3 libdw: New function dwarf_aggregate_size for computing (constant) type
4 sizes, including array_type cases with nontrivial calculation.
6 readelf: Don't give errors for missing info under -a.
7 Handle Linux "VMCOREINFO" notes under -n.
11 libdw: Various convenience functions for individual attributes now use
12 dwarf_attr_integrate to look up indirect inherited attributes.
13 Location expression handling now supports DW_OP_implicit_value.
15 libdwfl: Support automatic decompression of files in XZ format,
16 and of Linux kernel images made with bzip2 or LZMA (as well as gzip).
20 libelf: Add elf_getshdrnum alias for elf_getshnum and elf_getshdrstrndx alias
21 for elf_getshstrndx and deprecate original names. Sun screwed up
22 their implementation and asked for a solution.
24 libebl: Add support for STB_GNU_UNIQUE.
26 elflint: Add support for STB_GNU_UNIQUE.
28 readelf: Add -N option, speeds up DWARF printing without address->name lookups.
30 libdw: Add support for decoding DWARF CFI into location description form.
31 Handle some new DWARF 3 expression operations previously omitted.
32 Basic handling of some new encodings slated for DWARF 4.
36 libebl: sparc backend fixes;
37 some more arm backend support
39 libdwfl: fix dwfl_module_build_id for prelinked DSO case;
40 fixes in core file support;
41 dwfl_module_getsym interface improved for non-address symbols
43 strip: fix infinite loop on strange inputs with -f
45 addr2line: take -j/--section=NAME option for binutils compatibility
46 (same effect as '(NAME)0x123' syntax already supported)
50 libelf: Fix regression in creation of section header
52 libdwfl: Less strict behavior if DWARF reader ist just used to display data
56 libcpu: Add Intel SSE4 disassembler support
58 readelf: Implement call frame information and exception handling dumping.
59 Add -e option. Enable it implicitly for -a.
61 elflint: Check PT_GNU_EH_FRAME program header entry.
63 libdwfl: Support automatic gzip/bzip2 decompression of ELF files.
67 Install <elfutils/version.h> header file for applications to use in source
68 version compatibility checks.
70 libebl: backend fixes for i386 TLS relocs; backend support for NT_386_IOPERM
72 libcpu: disassembler fixes
78 nm: bug fixes for handling corrupt input files
82 Minor fixes for unreleased 0.136 release.
86 libdwfl: bug fixes; new "segment" interfaces;
87 all the libdwfl-based tools now support --core=COREFILE option
93 strip: changed handling of ET_REL files wrt symbol tables and relocs
97 elflint: backend improvements for sparc, alpha
99 libdwfl, libelf: bug fixes
103 readelf, elflint, libebl: SHT_GNU_ATTRIBUTE section handling (readelf -A)
105 readelf: core note handling for NT_386_TLS, NT_PPC_SPE, Alpha NT_AUXV
107 libdwfl: bug fixes and optimization in relocation handling
109 elfcmp: bug fix for non-allocated section handling
111 ld: implement newer features of binutils linker.
115 libcpu: Implement x86 and x86-64 disassembler.
116 libasm: Add interface for disassembler.
118 all programs: add debugging of branch prediction.
120 libelf: new function elf_scnshndx.
124 libdw: DW_FORM_ref_addr support; dwarf_formref entry point now deprecated;
125 bug fixes for oddly-formatted DWARF
127 libdwfl: bug fixes in offline archive support, symbol table handling;
128 apply partial relocations for dwfl_module_address_section on ET_REL
130 libebl: powerpc backend support for Altivec registers
134 readelf: -p option can take an argument like -x for one section,
135 or no argument (as before) for all SHF_STRINGS sections;
136 new option --archive-index (or -c);
137 improved -n output for core files, on many machines
139 libelf: new function elf_getdata_rawchunk, replaces gelf_rawchunk;
140 new functions gelf_getnote, gelf_getauxv, gelf_update_auxv
142 readelf, elflint: handle SHT_NOTE sections without requiring phdrs
144 elflint: stricter checks on debug sections
146 libdwfl: new functions dwfl_build_id_find_elf, dwfl_build_id_find_debuginfo,
147 dwfl_module_build_id, dwfl_module_report_build_id;
148 support dynamic symbol tables found via phdrs;
149 dwfl_standard_find_debuginfo now uses build IDs when available
151 unstrip: new option --list (or -n)
153 libebl: backend improvements for sparc, alpha, powerpc
157 readelf: new options --hex-dump (or -x), --strings (or -p)
159 addr2line: new option --symbols (or -S)
165 elfcmp: new option --hash-inexact
169 libdw: new function dwarf_getsrcdirs
171 libdwfl: new functions dwfl_module_addrsym, dwfl_report_begin_add,
172 dwfl_module_address_section
180 elflint: Compare DT_GNU_HASH tests.
