3 debuginfod: Support -C option for connection thread pooling.
5 debuginfod-client: Negative cache file are now zero sized instead of
8 addr2line: The -A, --absolute option, which shows file names including
9 the full compilation directory is now the default. To get the
10 old behavior use the new option --relative.
12 readelf, elflint: Recognize FDO Packaging Metadata ELF notes
14 libdw, debuginfo-client: Load libcurl lazily only when files need to
15 be fetched remotely. libcurl is now never
16 loaded when DEBUGINFOD_URLS is unset. And when
17 DEBUGINFOD_URLS is set, libcurl is only loaded
18 when the debuginfod_begin function is called.
22 debuginfod-client: Default $DEBUGINFOD_URLS is computed from drop-in files
23 /etc/debuginfod/*.urls rather than hardcoded into the
24 /etc/profile.d/debuginfod* scripts.
25 Add $DEBUGINFOD_MAXSIZE and $DEBUGINFOD_MAXTIME settings
26 for skipping large/slow transfers.
27 Add $DEBUGINFOD_RETRY for retrying aborted lookups.
29 debuginfod: Supply extra HTTP response headers, describing archive/file
30 names that satisfy the requested buildid content.
31 Support -d :memory: option for in-memory databases.
32 Protect against loops in federated server configurations.
33 Add -r option to use -I/-X regexes for grooming stale files.
34 Protect against wasted CPU from duplicate concurrent requests.
35 Limit the duration of groom ops roughly to rescan (-t) times.
36 Add --passive mode for serving from read-only database.
37 Several other performance improvements & prometheus metrics.
39 libdw: Support for the NVIDIA Cuda line map extensions.
40 DW_LNE_NVIDIA_inlined_call and DW_LNE_NVIDIA_set_function_name
41 are defined in dwarf.h. New functions dwarf_linecontext and
42 dwarf_linefunctionname
44 translations: Update Japanese translation.
48 debuginfod-client: Simplify curl handle reuse so downloads which
49 return an error are retried.
51 elfcompress: Always exit with code 0 when the operation succeeds (even
52 when nothing was done). On error the exit code is now always 1.
56 debuginfod: Use libarchive's bsdtar as the .deb-family file unpacker.
58 debuginfod-client: Client caches negative results. If a query for a
59 file failed with 404, an empty 000 permission
60 file is created in the cache. This will prevent
61 requesting the same file for the next 10 minutes.
63 Client objects now carry long-lived curl handles
64 for outgoing connections. This makes it more
65 efficient for multiple sequential queries, because
66 the TCP connections and/or TLS state info are kept
67 around awhile, avoiding O(100ms) setup latencies.
69 libdw: handle DW_FORM_indirect when reading attributes
71 translations: Update Polish translation.
75 debuginfod: New thread-busy metric and more detailed error metrics.
76 New --fdcache-mintmp and tracking of filesystem freespace.
77 New increased webapi concurrency while grooming.
79 debuginfod-client: DEBUGINFOD_SONAME macro added to debuginfod.h which
80 can be used to dlopen the libdebuginfod.so library.
81 New function debuginfod_set_verbose_fd and
82 DEBUGINFOD_VERBOSE environment variable.
84 config: profile.sh and profile.csh won't export DEBUGINFOD_URLS unless
85 configured --enable-debuginfod-urls[=URLS]
87 elflint, readelf: Recognize SHF_GNU_RETAIN.
88 Handle SHT_X86_64_UNWIND as valid relocation target.
92 backends: Support for tilegx has been removed.
94 config: New /etc/profile.d files to provide default $DEBUGINFOD_URLS.
96 debuginfod: More efficient package traversal, tolerate various errors
97 during scanning, grooming progress is more visible and
98 interruptible, more prometheus metrics.
100 debuginfod-client: Now supports compressed (kernel) ELF images.
102 libdwfl: Add ZSTD compression support.
106 libelf: elf_update now compensates (fixes up) a bad sh_addralign for
107 SHF_COMPRESSED sections.
109 libdebuginfod: configure now takes --enable-libdebuginfod=dummy or
110 --disable-libdebuginfod for bootstrapping.
111 DEBUGINFOD_URLS now accepts "scheme-free" urls
112 (guessing at what the user meant, either http:// or file://)
114 readelf, elflint: Handle aarch64 bti, pac bits in dynamic table and gnu
117 libdw, readelf: Recognize DW_CFA_AARCH64_negate_ra_state. Allows unwinding
118 on arm64 for code that is compiled for PAC (Pointer
119 Authentication Code) as long as it isn't enabled.
123 elflint: Allow SHF_EXCLUDE as generic section flag when --gnu is given.
125 libdw, readelf: Handle GCC LTO .gnu.debuglto_ prefix.
127 libdw: Use correct CU to resolve file names in dwarf_decl_file.
129 libdwfl: Handle debugaltlink in dwfl_standard_find_debuginfo.
131 size: Also obey radix printing for bsd format.
133 nm: Explicitly print weak 'V' or 'T' and common 'C' symbols.
137 debuginfod-client: When DEBUGINFOD_PROGRESS is set and the program doesn't
138 install its own debuginfod_progressfn_t show download
140 DEBUGINFOD_TIMEOUT is now defined as seconds to get at
141 least 100K, defaults to 90 seconds.
142 Default to $XDG_CACHE_HOME/debuginfod_client.
143 New functions debuginfod_set_user_data,
144 debuginfod_get_user_data, debuginfod_get_url and
145 debuginfod_add_http_header.
146 Support for file:// URLs.
148 debuginfod: Uses libarchive directly for reading rpm archives.
149 Support for indexing .deb/.ddeb archives through dpkg-deb
151 Generic archive support through -Z EXT[=CMD]. Which can be
152 used for example for arch-linux pacman files by using
153 -Z '.tar.zst=zstdcat'.
154 Better logging using User-Agent and X-Forwarded-For headers.
155 More prometheus metrics.
156 Support for eliding dots or extraneous slashes in path names.
158 debuginfod-find: Accept /path/names in place of buildid hex.
160 libelf: Handle PN_XNUM in elf_getphdrnum before shdr 0 is cached
161 Ensure zlib resource cleanup on failure.
163 libdwfl: dwfl_linux_kernel_find_elf and dwfl_linux_kernel_report_offline
164 now find and handle a compressed vmlinuz image.
166 readelf, elflint: Handle PT_GNU_PROPERTY.
