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NEWS
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NEWS
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Version 0.191 "Bug fixes in C major"
libdw: dwarf_addrdie now supports binaries lacking a .debug_aranges
section.
Improved support for DWARF package files. Add new function
dwarf_cu_dwp_section_info.
debuginfod: Caching eviction logic improvements to improve retention
of small/frequent/slow files such as Fedora's vdso.debug.
srcfiles: Can now fetch the source files of a DWARF/ELF file and
place them into a zip.
Version 0.190 "Woke!"
CONTRIBUTING: Switch from real name policy to known identity policy.
Updated ChangeLog policy (no more separate ChangeLog files).
There is a SECURITY bug policy now.
The default branch is now 'main'.
libelf: Add RELR support.
libdw: Recognize .debug_[ct]u_index sections
readelf: Support readelf -Ds, --use-dynamic --symbol.
Support .gdb_index version 9
scrlines: New tool that compiles a list of source files associated
with a specified dwarf/elf file.
debuginfod: Schema change (reindexing required, sorry!) for a 60%
compression in filename representation, which was a large
part of the sqlite index; also, more deliberate sqlite
-wal management during scanning using the
--scan-checkpoint option.
backends: Various LoongArch updates.
Version 0.189 "Don't deflate!"
configure: eu-nm, eu-addr2line and eu-stack can provide demangled symbols
when linked with libstdc++. Use --disable-demangler to disable.
A new option --enable-sanitize-memory has been added for msan
sanitizer support.
libelf: elf_compress now supports ELFCOMPRESS_ZSTD when build against
libzstd
libdwfl: dwfl_module_return_value_location now returns 0 (no return type)
for DIEs that point to a DW_TAG_unspecified_type.
elfcompress: -t, --type= now support zstd if libelf has been build with
ELFCOMPRESS_ZSTD support.
backends: Add support for LoongArch and Synopsys ARCv2 processors.
Version 0.188 "no section left behind"
readelf: Add -D, --use-dynamic option.
debuginfod-client: Add $DEBUGINFOD_HEADERS_FILE setting to supply outgoing
HTTP headers. Add new function debuginfod_find_section.
debuginfod: Add --disable-source-scan option.
libdwfl: Add new function dwfl_get_debuginfod_client.
Add new function dwfl_frame_reg.
Add new function dwfl_report_offline_memory.
Version 0.187 "no zero negatives"
debuginfod: Support -C option for connection thread pooling.
debuginfod-client: Negative cache file are now zero sized instead of
no-permission files.
addr2line: The -A, --absolute option, which shows file names including
the full compilation directory is now the default. To get the
old behavior use the new option --relative.
readelf, elflint: Recognize FDO Packaging Metadata ELF notes
libdw, debuginfo-client: Load libcurl lazily only when files need to
be fetched remotely. libcurl is now never
loaded when DEBUGINFOD_URLS is unset. And when
DEBUGINFOD_URLS is set, libcurl is only loaded
when the debuginfod_begin function is called.
Version 0.186 "Just In Time"
debuginfod-client: Default $DEBUGINFOD_URLS is computed from drop-in files
/etc/debuginfod/*.urls rather than hardcoded into the
/etc/profile.d/debuginfod* scripts.
Add $DEBUGINFOD_MAXSIZE and $DEBUGINFOD_MAXTIME settings
for skipping large/slow transfers.
Add $DEBUGINFOD_RETRY for retrying aborted lookups.
debuginfod: Supply extra HTTP response headers, describing archive/file
names that satisfy the requested buildid content.
Support -d :memory: option for in-memory databases.
Protect against loops in federated server configurations.
Add -r option to use -I/-X regexes for grooming stale files.
Protect against wasted CPU from duplicate concurrent requests.
Limit the duration of groom ops roughly to rescan (-t) times.
Add --passive mode for serving from read-only database.
Several other performance improvements & prometheus metrics.
libdw: Support for the NVIDIA Cuda line map extensions.
DW_LNE_NVIDIA_inlined_call and DW_LNE_NVIDIA_set_function_name
are defined in dwarf.h. New functions dwarf_linecontext and
dwarf_linefunctionname
translations: Update Japanese translation.
