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* Prepare for 0.176Mark Wielaard2019-02-141-0/+7
| | | | | | | | | Set version to 0.176. Update NEWS and elfutils.spec.in. Update GPG-KEY. Regenerate po/*.po files. Signed-off-by: Mark Wielaard <mark@klomp.org>
* configure: Add new --enable-install-elfh option.Mark Wielaard2019-01-311-0/+4
| | | | | | | | | | | | | | We explicitly test (with system-elf-libelf) that our include headers work with the system elf.h header. But it might be helpful to install the elf.h file for a private install. Our elf.h header really is just a copy of the latest glibc elf.h. But it might be newer and include more constants than the system installed elf.h. Add a new configure option --enable-install-elfh to install elf.h. But warn when it is enabled for the default /usr or /usr/local prefix because it might clash with the glibc/system elf.h header in that case. Signed-off-by: Mark Wielaard <mark@klomp.org>
* Require gawk in maintainer modeRoss Burton2018-07-051-0/+4
| | | | | | gawk is required to build known_dwarf.h, so check for it in configure.ac. Signed-off-by: Ross Burton <ross.burton@intel.com>
* Prepare for 0.172.Mark Wielaard2018-06-111-0/+5
| | | | | | | | | | It has been only 10 days since the previous release and there are no functional changes compared to 0.171. The speedup of eu-readelf -N is pretty nice. And ~25 patches fix various bugs (hangs and crashes) in dealing with bad DWARF5 data. Most have been found by running the afl fuzzer on eu-readelf and various testcases. Signed-off-by: Mark Wielaard <mark@klomp.org>
* Prepare for 0.171.Mark Wielaard2018-06-011-0/+5
| | | | | | | Set version to 0.171. Update po/*.po files. Mention DWARF5, split dwarf and GNU DebugFission support in NEWS. Signed-off-by: Mark Wielaard <mark@klomp.org>
* libdwfl: Use process_vm_readv when available.Mark Wielaard2018-03-281-0/+4
| | | | | | | | | | If possible use process_vm_readv to read 4K blocks instead of fetching each word individually with ptrace. For unwinding this often means we only have to do one process_vm_readv of the stack instead of dozens of ptrace calls. There is one 4K cache per process, cleared whenever a thread is detached. Signed-off-by: Mark Wielaard <mark@klomp.org>
* Use fallthrough attribute.Joshua Watt2018-02-101-0/+4
| | | | | | | | | | | | | | | Use __attribute__ ((fallthrough)) to indicate switch case fall through instead of a comment. This ensures that the fallthrough warning is not triggered even if the file is pre-processed (hence stripping the comments) before it is compiled. The actual fallback implementation is hidden behind a FALLBACK macro in case the compiler doesn't support it. Finally, the -Wimplict-fallthrough warning was upgraded to only allow the attribute to satisfy it; a comment alone is no longer sufficient. Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
* lib: Remove md5 and sha1 implementations.Mark Wielaard2017-10-201-0/+4
| | | | | | Only the testcase md5-sha1-test used them. So also remove that testcase. Signed-off-by: Mark Wielaard <mark@klomp.org>
* Make sure packed structs follow the gcc memory layoutUlf Hermann2017-09-201-0/+5
| | | | | | | | | | | | | | gcc defaults to using struct layouts that follow the native conventions, even if __attribute__((packed)) is given. In order to get the layout we expect, we need to tell gcc to always use the gcc struct layout, at least for packed structs. To do this, we can use the gcc_struct attribute. This is important, not only for porting to windows, but also potentially for other platforms, as the bugs resulting from struct layout differences are rather subtle and hard to find. Signed-off-by: Ulf Hermann <ulf.hermann@qt.io>
* README: Add basic build instructions.Mark Wielaard2017-09-191-0/+4
| | | | Signed-off-by: Mark Wielaard <mark@klomp.org>
* Detect if symbol versioning is supportedUlf Hermann2017-08-181-0/+4
| | | | | | | If not, throw an error unless symbol versioning was explicitly disabled. Signed-off-by: Ulf Hermann <ulf.hermann@qt.io>
* Check if gcc complains about __attribute__ (visibility(..))Ulf Hermann2017-08-181-0/+5