168 translations: Updated Ukrainian translation.
172 debuginfod: New server, client tool and library to index and fetch
173 ELF/DWARF files addressed by build-id through HTTP.
175 doc: There are now some manual pages for functions and tools.
177 backends: The libebl libraries are no longer dynamically loaded through
178 dlopen, but are now compiled into libdw.so directly.
180 readelf: -n, --notes now takes an optional "SECTION" argument.
181 -p and -x now also handle section numbers.
182 New option --dyn-sym to show just the dynamic symbol table.
184 libcpu: Add RISC-V disassembler.
186 libdw: Abbrevs and DIEs can now be read concurrently by multiple
187 threads through the same Dwarf handle.
189 libdwfl: Will try to use debuginfod when installed as fallback to
190 retrieve ELF and DWARF debug data files by build-id.
194 elfclassify: New tool to analyze ELF objects.
196 readelf: Print DW_AT_data_member_location as decimal offset.
197 Decode DW_AT_discr_list block attributes.
199 libdw: Add DW_AT_GNU_numerator, DW_AT_GNU_denominator and DW_AT_GNU_bias.
201 libdwelf: Add dwelf_elf_e_machine_string.
202 dwelf_elf_begin now only returns NULL when there is an error
203 reading or decompressing a file. If the file is not an ELF file
204 an ELF handle of type ELF_K_NONE is returned.
206 backends: Add support for C-SKY.
210 build: Add new --enable-install-elfh option.
211 Do NOT use this for system installs (it overrides glibc elf.h).
213 backends: riscv improved core file and return value location support.
215 Fixes CVE-2019-7146, CVE-2019-7148, CVE-2019-7149, CVE-2019-7150,
216 CVE-2019-7664, CVE-2019-7665
220 readelf: Handle multiple .debug_macro sections.
221 Recognize and parse GNU Property notes, NT_VERSION notes
222 and GNU Build Attribute ELF Notes.
224 strip: Handle SHT_GROUP correctly.
225 Add strip --reloc-debug-sections-only option.
226 Handle relocations against GNU compressed sections.
228 libdwelf: New function dwelf_elf_begin.
230 libcpu: Recognize bpf jump variants BPF_JLT, BPF_JLE, BPF_JSLT and BPF_JSLE.
232 backends: RISCV handles ADD/SUB relocations. Handle SHT_X86_64_UNWIND.
234 Fixes CVE-2018-18310, CVE-2018-18520 and CVE-2018-18521.
238 libelf, libdw and all tools now handle extended shnum and shstrndx correctly.
240 elfcompress: Don't rewrite input file if no section data needs updating.
241 Try harder to keep same file mode bits (suid) on rewrite.
243 strip: Handle mixed (out of order) allocated/non-allocated sections.
245 unstrip: Handle SHT_GROUP sections.
247 backends: RISCV and M68K now have backend implementations to generate CFI based
250 Fixes CVE-2018-16062, CVE-2018-16402 and CVE-2018-16403.
254 More fixes for crashes and hangs found by afl-fuzz. In particular various
255 functions now detect and break infinite loops caused by bad DIE tree cycles.
257 readelf: Will now lookup the size and signedness of constant value types
258 to display them correctly (and not just how they were encoded).
260 libdw: New function dwarf_next_lines to read CU-less .debug_line data.
261 dwarf_begin_elf now accepts ELF files containing just .debug_line
262 or .debug_frame sections (which can be read without needing a DIE
263 tree from the .debug_info section).
264 Removed dwarf_getscn_info, which was never implemented.
266 backends: Handle BPF simple relocations.
267 The RISCV backends now handles ABI specific CFI and knows about
268 RISCV register types and names.
272 No functional changes compared to 0.171.
274 Various bug fixes in libdw and eu-readelf dealing with bad DWARF5 data.
275 Thanks to running the afl fuzzer on eu-readelf and various testcases.
277 eu-readelf -N is ~15% faster.
281 DWARF5 and split dwarf, including GNU DebugFission, are supported now.
282 Data can be read from the new DWARF sections .debug_addr, .debug_line_str,
283 .debug_loclists, .debug_str_offsets and .debug_rnglists. Plus the new
284 DWARF5 and GNU DebugFission encodings of the existing .debug sections.
285 Also in split DWARF .dwo (DWARF object) files. This support is mostly
286 handled by existing functions (dwarf_getlocation*, dwarf_getsrclines,
287 dwarf_ranges, dwarf_form*, etc.) now returning the data from the new
288 sections and data formats. But some new functions have been added
289 to more easily get information about skeleton and split compile units
290 (dwarf_get_units and dwarf_cu_info), handle new attribute data
291 (dwarf_getabbrevattr_data) and to keep references to Dwarf_Dies
292 that might come from different sections or files (dwarf_die_addr_die).
294 Not yet supported are .dwp (Dwarf Package) and .sup (Dwarf Supplementary)
295 files, the .debug_names index, the .debug_cu_index and .debug_tu_index
296 sections. Only a single .debug_info (and .debug_types) section are
299 readelf: Handle all new DWARF5 sections.
300 --debug-dump=info+ will show split unit DIEs when found.
301 --dwarf-skeleton can be used when inspecting a .dwo file.
302 Recognizes GNU locviews with --debug-dump=loc.
304 libdw: New functions dwarf_die_addr_die, dwarf_get_units,
305 dwarf_getabbrevattr_data and dwarf_cu_info.
306 libdw will now try to resolve the alt file on first use of
307 an alt attribute FORM when not set yet with dwarf_set_alt.
308 dwarf_aggregate_size() now works with multi-dimensional arrays.
310 libdwfl: Use process_vm_readv when available instead of ptrace.
312 backends: Add a RISC-V backend.
314 There were various improvements to build on Windows.
315 The sha1 and md5 implementations have been removed, they weren't used.
319 libdw: Added new DWARF5 attribute, tag, character encoding, language code,
320 calling convention, defaulted member function and macro constants
322 New functions dwarf_default_lower_bound and dwarf_line_file.
323 dwarf_peel_type now handles DWARF5 immutable, packed and shared tags.
324 dwarf_getmacros now handles DWARF5 .debug_macro sections.
326 strip: Add -R, --remove-section=SECTION and --keep-section=SECTION.
328 backends: The bpf disassembler is now always build on all platforms.
332 backends: Add support for EM_PPC64 GNU_ATTRIBUTES.
