1 Version 0.153 2 3 libdw: Support reading .zdebug_* DWARF sections compressed via zlib. 4 5 libdwfl: Speed up dwfl_module_addrsym. 6 7 nm: Support C++ demangling. 8 9 ar: Support D modifier for "deterministic output" with no uid/gid/mtime info. 10 The U modifier is the inverse. 11 elfutils can be configured with the --enable-deterministic-archives 12 option to make the D behavior the default when U is not specified. 13 14 ranlib: Support -D and -U flags with same meaning. 15 16 readelf: Improve output of -wline. Add support for printing SDT elf notes. 17 Add printing of .gdb_index section. 18 Support for typed DWARF stack, call_site and entry_value. 19 20 strip: Add --reloc-debug-sections option. 21 Improved SHT_GROUP sections handling. 22 23 Version 0.152 24 25 Various build and warning nits fixed for newest GCC and Autoconf. 26 27 libdwfl: Yet another prelink-related fix for another regression. 28 Look for Linux kernel images in files named with compression suffixes. 29 30 elfcmp: New flag --ignore-build-id to ignore differing build ID bits. 31 New flag -l/--verbose to print all differences. 32 33 Version 0.151 34 35 libdwfl: Fix for more prelink cases with separate debug file. 36 37 strip: New flag --strip-sections to remove section headers entirely. 38 39 Version 0.150 40 41 libdw: Fix for handling huge .debug_aranges section. 42 43 libdwfl: Fix for handling prelinked DSO with separate debug file. 44 45 findtextrel: Fix diagnostics to work with usual section ordering. 46 47 libebl: i386 backend fix for multi-register integer return value location. 48 49 Version 0.149: 50 51 libdw: Decode new DW_OP_GNU_implicit_pointer operation; 52 new function dwarf_getlocation_implicit_pointer. 53 54 libdwfl: New function dwfl_dwarf_line. 55 56 addr2line: New flag -F/--flags to print more DWARF line information details. 57 58 strip: -g recognizes .gdb_index as a debugging section. 59 60 Version 0.148: 61 62 libdw: Accept DWARF 4 format: new functions dwarf_next_unit, dwarf_offdie_types. 63 New functions dwarf_lineisa, dwarf_linediscriminator, dwarf_lineop_index. 64 65 libdwfl: Fixes in core-file handling, support cores from PIEs. 66 When working from build IDs, don't open a named file that mismatches. 67 68 readelf: Handle DWARF 4 formats. 69 70 Version 0.147: 71 72 libdw: Fixes in CFI handling, best possible handling of bogus CFA ops. 73 74 libdwfl: Ignore R_*_NONE relocs, works around old (binutils) ld -r bugs. 75 76 Version 0.146: 77 78 libdwfl: New function dwfl_core_file_report. 79 80 Version 0.145: 81 82 Fix build with --disable-dependency-tracking. 83 84 Fix build with most recent glibc headers. 85 86 libelf: More robust to bogus section headers. 87 88 libdw: Fix CFI decoding. 89 90 libdwfl: Fix address bias returned by CFI accessors. 91 Fix core file module layout identification. 92 93 readelf: Fix CFI decoding. 94 95 Version 0.144: 96 97 libelf: New function elf_getphdrnum. 98 Now support using more than 65536 program headers in a file. 99 100 libdw: New function dwarf_aggregate_size for computing (constant) type 101 sizes, including array_type cases with nontrivial calculation. 102 103 readelf: Don't give errors for missing info under -a. 104 Handle Linux "VMCOREINFO" notes under -n. 105 106 Version 0.143: 107 108 libdw: Various convenience functions for individual attributes now use 109 dwarf_attr_integrate to look up indirect inherited attributes. 110 Location expression handling now supports DW_OP_implicit_value. 111 112 libdwfl: Support automatic decompression of files in XZ format, 113 and of Linux kernel images made with bzip2 or LZMA (as well as gzip). 114 115 Version 0.142: 116 117 libelf: Add elf_getshdrnum alias for elf_getshnum and elf_getshdrstrndx alias 118 for elf_getshstrndx and deprecate original names. Sun screwed up 119 their implementation and asked for a solution. 120 121 libebl: Add support for STB_GNU_UNIQUE. 122 123 elflint: Add support for STB_GNU_UNIQUE. 124 125 readelf: Add -N option, speeds up DWARF printing without address->name lookups. 126 127 libdw: Add support for decoding DWARF CFI into location description form. 128 Handle some new DWARF 3 expression operations previously omitted. 129 Basic handling of some new encodings slated for DWARF 4. 