Version 0.185 "oops, I did it again"
debuginfod-client: Simplify curl handle reuse so downloads which
return an error are retried.
elfcompress: Always exit with code 0 when the operation succeeds (even
when nothing was done). On error the exit code is now always 1.
Version 0.184 "negative results"
debuginfod: Use libarchive's bsdtar as the .deb-family file unpacker.
debuginfod-client: Client caches negative results. If a query for a
file failed with 404, an empty 000 permission
file is created in the cache. This will prevent
requesting the same file for the next 10 minutes.
Client objects now carry long-lived curl handles
for outgoing connections. This makes it more
efficient for multiple sequential queries, because
the TCP connections and/or TLS state info are kept
around awhile, avoiding O(100ms) setup latencies.
libdw: handle DW_FORM_indirect when reading attributes
translations: Update Polish translation.
Version 0.183 "100+ commits"
debuginfod: New thread-busy metric and more detailed error metrics.
New --fdcache-mintmp and tracking of filesystem freespace.
New increased webapi concurrency while grooming.
debuginfod-client: DEBUGINFOD_SONAME macro added to debuginfod.h which
can be used to dlopen the libdebuginfod.so library.
New function debuginfod_set_verbose_fd and
DEBUGINFOD_VERBOSE environment variable.
config: profile.sh and profile.csh won't export DEBUGINFOD_URLS unless
configured --enable-debuginfod-urls[=URLS]
elflint, readelf: Recognize SHF_GNU_RETAIN.
Handle SHT_X86_64_UNWIND as valid relocation target.
Version 0.182 "October Surprise!"
backends: Support for tilegx has been removed.
config: New /etc/profile.d files to provide default $DEBUGINFOD_URLS.
debuginfod: More efficient package traversal, tolerate various errors
during scanning, grooming progress is more visible and
interruptible, more prometheus metrics.
debuginfod-client: Now supports compressed (kernel) ELF images.
libdwfl: Add ZSTD compression support.
Version 0.181 "Show me your ARMs"
libelf: elf_update now compensates (fixes up) a bad sh_addralign for
SHF_COMPRESSED sections.
libdebuginfod: configure now takes --enable-libdebuginfod=dummy or
--disable-libdebuginfod for bootstrapping.
DEBUGINFOD_URLS now accepts "scheme-free" urls
(guessing at what the user meant, either http:// or file://)
readelf, elflint: Handle aarch64 bti, pac bits in dynamic table and gnu
property notes.
libdw, readelf: Recognize DW_CFA_AARCH64_negate_ra_state. Allows unwinding
on arm64 for code that is compiled for PAC (Pointer
Authentication Code) as long as it isn't enabled.
Version 0.180 "We got an L, we got an T, can we have a O?"
elflint: Allow SHF_EXCLUDE as generic section flag when --gnu is given.
libdw, readelf: Handle GCC LTO .gnu.debuglto_ prefix.
libdw: Use correct CU to resolve file names in dwarf_decl_file.
libdwfl: Handle debugaltlink in dwfl_standard_find_debuginfo.
size: Also obey radix printing for bsd format.
nm: Explicitly print weak 'V' or 'T' and common 'C' symbols.
Version 0.179 "All your packages are belong to us!"
debuginfod-client: When DEBUGINFOD_PROGRESS is set and the program doesn't
install its own debuginfod_progressfn_t show download
progress on stderr.
DEBUGINFOD_TIMEOUT is now defined as seconds to get at
least 100K, defaults to 90 seconds.
Default to $XDG_CACHE_HOME/debuginfod_client.
New functions debuginfod_set_user_data,
debuginfod_get_user_data, debuginfod_get_url and
debuginfod_add_http_header.
Support for file:// URLs.
debuginfod: Uses libarchive directly for reading rpm archives.
Support for indexing .deb/.ddeb archives through dpkg-deb
or bsdtar.
Generic archive support through -Z EXT[=CMD]. Which can be
used for example for arch-linux pacman files by using
-Z '.tar.zst=zstdcat'.
Better logging using User-Agent and X-Forwarded-For headers.
More prometheus metrics.