| | | | | | | | | | | | | | | If so, define attribute_hidden to be empty. Also, use attribute_hidden in all places where we hide symbols. If this attribute is missing, it simply means that we cannot hide private symbols in the binary using attributes. This disables some optimizations and may increase the risk of symbol name clashes with other libraries, but is not fatal. However, we still employ linker version scripts to explicitly define the exported symbols. This serves much of the same purpose. Also, as all our symbols are prefixed with the library name, and "__" for private ones, the chance of clashes is low anyway. Signed-off-by: Ulf Hermann <ulf.hermann@qt.io>
* Check for -z,defs, -z,relro, -fPIC, -fPIE before using themUlf Hermann2017-08-181-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | Those flags are not available on all platforms, and omitting them when not available will not cause any harm. In particular: -z,defs disallows undefined symbols in object files. This option is unsupported if the target binary format enforces the same condition already. Furthermore it is only a compile time sanity check. When it is omitted, the same binary is produced. -z,relro instructs the loader to mark sections read-only after loading the library, where possible. This is a hardening mechanism. If it is unavailable, the functionality of the code is not affected in any way. -fPIC instructs the compiler to produce position independent code. While this is preferable to relocatable code, relocatable code also works and may even be faster. Relocatable code might just be loaded into memory multiple times for different processes. -fPIE is the same thing as -fPIC for executables rather than shared libraries. Signed-off-by: Ulf Hermann <ulf.hermann@qt.io>
* Prepare for 0.170.Mark Wielaard2017-08-021-0/+5
| | | | | | | Set version to 0.170. Update po/*.po files. Add some more user visible changes to NEWS. Signed-off-by: Mark Wielaard <mark@klomp.org>
* libdw: Add DW_MACRO constants and DW_MACRO_GNU compatibility defines.Mark Wielaard2017-08-021-0/+4
| | | | | | | | | | Accept version 5 .debug_macro format, which is identical to the GNU version 4 format. No real support yet for the new supplementary object file (sup) and indirect string references (strx). GCC doesn't generate them yet. readelf does recognize them, but doesn't try to decode them. dwarf_getmacros currently rejects the new formats. Signed-off-by: Mark Wielaard <mark@klomp.org>
* libdw: Handle DWARF5 immutable, packed and shared in dwarf_peel_type.Mark Wielaard2017-08-021-0/+4
| | | | | | | | | | Also update the documentation to explain that any type alias or modifier that doesn't modify, change the structural layout or the way to access the underlying type is peeled. Explicitly mention pointer and reference types as examples of modifiers that don't obey that rule and so aren't peeled. Signed-off-by: Mark Wielaard <mark@klomp.org>
* Handle DWARF5 defaulted member function encodings.Mark Wielaard2017-08-021-1/+2
| | | | | | | | | Add DW_DEFAULTED_no, DW_DEFAULTED_in_class and DW_DEFAULTED_out_of_class to dwarf.h. Print value (no, in_class or out_of_class) of DW_AT_defaulted in readelf. Signed-off-by: Mark Wielaard <mark@klomp.org>
* libdw: DWARF5 Add DW_CC_pass_by_reference and DW_CC_pass_by_reference.Mark Wielaard2017-08-021-0/+4
| | | | Signed-off-by: Mark Wielaard <mark@klomp.org>
* libdw: Add dwarf_default_lower_bound.Mark Wielaard2017-08-021-0/+4
| | | | | | | | | | Add dwarf_default_lower_bound to get the default lower bound for a language when not given as attribute for an subrange type. Implementation extracted from dwarf_aggregate_size. Add a test to check all known language codes are handled. Signed-off-by: Mark Wielaard <mark@klomp.org>
* libdw: DWARF5 Add new DW_LANG codes and default lower array bound.Mark Wielaard2017-08-021-2/+2
| | | | | | | | | | Add DW_LANG_OpenCL, DW_LANG_Modula3, DW_LANG_C_plus_plus_03, DW_LANG_OCaml, DW_LANG_Rust, DW_LANG_Swift, DW_LANG_Julia, DW_LANG_Dylan, DW_LANG_RenderScript and DW_LANG_BLISS to dwarf.h. Update default language array lower bounds in dwarf_aggregate_size.c. Signed-off-by: Mark Wielaard <mark@klomp.org>
* libdw: Add new DWARF5 character encodings.Mark Wielaard2017-08-021-1/+2
| | | | | | | Add DW_ATE_UCS and DW_ATE_ASCII for Fortran 2003 string kinds ASCII (ISO/IEC 646:1991) and ISO_10646 (UCS-4 in ISO/IEC 10646:2000). Signed-off-by: Mark Wielaard <mark@klomp.org>
* libdw: Add new DWARF5 tag constants.Mark Wielaard2017-08-021-1/+1
| | | | | | | | | | Add DW_TAG_coarray_type, DW_TAG_generic_subrange, DW_TAG_dynamic_type, DW_TAG_call_site, DW_TAG_call_site_parameter, DW_TAG_skeleton_unit, DW_TAG_immutable_type. Just the constants, no further interpretion yet. Signed-off-by: Mark Wielaard <mark@klomp.org>