333 Frame pointer unwinding fallback support for i386, x86_64, aarch64.
335 translations: Update Polish translation.
339 http://elfutils.org/ is now hosted at http://sourceware.org/elfutils/
341 libelf: gelf_newehdr and gelf_newehdr now return void *.
343 libdw: dwarf.h corrected the DW_LANG_PLI constant name (was DW_LANG_PL1).
345 readelf: Add optional --symbols[=SECTION] argument to select section name.
349 libasm: Add eBPF disassembler for EM_BPF files.
351 backends: Add m68k and BPF backends.
355 dwelf: Add ELF/DWARF string table creation functions. dwelf_strtab_init,
356 dwelf_strtab_add, dwelf_strtab_add_len, dwelf_strtab_finalize,
357 dwelf_strent_off, dwelf_strent_str and dwelf_strtab_free.
361 config: The default program prefix for the installed tools is now eu-.
362 Use configure --program-prefix="" to not use a program prefix.
366 elfcompress: New utility to compress or decompress ELF sections.
368 readelf: Add -z,--decompress option.
370 libelf: Add elf_compress, elf_compress_gnu, elf32_getchdr, elf64_getchdr
373 libdwelf: New function dwelf_scn_gnu_compressed_size.
375 config: Add libelf and libdw pkg-config files.
377 backends: sparc support for core and live backtraces.
379 translations: Updated Polish translation.
383 strip, unstrip: Handle ELF files with merged strtab/shstrtab tables.
384 Handle missing SHF_INFO_LINK section flags.
386 libelf: Use int64_t for offsets in libelf.h instead of loff_t.
388 libdw: dwarf.h Add preliminary DWARF5 DW_LANG_Haskell.
390 libdwfl: dwfl_standard_find_debuginfo now searches any subdir of the binary
391 path under the debuginfo root when the separate debug file couldn't
392 be found by build-id.
393 dwfl_linux_proc_attach can now be called before any Dwfl_Modules
396 backends: Better sparc and sparc64 support.
398 translations: Updated Ukrainian translation.
400 Provide default-yama-scope subpackage.
404 Bug fixes only, no new features.
408 libdw: Install new header elfutils/known-dwarf.h.
409 dwarf.h Add preliminary DWARF5 constants DW_TAG_atomic_type,
410 DW_LANG_Fortran03, DW_LANG_Fortran08. dwarf_peel_type now also
411 handles DW_TAG_atomic_type.
413 addr2line: Input addresses are now always interpreted as hexadecimal
414 numbers, never as octal or decimal numbers.
415 New option -a, --addresses to print address before each entry.
416 New option -C, --demangle to show demangled symbols.
417 New option --pretty-print to print all information on one line.
419 ar: CVE-2014-9447 Directory traversal vulnerability in ar extraction.
421 backends: x32 support.
425 libdw: New function dwarf_peel_type. dwarf_aggregate_size now uses
426 dwarf_peel_type to also provide the sizes of qualified types.
427 dwarf_getmacros will now serve either of .debug_macro and
428 .debug_macinfo transparently. New interfaces
429 dwarf_getmacros_off, dwarf_macro_getsrcfiles,
430 dwarf_macro_getparamcnt, and dwarf_macro_param are available
431 for more generalized inspection of macros and their parameters.
432 dwarf.h: Add DW_AT_GNU_deleted, DW_AT_noreturn, DW_LANG_C11,
433 DW_LANG_C_plus_plus_11 and DW_LANG_C_plus_plus_14.
437 libdw: New functions dwarf_cu_getdwarf, dwarf_cu_die.
438 dwarf.h remove non-existing DW_TAG_mutable_type.
440 libdwfl: Handle LZMA .ko.xz compressed kernel modules.
442 unstrip: New option -F, --force to combining files even if some ELF headers
445 backends: Handle ARM THUMB functions. Add support for ppc64le ELFv2 abi.
449 stack: New option -d, --debugname to lookup DWARF debuginfo name for frame.
450 New option -i, --inlines to show inlined frames using DWARF debuginfo.
452 libdwelf: New libdwelf.h header for libdw.so DWARF ELF Low-level Functions.
453 New function dwelf_elf_gnu_debuglink, dwelf_dwarf_gnu_debugaltlink,
454 and dwelf_elf_gnu_build_id.
456 libdw: Support for DWZ multifile forms DW_FORM_GNU_ref_alt and
457 DW_FORM_GNU_strp_alt is now enabled by default and no longer
458 experimental. Added new functions dwarf_getalt and dwarf_setalt
459 to get or set the alternative debug file used for the alt FORMs.
460 The dwfl_linux_proc_find_elf callback will now find ELF from
461 process memory for (deleted) files if the Dwfl has process state
464 libdwfl: The dwfl_build_id_find_debuginfo and dwfl_standard_find_debuginfo
465 functions will now try to resolve and set the alternative debug file.
467 backends: Add CFI unwinding for arm. Relies on .debug_frame.
468 Add arm process initial register state compatible mode to AARCH64.
469 Add aarch64 native and core unwind support.
471 other: All separate elfutils-robustify patches have been merged.
472 CVE-2014-0172 Check overflow before calling malloc to uncompress data.
476 libdwfl: dwfl_core_file_report has new parameter executable.
477 New functions dwfl_module_getsymtab_first_global,
478 dwfl_module_getsym_info and dwfl_module_addrinfo.
479 Added unwinder with type Dwfl_Thread_Callbacks, opaque types
480 Dwfl_Thread and Dwfl_Frame and functions dwfl_attach_state,
481 dwfl_pid, dwfl_thread_dwfl, dwfl_thread_tid, dwfl_frame_thread,
482 dwfl_thread_state_registers, dwfl_thread_state_register_pc,
483 dwfl_getthread_frames, dwfl_getthreads, dwfl_thread_getframes
486 addr2line: New option -x to show the section an address was found in.
488 stack: New utility that uses the new unwinder for processes and cores.
490 backends: Unwinder support for i386, x86_64, s390, s390x, ppc and ppc64.
495 libdw: Add new functions dwarf_getlocations, dwarf_getlocation_attr
496 and dwarf_getlocation_die.
498 readelf: Show contents of NT_SIGINFO and NT_FILE core notes.
500 addr2line: Support -i, --inlines output option.
502 backends: abi_cfi hook for arm, ppc and s390.