Support for eliding dots or extraneous slashes in path names.
debuginfod-find: Accept /path/names in place of buildid hex.
libelf: Handle PN_XNUM in elf_getphdrnum before shdr 0 is cached
Ensure zlib resource cleanup on failure.
libdwfl: dwfl_linux_kernel_find_elf and dwfl_linux_kernel_report_offline
now find and handle a compressed vmlinuz image.
readelf, elflint: Handle PT_GNU_PROPERTY.
translations: Updated Ukrainian translation.
Version 0.178 "All the build-id you can count!"
debuginfod: New server, client tool and library to index and fetch
ELF/DWARF files addressed by build-id through HTTP.
doc: There are now some manual pages for functions and tools.
backends: The libebl libraries are no longer dynamically loaded through
dlopen, but are now compiled into libdw.so directly.
readelf: -n, --notes now takes an optional "SECTION" argument.
-p and -x now also handle section numbers.
New option --dyn-sym to show just the dynamic symbol table.
libcpu: Add RISC-V disassembler.
libdw: Abbrevs and DIEs can now be read concurrently by multiple
threads through the same Dwarf handle.
libdwfl: Will try to use debuginfod when installed as fallback to
retrieve ELF and DWARF debug data files by build-id.
Version 0.177 "What is your category, class and taxonomy?"
elfclassify: New tool to analyze ELF objects.
readelf: Print DW_AT_data_member_location as decimal offset.
Decode DW_AT_discr_list block attributes.
libdw: Add DW_AT_GNU_numerator, DW_AT_GNU_denominator and DW_AT_GNU_bias.
libdwelf: Add dwelf_elf_e_machine_string.
dwelf_elf_begin now only returns NULL when there is an error
reading or decompressing a file. If the file is not an ELF file
an ELF handle of type ELF_K_NONE is returned.
backends: Add support for C-SKY.
Version 0.176 "At your own RISC-V"
build: Add new --enable-install-elfh option.
Do NOT use this for system installs (it overrides glibc elf.h).
backends: riscv improved core file and return value location support.
Fixes CVE-2019-7146, CVE-2019-7148, CVE-2019-7149, CVE-2019-7150,
CVE-2019-7664, CVE-2019-7665
Version 0.175
readelf: Handle multiple .debug_macro sections.
Recognize and parse GNU Property notes, NT_VERSION notes
and GNU Build Attribute ELF Notes.
strip: Handle SHT_GROUP correctly.
Add strip --reloc-debug-sections-only option.
Handle relocations against GNU compressed sections.
libdwelf: New function dwelf_elf_begin.
libcpu: Recognize bpf jump variants BPF_JLT, BPF_JLE, BPF_JSLT and BPF_JSLE.
backends: RISCV handles ADD/SUB relocations. Handle SHT_X86_64_UNWIND.
Fixes CVE-2018-18310, CVE-2018-18520 and CVE-2018-18521.
Version 0.174 "extended shnum"
libelf, libdw and all tools now handle extended shnum and shstrndx correctly.
elfcompress: Don't rewrite input file if no section data needs updating.
Try harder to keep same file mode bits (suid) on rewrite.
strip: Handle mixed (out of order) allocated/non-allocated sections.
unstrip: Handle SHT_GROUP sections.
backends: RISCV and M68K now have backend implementations to generate CFI based
backtraces.
Fixes CVE-2018-16062, CVE-2018-16402 and CVE-2018-16403.
Version 0.173 "crash free"
More fixes for crashes and hangs found by afl-fuzz. In particular various
functions now detect and break infinite loops caused by bad DIE tree cycles.
readelf: Will now lookup the size and signedness of constant value types
to display them correctly (and not just how they were encoded).
libdw: New function dwarf_next_lines to read CU-less .debug_line data.
dwarf_begin_elf now accepts ELF files containing just .debug_line
or .debug_frame sections (which can be read without needing a DIE
tree from the .debug_info section).
Removed dwarf_getscn_info, which was never implemented.
backends: Handle BPF simple relocations.
The RISCV backends now handles ABI specific CFI and knows about
RISCV register types and names.
Version 0.172 "DWARF5 bugs split!"
No functional changes compared to 0.171 "DWARF5 split!".
Various bug fixes in libdw and eu-readelf dealing with bad DWARF5 data.
Thanks to running the afl fuzzer on eu-readelf and various testcases.
eu-readelf -N is ~15% faster.
