mark Wielaard <>
* dwarf_get_units.c (dwarf_get_units): Handle existing error, no
2018-06-08 Mark Wielaard <>
* dwarf_getlocation.c (store_implicit_value): Return error when
seeing bad DWARF or when tsearch runs out of memory.
(__libdw_intern_expression): Report error when store_implicit_value
reported an error.
2018-06-08 Mark Wielaard <>
* dwarf_getsrclines.c (read_srclines): Sanity check ndirs and nfiles.
2018-06-08 Mark Wielaard <>
* dwarf_getlocation_attr.c (addr_valp): Set error and return NULL
when there is no .debug_addr section.
(dwarf_getlocation_attr): If addr_valp returns NULL, then return -1.
2018-06-07 Mark Wielaard <>
* libdw_findcu.c (__libdw_intern_next_unit): Report DWARF_E_VERSION,
not DWARF_E_INVALID_DWARF on unknown version. Set address_size and
offset_size to 8 when unknown.
2018-06-06 Mark Wielaard <>
* libdwP.h (__libdw_dieabbrev): Check DIE addr falls in cu.
2018-06-06 Mark Wielaard <>
* dwarf_getlocation_die.c (dwarf_getlocation_die): Check offset
falls inside cu data.
2018-06-05 Mark Wielaard <>
* dwarf_getsrclines.c (read_srclines): Explicitly set diridx to -1
in case dwarf_formudata fails.
2018-06-05 Mark Wielaard <>
* dwarf_getaranges (dwarf_getaranges): Free new_arange if
__libdw_findcu fails.
2018-06-05 Mark Wielaard <>
* dwarf_getsrclines.c (read_srclines): Define dirarray early and
check whether or not it is equal to dirstack on exit/out before
2018-06-05 Mark Wielaard <>
* dwarf_getalt.c (find_debug_altlink): id_path array should be 2
larger to contain MAX_BUILD_ID_BYTES.
2018-05-31 Mark Wielaard <>
* libdw_find_split_unit.c (try_split_file): New function extracted
(__libdw_find_split_unit): ... here. Try both the relative and
absolute paths to find a .dwo file.
2018-05-30 Mark Wielaard <>
* libdw/dwarf_getsrclines.c (read_srclines): Change ndir and
ndirlist to size_t. Add check to see ndirlist doesn't overflow.
2018-05-31 Mark Wielaard <>
* dwarf_dieoffset.c: Check die->cu != NULL. Return -1, not ~0ul
on failure.
2018-05-29 Mark Wielaard <>
* dwarf_cuoffset.c (dwarf_cuoffset): Check die->cu is not NULL.
* dwarf_die_addr_die.c (dwarf_die_addr_die): Also search split
* libdwP.h (struct Dwarf): Add split_tree field.
(__libdw_find_split_dbg_addr): New internal function definition.
(__libdw_finddbg_cb): Likewise.
* libdw_find_split_unit.c (__libdw_find_split_unit): Insert split
Dwarf into skeleton dbg split_tree.
* libdw_findcu.c (__libdw_finddbg_cb): New function.
(__libdw_find_split_dbg_addr): Likewise.
* dwarf_end (dwarf_end): Destroy split_tree.
2018-05-29 Mark Wielaard <>
* dwarf.h: Add GNU DebugFission list entry encodings
DW_LLE_GNU_start_end_entry and DW_LLE_GNU_start_length_entry.
* dwarf_ranges.c (__libdw_read_begin_end_pair_inc): Handle
GNU DebugFission list entries.
2018-05-28 Mark Wielaard <>
* libdw_find_split_unit.c (__libdw_find_split_unit): End split_dwarf
only after we tried every unit id in it.
2018-04-07 Mark Wielaard <>
* libdwP.h (struct Dwarf_CU): Add locs_base.
(__libdw_cu_locs_base): New static inline function.
* libdw_findcu.c (__libdw_intern_next_unit): Initialize locs_base.
* dwarf_begin_elf.c (valid_p): Create fake_loclists_cu if necessary.
* dwarf_end.c (dwarf_end): Clean up fake_loclists_cu.
* dwarf_getlocation.c (initial_offset): Handle .debug_loclists.
(getlocations_addr): Likewise.
(dwarf_getlocation_addr): Likewise.
* dwarf_getlocation_attr.c (attr_form_cu): Use fake_loclists_cu for
(initial_offset): Handle DW_FORM_loclistx.
* dwarf_ranges.c (__libdw_read_begin_end_pair_inc): Handle
* libdwP.h (struct Dwarf): Add fake_loclists_cu.
2018-04-12 Mark Wielaard <>
* dwarf.h: Add DWARF5 location list entry DW_LLE encodings.
* begin_elf.c (dwarf_scnnames): Add IDX_debug_loclists.
* dwarf_error.c (errmsgs): Remove DWARF_E_NO_LOCLIST. And replace
* dwarf_formudata.c (dwarf_formudata): Handle DW_AT_loclists_base
and DW_FORM_loclistx.
* dwarf_getlocation.c (attr_ok): Use DWARF_E_NO_LOC_VALUE.
(initial_offset): Use DWARF_E_NO_DEBUG_LOC.
* libdwP.h: Add IDX_debug_rnglists. Remove DWARF_E_NO_LOCLIST.
2018-05-25 Mark Wielaard <>
* libdw_find_split_unit.c (__libdw_find_split_unit): Extract linking
skeleton and split compile units code into...
* libdwP (__libdw_link_skel_split): ...this new function.
2018-04-06 Mark Wielaard <>
* dwarf_formaddr.c (__libdw_addrx): New function, extracted from...
(dwarf_formaddr): here. Use __libdw_addrx.
* dwarf_getlocation.c (getlocations_addr): Pass cu to
* dwarf_ranges.c (__libdw_read_begin_end_pair_inc): Take cu as
argument. Handle .debug_rnglists.
(initial_offset): Handle .debug_rnglists and DW_FORM_rnglistx.
(dwarf_ranges): Likewise. Check cu isn't NULL before use. Pass cu to
* libdwP.h (__libdw_read_begin_end_pair_inc): Take cu as argument.
(__libdw_cu_ranges_base): Handle DW_AT_rnglists_base.
(__libdw_addrx): New function definition.
2018-04-11 Mark Wielaard <>
* dwarf.h: Add DWARF5 range list entry DW_RLE encodings.
* begin_elf.c (dwarf_scnnames): Add IDX_debug_rnglists.
* dwarf_error.c (errmsgs): Add DWARF_E_NO_DEBUG_RNGLISTS.
* dwarf_formudata.c (dwarf_formudata): Handle DW_AT_rnglists_base
and DW_FORM_rnglistx.
* dwarf_getscopes.c (pc_match): Also check for
* libdwP.h: Add IDX_debug_rnglists.
2018-05-25 Mark Wielaard <>
* dwarf_getlocation_attr.c (__libdw_cu_addr_base): Cast offset to
uintptr_t before returning as pointer.
2018-05-22 Mark Wielaard <>
* dwarf_getlocation.c (__libdw_cu_base_address): Treat errors of
getting lowpc or entrypc the same as missing base address (zero).
* dwarf_highpc (dwarf_highpc): Handle any address form. Always set
error when attribute could not be found.
2018-05-21 Mark Wielaard <>
* dwarf_begin_elf.c (valid_p): Add a fake_addr_cu to the result.
* dwarf_end.c (cu_free): Disconnect the fake_addr_cu from the split
dwarf if shared with skeleton.
(dwarf_end): release fake_addr_cu.
* dwarf_formaddr.c (__libdw_cu_addr_base): Move to...
* libdwP.h (__libdw_cu_addr_base): ... here.
(struct Dwarf): Add fake_addr_cu field.
* dwarf_formudata.c (dwarf_formudata): Handle
DW_FORM_GNU_addr_index and DW_FORM_addrx[1234].
* dwarf_getlocation_attr.c (addr_valp): New static function.
(dwarf_getlocation_attr): Create attribute for values of
DW_OP_GNU_const_index, DW_OP_constx and DW_OP_GNU_addr_index and
* libdw_find_split_unit.c (__libdw_find_split_unit): Connect
IDX_debug_addr sectiondata and fake_addr_cu between split and
2018-05-20 Mark Wielaard <>
* dwarf_cu_info.c: New file.
* (libdw_a_SOURCES): Add dwarf_cu_info.c.
* libdw.h (dwarf_cu_info): New function declaration.
* (ELFUTILS_0.171): Add dwarf_cu_info.
2018-05-24 Mark Wielaard <>
* dwarf_ranges.c (dwarf_ranges): Check for NULL cu.
* libdw_findcu.c (__libdw_intern_next_unit): Initialize ranges_base.
2018-05-18 Mark Wielaard <>
* dwarf_formudata.c (__libdw_formptr): Handle the special case
of IDX_debug_ranges for DW_UT_split_compile with version < 5.
* dwarf_highpc.c (dwarf_highpc): Use dwarf_lowpc, check for
split compile cudie.
* dwarf_lowpc.c (dwarf_lowpc): Check for split compile cudie.
* dwarf_ranges.c (dwarf_ranges): Switch cu and sectiondata for
split compile units.
* libdwP.h (struct Dwarf_CU): Add ranges_base field.
(__libdw_cu_ranges_base): New static inline function.
2018-05-18 Mark Wielaard <>
* libdw_findcu.c (__libdw_intern_next_unit): Init files to NULL.
* dwarf_getsrclines.c (dwarf_getsrclines): Handle split units by
taking the line table from the skeleton.
* dwarf_getsrcfiles.c (dwarf_getsrcfiles): Handle split units by
only taking the files from .debug_line offset zero (if it exists),
otherwise fall back to the skeleton.
2018-05-17 Mark Wielaard <>
* dwarf_begin_elf.c (__libdw_debugdir): New function.
(valid_p): Call __libdw_debugdir.
* dwarf_end.c (dwarf_end.c): Free debugdir.
* dwarf_getalt.c (__libdw_filepath): Extract __libdw_debugdir logic.
take debugdir as argument instead of fd.
(find_debug_altlink): Call __libdw_filepath with debugdir.
* libdwP.h (struct Dwarf): Add debugdir field.
(__libdw_debugdir): New function prototype.
(__libdw_filepath): Adjust prototype to take a const char * instead of
an int.
* libdw_find_split_unit.c (__libdw_find_split_unit): Call
__libdw_filepath with debugdir.
2018-05-17 Mark Wielaard <>
* dwarf_attr_integrate.c (dwarf_attr_integrate): Handle split_compile
unit DIE, search skeleton_compile unit DIE.
* dwarf_hasattr_integrate.c (dwarf_hasattr_integrate): Likewise.
* libdwP.h (is_cudie): Check cu is not NULL.
2018-05-19 Mark Wielaard <>
* libdwP.h (__libdw_find_split_unit): Mark as internal_function.
2018-05-15 Mark Wielaard <>
* (libdw_a_SOURCES): Add libdw_find_split_unit.c.
* dwarf_end.c (cu_free): Free split Dwarf.
* dwarf_get_units.c (dwarf_get_units): Handle DW_UT_skeleton by
calling __libdw_find_split_unit.
* libdwP.h (struct Dwarf_CU): Add split Dwarf_CU field.
(__libdw_find_split_unit): New function prototype.
(str_offsets_base_off): Use cu Dwarf if dbg is NULL.
(filepath): Rename to ...
(__libdw_filepath): This. Which is the actual function name in
(libdw_find_split_unit.c): New file.
* libdw_findcu.c (__libdw_intern_next_unit): Initialize split to -1.
2018-05-15 Mark Wielaard <>
* libdwP.h (__libdw_first_die_from_cu_start): Adjust commented out
* libdw_findcu.c (__libdw_intern_next_unit): For version 4 DWARF if
the cudie has a DW_AT_GNU_dwi_id set the unit_id8 and unit_type to
DW_UT_skeleton or DW_UT_split_compile based on whether the cudie has
child DIEs and a DW_AT_GNU_dwo_name attribute.
2018-05-14 Mark Wielaard <>
* dwarf.h: Add GNU Debug Fission extensions. DW_AT_GNU_dwo_name,
DW_AT_GNU_dwo_id, DW_AT_GNU_ranges_base, DW_AT_GNU_addr_base,
DW_AT_GNU_pubnames, DW_AT_GNU_pubtypes. DW_FORM_GNU_addr_index,
DW_FORM_GNU_str_index. DW_OP_GNU_addr_index, DW_OP_GNU_const_index.
* dwarf_formaddr.c (dwarf_formaddr): Handle DW_FORM_GNU_addr_index
as DW_FORM_addrx.
(__libdw_cu_addr_base): Check for both DW_AT_GNU_addr_base and
* dwarf_formstring.c (dwarf_formstring): Handle DW_FORM_GNU_str_index
as DW_FORM_strx.
* dwarf_formudata.c (dwarf_formudata): Recognize DW_AT_GNU_addr_base
as addrptr. Recognize DW_AT_GNU_ranges_base as rangelistptr.
* dwarf_getlocation.c (__libdw_intern_expression): Handle
DW_OP_GNU_addr_index as DW_OP_addrx and DW_OP_GNU_const_index as
* libdw_form.c (__libdw_form_val_compute_len): Handle
DW_FORM_GNU_addr_index and DW_FORM_GNU_str_index taking an uleb128.
2018-05-12 Mark Wielaard <>
* dwarf_begin_elf.c (check_section): Also recognize .dwo section
name variants.
2018-05-11 Mark Wielaard <>
* dwarf_formudata.c (dwarf_formudata): Handle DW_AT_macros as macptr.
* dwarf_getmacros.c (get_table_for_offset): Add DW_MACRO_define_sup,
DW_MACRO_undef_sup, DW_MACRO_import_sup, DW_MACRO_define_strx and
DW_MACRO_undef_strx. Add str_offsets_base_off to fake CU. Deal with
DW_AT_macros. Use libdw_valid_user_form.
2018-05-09 Mark Wielaard <>
* dwarf_formstring.c (__libdw_cu_str_off_base): Moved to...
* libdwP.h (__libdw_cu_str_off_base): Make static inline.
(str_offsets_base_off): New internal function that also parses
.debug_str_offsets header if necessary.
2018-05-11 Mark Wielaard <>
* dwarf_siblingof.c (dwarf_siblingof): Don't reference cu till it is
known the Dwarf_Die is came from is valid.
* libdwP.h (__libdw_dieabbrev): Check cu is not NULL.
2018-05-08 Mark Wielaard <>
* dwarf_formref.c (__libdw_formref): Explicitly don't handle
DW_FORM_ref_sup4 and DW_FORM_ref_sup8.
* dwarf_formref_die.c (dwarf_formref_die): Handle DW_FORM_ref_sup4
and DW_FORM_ref_sup8.
* dwarf_formstring.c (dwarf_formstring): Handle DW_FORM_strp_sup
as DW_FORM_GNU_strp_alt.
2018-05-05 Mark Wielaard <>
* dwarf.h: Add DWARF line content descriptions.
* libdwP.h (libdw_valid_user_form): New static function.
* dwarf_getsrclines.c (read_srclines): Check and parse version 5
DWARF header, dir and file tables separately from older versions
where different.
2018-04-24 Mark Wielaard <>
* dwarf_begin_elf.c (dwarf_scnnames): Add ".debug_line_str".
* dwarf_error.c (errmsgs): Add DWARF_E_NO_DEBUG_STR and
* dwarf_formstring.c (dwarf_formstring): Handle DW_FORM_line_strp.
Get data from either .debug_str or .debug_line_str.
* libdwP.h: Add IDX_debug_line_str, DWARF_E_NO_DEBUG_STR and
2018-04-03 Mark Wielaard <>
* dwarf_formudata.c (__libdw_formptr): Take and return const
unsigned char pointers.
* dwarf_getlocation.c (attr_base_address): Rename to...
(__libdw_cu_base_address): this. Take Dwarf_CU, check and set
(initial_offset_base): Renamed to...
(initial_offset): this. Only provide offset.
(getlocations_addr): Move data size check and
address base addition into __libdw_read_begin_end_pair_inc. Use
__libdw_cu_base_address and initial_offset. Drop Elf_Data NULL
check (already done by initial_offset, through __libdw_formptr).
(dwarf_getlocations): Use __libdw_cu_base_address and initial_offset.
Drop Elf_Data NULL check.
* dwarf_ranges.c (__libdw_read_begin_end_pair_inc): Change argument
type of readp to Add readend argument. Check data size. Include base
in begin and end result.
(initial_offset): New static function.
(dwarf_ranges): Don't check Elf_Data being NULL (already done by
initial_offset, through __libdw_formptr). Use __libdw_cu_base_address
and initial_offset. Remove base check and addition (already done by
* libdwP.h (Dwarf_CU): Add base_address field.
(__libdw_read_begin_end_pair_inc): Change argument type of readp to
const. Add readend argument.
(__libdw_formptr): Take and return const unsigned char pointers.
* libdw_findcu.c (__libdw_intern_next_unit): Initialize Dwarf_CU
2018-04-04 Mark Wielaard <>
* libdw_findcu.c (__libdw_intern_next_unit): Initialize Dwarf_CU
addr_base and str_off_base.