* libdw: Add DWARF5 attributes.Mark Wielaard2017-08-021-0/+4
| | | | | | | | | | | | Add new DWARF5 attribute constant names to the attributes enum. Also add reserved comments between non-consecutive (reserved) numbers. Remove DW_AT_subscr_data, DW_AT_element_list and DW_AT_member from the enum list and turn them into compatibility defines because they are not part of DWARF2+. That way code that directly references them still compiles but they won't show up in known-dwarf.h. Signed-off-by: Mark Wielaard <mark@klomp.org>
* backends: Don't depend on linux/bpf.h to compile bpf disassembler.Mark Wielaard2017-07-241-0/+5
| | | | | | | | | We only need a few constants and one structure definition from linux/bpf. Just define those in a local lib/bpf.h file. This makes sure the bpf disassembler is always build and included even when elfutils is build on older GNU/Linux systems (and even on other platforms). Signed-off-by: Mark Wielaard <mark@klomp.org>
* strip: Add --keep-section=SECTION and --remove-section=SECTION.Mark Wielaard2017-07-171-0/+4
| | | | | | | | | | | | | | | | | | | | | Adds two new output options: --keep-section=SECTION Keep the named section. SECTION is an extended wildcard pattern. May be given more than once. --remove-section=SECTION Remove the named section. SECTION is an extended wildcard pattern. May be given more than once. Only non-allocated sections can be removed. The --remove-section was already partially implemented, but only for the .comment section. The short option -R is to be compatible with binutils. The new testcase makes sure that various combinations of kept/removed sections pull the correct dependencies into the output and/or debug files. https://bugzilla.redhat.com/show_bug.cgi?id=1465997 Signed-off-by: Mark Wielaard <mark@klomp.org>
* Prepare for 0.169.Mark Wielaard2017-05-051-0/+5
| | | | | | | Set version to 0.169. Update copyright year. Update po/*.po files. And add user visible changes to new 0.169 NEWS section. Signed-off-by: Mark Wielaard <mark@klomp.org>
* Add missing entries to .gitignoreUlf Hermann2017-04-261-0/+4
| | | | Signed-off-by: Ulf Hermann <ulf.hermann@qt.io>
* Check for existence of mempcpyUlf Hermann2017-02-171-0/+4
| | | | | | If it doesn't exist, provide a definition based on memcpy. Signed-off-by: Ulf Hermann <ulf.hermann@qt.io>
* Add -D_FORTIFY_SOURCE=2 to CFLAGS if possible.Mark Wielaard2017-02-141-0/+4
| | | | | | | | | Some distros now add -D_FORTIFY_SOURCE=2 by default and we have missed some issues in the past caught by it. Add it to CFLAGS if possible. The configure check will make sure that it doesn't conflict with any other CFLAGS already defined. Signed-off-by: Mark Wielaard <mark@klomp.org>
* Define PACKAGE_URL for older autoconf.Mark Wielaard2017-01-121-0/+4
| | | | | | | autoconf < 2.64 doesn't define PACKAGE_URL through AC_INIT. Define it ourselves if needed. Signed-off-by: Mark Wielaard <mark@klomp.org>
* Prepare for elfutils 0.168 release.Mark Wielaard2016-12-271-0/+5
| | | | Signed-off-by: Mark Wielaard <mark@klomp.org>
* http://elfutils.org/ is now hosted at http://sourceware.org/elfutils/Mark Wielaard2016-12-241-0/+11
| | | | | | | | | | | | | | | | | fedorahosted used to be our home, but we are now hosted at sourceware. Change the elfutils project home to http://elfutils.org/ Point hosted services (email, release, git, bug tracker and web pages) to https://sourceware.org/elfutils/ Move design notes from README to NOTES. Add URLs for home, releases, bugs, git and mailinglist to README. Make the --version output of all tools the same by using a common print_version function and update the publicly shown copyright holder to the elfutils developers. Signed-off-by: Mark Wielaard <mark@klomp.org>
* Only workaround fts.h if we have a bad version that doesn't handle LFS.Mark Wielaard2016-11-231-0/+5
| | | | | | | | | | Older versions of glibc included an fts implementation that didn't have Large File System support. We worked around that in linux-kernel-modules.c by including it early before config.h and then redefining some symbols to get the 64-bit versions. This is somewhat fragile and not necessary with newer glibc. If possible we want the 64bit fts version always. Signed-off-by: Mark Wielaard <mjw@redhat.com>
* Add GCC7 -Wimplicit-fallthrough support/fixes.Mark Wielaard2016-11-101-1/+6