Version 0.171 "DWARF5 split!"
DWARF5 and split dwarf, including GNU DebugFission, are supported now.
Data can be read from the new DWARF sections .debug_addr, .debug_line_str,
.debug_loclists, .debug_str_offsets and .debug_rnglists. Plus the new
DWARF5 and GNU DebugFission encodings of the existing .debug sections.
Also in split DWARF .dwo (DWARF object) files. This support is mostly
handled by existing functions (dwarf_getlocation*, dwarf_getsrclines,
dwarf_ranges, dwarf_form*, etc.) now returning the data from the new
sections and data formats. But some new functions have been added
to more easily get information about skeleton and split compile units
(dwarf_get_units and dwarf_cu_info), handle new attribute data
(dwarf_getabbrevattr_data) and to keep references to Dwarf_Dies
that might come from different sections or files (dwarf_die_addr_die).
Not yet supported are .dwp (Dwarf Package) and .sup (Dwarf Supplementary)
files, the .debug_names index, the .debug_cu_index and .debug_tu_index
sections. Only a single .debug_info (and .debug_types) section are
currently handled.
readelf: Handle all new DWARF5 sections.
--debug-dump=info+ will show split unit DIEs when found.
--dwarf-skeleton can be used when inspecting a .dwo file.
Recognizes GNU locviews with --debug-dump=loc.
libdw: New functions dwarf_die_addr_die, dwarf_get_units,
dwarf_getabbrevattr_data and dwarf_cu_info.
libdw will now try to resolve the alt file on first use of
an alt attribute FORM when not set yet with dwarf_set_alt.
dwarf_aggregate_size() now works with multi-dimensional arrays.
libdwfl: Use process_vm_readv when available instead of ptrace.
backends: Add a RISC-V backend.
There were various improvements to build on Windows.
The sha1 and md5 implementations have been removed, they weren't used.
Version 0.170 "DWARF4 1/2"
libdw: Added new DWARF5 attribute, tag, character encoding, language code,
calling convention, defaulted member function and macro constants
to dwarf.h.
New functions dwarf_default_lower_bound and dwarf_line_file.
dwarf_peel_type now handles DWARF5 immutable, packed and shared tags.
dwarf_getmacros now handles DWARF5 .debug_macro sections.
strip: Add -R, --remove-section=SECTION and --keep-section=SECTION.
backends: The bpf disassembler is now always build on all platforms.
Version 0.169
backends: Add support for EM_PPC64 GNU_ATTRIBUTES.
Frame pointer unwinding fallback support for i386, x86_64, aarch64.
translations: Update Polish translation.
Version 0.168 "kthxbye"
http://elfutils.org/ is now hosted at http://sourceware.org/elfutils/
libelf: gelf_newehdr and gelf_newehdr now return void *.
libdw: dwarf.h corrected the DW_LANG_PLI constant name (was DW_LANG_PL1).
readelf: Add optional --symbols[=SECTION] argument to select section name.
Version 0.167 "disassemble this!"
libasm: Add eBPF disassembler for EM_BPF files.
backends: Add m68k and BPF backends.
ld: Removed.
dwelf: Add ELF/DWARF string table creation functions. dwelf_strtab_init,
dwelf_strtab_add, dwelf_strtab_add_len, dwelf_strtab_finalize,
dwelf_strent_off, dwelf_strent_str and dwelf_strtab_free.
Version 0.166 "bugs be gone!"
config: The default program prefix for the installed tools is now eu-.
Use configure --program-prefix="" to not use a program prefix.
Version 0.165 "big DWARF & tiny ELF"
elfcompress: New utility to compress or decompress ELF sections.
readelf: Add -z,--decompress option.
libelf: Add elf_compress, elf_compress_gnu, elf32_getchdr, elf64_getchdr
and gelf_getchdr.
libdwelf: New function dwelf_scn_gnu_compressed_size.
config: Add libelf and libdw pkg-config files.
backends: sparc support for core and live backtraces.
translations: Updated Polish translation.
Version 0.164 "strip, no unstrip!"
strip, unstrip: Handle ELF files with merged strtab/shstrtab tables.