506 lib: New macro COMPAT_VERSION_NEWPROTO.
508 libdw: Handle GNU extension opcodes in dwarf_getlocation.
510 libdwfl: Fix STB_GLOBAL over STB_WEAK preference in dwfl_module_addrsym.
511 Add minisymtab support.
512 Add parameter add_p_vaddr to dwfl_report_elf.
513 Use DT_DEBUG library search first.
515 libebl: Handle new core note types in EBL.
517 backends: Interpret NT_ARM_VFP.
518 Implement core file registers parsing for s390/s390x.
520 readelf: Add --elf-section input option to inspect an embedded ELF file.
521 Add -U, --unresolved-address-offsets output control.
522 Add --debug-dump=decodedline support.
523 Accept version 8 .gdb_index section format.
524 Adjust output formatting width.
525 When highpc is in constant form print it also as address.
526 Display raw .debug_aranges. Use libdw only for decodedaranges.
528 elflint: Add __bss_start__ to the list of allowed symbols.
530 tests: Add configure --enable-valgrind option to run all tests under valgrind.
531 Enable automake parallel-tests for make check.
533 translations: Updated Polish translation.
535 Updates for Automake 1.13.
539 libelf: elf*_xlatetomd now works for cross-endian ELF note data.
540 elf_getshdr now works consistently on non-mmaped ELF files after
541 calling elf_cntl(ELF_C_FDREAD).
542 Implement support for ar archives with 64-bit symbol table.
544 libdw: dwarf.h corrected the DW_LANG_ObjC constant name (was DW_LANG_Objc).
545 Any existing sources using the old name will have to be updated.
546 Add DW_MACRO_GNU .debug_macro type encodings constants, DW_ATE_UTF
547 and DW_OP_GNU_parameter_ref to dwarf.h.
548 Experimental support for DWZ multifile forms DW_FORM_GNU_ref_alt
549 and DW_FORM_GNU_strp_alt. Disabled by default. Use configure
550 --enable-dwz to test it.
552 readelf: Add .debug_macro parsing support.
553 Add .gdb_index version 7 parsing support.
554 Recognize DW_OP_GNU_parameter_ref.
556 backends: Add support for Tilera TILE-Gx processor.
558 translations: Updated Ukrainian translation.
562 libelf: [g]elf[32|64]_offscn() do not match SHT_NOBITS sections at OFFSET.
564 libdw: dwarf_highpc function now handles DWARF 4 DW_AT_high_pc constant form.
565 Fix bug using dwarf_next_unit to iterate over .debug_types.
567 elflint: Now accepts gold linker produced executables.
569 The license is now GPLv2/LGPLv3+ for the libraries and GPLv3+ for stand-alone
570 programs. There is now also a formal CONTRIBUTING document describing how to
575 libdw: Support reading .zdebug_* DWARF sections compressed via zlib.
577 libdwfl: Speed up dwfl_module_addrsym.
579 nm: Support C++ demangling.
581 ar: Support D modifier for "deterministic output" with no uid/gid/mtime info.
582 The U modifier is the inverse.
583 elfutils can be configured with the --enable-deterministic-archives
584 option to make the D behavior the default when U is not specified.
586 ranlib: Support -D and -U flags with same meaning.
588 readelf: Improve output of -wline. Add support for printing SDT elf notes.
589 Add printing of .gdb_index section.
590 Support for typed DWARF stack, call_site and entry_value.
592 strip: Add --reloc-debug-sections option.
593 Improved SHT_GROUP sections handling.
597 Various build and warning nits fixed for newest GCC and Autoconf.
599 libdwfl: Yet another prelink-related fix for another regression.
600 Look for Linux kernel images in files named with compression suffixes.
602 elfcmp: New flag --ignore-build-id to ignore differing build ID bits.
603 New flag -l/--verbose to print all differences.
607 libdwfl: Fix for more prelink cases with separate debug file.
609 strip: New flag --strip-sections to remove section headers entirely.
613 libdw: Fix for handling huge .debug_aranges section.
615 libdwfl: Fix for handling prelinked DSO with separate debug file.
617 findtextrel: Fix diagnostics to work with usual section ordering.
619 libebl: i386 backend fix for multi-register integer return value location.
623 libdw: Decode new DW_OP_GNU_implicit_pointer operation;
624 new function dwarf_getlocation_implicit_pointer.
626 libdwfl: New function dwfl_dwarf_line.
628 addr2line: New flag -F/--flags to print more DWARF line information details.
630 strip: -g recognizes .gdb_index as a debugging section.
634 libdw: Accept DWARF 4 format: new functions dwarf_next_unit, dwarf_offdie_types.
635 New functions dwarf_lineisa, dwarf_linediscriminator, dwarf_lineop_index.
637 libdwfl: Fixes in core-file handling, support cores from PIEs.
638 When working from build IDs, don't open a named file that mismatches.
640 readelf: Handle DWARF 4 formats.
644 libdw: Fixes in CFI handling, best possible handling of bogus CFA ops.
646 libdwfl: Ignore R_*_NONE relocs, works around old (binutils) ld -r bugs.
650 libdwfl: New function dwfl_core_file_report.
654 Fix build with --disable-dependency-tracking.
656 Fix build with most recent glibc headers.
658 libelf: More robust to bogus section headers.
660 libdw: Fix CFI decoding.
662 libdwfl: Fix address bias returned by CFI accessors.
663 Fix core file module layout identification.
665 readelf: Fix CFI decoding.
669 libelf: New function elf_getphdrnum.
670 Now support using more than 65536 program headers in a file.
672 libdw: New function dwarf_aggregate_size for computing (constant) type
673 sizes, including array_type cases with nontrivial calculation.
675 readelf: Don't give errors for missing info under -a.
676 Handle Linux "VMCOREINFO" notes under -n.
680 libdw: Various convenience functions for individual attributes now use
681 dwarf_attr_integrate to look up indirect inherited attributes.
682 Location expression handling now supports DW_OP_implicit_value.
684 libdwfl: Support automatic decompression of files in XZ format,
685 and of Linux kernel images made with bzip2 or LZMA (as well as gzip).
689 libelf: Add elf_getshdrnum alias for elf_getshnum and elf_getshdrstrndx alias
690 for elf_getshstrndx and deprecate original names. Sun screwed up
691 their implementation and asked for a solution.
693 libebl: Add support for STB_GNU_UNIQUE.
