v1.17: Fri 13 Mar 2020 f14426e41046 docs: Add command line to generate tarball with a prefix 0b2621d426ea dwarves: Avoid truncation when concatenating paths for dir entries d7b351079583 dwarves: Don't use conf if its NULL in cus__load_running_kernel() dde3eb086dd3 dwarves: Make list__for_all_tags() more robust 081f3618a795 dwarves: Add -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 to build libbpf e8f43a4963bf libbpf: Get latest libbpf de84ae36c738 cmake: libebl was merged into libdw 290b8fdbdab7 pahole: Improve --contains --recursive a bit 3d5be866e55f pahole: Fill 'tab' with spaces earlier 88674f039551 gobuffer: Do not crash on object without any public symbols cb17f94f46a0 Add changes-v1.16 to the MANIFEST file 32a19e044c93 pahole: Fix changelog date in dwarves.spec 9b09f578b7d1 pahole: Initialize var to silence -Werror=maybe-uninitialized on gcc version 4.8.5 20150623 277c2b3d1b4a man-pages: Add section about --hex + -E to locate offsets deep into sub structs 812c980b3f76 man-pages: Update some info, expand BTF info, add some EXAMPLES e0942c7b031f pahole: Add support for finding pointers to void 6a326e93088e pahole: Make --contains and --find_pointers_to to work with base types 3c1a9a3329d9 pahole: Make --contains look for more than just unions, structs ded5d36f9cf5 dwarves: Introduce cu__find_type_by_name 88d99562e55c pahole: Add --structs to ask just for structs, counterpart of --unions 0b444cf1118c pahole: Make --contains and --find_pointers_to honour --unions a8a7e605bb45 pahole: Make --find_pointers_to consider unions 0dc327e382f8 pahole: Consider unions when looking for classes containing some class 3661f17d0b2c pahole: Introduce --unions to consider just unions 2dd09c617101 pahole: union have no holes, fix --sizes formatter 6c29cca8c28f pahole: Don't consider unions for options that only make sense for structs dcba200367f7 pahole: When the sole argument passed isn't a file, take it as a class name 1944de0c93e6 pahole: Use function__for_each_parameter() 66e640508e4d dwarves: Make function__for_each_parameter receive 'cu' arg 252b0fcc91cc pahole: Fix -m/--nr_methods - Number of functions operating on a type pointer 202c8d5f5bd5 pahole: Do not require a class name to operate without a file name 617f5ac2e6c9 dwarves: Move BTF loader ahead of the CTF one cdd5e1399b9c btf loader: Support raw BTF as available in /sys/kernel/btf/vmlinux v1.16: Mon Dec 16 2019 69df73444c69 (HEAD -> master, acme.korg/master) dwarves: Add -O2 to CFLAGS 6d11dd157f75 elfcreator: Address initialization warning emitted by 'gcc -O6' 1bc63a4cffa7 fprintf: Fixup truncation possibility pointed out by gcc -O2 5c590fc29d06 ptr_table: Zero out new id ranges 644466dce77f fprintf: Remove extraneous sizeof operator a59459bb80e7 fprintf: Account inline type __aligned__ member types for spacing 56547f133a5b fprintf: Fix alignment of class members that are structs/enums/unions be37b64aef38 dwarves: Ignore static members for alignment cca018e495a8 SPEC: Add dwarves dependency on libdwarves1 ccf3eebfcd9c btf_loader: Add support for BTF_KIND_FUNC f95fd85f7b53 pfunct: type->type == 0 is void, fix --compile for that 3e8f09e304ba (origin/master, origin/HEAD) pdwtags: Print DW_TAG_subroutine_type as well 3c5f2a224aa1 btf_encoder: Preserve and encode exported functions as BTF_KIND_FUNC 910e060b5c4b btf_loader: Skip BTF_KIND_DATASEC entries 96235a74a34d btf_loader: Replace if/else series with a proper switch {} a4ba2234ff58 btf_loader: Support BTF_KIND_VAR 5965ce015eab dwarves: Fix ptr_table__add_with_id() handling of pt->nr_entries 173911ac38ea btf_loader: Show the unknown kind numbers 0d8e11e8568e pglobal: Allow passing the format path specifier, to use with BTF ba27df9f2f94 CMakeLists: Use lib/bpf/include/uapi when building libdwarves 95517e1d995e libbpf: Get latest libbpf ca294eebfc47 MANIFEST: Add missing files d5e01d10e515 fprintf: Set tconf.type_spacing earlier c6a9a0eb6ac7 fprintf: Fix up decrementing recursivity level in type__fprintf() 93c3cdf89715 cmake: Add -Wall to CFLAGS 7360f0528ff3 elfcreator: Remove unused 'machine' variable 0f52b11f911c prefcnt: Avoid ambiguous else with for_each macro 608813d0affa pglobal: Avoid ambiguous else 77d06c2d305d reorganize: Enclose bitfield routines under ifdef 2221ae30bce9 reorganize: Ditch unused variable c419c513eae5 libbtf: Enlarge the 'cmd' buffer to not possibly truncate the pathname 092fffe56701 btf_loader: Enum values are s32, cast before calling btf_elf__get32() 7bfb1aa80f9a libctf: Enlarge the 'cmd' buffer to not possibly truncate the pathname f67c281f9841 fprintf: Correct the type for the 'cacheline' variable, it should be uint32_t 7b36fab5a8df fprintf: Add guard against unlikely overlapping copy e737976c09d9 fprintf: Do not scrub type when looking up its type e95dacb704bf fprintf: Remove unused printf arg when printing enumerations 71c4f83f2828 emit: Remove unused 'is_pointer' variable fe87354c31bb dwarves: Ditch unused asprintf() function 60c73a769882 dwarves: We need to consistently check if 'conf was specified 5fdfd09a6bbe dwarves: Fix check in type__find_first_biggest_size_base_type_member() 24ced5be8a75 dwarf_loader: Fix array overrun access 33e2d7aa35a7 ctf_loader: Plug leak when bailing out due to unknown tag aefa9303818b codiff: Remove unused filenames variable de5e72bc15fb btf_loader: Plug leak when bailing out due to unknown tag 511a79129494 dwarves: Remove unused variable b1412a88bb61 fprintf: Fixup handling classes with no members [acme@quaco pahole]$ v1.15 Thu Jun 27 2019 3ed9a67967cf fprintf: Avoid null dereference with NULL configs 568dae4bd498 printf: Fixup printing "const" early with "const void" 68f261d8dfff fprintf: Fix recursively printing named structs in --expand_types 139a3b337381 ostra: Initial python3 conversion 01276a7e8966 spec: Sync spec with fedora's 9f1f0628b9ad rpm: Add missing devel headers 989dc3f1ba0d cmake: Install missing devel headers v1.13 Tue Apr 16 2019 See changes-v1.13 for a more verbose description of the changes. 0fb727166a0e pfunct: Strip inlines in the code generated for --compile 7b967744db7b emit: Emit the types for inline structs defined in pointer members 30526e2848db fprintf: Print relative offsets for inner pointer structs cfa377c238f8 emit: Do not emit a forward declararion to a nameless struct cf459ca16fb2 fprintf: Pretty print struct members that are pointers to nameless structs 09ed2e78befe pfunct: Emit definitions for pointers inside pointer to function args e9fc2f647026 fullcircle: Check that we found the CFLAGS 05921c47f557 emit: Handle typedefs that are a pointer to typedefs 87af9839bf63 fullcircle: Try building from pfunct --compile and check types c7fd9cc1fe97 pfunct: Fixup more return types 56c50b8dbe9b emit: Make find_fwd_decl a bit more robust 2bcb01fc2f9d fprintf: Handle single zero sized array member structs 0987266cd9e2 fprintf: Deal with zero sized arrays in the midle of a union 1101337a7450 fprintf: Deal with zero sized arrays in the middle of a struct 13aa13eb0ca4 fprintf: Don't reuse 'type' in multiple scopes in the same function c8fc6f5a7a46 core: Use unnatural alignment of struct embedded in another to infer __packed__ 6f0f9a881589 fprintf: Fixup multi-dimensional zero sized arrays const handling 9a4d71930467 fprintf: Allow suppressing the inferred __attribute__((__packed__)) ec935ee422b0 fprintf: Allow suppressing the output of force paddings at the end of structs 8471736f3c6c core: Cope with zero sized