Handle missing SHF_INFO_LINK section flags.
libelf: Use int64_t for offsets in libelf.h instead of loff_t.
libdw: dwarf.h Add preliminary DWARF5 DW_LANG_Haskell.
libdwfl: dwfl_standard_find_debuginfo now searches any subdir of the binary
path under the debuginfo root when the separate debug file couldn't
be found by build-id.
dwfl_linux_proc_attach can now be called before any Dwfl_Modules
have been reported.
backends: Better sparc and sparc64 support.
translations: Updated Ukrainian translation.
Provide default-yama-scope subpackage.
Version 0.163 "size matters"
Bug fixes only, no new features.
Version 0.162 "hard hat"
libdw: Install new header elfutils/known-dwarf.h.
dwarf.h Add preliminary DWARF5 constants DW_TAG_atomic_type,
DW_LANG_Fortran03, DW_LANG_Fortran08. dwarf_peel_type now also
handles DW_TAG_atomic_type.
addr2line: Input addresses are now always interpreted as hexadecimal
numbers, never as octal or decimal numbers.
New option -a, --addresses to print address before each entry.
New option -C, --demangle to show demangled symbols.
New option --pretty-print to print all information on one line.
ar: CVE-2014-9447 Directory traversal vulnerability in ar extraction.
backends: x32 support.
Version 0.161
libdw: New function dwarf_peel_type. dwarf_aggregate_size now uses
dwarf_peel_type to also provide the sizes of qualified types.
dwarf_getmacros will now serve either of .debug_macro and
.debug_macinfo transparently. New interfaces
dwarf_getmacros_off, dwarf_macro_getsrcfiles,
dwarf_macro_getparamcnt, and dwarf_macro_param are available
for more generalized inspection of macros and their parameters.
dwarf.h: Add DW_AT_GNU_deleted, DW_AT_noreturn, DW_LANG_C11,
DW_LANG_C_plus_plus_11 and DW_LANG_C_plus_plus_14.
Version 0.160
libdw: New functions dwarf_cu_getdwarf, dwarf_cu_die.
dwarf.h remove non-existing DW_TAG_mutable_type.
libdwfl: Handle LZMA .ko.xz compressed kernel modules.
unstrip: New option -F, --force to combining files even if some ELF headers
don't seem to match.
backends: Handle ARM THUMB functions. Add support for ppc64le ELFv2 abi.
Version 0.159
stack: New option -d, --debugname to lookup DWARF debuginfo name for frame.
New option -i, --inlines to show inlined frames using DWARF debuginfo.
libdwelf: New libdwelf.h header for libdw.so DWARF ELF Low-level Functions.
New function dwelf_elf_gnu_debuglink, dwelf_dwarf_gnu_debugaltlink,
and dwelf_elf_gnu_build_id.
libdw: Support for DWZ multifile forms DW_FORM_GNU_ref_alt and
DW_FORM_GNU_strp_alt is now enabled by default and no longer
experimental. Added new functions dwarf_getalt and dwarf_setalt
to get or set the alternative debug file used for the alt FORMs.
The dwfl_linux_proc_find_elf callback will now find ELF from
process memory for (deleted) files if the Dwfl has process state
attached.
libdwfl: The dwfl_build_id_find_debuginfo and dwfl_standard_find_debuginfo
functions will now try to resolve and set the alternative debug file.
backends: Add CFI unwinding for arm. Relies on .debug_frame.
Add arm process initial register state compatible mode to AARCH64.
Add aarch64 native and core unwind support.
other: All separate elfutils-robustify patches have been merged.
CVE-2014-0172 Check overflow before calling malloc to uncompress data.
Version 0.158
libdwfl: dwfl_core_file_report has new parameter executable.
New functions dwfl_module_getsymtab_first_global,
dwfl_module_getsym_info and dwfl_module_addrinfo.
Added unwinder with type Dwfl_Thread_Callbacks, opaque types
Dwfl_Thread and Dwfl_Frame and functions dwfl_attach_state,
dwfl_pid, dwfl_thread_dwfl, dwfl_thread_tid, dwfl_frame_thread,
dwfl_thread_state_registers, dwfl_thread_state_register_pc,
dwfl_getthread_frames, dwfl_getthreads, dwfl_thread_getframes
and dwfl_frame_pc.
addr2line: New option -x to show the section an address was found in.
stack: New utility that uses the new unwinder for processes and cores.
backends: Unwinder support for i386, x86_64, s390, s390x, ppc and ppc64.
aarch64 support.