695 elflint: Add support for STB_GNU_UNIQUE.
697 readelf: Add -N option, speeds up DWARF printing without address->name lookups.
699 libdw: Add support for decoding DWARF CFI into location description form.
700 Handle some new DWARF 3 expression operations previously omitted.
701 Basic handling of some new encodings slated for DWARF 4.
705 libebl: sparc backend fixes;
706 some more arm backend support
708 libdwfl: fix dwfl_module_build_id for prelinked DSO case;
709 fixes in core file support;
710 dwfl_module_getsym interface improved for non-address symbols
712 strip: fix infinite loop on strange inputs with -f
714 addr2line: take -j/--section=NAME option for binutils compatibility
715 (same effect as '(NAME)0x123' syntax already supported)
719 libelf: Fix regression in creation of section header
721 libdwfl: Less strict behavior if DWARF reader is just used to display data
725 libcpu: Add Intel SSE4 disassembler support
727 readelf: Implement call frame information and exception handling dumping.
728 Add -e option. Enable it implicitly for -a.
730 elflint: Check PT_GNU_EH_FRAME program header entry.
732 libdwfl: Support automatic gzip/bzip2 decompression of ELF files.
736 Install <elfutils/version.h> header file for applications to use in source
737 version compatibility checks.
739 libebl: backend fixes for i386 TLS relocs; backend support for NT_386_IOPERM
741 libcpu: disassembler fixes
747 nm: bug fixes for handling corrupt input files
751 Minor fixes for unreleased 0.136 release.
755 libdwfl: bug fixes; new "segment" interfaces;
756 all the libdwfl-based tools now support --core=COREFILE option
762 strip: changed handling of ET_REL files wrt symbol tables and relocs
766 elflint: backend improvements for sparc, alpha
768 libdwfl, libelf: bug fixes
772 readelf, elflint, libebl: SHT_GNU_ATTRIBUTE section handling (readelf -A)
774 readelf: core note handling for NT_386_TLS, NT_PPC_SPE, Alpha NT_AUXV
776 libdwfl: bug fixes and optimization in relocation handling
778 elfcmp: bug fix for non-allocated section handling
780 ld: implement newer features of binutils linker.
784 libcpu: Implement x86 and x86-64 disassembler.
785 libasm: Add interface for disassembler.
787 all programs: add debugging of branch prediction.
789 libelf: new function elf_scnshndx.
793 libdw: DW_FORM_ref_addr support; dwarf_formref entry point now deprecated;
794 bug fixes for oddly-formatted DWARF
796 libdwfl: bug fixes in offline archive support, symbol table handling;
797 apply partial relocations for dwfl_module_address_section on ET_REL
799 libebl: powerpc backend support for Altivec registers
803 readelf: -p option can take an argument like -x for one section,
804 or no argument (as before) for all SHF_STRINGS sections;
805 new option --archive-index (or -c);
806 improved -n output for core files, on many machines
808 libelf: new function elf_getdata_rawchunk, replaces gelf_rawchunk;
809 new functions gelf_getnote, gelf_getauxv, gelf_update_auxv
811 readelf, elflint: handle SHT_NOTE sections without requiring phdrs
813 elflint: stricter checks on debug sections
815 libdwfl: new functions dwfl_build_id_find_elf, dwfl_build_id_find_debuginfo,
816 dwfl_module_build_id, dwfl_module_report_build_id;
817 support dynamic symbol tables found via phdrs;
818 dwfl_standard_find_debuginfo now uses build IDs when available
820 unstrip: new option --list (or -n)
822 libebl: backend improvements for sparc, alpha, powerpc
826 readelf: new options --hex-dump (or -x), --strings (or -p)
828 addr2line: new option --symbols (or -S)
834 elfcmp: new option --hash-inexact
838 libdw: new function dwarf_getsrcdirs
840 libdwfl: new functions dwfl_module_addrsym, dwfl_report_begin_add,
841 dwfl_module_address_section
849 elflint: Compare DT_GNU_HASH tests.
851 move archives into -static RPMs
853 libelf, elflint: better support for core file handling
857 libebl: sparc backend support for return value location
859 libebl, libdwfl: backend register name support extended with more info
861 libelf, libdw: bug fixes for unaligned accesses on machines that care
863 readelf, elflint: trivial bugs fixed
867 libebl: Backend build fixes, thanks to Stepan Kasal.
869 libebl: ia64 backend support for register names, return value location
871 libdwfl: Handle truncated linux kernel module section names.
873 libdwfl: Look for linux kernel "vmlinux" files with ".debug" suffix.
875 elflint: Fix checks to permit --hash-style=gnu format.
879 libebl: add function to test for relative relocation
881 elflint: fix and extend DT_RELCOUNT/DT_RELACOUNT checks
883 elflint, readelf: add support for DT_GNU_HASH
884 libelf: add elf_gnu_hash
886 elflint, readelf: add support for 64-bit SysV-style hash tables
888 libdwfl: new functions dwfl_module_getsymtab, dwfl_module_getsym.
892 libelf: bug fixes for rewriting existing files when using mmap.
894 make all installed headers usable in C++ code.
896 readelf: better output format.
898 elflint: fix tests of dynamic section content.
900 ld: Implement --as-needed, --execstack, PT_GNU_STACK. Many small patches.
902 libdw, libdwfl: handle files without aranges info.
908 dwarf.h updated for DWARF 3.0 final specification.
910 libdwfl: New function dwfl_version.
912 The license is now GPL for most files. The libelf, libebl, libdw,
913 and libdwfl libraries have additional exceptions. Add reference to
924 libdwfl: New function dwfl_module_register_names.
926 libebl: New backend hook for register names.
930 libdwfl: New function dwfl_module_return_value_location.
932 libebl: Backend improvements for several CPUs.
936 libdw: New functions dwarf_ranges, dwarf_entrypc, dwarf_diecu,
937 dwarf_entry_breakpoints. Removed Dwarf_Func type and functions
938 dwarf_func_name, dwarf_func_lowpc, dwarf_func_highpc,
939 dwarf_func_entrypc, dwarf_func_die; dwarf_getfuncs callback now uses
940 Dwarf_Die, and dwarf_func_file, dwarf_func_line, dwarf_func_col
941 replaced by dwarf_decl_file, dwarf_decl_line, dwarf_decl_column;
942 dwarf_func_inline, dwarf_func_inline_instances now take Dwarf_Die.