types when looking for natural alignment 986a3b58a869 fprintf: Only add bitfield forced paddings when alignment info available 49c27bdd6663 core: Allow the loaders to advertise features they have dc6b9437a3a0 emit: Handle structs with DW_AT_alignment=1 meaning __packed__ f78633cfb949 core: Infer __packed__ for union struct members 75c52de9c6df core: Move packed_attribute_inferred from 'class' to 'type' class 1bb4527220f4 fprintf: Fixup const pointers dc3d44196103 core: Improve the natural alignment calculation ac32e5e908ba codiff: Fix comparision of multi-cu against single-cu files f2641ce169d6 core: Take arrays into account when inferring if a struct is packed 85c99369631a fprintf: Do not add explicit padding when struct has __aligned__ attr b5e8fab596d3 emit: Cover void ** as a function parameter 28a3bc7addad fprintf: Support packed enums f77a442f09e3 fprintf: Do not print the __aligned__ attribute if asked ea583dac52f0 fprintf: Print zero sized flat arrays as [], not [0] f909f13dd724 fprintf: Fixup handling of unnamed bitfields 3247a777dcfc core: Infer if a struct is packed by the offsets/natural alignments 13e5b9fc00ee fprintf: Add unnamed bitfield padding at the end to rebuild original type ccd67bdb205b fprintf: Print "const" for class members more early, in type__fprintf() b42d77b0bbda fprintf: Print __attribute__((__aligned__(N))) for structs/classes 1c9c1d6bbd45 dwarf_loader: Store DW_AT_alignment if available in DW_TAG_{structure,union,class}_type 41c55858daf4 codiff: Add --quiet option a104eb1ea11d fprintf: Notice explicit bitfield alignment modifications 75f32a24c7c7 codiff: Improve the comparision of anonymous struct members 6b1e43f2c1ac codiff: When comparing against a file with just one CU don't bother finding by name 15a754f224f7 core: Add nr_entries member to 'struct cus' 99750f244cb8 pfunct: Generate a valid return type for the --compile bodies 881aabd6fc22 reorganize: Introduce class__for_each_member_from_safe() 1b2e3389f304 reorganize: Introduce class__for_each_member_reverse() 10fef2916dce reorganize: Introduce class__for_each_member_continue() e7a56ee8cc69 reorganize: Introduce class__for_each_member_from() 9a79bb6ced23 tag: Introduce tag__is_pointer_to() 45ad54594442 tag: Introduce tag__is_pointer() 89ce57a02e3a pdwtags: Find holes in structs ce6f393bc9ea fprintf: Fixup the printing of const parameters 7aec7dd6c29c pfunct: Do not reconstruct external functions 163b873f81c8 pfunct: Do not reconstruct inline expansions of functions ea83b780eca0 pfunct: Handle unnamed struct typedefs e7ebc05d12e1 emit: Unwind the definitions for typedefs in type__emit_definitions() 093135b0bfd5 pfunct: Do not emit a type multiple times 3ce2c5216612 pfunct: Ask for generating compilable output that generates DWARF for types e7a786540d83 pfunct: Make --expand_types/-b without -f expand types for all functions 9b2eadf97b44 pfunct: Follow const, restrict, volatile in --expand_types f3f86f2f89b0 pfunct: Reconstruct function return types for --expand_types a7d9c58cb81a fprintf: Add missing closing parens to the align attribute d83d9f578fa0 dwarf_loader: Handle DW_TAG_label in inline expansions 73e545b144b4 dwarf_loader: Handle unsupported_tag in die__process_inline_expansion fe590758cb3f class__find_holes: Zero out bit_hole/hole on member 863c2af6e9d7 reorganize: Disable the bitfield coalescing/moving steps b95961db697a fprintf: Show statistics about holes due to forced alignments ec772f21f681 fprintf: Show the number of forced alignments in a class 52d1c75ea437 btfdiff: Use --suppress_aligned_attribute with -F dwarf 6cd6a6bd8787 dwarves_fprintf: Allow suppressing the __attribute__((__aligned__(N)) f31ea292e3cb dwarf_loader: Store the DW_AT_alignment if available