2018-03-23 Mark Wielaard <>
* dwarf_begin_elf.c (dwarf_scnnames): Add IDX_debug_str_offsets,
increase size.
* dwarf_error.c (errmsgs): Add DWARF_E_NO_STR_OFFSETS.
* dwarf_formstring.c (dwarf_formstring): Handle DW_FORM_strx[1234].
(__libdw_cu_str_off_base): New function.
* dwarf_formudata.c (dwarf_formudata): Handle IDX_debug_str_offsets
as stroffsetsptr.
* libdwP.h: Add IDX_debug_str_offsets and DWARF_E_NO_STR_OFFSETS.
(struct Dwarf_CU): Add str_off_base field.
(__libdw_cu_str_off_base): New function declaration.
2018-03-22 Mark Wielaard <>
* dwarf_begin_elf.c (dwarf_scnnames): Add IDX_debug_addr.
* dwarf_error.c (errmsgs): Add DWARF_E_NO_DEBUG_ADDR.
* dwarf_formaddr.c (dwarf_formaddr): Handle DW_FORM_addrx[1234].
(__libdw_cu_addr_base): New function.
* dwarf_formudata.c (dwarf_formudata): Handle DW_AT_addr_base as
* libdwP.h: Add IDX_debug_addr and DWARF_E_NO_DEBUG_ADDR.
(struct Dwarf_CU): Add addr_base field.
(__libdw_cu_addr_base): New function definition.
* memory-access.h (file_byte_order): New static function.
(read_3ubyte_unaligned): New inline function.
2018-03-29 Mark Wielaard <>
* libdw.h (dwarf_decl_file): Extend documentation.
(dwarf_linesrc): Likewise.
(dwarf_filesrc): Likewise.
2018-03-06 Mark Wielaard <>
* dwarf.h: Add DW_OP_implicit_pointer, DW_OP_addrx, DW_OP_constx,
DW_OP_entry_value, DW_OP_const_type, DW_OP_regval_type,
DW_OP_deref_type, DW_OP_xderef_type, DW_OP_convert and
* dwarf_getlocation.c (__libdw_intern_expression): Handle
DW_OP_convert, DW_OP_reinterpret, DW_OP_addrx, DW_OP_constx,
DW_OP_regval_type, DW_OP_entry_value, DW_OP_implicit_pointer,
DW_OP_deref_type, DW_OP_xderef_type and DW_OP_const_type.
* dwarf_getlocation_attr.c (dwarf_getlocation_attr): Handle
DW_OP_entry_value, DW_OP_const_type and DW_OP_implicit_pointer.
* dwarf_getlocation_die.c (dwarf_getlocation_die): Handle
DW_OP_implicit_pointer, DW_OP_convert, DW_OP_reinterpret,
DW_OP_const_type, DW_OP_regval_type, DW_OP_deref_type and
* dwarf_getlocation_implicit_pointer.c
(dwarf_getlocation_implicit_pointer): Handle DW_OP_implicit_pointer.
2018-03-01 Mark Wielaard <>
* dwarf.h: Add DW_AT_GNU_locviews and DW_AT_GNU_entry_view.
* dwarf_formudata.c (dwarf_formudata): Handle DW_AT_GNU_locviews
as a loclistptr.
2018-02-09 Mark Wielaard <>
* dwarf_formblock.c (dwarf_formblock): Handle DW_FORM_data16 as a
16 byte block.
2018-02-09 Mark Wielaard <>
* dwarf_child.c (__libdw_find_attr): Handle DW_FORM_implicit_const.
* dwarf_formsdata.c (dwarf_formsdata): Likewise.
* dwarf_formudata.c (dwarf_formudata): Likewise.
* dwarf_getabbrev.c (__libdw_getabbrev): Likewise.
* dwarf_getattrs.c (dwarf_getattrs): Likewise.
* dwarf_hasattr.c (dwarf_hasattr): Likewise.
* dwarf_getabbrevattr.c (dwarf_getabbrevattr_data): New function
that will also return any data associated with the abbrev. Which
currently is only for DW_FORM_implicit_const. Based on...
(dwarf_getabbrevattr): ... this function. Which now just calls
* libdw.h (dwarf_getabbrevattr_data): Declare new function.
* (ELFUTILS_0.170): Add dwarf_getabbrevattr_data.
* libdwP.h (dwarf_getabbrevattr_data): INTDECL.
* memory-access.h (__libdw_get_sleb128_unchecked): New inlined
function based on __libdw_get_uleb128_unchecked.
2018-02-08 Mark Wielaard <>
* dwarf.h: Add DWARF5 DW_FORMs.
* libdwP.h (__libdw_form_val_compute_len): Handle fix length
DW_FORM_implicit_const, DW_FORM_addrx[1234], DW_FORM_strx[1234],
DW_FORM_ref_sup[48] and DW_FORM_data16.
* libdw_form.c (__libdw_form_val_compute_len): DW_FORM_strp_sup
and DW_FORM_line_strp are offset_size. DW_FORM_addrx, DW_FORM_strx,
DW_FORM_loclistx and DW_FORM_rnglistx are uleb128.
2018-01-30 Mark Wielaard <>
* (libdw_a_SOURCES): Add dwarf_get_units.c.
* dwarf_get_units.c: New file.
* libdw.h (dwarf_get_units): New function declaration.
* (ELFUTILS_0.170): Add dwarf_get_units.
2018-01-29 Mark Wielaard <>
* dwarf.h (DW_UT_*): Add DWARF Unit Header Types.
* dwarf_cu_die.c (dwarf_cu_die): Rename arguments. type_signaturep
is now called unit_idp. type_offsetp is now called subdie_offsetp.
* dwarf_formref_die.c (dwarf_formref_die): Scan both .debug_info
and .debug_types sections for type units when type signature ref
not found.
* dwarf_getaranges.c (dwarf_getaranges): Use __libdw_findcu and
__libdw_first_die_off_from_cu instead of trying by hand.
* dwarf_getlocation_die.c (dwarf_getlocation_die): Use ISV4TU
instead of checking type_offset by hand.
* dwarf_getlocation_implicit_pointer.c
(dwarf_getlocation_implicit_pointer): Likewise.
* dwarf_nextcu.c (dwarf_next_unit): Call __libdw_next_unit.
(__libdw_next_unit): New function based on dwarf_next_unit with
DWARF5 header support.
* libdwP.h (struct Dwarf_CU): Renamed type_offset to subdie_offset
and type_sig8 to unit_id8.
(ISV4TU): New macro to determine whether a CU is a version 4 type
unit (which comes from the .debug_types section).
(DIE_OFFSET_FROM_CU_OFFSET): Replaced macro by real function...
(__libdw_first_die_from_cu_start): ... that also handles DWARF5
unit headers.
(__libdw_first_die_off_from_cu): New function that calls the above
using the CU fields.
(CUDIE): Use __libdw_first_die_off_from_cu.
(SUBDIE): New macro that provides the DIE for a CU using the
(__libdw_next_unit): New internal function declaration.
* libdw_findcu.c (__libdw_intern_next_unit): Use __libdw_next_unit.
Accept DWARF version 5 headers. Setup unit_type.
(__libdw_findcu): Rename debug_types argument to v4_debug_types
argument (to indicate that we are looking in the .debug_types
section). Support finding the exact offset (unit header start).
2018-01-25 Mark Wielaard <>
* (libdw_a_SOURCES): Add dwarf_die_addr_die.c.
* dwarf_die_addr_die.c: New file.
* libdw.h (dwarf_die_addr_die): New function declaration.
* (ELFUTILS_0.171): New section with dwarf_die_addr_die.
* libdwP.h (__libdw_findcu_addr): New internal function declaration.
* libdw_findcu.c (__libdw_findcu_addr): New internal function.
2018-02-09 Joshua Watt <>
* cfi.c (execute_cfi): Use FALLTHROUGH macro instead of comment.
* dwarf_frame_register.c (dwarf_frame_register): Likewise.
2018-01-22 Mark Wielaard <>
* (AM_CPPFLAGS): Add -I libdwelf.
* dwarf_begin_elf.c (dwarf_begin_elf): Initialize Dwarf alt_fd to -1.
* dwarf_end.c (dwarf_end): Call dwarf_end and close on the alt_dwarf
and alt_fd if we allocated them.
* dwarf_fromref_die.c (dwarf_formref_die): Call dwarf_getalt.
* dwarf_formstring.c (dwarf_formstring): Likewise.
* dwarf_getalt.c (__libdw_filepath): New internal function.
(find_debug_altlink): New static function.
(dwarf_getalt): Check Dwarf alt_dwarf and call find_debug_altlink.
Cache result.
* dwarf_setalt.c (dwarf_setalt): Clean up Dwarf alt_dwarf and alt_fd
if we allocated.
* libdw.h (dwarf_getalt): Extend documentation.
(dwarf_setalt): Likewise.
* libdwP.h (struct Dwarf): Add alt_fd field.
(filepath): Declare new internal function.
2018-01-14 Petr Machata <>
* dwarf_formsdata.c (dwarf_formsdata):
<DW_FORM_data1>: Cast to signed char.
<DW_FORM_data2,4,8>: Use read_*sbyte_unaligned instead of
2017-12-26 Mark Wielaard <>
* libdwP.h (struct Dwarf_Abbrev): Pack struct. Remove attrcnt,
use bitfields for has_children and code.
* dwarf_getabbrev.c (__libdw_getabbrev): Don't count attrs.
* dwarf_getattrcnt.c (dwarf_getattrcnt): Count attrs.
2017-12-26 Mark Wielaard <>
* memory-access.h (__libdw_get_uleb128_unchecked): New function.
(get_uleb128_unchecked): New define.
* dwarf_child.c (__libdw_find_attr): Use get_uleb128_unchecked to
read attr name and form.
* dwarf_getabbrevattr.c (dwarf_getabbrevattr): Likewise.
* dwarf_getattrs.c (dwarf_getattrs): Likewise.
* dwarf_hasattr.c (dwarf_hasattr): Likewise.
2017-12-28 Mark Wielaard <>
* dwarf_offdie.c (__libdw_offdie): Check sectiondata exists.
2017-05-09 Ulf Hermann <>
Mark Wielaard <>
* libdwP.h (__libdw_in_section): Fix check for the upper border of
the range.
(__libdw_offset_in_section): Likewise.
2017-12-20 Mark Wielaard <>
* libdwP.h (struct Dwarf_CU): Add sec_idx field.
(cu_sec_idx): Return cu->sec_idx.
* libdw_findcu.c (__libdw_intern_next_unit): Set cu sec_idx to
IDX_debug_info or IDX_debug_types.
* dwarf_begin_elf.c (valid_p): Set fake_loc_cu->sec_idx to
* dwarf_getmacros.c (read_macros): Set fake_cu->sec_idx to
IDX_debug_macro or IDX_debug_macinfo.
2017-12-12 Mark Wielaard <>
* dwarf_aggregate_size.c (dwarf_aggregate_size): Don't peel the
given DIE. Reserve memory for a new DIE first.
2017-12-11 Dima Kogan <>
* dwarf_aggregate_size.c (array_size): Handle multi-dimensional
arrays properly.
2017-11-03 Mark Wielaard <>
* dwarf_getlocation.c (__libdw_intern_expression): Handle
* dwarf_getlocation_attr.c (dwarf_getlocation_attr): Likewise.
* dwarf_getlocation_die.c (dwarf_getlocation_die): Likewise.
2017-11-03 Mark Wielaard <>
* dwarf_getlocation.c (attr_ok): Always accept DW_FORM_exprloc.
Update list of acceptable attribute codes based on DWARF5.
2017-11-03 Mark Wielaard <>
* dwarf.h: Add DW_OP_GNU_variable_value.
2017-10-03 Mark Wielaard <>
* libdw.h: Define LIBDW_CIE_ID and use it in dwarf_cfi_cie_p.
2017-08-18 Ulf Hermann <>
* memory-access.h: Use attribute_packed.
2017-02-27 Ulf Hermann <>
* libdwP.h: Use attribute_hidden.
* libdw_alloc.c: Likewise.
2017-02-27 Ulf Hermann <>
* Use fpic_CFLAGS and dso_LDFLAGS.
2017-07-26 Mark Wielaard <>
* dwarf.h: Add DW_MACRO_* and compat defines for DW_MACRO_GNU_*.
* dwarf_getmacros.c (get_table_for_offset): Accept either version
4 or 5. Use DW_MACRO names instead of DW_MACRO_GNU names.
(read_macros): Use table version for fake_cu.
2017-07-26 Mark Wielaard <>
* dwarf_peel_type.c (dwarf_peel_type): Handle DW_TAG_immutable_type,
DW_TAG_packed_type and DW_TAG_shared_type.
* libdw.h (dwarf_peel_type): Extend documentation.
2017-07-26 Mark Wielaard <>
* dwarf.h: Add DW_DEFAULTED_no, DW_DEFAULTED_in_class and
2017-07-26 Mark Wielaard <>
* dwarf.h: Add DW_CC_pass_by_reference and DW_CC_pass_by_reference.
2017-07-26 Mark Wielaard <>
* dwarf_default_lower_bound.c: New file.
* (libdw_a_SOURCES): Add dwarf_default_lower_bound.c.
* dwarf_aggregate_size.c (array_size): Use dwarf_default_lower_bound.
* dwarf_error.c (errmsgs): Add DWARF_E_UNKNOWN_LANGUAGE.
* libdw.h: Add dwarf_default_lower_bound.
* (ELFUTILS_0.170): Add dwarf_default_lower_bound.
dwarf_default_lower_bound INTDECL.
2017-07-26 Mark Wielaard <>
* dwarf.h: Add DW_LANG_OpenCL, DW_LANG_Modula3,
DW_LANG_C_plus_plus_03, DW_LANG_OCaml, DW_LANG_Rust, DW_LANG_Swift,
DW_LANG_Julia, DW_LANG_Dylan, DW_LANG_RenderScript, DW_LANG_BLISS.
* dwarf_aggregate_size.c (array_size): Add lower bound for
DW_LANG_C_plus_plus_03, DW_LANG_Python, DW_LANG_OpenCL,
DW_LANG_Haskell, DW_LANG_OCaml, DW_LANG_Rust, DW_LANG_Swift,
DW_LANG_Dylan, DW_LANG_RenderScript, DW_LANG_Modula3,
2017-07-26 Mark Wielaard <>
* dwarf.h: Add DW_ATE_UCS and DW_ATE_ASCII.
2017-07-25 Mark Wielaard <>
* dwarf.h: Add DW_TAG_coarray_type, DW_TAG_generic_subrange,
DW_TAG_dynamic_type, DW_TAG_call_site, DW_TAG_call_site_parameter,
DW_TAG_skeleton_unit, DW_TAG_immutable_type. Add reserved comments
for currently unused numbers.
2017-07-25 Mark Wielaard <>
* dwarf.h (DWARF attributes enum): Remove DW_AT_subscr_data,
DW_AT_element_list and DW_AT_member. Add DWARF5 attribute constants.
(DW_AT_subscr_data, DW_AT_element_list, DW_AT_member): New defines.
2017-07-21 Mark Wielaard <>
* dwarf_line_file.c: New file.
* (libdw_a_SOURCES): Add dwarf_line_file.c.
* libdw.h (dwarf_line_file): New function declaration.
* (ELFUTILS_0.170): New. Add dwarf_line_file.
2017-02-17 Ulf Hermann <>
* Add libdw_so_LIBS to specify the archives libdw is is
made of, libdw_so_DEPS for libraries it depends on (including
libeu.a), libdw_so_LDLIBS to specify libraries libdw links against.
($(EXEEXT)): Add $(libdw_so_LDLIBS), remove enumeration of
library dependencies, use libdw_so_LIBS rather than relying on the
order of dependencies specified, add -z,relro.
2017-04-20 Ulf Hermann <>
* libdw.h: Remove attribute macro declarations and use
__noreturn_attribute__ as defined in libelf.h.
2017-04-20 Ulf Hermann <>
* dwarf_begin_elf.c: Include endian.h.
2017-03-30 Mark Wielaard <>
* dwarf_peel_type.c (dwarf_peel_type): Call dwarf_attr_integrate on
2016-10-22 Mark Wielaard <>
* dwarf.h: Correct spelling of DW_LANG_PLI. Add compatibility define.
* dwarf_aggregate_size.c (array_size): Use correct spelling of
2016-11-02 Mark Wielaard <>
* cfi.c (execute_cfi): Add fallthrough comments.
* encoded-value.h (encoded_value_size): Add explicit return instead
of relying on fallthrough.
* dwfl_report_elf.c (__libdwfl_elf_address_range): Add fallthrough
2016-10-11 Akihiko Odaki <>
* dwarf_getpubnames.c: Remove sys/param.h include, add system.h.
* libdw_alloc.c: Likewise.
2016-07-08 Mark Wielaard <>
* (ELFUTILS_0.167): New. Add dwelf_strtab_init,
dwelf_strtab_add, dwelf_strtab_add_len, dwelf_strtab_finalize,
dwelf_strent_off, dwelf_strent_str and dwelf_strtab_free.