943 Type Dwarf_Loc renamed to Dwarf_Op; dwarf_getloclist,
944 dwarf_addrloclists renamed dwarf_getlocation, dwarf_getlocation_addr.
948 libelf: speed-ups of non-mmap reading.
950 strings: New program.
952 Implement --enable-gcov option for configure.
954 libdw: New function dwarf_getscopes_die.
958 libelf: new function elf_getaroff
960 libdw: Added dwarf_func_die, dwarf_func_inline, dwarf_func_inline_instances.
962 libdwfl: New functions dwfl_report_offline, dwfl_offline_section_address,
963 dwfl_linux_kernel_report_offline.
969 elflint: relax a bit. Allow version definitions for defined symbols against
970 DSO versions also for symbols in nobits sections. Allow .rodata section
971 to have STRINGS and MERGE flag set.
973 strip: add some more compatibility with binutils.
977 elfcmp: some more relaxation.
979 elflint: many more tests, especially regarding to symbol versioning.
981 libelf: Add elfXX_offscn and gelf_offscn.
983 libasm: asm_begin interface changes.
985 libebl: Add three new interfaces to directly access machine, class, and
986 data encoding information.
988 objdump: New program. Just the beginning.
992 libdw: now contains all of libdwfl. The latter is not installed anymore.
994 elfcmp: little usability tweak, name and index of differing section is printed.
998 libelf: fix a number of problems with elf_update
1000 elfcmp: fix a few bugs. Compare gaps.
1002 Fix a few PLT problems and mudflap build issues.
1004 libebl: Don't expose Ebl structure definition in libebl.h. It's now private.
1008 libebl: Check for matching modules.
1010 elflint: Check that copy relocations only happen for OBJECT or NOTYPE symbols.
1012 elfcmp: New program.
1014 libdwfl: New library.
1018 strip: fix bug introduced in last change
1020 libdw: records returned by dwarf_getsrclines are now sorted by address
1024 readelf: improve DWARF output format
1026 strip: support Linux kernel modules
1030 libdw: Updated dwarf.h from DWARF3 spec
1031 libdw: add new functions dwarf_func_entrypc, dwarf_func_file, dwarf_func_line,
1032 dwarf_func_col, dwarf_getsrc_file
1036 addr2line: New program
1038 libdw: add new functions: dwarf_addrdie, dwarf_macro_*, dwarf_getfuncs,
1041 findtextrel: use dwarf_addrdie
1045 findtextrel: New program.
1049 libdw: Fix using libdw.h with gcc < 4 and C++ code. Compiler bug.
1053 More Makefile and spec file cleanups.
1057 Remove most gettext autoconf handling.
1061 Fix resulting problems. One actual bug found and fixed this way
1065 libebl: Fix x86-64 relocations.
1067 Add -Wunused -Wextra warnings.
1069 Some cleanups resulting from those additional warnings.
1071 Lots of Makefile cleanup.
1075 libelf: add gelf_checksum prototype to <libelf.h>
1077 libelf: fix elf*_checksum handling of NOBITS sections
1079 Finish mudflap support.
1081 Fix three bugs found by mudflap.
1083 ld: add as_needed support
1087 readelf: in section to segment mapping, indicate read-only sections.
1089 elflint: more relaxation for GNU ld
1093 Fix compiling with gcc 4.0.
1094 Some tests called elflint without appropriate LD_LIBRARY_PATH.
1098 Fix support for platforms with lib64.
1102 libebl: add ppc and ppc64 support
1104 readelf: fix minimal memory leak.
1106 Add support to compile with mudflap.
1108 Modernize configure.ac. Move scripts in config subdir.
1110 Modernize *-po directory infrastructure.
1112 libelf: Add gelf_getlib and gelf_update_lib
1114 readelf: print liblist sections
1118 Fix some minimal build problems.
1122 ibdw: tons of new functionality and bug fixes. Several interface changes.
1124 readelf: use libdw now.
1126 libdwarf: removed completely.
1130 configuration changes.
1134 libdw: fix memory handling. Implement source line handling.
1135 nm: use libdw instead of libdwarf.
1136 libelf: change to GPL from OSL1 for now.
1140 libebl: Recognize a few more section types and dynamic tags and return
1141 appropriate strings.
1145 strip: fix overwriting of symbol table in input file.
1149 libebl: Add some ia64 bits.
1153 Bug fixes for big endian and some 64-bit machines.
1157 strip: fix handling of Alpha and s390x which use incorrect hash bucket sizes.
1159 ld: tons of changes, moving towards usability.
1163 strip: update section group symbol index if the associated symbol table changed
1165 libelf: fix two problems with generating output not via mmap
1167 elflint: add probably 10-15 more tests
1168 libebl: add support for some of the new tests
1170 ld: gazillion changes
1174 elflint: deal with .rel.dyn section. Fix a problem with rela platforms.
1175 Handle PT_GNU_STACK. Change to write messages to stdout.
1177 readelf: fix a problem with version information in the symbol table output.
1179 strip: update all version symbol table entries
1185 strip: last changed caused problems when the symbol table is before the
1186 relocation section. Fixed. This fix also improved the asymptotic
1187 behavior if many symbol table sections are present.
1191 Run strip tests with the correct libelf and libebl.
1193 libelf: fix bug in verneed byte order changing code.
1197 strip: Remove unused symbol table entries. This might require updating
1198 various other sections.
1202 Fix some libelf problems with ET_REL files.
1206 More warning changes, mainly by jbj.
1208 libdw: yet more new code. dwarf_child and dwarf_sibling should now actually
1213 libdw: 10+ new functions. get-pubnames2 works now fully. Almost all the
1214 code needed for nm is in place.
1218 cleanups to compile cleanly with gcc 3.3 and -Werror.
1220 libdw: some new code.
1224 libebl: Fix last patch to recognize relocation sections. We must not
1229 libebl: .debug_ranges is a DWARF 3 debug section
1230 libebl: recognize relocation sections for debug section
1231 Patches by Jakub Jelinek.
1235 Cleanups and more SPARC support by Tom Callaway <tcallaway@redhat.com>.
1239 64-bit cleanups for the programs.
1243 libelf: and yet more fun with endian transformation at output time.
1247 libelf: more fun with endian transformation at output time. Add test for it.
1251 libelf: Two little bugs left from previous patch to handle section output
1254 libelf: add unlikely in some more places.