Version 0.157
libdw: Add new functions dwarf_getlocations, dwarf_getlocation_attr
and dwarf_getlocation_die.
readelf: Show contents of NT_SIGINFO and NT_FILE core notes.
addr2line: Support -i, --inlines output option.
backends: abi_cfi hook for arm, ppc and s390.
Version 0.156
lib: New macro COMPAT_VERSION_NEWPROTO.
libdw: Handle GNU extension opcodes in dwarf_getlocation.
libdwfl: Fix STB_GLOBAL over STB_WEAK preference in dwfl_module_addrsym.
Add minisymtab support.
Add parameter add_p_vaddr to dwfl_report_elf.
Use DT_DEBUG library search first.
libebl: Handle new core note types in EBL.
backends: Interpret NT_ARM_VFP.
Implement core file registers parsing for s390/s390x.
readelf: Add --elf-section input option to inspect an embedded ELF file.
Add -U, --unresolved-address-offsets output control.
Add --debug-dump=decodedline support.
Accept version 8 .gdb_index section format.
Adjust output formatting width.
When highpc is in constant form print it also as address.
Display raw .debug_aranges. Use libdw only for decodedaranges.
elflint: Add __bss_start__ to the list of allowed symbols.
tests: Add configure --enable-valgrind option to run all tests under valgrind.
Enable automake parallel-tests for make check.
translations: Updated Polish translation.
Updates for Automake 1.13.
Version 0.155
libelf: elf*_xlatetomd now works for cross-endian ELF note data.
elf_getshdr now works consistently on non-mmaped ELF files after
calling elf_cntl(ELF_C_FDREAD).
Implement support for ar archives with 64-bit symbol table.
libdw: dwarf.h corrected the DW_LANG_ObjC constant name (was DW_LANG_Objc).
Any existing sources using the old name will have to be updated.
Add DW_MACRO_GNU .debug_macro type encodings constants, DW_ATE_UTF
and DW_OP_GNU_parameter_ref to dwarf.h.
Experimental support for DWZ multifile forms DW_FORM_GNU_ref_alt
and DW_FORM_GNU_strp_alt. Disabled by default. Use configure
--enable-dwz to test it.
readelf: Add .debug_macro parsing support.
Add .gdb_index version 7 parsing support.
Recognize DW_OP_GNU_parameter_ref.
backends: Add support for Tilera TILE-Gx processor.
translations: Updated Ukrainian translation.
Version 0.154
libelf: [g]elf[32|64]_offscn() do not match SHT_NOBITS sections at OFFSET.
libdw: dwarf_highpc function now handles DWARF 4 DW_AT_high_pc constant form.
Fix bug using dwarf_next_unit to iterate over .debug_types.
elflint: Now accepts gold linker produced executables.
The license is now GPLv2/LGPLv3+ for the libraries and GPLv3+ for stand-alone
programs. There is now also a formal CONTRIBUTING document describing how to
submit patches.
Version 0.153
libdw: Support reading .zdebug_* DWARF sections compressed via zlib.
libdwfl: Speed up dwfl_module_addrsym.
nm: Support C++ demangling.
ar: Support D modifier for "deterministic output" with no uid/gid/mtime info.
The U modifier is the inverse.
elfutils can be configured with the --enable-deterministic-archives
option to make the D behavior the default when U is not specified.
ranlib: Support -D and -U flags with same meaning.
readelf: Improve output of -wline. Add support for printing SDT elf notes.
Add printing of .gdb_index section.
Support for typed DWARF stack, call_site and entry_value.
strip: Add --reloc-debug-sections option.
Improved SHT_GROUP sections handling.
Version 0.152
Various build and warning nits fixed for newest GCC and Autoconf.
libdwfl: Yet another prelink-related fix for another regression.
Look for Linux kernel images in files named with compression suffixes.
elfcmp: New flag --ignore-build-id to ignore differing build ID bits.
New flag -l/--verbose to print all differences.
Version 0.151
libdwfl: Fix for more prelink cases with separate debug file.
strip: New flag --strip-sections to remove section headers entirely.