2016-02-13 Mark Wielaard <>
* dwarf_getsrclines.c (read_srclines): Calculate ndirs first, then
assign to ndirlist.
2015-12-18 Mark Wielaard <>
* libdwP.h (struct Dwarf): Remove sectiondata_gzip_mask.
(__libdw_free_zdata): Remove.
* dwarf_begin_elf.c (inflate_section): Remove.
(check_section): Remove __libdw_free_zdata calls. Use elf_compress
and elf_compress_gnu to decompress if necessary.
(valid_p): Remove __libdw_free_zdata calls.
(scngrp_read): Use elf_compress if section is compressed. Remove
__libdw_free_zdata calls.
* dwarf_end.c (__libdw_free_zdata): Remove.
(dwarf_end): Don't call __libdw_free_zdata.
2015-10-28 Mark Wielaard <>
* (ELFUTILS_0.165): New. Add dwelf_scn_gnu_compressed_size.
2015-12-02 Mark Wielaard <>
* fde.c (intern_fde): Don't leak duplicate FDEs.
2015-12-01 Mark Wielaard <>
* fde.c (intern_fde): Don't intern an fde that doesn't cover a
valid code range.
2015-12-01 Mark Wielaard <>
* dwarf_end.c (dwarf_end): Call cu_free on fake_loc_cu if it exists.
2015-10-14 Chih-Hung Hsieh <>
* dwarf_entry_breakpoints.c (dwarf_entry_breakpoints): Move recursive
functions 'add_bkpt', 'entrypc_bkpt', and 'search_range' to file scope.
2015-10-14 Chih-Hung Hsieh <>
* libdw_visit_scopes.c (__libdw_visit_scopes): Move recursive nested
function 'walk_children' to file scope; inline 'recurse' at its call
2015-10-19 Mark Wielaard <>
* frame-cache.c (__libdw_destroy_frame_cache): Call ebl_closebackend
if necessary.
2015-10-16 Dmitry V. Levin <>
* dwarf_getsrclines.c (read_srclines): Initialize state early.
2015-10-13 Chih-Hung Hsieh <>
* dwarf_getsrclines.c (read_srclines): Move nested functions
'advance_pc' and 'add_new_line' to file scope and keep many
local state variables within one structure.
2015-10-13 Chih-Hung Hsieh <>
* dwarf_getscopevar.c (dwarf_getscopevar): Move nested
function 'file_matches' to file scope.
2015-10-16 Mark Wielaard <>
* ( Add -lz.
2015-10-14 Chih-Hung Hsieh <>
* cfi.c (execute_cfi): Move nested functions 'enough_registers'
and 'require_cfa_offset' to file scope.
2015-10-09 Josh Stone <>
* dwarf_begin.c (dwarf_begin): Replace stat64 and fstat64 with stat
and fstat.
2015-10-05 Josh Stone <>
* ( Add AM_V_CCLD and AM_V_at silencers.
2015-09-24 Jose E. Marchesi <>
* (AM_CFLAGS): Use -fPIC instead of -fpic to avoid
relocation overflows in some platforms.
2015-09-23 Mark Wielaard <>
* dwarf_error.c (__libdw_seterrno): Mark as internal_function.
* dwarf_formref.c (__libdw_formref): Likewise.
* libdw_findcu.c (__libdw_findcu): Likewise.
* libdw_visit_scopes.c (__libdw_visit_scopes): Likewise.
2015-09-22 Mark Wielaard <>
* *.c: Remove old-style function definitions.
2015-09-15 Mark Wielaard <>
* dwarf_peel_type.c (dwarf_peel_type): Don't reassign result pointer.
2015-09-09 Chih-Hung Hsieh <>
* dwarf_macro_getsrcfiles.c (dwarf_macro_getsrcfiles): Remove
redundant NULL tests on parameters declared with __nonnull_attribute__.
* dwarf_siblingof.c (dwarf_siblingof): Likewise.
* libdw_visit_scopes.c (__libdw_visit_scopes): Likewise.
2015-09-04 Chih-Hung Hsieh <>
Mark Wielaard <>
* dwarf_getlocation.c (getlocations_addr): Replace K&R function
definition with ansi-C definition and add const qualifier to
locs argument.
2015-09-04 Chih-Hung Hsieh <>
* libdw_findcu.c (__libdw_intern_next_unit): Replace K&R function
definition with ansi-C definitions.
(__libdw_findcu): Likewise.
2015-08-25 Mark Wielaard <>
* dwarf.h: Add DW_LANG_Haskell.
2015-06-18 Mark Wielaard <>
* dwarf_begin_elf.c (dwarf_begin_elf): Assert page size is big enough
to hold a Dwarf.
2015-06-18 Mark Wielaard <>
* dwarf_getpubnames.c (get_offsets): Always free mem on error.
2015-06-18 Mark Wielaard <>
* dwarf_getmacros.c (get_macinfo_table): Return NULL when
dwarf_formudata reports an error.
(get_table_for_offset): Likewise.
2015-06-08 Mark Wielaard <>
* dwarf_getsrclines.c (read_srclines): Initialize dirarray early.
2015-06-06 Mark Wielaard <>
* dwarf_getsrclines.c (read_srclines): Initialize filelist early.
2015-05-27 Mark Wielaard <>
* encoded-value.h (read_encoded_value): Check data d_size contains
at least enough data to hold a pointer for DW_EH_PE_indirect.
2015-05-22 Mark Wielaard <>
* dwarf_getsrclines.c (read_srclines): Limit stack usage of lines
with MAX_STACK_LINES, files with MAX_STACK_LINES and dirs with
MAX_STACK_DIRS. Calculate number of dirs needed first, then
create dirarray directly, without needing the next field. Free
not stack allocated lines and files at the end.
2015-05-19 Mark Wielaard <>
* dwarf_getlocation.c (__libdw_intern_expression): Create a stack
allocated array to hold locs. Allocate locs bigger than the array
with malloc and free them when done.
2015-05-11 Jonathan Lebon <>
* libdwP.h (DWARF_E_COMPRESSED_ERROR): New enumerator.
* dwarf_error.c (errmsgs): Add DWARF_E_COMPRESSED_ERROR message.
* dwarf_begin_elf.c (inflate_section): New static function, lifted
(check_section): ... here. Call inflate_section, set libdw errno to
DWARF_E_COMPRESSED_ERROR if .debug_info section couldn't be inflated.
2015-05-11 Jonathan Lebon <>
* dwarf_begin_elf.c (check_section): Add compressed flag. Always
check for .zdebug sections. Only wrap decompression in #if USE_ZLIB.
2015-05-06 Mark Wielaard <>
* dwarf_getsrclines.c (read_srclines): Use an int64_t to store and
check the line number.
2015-05-05 Mark Wielaard <>
* dwarf_getaranges.c (dwarf_getaranges): Check there is enough data
left before reading values.
2015-05-04 Anthony G. Basile <>
* (libdw_so_SOURCES): Append $(argp_LDADD) to link
2015-04-22 Mark Wielaard <>
* memory-access.h (__libdw_max_len_leb128): Take type_len as argument.
(__libdw_max_len_uleb128): New function.
(__libdw_max_len_sleb128): Likewise.
(__libdw_get_uleb128): Use __libdw_max_len_uleb128.
(__libdw_get_sleb128): Use __libdw_max_len_sleb128.
2015-04-21 Mark Wielaard <>
* dwarf_getmacros.c (read_macros): Allocate attributes dynamically
when there are more than 8.
2015-04-01 Petr Machata <>
* libdwP.h (DWARF_E_NOT_CUDIE): New enumerator.
(is_cudie): New function.
* dwarf_error.c (errmsgs): Add message for DWARF_E_NOT_CUDIE.
* dwarf_getsrcfiles.c (dwarf_getsrcfiles): Call is_cudie instead
of white-listing valid tags.
* dwarf_getsrclines.c (dwarf_getsrclines): Likewise.
2015-03-18 Petr Machata <>
* (pkginclude_HEADERS): Add known-dwarf.h.
(EXTRA_DIST): Remove known-dwarf.h.
2015-02-09 Mark Wielaard <>
* dwarf.h: Add DW_LANG_Fortran03 and DW_LANG_Fortran08.
* dwarf_aggregate_size.c (array_size): Recognize array lower bound
for new Fortran language codes is 1.
2015-02-09 Mark Wielaard <>
* dwarf.h: Add DW_TAG_atomic_type.
* libdw.h (dwarf_peel_type): Document DW_TAG_atomic_type.
* dwarf_peel_type.c (dwarf_peel_type): Handle DW_TAG_atomic_type.
2015-02-11 Josh Stone <>
* encoded-value.h (read_encoded_value): Initialize value.
2015-02-11 Petr Machata <>
* dwarf_ranges.c (dwarf_ranges): Do not bail out when neither
DW_AT_entry_pc nor DW_AT_low_pc are available. Instead remember
the fact in *BASEP and bail out later if it hasn't been updated by
2014-12-24 Mark Wielaard <>
* dwarf_getsrc_die.c (dwarf_getsrc_die): Return the last line record
smaller than or equal to addr, rather than returning immediately on
a match.
2015-01-07 Mark Wielaard <>
* cfi.h (struct Dwarf_CFI_s): Add search_table_len.
* dwarf_getcfi_elf.c (getcfi_gnu_eh_frame): Check there is enough
room in the search table for all entries. Store search_table_len.
(getcfi_scn_eh_frame): Likewise.
* encoded-value.h (encoded_value_size): Don't abort, return zero.
(__libdw_cfi_read_address_inc): Check there is enough room to read
values. Pass other byte order to read functions.
(read_encoded_value): Check encoded_value_size. Don't abort, but
set libdw errno and report failure. Check there is enough room to
read values.
* fde.c (binary_search_fde): Check encoded value size. Add hdr
data buf and size to dummy_cfi.
2015-01-04 Mark Wielaard <>
* dwarf_siblingof.c (dwarf_siblingof): Check sibling attribute
is after current DIE.
2015-01-04 Mark Wielaard <>
* cfi.c (enough_registers): Check reg < INT32_MAX / sizeof
2015-01-02 Mark Wielaard <>
* dwarf_getcfi_elf.c (parse_eh_frame_hdr): Add size check.
(getcfi_gnu_eh_frame): Remove size check. Check d_buf is not NULL.
(getcfi_scn_eh_frame): Check d_buf is not NULL.
2015-01-02 Mark Wielaard <>
* dwarf_getlocation.c (__libdw_intern_expression): Check dbg is not
NULL for DW_OP_call_ref and DW_OP_GNU_implicit_pointer. For
DW_OP_addr if dbg is NULL then read argument directly.
2015-01-14 Jason P. Leasure <>
* dwarf_formref_die.c (dwarf_formref_die): Offset is cu->type_offset
plus cu->start.
2014-12-27 Mark Wielaard <>
* dwarf_siblingof.c (dwarf_siblingof): Check sibling attribute offset
still falls inside CU data.
2015-01-11 Mark Wielaard <>
* dwarf_func_inline.c (dwarf_func_inline_instances): Call
__libdw_visit_scopes with NULL imports.
* dwarf_getfuncs.c (dwarf_getfuncs): Likewise.
* dwarf_getscopes.c (pc_record): Likewise.
(dwarf_getscopes): Likewise.
* dwarf_getscopes_die.c (dwarf_getscopes_die): Likewise.
* libdwP.h (__libdw_visit_scopes): Add imports argument.
* libdw_visit_scopes.c (__libdw_visit_scopes): Likewise. Add new
function imports_contains. Push and pop imports around walk_children
when processing DW_TAG_imported_unit.
2014-12-18 Ulrich Drepper <>
* Suppress output of textrel_check command.
2014-12-16 Mark Wielaard <>
* dwarf_getsrclines.c (read_srclines): Check diridx is valid under
2014-12-16 Mark Wielaard <>
* dwarf_getpubnames.c (dwarf_getpubnames): Make sure there is enough
space to read die offset.
2014-12-16 Mark Wielaard <>
* dwarf_getsrclines.c (read_srclines): Correct overflow check for
2014-12-15 Mark Wielaard <>
* dwarf_getpubnames.c (get_offsets): Make sure whole unit fall inside
section data. Set error to DWARF_E_NO_ENTRY if cnt is zero.
(dwarf_getpubnames): Make sure section data contains string zero
2014-12-16 Mark Wielaard <>
* memory-access.h (__libdw_get_sleb128): Unroll the first step to help
the compiler optimize for the common single-byte case.
2014-12-15 Josh Stone <>
* memory-access.h (__libdw_max_len_leb128): New.
(__libdw_get_uleb128): Use __libdw_max_len_leb128.
(__libdw_get_sleb128): Likewise.
2014-12-14 Mark Wielaard <>
* cfi.c (execute_cfi): Add program bounds checks.
* dwarf_child.c (__libdw_find_attr): Add attrp bounds checks.
* dwarf_formblock.c (dwarf_formblock): Call get_uleb128 with endp.
* dwarf_formref.c (__libdw_formref): Add datap bounds checks.
* dwarf_formsdata.c (dwarf_formsdata): Likewise.
* dwarf_formudata.c (dwarf_formudata): Likewise.
* dwarf_frame_register.c (dwarf_frame_register): Call get_uleb128
with end of data buf.
* dwarf_getabbrev.c (__libdw_getabbrev): Add abbrevp bounds checks.
* dwarf_getabbrevattr.c (dwarf_getabbrevattr): Assume get_uleb128
call gets enough data.
* dwarf_getattrs,c (dwarf_getattrs): Call get_uleb128 with endp.
* dwarf_getlocation.c (store_implicit_value): Call get_uleb128
with enough data.
(__libdw_intern_expression): Call get_uleb128/get_sleb128 with
* dwarf_getmacros.c (get_table_for_offset): Add nforms bounds check.
* dwarf_getsrclines.c (read_srclines): Bounds check linep and call
get_uleb128 with lineendp.
* dwarf_hasattr.c (dwarf_hasattr): Bounds check attrp and call
get_uleb128 with endp.
* dwarf_next_cfi.c (dwarf_next_cfi): Bounds check bytes and call
get_uleb128/get_sleb128 with limit.
* encoded-value.h (read_encoded_value): Assume get_uleb128 and
get_sleb128 get called with enough data.
* fde.c (intern_fde): Call get_uleb128 with instructions_end.
* libdwP.h (__libdw_dieabbrev): Call get_uleb128 with die->cu->endp.
* libdw_form.c (__libdw_form_val_compute_len): Call get_uleb128 with
* memory-access.h (__libdw_get_uleb128): Take an extra endp.
Don't call get_uleb128_step if out of data.
(__libdw_get_sleb128): Likewise for get_sleb128_step.
2014-12-12 Mark Wielaard <>
* libdwP.h (struct Dwarf): Add fake_loc_cu.
(cu_data): Removed.
(DIE_OFFSET_FROM_CU_OFFSET): Don't use cu_data, use cu_sec_idx.
(__libdw_form_val_compute_len): Drop dbg and endp arguments.
(__libdw_form_val_len): Likewise.
* libdw_form.c (__libdw_form_val_compute_len): Likewise.
* libdw_findcu.c (__libdw_intern_next_unit): Don't use cu_data, use
the already found data buffer directly.
* dwarf_begin_elf.c (valid_p): Setup fake_loc_cu.
* dwarf_end.c (dwarf_end): Free fake_loc_cu.
* dwarf_child.c (__libdw_find_attr): Call __libdw_form_val_len with
just cu.
* dwarf_getattrs.c (dwarf_getattrs): Likewise.
* dwarf_formblock.c (dwarf_formblock): Add bounds checking.
* dwarf_getlocation_attr.c (attr_form_cu): New function.
(dwarf_getlocation_attr): Use attr_form_cu to set result->cu.
(getlocation): Handle empty blocks immediately.
* dwarf_getlocation_implicit_pointer.c (empty_cu): New static var.
(__libdw_empty_loc_attr): Drop cu argument, use empty_cu.
(dwarf_getlocation_implicit_pointer): Call __libdw_empty_loc_attr with
one argument.
* dwarf_getmacros.c (read_macros): Also setup startp and endp for
fake_cu. Call __libdw_form_val_len with just fake_cu.
* dwarf_formref_die.c (dwarf_formref_die): Don't use cu_data, get
datap and size directly from cu startp and endp.
2014-12-11 Mark Wielaard <>
* libdw_findcu.c (__libdw_intern_next_unit): Sanity check offset.
2014-12-13 Mark Wielaard <>
* dwarf_getaranges.c (compare_aranges): Make sure Dwarf_Addr
difference doesn't wrap around before returning as int.
2014-12-11 Josh Stone <>
* dwarf_getsrclines.c (struct linelist): Add sequence.
(compare_lines): Take linelists, and break ties by sequence.
(read_srclines): Use linelists for sorting.
(read_srclines::add_new_line): Set sequence.
2014-12-10 Josh Stone <>
* libdwP.h (Dwarf_CU): Add startp and endp boundaries.
* libdw_findcu.c (__libdw_intern_next_unit): Set startp and endp.
* dwarf_child.c (dwarf_child): Use cu->endp.