182 move archives into -static RPMs
184 libelf, elflint: better support for core file handling
188 libebl: sparc backend support for return value location
190 libebl, libdwfl: backend register name support extended with more info
192 libelf, libdw: bug fixes for unaligned accesses on machines that care
194 readelf, elflint: trivial bugs fixed
198 libebl: Backend build fixes, thanks to Stepan Kasal.
200 libebl: ia64 backend support for register names, return value location
202 libdwfl: Handle truncated linux kernel module section names.
204 libdwfl: Look for linux kernel "vmlinux" files with ".debug" suffix.
206 elflint: Fix checks to permit --hash-style=gnu format.
210 libebl: add function to test for relative relocation
212 elflint: fix and extend DT_RELCOUNT/DT_RELACOUNT checks
214 elflint, readelf: add support for DT_GNU_HASH
215 libelf: add elf_gnu_hash
217 elflint, readelf: add support for 64-bit SysV-style hash tables
219 libdwfl: new functions dwfl_module_getsymtab, dwfl_module_getsym.
223 libelf: bug fixes for rewriting existing files when using mmap.
225 make all installed headers usable in C++ code.
227 readelf: better output format.
229 elflint: fix tests of dynamic section content.
231 ld: Implement --as-needed, --execstack, PT_GNU_STACK. Many small patches.
233 libdw, libdwfl: handle files without aranges info.
239 dwarf.h updated for DWARF 3.0 final specification.
241 libdwfl: New function dwfl_version.
243 The license is now GPL for most files. The libelf, libebl, libdw,
244 and libdwfl libraries have additional exceptions. Add reference to
255 libdwfl: New function dwfl_module_register_names.
257 libebl: New backend hook for register names.
261 libdwfl: New function dwfl_module_return_value_location.
263 libebl: Backend improvements for several CPUs.
267 libdw: New functions dwarf_ranges, dwarf_entrypc, dwarf_diecu,
268 dwarf_entry_breakpoints. Removed Dwarf_Func type and functions
269 dwarf_func_name, dwarf_func_lowpc, dwarf_func_highpc,
270 dwarf_func_entrypc, dwarf_func_die; dwarf_getfuncs callback now uses
271 Dwarf_Die, and dwarf_func_file, dwarf_func_line, dwarf_func_col
272 replaced by dwarf_decl_file, dwarf_decl_line, dwarf_decl_column;
273 dwarf_func_inline, dwarf_func_inline_instances now take Dwarf_Die.
274 Type Dwarf_Loc renamed to Dwarf_Op; dwarf_getloclist,
275 dwarf_addrloclists renamed dwarf_getlocation, dwarf_getlocation_addr.
279 libelf: speed-ups of non-mmap reading.
281 strings: New program.
283 Implement --enable-gcov option for configure.
285 libdw: New function dwarf_getscopes_die.
289 libelf: new function elf_getaroff
291 libdw: Added dwarf_func_die, dwarf_func_inline, dwarf_func_inline_instances.
293 libdwfl: New functions dwfl_report_offline, dwfl_offline_section_address,
294 dwfl_linux_kernel_report_offline.
300 elflint: relax a bit. Allow version definitions for defined symbols against
301 DSO versions also for symbols in nobits sections. Allow .rodata section
302 to have STRINGS and MERGE flag set.
304 strip: add some more compatibility with binutils.
308 elfcmp: some more relaxation.
310 elflint: many more tests, especially regarding to symbol versioning.
312 libelf: Add elfXX_offscn and gelf_offscn.
314 libasm: asm_begin interface changes.
316 libebl: Add three new interfaces to directly access machine, class, and
317 data encoding information.
319 objdump: New program. Just the beginning.
323 libdw: now contains all of libdwfl. The latter is not installed anymore.