c002873c4479 dwarves_fprintf: Move invariant printing of ; to outside if block 8ce85a1ad7f0 reorganize: Use class__find_holes() to recalculate holes 5d1c4029bd45 dwarves: Fix classification of byte/bit hole for aligned bitfield 78c110a7ea24 dwarves: Revert semantics of member bit/byte hole b56fed297e5f dwarves_fprintf: Count bitfield member sizes separately c0fdc5e685e9 dwarf_loader: Use DWARF recommended uniform bit offset scheme 5104d1bef384 loaders: Record CU's endianness in dwarf/btf/ctf loaders 975757bc8867 dwarves: Use bit sizes and bit/byte hole info in __class__fprintf 1838d3d7623e dwarves: Revamp bit/byte holes detection logic 03d9b6ebcac7 dwarf_loader: Fix bitfield fixup logic for DWARF 4abc59553918 btf_loader: Adjust negative bitfield offsets early on 41cf0e3cba0c dwarf_loader: Don't recode enums and use real enum size in calculations 55c96aaed8ce loaders: Strip away volatile/const/restrict when fixing bitfields 7005757fd573 libbpf: Sync in latest libbpf sources 69970fc77ec5 pahole: Filter out unions when looking for packable structs fa963e1a8698 dwarves_fprintf: Print the bit_offset for inline enum bitfield class members bb8350acf52f dwarves: Switch type_id_t from uint16_t to uint32_t 5375d06faf26 dwarves: Introduce type_id_t for use with the type IDs f601f6725890 libctf: The type_ids returned are uint32_t fixup where it was uint16_t c9b2ef034f89 dwarf: Add cu__add_tag_with_id() to stop using id == -1 to allocate id 762e7b58f447 dwarves: Change ptr_table__add() signature to allow for uint32_t returns 079e6890b788 dwarf_loader: Mark tag__recode_dwarf_bitfield() static 3526ebebd3ab pahole: Use 32-bit integers for type ID iterations within CU 3bd8da5202e4 libbpf: update reference to bring in btf_dedup fixes a9afcc65fc8f btf_encoder: Don't special case packed enums 8f4f280163b7 btf_loader: Simplify fixup code by relying on BTF data more be5173b4df0f dwarves: Fixup sizeof(long double) in bits in base_type_name_to_size table 5081ed507095 dwarves: Add _Float128 base_type d52c9f9b9455 dwarf_loader: Fixup bitfield entry with same number of bits as its base_type 6586e423d4fa btf_loader: Fix bitfield fixup code 7daa4300d230 pahole: Complete list of base type names 6bcf0bd70305 btfdiff: Support specifying custom pahole location 88028b5d0c32 btfdiff: Use --show_private_classes with DWARF e6c59bd11d3d libbpf: Build as PIC and statically link into libdwarves cf4f3e282d64 cmake: Bump miminum required version to use OBJECT feature 5148be53dc65 btfdiff: Rename tmp files to contain the format used dd3a7d3ab3e8 btf_encoder: run BTF deduplication before writing out to ELF 54106025cd14 libbtf: Fixup temp filename to .btf, not .btfe e6dfd10bcbf3 libbpf: Build as shared lib c234b6ca6e55 libbpf: Pull latest libbpf fe4e1f799c55 btf_elf: Rename btf_elf__free() to btf_elf__delete() 6780c4334d55 btf: Rename 'struct btf' to 'struct btf_elf' ca86e9416b8b pahole: use btf.h directly from libbpf 21507cd3e97b pahole: add libbpf as submodule under lib/bpf c25ada500ddc pahole: Add build dir, config.h to .gitignore a58c746c4c7e Fixup copyright notices for BTF files authored by Facebook engineers e714d2eaa150 Adopt SPDX-License-Identifier c86960dce55d btf_loader: We can set class_member->type_offset earlier 278b64c3eee0 btfdiff: Use diff's -p option to show the struct/union 1182664d6aa6 dwarves_fprintf: Handle negative bit_offsets in packed structs with bitfields b0cf845e02c6 dwarves: Change type of bitfield_offset from uint8_t to int8_t 06e364bc62e7 btfdiff: Add utility to compare pahole output produced from DWARF and BTF b79db4cab41c dwarves: add __int128 types in base_type_name_to_size de3459cc0ebe btf_loader: BTF encodes the size of enums as bytes not bits 693347f8def7 btf_encoder: Fix void handling in FUNC_PROTO. 