* dwarf_cuoffset.c (dwarf_cuoffset): Use cu->startp.
* dwarf_dieoffset.c (dwarf_dieoffset): Use cu->startp.
* dwarf_siblingof.c (dwarf_siblingof): Use both.
2014-12-10 Josh Stone <>
* dwarf_hasattr.c (dwarf_hasattr): Just walk abbrev for presence.
2014-12-10 Josh Stone <>
* libdwP.h (__libdw_dieabbrev): New die->abbrev lookup function.
* dwarf_child.c (__libdw_find_attr, dwarf_child): Use it.
* dwarf_getattrs.c (dwarf_getattrs): Likewise.
* dwarf_haschildren.c (dwarf_haschildren): Likewise.
* dwarf_tag.c (dwarf_tag): Likewise.
2014-12-04 Mark Wielaard <>
* libdwP.h (__libdw_form_val_compute_len): Add endp argument.
(__libdw_form_val_len): Likewise and check len doesn't overflow.
* libdw_form.c (__libdw_form_val_compute_len): Likewise.
* dwarf_child.c (__libdw_find_attr): Call __libdw_form_val_len
with endp.
* dwarf_getattrs.c (dwarf_getattrs): Likewise.
* dwarf_getmacros.c (read_macros): Likewise and check for errors.
2014-12-02 Petr Machata <>
* dwarf_getmacros.c (token_from_offset, offset_from_token): New
helper functions.
(do_dwarf_getmacros_die): Merge into dwarf_getmacros.
* libdw.h (DWARF_GETMACROS_START): New macro.
2014-11-27 Mark Wielaard <>
* ( Use textrel_check.
2014-11-27 Mark Wielaard <>
* dwarf_getcfi_elf.c (getcfi_gnu_eh_frame): Initialize
search_table_entries and search_table_encoding.
2014-11-24 Mark Wielaard <>
* dwarf_getsrclines.c (read_srclines): Check line_range is not zero
before usage.
2014-11-23 Mark Wielaard <>
* dwarf_attr.c (dwarf_attr): Check __libdw_find_attr return value.
* dwarf_hasattr.c (dwarf_hasattr): Likewise.
* dwarf_siblingof.c (dwarf_siblingof): Likewise.
2014-11-23 Mark Wielaard <>
* dwarf_getabbrev.c (__libdw_getabbrev): Don't assert on bad DWARF.
Set libdw errno and return NULL.
2014-11-24 Mark Wielaard <>
* dwarf.h (DW_LANG_C_plus_plus_11): Added.
(DW_LANG_C11): Likewise.
(DW_LANG_C_plus_plus_14): Likewise.
* dwarf_aggregate_size.c (array_size): Handle DW_LANG_C11,
DW_LANG_C_plus_plus_11, DW_LANG_C_plus_plus_14 and DW_LANG_Go
lower bound.
* dwarf_getfuncs.c (dwarf_getfuncs): Set c_cu to true for
2014-11-26 Mark Wielaard <>
* dwarf.h (DW_AT_noreturn): Added.
2014-11-11 Mark Wielaard <>
* dwarf_getsrclines.c (read_srclines): Do address_size comparison
explicitly as uint8_t.
(__libdw_getsrclines): Add internal_function to declaration.
2014-09-10 Petr Machata <>
* dwarf_macro_getparamcnt.c: New file.
* dwarf_macro_param.c: New file.
* dwarf_macro_getsrcfiles.c: New file.
* (libdw_a_SOURCES): Add the new files.
* libdwP.h (struct files_lines_s): New structure.
(DWARF_E_INVALID_OPCODE): New enumerator.
(struct Dwarf): New fields macro_ops, files_lines.
(Dwarf_Macro_Op_Proto, Dwarf_Macro_Op_Table): New structures for
keeping macro opcode prototypes in.
(Dwarf_Macro_s): Redefine from scratch.
(__libdw_getsrclines, __libdw_getcompdir, libdw_macro_nforms): New
internal interfaces.
* dwarf_error.c (errmsgs): Add a message for
* dwarf_end.c (dwarf_end): Destroy struct Dwarf.macro_ops and
* libdw.h (dwarf_getmacros_off, dwarf_macro_getparamcnt)
(dwarf_macro_getsrcfiles, dwarf_macro_param): New public
* dwarf_getmacros.c (dwarf_getmacros_off): New function,
(get_offset_from, macro_op_compare, build_table)
(init_macinfo_table, get_macinfo_table, get_table_for_offset)
(cache_op_table, read_macros, gnu_macros_getmacros_off)
(macro_info_getmacros_off, do_dwarf_getmacros_die): New helper
(dwarf_getmacros): Adjust to dispatch to the new interfaces.
* dwarf_getsrclines.c (read_srclines): New function with guts
taken from dwarf_getsrclines.
(__libdw_getsrclines): Likewise.
(__libdw_getcompdir, files_lines_compare): New functions.
(dwarf_getsrclines): Make it dispatch to the new interfaces.
* dwarf_macro_param1.c (dwarf_macro_param1): Adjust to dispatch to
the new interfaces.
* dwarf_macro_param2.c (dwarf_macro_param2): Likewise.
* (ELFUTILS_0.161): New. Add dwarf_getmacros_off,
dwarf_macro_getsrcfiles, dwarf_macro_getparamcnt, dwarf_macro_param.
2014-10-06 Mark Wielaard <>
* (libdw_a_SOURCES): Add dwarf_peel_type.c.
* dwarf_aggregate_size.c (get_type): Use dwarf_peel_type.
(aggregate_size): Likewise. Add old and new version.
* dwarf_peel_type.c: New file.
* libdw.h (dwarf_peel_type): New function declaration.
* libdwP.h (dwarf_peel_type): New internal declaration.
* (ELFUTILS_0.161): New section.
2014-10-15 Petr Machata <>
* libdwP.h (struct Drop field.
* dwarf_getsrclines.c (dwarf_getsrclines): Don't set it.
2014-10-05 Mark Wielaard <>
* dwarf.h: Add DW_AT_GNU_deleted.
2014-10-02 Mark Wielaard <>
* dwarf_aggregate_size.c (aggregate_size): Return CU address_size
for sizeless DW_TAG_pointer_type, DW_TAG_reference_type or
2014-09-12 Petr Machata <>
* memory-access.h (read_ubyte_unaligned_inc): Allow only 4- and
8-byte quantities. Consequently, rename to...
(read_addr_unaligned_inc): ... this.
(read_sbyte_unaligned_inc, read_ubyte_unaligned): Drop.
(read_sbyte_unaligned): Drop.
2014-09-10 Petr Machata <>
* dwarf_getlocation.c (attr_ok): Also accept
DW_AT_GNU_call_site_value, DW_AT_GNU_call_site_data_value,
DW_AT_GNU_call_site_target, DW_AT_GNU_call_site_target_clobbered.
2014-08-15 Mark Wielaard <>
* dwarf_cu_die.c: New file.
* (libdw_a_SOURCES): Add dwarf_cu_die.c.
* libdw.h (dwarf_cu_die): New function declaration.
* (ELFUTILS_0.160): Add dwarf_cu_die.
2014-08-15 Mark Wielaard <>
* dwarf_cu_getdwarf.c: New file.
* (libdw_a_SOURCES): Add dwarf_cu_getdwarf.c.
* libdw.h (Dwarf_CU): New typedef.
(dwarf_cu_getdwarf): New function declaration.
* (ELFUTILS_0.160): New. Add dwarf_cu_getdwarf.
2014-06-18 Mark Wielaard <>
* dwarf.h: Remove DW_TAG_mutable_type.
2014-05-02 Mark Wielaard <>
* libdwP.h (__check_build_id): Removed now unused.
2014-05-01 Mark Wielaard <>
* libdwP.h (struct Dwarf): Remove free_alt.
* dwarf_end.c (dwarf_end): Don't check free_alt, don't end alt_dwarf.
* dwarf_setalt.c (dwarf_setalt): Don't check or set free_alt.
2014-04-30 Mark Wielaard <>
* (ELFUTILS_0.159): Add dwelf_elf_gnu_build_id.
2014-04-15 Florian Weimer <>
* dwarf_begin_elf.c (__check_build_id, try_debugaltlink)
(open_debugaltlink): Move to libdwfl.
(check_section): Do not locate alternate debuginfo.
2014-04-24 Florian Weimer <>
* (ELFUTILS_0.159): Export dwelf_dwarf_gnu_debugaltlink.
2014-04-22 Florian Weimer <>
* dwarf_getalt.c, dwarf_setalt.c: New files.
* (libdw_a_SOURCES): Add them.
* libdw.h (dwarf_getalt, dwarf_setalt): Add function declarations.
* libdwP.h (dwarf_getalt, dwarf_setalt): Add internal function
* (ELFUTILS_0.159): Export the two new functions.
2014-04-15 Florian Weimer <>
* libdwP.h (enum IDX_gnu_debugaltlink): New.
* dwarf_begin_elf.c (dwarf_scnnames): Increase string size and add
(check_section): Obtain .gnu_debugaltlink section from the
setiondata array.
2014-04-11 Mark Wielaard <>
* (ELFUTILS_0.159): New. Add dwelf_elf_gnu_debuglink.
* ( Depend on libdwelf_pic.a.
(libdwelf_objects): New variable.
(libdw_a_LIBADD): Add libdwelf objects.
2014-04-22 Mark Wielaard <>
* memory-access.h (get_sleb128_step): Remove undefined behavior
of left shifting a signed value. Replace it with a multiplication.
2014-04-13 Mark Wielaard <>
* Remove !MUDFLAP conditions.
2014-04-09 Mark Wielaard <>
* dwarf_begin_elf.c (check_section): Check for unsigned overflow
before calling malloc to uncompress data.
2014-03-03 Jan Kratochvil <>
Fix abort() on missing section headers.
* dwarf_begin_elf.c (check_section): Replace abort call by goto err.
New label err to return NULL.
2014-02-05 Josh Stone <>
* dwarf_decl_file.c (dwarf_decl_file): Read the idx as unsigned.
* dwarf_decl_line.c (__libdw_attr_intval): Read the line/column as
unsigned. Change the range assert to DWARF_E_INVALID_DWARF.
2013-12-30 Mark Wielaard <>
* (ELFUTILS_0.158): Add dwfl_core_file_attach and
2013-12-20 Mark Wielaard <>
* (ELFUTILS_0.158): Add dwfl_getthread_frames.
2013-12-18 Mark Wielaard <>
* (ELFUTILS_0.158): Remove dwfl_module_addrsym_elf and
dwfl_module_getsym_elf. Add dwfl_module_addrinfo and
2013-12-16 Mark Wielaard <>
* (ELFUTILS_0.158): Add dwfl_module_getsymtab_first_global.
2013-12-10 Josh Stone <>
* memory-access.h (get_uleb128_rest_return): Removed.
(get_sleb128_rest_return): Removed.
(get_uleb128_step): Make this a self-contained block.
(get_sleb128_step): Ditto, and use a bitfield to extend signs.
(get_uleb128): Make this wholly implemented by __libdw_get_uleb128.
(get_sleb128): Make this wholly implemented by __libdw_get_sleb128.
(__libdw_get_uleb128): Simplify and inline for all callers.
(__libdw_get_sleb128): Ditto.
* dwarf_getlocation.c (store_implicit_value): Void the unused uleb128.
* memory-access.c: Delete file.
* (libdw_a_SOURCES): Remove it.
(DEFS): Remove the now unused -DIS_LIBDW.
2013-12-09 Josh Stone <>
* libdw_form.c (__libdw_form_val_compute_len): Renamed function from
__libdw_form_val_len, now handling only non-constant form lengths.
* libdwP.h (__libdw_form_val_len): New inlined function.
2013-12-09 Mark Wielaard <>
* dwarf_getlocation.c (__libdw_intern_expression): Handle empty
location expressions.
* dwarf_getlocation_attr.c (dwarf_getlocation_attr): When no
location found, return empty location expression.
* dwarf_getlocation_implicit_pointer.c
(dwarf_getlocation_implicit_pointer): Likewise.
(__libdw_empty_loc_attr): New internal function.
* libdwP.h (__libdw_empty_loc_attr): Define.
2013-11-27 Mark Wielaard <>
* (ELFUTILS_0.158): Add dwfl_module_addrsym_elf and
2013-11-26 Mark Wielaard <>
* (ELFUTILS_0.156): Move dwfl_attach_state, dwfl_pid,
dwfl_thread_dwfl, dwfl_thread_tid, dwfl_frame_thread,
dwfl_thread_state_registers, dwfl_thread_state_register_pc,
dwfl_getthreads, dwfl_thread_getframes and dwfl_frame_pc to ...
(ELFUTILS_0.158): ... here.
2013-11-09 Mark Wielaard <>
* dwarf_getaranges.c (dwarf_getaranges): Read segment_size and
check that it is zero.
2013-11-07 Jan Kratochvil <>
* cfi.h (struct Dwarf_Frame_s): Make the comment more specific.
* (ELFUTILS_0.156): Add dwfl_attach_state, dwfl_pid,
dwfl_thread_dwfl, dwfl_thread_tid, dwfl_frame_thread,
dwfl_thread_state_registers, dwfl_thread_state_register_pc,
dwfl_getthreads, dwfl_thread_getframes and dwfl_frame_pc.
2013-11-01 Michael Forney <>
* (libdwfl_objects): New definition.
(libdw_a_LIBADD): Use libdwfl_objects.
2013-11-01 Michael Forney <>
2013-10-30 Jan Kratochvil <>
* (ELFUTILS_0.158): New.
2013-10-10 Mark Wielaard <>
* dwarf_getfuncs.c (struct visitor_info): Rename start_offset to
start_addr and rename last_offset to last_addr. Now both void *.
(tree_visitor): Use start_add and die_addr instead of start_offset
and die_offset.
(dwarf_getfuncs): Use last_addr instead of last_offset.
2013-10-06 Mark Wielaard <>
* cfi.c (execute_cfi): Make sure DW_CFA_expression and
DW_CFA_val_expression are not used with abi_cfi.
2013-10-03 Josh Stone <>
* dwarf_formref_die.c (dwarf_formref_die): Don't hash the sig8 here.
* libdw_findcu.c (__libdw_intern_next_unit): Since this never revisits
a unit, make sure to always hash the sig8 here, so none are missed.
2013-09-29 Mark Wielaard <>
* dwarf_getlocation.c (store_implicit_value): Cast op->number2 to
uintptr_t before casting to char *.
(__libdw_intern_expression): Cast data to uintptr_t before casting
to Dwarf_Word.
* dwarf_getlocation_attr.c (dwarf_getlocation_attr): Cast
op->number2 to uintptr_t before casting to char *.
2013-09-24 Josh Stone <>
* libdw_visit_scopes.c (classify_die): Removed.
(may_have_scopes): New function to replace classify_die. There's no
need for full classification; just find tags that may contain scopes.
(__libdw_visit_scopes): Use a direct tag comparison for imported
units, and use may_have_scopes to test if recursion is needed.
2013-09-20 Mark Wielaard <>
* dwarf_getfuncs.c (visitor_info): New struct.
(tree_visitor): New function.
(dwarf_getfuncs): Use __libdw_visit_scopes with tree_visitor.
* libdw.h (dwarf_getfuncs): Expand function documentation.
2013-09-12 Mark Wielaard <>
* fde.c (intern_fde): Free fde and set libdw errno when start
or end could not be read.
2013-08-24 Mark Wielaard <>
* dwarf_getlocation.c (store_implicit_value): Don't take data
as argument, get block data from op number2. Return false when
block data length and op number don't match up.
(__libdw_intern_expression): Store start of block for
DW_OP_implicit_value and DW_OP_GNU_entry_value instead of
relative data offset. Also store block start (including length)
for DW_OP_GNU_const_type. Don't pass data to store_implicit_value.
* dwarf_getlocation_attr.c: New file.
* dwarf_getlocation_die.c: Likewise.
* libdw.h (dwarf_getlocation_die): New function definition.
(dwarf_getlocation_attr): Likewise.
* libdwP.h: Declare internal dwarf_getlocation_die.
* (ELFUTILS_0.157): Add dwarf_getlocation_die and
* (libdw_a_SOURCES): Add dwarf_getlocation_die.c and
2013-08-23 Mark Wielaard <>
* dwarf_getlocation.c (attr_ok): Also accept DW_AT_segment.
(attr_base_address): New function.
(initial_offset_base): New function.
(getlocations_addr): New function. Taken from...
(dwarf_getlocation_addr): here. Use new initial_offset_base and
(dwarf_getlocations): New function.
* libdw.h (dwarf_getlocations): New function definition.
* (ELFUTILS_0.157): New.
2013-07-02 Mark Wielaard <>
* dwarf_getsrclines.c (dwarf_getsrclines): Add new stack allocation
limit MAX_STACK_ALLOC. After MAX_STACK_ALLOC lines use malloc in
NEW_LINE macro. Free malloced line records if any at the end.
2013-07-02 Mark Wielaard <>
* dwarf_getcfi_elf.c (getcfi_shdr): Check sh_type == SHT_PROGBITS.