| | | | | | | | | | | GCC7 will have a new -Wimplicit-fallthrough warning. It did catch one small buglet in elflint option procession. So it seems useful to enable to make sure all swatch case fallthroughs are deliberate. Add configure check to detect whether gcc support -Wimplicit-fallthrough and enable it. Add fixes and explicit fallthrough comments where necessary. Signed-off-by: Mark Wielaard <mjw@redhat.com>
* Do not depend on some non-POSIX features.Akihiko Odaki2016-10-131-0/+4
| | | | | | | | Define/open code memrchr, rawmemchr, powerof2 and TEMP_FAILURE_RETRY if not available through system headers. Signed-off-by: Akihiko Odaki <akihiko.odaki.4i@stu.hosei.ac.jp> Signed-off-by: Mark Wielaard <mjw@redhat.com>
* Prepare 0.167 release.Mark Wielaard2016-08-041-0/+5
| | | | Signed-off-by: Mark Wielaard <mjw@redhat.com>
* Remove eu-ld and unused code.Mark Wielaard2016-08-031-0/+5
| | | | | | | | Nobody has hacked on eu-ld in a very long time. It didn't really work. And we didn't install it by default in the spec file. Remove sources, the build rules and any (now) unused code. Signed-off-by: Mark Wielaard <mjw@redhat.com>
* Add support for BPFRichard Henderson2016-06-281-0/+4
| | | | Signed-off-by: Richard Henderson <rth@redhat.com>
* CONTRIBUTING: Extend patch, committer and maintainer guidelines.Mark Wielaard2016-06-211-0/+4
| | | | Signed-off-by: Mark Wielaard <mjw@redhat.com>
* config: Pass the compiler -Werror during warning detectionFilipe Brandenburger2016-05-031-0/+3
| | | | | | | | | | | | | | Otherwise the compilation prints a warning but exits with 0 return code. However, later during the compilation, when -Werror is enforced to about every file, the unsupported options start breaking the builds. Tested: Ran configure with clang-3.5 and built libelf/ tree with it. $ autoreconf -i $ ./configure CC=clang-3.5 ... $ make -C libelf Signed-off-by: Filipe Brandenburger <filbranden@google.com>
* config: Fix check for argp_parse to pass &argvFilipe Brandenburger2016-05-021-0/+4
| | | | | | | | | | | | | | | | | | | Right now it's passing a char* when it expects a char** instead. This usually produces a warning that may go unnoticed, but if CFLAGS contains -Werror, that breaks the ./configure run with the following error: $ ./configure CFLAGS=-Werror ... configure: WARNING: "libc does not have argp" checking for argp_parse in -largp... no configure: error: "no libargp found" Tested: Checked that after this fix, running ./configure CFLAGS=-Werror works as expected and argp_parse is correctly detected. Signed-off-by: Filipe Brandenburger <filbranden@google.com>
* Prepare 0.166 release.Mark Wielaard2016-03-311-0/+4
| | | | Signed-off-by: Mark Wielaard <mjw@redhat.com>
* config: Use --program-prefix=eu- by default.Mark Wielaard2016-03-021-0/+5
| | | | | | | | | | | | We want eu- as default program prefix if none was given by the user. But if the user explicitly provided --program-prefix="" then pretend it wasn't set at all (NONE). This makes sure all tools will be installed as eu-<program>. We want this default since most tools would normally conflict with the GNU binutils variants that have similar names. Signed-off-by: Mark Wielaard <mjw@redhat.com>
* config: Check for and use gcc -Wnull-dereference.Mark Wielaard2016-02-221-0/+4
| | | | | | -Wnull-dereference is new in GCC6 Signed-off-by: Mark Wielaard <mjw@redhat.com>
* config: Check for and use gcc -Wlogical-op and -Wduplicated-cond.Mark Wielaard2016-02-151-0/+5
| | | | | | | | | Both -Wlogical-op and -Wduplicated-cond may produce useful warnings. But we have to check them first. Older versions of gcc had a -Wlogical-op that warned on some constructs using macros that are not erronious. Only GCC6 has -Wduplicated-cond. Signed-off-by: Mark Wielaard <mjw@redhat.com>
* Prepare 0.165 release.Mark Wielaard2016-01-081-0/+5
| | | | Signed-off-by: Mark Wielaard <mjw@redhat.com>
* config: Add libelf and libdw pkg-config files.Mark Wielaard2016-01-051-0/+5
| | | | Signed-off-by: Mark Wielaard <mjw@redhat.com>
* Make make more silent.Mark Wielaard2016-01-051-0/+4
| | | | | | | Silent rules already are the default, but automake and make both still tell which directory is being entered/build. Disable printing from make. Signed-off-by: Mark Wielaard <mjw@redhat.com>
* Make zlib mandatory.Mark Wielaard2015-10-261-0/+4
| | | | | | Explicitly link libelf and libdw with -lz. Signed-off-by: Mark Wielaard <mjw@redhat.com>
* Prepare 0.164 release.Mark Wielaard2015-10-151-0/+5
| | | | Signed-off-by: Mark Wielaard <mjw@redhat.com>
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