130 131 Version 0.141: 132 133 libebl: sparc backend fixes; 134 some more arm backend support 135 136 libdwfl: fix dwfl_module_build_id for prelinked DSO case; 137 fixes in core file support; 138 dwfl_module_getsym interface improved for non-address symbols 139 140 strip: fix infinite loop on strange inputs with -f 141 142 addr2line: take -j/--section=NAME option for binutils compatibility 143 (same effect as '(NAME)0x123' syntax already supported) 144 145 Version 0.140: 146 147 libelf: Fix regression in creation of section header 148 149 libdwfl: Less strict behavior if DWARF reader ist just used to display data 150 151 Version 0.139: 152 153 libcpu: Add Intel SSE4 disassembler support 154 155 readelf: Implement call frame information and exception handling dumping. 156 Add -e option. Enable it implicitly for -a. 157 158 elflint: Check PT_GNU_EH_FRAME program header entry. 159 160 libdwfl: Support automatic gzip/bzip2 decompression of ELF files. 161 162 Version 0.138: 163 164 Install <elfutils/version.h> header file for applications to use in source 165 version compatibility checks. 166 167 libebl: backend fixes for i386 TLS relocs; backend support for NT_386_IOPERM 168 169 libcpu: disassembler fixes 170 171 libdwfl: bug fixes 172 173 libelf: bug fixes 174 175 nm: bug fixes for handling corrupt input files 176 177 Version 0.137: 178 179 Minor fixes for unreleased 0.136 release. 180 181 Version 0.136: 182 183 libdwfl: bug fixes; new "segment" interfaces; 184 all the libdwfl-based tools now support --core=COREFILE option 185 186 Version 0.135: 187 188 libdwfl: bug fixes 189 190 strip: changed handling of ET_REL files wrt symbol tables and relocs 191 192 Version 0.134: 193 194 elflint: backend improvements for sparc, alpha 195 196 libdwfl, libelf: bug fixes 197 198 Version 0.133: 199 200 readelf, elflint, libebl: SHT_GNU_ATTRIBUTE section handling (readelf -A) 201 202 readelf: core note handling for NT_386_TLS, NT_PPC_SPE, Alpha NT_AUXV 203 204 libdwfl: bug fixes and optimization in relocation handling 205 206 elfcmp: bug fix for non-allocated section handling 207 208 ld: implement newer features of binutils linker. 209 210 Version 0.132: 211 212 libcpu: Implement x86 and x86-64 disassembler. 213 libasm: Add interface for disassembler. 214 215 all programs: add debugging of branch prediction. 216 217 libelf: new function elf_scnshndx. 218 219 Version 0.131: 220 221 libdw: DW_FORM_ref_addr support; dwarf_formref entry point now deprecated; 222 bug fixes for oddly-formatted DWARF 223 224 libdwfl: bug fixes in offline archive support, symbol table handling; 225 apply partial relocations for dwfl_module_address_section on ET_REL 226 227 libebl: powerpc backend support for Altivec registers 228 229 Version 0.130: 230 231 readelf: -p option can take an argument like -x for one section, 232 or no argument (as before) for all SHF_STRINGS sections; 233 new option --archive-index (or -c); 234 improved -n output for core files, on many machines 235 236 libelf: new function elf_getdata_rawchunk, replaces gelf_rawchunk; 237 new functions gelf_getnote, gelf_getauxv, gelf_update_auxv 238 239 readelf, elflint: handle SHT_NOTE sections without requiring phdrs 240 241 elflint: stricter checks on debug sections 242 243 libdwfl: new functions dwfl_build_id_find_elf, dwfl_build_id_find_debuginfo, 244 dwfl_module_build_id, dwfl_module_report_build_id; 245 support dynamic symbol tables found via phdrs; 246 dwfl_standard_find_debuginfo now uses build IDs when available 247 248 unstrip: new option --list (or -n) 249 250 libebl: backend improvements for sparc, alpha, powerpc 251 252 Version 0.129: 253 254 readelf: new options --hex-dump (or -x), --strings (or -p) 255 256 addr2line: new option --symbols (or -S) 257 258 Version 0.128: 259 260 new program: unstrip 261 262 elfcmp: new option --hash-inexact 263 264 Version 0.127: 265 266 libdw: new function dwarf_getsrcdirs 267 268 libdwfl: new functions dwfl_module_addrsym, dwfl_report_begin_add, 269 dwfl_module_address_section 270 271 Version 0.126: 272 273 new program: ar 274 275 Version 0.125: 276 277 elflint: Compare DT_GNU_HASH tests. 