2013-06-26 Mark Wielaard <>
* libdw_visit_scopes.c (__libdw_visit_scopes): Don't reject root
DIEs without children. Return an error whenever dwarf_child or
dwarf_siblingof return an error. Don't call recurse and increase
the depth for an imported unit. Walk the children of an imported
unit as if they are logical children of the parent root DIE.
2013-05-03 Mark Wielaard <>
* dwarf_getsrclines.c (dwarf_getsrclines): Only set end_sequence
when nlinelist > 0.
2013-04-28 Jan Kratochvil <>
* (ELFUTILS_0.156): New.
2013-04-24 Mark Wielaard <>
* Use AM_CPPFLAGS instead of INCLUDES.
2013-04-10 Mark Wielaard <>
* dwarf_formref_die.c (dwarf_formref_die): Reference size is only
equal to address size when we have a DW_FORM_ref_addr for DWARF
version 2.
2013-03-25 Mark Wielaard <>
* dwarf_getsrclines.c (dwarf_getsrclines): Mark highest address as
2013-03-12 Mark Wielaard <>
* dwarf_getsrcfiles.c (dwarf_getsrcfiles): Allow DW_TAG_partial_unit.
* dwarf_getsrclines.c (dwarf_getsrclines): Likewise.
2013-02-15 Mark Wielaard <>
* dwarf_formstring.c (dwarf_formstring): Check dbg_ret->sectiondata,
not dbg->sectiondata.
2013-01-07 Roland McGrath <>
* memory-access.h
[ALLOW_UNALIGNED] (read_8ubyte_unaligned_noncvt): New macro.
[!ALLOW_UNALIGNED] (read_8ubyte_unaligned_noncvt): New inline function.
2012-12-18 Mark Wielaard <>
* dwarf_begin_elf.c (valid_p): Call Dwarf_Sig8_Hash_free if invalid.
(check_section): Likewise on error.
(scngrp_read): Likewise.
(dwarf_begin_elf): Likewise.
2012-10-09 Petr Machata <>
* dwarf_getlocation.c (__libdw_intern_expression): Handle
DW_OP_GNU_parameter_ref, DW_OP_GNU_convert, DW_OP_GNU_reinterpret,
DW_OP_GNU_regval_type, DW_OP_GNU_entry_value,
DW_OP_GNU_deref_type, DW_OP_GNU_const_type.
2012-10-08 Jan Kratochvil <>
* cfi.c: New include system.h.
(execute_cfi) (enough_registers): Clear new memory after realloc.
2012-10-08 Jan Kratochvil <>
* fde.c (__libdw_find_fde): Change <fde != NULL> to likely. Return
DWARF_E_NO_MATCH if .eh_frame_hdr points to FDE which is too short for
searched PC.
2012-10-08 Jan Kratochvil <>
* dwarf_getlocation.c (__libdw_intern_expression) <cfap>: Make new
loclist element DW_OP_call_frame_cfa before decoding the opcodes.
Remove the later DW_OP_call_frame_cfa push to RESULT.
2012-10-08 Jan Kratochvil <>
Code cleanup.
* fde.c (binary_search_fde): Remove always true <address >= start>
conditional. Move L initialization upwards.
2012-08-24 Mark Wielaard <>
* dwarf_begin_elf.c (check_section): Only probe for dwz multi files
when ENABLE_DWZ is defined.
* libdwP.h (__check_build_id): Only declare when ENABLE_DWZ is
2012-08-16 Mark Wielaard <>
* (EXTRA_DIST): Add known-dwarf.h.
* dwarf.h (DW_LANG_Go): Update comment.
(DW_LANG_Mips_Assembler): Likewise.
2012-06-27 Mark Wielaard <>
* dwarf.h: Add DW_FORM_GNU_ref_alt and DW_FORM_GNU_strp_alt.
* dwarf_begin.c (dwarf_begin): Add INTDEF.
* dwarf_begin_elf.c (__check_build_id): New internal_function.
(try_debugaltlink): New function.
(open_debugaltlink): Likewise.
(check_section): Try open_debugaltlink for .gnu_debugaltlink.
* dwarf_end.c (dwarf_end): Free the alternative Dwarf descriptor if
* dwarf_error.c (errmsgs): Add DWARF_E_NO_ALT_DEBUGLINK.
* dwarf_formref.c (__libdw_formref): Using DW_FORM_GNU_ref_alt
is an error here.
* dwarf_formref_die.c (dwarf_formref_die): Handle DW_FORM_GNU_ref_alt.
* dwarf_formstring.c (dwarf_formstring): Handle DW_FORM_GNU_strp_alt.
* dwarf_formudata.c (__libdw_formptr): Adjust __libdw_read_offset
* dwarf_getpubnames.c (get_offsets): Adjust __libdw_read_offset call.
(struct Dwarf): Add alt_dwarf and free_alt fields.
(__libdw_read_offset): Add dbg_ret argument, use to check with
(__check_build_id): New function declaration.
(dwarf_begin): Define as INTDECL.
* libdw_form.c (__libdw_form_val_len): Handle DW_FORM_GNU_ref_alt
and DW_FORM_GNU_strp_alt.
2012-07-19 Mark Wielaard <>
* dwarf.h: Add DW_OP_GNU_parameter_ref.
2012-07-24 Mark Wielaard <>
* dwarf.h: Correct spelling of DW_LANG_ObjC.
* dwarf_aggregate_size.c (array_size): Use correct spelling of
2012-07-24 Mark Wielaard <>
* dwarf.h: Add DW_ATE_UTF.
2012-06-27 Mark Wielaard <>
* dwarf.h: Add DW_MACRO_GNU .debug_macro type encodings.
2012-06-26 Mark Wielaard <>
* libdwP.h: Add IDX_debug_macro.
* dwarf.h: Add DW_AT_GNU_macros.
* dwarf_begin_elf.c (dwarf_scnnames): Add .debug_macro.
* dwarf_formudata.c (dwarf_formudata): Recognize DW_AT_GNU_macros.
2012-04-27 Mark Wielaard <>
* libdw/dwarf_highpc.c (dwarf_highpc): Handle DW_AT_high_pc being
a constant offset from DW_AT_low_pc.
2012-03-19 Tom Tromey <>
* libdw_findcu.c (findcu_cb): Move earlier.
(__libdw_intern_next_unit): Add new CU to search tree here...
(__libdw_findcu): ... not here.
2012-01-31 Mark Wielaard <>
* dwarf_formudata.c (dwarf_formudata): Handle DW_FORM_sec_offset.
2011-11-31 Mark Wielaard <>
* (known-dwarf.h): Run gawk on config/known-dwarf.awk.
2011-07-14 Mark Wielaard <>
* libdw.h (dwarf_offdie): Fix documentation to mention .debug_info.
2011-05-16 Jakub Jelinek <>
* dwarf.h (DW_OP_GNU_const_type, DW_OP_GNU_regval_type,
DW_OP_GNU_deref_type, DW_OP_GNU_convert, DW_OP_GNU_reinterpret):
2011-04-26 Mark Wielaard <>
* dwarf_child (dwarf_child): Sanity check end of section against
cu_data () of die->cu.
2011-03-22 Mark Wielaard <>
* dwarf.h: Add DW_TAG_GNU_call_site,
and DW_OP_GNU_entry_value.
2011-03-10 Petr Machata <>
* libdw/dwarf_tag.c (__libdw_findabbrev): Reject requests for
abbreviation with code 0.
2011-03-09 Petr Machata <>
* libdw/dwarf_child.c (dwarf_child): Check for section overrun.
2011-02-23 Roland McGrath <>
* libdwP.h (struct Dwarf) [USE_ZLIB]: New member sectiondata_gzip_mask.
Declare __libdw_free_zdata.
* dwarf_end.c [USE_ZLIB] (__libdw_free_zdata): New function.
(dwarf_end): Call it.
* dwarf_begin_elf.c (valid_p): Likewise.
(check_section, scngrp_read): Likewise.
(check_section) [USE_ZLIB]: Grok .z* flavors of sections.
2010-10-13 Roland McGrath <>
* dwarf.h: Add DW_LANG_Go.
2010-10-05 Roland McGrath <>
* dwarf_getaranges.c: Use malloc rather than alloca,
since the total number of elements can be quite huge.
2010-07-26 Roland McGrath <>
* dwarf_getlocation_implicit_pointer.c: New file.
* (libdw_a_SOURCES): Add it.
* (ELFUTILS_0.149): New set.
Add dwarf_getlocation_implicit_pointer.
* libdw.h: Declare it.
* dwarf_offdie.c (do_offdie): Renamed to __libdw_offdie, made global.
(dwarf_offdie, dwarf_offdie_types): Update callers.
* libdwP.h: Declare it.
* dwarf.h: Add DW_OP_GNU_implicit_pointer.
* dwarf_getlocation.c (__libdw_intern_expression): Handle it.
2010-08-24 Roland McGrath <>
* (ELFUTILS_0.149): New set. Add dwfl_dwarf_line.
2010-07-27 Roland McGrath <>
* dwarf_formref_die.c: Fix sig8 hash insertion.
2010-06-23 Roland McGrath <>
* cfi.c (dwarf_cfi_validate_fde): Function removed.
* libdw.h: Remove it.
* Likewise.
2010-06-22 Roland McGrath <>
* dwarf_getlocation.c (check_constant_offset): data[48] are constant.
* dwarf_getsrclines.c: Fix signed comparison warning in extended
opcode parsing.
2010-06-21 Roland McGrath <>
* dwarf.h: Add DW_TAG_GNU_* constants.
* memory-access.h (get_sleb128_rest_return): Fix sign extension for
10-byte case.
2010-06-20 Roland McGrath <>
* libdw_findcu.c (__libdw_findcu): Take new flag argument,
to search TUs instead of CUs.
* libdwP.h: Update decl.
(struct Dwarf): New member tu_tree.
* dwarf_end.c (dwarf_end): Clean up tu_tree.
* dwarf_offdie.c (do_offdie): New function, broken out of ...
(dwarf_offdie): ... here.
(dwarf_offdie_types): New function.
* libdw.h: Declare it.
* (ELFUTILS_0.148): Add it.
* libdwP.h (CUDIE): Use cu_data.
* dwarf_formblock.c: Likewise.
* dwarf_formref_die.c: Likewise.
* dwarf_diecu.c: Use CUDIE macro.
* dwarf_formaddr.c: Use cu_sec_idx.
2010-06-16 Roland McGrath <>
* dwarf_formref_die.c: Use dwarf_offdie only for DW_FORM_ref_addr, so
we don't repeat a CU lookup we've already done. Handle
DW_FORM_ref_sig8 using sig8_hash table and __libdw_intern_next_unit.
* libdw_findcu.c (__libdw_intern_next_unit): New function,
broken out of ...
(__libdw_findcu): ... here. Call it.
* libdwP.h: Declare it.
(struct Dwarf): New member next_tu_offset.
* dwarf_sig8_hash.c: New file.
* dwarf_sig8_hash.h: New file.
* (libdw_a_SOURCES, noinst_HEADERS): Add them.
* dwarf_abbrev_hash.c: Include dwarf_sig8_hash.h before
defining NO_UNDEF.
* libdwP.h (struct Dwarf): New member sig8_hash.
* dwarf_begin_elf.c: Call Dwarf_Sig8_Hash_init on it.
* dwarf_end.c: Call Dwarf_Sig8_Hash_free on it.
* dwarf_nextcu.c (dwarf_next_unit): New function, broken out of ...
(dwarf_nextcu): ... here. Call it.
* libdw.h: Declare it.
* libdwP.h: Add INTDECL.
* libdw_findcu.c (__libdw_findcu): Use it instead of dwarf_nextcu.
* (ELFUTILS_0.148): New set, add dwarf_next_unit.
* libdwP.h (cu_sec_idx, cu_data): New functions.
Use .debug_types when CU is a TU.
* dwarf_cuoffset.c: Use that instead of assuming IDX_debug_info.
* dwarf_siblingof.c: Likewise.
* dwarf_formstring.c: Likewise.
* dwarf_formudata.c (__libdw_formptr, dwarf_formudata): Likewise.
* dwarf_getlocation.c (dwarf_getlocation): Likewise.
(dwarf_getlocation_addr): Likewise.
* libdwP.h (struct Dwarf_CU): Add new members type_offset, type_sig8.
(DIE_OFFSET_FROM_CU_OFFSET): Take flag argument; if true, compute
.debug_types header size instead of .debug_info header size.
(CUDIE): Use it.
* dwarf_diecu.c: Update caller.
* dwarf_getaranges.c: Likewise.
* dwarf_nextcu.c: Likewise.
* libdw_findcu.c (__libdw_findcu): Initialize new members.
* fde.c (fde_by_offset): Renamed to ...
(__libdw_fde_by_offset): ... this, made global and internal_function.
Don't take ADDRESS argument.
(__libdw_find_fde): Update caller. Do address sanity check here.
* cfi.h: Declare __libdw_fde_by_offset.
* cfi.c (dwarf_cfi_validate_fde): New function.
* libdw.h: Declare it.
* (ELFUTILS_0.148): Add it.
* cie.c (intern_new_cie): Canonicalize DW_EH_PE_absptr FDE encoding to
either DW_EH_PE_udata8 or DW_EH_PE_udata4.
* encoded-value.h (read_encoded_value): Handle DW_EH_PE_indirect.
Don't assume DW_EH_PE_aligned refers to native address size.
* cfi.c (execute_cfi): Barf on CIE initial instructions changing the
2010-06-17 Roland McGrath <>
* libdwP.h (struct Dwarf_Line_s): Add members isa, discriminator, and
* dwarf_getsrclines.c (dwarf_getsrclines): Move NEW_FILE macro guts
into an inner inline function. Set new fields. Check all fields for
overflow when setting.
* dwarf_lineisa.c: New file.
* dwarf_linediscriminator.c: New file.
* dwarf_lineop_index.c: New file.
* (libdw_a_SOURCES): Add them.
* (ELFUTILS_0.148): Add them.
* libdw.h: Declare them.
2010-06-16 Roland McGrath <>
* dwarf_next_cfi.c: Fix version 4 return_address_register decoding.
* fde.c (fde_by_offset): Renamed to ...
(__libdw_fde_by_offset): ... this, made global and internal_function.
Don't take ADDRESS argument.
(__libdw_find_fde): Update caller. Do address sanity check here.
* cfi.h: Declare __libdw_fde_by_offset.
* cfi.c (dwarf_cfi_validate_fde): New function.
* libdw.h: Declare it.
* (ELFUTILS_0.148): Add it.
* cie.c (intern_new_cie): Canonicalize DW_EH_PE_absptr FDE encoding to
either DW_EH_PE_udata8 or DW_EH_PE_udata4.
* encoded-value.h (read_encoded_value): Handle DW_EH_PE_indirect.
Don't assume DW_EH_PE_aligned refers to native address size.
* cfi.c (execute_cfi): Barf on CIE initial instructions changing the
2010-06-15 Roland McGrath <>
* dwarf_formref.c (__libdw_formref): Diagnose DW_FORM_ref_sig8 like
* dwarf_formref_die.c (dwarf_formref_die): Diagnose it the same way
here, since we don't support it yet.
* dwarf_next_cfi.c: Handle version 4 format.
* dwarf_getsrclines.c: Handle version 4 format.
2010-06-01 Roland McGrath <>
* libdwP.h: Remove unused IDX_debug_*names, add IDX_debug_types.
* dwarf_begin_elf.c (dwarf_scnnames): Likewise.
* libdwP.h (CIE_VERSION): Remove unused macro.
* dwarf_getsrclines.c: Fix version field test.
* libdwP.h (DWARF_VERSION): Remove useless macro.
* dwarf_formudata.c (__libdw_formptr): Fix DW_FORM_sec_offset handling.
* dwarf_formblock.c (dwarf_formblock): Handle DW_FORM_exprloc.
* libdw_findcu.c (__libdw_findcu): Accept version 4.
2010-05-31 Mark Wielaard <>
* cfi.h (dwarf_cfi_cie_p): Move definition from here, to ..
* libdw.h (dwarf_cfi_cie_p): ... here.
2010-05-31 Mark Wielaard <>
* dwarf.h: Fix DW_LANG_Python constant.
2010-05-28 Eduardo Santiago <>
* dwarf_getlocation.c (dwarf_getlocation): Do attr_ok check first
2010-05-27 Roland McGrath <>
* dwarf.h: Add DW_AT_enum_class, DW_AT_linkage_name,
DW_TAG_template_alias, DW_LANG_Python, DW_LNE_set_discriminator.
2010-05-08 Roland McGrath <>
* dwarf_getlocation.c (__libdw_intern_expression): Take new argument
REF_SIZE. Use that to handle DW_OP_call_ref correctly.
(getlocation): Update caller.
* dwarf_frame_cfa.c (dwarf_frame_cfa): Likewise.
* dwarf_frame_register.c (dwarf_frame_register): Likewise.
* libdwP.h: Update decl.
2010-04-26 Roland McGrath <>
* cfi.h (struct Dwarf_Frame_s): Add cfa_invalid alternative in cfa_rule.
