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* Merge tag 'elfutils-0.174'Ulf Hermann2018-10-111-0/+4
|\ | | | | | | | | | | elfutils 0.174 release Change-Id: Ibcbdfca61cf0b65391ab6d0ad00f18ba61027e07
| * 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>
* | Merge tag 'elfutils-0.173'Ulf Hermann2018-07-131-0/+35
|\| | | | | | | | | | | elfutils 0.173 release Change-Id: I83dc56dd15c26fe7acf4ce73c29df65b8b65e757
| * Prepare for 0.172.elfutils-0.172Mark 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.elfutils-0.171Mark 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>
* | Merge tag 'elfutils-0.170'Ulf Hermann2017-08-171-0/+36
|\| | | | | | | | | | | elfutils 0.170 release Change-Id: I37d03645902b9f0a9fb708af1551db8843537799
| * Prepare for 0.170.elfutils-0.170Mark 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>
* | Merge tag 'elfutils-0.169'QtCreator4.5.1QtCreator4.5.0-rc1QtCreator4.5.0QtCreator4.4.1QtCreator4.4.0-rc1QtCreator4.4.0-beta1QtCreator4.4.04.54.4Ulf Hermann2017-05-081-3/+8
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: ChangeLog backends/ChangeLog config/ChangeLog lib/ChangeLog libasm/ChangeLog libcpu/ChangeLog libdw/ChangeLog libdwfl/ChangeLog libdwfl/derelocate.c libdwfl/linux-kernel-modules.c libebl/ChangeLog libelf/ChangeLog src/ChangeLog tests/ChangeLog Change-Id: I3b7ced947c6498290aaae27443985b84531f0bcd
| * Prepare for 0.169.elfutils-0.169Mark 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>
* | Provide build rules for a compatibility libraryUlf Hermann2017-05-081-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | We need to export open(), close(), malloc(), and free() from the C library we are using so that we can handle resources passed to and from elfutils correctly. For example, on Windows, calling free() on memory malloc()'d with a different C library will not work. In addition, having __cxa_demangle from the GNU libstdc++ available is very helpful, so we include that, too. Change-Id: I8e47e8f313fb3ffcc18309dadabf24acf36465f0 Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
* | Skip deleted test if fork(2) is unavailableUlf Hermann2017-05-081-0/+4
| | | | | | | | | | Change-Id: Ib52e92c34c5bd387b1e6310bb42d9102a639f262 Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
* | Check for existence of GNU-style strerror_rUlf Hermann2017-05-051-0/+4
| | | | | | | | | | | | | | | | If we don't have it, we don't translate system error codes to strings in dwfl_error.c. Change-Id: I829616cfba787d778c3273f2042512739df91d81 Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
* | Skip fchown, fchmod, fadvise, fallocate if functions are unavailableUlf Hermann2017-05-041-0/+5
| | | | | | | | | | | | | | | | | | | | | | If fchmod or fchown are unavailable, then the file permission model is likely to be different from what we expect there. posix_fallocate is a rather fragile affair already on linux, and not guaranteed to do anything useful. If it's not available, the result will be the same as when it's available and unreliable. fadvise is an optimization. Change-Id: I28a77e976a0198cf80397b45eb1bc8cfb30664f5 Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
* | Add our own tdestroy if search.h exposes a node_t structUlf Hermann2017-05-041-0/+5
| | | | | | | | | | | | | | | | | | | | | | tdestroy is not necessarily available from search.h, but we need it. gnulib cannot help us here as it will detect search.h to be available and functional in that case. However, some search.h expose a node_t struct which can be used to implement tdestroy. If that is the case, add an implementation to libgnu.a. Change-Id: I983f3aeb6b9090d2b24cbc01fe0790d2d0c96824 Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
* | Check for existence of GNU-style basename()Ulf Hermann2017-05-041-0/+4
| | | | | | | | | | | | | | If it doesn't exist, add an implementation to libgnu.a and config.h. Change-Id: Ice0356030dd666d61f8a582ad09a74c843b19add Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
* | Define unlocked io functions to locked ones if they are unavailableUlf Hermann2017-05-041-0/+4
| | | | | | | | | | | | | | The locked IO functions will still do the job, albeit a bit slower. Change-Id: I65c2b6aaa00374302aff3bcf4852a252e1eefd17 Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
* | Check native binary formatUlf Hermann2017-05-021-0/+4
| | | | | | | | | | | | | | | | | | | | If our native binary format is not ELF, there is no point in doing the textrel check and we have to exclude some tests that compile source code with the native compiler and then check something on the resulting binary with elfutils. Change-Id: Ib9c6b63481b40fa07dd741c1bb9dcb5d5a2ac6d1 Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
* | Generalize library namesUlf Hermann2017-04-281-0/+5
| | | | | | | | | | | | | | | | | | On windows library names end with ".dll" and the prefix "lib" us usually omitted. Take this into account and also drop the $(EXEEXT) workaround. We don't need to use noinst_PROGRAMS as there is also noinst_DATA. Change-Id: I7e4ba2432811d5ad85051ea0c9d5674eabf79b3c Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
* | Check if gcc complains about __attribute__ (visibility(..))Ulf Hermann2017-04-281-0/+5
| | | | | | | | | | | | | | | | If so, define attribute_hidden to be empty. Also, use attribute_hidden in all places where we hide symbols. Change-Id: I37353459710dbbd1c6c6c46110514fc18515c814 Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
* | Check for -z,defs, -z,relro, -fPIC, -fPIE before using themUlf Hermann2017-04-281-0/+5
| | | | | | | | | | | | | | | | | | On windows those aren't needed because the link results are no ELF files and all code is position independent anyway. gcc then complains about them, which is in turn caught by -Werror. Change-Id: Ie3d600b7c430698fc3d867a986a4d48f7ad1bbec Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
* | Drop handrolled or #ifdef'ed libc replacementsUlf Hermann2017-04-281-0/+4
| | | | | | | | | | | | | | | | | | mempcpy, memrchr, rawmemchr, and argp are provided by gnulib now. We don't need to define them locally and we don't need to search for an external libargp. Change-Id: I131ca4bc2d77c597b99c296c28259a3600e5d1b5 Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
* | Add gnulib modules to replace missing libc functionalityUlf Hermann2017-04-271-0/+7
| | | | | | | | | | | | | | | | | | | | This enables us to build a fully featured elfutils package on systems with reduced C libraries, such as windows. All the modules are built into libgnu.a, which is then linked into all binaries if --enable-gnulib is given on the configure line. Change-Id: I743fd22172bc85d9f10dcc3dad8eb921f462b554 Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
* | Add missing entries to .gitignoreUlf Hermann2017-04-271-0/+4
|/ | | | | Change-Id: I8c8d91521f30863eb19497cb1d9f7ce8649a81ee Reviewed-by: Christian Kandeler <christian.kandeler@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.elfutils-0.168Mark 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>
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