1258 libelf: fix output routines to handle case where section indices and
1259 ordre in the output file don't match correctly. Patch by Jakub.
1261 elflint: fix test of note section content for 64-bit platforms and files
1262 with different byte order.
1266 libebl: Fix SH_ENTSIZE_HASH definition (patch by Jakub)
1270 libelf: correct mistake in error string handling.
1272 libelf: Implement ELF_F_PERMISSIVE.
1273 strip: Implement --permissive option.
1277 strip: Implement -g option.
1279 libelf: Handle broken hash table entry sizes.
1281 libebl: New function ebl_debugscn_p. Use it where appropriate.
1285 libelf: Use correct file size for NOBITS section with ELF_F_LAYOUT set
1289 libelf: Make error handling more robust.
1290 libelf: Use TLS in error handler if configured with --enable-tls
1292 tests: input files are now distributed, not uuencoded in the shell scripts
1294 libdw: implement error handling, dwarf_get_pubnames
1298 Build (incomplete) libdw.
1310 libebl: Handle .gnu.warning.* sections correctly.
1312 size: Implement -t option.
1314 libebl: Add IA-64 support.
1315 libebl: Update SH relocations.
1316 libebl: Add Alpha support.
1317 libebl: Add Arm support.
1318 libebl: Add support for all currently known architecture to the loader.
1322 nm: Implement -S option. Correct portable output format. Implement -s option.
1324 libelf: Take offset of archive into account in elf_rand.
1328 strip: fix handling of ET_REL files.
1329 Add tests for strip.
1333 strip: respect layout of input file
1337 strip: handle files with large number of sections.
1341 libelf: quite a few bug fixes by Alex Larsson.
1343 strip: implement -f option to place stripped sections into a separate
1344 file. By Alex Larsson.
1348 strip: don't let STT_SECTION symbols keeps sections from being removed
1350 elflint: local symbols are allowed in .dynsym
1351 elflint: special case .rel.dyn a bit
1355 elflint: check types and flags of special sections defined in gABI
1357 libebl: add x86-64 support
1361 Start improvement of debug info handling in nm.
1363 libasm: implement asm_adduleb128 and asm_addsleb128 and a test for them
1367 Fix build on 64-bit platforms.
1371 nm: print file/line number also for local symbols
1373 use versions scripts not libtool's useless -export-symbols option
1377 Update to autoconf 2.54 and automake 1.7.
1379 elflint: check note sections
1381 libdwarf: a number of bug fixes
1383 readelf: print .debug_info section content
1385 dwarf.h: Update from draft 7
1391 libelf: new function to read parts of the ELF file
1393 libebl: support for note section handling
1395 readelf: dump note sections
1399 libelf: fix little new section-handling related bugs in elf_getshstrndx
1402 elflint: tests for mandatory content of dynamic section
1404 libasm: better handling of absolute symbols
1408 libasm: rewrite to store Elf_Scn* instead of indices
1410 nm: finish many-section support
1412 nm: use debug in to print file/line info in sysv format
1414 libdwarf: fix a few bugs in DIE handling
1418 libelf: major rewrite to keep Elf_Scn references valid until elf_end
1422 libasm: Add support for bss, ABS, and COM sections.
1424 libebl: ebl_section_name takes now two index arguments to distinguish
1425 between special sections and extended sections
1429 General: fix a few problem gcc 3.1 had with the code.
1431 libelf: implement {gelf,elf32,elf64}_checksum
1433 libelf: optimize DSO: fewer relocations, fewer PLTs
1437 ld: use correct section header string table index; write correct index
1439 add dependencies for *.sym files
1443 libelf: add elf_getshnum and elf_getshstrndx
1445 libebl: update section type name function
1447 elflint: tons of fixes wrt large number of sections. New tests in this area.
1448 Same amount of other bug fixes.
1450 size, strip, nm: better support for large number of sections. Including
1451 using correct section header string table
1453 libasm: correctly create data structures for large number of sections
1455 new tests asm-tst4 and asm-tst5 to check large number of sections
1457 libasm: implement section group generation
1459 elflint: more tests on section groups. Improve performance on existing
1464 ld: add undefined symbols to dynamic symbol table if --export-dynamic is
1467 ld: fix value of e_entry
1471 elflint: print section names in error messages
1473 elflint: mustn't warn about multiple DT_NULL
1475 ld: don't emit all symbols if --export-dynamic is not given
1477 ld: correct compute symbol address in output file (section index was off by 1)
1479 ld: generate correct version info in dynsym without --export-dynamic and
1484 Fix check of various e_*size entries in elflint.
1486 Handle text output in asm_newsym.
1488 Finish checks in asm-tst3.
1492 Update to autoconf 2.53, automake 1.6, gettext 0.11+.
1494 Introduce *.sym files to restrict export from DSOs.
1496 Use attribute_hidden and internal_function to optimize DSO code.
1498 Add TLS definitions in elf.h and handle them in readelf.
1500 Fix bug in verdef section generation in ld.
1502 Add initial libasm code.
1506 Implement better hash size optimization heuristic in ld. It uses a formula
1507 taking number of tests into account.
1509 Lots of small bug fixes.
1511 Improve readelf output format. Respect various sh_link/sh_info values.
1512 Correctly print versioning information for symbol tables.
1516 Implement preprocessing of linker script. Recognize -z combreloc.
1520 Implement -z ignore|record for ld.
1522 Implement creating of .gnu.version_r and .gnu.version sections. The
1523 .gnu.version does not yet contain correct info for defined and versioned
1524 symbols (means .gnu.version_d is not yet implemented).
1526 Implement gelf_update_* functions to create versioning data.
1530 Add DT_RUNPATH/DT_RPATH entries to dynamic section. Create .plt and
1531 .rel.plt sections (completely). Add support for all four PLT related
1532 dynamic section entries. Add callback function for PLT creation.
1534 More tests in elflint. Add support for very strict checking which for
1535 now flags level 2 (deprecated features) usage.
1539 Create dynamic symbol table, dynamic string table, and hash table to ld.
1541 Add hash table histogram support to readelf.
1545 more work on elflint
1547 ld now creates the dynamic section and references it. Start adding entries
1552 Start implementing elflint.
1556 Fix handling of NOBITS sections in elf_getdata.
1558 Start implementing generation of executables and DSOs in ld.
1559 Generation of program header mostly done. Address computation done.
1560 Extension of linker script syntax.
1564 Implement section group handling in readelf.
1568 Implement section groups. This involved a lot of code moving. The
1569 new code is entirely untested since gas/gcc are currently not able to
1570 create section groups. ld works fine on files without section groups.