* cfi.c (execute_cfi): Set that instead of doing cfi_assert for
DW_CFA_def_cfa_{offset*,register} when a non-offset rule is in force.
* dwarf_frame_cfa.c (dwarf_frame_cfa): Handle cfa_invalid.
* dwarf_getlocation.c (__libdw_intern_expression): Take new arg CFAP.
Prepend DW_OP_call_frame_cfa if true.
(getlocation): Update caller.
* dwarf_frame_cfa.c (dwarf_frame_cfa): Likewise.
* dwarf_frame_register.c (dwarf_frame_register): Likewise.
* libdwP.h: Update decl.
2010-04-22 Roland McGrath <>
* cfi.c (execute_cfi): Never return without cleanup.
Free FS on failure.
(cie_cache_initial_state): Adjust caller to expect that free.
(__libdw_frame_at_address): Likewise.
2010-03-10 Roland McGrath <>
* (ELFUTILS_0.146): New set. Add dwfl_core_file_report.
2010-02-15 Roland McGrath <>
* Use config/ for common stuff.
2010-02-02 Mark Wielaard <>
* fde.c (intern_fde): Fix length check for sized_augmentation_data.
2010-01-07 Roland McGrath <>
* dwarf_getcfi_elf.c (getcfi_phdr): Use elf_getphdrnum.
2010-01-05 Roland McGrath <>
* dwarf_aggregate_size.c: New file.
* (libdw_a_SOURCES): Add it.
* libdw.h: Declare it.
* libdwP.h: Add INTDECL.
* (ELFUTILS_0.144): New set. Add dwarf_aggregate_size.
* dwarf_srclang.c: Add INTDEF.
* libdwP.h: Add INTDECL.
* dwarf.h: Add some more DW_AT_GNU_* types from gcc.
* dwarf.h: Add DW_AT_GNU_vector, DW_AT_GNU_template_name.
2009-11-21 Roland McGrath <>
* dwarf_getlocation.c (check_constant_offset): Return 1 for all
non-constant forms.
2009-10-15 Roland McGrath <>
* libdw_form.c (__libdw_form_val_len): Grok DW_FORM_sec_offset,
DW_FORM_exprloc, DW_FORM_flag_present, and DW_FORM_ref_sig8.
2009-09-17 Roland McGrath <>
* dwarf_getlocation.c (dwarf_getlocation_implicit_value): Make OP
argument a pointer to const.
* libdw.h: Update decl.
2009-09-10 Roland McGrath <>
* dwarf_getlocation.c (store_implicit_value): New function.
(__libdw_intern_expression): Use it, handle DW_OP_implicit_value.
(dwarf_getlocation_implicit_value): New function.
* libdw.h: Declare it.
* (ELFUTILS_0.143): Add it.
2009-09-09 Mark Wielaard <>
* dwarf_getcfi.c (dwarf_getcfi): Clear cfi->ebl.
2009-08-21 Josh Stone <>
* dwarf_hasattr_integrate.c: Integrate DW_AT_specification too.
2009-08-10 Roland McGrath <>
* dwarf_getscopevar.c: Use dwarf_diename.
2009-08-09 Roland McGrath <>
* (ELFUTILS_0.143): New version set,
inherits from ELFUTILS_0.142.
* dwarf_arrayorder.c: Use OLD_VERSION and NEW_VERSION to define an
alias in the ELFUTILS_0.122 version set and the default in the new set.
* dwarf_srclang.c: Likewise.
* dwarf_decl_file.c: Likewise.
* dwarf_decl_line.c: Likewise.
* dwarf_decl_column.c: Likewise.
* dwarf_bytesize.c: Likewise.
* dwarf_bitsize.c: Likewise.
* dwarf_bitoffset.c: Likewise.
2009-08-07 Roland McGrath <>
* dwarf_arrayorder.c: Use dwarf_attr_integrate.
* dwarf_srclang.c: Likewise.
* dwarf_decl_file.c: Likewise.
* dwarf_decl_line.c (__libdw_attr_intval): Likewise.
* dwarf_bytesize.c: Likewise.
* dwarf_bitsize.c: Likewise.
* dwarf_bitoffset.c: Likewise.
2009-07-22 Roland McGrath <>
* dwarf_frame_cfa.c: Change calling convention.
* libdw.h: Update decl.
* dwarf_frame_register.c: Change calling/return-value convention for
value-only results and undefined/same_value.
* libdw.h: Update decl.
* dwarf_getlocation.c (__libdw_intern_expression): Take new bool
argument, append DW_OP_stack_value if set. Don't take NOPS argument,
return that value instead.
(getlocation): Update caller.
* dwarf_frame_cfa.c: Likewise.
* libdwP.h: Update decl.
2009-07-21 Roland McGrath <>
* dwarf_getsrc_file.c: Ignore a CU that just has no DW_AT_stmt_list.
Fix loop iteration after skipping a bogus or useless CU.
* dwarf_entry_breakpoints.c: Handle 0 dwarf_errno () as harmless
absence, not DWARF_E_NO_DEBUG_LINE.
2009-07-20 Roland McGrath <>
* dwarf_getlocation.c (__libdw_intern_expression):
Handle DW_OP_stack_value.
2009-07-16 Roland McGrath <>
* dwarf_formudata.c (__libdw_formptr): Handle DW_FORM_sec_offset,
reject others when CU's version > 3.
* dwarf_formflag.c: Handle DW_FORM_flag_present.
* dwarf.h: Add DW_OP_{implicit,stack}_value from DWARF 4 draft.
Also DW_TAG_type_unit and DW_TAG_rvalue_reference_type.
Also DW_AT_signature, DW_AT_main_subprogram, DW_AT_data_bit_offset,
and DW_AT_const_expr.
Also DW_FORM_sec_offset, DW_FORM_exprloc, DW_FORM_flag_present,
and DW_FORM_ref_sig8.
2009-07-15 Roland McGrath <>
* dwarf_getlocation.c: Grok DW_OP_form_tls_address,
DW_OP_GNU_push_tls_address, and DW_OP_bit_piece.
2009-07-13 Roland McGrath <>
* dwarf_getlocation.c: Grok DW_OP_call_frame_cfa.
2009-07-08 Roland McGrath <>
* (ELFUTILS_0.142): Add dwfl_module_dwarf_cfi,
* libdwP.h (struct Dwarf): Add member `cfi'.
* dwarf_end.c (dwarf_end): Call __libdw_destroy_frame_cache on it.
* dwarf_getcfi.c: New file.
* dwarf_getcfi_elf.c: New file.
* dwarf_cfi_end.c: New file.
* dwarf_cfi_addrframe.c: New file.
* dwarf_frame_cfa.c: New file.
* dwarf_frame_register.c: New file.
* dwarf_frame_return_address_register.c: New file.
* (libdw_a_SOURCES): Add them.
* unwind.h: Declare those functions.
* (ELFUTILS_0.142): Export them.
* dwarf_getlocation.c (__libdw_intern_expression): New function,
broken out of ...
(getlocation): ... here, call it.
* libdwP.h: Declare it.
* cie.c: New file.
* fde.c: New file.
* frame-cache.c: New file.
* cfi.c: New file.
* cfi.h: New file.
* encoded-value.h: New file.
* (libdw_a_SOURCES, noinst_HEADERS): Add them.
* libdwP.h: Add DWARF_E_INVALID_CFI to errors enum.
* dwarf_error.c (errmsgs): Add element for it.
* dwarf_next_cfi.c: New file.
* (libdw_a_SOURCES): Add it.
* libdw.h (Dwarf_CIE, Dwarf_FDE, Dwarf_CIE_Entry): New types.
Declare dwarf_next_cfi.
* (ELFUTILS_0.142): New set, inherits from ELFUTILS_0.136.
Add dwarf_next_cfi.
* memory-access.h [! ALLOW_UNALIGNED]
(read_2ubyte_unaligned): Renamed to ...
(read_2ubyte_unaligned_1): ... this. Take bool rather than Dwarf *.
(read_2ubyte_unaligned): Define as macro passing dbg->other_byte_order.
(read_2sbyte_unaligned): Likewise.
(read_4ubyte_unaligned): Likewise.
(read_4sbyte_unaligned): Likewise.
(read_8ubyte_unaligned): Likewise.
(read_8sbyte_unaligned): Likewise.
* libdwP.h (IDX_eh_frame): Remove it.
* dwarf_begin_elf.c (dwarf_scnnames): Remove its element.
2009-07-08 Roland McGrath <>
* libdwP.h (struct Dwarf_Line_s): Reorder members to pack better.
* dwarf_getlocation.c (check_constant_offset): New function.
(dwarf_getlocation, dwarf_getlocation_addr): Call it to
handle DW_AT_data_member_location of data[48] as constant offset.
2009-06-18 Roland McGrath <>
* libdwP.h (__libdw_read_address_inc): Constify.
(__libdw_read_offset_inc): Likewise.
* dwarf_getaranges.c: Likewise.
* dwarf_getlocation.c: Likewise.
* dwarf_getsrclines.c: Likewise.
* dwarf_nextcu.c: Likewise.
2009-05-05 Petr Machata <>
* libdwP.h (__libdw_formptr): Declare new function.
* dwarf_formudata.c: Implement it here.
* dwarf_getlocation.c (dwarf_getlocation_addr):
Call it instead of hand-rolled offset handling code.
* dwarf_getsrclines.c (dwarf_getsrclines): Likewise.
* dwarf_ranges.c (dwarf_ranges): Likewise.
2009-05-04 Petr Machata <>
* libdwP.h (__libdw_read_begin_end_pair_inc): Declare new function.
* dwarf_ranges.c: Implement it here.
(dwarf_ranges): Call it.
* dwarf_getlocation.c (dwarf_getlocation_addr): Call it also here.
2009-04-23 Petr Machata <>
* dwarf_formaddr.c (dwarf_formaddr): Call __libdw_read_* instead
of read_*ubyte_unaligned.
* dwarf_formref_die.c (dwarf_formref_die): Likewise.
* dwarf_formstring.c (dwarf_formstring): Likewise.
* dwarf_formudate.c (dwarf_formudata): Likewise.
* dwarf_getaranges.c (dwarf_getaranges): Likewise.
* dwarf_getlocation.c (dwarf_getlocation_addr): Likewise.
* dwarf_getpubnames.c (get_offsets): Likewise.
* dwarf_nextcu.c (dwarf_nextcu): Likewise.
2009-04-23 Petr Machata <>
* libdwP.h (__libdw_read_addr_inc, __libdw_read_off_inc,
__libdw_read_addr, __libdw_read_off): Add four new internal
2009-05-07 Roland McGrath <>
* dwarf_getmacros.c (dwarf_getmacros): Use absolute section offset in
return value and OFFSET argument, not CU-relative. Only fetch the
attribute data when called with OFFSET of 0.
2009-05-07 Petr Machata <>
* dwarf_getmacros.c (dwarf_getmacros): Take into account offset in
DW_AT_macro_info attribute of CU DIE.
2009-04-15 Roland McGrath <>
* dwarf.h (DW_CIE_ID): Removed.
(DW_CIE_ID_32, DW_CIE_ID_64): New constants replace it.
2009-04-01 Roland McGrath <>
* dwarf.h: Add DW_CFA_GNU_negative_offset_extended.
2009-01-28 Roland McGrath <>
* libdwP.h (struct Dwarf_Line_s): Move out of struct Dwarf_Lines_s
defn so C++ doesn't scope the name to not match the Dwarf_Line typedef.
* libdwP.h (struct Dwarf_Files_s): Replace dbg field with cu field.
2009-01-26 Roland McGrath <>
* dwarf_ranges.c: Return 0 when no ranges or *_pc attrs at all.
2009-01-25 Roland McGrath <>
* dwarf_getattrs.c: Correctly skip attribute values when restarting.
2009-01-23 Roland McGrath <>
* ($(srcdir)/known-dwarf.h): Target renamed back.
Put these rules under if MAINTAINER_MODE.
2009-01-22 Roland McGrath <>
* dwarf.h: Add DW_OP_GNU_encoded_addr.
2009-01-21 Roland McGrath <>
* (CLEANFILES): Renamed to ...
(CLEANFILES): New variable, add known-dwarf.h.
2009-01-17 Roland McGrath <>
* (known-dwarf.h): Target renamed, not in $(srcdir).
Make it unconditional.
* dwarf.h: Add description comments for DW_LANG_* values.
($(srcdir)/known-dwarf.h): New target.
* dwarf.h: Add DW_OP_GNU_push_tls_address, DW_OP_GNU_uninit.
2009-01-10 Ulrich Drepper <>
* dwarf_error.c: Always use __thread. Remove all !USE_TLS code.
2009-01-08 Roland McGrath <>
* ( Don't depend on $(zip_LIBS), just link it in.
2008-01-06 Roland McGrath <>
* libdwP.h (struct Dwarf_Abbrev): Change type of 'has_children' to bool.
Reorder members.
* dwarf_haschildren.c: Return -1 for error case, not 0.
* ( Link in $(zip_LIBS).
2009-01-06 Ulrich Drepper <>
* dwarf.h: Add definition for unwind and call frame information.
* memory-access.h: Define read_ubyte_unaligned, read_sbyte_unaligned,
read_ubyte_unaligned_inc, and read_sbyte_unaligned_inc.
2008-08-15 Roland McGrath <>
* (ELFUTILS_0.136): New version set, inherits from
ELFUTILS_0.130. Add dwfl_addrsegment, dwfl_report_segment.
2008-01-21 Ulrich Drepper <>
* dwarf_child.c: Minor optimizations.
* dwarf_getattrs.c: Likewise.
* dwarf_getpubnames.c: Likewise.
* dwarf_siblingof.c: Likewise.
* dwarf_tag.c: Likewise.
2008-01-18 Ulrich Drepper <>
* dwarf_getsrclines.c (dwarf_getsrclines): Don't require exact match
of DWARF_VERSION comparison, just fail if the file's version is newer.
2008-01-17 Nick Clifton <>
* dwarf.h (DWARF3_LENGTH_MIN_ESCAPE_CODE): New define.
(DWARF3_LENGTH_64_BIT): New define.
* dwarf_getaranges (dwarf_getaranges): Use the new definitions.
* dwarf_getpubnames: Include dwarf.h.
(get_offsets): Use the new definitions.
* dwarf_getsrclines.c (dwarf_getsrclines): Use the new defintions.
* dwarf_nextcu.c: Include dwarf.h. Correct comment.
(dwarf_nextcu): Use the new definitions.
* libdwP.h (DIE_OFFSET_FROM_CU_OFFSET): New macro.
* dwarf_diecu.c (dwarf_diecu): Use the new macro.
* dwarf_getaranges (dwarf_getaranges): Use the new macro.
* dwarf_nextcu.c (dwarf_nextcu): Use the new macro.
* dwarf_getpubnames (get_offsets): Replace assertion with test and
error return.
* dwarf_entry_breakpoints.c (dwarf_entry_breakpoints): Use CUDIE.
* dwarf_siblingof (dwarf_siblingof): Detect a NULL return pointer.
Set the address in the return structure to the address of the next
non-sibling die, if there is no sibling and the return pointer is
not the same as the die pointer.
* libdw.h: Expand the description of the dwarf_siblingof prototype.
* dwarf_child.c: Fix typo in comment.
* libdwP.h (DWARF_VERSION): Change to 3.
* dwarf_formref.c (__libdw_formref.c): Handle attributes which do
not have a initialised valp pointer.
* dwarf_getattrs.c (dwarf_getattrs): Return 1 rather than 0 when
the end of the attributes is reached. When the callback fails,
return the address of the failing attribute, not the address of
its successor.
* libdw.h: Expand the description of the dwarf_getattrs prototype.
* dwarf_child.c (__libdw_find_attr): Use the new definition.
(dwarf_child): Likewise.
* dwarf_tag.c (__libdw_findabbrev): Likewise.
(dwarf_tag): Likewise.
2008-01-08 Roland McGrath <>
* (euinclude): Variable removed.
(pkginclude_HEADERS): Set this instead of euinclude_HEADERS.
( Pass -Wl,--enable-new-dtags,-rpath,$(pkglibdir).
2007-10-17 Roland McGrath <>
* libdw.h (__deprecated_attribute__): New macro.
(dwarf_formref): Mark it deprecated.
* dwarf_formref.c (__libdw_formref): New function, broken out of ...
(dwarf_formref): ... here. Call it. Remove INTDEF.
* libdwP.h: Remove INTDECL.
Declare __libdw_formref.
* dwarf_siblingof.c (dwarf_siblingof): Call __libdw_formref instead.
* dwarf_formref_die.c: Likewise. Handle DW_FORM_ref_addr here.
* libdw_form.c (__libdw_form_val_len): Fix DW_FORM_ref_addr result,
needs to check CU->version.
* libdwP.h (struct Dwarf_CU): New member `version'.
* libdw_findcu.c (__libdw_findcu): Initialize it.
* dwarf_child.c: Return 1 for null entry as first child.
2007-10-05 Roland McGrath <>
* dwarf_begin_elf.c (check_section): Punt on SHT_NOBITS sections.