2d0b70664f3e dwarves_fprintf: Separate basic type stats into separate type__fprintf() method 18f5910f96e0 dwarves: Add type to tag helper f2092f56586a btf: recognize BTF_KIND_FUNC in btf_loader 11766614096c btf: Fix kind_flag usage in btf_loader 68b93e6858ae dutil: Add missing string.h header include 851ef335e328 dutil: Drop 'noreturn' attribute for ____ilog2_NaN() ab0cb33e54e8 btf_loader: Fixup class_member->bit_offset for !big_endian files b24718fe27d3 dwarves: Fix documentation for class_memer->bitfield_size 3ffe5ba93b63 pahole: Do not apply 'struct class' filters to 'struct type' da18bb340bee dwarves: Check if the tag is a 'struct class' in class__find_holes() 2a82d593be81 btf: Add kind_flag support for btf_loader 472256d3c57b btf_loader: Introduce a loader for the BTF format 93d6d0016523 dwarves: No need to print the "signed ", the name has it already 0a9bac9a3e8e dwarves: Relookup when searching for signed base types a2cdc6c2a0a3 dutil: Adopt strstart() from the linux perf tools sources 3aa3fd506e6c btf: add func_proto support 8630ce404287 btf: fix struct/union/fwd types with kind_flag 65bd17abc72c btf: Allow multiple cu's in dwarf->btf conversion d843945ba514 pahole: Search for unions as well with '-C' da632a36862c dwarves: Introduce {cu,cus}__find_struct_or_union_by_name() methods 31664d60ad41 pahole: Show tagged enums as well when no class is specified b18354f64cc2 btf: Generate correct struct bitfield member types 70ef8c7f07ff dwarves_fprintf: Set conf.cachelinep in union__fprintf() too bfdea37668c6 dwarves_fprintf: Print the scope of variables 465110ec99d3 dwarves: Add the DWARF location to struct variable c65f2cf4361e dwarves: Rename variable->location to ->scope 0d2511fd1d8e btf: Fix bitfield encoding 92417082aad3 MANIFEST: Add missing COPYING file eb6bd05766f5 dwarf_loader: Process DW_AT_count in DW_TAG_subrange_type v1.12 Thu Aug 16 2018 1ca2e351dfa1 README.btf: Add section on validating the .BTF section via the kernel 9eda5e8163ce README.btf: No need to use 'llvm.opts = -mattr=dwarfris' with elfutils >= 0.173 7818af53f64a dwarves: Add a README.btf file with steps to test the BTF encoder f727c22191d0 dwarf_loader: Initial support for DW_TAG_partial_unit e975ff247aa8 dwarves_fprintf: Print cacheline boundaries in multiple union members 68645f7facc2 btf: Add BTF support 81466af0d4f8 pahole: Show the file where a struct was used 2dd87be78bb2 dwarves_fprintf: Show offsets at union members 66cf3983e1ac README.DEBUG: Add an extra step to make the instructions cut'n'exec 2a092d61453c dwarves: Fix cus__load_files() success return value 02a456f5f54c pahole: Search and use running kernel vmlinux when no file is passed 5f057919a0c0 man-pages: Add entry for --hex v1.11 Wed Jun 2017 5a57eb074170 man-pages: Update URL to the dwarves paper b52386d041fa dwarves_fprintf: Find holes when expanding types 103e89bb257d dwarves_fprintf: Find holes on structs embedded in other structs ab97c07a7ebe dwarves_fprintf: Fixup cacheline boundary printing on expanded structs 046ad67af383 dwarves_fprintf: Shorten class__fprintf() sig 44130bf70e1c dwarves: Update e-mail address 327757975b94 dwarf_loader: Add URL for template tags description f4d5e21fd1b2 dwarf_loader: Tidy up template tags usage e12bf9999944 dwarf_loader: Do not hash unsupported tags 3afcfbec9e08 dwarf_loader: Add DW_TAG_GNU_formal_parameter_pack stub in process_function 55d9b20dbaf6 dwarf_loader: Ignore DW_TAG_dwarf_procedure when processing functions 45618c7ec122 dwarf_loader: Initial support for DW_TAG_unspecified_type 658a238b9890 dwarf_loader: Stop emitting warnings about DW_TAG_call_site 0fbb39291d59 dwarf_loader: Add support for DW_TAG_restrict_type 9df42c68265d