325 elfcmp: little usability tweak, name and index of differing section is printed.
329 libelf: fix a number of problems with elf_update
331 elfcmp: fix a few bugs. Compare gaps.
333 Fix a few PLT problems and mudflap build issues.
335 libebl: Don't expose Ebl structure definition in libebl.h. It's now private.
339 libebl: Check for matching modules.
341 elflint: Check that copy relocations only happen for OBJECT or NOTYPE symbols.
345 libdwfl: New library.
349 strip: fix bug introduced in last change
351 libdw: records returned by dwarf_getsrclines are now sorted by address
355 readelf: improve DWARF output format
357 strip: support Linux kernel modules
361 libdw: Updated dwarf.h from DWARF3 spec
362 libdw: add new funtions dwarf_func_entrypc, dwarf_func_file, dwarf_func_line,
363 dwarf_func_col, dwarf_getsrc_file
367 addr2line: New program
369 libdw: add new functions: dwarf_addrdie, dwarf_macro_*, dwarf_getfuncs,
372 findtextrel: use dwarf_addrdie
376 findtextrel: New program.
380 libdw: Fix using libdw.h with gcc < 4 and C++ code. Compiler bug.
384 More Makefile and spec file cleanups.
388 Remove most gettext autoconf handling.
392 Fix resulting problems. One actual bug found and fixed this way
396 libebl: Fix x86-64 relocations.
398 Add -Wunused -Wextra warnings.
400 Some cleanups resulting from those additional warnings.
402 Lots of Makefile cleanup.
406 libelf: add gelf_checksum prototype to <libelf.h>
408 libelf: fix elf*_checksum handling of NOBITS sections
410 Finish mudflap support.
412 Fix three bugs found by mudflap.
414 ld: add as_needed support
418 readelf: in section to segment mapping, indicate read-only sections.
420 elflint: more relaxation for GNU ld
424 Fix compiling with gcc 4.0.
425 Some tests called elflint without appropriate LD_LIBRARY_PATH.
429 Fix support for platforms with lib64.
433 libebl: add ppc and ppc64 support
435 readelf: fix minimal memory leak.
437 Add support to compile with mudflap.
439 Modernize configure.ac. Move scripts in config subdir.
441 Modernize *-po directory infrastructure.
443 libelf: Add gelf_getlib and gelf_update_lib
445 readelf: print liblist sections
449 Fix some minimal build problems.
453 ibdw: tons of new functionality and bug fixes. Several interface changes.
455 readelf: use libdw now.
457 libdwarf: removed completely.
461 configuration changes.
465 libdw: fix memory handling. Implement source line handling.
466 nm: use libdw instead of libdwarf.
467 libelf: change to GPL from OSL1 for now.
471 libebl: Recognize a few more section types and dynamic tags and return
476 strip: fix overwriting of symbol table in input file.
480 libebl: Add some ia64 bits.
484 Bug fixes for big endian and some 64-bit machines.
488 strip: fix handling of Alpha and s390x which use incorrect hash bucket sizes.
490 ld: tons of changes, moving towards usability.
494 strip: update section group symbol index if the associated symbol table changed
496 libelf: fix two problems with generating output not via mmap
498 elflint: add probably 10-15 more tests
499 libebl: add support for some of the new tests
501 ld: gazillion changes
505 elflint: deal with .rel.dyn section. Fix a problem with rela platforms.
506 Handle PT_GNU_STACK. Change to write messages to stdout.
508 readelf: fix a problem with version information in the symbol table output.
510 strip: update all version symbol table entries
516 strip: last changed caused problems when the symbol table is before the
517 relocation section. Fixed. This fix also improved the asymptotic
518 behavior if many symbol table sections are present.
522 Run strip tests with the correct libelf and libebl.
524 libelf: fix bug in verneed byte order changing code.
528 strip: Remove unused symbol table entries. This might require updating
529 various other sections.
533 Fix some libelf problems with ET_REL files.
537 More warning changes, mainly by jbj.
539 libdw: yet more new code. dwarf_child and dwarf_sibling should now actually
544 libdw: 10+ new functions. get-pubnames2 works now fully. Almost all the
545 code needed for nm is in place.
549 cleanups to compile cleanly with gcc 3.3 and -Werror.
551 libdw: some new code.