278 279 move archives into -static RPMs 280 281 libelf, elflint: better support for core file handling 282 283 Version 0.124: 284 285 libebl: sparc backend support for return value location 286 287 libebl, libdwfl: backend register name support extended with more info 288 289 libelf, libdw: bug fixes for unaligned accesses on machines that care 290 291 readelf, elflint: trivial bugs fixed 292 293 Version 0.123: 294 295 libebl: Backend build fixes, thanks to Stepan Kasal. 296 297 libebl: ia64 backend support for register names, return value location 298 299 libdwfl: Handle truncated linux kernel module section names. 300 301 libdwfl: Look for linux kernel "vmlinux" files with ".debug" suffix. 302 303 elflint: Fix checks to permit --hash-style=gnu format. 304 305 Version 0.122: 306 307 libebl: add function to test for relative relocation 308 309 elflint: fix and extend DT_RELCOUNT/DT_RELACOUNT checks 310 311 elflint, readelf: add support for DT_GNU_HASH 312 libelf: add elf_gnu_hash 313 314 elflint, readelf: add support for 64-bit SysV-style hash tables 315 316 libdwfl: new functions dwfl_module_getsymtab, dwfl_module_getsym. 317 318 Version 0.121: 319 320 libelf: bug fixes for rewriting existing files when using mmap. 321 322 make all installed headers usable in C++ code. 323 324 readelf: better output format. 325 326 elflint: fix tests of dynamic section content. 327 328 ld: Implement --as-needed, --execstack, PT_GNU_STACK. Many small patches. 329 330 libdw, libdwfl: handle files without aranges info. 331 332 Version 0.120: 333 334 Bug fixes. 335 336 dwarf.h updated for DWARF 3.0 final specification. 337 338 libdwfl: New function dwfl_version. 339 340 The license is now GPL for most files. The libelf, libebl, libdw, 341 and libdwfl libraries have additional exceptions. Add reference to 342 OIN. 343 344 Version 0.119: 345 346 bug fixes 347 348 Version 0.118: 349 350 elflint: more tests. 351 352 libdwfl: New function dwfl_module_register_names. 353 354 libebl: New backend hook for register names. 355 356 Version 0.117: 357 358 libdwfl: New function dwfl_module_return_value_location. 359 360 libebl: Backend improvements for several CPUs. 361 362 Version 0.116: 363 364 libdw: New functions dwarf_ranges, dwarf_entrypc, dwarf_diecu, 365 dwarf_entry_breakpoints. Removed Dwarf_Func type and functions 366 dwarf_func_name, dwarf_func_lowpc, dwarf_func_highpc, 367 dwarf_func_entrypc, dwarf_func_die; dwarf_getfuncs callback now uses 368 Dwarf_Die, and dwarf_func_file, dwarf_func_line, dwarf_func_col 369 replaced by dwarf_decl_file, dwarf_decl_line, dwarf_decl_column; 370 dwarf_func_inline, dwarf_func_inline_instances now take Dwarf_Die. 371 Type Dwarf_Loc renamed to Dwarf_Op; dwarf_getloclist, 372 dwarf_addrloclists renamed dwarf_getlocation, dwarf_getlocation_addr. 373 374 Version 0.115: 375 376 libelf: speed-ups of non-mmap reading. 377 378 strings: New program. 379 380 Implement --enable-gcov option for configure. 381 382 libdw: New function dwarf_getscopes_die. 383 384 Version 0.114: 385 386 libelf: new function elf_getaroff 387 388 libdw: Added dwarf_func_die, dwarf_func_inline, dwarf_func_inline_instances. 389 390 libdwfl: New functions dwfl_report_offline, dwfl_offline_section_address, 391 dwfl_linux_kernel_report_offline. 392 393 ranlib: new program 394 395 Version 0.113: 396 397 elflint: relax a bit. Allow version definitions for defined symbols against 398 DSO versions also for symbols in nobits sections. Allow .rodata section 399 to have STRINGS and MERGE flag set. 400 401 strip: add some more compatibility with binutils. 402 403 Version 0.112: 404 405 elfcmp: some more relaxation. 406 407 elflint: many more tests, especially regarding to symbol versioning. 408 409 libelf: Add elfXX_offscn and gelf_offscn. 410 411 libasm: asm_begin interface changes. 412 413 libebl: Add three new interfaces to directly access machine, class, and 414 data encoding information. 415 416 objdump: New program. Just the beginning. 417 418 Version 0.111: 419 420 libdw: now contains all of libdwfl. The latter is not installed anymore. 421 422 elfcmp: little usability tweak, name and index of differing section is printed. 423 424 Version 0.110: 425 426 libelf: fix a number of problems with elf_update 427 428 elfcmp: fix a few bugs. Compare gaps. 429 430 Fix a few PLT problems and mudflap build issues. 