dwarves: Initial support for rvalue_reference_type 8af5ccd86d21 dwarves: Use cus__fprintf_load_files_err() in the remaining tools 10515a7c4db7 dwarves: Introduce cus__fprintf_load_files_err() 0e6463635082 pahole: Show more informative message when errno is properly set on error 2566cc2c8715 pdwtags: Show proper error messages for files it can't handle 9f3f67e78679 dwarves: Fix cus__load_files() error return ae3a2720c3d3 dutil: Add ____ilog2_NaN declaration to silence compiler warning 0b81b5ad4743 Update version in CMakeLists.txt 79536f4f9587 cmake: Use INTERFACE_LINK_LIBRARIES 1decb1bc4a41 dwarf_loader: Check cu__find_type_by_ref result 956343d05a41 Add instructions on how to build with debug info e71353c3fa0a dwarf_loader: Ignore DW_TAG_dwarf_procedure 189695907242 dwarves_fprintf: Add the missing GNU_ suffix to DWARF_TAG_ created by the GNU project d973b1d5daf0 dwarf_fprintf: Handle DW_TAG_GNU_call_site{_parameter} c23eab4b1253 dwarf_loader: Print unknown tags as an hex number 943a0de0679a dwarves_fprintf: DW_TAG_mutable_type doesn't exist. a8e562a15767 dwarf_loader: Use obstack_zalloc when allocating tag fd3838ae9aa3 dwarves: Stop using 'self' 5ecf1aab9e10 dwarf_loader: Support DW_FORM_data{4,8} for reading class member offsets c4ccdd5ae63b dwarves_reorganize: Fix member type fixup e31fda3063e3 dwarves_reorganize: Fixup calculation of bytes needed for bitfield 1e461ec7e0e8 dwarves_fprintf: Fix printf types on 64bit linux 222f0067a9c3 dwarves_fprintf: Don't ignore virtual data members e512e3f9b36b dwarves: Update git url 8c6378fd8834 dwarves: Support static class data members a54515fa6ee4 dwarves: Stop using 'self' 6035b0d91f19 rpm: Add missing BuildRequires: zlib-devel be7b691756ff dwarf_loader: Don't stop processing after finding unsupported tag v1.10 Wed May 30 2012 . Initial DWARF4 support, by Tom Tromey . Add stubs for some new GNU Tags . Fix build on older systems . Fix a crash when pahole is called with -R -S, from Tal Kelrich v1.9: Ignore DW_TAG_template_{type,value}_parameter, fixing a bug reported at: https://bugzilla.redhat.com/show_bug.cgi?id=654471 More work is needed to properly support these tags. ----------------------------------------- After a long time without a new release because I was trying to get the CTF support completed, and due to the very strong gravity force in the Linux kernel perf tools, here it is 1.8, with lots of performance improvements, bug fixes and changes to better use these tools in scripts. For full details please take a look at the git changesets, repo available at: http://git.kernel.org/cgit/devel/pahole/pahole.git - Arnaldo pahole: . Allow list of structs to be passed to pahole. E.g.: 'pahole -C str_node,strings' Suggested by Zack Weinberg , for scripting. . Introduce --hex to print offsets and sizes in hexadecimal codiff: . Improve detection of removal and addition of members in structs . Detect changes in padding and the number of holes/bit_holes pfunct: . --no_parm_names Because CTF doesn't encodes the names of the parameters and I want to test the upcoming CTF function section code in ctftwdiff. . pfunct --addr Using an rbtree to find in which function the given addr is. libdwarves: . Greatly reduce the data structures footprint and lookup by recoding the IDs as short integers, that was done to facilitate support for CTF but benefited the core libraries greatly. . Handle GCC support for vector instructions So now it recognizes, as printed by pdwtags: 908 typedef int __m64 __attribute__ ((__vector_size__ (8))); size: 8 909 int array __attribute__ ((__vector_size__ (8))); size: 8 910 int array __attribute__ ((__vector_size__ (4))); size: 4 911 short int array __attribute__ ((__vector_size__ (2))); size: 