555 libebl: Fix last patch to recognize relocation sections. We must not
560 libebl: .debug_ranges is a DWARF 3 debug section
561 libebl: recognize relocation sections for debug section
562 Patches by Jakub Jelinek.
566 Cleanups and more SPARC support by Tom Callaway <tcallaway@redhat.com>.
570 64-bit cleanups for the programs.
574 libelf: and yet more fun with endian tranformation at output time.
578 libelf: more fun with endian tranformation at output time. Add test for it.
582 libelf: Two little bugs left from previous patch to handle section output
585 libelf: add unlikely in some more places.
589 libelf: fix output routines to handle case where section indeces and
590 ordre in the output file don't match correctly. Patch by Jakub.
592 elflint: fix test of note section content for 64-bit platforms and files
593 with different byte order.
597 libebl: Fix SH_ENTSIZE_HASH definition (patch by Jakub)
601 libelf: correct mistake in error string handling.
603 libelf: Implement ELF_F_PERMISSIVE.
604 strip: Implement --permissive option.
608 strip: Implement -g option.
610 libelf: Handle broken hash table entry sizes.
612 libebl: New function ebl_debugscn_p. Use it where appropriate.
616 libelf: Use correct file size for NOBITS section with ELF_F_LAYOUT set
620 libelf: Make error handling more robust.
621 libelf: Use TLS in error handler if configured with --enable-tls
623 tests: input files are now distributed, not uuencoded in the shell scripts
625 libdw: implement error handling, dwarf_get_pubnames
629 Build (incomplete) libdw.
641 libebl: Handle .gnu.warning.* sections correctly.
643 size: Implement -t option.
645 libebl: Add IA-64 support.
646 libebl: Update SH relocations.
647 libebl: Add Alpha support.
648 libebl: Add Arm support.
649 libebl: Add support for all currently known architecture to the loader.
653 nm: Implement -S option. Correct portable output format. Implement -s option.
655 libelf: Take offset of archive into account in elf_rand.
659 strip: fix handling of ET_REL files.
664 strip: respect layout of input file
668 strip: handle files with large number of sections.
672 libelf: quite a few bug fixes by Alex Larsson.
674 strip: implement -f option to place stripped sections into a separate
675 file. By Alex Larsson.
679 strip: don't let STT_SECTION symbols keeps sections from being removed
681 elflint: local symbols are allowed in .dynsym
682 elflint: special case .rel.dyn a bit
686 elflint: check types and flags of special sections defined in gABI
688 libebl: add x86-64 support
692 Start improvement of debug info handling in nm.
694 libasm: implement asm_adduleb128 and asm_addsleb128 and a test for them
698 Fix build on 64-bit platforms.
702 nm: print file/line number also for local symbols
704 use versions scripts not libtool's useless -export-symbols option
708 Update to autoconf 2.54 and automake 1.7.
710 elflint: check note sections
712 libdwarf: a number of bug fixes
714 readelf: print .debug_info section content
716 dwarf.h: Update from draft 7
722 libelf: new function to read parts of the ELF file
724 libebl: support for note section handling
726 readelf: dump note sections
730 libelf: fix little new section-handling related bugs in elf_getshstrndx
733 elflint: tests for mandatory content of dynamic section
735 libasm: better handling of absolute symbols
739 libasm: rewrite to store Elf_Scn* instead of indices
741 nm: finish many-section support
743 nm: use debug in to print file/line info in sysv format
745 libdwarf: fix a few bugs in DIE handling
749 libelf: major rewrite to keep Elf_Scn references valid until elf_end
753 libasm: Add support for bss, ABS, and COM sections.
755 libebl: ebl_section_name takes now two index arguments to distinguish
756 between special sections and extended sections
760 General: fix a few problem gcc 3.1 had with the code.
762 libelf: implement {gelf,elf32,elf64}_checksum
764 libelf: optimze DSO: fewer relocations, fewer PLTs
768 ld: use correct section header string table index; write correct index
770 add dependencies for *.sym files
774 libelf: add elf_getshnum and elf_getshstrndx
776 libebl: update section type name function
778 elflint: tons of fixes wrt large number of sections. New tests in this area.