431 432 libebl: Don't expose Ebl structure definition in libebl.h. It's now private. 433 434 Version 0.109: 435 436 libebl: Check for matching modules. 437 438 elflint: Check that copy relocations only happen for OBJECT or NOTYPE symbols. 439 440 elfcmp: New program. 441 442 libdwfl: New library. 443 444 Version 0.108: 445 446 strip: fix bug introduced in last change 447 448 libdw: records returned by dwarf_getsrclines are now sorted by address 449 450 Version 0.107: 451 452 readelf: improve DWARF output format 453 454 strip: support Linux kernel modules 455 456 Version 0.106: 457 458 libdw: Updated dwarf.h from DWARF3 spec 459 libdw: add new funtions dwarf_func_entrypc, dwarf_func_file, dwarf_func_line, 460 dwarf_func_col, dwarf_getsrc_file 461 462 Version 0.105: 463 464 addr2line: New program 465 466 libdw: add new functions: dwarf_addrdie, dwarf_macro_*, dwarf_getfuncs, 467 dwarf_func_*. 468 469 findtextrel: use dwarf_addrdie 470 471 Version 0.104: 472 473 findtextrel: New program. 474 475 Version 0.103: 476 477 libdw: Fix using libdw.h with gcc < 4 and C++ code. Compiler bug. 478 479 Version 0.102: 480 481 More Makefile and spec file cleanups. 482 483 Version 0.101: 484 485 Remove most gettext autoconf handling. 486 487 Add more warnings 488 489 Fix resulting problems. One actual bug found and fixed this way 490 491 Version 0.100: 492 493 libebl: Fix x86-64 relocations. 494 495 Add -Wunused -Wextra warnings. 496 497 Some cleanups resulting from those additional warnings. 498 499 Lots of Makefile cleanup. 500 501 Version 0.99: 502 503 libelf: add gelf_checksum prototype to <libelf.h> 504 505 libelf: fix elf*_checksum handling of NOBITS sections 506 507 Finish mudflap support. 508 509 Fix three bugs found by mudflap. 510 511 ld: add as_needed support 512 513 Version 0.98: 514 515 readelf: in section to segment mapping, indicate read-only sections. 516 517 elflint: more relaxation for GNU ld 518 519 Version 0.97: 520 521 Fix compiling with gcc 4.0. 522 Some tests called elflint without appropriate LD_LIBRARY_PATH. 523 524 Version 0.96: 525 526 Fix support for platforms with lib64. 527 528 Version 0.95: 529 530 libebl: add ppc and ppc64 support 531 532 readelf: fix minimal memory leak. 533 534 Add support to compile with mudflap. 535 536 Modernize configure.ac. Move scripts in config subdir. 537 538 Modernize *-po directory infrastructure. 539 540 libelf: Add gelf_getlib and gelf_update_lib 541 542 readelf: print liblist sections 543 544 Version 0.94: 545 546 Fix some minimal build problems. 547 548 Version 0.93: 549 550 ibdw: tons of new functionality and bug fixes. Several interface changes. 551 552 readelf: use libdw now. 553 554 libdwarf: removed completely. 555 556 Version 0.92: 557 558 configuration changes. 559 560 Version 0.91: 561 562 libdw: fix memory handling. Implement source line handling. 563 nm: use libdw instead of libdwarf. 564 libelf: change to GPL from OSL1 for now. 565 566 Version 0.90: 567 568 libebl: Recognize a few more section types and dynamic tags and return 569 approriate strings. 570 571 Version 0.89: 572 573 strip: fix overwriting of symbol table in input file. 574 575 Version 0.88: 576 577 libebl: Add some ia64 bits. 578 579 Version 0.87: 580 581 Bug fixes for big endian and some 64-bit machines. 582 583 Version 0.86: 584 585 strip: fix handling of Alpha and s390x which use incorrect hash bucket sizes. 586 587 ld: tons of changes, moving towards usability. 588 589 Version 0.85: 590 591 strip: update section group symbol index if the associated symbol table changed 592 593 libelf: fix two problems with generating output not via mmap 594 595 elflint: add probably 10-15 more tests 596 libebl: add support for some of the new tests 597 598 ld: gazillion changes 599 600 Version 0.84: 601 602 elflint: deal with .rel.dyn section. Fix a problem with rela platforms. 603 Handle PT_GNU_STACK. Change to write messages to stdout. 604 605 readelf: fix a problem with version information in the symbol table output. 606 607 strip: update all version symbol table entries 608 609 Version 0.83: 610 611 size: fix a warning 612 613 strip: last changed caused problems when the symbol table is before the 614 relocation section. Fixed. This fix also improved the asymptotic 615 behavior if many symbol table sections are present. 