1574 Fix problem with adding more section in elf_newscn. The section pointers
1575 for the data buffers wasn't adjusted.
1577 Fix elf_getdata with nonzero second parameter. Correctly handle creation
1578 of internal data buffer for machines without unaligned access.
1582 Start adding support to selectively add sections. Includes support for
1584 Add --gc-sections/--no-gc-sections options.
1585 Add general section merging support.
1587 Fix a bug in section group support in strip.
1589 Fix some potential problems with hash value in dynamic hash implementation.
1593 section merging works in ld.
1597 Actually create data structures from version map file and use it to hide
1600 Implement -s -s for ld.
1604 Improve relocation table output in readelf. Avoid some crashes.
1605 Finish many section handling in readelf.
1607 Finish: finish implementation of ld -r. At least some simple tests pass.
1611 Fix a number of errors in ELF_C_WRITE handling.
1613 Almost finished implementation of ld -r. The data sections are all copied.
1614 Handling of symbol tables is missing.
1618 Handle DSO and archive input files correctly if -r option is given.
1620 Gracefully deal with no phdr in new file in libelf.
1621 Fix various small error handling problems.
1622 Don't mmap file for output unless the command says so.
1624 Add code to create ELF section header table to ld finalize routines.
1628 Fix some problems with recursive handling of archives in libelf.
1630 Improve messages printed by nm.
1632 Add symbol binding name handling to libebl. Fix section name handling in
1635 readelf and nm use more libebl functions.
1637 Handle XINDEX correctly in nm and string.
1639 Add first machine ld backend library (i386).
1640 Use it. Recognize -r and --shared. Avoid using -lxxx parameters for -r.
1641 Create ELF header in output file. Change mode of output file according to
1642 output file type. Reorganize callback initialization in ld.
1646 Fix some memory leaks in libelf.
1650 Implement reading version script. Both inside linker scripts and via the
1651 --version-script command line parameter. Uses the same code.
1652 What remains to be done is to implement a data structure which allows
1653 efficient matching against the version names to decide which pattern
1656 Beginning of output generation and output writing functions.
1660 Finish implementation for DSO input file handling. Implement rpath, runpath,
1661 and LD_LIBRARY_PATH handling.
1665 make handling of e_shnum overflow in libelf standard conforming
1667 ld now actually can handle DSOs in linker scripts. Handling of DT_RUNPATH,
1668 DT_RPATH, -rpath, -rpath-link still remains to be implemented.
1670 fix handling of -L parameters. Make actual use of the default_paths element.
1672 make re-definition of symbols in and from DSO compatible with existing linker
1676 more work on assigning input sections to output sections.
1678 Add gelf_xlatetof and gelf_xlatetom which were accidentally left out.
1680 Fix memory handling of section headers.
1684 Add many-section support to ld. Add various new command line parameters.
1685 Allow pagesize to be specified in linker script or on the command line.
1686 Collect input sections in list for the output section according to the rules
1687 specified in the linker script.
1691 Fix some problems in the internal list handling which had the result
1692 that we didn't look for some of the unresolved symbols.
1694 Free some memory if we know we don't need it anymore.
1696 Optimize the list of unresolved symbols. Throw out symbols which are
1701 Got file reading correct now. The files are all read while parsing
1702 the parameters. No creating of data structures to describe the linker
1703 command line. The symbol table is built up while reading the files.
1704 DSOs are handled now. -( -) handling is optimized.
1708 Linker read linker scripts everywhere. Handles --whole-archive. Recognizes
1709 --dynamic and --static. Collects defined and undefined symbols. Recognizes
1712 libebl now defines functions to call the callbacks. Add generic name handling
1713 in these new functions. Remove the code from readelf and call the new
1718 Start of linker. Basic argument parsing, finding of input files,
1719 linker script reading.
1723 Implement dwarf_get_fde_n(), dwarf_get_abbrev(), dwarf_get_abbrev_tag(),
1724 dwarf_get_abbrev_code(), dwarf_get_abbrev_children_flag(),
1725 dwarf_get_abbrev_entry(), dwarf_get_fde_at_pc(), and tests for it.
1729 Implement dwarf_get_fde_list_eh(), dwarf_get_cie_of_fde(),
1730 dwarf_get_fde_range(), dwarf_get_cie_info(), dwarf_get_fde_instr_bytes(),
1735 Make handling of binaries in other byte order work and add tests for it.
1739 Implement dwarf_get_aranges(), dwarf_get_arange(), dwarf_get_cu_die_offset(),
1740 dwarf_get_arange_info(), and tests for them.
1744 Implement dwarf_get_global(), dwarf_globname(), dwarf_global_die_offset(),
1745 dwarf_global_cu_offset(), dwarf_global_name_offsets(), and tests for them
1749 Implemented dwarf_srclines(), dwarf_srcfiles(), dwarf_linebeginstatement(),
1750 dwarf_lineendsequence(), dwarf_lineno(), dwarf_lineaddr(), dwarf_lineoff(),
1751 dwarf_linesrc(), dwarf_lineblock(), dwarf_lineprologueend(),
1752 dwarf_lineepiloguebegin(), and tests for them.
1756 Implemented dwarf_loclist().
1760 Implemented dwarf_dieoffset(), dwarf_die_CU_offset(), dwarf_diename() and
1763 Implemented dwarf_attrlist(), dwarf_hasattr(), dwarf_attr(), dwarf_lowpc(),
1764 dwarf_highpc(), dwarf_bytesize(), dwarf_bitsize(), dwarf_bitoffset(),
1765 dwarf_srclang(), dwarf_arrayorder(), dwarf_hasform(), dwarf_whatform(),
1766 dwarf_whatattr(), dwarf_formref(), dwarf_global_formref(), dwarf_formaddr(),
1767 dwarf_formflag(), dwarf_formudata(), dwarf_formsdata(), dwarf_formblock,
1768 dwarf_formstring() and tests for them.
1772 Implemented dwarf_offdie()), dwarf_tag(), dwarf_dieoffset(),
1773 dwarf_die_CU_offset(), dwarf_diename() and tests for them.
1777 First libdwarf functions work.
1781 libelf and parts of libebl are done.