779 Same amount of other bug fixes.
781 size, strip, nm: better support for large number of sections. Including
782 using correct section header string table
784 libasm: correctly create data structures for large number of sections
786 new tests asm-tst4 and asm-tst5 to check large number of sections
788 libasm: implement section group generation
790 elflint: more tests on section groups. Improve performance on existing
795 ld: add undefined symbols to dynamic symbol table if --export-dynamic is
798 ld: fix value of e_entry
802 elflint: print section names in error messages
804 elflint: mustn't warn about multiple DT_NULL
806 ld: don't emit all symbols if --export-dynamic is not given
808 ld: correct compute symbol address in output file (section index was off by 1)
810 ld: generate correct version info in dynsym without --export-dynamic and
815 Fix check of various e_*size entries in elflint.
817 Handle text output in asm_newsym.
819 Finish checks in asm-tst3.
823 Update to autoconf 2.53, automake 1.6, gettext 0.11+.
825 Introduce *.sym files to restrict export from DSOs.
827 Use attribute_hidden and internal_function to optimize DSO code.
829 Add TLS definitions in elf.h and handle them in readelf.
831 Fix bug in verdef section generation in ld.
833 Add initial libasm code.
837 Implement better hash size optimization heuristic in ld. It uses a formula
838 taking number of tests into account.
840 Lots of small bug fixes.
842 Improve readelf output format. Respect various sh_link/sh_info values.
843 Correctly print versioning information for symbol tables.
847 Implement preprocessing of linker script. Recognize -z combreloc.
851 Implement -z ignore|record for ld.
853 Implement creating of .gnu.version_r and .gnu.version sections. The
854 .gnu.version does not yet contain correct info for defined and versioned
855 symbols (means .gnu.version_d is not yet implemented).
857 Implement gelf_update_* functions to create versioning data.
861 Add DT_RUNPATH/DT_RPATH entries to dynamic section. Create .plt and
862 .rel.plt sections (completely). Add support for all four PLT related
863 dynamic section entries. Add callback function for PLT creation.
865 More tests in elflint. Add support for very strict checking which for
866 now flags level 2 (deprecated features) usage.
870 Create dynamic symbol table, dynamic string table, and hash table to ld.
872 Add hash table histogram support to readelf.
878 ld now creates the dynamic section and references it. Start adding entries
883 Start implementing elflint.
887 Fix handling of NOBITS sections in elf_getdata.
889 Start implementing generation of executables and DSOs in ld.
890 Generation of program header mostly done. Address computation done.
891 Extension of linker script syntax.
895 Implement section group handling in readelf.
899 Implement section groups. This involved a lot of code moving. The
900 new code is entirely untested since gas/gcc are currently not able to
901 create section groups. ld works fine on files without section groups.
905 Fix problem with adding more section in elf_newscn. The section pointers
906 for the data buffers wasn't adjusted.
908 Fix elf_getdata with nonzero second parameter. Correctly handle creation
909 of internal data buffer for machines without unaligned access.
913 Start adding support to selectively add sections. Includes support for
915 Add --gc-sections/--no-gc-sections options.
916 Add general section merging support.
918 Fix a bug in section group support in strip.
920 Fix some potential problems with hash value in dynamic hash implementation.
924 section merging works in ld.
928 Actually create data structures from version map file and use it to hide
931 Implement -s -s for ld.
935 Improve relocation table output in readelf. Avoid some crashes.
936 Finish many section handling in readelf.
938 Finish: finish implementation of ld -r. At least some simple tests pass.
942 Fix a number of errors in ELF_C_WRITE handling.
944 Almost finished implementation of ld -r. The data sections are all copied.
945 Handling of symbol tables is missing.
949 Handle DSO and archive input files correctly if -r option is given.
951 Gracefully deal with no phdr in new file in libelf.
952 Fix various small error handling problems.
953 Don't mmap file for output unless the command says so.
955 Add code to create ELF section header table to ld finalize routines.
959 Fix some problems with recursive handling of archives in libelf.
961 Improve messages printed by nm.
963 Add symbol binding name handling to libebl. Fix section name handling in
966 readelf and nm use more libebl functions.
968 Handle XINDEX correctly in nm and string.
970 Add first machine ld backend library (i386).
971 Use it. Recognize -r and --shared. Avoid using -lxxx parameters for -r.
972 Create ELF header in output file. Change mode of output file according to
973 output file type. Reorganize callback initialization in ld.
977 Fix some memory leaks in libelf.
981 Implement reading version script. Both inside linker scripts and via the
982 --version-script command line parameter. Uses the same code.