616 617 Version 0.82: 618 619 Run strip tests with the correct libelf and libebl. 620 621 libelf: fix bug in verneed byte order changing code. 622 623 Version 0.81: 624 625 strip: Remove unused symbol table entries. This might require updating 626 various other sections. 627 628 Version 0.80: 629 630 Fix some libelf problems with ET_REL files. 631 632 Version 0.79: 633 634 More warning changes, mainly by jbj. 635 636 libdw: yet more new code. dwarf_child and dwarf_sibling should now actually 637 work. 638 639 Version 0.78: 640 641 libdw: 10+ new functions. get-pubnames2 works now fully. Almost all the 642 code needed for nm is in place. 643 644 Version 0.77: 645 646 cleanups to compile cleanly with gcc 3.3 and -Werror. 647 648 libdw: some new code. 649 650 Version 0.76: 651 652 libebl: Fix last patch to recognize relocation sections. We must not 653 use the name. 654 655 Version 0.75: 656 657 libebl: .debug_ranges is a DWARF 3 debug section 658 libebl: recognize relocation sections for debug section 659 Patches by Jakub Jelinek. 660 661 Version 0.74: 662 663 Cleanups and more SPARC support by Tom Callaway <tcallaway (a] redhat.com>. 664 665 Version 0.73: 666 667 64-bit cleanups for the programs. 668 669 Version 0.72: 670 671 libelf: and yet more fun with endian tranformation at output time. 672 673 Version 0.71: 674 675 libelf: more fun with endian tranformation at output time. Add test for it. 676 677 Version 0.70: 678 679 libelf: Two little bugs left from previous patch to handle section output 680 order. 681 682 libelf: add unlikely in some more places. 683 684 Version 0.69: 685 686 libelf: fix output routines to handle case where section indeces and 687 ordre in the output file don't match correctly. Patch by Jakub. 688 689 elflint: fix test of note section content for 64-bit platforms and files 690 with different byte order. 691 692 Version 0.68: 693 694 libebl: Fix SH_ENTSIZE_HASH definition (patch by Jakub) 695 696 Version 0.67: 697 698 libelf: correct mistake in error string handling. 699 700 libelf: Implement ELF_F_PERMISSIVE. 701 strip: Implement --permissive option. 702 703 Version 0.66: 704 705 strip: Implement -g option. 706 707 libelf: Handle broken hash table entry sizes. 708 709 libebl: New function ebl_debugscn_p. Use it where appropriate. 710 711 Version 0.65: 712 713 libelf: Use correct file size for NOBITS section with ELF_F_LAYOUT set 714 715 Version 0.64: 716 717 libelf: Make error handling more robust. 718 libelf: Use TLS in error handler if configured with --enable-tls 719 720 tests: input files are now distributed, not uuencoded in the shell scripts 721 722 libdw: implement error handling, dwarf_get_pubnames 723 724 Version 0.63: 725 726 Build (incomplete) libdw. 727 728 Version 0.62: 729 730 Get rid of libtool. 731 732 Version 0.61: 733 734 Fix URL of OSL. 735 736 Version 0.60: 737 738 libebl: Handle .gnu.warning.* sections correctly. 739 740 size: Implement -t option. 741 742 libebl: Add IA-64 support. 743 libebl: Update SH relocations. 744 libebl: Add Alpha support. 745 libebl: Add Arm support. 746 libebl: Add support for all currently known architecture to the loader. 747 748 Version 0.59: 749 750 nm: Implement -S option. Correct portable output format. Implement -s option. 751 752 libelf: Take offset of archive into account in elf_rand. 753 754 Version 0.58: 755 756 strip: fix handling of ET_REL files. 757 Add tests for strip. 758 759 Version 0.57: 760 761 strip: respect layout of input file 762 763 Version 0.56: 764 765 strip: handle files with large number of sections. 766 767 Version 0.55: 768 769 libelf: quite a few bug fixes by Alex Larsson. 770 771 strip: implement -f option to place stripped sections into a separate 772 file. By Alex Larsson. 773 774 Version 0.54: 775 776 strip: don't let STT_SECTION symbols keeps sections from being removed 777 778 elflint: local symbols are allowed in .dynsym 779 elflint: special case .rel.dyn a bit 780 781 Version 0.53: 782 783 elflint: check types and flags of special sections defined in gABI 784 785 libebl: add x86-64 support 786 787 Version 0.52: 788 789 Start improvement of debug info handling in nm. 790 791 libasm: implement asm_adduleb128 and asm_addsleb128 and a test for them 792 793 Version 0.51: 794 795 Fix build on 64-bit platforms. 