* libdw.h (__extern_inline): Rename to __libdw_extern_inline.
[__OPTIMIZE__] (dwarf_whatattr, dwarf_whatform): Update uses.
2007-10-03 Roland McGrath <>
* (ELFUTILS_0.130: Add dwfl_build_id_find_elf
and dwfl_build_id_find_debuginfo.
* (ELFUTILS_0.130): New version set, inherits from
ELFUTILS_0.127. Add dwfl_module_build_id, dwfl_module_report_build_id.
2007-10-02 Roland McGrath <>
* libdw_visit_scopes.c (classify_die): Return walk for class_type and
2007-08-07 Roland McGrath <>
* dwarf_getscopes.c (pc_match): Swallow dwarf_haspc error return when
error code is DWARF_E_NOERROR (0).
* dwarf_getscopes.c (pc_record): Always bail early if DIE->prune.
Fix typo in __libdw_visit_scopes argument.
* dwarf_getscopes.c (pc_match): Check dwarf_haspc error return,
swallow DWARF_E_NO_DEBUG_RANGES but not other errors.
2007-07-03 Roland McGrath <>
* libdw.h (__extern_inline): New macro.
[__OPTIMIZE__] (dwarf_whatattr, dwarf_whatform): Use it.
2007-04-16 Roland McGrath <>
* (ELFUTILS_0.127): Add dwfl_module_address_section.
2007-04-05 Roland McGrath <>
* dwarf_getsrcdirs.c: New file.
* (libdw_a_SOURCES): Add it.
* libdw.h: Declare dwarf_getsrcdirs.
* (ELFUTILS_0.127): Add it.
* libdwP.h (struct Dwarf_Files_s): New member ndirs.
* dwarf_getsrclines.c (dwarf_getsrclines): Don't clobber NDIRLIST to
zero before we use it to check for DWARF_E_INVALID_DIR_IDX.
Save DIRARRAY in the Dwarf_Files.
* dwarf_ranges.c (dwarf_ranges): Don't sign-extend 32-bit BEGIN
address to check for all-ones base address entry. Check directly.
Reported by Sébastien Dugué <>.
2007-03-25 Roland McGrath <>
* dwarf_begin_elf.c (check_section): Return Dwarf * instead of void.
Return NULL when freeing RESULT on error.
(global_read, scngrp_read): Check return value from check_section,
break out of loop after it has freed RESULT.
(valid_p): Handle null argument.
2007-03-12 Roland McGrath <>
* (ELFUTILS_0.127): Add dwfl_report_begin_add.
2007-03-04 Roland McGrath <>
* (ELFUTILS_0.127): New version set, inherits from
ELFUTILS_0.126. Add dwfl_module_addrsym.
2007-02-10 Roland McGrath <>
* dwarf.h (DW_OP_fbreg): Comment fix.
2007-02-03 Roland McGrath <>
* dwarf_getelf.c (dwarf_getelf): Renamed from dwarf_get_elf.
* (ELFUTILS_0.126): New version set, inherits from
ELFUTILS_0.122. Move dwarf_getelf there; it was never truly
exported in the past.
2006-12-17 Roland McGrath <>
* dwarf_getlocation.c (dwarf_getlocation_addr): Use zero as base
address when the CU is missing attributes due to buggy GCC.
2006-08-29 Roland McGrath <>
* libdw.h (dwarf_diecu): Add __nonnull_attribute__.
(dwarf_child): Don't list arg 1 in __nonnull_attribute__.
* libdw_alloc.c (__libdw_allocate): Take new ALIGN argument, make sure
result is aligned. Adjust NEWP->remaining here for this allocation.
* libdwP.h: Update decl.
(libdw_alloc): Update caller.
2006-07-12 Ulrich Drepper <>
* dwarf_child.c: Adjust for internal_function_def removal.
* dwarf_getabbrev.c: Likewise.
* dwarf_tag.c: Likewise.
* libdw_form.c: Likewise.
* memory-access.c: Likewise.
2006-06-28 Roland McGrath <>
* Export dwfl_linecu, dwfl_line_comp_dir.
* Bump to 0.122; export dwfl_module_getsymtab and
2006-05-27 Ulrich Drepper <>
* libdw.h: Add extern "C".
2006-05-22 Ulrich Drepper <>
* dwarf_getaranges.c (dwarf_getaranges): Handle files without
aranges information.
2006-05-21 Ulrich Drepper <>
* libdw.h: Add nonnull attributes to dwarf_tag, dwarf_getattrs,
2006-02-28 Roland McGrath <>
* dwarf.h: Add missing DW_ATE_*, DW_TAG_*, DW_LANG_*, DW_CFA_*,
DW_OP_* values, to match DWARF 3.0. Add new DW_DS_*, DW_END_*
values from DWARF 3.0.
2006-02-22 Roland McGrath <>
* Bump to 0.120; export dwfl_version.
2005-12-22 Roland McGrath <>
* Bump to 0.119; export dwfl_linux_proc_maps_report.
2005-12-12 Roland McGrath <>
* dwarf_ranges.c: Copy CU base address-finding code from
2005-12-09 Roland McGrath <>
* dwarf_getlocation.c (dwarf_getlocation_addr): Add some unlikelys.
Delay CU base lookup until it's needed.
If CU base lookup fails with no error, flag invalid DWARF.
2005-11-25 Roland McGrath <>
* Bump to 0.118; export dwfl_module_register_names.
2005-11-15 Roland McGrath <>
* [BUILD_STATIC] (AM_CFLAGS): Add -fpic.
2005-11-13 Roland McGrath <>
* Bump to 0.117; export dwfl_module_return_value_location.
2005-10-27 Roland McGrath <>
* dwarf_entry_breakpoints.c (search_range): Fix binary search code;
don't match end_sequence markers.
* dwarf_getsrclines.c (compare_lines): Sort end_sequence markers
before normal records at the same address.
* dwarf_getsrc_die.c (dwarf_getsrc_die): Don't match an end_sequence
2005-10-26 Roland McGrath <>
* dwarf_getfuncs.c (dwarf_getfuncs): Use Dwarf_Die, not Dwarf_Func.
* dwarf_func_file.c: Renamed to ...
* dwarf_decl_file.c: ... here.
* dwarf_func_col.c: Renamed to ...
* dwarf_decl_column.c: ... here.
* dwarf_func_line.c: Renamed to ...
* dwarf_decl_line.c: ... here.
(dwarf_func_line): Renamed to ...
(dwarf_decl_line): ... this. Take a Dwarf_Die * argument.
(__libdw_func_intval): Renamed __libdw_attr_intval.
* dwarf_func_name.c: File removed.
* dwarf_func_lowpc.c: File removed.
* dwarf_func_highpc.c: File removed.
* dwarf_func_entrypc.c: File removed.
* dwarf_func_die.c: File removed.
* (libdw_a_SOURCES): Updated.
* libdw.h: Update decls.
(Dwarf_Func): Type removed.
* libdwP.h: Update decls.
(struct Dwarf_Func_s): Type removed.
* Updated.
* libdwP.h (CUDIE): New macro.
* dwarf_getlocation.c (dwarf_getlocation_addr): Use it.
* dwarf_getscopes_die.c (dwarf_getscopes_die): Likewise.
* dwarf_ranges.c (dwarf_ranges): Likewise.
* dwarf_getloclist.c: Renamed to ...
* dwarf_getlocation.c: ... here.
(getloclist): Renamed to getlocation.
(dwarf_getloclist): Renamed to dwarf_getlocation.
(dwarf_addrloclists): Renamed to dwarf_getlocation_addr.
* (libdw_a_SOURCES): Updated.
* libdw.h (dwarf_getloclist): Renamed to dwarf_getlocation.
(dwarf_addrloclists): Renamed dwarf_getlocation_addr.
(Dwarf_Loc): Renamed Dwarf_Op.
* libdwP.h (struct loc_s): Update use.
* Update map.
* dwarf_entry_breakpoints.c: Use the second line record within the
function, regardless of its source location data.
2005-10-25 Roland McGrath <>
* dwarf_entry_breakpoints.c: Fall back to entrypc for contiguous too.
* Add dwarf_entrypc, dwarf_entry_breakpoints.
2005-10-14 Roland McGrath <>
* dwarf_diecu.c (dwarf_diecu): New file.
* (libdw_a_SOURCES): Add it.
* libdw.h: Declare dwarf_diecu.
* Export it.
* Bump to 0.116; export dwarf_ranges.
2005-09-20 Roland McGrath <>
* dwarf_haspc.c: Use dwarf_ranges.
* dwarf_entry_breakpoints.c: Likewise.
* dwarf_ranges.c: New file.
* (libdw_a_SOURCES): Add it.
* libdw.h: Declare dwarf_ranges.
* libdwP.h: Add INTDECL.
2005-09-14 Roland McGrath <>
* dwarf_entry_breakpoints.c (dwarf_entry_breakpoints): Fix braino in
prologue_end marker scanning loop.
2005-09-11 Roland McGrath <>
* dwarf.h: Comment typo fix.
2005-09-07 Roland McGrath <>
* dwarf_entry_breakpoints.c: New file.
* (libdw_a_SOURCES): Add it.
* libdw.h: Declare dwarf_entry_breakpoints.
* dwarf_entrypc.c: New file.
* (libdw_a_SOURCES): Add it.
* libdw.h: Declare dwarf_entrypc.
* libdwP.h: Add INTDECL.
2005-08-28 Ulrich Drepper <>
* Use $(LINK) not $(CC) when creating DSO.
(%.os): Use COMPILE.os.
(COMPILE.os): Filter out gconv options.
2005-08-27 Roland McGrath <>
* dwarf_getscopes.c (dwarf_getscopes): Rewritten using
* dwarf_getscopes_die.c: New file.
* (libdw_a_SOURCES): Add it.
* libdw.h: Declare dwarf_getscopes_die.
* Bump to 0.115 and add it.
* libdw_visit_scopes.c (__libdw_visit_scopes): Pass a struct
containing a DIE and its parent pointer, instead of just Dwarf_Die.
Take two functions for both preorder and postorder visitors.
* libdwP.h: Update decl.
(struct Dwarf_Die_Chain): New type.
* dwarf_func_inline.c: Update uses.
* dwarf_diename.c (dwarf_diename): Use dwarf_attr_integrate.
* libdwP.h: Add INTDECL.
* dwarf_func_name.c (dwarf_func_name): Use dwarf_diename.
2005-08-23 Roland McGrath <>
* dwarf_attr_integrate.c (dwarf_attr_integrate): Treat
DW_AT_specification the same as DW_AT_abstract_origin.
2005-08-20 Roland McGrath <>
* Add dwfl_cumodule, remove dwfl_linecu.
Add dwfl_linux_kernel_report_offline, dwfl_offline_section_address,
and dwfl_report_offline.
2005-08-19 Roland McGrath <>
* Bump version to ELFUTILS_0.114 for libdwfl changes.
Add dwfl_module_relocate_address, dwfl_module_relocations,
2005-08-18 Roland McGrath <>
* dwarf_getscopes.c (dwarf_getscopes): Include the CU itself as
outermost scope in the results.
2005-08-15 Roland McGrath <>
* dwarf_func_inline.c: New file.
* (libdw_a_SOURCES): Add it.
* libdw.h: Declare dwarf_func_inline, dwarf_func_inline_instances.
* Add them.
* dwarf_func_die.c: New file.
* (libdw_a_SOURCES): Add it.
* libdw.h: Declare dwarf_func_die.
* Add it. Bump version to ELFUTILS_0.114.
2005-08-10 Ulrich Drepper <>
* dwarf_getsrclines.c (dwarf_getsrclines): Correct fallout of renaming
of DW_LNS_set_epilog_begin.
2005-08-09 Roland McGrath <>
* dwarf.h (DW_LNS_set_epilog_begin): Renamed DW_LNS_set_epilogue_begin.
* dwarf_end.c: Add INTDEF.
* dwarf_error.c (dwarf_errmsg): Likewise.
* libdwP.h (dwarf_end, dwarf_errmsg): Add INTDECLs.
2005-08-01 Roland McGrath <>
* dwarf_getaranges.c (dwarf_getaranges): Check for bogus offset.
* dwarf_getabbrev.c (__libdw_getabbrev): Likewise.
2005-07-28 Ulrich Drepper <>
* ( No need to link with libeu.a anymore.
(libdw_a_LIBADD): Add all files from libdwfl.a.
2005-07-27 Roland McGrath <>
* ( Link ../libdwfl/libdwfl_pic.a in,
along with ../libebl/libebl.a and ../lib/libeu.a;
depend on ../libelf/
(libdw_so_LDADD): New variable.
* Add dwfl_* symbols formerly in ../libdwfl/
* Define an empty base version and move all symbols to
version ELFUTILS_0.111; don't define ELFUTILS_1.0 at all yet.
2005-07-23 Ulrich Drepper <>
* dwarf_error.c: Add internal alias for dwarf_errno.
* libdwP.h: Declare __dwarf_errno_internal.
* dwarf_getloclist.c: Use INTDEF for dwarf_errno.
* dwarf_error.c [USE_TLS]: Actually use __thread in definition of
2005-06-01 Roland McGrath <>
* dwarf_getaranges.c (dwarf_getaranges): Sort result array.
* dwarf_getarange_addr.c (dwarf_getarange_addr): Use binary search.
2005-06-08 Roland McGrath <>
* memory-access.h (get_uleb128_step, get_uleb128): Remove casts.
(get_sleb128_step, get_sleb128): Likewise.
* dwarf_getattrs.c (dwarf_getattrs): Add consts.
* dwarf_getloclist.c (getloclist): Likewise.
* dwarf_formblock.c (dwarf_formblock): Likewise.
* dwarf_getsrclines.c (dwarf_getsrclines): Likewise.
* dwarf_getabbrevattr.c (dwarf_getabbrevattr): Likewise.
* dwarf_formref.c (dwarf_formref): Likewise.
* dwarf_formsdata.c (dwarf_formsdata): Likewise.
* dwarf_formudata.c (dwarf_formudata): Likewise.
* dwarf_haschildren.c (dwarf_haschildren): Likewise.
* dwarf_child.c (__libdw_find_attr, __libdw_find_attr): Likewise.
* dwarf_tag.c (dwarf_tag): Likewise.
* dwarf_getabbrev.c (__libdw_getabbrev): Likewise.
* memory-access.c (__libdw_get_uleb128, __libdw_get_sleb128): Likewise.
* libdw_form.c (__libdw_form_val_len): Likewise.
* libdwP.h: Update decl.
2005-06-04 Roland McGrath <>
* memory-access.h (get_uleb128_rest_return): New macro.
[! IS_LIBDW] (__libdw_get_uleb128): New static, defined using it.
(get_sleb128_rest_return): New macro.
[! IS_LIBDW] (__libdw_get_sleb128): New static, defined using it.
* memory-access.c: New file.
* (libdw_a_SOURCES): Add it.
2005-05-31 Roland McGrath <>
* dwarf_formref_die.c (dwarf_formref_die): Add CU header offset to
formref offset.
2005-05-30 Roland McGrath <>
* dwarf_getloclist.c (dwarf_addrloclists): Use DW_AT_entry_pc for base
address if DW_AT_low_pc is missing. Not to spec, but GCC generates it.
* dwarf_getloclist.c (dwarf_addrloclists): Don't sign-extend 4-byte
BEGIN value. Instead, match base address entries separately for
32/64 size cases.
2005-05-28 Roland McGrath <>
* dwarf_getloclist.c (dwarf_addrloclists): Fix decoding to advance
past location expression contents.
2005-05-23 Roland McGrath <>
* dwarf_getsrclines.c: Comment typo fix.
* dwarf_haspc.c (dwarf_haspc): Fix CU DIE address calculation.
* dwarf_getloclist.c (dwarf_addrloclists): Likewise.
2005-05-22 Ulrich Drepper <>
* libdwP.h: Only use INTDECL for alias prototypes.
2005-05-19 Roland McGrath <>
* dwarf_getloclist.c (attr_ok): Permit DW_AT_static_link too.
* dwarf_getscopevar.c: New file.
* (libdw_a_SOURCES): Add it.
* libdw.h: Declare dwarf_getscopevar.
* dwarf_getsrcfiles.c: Add INTDEF.
* dwarf_haschildren.c: Likewise.
* libdwP.h (dwarf_getsrcfiles, dwarf_haschildren): Add INTDECL.
* dwarf_getscopes.c: New file.
* (libdw_a_SOURCES): Add it.
* libdw.h: Declare dwarf_getscopes.
* Add it.
2005-05-18 Roland McGrath <>
* libdwP.h (IDX_debug_ranges): New enum constant.
* dwarf_begin_elf.c (dwarf_scnnames): Add it for ".debug_ranges".
* libdwP.h (DWARF_E_NO_DEBUG_RANGES): New enum constant.
* dwarf_error.c (errmsgs): Add it.
* dwarf_haspc.c: New file.
* libdw.h: Declare dwarf_haspc.
* Add it.
* libdwP.h: Add INTDECL.
* dwarf_attr_integrate.c: New file.
* dwarf_hasattr_integrate.c: New file.