983 What remains to be done is to implement a data structure which allows
984 efficient matching against the version names to decide which pattern
987 Beginning of output generation and output writing functions.
991 Finish implementation for DSO input file handling. Implement rpath, runpath,
992 and LD_LIBRARY_PATH handling.
996 make handling of e_shnum overflow in libelf standard conforming
998 ld now actually can handle DSOs in linker scripts. Handling of DT_RUNPATH,
999 DT_RPATH, -rpath, -rpath-link still remains to be implemented.
1001 fix handling of -L parameters. Make actual use of the default_paths element.
1003 make re-definition of symbols in and from DSO compatible with existing linker
1007 more work on assigning input sections to output sections.
1009 Add gelf_xlatetof and gelf_xlatetom which were accidently left out.
1011 Fix memory handling of section headers.
1015 Add many-section support to ld. Add various new command line parameters.
1016 Allow pagesize to be specified in linker script or on the command line.
1017 Collect input sections in list for the output section according to the rules
1018 specified in the linker script.
1022 Fix some problems in the internal list handling which had the result
1023 that we didn't look for some of the unresolved symbols.
1025 Free some memory if we know we don't need it anymore.
1027 Optimize the list of unresolved symbols. Throw out symbols which are
1032 Got file reading correct now. The files are all read while parsing
1033 the parameters. No creating of data structures to describe the linker
1034 command line. The symbol table is built up while reading the files.
1035 DSOs are handled now. -( -) handling is optimized.
1039 Linker read linker scripts everywhere. Handles --whole-archive. Recognizes
1040 --dynamic and --static. Collects defined and undefined symbols. Recognizes
1043 libebl now defines functions to call the callbacks. Add generic name handling
1044 in these new functions. Remove the code from readelf and call the new
1049 Start of linker. Basic argument parsing, finding of input files,
1050 linker script reading.
1054 Implement dwarf_get_fde_n(), dwarf_get_abbrev(), dwarf_get_abbrev_tag(),
1055 dwarf_get_abbrev_code(), dwarf_get_abbrev_children_flag(),
1056 dwarf_get_abbrev_entry(), dwarf_get_fde_at_pc(), and tests for it.
1060 Implement dwarf_get_fde_list_eh(), dwarf_get_cie_of_fde(),
1061 dwarf_get_fde_range(), dwarf_get_cie_info(), dwarf_get_fde_instr_bytes(),
1066 Make handling of binaries in other byte order work and add tests for it.
1070 Implement dwarf_get_aranges(), dwarf_get_arange(), dwarf_get_cu_die_offset(),
1071 dwarf_get_arange_info(), and tests for them.
1075 Implement dwarf_get_global(), dwarf_globname(), dwarf_global_die_offset(),
1076 dwarf_global_cu_offset(), dwarf_global_name_offsets(), and tests for them
1080 Implemented dwarf_srclines(), dwarf_srcfiles(), dwarf_linebeginstatement(),
1081 dwarf_lineendsequence(), dwarf_lineno(), dwarf_lineaddr(), dwarf_lineoff(),
1082 dwarf_linesrc(), dwarf_lineblock(), dwarf_lineprologueend(),
1083 dwarf_lineepiloguebegin(), and tests for them.
1087 Implemented dwarf_loclist().
1091 Implemented dwarf_dieoffset(), dwarf_die_CU_offset(), dwarf_diename() and
1094 Implemented dwarf_attrlist(), dwarf_hasattr(), dwarf_attr(), dwarf_lowpc(),
1095 dwarf_highpc(), dwarf_bytesize(), dwarf_bitsize(), dwarf_bitoffset(),
1096 dwarf_srclang(), dwarf_arrayorder(), dwarf_hasform(), dwarf_whatform(),
1097 dwarf_whatattr(), dwarf_formref(), dwarf_global_formref(), dwarf_formaddr(),
1098 dwarf_formflag(), dwarf_formudata(), dwarf_formsdata(), dwarf_formblock,
1099 dwarf_formstring() and tests for them.
1103 Implemented dwarf_offdie()), dwarf_tag(), dwarf_dieoffset(),
1104 dwarf_die_CU_offset(), dwarf_diename() and tests for them.
1108 First libdwarf functions work.
1112 libelf and parts of libebl are done.