796 797 Version 0.50: 798 799 nm: print file/line number also for local symbols 800 801 use versions scripts not libtool's useless -export-symbols option 802 803 Version 0.49: 804 805 Update to autoconf 2.54 and automake 1.7. 806 807 elflint: check note sections 808 809 libdwarf: a number of bug fixes 810 811 readelf: print .debug_info section content 812 813 dwarf.h: Update from draft 7 814 815 Version 0.48: 816 817 libcpu: beginning 818 819 libelf: new function to read parts of the ELF file 820 821 libebl: support for note section handling 822 823 readelf: dump note sections 824 825 Version 0.47: 826 827 libelf: fix little new section-handling related bugs in elf_getshstrndx 828 and elf_nextscn 829 830 elflint: tests for mandatory content of dynamic section 831 832 libasm: better handling of absolute symbols 833 834 Version 0.46: 835 836 libasm: rewrite to store Elf_Scn* instead of indices 837 838 nm: finish many-section support 839 840 nm: use debug in to print file/line info in sysv format 841 842 libdwarf: fix a few bugs in DIE handling 843 844 Version 0.45: 845 846 libelf: major rewrite to keep Elf_Scn references valid until elf_end 847 848 Version 0.44: 849 850 libasm: Add support for bss, ABS, and COM sections. 851 852 libebl: ebl_section_name takes now two index arguments to distinguish 853 between special sections and extended sections 854 855 Version 0.43: 856 857 General: fix a few problem gcc 3.1 had with the code. 858 859 libelf: implement {gelf,elf32,elf64}_checksum 860 861 libelf: optimze DSO: fewer relocations, fewer PLTs 862 863 add msg_tst test 864 865 ld: use correct section header string table index; write correct index 866 867 add dependencies for *.sym files 868 869 Version 0.42: 870 871 libelf: add elf_getshnum and elf_getshstrndx 872 873 libebl: update section type name function 874 875 elflint: tons of fixes wrt large number of sections. New tests in this area. 876 Same amount of other bug fixes. 877 878 size, strip, nm: better support for large number of sections. Including 879 using correct section header string table 880 881 libasm: correctly create data structures for large number of sections 882 883 new tests asm-tst4 and asm-tst5 to check large number of sections 884 885 libasm: implement section group generation 886 887 elflint: more tests on section groups. Improve performance on existing 888 section group tests 889 890 Version 0.41: 891 892 ld: add undefined symbols to dynamic symbol table if --export-dynamic is 893 not given 894 895 ld: fix value of e_entry 896 897 Version 0.40: 898 899 elflint: print section names in error messages 900 901 elflint: mustn't warn about multiple DT_NULL 902 903 ld: don't emit all symbols if --export-dynamic is not given 904 905 ld: correct compute symbol address in output file (section index was off by 1) 906 907 ld: generate correct version info in dynsym without --export-dynamic and 908 in symtab 909 910 Version 0.39: 911 912 Fix check of various e_*size entries in elflint. 913 914 Handle text output in asm_newsym. 915 916 Finish checks in asm-tst3. 917 918 Version 0.38: 919 920 Update to autoconf 2.53, automake 1.6, gettext 0.11+. 921 922 Introduce *.sym files to restrict export from DSOs. 923 924 Use attribute_hidden and internal_function to optimize DSO code. 925 926 Add TLS definitions in elf.h and handle them in readelf. 927 928 Fix bug in verdef section generation in ld. 929 930 Add initial libasm code. 931 932 Version 0.37: 933 934 Implement better hash size optimization heuristic in ld. It uses a formula 935 taking number of tests into account. 936 937 Lots of small bug fixes. 938 939 Improve readelf output format. Respect various sh_link/sh_info values. 940 Correctly print versioning information for symbol tables. 941 942 Version 0.36: 943 944 Implement preprocessing of linker script. Recognize -z combreloc. 945 946 Version 0.35: 947 948 Implement -z ignore|record for ld. 949 950 Implement creating of .gnu.version_r and .gnu.version sections. The 951 .gnu.version does not yet contain correct info for defined and versioned 952 symbols (means .gnu.version_d is not yet implemented). 