* (libdw_a_SOURCES): Add them.
* libdw.h: Declare dwarf_attr_integrate, dwarf_hasattr_integrate.
* Add them.
* dwarf_hasattr.c: Add INTDEF.
* libdwP.h: Add INTDECL for it.
* dwarf_formref_die.c: New file.
* (libdw_a_SOURCES): Add it.
* libdw.h (dwarf_formref_die): Declare it.
* libdwP.h (dwarf_formref_die): Add INTDECL.
* Add it.
* dwarf_getloclist.c (attr_ok, getloclist): New functions, broken out
of ...
(dwarf_getloclist): ... here. Call them.
(dwarf_addrloclists): New function.
* libdw.h: Declare it.
* Add it.
* dwarf_getmacros.c (dwarf_getmacros): Don't bail at
DW_MACINFO_end_file. Recognize type 0 as terminator.
2005-05-05 Roland McGrath <>
* dwarf_getsrc_die.c (dwarf_getsrc_die): Use binary search.
* dwarf_getsrclines.c (dwarf_getsrclines): Sort result array, since
the line program does not produce all entries in ascending order.
2005-04-25 Ulrich Drepper <>
* dwarf_getsrc_file.c (dwarf_getsrc_file): Handle multiple
occurences (e.g., inlines) better.
2005-04-24 Ulrich Drepper <>
* libdw.h (DWARF_END_ABBREV): Define.
* dwarf_getabbrev.c (__libdw_getabbrev): Return DWARF_END_ABBREV if
end is reached.
* dwarf_offabbrev.c (dwarf_offabbrev): Return -1 on error, 1 if end
of records reached.
* dwarf_tag.c (__libdw_findabbrev): Also recognize DWARF_END_ABBREV
as error of __libdw_getabbrev.
2005-04-04 Ulrich Drepper <>
* dwarf_getsrc_file.c (dwarf_getsrc_file): Minor optimization.
* dwarf_getsrc_file.c (dwarf_getsrc_file): Always pass number of
results back to caller.
2005-04-04 Roland McGrath <>
* dwarf_getsrc_file.c (dwarf_getsrc_file): Use size_t for CUHL.
* dwarf_func_line.c (__libdw_func_intval): Use internal_function in
2005-04-04 Ulrich Drepper <>
* dwarf_getsrc_file.c (dwarf_getsrc_file): Use INTUSE.
* dwarf_getsrc_file.c: New file.
* (libdw_a_SOURCES): Add dwarf_getsrc_file.c.
* libdw.h: Declare dwarf_getsrc_file.
* Add dwarf_getsrc_file.
2005-04-02 Ulrich Drepper <>
* dwarf_func_entrypc.c: New file.
* dwarf_func_col.c: New file.
* dwarf_func_line.c: New file.
* dwarf_func_file.c: New file.
* libdw.h: Add prototypes for new functions.
* Add dwarf_func_entrypc, dwarf_func_col, dwarf_func_line,
* (libdw_a_SOURCES): Add dwarf_func_entrypc.c,
dwarf_func_col.c, dwarf_func_line.c, dwarf_func_file.c.
* libdwP.h (struct Dwarf_Func_s): Add cudie element.
Declare __libdw_func_intval and __dwarf_formsdata_internal.
* dwarf_getfuncs.c: Also fill in cudie in Dwarf_Func object.
* dwarf_formsdata.c: Use INTUSE and INTDEF to avoid PLTs.
* dwarf.h: Add some DWARF3 definitions.
2005-04-01 Ulrich Drepper <>
* dwarf_getfuncs.c: New file.
* dwarf_func_highpc.c: New file.
* dwarf_func_lowpc.c: New file.
* dwarf_func_name.c: New file.
* (libdw_a_SOURCES): Add dwarf_getfuncs.c,
dwarf_func_highpc.c, dwarf_func_lowpc.c, and dwarf_func_name.c.
* Add dwarf_getfuncs, dwarf_func_highpc, dwarf_func_lowpc,
and dwarf_func_name.
* libdw.h: Add prototypes for new functions.
* dwarf_child.c: Use INTUSE and INTDEF to avoid PLTs.
* dwarf_siblingof.c: Likewise.
* dwarf_dieoffset.c: Likewise.
* dwarf_highpc.c: Likewise.
* dwarf_lowpc.c: Likewise.
* libdwP.h: Add prototypes for internal functions.
Define Dwarf_Func_s structure.
2005-03-29 Ulrich Drepper <>
* libdw.h: Add padding in Dwarf_die.
* dwarf_arrayorder.c: Use INTUSE and INTDEF to avoid PLTs.
* dwarf_attr.c: Likewise.
* dwarf_begin.c: Likewise.
* dwarf_begin_elf.c: Likewise.
* dwarf_bitoffset.c: Likewise.
* dwarf_bitsize.c: Likewise.
* dwarf_bytesize.c: Likewise.
* dwarf_diename.c: Likewise.
* dwarf_formaddr.c: Likewise.
* dwarf_formblock.c: Likewise.
* dwarf_formref.c: Likewise.
* dwarf_formstring.c: Likewise.
* dwarf_formudata.c: Likewise.
* dwarf_getarange_addr.c: Likewise.
* dwarf_getarangeinfo.c: Likewise.
* dwarf_getaranges.c: Likewise.
* dwarf_getloclist.c: Likewise.
* dwarf_getmacros.c: Likewise.
* dwarf_getsrc_die.c: Likewise.
* dwarf_getsrcfiles.c: Likewise.
* dwarf_getsrclines.c: Likewise.
* dwarf_highpc.c: Likewise.
* dwarf_lowpc.c: Likewise.
* dwarf_nextcu.c: Likewise.
* dwarf_offdie.c: Likewise.
* dwarf_siblingof.c: Likewise.
* dwarf_srclang.c: Likewise.
* dwarf_tag.c: Likewise.
* libdw_findcu.c: Likewise.
* libdwP.h: Add prototypes for internal functions.
* dwarf_addrdie.c: New file.
* dwarf_macro_opcode.c: New file.
* dwarf_macro_param1.c: New file.
* dwarf_macro_param2.c: New file.
* libdw.h: Add declarations. Move Dwarf_Macro definition to libdwP.h.
* libdwP.h: Remove Dwarf_Macro definition.
* (libdw_a_SOURCES): Add dwarf_addrdie.c,
dwarf_macro_opcode.c, dwarf_macro_param1.c, and dwarf_macro_param2.c.
* Add entries for new functions.
2005-03-21 Ulrich Drepper <>
* libdw.h: Handle broken gcc < 4.
2005-02-15 Ulrich Drepper <>
* Makefile (AM_CFLAGS): Add -Wunused -Wextra -Wformat=2.
* dwarf_begin_elf.c: Fix warnings.
* dwarf_dieoffset.c: Likewise.
* dwarf_end.c: Likewise.
* dwarf_error.c: Likewise.
* dwarf_getpubnames.c: Likewise.
* libdwP.h: Add new error values.
* dwarf_error.c: Support new error values.
* dwarf_getpubnames.c: Check parameter value.
2005-02-05 Ulrich Drepper <>
* Check for text relocations in constructed DSO.
* [MUDFLAP] (AM_CFLAGS): Add -fmudflap.
2005-02-04 Ulrich Drepper <>
* dwarf_siblingof.c (dwarf_siblingof): Add some buffer boundary
checks to not read over buffer boundaries for ill-formed DWARF data.
2004-09-25 Ulrich Drepper <>
* dwarf_child.c: Make compile with gcc 4.0.
* dwarf_error.c: Likewise.
* dwarf_formblock.c: Likewise.
* dwarf_getabbrev.c: Likewise.
* dwarf_getattrs.c: Likewise.
* dwarf_getsrclines.c: Likewise.
* dwarf_tag.c: Likewise.
* libdw_form.c: Likewise.
2004-01-20 Ulrich Drepper <>
* Support building with mudflap.
* dwarf_getloclist.c: Fix warnings gcc 3.4 spits out.
* dwarf_getsrclines.c: Likewise.
* dwarf_memory-access.h: Likewise.
2004-01-19 Ulrich Drepper <>
* dwarf_getsrcfiles.c: Third parameter can be NULL.
* libdw.h: Define Dwarf_macro. Declare dwarf_getmacros.
Third parameter of dwarf_getsrcfiles can be NULL.
* Add dwarf_getmacros.
* (libdw_a_SOURCES): Add dwarf_getmacros.
* dwarf_getmacros.c: New file.
2004-01-18 Ulrich Drepper <>
* libdw.h: Second parameter of dwarf_getaranges can be NULL.
* dwarf_nextcu.c: Return -1 if dwarf parameter is NULL.
* dwarf_getsrclines.c:
Use read_2ubyte_unaligned_inc instead of _inc-less variant.
* dwarf_getaranges.c: Allow naranges parameter to be NULL.
* libdwP.h (_): Use elfutils domain.
* dwarf_getsrclines.c (dwarf_getsrclines): Add more branch prediction.
* dwarf_getsrclines.c: Fix typo in comment.
2004-01-17 Ulrich Drepper <>
* Support building with mudflap.
2004-01-16 Ulrich Drepper <>
* memory-access.h: Add lots of const in case a pointer passed is const.
* dwarf_formflag.c: New file.
* dwarf_getattrs.c: New file.
* dwarf_error.c: Add new error value.
* libdw.h: Add prototypes for new functions. Adjust prototype for
* Add new functions.
* dwarf_getpubnames.c: Change type of return value and fourth parameter
to ptrdiff_t.
* libdwP.h: Add new error value.
* (libdw_a_SOURCES): Add dwarf_getattrs.c and
* dwarf_getpubnames.c (dwarf_getpubnames): Just fail if dbg is NULL.
2004-01-12 Ulrich Drepper <>
* dwarf_getarange_addr.c: New file
* dwarf_getarangeinfo.c: New file.
* dwarf_getaranges.c: New file.
* dwarf_onerange.c: New file.
* libdw.h: Declare new functions. Define Dwarf_Arange and
* Add new functions.
* libdwP.h: Add new errors. Add aranges member to struct Dwarf.
Define Dwarf_Aranges_s and Dwarf_Arange_s.
* (libdw_a_SOURCES): Add dwarf_getaranges.c,
dwarf_onearange.c, dwarf_getarangeinfo.c, dwarf_getarange_addr.c.
* dwarf_error.c: Add new message.
2004-01-11 Ulrich Drepper <>
* (libdw_a_SOURCES): Add dwarf_lineaddr.c, dwarf_linecol.c,
dwarf_linebeginstatement.c, dwarf_lineendsequence.c, dwarf_lineblock.c,
dwarf_lineprologueend.c, dwarf_lineepiloguebegin.c, dwarf_onesrcline.c.
* dwarf_error.c: Add another message.
* dwarf_getsrc_die.c: Adjust for Dwarf_Files and Dwarf_Lines
* dwarf_filesrc.c: Likewise.
* dwarf_getsrcfiles.c: Likewise.
* dwarf_getsrclines.c: Likewise.
* dwarf_lineaddr.c: New file.
* dwarf_linebeginstatement.c: New file.
* dwarf_lineblock.c: New file.
* dwarf_linecol.c: New file.
* dwarf_lineendsequence.c: New file.
* dwarf_lineepiloguebegin.c: New file.
* dwarf_lineno.c: New file.
* dwarf_lineprologueend.c: New file.
* dwarf_onesrcline.c: New file.
* dwarf_lineno.c: Change interface to store result in object pointed
to by second parameter.
* libdw.h: Add prototypes for new functions. Change dwarf_lineno
prototype. Define Dwarf_Files and Dwarf_Lines.
* Add new functions.
* libdwP.h: Define Dwarf_Files_s and Dwarf_Lines_s.
* libdw_findcu.c: Don't initialize nlines field.
* dwarf_siblingof: Little optimization.
* dwarf_begin.c: Remember that the ELF descriptor must be closed.
* dwarf_end.c: Close ELF descriptor if free_elf is set.
* libdwP.h (struct Dwarf): Add free_elf field.
* (libdw_a_SOURCES): Add dwarf_getstring.c and
* dwarf_getstring.c: New file.
* dwarf_offabbrev.c: New file.
* Add dwarf_getstring and dwarf_offabbrev.
* dwarf_getabbrev.c (__libdw_getabbrev): Add new dbg and result
parameters. Don't allocate memory if not necessary and don't lookup
previous results if no CU given.
(dwarf_getabbrev): Adjust call to __libdw_getabbrev.
* dwarf_tag.c: Adjust call to __libdw_getabbrev.
* libdw.h: Declare dwarf_offabbrev and dwarf_getstring.
* libdwP.h: Change prototype for __libdw_getabbrev.
* dwarf_getabbrevattr.c: Add offsetp parameter. Fill in before
returning if this is wanted.
2004-01-09 Ulrich Drepper <>
* dwarf_nextcu.c: Add new parameter offset_sizep. Initialize it
with offset_size value.
* libdw.h: Adjust dwarf_nextcu prototype.
* libdwP.h (struct Dwarf_CU): Add offset_size member.
* libdw_findcu.c: Adjust dwarf_nextcu call. Initialize offset_size
member of new CU struct.
* dwarf_formstring.c: Depend on offset_size not address_size for
DW_FORM_strp handling.
* dwarf_form.c: Likewise for DW_FORM_strp and DW_FORM_ref_addr.
* dwarf_tag.c (__libdw_findabbrev): Return correct value for
failing lookup.
(dwarf_tag): Correctly recognize failed lookup.
* dwarf_end.c (cu_free): Call tdestroy for locs member. Use new
function noop_free.
* dwarf_error.c: Add message for DWARF_E_NO_BLOCK.
* dwarf_formblock.c: New file.
* dwarf_getloclist.c: Rewrite to handle a single block.
* libdw.h: Define Dwarf_Block. Rename Dwarf_Loc members. Remove
Dwarf_Locdesc definition. Declare dwarf_formblock. Remove
dwarf_getloclistent declaration.
* Add dwarf_formblock, remove dwarf_getloclistent.
* libdwP.h: Define struct loc_s and DWARF_E_NO_BLOCK.
Add locs member to struct Dwarf_CU.
* libdw_fundcu.c: Initialize locs member of new CU.
* (libdw_a_SOURCES): Add dwarf_formblock.c.
Remove dwarf_getloclistent.c.
2004-01-07 Ulrich Drepper <>
* libdw.h: Use __nonnull__ attribute only for gcc >= 3.3.
* libdwP.h: Likewise.
* dwarf_getloclist.c: New file.
* dwarf_getloclistent.c: New file.
* libdw.h: Define Dwarf_Loc and Dwarf_Locdesc.
Declare dwarf_getloclistent and dwarf_getloclist.
* Add dwarf_getloclistent and dwarf_getloclist.
* libdwP.h: Define DWARF_E_NO_LOCLIST.
* (libdw_a_SOURCES): Add dwarf_getloclistent.c and
* dwarf_error.c: More error messages.
2004-01-06 Ulrich Drepper <>
* dwarf_getsrclines.c: Remove debugging support.
* dwarf_getsrcfiles.c: New file.
* dwarf_filesrc.c: New file.
* libdw.h: Declare these functions. Define Dwarf_File.
* libdwP.c: Adjust Dwarf_File_s definition.
* Add these functions.
* (libdw_a_SOURCES): Add dwarf_getsrcfiles.c and
* dwarf_getsrclines.c: Initialize cu->files.
2004-01-05 Ulrich Drepper <>
* libdw.h: Add more nonnull function attributes.
* dwarf_begin_elf.c (dwarf_begin_elf): Don't initialize mem_tail->next.
* dwarf_end.c (cu_free): New function.
(dwarf_end): Also free CU tree. Correct freeing of memory blocks.
* dwarf_error.c (errmsgs): Add new messages.
* dwarf_getsrc_die.c: New file.
* dwarf_getsrclines.c: New file.
* dwarf_lineno.c: New file.
* dwarf_linesrc.c: New file.
* dwarf_nextcu.c (dwarf_nextcu): Use read_*byte_unaligned_inc
instead of the *_inc-less variants.
* libdw.h: Define Dwarf_Line. Add some function attributes. Declare
dwarf_getsrclines, dwarf_getsrc_die, dwarf_lineno, and dwarf_linesrc.
* Add dwarf_getsrclines, dwarf_getsrc_die, dwarf_lineno,
and dwarf_linesrc.
* libdwP.h: Add more error codes.
(struct Dwarf): Remove member.
(Dwarf_File): Define type.
(struct Dwarf_Line_s): Define type.
(struct Dwarf_CU): Add lines and nlines members.
(libdw_alloc): Define local variable _tail and use it.
Add some function attributes.
* libdw_alloc.c (__libdw_allocate): Don't initialize next member.
* libdw_findcu.c (__libdw_findcu): Initialize lines and nlines members.
* memory-access.h: Add unlikely for the endian conversion paths.
* (AM_CFLAGS): Add -std parameter.
(libdw_a_SOURCES): Add dwarf_getsrclines, dwarf_getsrc_die,
dwarf_lineno, and dwarf_linesrc.
2003-08-11 Ulrich Drepper <>
* Moved to CVS archive.