2 912 char array __attribute__ ((__vector_size__ (1))); size: 1 . Destructors were added so that no leaks are left if this library is to be used in other tools that don't end the program when done using this lib. . Allow the tools to pass a callback that is used after loading each object file (CU/Compile Unit), so that we can more quickly find tags and stop the processing sooner, or at least delete the CU if it doesn't have anything needed by the tool. This _greatly_ speeded up most of the tools. . Tools now can pass a debug format "path", specifying the order it wants to try, so that if a file have both DWARF and CTF, specifying 'ctf,dwarf' will use the CTF info. . Now the formatting routines are in a separate file, dwarves_fprintf.c. This was done for organizational purposes but also to pave the way for multiple formatting backends, so that we can print, for instance, in CSV the structs, for easier scripting like done by several folks out there. . Handle volatile typedef bitfields, like: struct _GClosure { volatile guint ref_count:15; /* 0:17 4 */ volatile guint meta_marshal:1; /* 0:16 4 */ volatile guint n_guards:1; /* 0:15 4 */ . Load java 'interfaces' as a struct/class. . Fix buffer expansion bug, detected thanks to boost that provided things like: virtual int undefine(class grammar_helper > *); /* linkage=_ZN5boost6spirit4impl14grammar_helperINS0_7grammarINS_6detail5graph11dot_skipperENS0_14parser_contextINS0_5nil_tEEEEES6_NS0_7scannerINS0_10multi_passISt16istream_i */ . Allow optional addr information loading, speeding up some apps that don't use such addresses (or in modes where addrs aren't used) such as pahole. . Use a obstacks, speeding up apps as measured with the perf tools. . Support zero sized arrays in the middle of a struct. . Fix padding calculation in the reorganize routines. . Fix bitfield demotion in the reorganize routines. . Support "using" pointing to data members (C++). . Properly support pointers to const, reported by Jan Engelhardt : . Support more compact DW_AT_data_member_location form, pointed out by Mark Wielaard and reported by Mike Snitzer Experimental CTF support: libdwarves was reorganized so that it can support multiple debugging formats, with the first one being supported being the Compact C Type Format that comes from the OpenSolaris world. David S. Miller contributed an initial CTF decoder and from there I wrote an encoder. To test this a regression testing harness (regtest in the sources) that will take files with DWARF info and from there encode its contents in CTF in another ELF section in the same file (.SUN_ctf). Then it will decode both the DWARF and CTF sections and compare the results for pahole running with some new flags that cope with some subtleties in the way CTF encodes things. --flat_arrays We have just one dimension in CTF, with the total number of entries, in DWARF we can express this, but not in CTF: __u8 addr[0][6]; /* 4 0 */ So --flat_arrays will show it as: __u8 addr[0]; /* 4 0 */ --show_private_classes --fixup_silly_bitfields To cope with things like 'char foo:8' that since CTF has only the number of bits, can't be expressed as we don't know if it is a bitfield or just a char without the ':8' suffix. --first_obj_only Look only at the first object file in a file with multiple object files, like vmlinux. This is because the CTF support is not complete yet, needing the merging of types in multiple object files to be done. --classes_as_structs CTF has only a type for structs, not for classes like DWARF (DW_TAG_class_type is not present in CTF), so print them all as 'struct'. Running with the above limitations produce just a few mismatches, related to packed structs and enumerations and bitfields.