953 954 Implement gelf_update_* functions to create versioning data. 955 956 Version 0.34: 957 958 Add DT_RUNPATH/DT_RPATH entries to dynamic section. Create .plt and 959 .rel.plt sections (completely). Add support for all four PLT related 960 dynamic section entries. Add callback function for PLT creation. 961 962 More tests in elflint. Add support for very strict checking which for 963 now flags level 2 (deprecated features) usage. 964 965 Version 0.33: 966 967 Create dynamic symbol table, dynamic string table, and hash table to ld. 968 969 Add hash table histogram support to readelf. 970 971 Version 0.32: 972 973 more work on elflint 974 975 ld now creates the dynamic section and references it. Start adding entries 976 to dynamic section. 977 978 Version 0.31: 979 980 Start implementing elflint. 981 982 Version 0.30: 983 984 Fix handling of NOBITS sections in elf_getdata. 985 986 Start implementing generation of executables and DSOs in ld. 987 Generation of program header mostly done. Address computation done. 988 Extension of linker script syntax. 989 990 Various cleanups. 991 992 Implement section group handling in readelf. 993 994 Version 0.29: 995 996 Implement section groups. This involved a lot of code moving. The 997 new code is entirely untested since gas/gcc are currently not able to 998 create section groups. ld works fine on files without section groups. 999 1000 Version 0.28: 1001 1002 Fix problem with adding more section in elf_newscn. The section pointers 1003 for the data buffers wasn't adjusted. 1004 1005 Fix elf_getdata with nonzero second parameter. Correctly handle creation 1006 of internal data buffer for machines without unaligned access. 1007 1008 Version 0.27: 1009 1010 Start adding support to selectively add sections. Includes support for 1011 section groups. 1012 Add --gc-sections/--no-gc-sections options. 1013 Add general section merging support. 1014 1015 Fix a bug in section group support in strip. 1016 1017 Fix some potential problems with hash value in dynamic hash implementation. 1018 1019 Version 0.26: 1020 1021 section merging works in ld. 1022 1023 Version 0.25: 1024 1025 Actually create data structures from version map file and use it to hide 1026 symbols in ld. 1027 1028 Implement -s -s for ld. 1029 1030 Version 0.24: 1031 1032 Improve relocation table output in readelf. Avoid some crashes. 1033 Finish many section handling in readelf. 1034 1035 Finish: finish implementation of ld -r. At least some simple tests pass. 1036 1037 Version 0.23: 1038 1039 Fix a number of errors in ELF_C_WRITE handling. 1040 1041 Almost finished implementation of ld -r. The data sections are all copied. 1042 Handling of symbol tables is missing. 1043 1044 Version 0.22: 1045 1046 Handle DSO and archive input files correctly if -r option is given. 1047 1048 Gracefully deal with no phdr in new file in libelf. 1049 Fix various small error handling problems. 1050 Don't mmap file for output unless the command says so. 1051 1052 Add code to create ELF section header table to ld finalize routines. 1053 1054 Version 0.21: 1055 1056 Fix some problems with recursive handling of archives in libelf. 1057 1058 Improve messages printed by nm. 1059 1060 Add symbol binding name handling to libebl. Fix section name handling in 1061 libebl. 1062 1063 readelf and nm use more libebl functions. 1064 1065 Handle XINDEX correctly in nm and string. 1066 1067 Add first machine ld backend library (i386). 1068 Use it. Recognize -r and --shared. Avoid using -lxxx parameters for -r. 1069 Create ELF header in output file. Change mode of output file according to 1070 output file type. Reorganize callback initialization in ld. 1071 1072 Version 0.20: 1073 1074 Fix some memory leaks in libelf. 1075 1076 Version 0.19: 1077 1078 Implement reading version script. Both inside linker scripts and via the 1079 --version-script command line parameter. Uses the same code. 1080 What remains to be done is to implement a data structure which allows 1081 efficient matching against the version names to decide which pattern 1082 matches. 1083 1084 Beginning of output generation and output writing functions. 1085 1086 Version 0.18: 1087 1088 Finish implementation for DSO input file handling. Implement rpath, runpath, 1089 and LD_LIBRARY_PATH handling. 