Version 0.150
libdw: Fix for handling huge .debug_aranges section.
libdwfl: Fix for handling prelinked DSO with separate debug file.
findtextrel: Fix diagnostics to work with usual section ordering.
libebl: i386 backend fix for multi-register integer return value location.
Version 0.149:
libdw: Decode new DW_OP_GNU_implicit_pointer operation;
new function dwarf_getlocation_implicit_pointer.
libdwfl: New function dwfl_dwarf_line.
addr2line: New flag -F/--flags to print more DWARF line information details.
strip: -g recognizes .gdb_index as a debugging section.
Version 0.148:
libdw: Accept DWARF 4 format: new functions dwarf_next_unit, dwarf_offdie_types.
New functions dwarf_lineisa, dwarf_linediscriminator, dwarf_lineop_index.
libdwfl: Fixes in core-file handling, support cores from PIEs.
When working from build IDs, don't open a named file that mismatches.
readelf: Handle DWARF 4 formats.
Version 0.147:
libdw: Fixes in CFI handling, best possible handling of bogus CFA ops.
libdwfl: Ignore R_*_NONE relocs, works around old (binutils) ld -r bugs.
Version 0.146:
libdwfl: New function dwfl_core_file_report.
Version 0.145:
Fix build with --disable-dependency-tracking.
Fix build with most recent glibc headers.
libelf: More robust to bogus section headers.
libdw: Fix CFI decoding.
libdwfl: Fix address bias returned by CFI accessors.
Fix core file module layout identification.
readelf: Fix CFI decoding.
Version 0.144:
libelf: New function elf_getphdrnum.
Now support using more than 65536 program headers in a file.
libdw: New function dwarf_aggregate_size for computing (constant) type
sizes, including array_type cases with nontrivial calculation.
readelf: Don't give errors for missing info under -a.
Handle Linux "VMCOREINFO" notes under -n.
Version 0.143:
libdw: Various convenience functions for individual attributes now use
dwarf_attr_integrate to look up indirect inherited attributes.
Location expression handling now supports DW_OP_implicit_value.
libdwfl: Support automatic decompression of files in XZ format,
and of Linux kernel images made with bzip2 or LZMA (as well as gzip).
Version 0.142:
libelf: Add elf_getshdrnum alias for elf_getshnum and elf_getshdrstrndx alias
for elf_getshstrndx and deprecate original names. Sun screwed up
their implementation and asked for a solution.
libebl: Add support for STB_GNU_UNIQUE.
elflint: Add support for STB_GNU_UNIQUE.
readelf: Add -N option, speeds up DWARF printing without address->name lookups.
libdw: Add support for decoding DWARF CFI into location description form.
Handle some new DWARF 3 expression operations previously omitted.
Basic handling of some new encodings slated for DWARF 4.
Version 0.141:
libebl: sparc backend fixes;
some more arm backend support
libdwfl: fix dwfl_module_build_id for prelinked DSO case;
fixes in core file support;
dwfl_module_getsym interface improved for non-address symbols
strip: fix infinite loop on strange inputs with -f
addr2line: take -j/--section=NAME option for binutils compatibility
(same effect as '(NAME)0x123' syntax already supported)
Version 0.140:
libelf: Fix regression in creation of section header
libdwfl: Less strict behavior if DWARF reader is just used to display data
Version 0.139:
libcpu: Add Intel SSE4 disassembler support
readelf: Implement call frame information and exception handling dumping.
Add -e option. Enable it implicitly for -a.
elflint: Check PT_GNU_EH_FRAME program header entry.
libdwfl: Support automatic gzip/bzip2 decompression of ELF files.
Version 0.138:
Install <elfutils/version.h> header file for applications to use in source
version compatibility checks.
libebl: backend fixes for i386 TLS relocs; backend support for NT_386_IOPERM
libcpu: disassembler fixes
libdwfl: bug fixes
libelf: bug fixes
nm: bug fixes for handling corrupt input files
Version 0.137:
Minor fixes for unreleased 0.136 release.