1090 1091 Version 0.17: 1092 1093 make handling of e_shnum overflow in libelf standard conforming 1094 1095 ld now actually can handle DSOs in linker scripts. Handling of DT_RUNPATH, 1096 DT_RPATH, -rpath, -rpath-link still remains to be implemented. 1097 1098 fix handling of -L parameters. Make actual use of the default_paths element. 1099 1100 make re-definition of symbols in and from DSO compatible with existing linker 1101 1102 Version 0.16: 1103 1104 more work on assigning input sections to output sections. 1105 1106 Add gelf_xlatetof and gelf_xlatetom which were accidently left out. 1107 1108 Fix memory handling of section headers. 1109 1110 Version 0.15: 1111 1112 Add many-section support to ld. Add various new command line parameters. 1113 Allow pagesize to be specified in linker script or on the command line. 1114 Collect input sections in list for the output section according to the rules 1115 specified in the linker script. 1116 1117 Version 0.14: 1118 1119 Fix some problems in the internal list handling which had the result 1120 that we didn't look for some of the unresolved symbols. 1121 1122 Free some memory if we know we don't need it anymore. 1123 1124 Optimize the list of unresolved symbols. Throw out symbols which are 1125 meanwhile resolved. 1126 1127 Version 0.13: 1128 1129 Got file reading correct now. The files are all read while parsing 1130 the parameters. No creating of data structures to describe the linker 1131 command line. The symbol table is built up while reading the files. 1132 DSOs are handled now. -( -) handling is optimized. 1133 1134 Version 0.12: 1135 1136 Linker read linker scripts everywhere. Handles --whole-archive. Recognizes 1137 --dynamic and --static. Collects defined and undefined symbols. Recognizes 1138 conflicts. 1139 1140 libebl now defines functions to call the callbacks. Add generic name handling 1141 in these new functions. Remove the code from readelf and call the new 1142 functions. 1143 1144 Version 0.11: 1145 1146 Start of linker. Basic argument parsing, finding of input files, 1147 linker script reading. 1148 1149 Version 0.10: 1150 1151 Implement dwarf_get_fde_n(), dwarf_get_abbrev(), dwarf_get_abbrev_tag(), 1152 dwarf_get_abbrev_code(), dwarf_get_abbrev_children_flag(), 1153 dwarf_get_abbrev_entry(), dwarf_get_fde_at_pc(), and tests for it. 1154 1155 Version 0.9: 1156 1157 Implement dwarf_get_fde_list_eh(), dwarf_get_cie_of_fde(), 1158 dwarf_get_fde_range(), dwarf_get_cie_info(), dwarf_get_fde_instr_bytes(), 1159 and tests for them. 1160 1161 Version 0.8: 1162 1163 Make handling of binaries in other byte order work and add tests for it. 1164 1165 Version 0.7: 1166 1167 Implement dwarf_get_aranges(), dwarf_get_arange(), dwarf_get_cu_die_offset(), 1168 dwarf_get_arange_info(), and tests for them. 1169 1170 Version 0.6: 1171 1172 Implement dwarf_get_global(), dwarf_globname(), dwarf_global_die_offset(), 1173 dwarf_global_cu_offset(), dwarf_global_name_offsets(), and tests for them 1174 1175 Version 0.5: 1176 1177 Implemented dwarf_srclines(), dwarf_srcfiles(), dwarf_linebeginstatement(), 1178 dwarf_lineendsequence(), dwarf_lineno(), dwarf_lineaddr(), dwarf_lineoff(), 1179 dwarf_linesrc(), dwarf_lineblock(), dwarf_lineprologueend(), 1180 dwarf_lineepiloguebegin(), and tests for them. 1181 1182 Version 0.4: 1183 1184 Implemented dwarf_loclist(). 1185 1186 Version 0.3: 1187 1188 Implemented dwarf_dieoffset(), dwarf_die_CU_offset(), dwarf_diename() and 1189 tests. 1190 1191 Implemented dwarf_attrlist(), dwarf_hasattr(), dwarf_attr(), dwarf_lowpc(), 1192 dwarf_highpc(), dwarf_bytesize(), dwarf_bitsize(), dwarf_bitoffset(), 1193 dwarf_srclang(), dwarf_arrayorder(), dwarf_hasform(), dwarf_whatform(), 1194 dwarf_whatattr(), dwarf_formref(), dwarf_global_formref(), dwarf_formaddr(), 1195 dwarf_formflag(), dwarf_formudata(), dwarf_formsdata(), dwarf_formblock, 1196 dwarf_formstring() and tests for them. 1197 1198 Version 0.2: 1199 1200 Implemented dwarf_offdie()), dwarf_tag(), dwarf_dieoffset(), 1201 dwarf_die_CU_offset(), dwarf_diename() and tests for them. 1202 1203 Version 0.1: 1204 1205 First libdwarf functions work. 1206 1207 Version 0.0: 1208 1209 libelf and parts of libebl are done. 1210