Version 0.136:
libdwfl: bug fixes; new "segment" interfaces;
all the libdwfl-based tools now support --core=COREFILE option
Version 0.135:
libdwfl: bug fixes
strip: changed handling of ET_REL files wrt symbol tables and relocs
Version 0.134:
elflint: backend improvements for sparc, alpha
libdwfl, libelf: bug fixes
Version 0.133:
readelf, elflint, libebl: SHT_GNU_ATTRIBUTE section handling (readelf -A)
readelf: core note handling for NT_386_TLS, NT_PPC_SPE, Alpha NT_AUXV
libdwfl: bug fixes and optimization in relocation handling
elfcmp: bug fix for non-allocated section handling
ld: implement newer features of binutils linker.
Version 0.132:
libcpu: Implement x86 and x86-64 disassembler.
libasm: Add interface for disassembler.
all programs: add debugging of branch prediction.
libelf: new function elf_scnshndx.
Version 0.131:
libdw: DW_FORM_ref_addr support; dwarf_formref entry point now deprecated;
bug fixes for oddly-formatted DWARF
libdwfl: bug fixes in offline archive support, symbol table handling;
apply partial relocations for dwfl_module_address_section on ET_REL
libebl: powerpc backend support for Altivec registers
Version 0.130:
readelf: -p option can take an argument like -x for one section,
or no argument (as before) for all SHF_STRINGS sections;
new option --archive-index (or -c);
improved -n output for core files, on many machines
libelf: new function elf_getdata_rawchunk, replaces gelf_rawchunk;
new functions gelf_getnote, gelf_getauxv, gelf_update_auxv
readelf, elflint: handle SHT_NOTE sections without requiring phdrs
elflint: stricter checks on debug sections
libdwfl: new functions dwfl_build_id_find_elf, dwfl_build_id_find_debuginfo,
dwfl_module_build_id, dwfl_module_report_build_id;
support dynamic symbol tables found via phdrs;
dwfl_standard_find_debuginfo now uses build IDs when available
unstrip: new option --list (or -n)
libebl: backend improvements for sparc, alpha, powerpc
Version 0.129:
readelf: new options --hex-dump (or -x), --strings (or -p)
addr2line: new option --symbols (or -S)
Version 0.128:
new program: unstrip
elfcmp: new option --hash-inexact
Version 0.127:
libdw: new function dwarf_getsrcdirs
libdwfl: new functions dwfl_module_addrsym, dwfl_report_begin_add,
dwfl_module_address_section
Version 0.126:
new program: ar
Version 0.125:
elflint: Compare DT_GNU_HASH tests.
move archives into -static RPMs
libelf, elflint: better support for core file handling
Version 0.124:
libebl: sparc backend support for return value location
libebl, libdwfl: backend register name support extended with more info
libelf, libdw: bug fixes for unaligned accesses on machines that care
readelf, elflint: trivial bugs fixed
Version 0.123:
libebl: Backend build fixes, thanks to Stepan Kasal.
libebl: ia64 backend support for register names, return value location
libdwfl: Handle truncated linux kernel module section names.
libdwfl: Look for linux kernel "vmlinux" files with ".debug" suffix.
elflint: Fix checks to permit --hash-style=gnu format.
Version 0.122:
libebl: add function to test for relative relocation
elflint: fix and extend DT_RELCOUNT/DT_RELACOUNT checks
elflint, readelf: add support for DT_GNU_HASH
libelf: add elf_gnu_hash
elflint, readelf: add support for 64-bit SysV-style hash tables
libdwfl: new functions dwfl_module_getsymtab, dwfl_module_getsym.
Version 0.121:
libelf: bug fixes for rewriting existing files when using mmap.
make all installed headers usable in C++ code.
readelf: better output format.
elflint: fix tests of dynamic section content.
ld: Implement --as-needed, --execstack, PT_GNU_STACK. Many small patches.
libdw, libdwfl: handle files without aranges info.
Version 0.120:
Bug fixes.
dwarf.h updated for DWARF 3.0 final specification.
libdwfl: New function dwfl_version.
The license is now GPL for most files. The libelf, libebl, libdw,
and libdwfl libraries have additional exceptions. Add reference to
OIN.
Version 0.119:
bug fixes
Version 0.118:
elflint: more tests.
libdwfl: New function dwfl_module_register_names.
libebl: New backend hook for register names.
Version 0.117: