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* eu-stacktrace WIP: default to mode 'naive'upstream/users/serhei/eu-stacktraceSerhei Makarov13 hours1-2/+2
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* eu-stacktrace WIP configury: sysprof-N/sysprof-capture-types.hSerhei Makarov2024-02-022-13/+46
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* eu-stacktrace WIP: optional debuginfo callbacks as in stack.cSerhei Makarov2024-01-261-2/+22
| | | | This is an #ifdef option since it's really of dubious utility.
* eu-stacktrace WIP: additional tweak to diagnosticsSerhei Makarov2024-01-261-3/+7
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* eu-stacktrace WIP: more module diagnosticsSerhei Makarov2024-01-251-2/+31
| | | | | These were helpful for debugging the latest issues, but are perhaps a bit hacky. Placing them within an #ifdef for the time being.
* eu-stacktrace WIP fixes: accept a full sample of 18 registersSerhei Makarov2024-01-251-7/+12
| | | | This significantly improves our results.
* eu-stacktrace WIP: verbose,debug options to control diagnosticsSerhei Makarov2024-01-221-72/+121
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* eu-stacktrace WIP: fix sysprof_init_dwflSerhei Makarov2024-01-181-10/+20
| | | | Some of the data was not being reset properly on a new sample.
* eu-stacktrace WIP: print summary diagnostics at the end of the runSerhei Makarov2024-01-181-0/+31
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* eu-stacktrace WIP fixes: introduce a frame limitSerhei Makarov2024-01-181-0/+4
| | | | | Rarely, the unwinder can loop indefinitely. Guard against this, similarly to the code in stack.c.
* eu-stacktrace WIP fixes: dwfl_report_endSerhei Makarov2024-01-121-0/+7
| | | | | There are several things to improve to get parity with eu-stack in terms of CFI handling; this is the first fix.
* eu-stacktrace WIP: minor formatting fixupSerhei Makarov2023-12-111-3/+4
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* eu-stacktrace WIP: initial version of Dwfl caching, print commSerhei Makarov2023-12-111-17/+144
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* eu-stacktrace WIP: improve error msg when write offset < 0Serhei Makarov2023-12-011-3/+10
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* eu-stacktrace WIP: assemble and output the callchain frameSerhei Makarov2023-11-231-8/+52
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* eu-stacktrace WIP: prefer uint8_t * to unsigned char *Serhei Makarov2023-11-231-11/+12
| | | | Consistent with sysprof style (via sysprof-capture-types.h).
* eu-stacktrace WIP: introduce 'naive' unwinder mode, very initial codeSerhei Makarov2023-11-161-10/+394
| | | | | | | Still a number of pieces missing: - recycle Dwfl structs sensibly - create and output callchain frame - compare to baseline sysprof unwinding, improve data quality
* eu-stacktrace WIP: update SysprofCaptureStackUser formatSerhei Makarov2023-11-081-0/+11
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* eu-stacktrace WIP: add libdw to Makefile.amSerhei Makarov2023-11-081-1/+1
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* eu-stacktrace WIP: add SysprofCaptureStackUser declarationsSerhei Makarov2023-10-021-1/+21
| | | | | | Adding these declarations as a fallback saves some fuss, since eu-stacktrace can then be built with distro-provided sysprof-4 headers.
* eu-stacktrace WIP: fix header for sysprof packet parserSerhei Makarov2023-10-021-2/+1
| | | | (the separate skip_frame and peek_frame functions are not being used)
* eu-stacktrace WIP: sysprof packet parser for passthroughSerhei Makarov2023-09-031-26/+362
| | | | Separate and byte-swap the packets as done by sysprof-capture-reader.
* README.eu-stacktrace: add link to discussion threadSerhei Makarov2023-05-081-5/+10
| | | | Also fixed a number of incorrectly named PERF_EVENT_* constants.
* README.eu-stacktrace: fix typo in prev commitSerhei Makarov2023-05-031-1/+1
| | | | | | | Updated example usage: - mkfifo /tmp/test.fifo - eu-stacktrace </tmp/test.fifo >test.syscap & - sysprof-cli --use-fifo=/tmp/test.fifo test.syscap
* eu-stacktrace WIP: default stdin/stdout ("-") for --input/--outputSerhei Makarov2023-05-032-8/+12
| | | | | | | Updated example usage: - mkfifo /tmp/test.fifo - eu-stacktrace </tmp/test.fifo >output=test.syscap & - sysprof-cli --use-fifo=/tmp/test.fifo test.syscap
* README.eu-stacktrace: update for passthrough pipe demoSerhei Makarov2023-05-031-1/+45
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* eu-stacktrace WIP: simple passthrough for sysprofSerhei Makarov2023-05-021-10/+47
| | | | | | | | | | | Works with the sysprof serhei/samples-via-fifo patchset [1]. Example usage: - mkfifo /tmp/test.fifo - eu-stacktrace --input=/tmp/test.fifo --output=test.syscap & - sysprof-cli --use-fifo=/tmp/test.fifo test.syscap [1]: https://git.sr.ht/~serhei/sysprof-experiments/log/serhei/samples-via-fifo
* eu-stacktrace WIP: include sysprof-capture-types.hSerhei Makarov2023-04-032-0/+31
| | | | | | This header defines the Sysprof data format; we could make it optional through configury, but for now the prototype does not support any other data format.
* eu-stacktrace WIP: command line argsSerhei Makarov2023-04-032-2/+140
| | | | | | | | eu-stacktrace is (will be) a utility to process a stream of stack samples (such as those obtained from PERF_EVENT_SAMPLE) into a stream of stack traces (such as those obtained from PERF_EVENT_CALLCHAIN), freeing various profiling utilities from having to implement their own backtracing logic.
* LoongArch: implemented a basic machine flag checkAlexey Sheplyakov2023-03-202-0/+8
| | | | | | | | | | | | | | | | | | | | With this patch I can use eu-elflint to verify LoongArch ELF binaries. Previously eu-elflint was complaining about invalid machine flags: $ ./src/elflint --gnu-ld ./src/elflint invalid machine flags: 0x43 $ echo $? 1 * backends/loongarch_symbol.c (loongarch_init): Hook machine_flag_check. * backends/loongarch_symbol.c (loongarch_machine_flag_check): New function. https://sourceware.org/bugzilla/show_bug.cgi?id=30251 Signed-off-by: Alexey Sheplyakov <asheplyakov@basealt.ru>
* debuginfod-client.c: Skip empty file creation for cancelled queriesAaron Merey2023-03-172-3/+8
| | | | | | | | | | | | | | | | | Empty files in the client cache are used to indicate that contacted servers could not find a requested resource. Future queries for this resource will not be attempted until the cache_miss_s duration has passed. Currently these empty files are also created when a query is cancelled through the client's progressfn. This can occur, for example, when a user cancels a download with ctrl-c. This prevents user-cancelled queries from being retried promptly without having to modify cache_miss_s. Fix this by skipping the creation of an empty cache file when progressfn cancels a query. Signed-off-by: Aaron Merey <amerey@redhat.com>
* tests: skip '(null)' symname frames in backtrace testsMark Wielaard2023-03-051-0/+8
| | | | | | | | | | | | Some setups might have some frames for unknown (null) functions in the thread backtrace. Skip these frames instead of failing immediately. * tests/backtrace.c (callback_verify): Check and skip nulls_seen. https://sourceware.org/bugzilla/show_bug.cgi?id=29176 Signed-off-by: Mark Wielaard <mark@klomp.org>
* configure.ac contains BashismsMark Wielaard2023-03-051-2/+2
| | | | | | | | | | | | | | | | | | | | | | | Autoconf scripts are supposed to be written in POSIX-compatible shell language. elfutils commits 0ffe2874e75d48cb88936e119e5284ff2bf664d9 and 3fa98a6f29b0f370e32549ead7eb897c839af980 introduced Bashisms to configure.ac that cause errors when /bin/sh is not Bash. Example error when /bin/sh is Dash: ./configure: 8748: test: xyes: unexpected operator The cause of the error is the use of a non-existent == operator in expressions passed to the 'test' built-in command. POSIX shell specifies only an = operator for testing string equality. * configure.ac: Replace == by = in use_msan and enable_demangler comparisons. https://sourceware.org/bugzilla/show_bug.cgi?id=30196 Reported-by: Matt Whitlock <sourceware@mattwhitlock.name> Signed-off-by: Mark Wielaard <mark@klomp.org>
* Fix static build when zstd is enabled for libelfMark Wielaard2023-03-033-3/+3
| | | | | | | | | | | | | | | | | When doing a static build (as with --enable-gcov) the build fails because the executables aren't linked with -lzstd. Also the run-debuginfod-query-retry.sh test relies on libdebuginfod.so.1 which isn't there. Fix by adding $(zstd_LIBS) to the static libelf lines and using the debuginfod-find executable itself in the testcase. * src/Makefile.am (libelf): When BUILD_STATIC add $(zstd_LIBS) * tests/Makefile.am (libelf): Likewise. * tests/run-debuginfod-query-retry.sh: Use debuginfod-find instead of libdebuginfod.so.1 Signed-off-by: Mark Wielaard <mark@klomp.org>
* Prepare for 0.189elfutils-0.189Mark Wielaard2023-03-039-3721/+3813
| | | | | | | | | Set version to 0.189 Update NEWS and elfutils.spec.in Set copyright year in configure.ac and printversion. Regenerate po/*.po files. Signed-off-by: Mark Wielaard <mark@klomp.org>
* libelf: Document and make ELFCOMPRESS_ZSTD usable with old system elf.hMark Wielaard2023-03-034-5/+25
| | | | | | | | Make sure that even if the system elf.h doesn't have ELF_COMPRESS_ZSTD defined it can still be used as constant. Also update libelf.h documentation and add new feature to NEWS. Signed-off-by: Mark Wielaard <mark@klomp.org>
* readelf: Fix use-after-free ebl pointer issueMark Wielaard2023-03-032-2/+8
| | | | | | | | | | | | | | | | | | | | | With -flto gcc 13 sees that we use the ebl pointer after closing and freeing it. In function ‘process_elf_file’, inlined from ‘process_dwflmod’ at readelf.c:818:3: readelf.c:1070:6: error: pointer ‘ebl_18’ used after ‘free’ [-Werror=use-after-free] 1070 | if (pure_ebl != ebl) | ^ In function ‘ebl_closebackend’, inlined from ‘process_elf_file’ at readelf.c:1068:3, inlined from ‘process_dwflmod’ at readelf.c:818:3: ../libebl/eblclosebackend.c:47:7: note: call to ‘free’ here 47 | free (ebl); | ^ Fix by only calling ebl_closebackend after using it in the comparison. Signed-off-by: Mark Wielaard <mark@klomp.org>
* libdw: Fix dwarf_getscopes memory leak on errorMark Wielaard2023-02-282-1/+8
| | | | | | | | | | When there is an error in dwarf_getscopes after the initial scopes have been allocated, e.g. when looking for the inlined scopes, then the scopes would leak. Fix this by explicitly free the scopes on error. https://sourceware.org/bugzilla/show_bug.cgi?id=29434 Signed-off-by: Mark Wielaard <mark@klomp.org>
* libcpu: Remove the need of NMNES by using enumYonggang Luo2023-02-235-21/+60
| | | | | Signed-off-by: Yonggang Luo <luoyonggang@gmail.com> Signed-off-by: Mark Wielaard <mark@klomp.org>
* libdw: Use elf_rawdata when checking .debug sectionMark Wielaard2023-02-232-2/+7
| | | | | | | .debug sections are raw bytes and don't need conversion even when host and file have different endian order. Signed-off-by: Mark Wielaard <mark@klomp.org>
* libelf: memmove any extra bytes left by elf_cvt_gnuhash conversionMark Wielaard2023-02-232-2/+14
| | | | | | | | Otherwise some undefined bytes might be left in the buffer. Now they might still be not useful, but at least they are as defined in the file. Signed-off-by: Mark Wielaard <mark@klomp.org>
* NEWS: Add old version code namesMark Wielaard2023-02-232-26/+30
| | | | Signed-off-by: Mark Wielaard <mark@klomp.org>
* Update m4 files from autoconf-archiveMark Wielaard2023-02-212-62/+503
| | | | | | | Update m4/ax_check_compile_flag.m4 and m4/ax_cxx_compile_stdcxx.m4 to autoconf-archive-2023.02.20. Signed-off-by: Mark Wielaard <mark@klomp.org>
* configure: Check for and -Wuse-after-free=3 when availableMark Wielaard2023-02-214-1/+27
| | | | | | | gcc already includes -Wuse-after-free=2 in -Wall. -Wuse-after-free=3 also warns for indeterminate pointers in equality expressions. Signed-off-by: Mark Wielaard <mark@klomp.org>
* libasm: Fix use-after-free issue with circular single linked list cleanupMark Wielaard2023-02-212-8/+14
| | | | | | | | | | | | | | | | Pointed out by gcc 12 with -Wuse-after-free=3 In function ‘free_section’ asm_end.c:552:17: error: pointer ‘data’ used after ‘free’ [-Werror=use-after-free] 552 | while (oldp != scnp->content); | ~~~~~^~~~~~~~~~~~~~~~ asm_end.c:550:9: note: call to ‘free’ here 550 | free (oldp); | ^~~~~~~~~~~ Fix by freeing scnp->content last. Signed-off-by: Mark Wielaard <mark@klomp.org>
* NEWS: Mention linking with libstdc++ or using --disable-demanglerMark Wielaard2023-02-171-0/+3
| | | | Signed-off-by: Mark Wielaard <mark@klomp.org>
* libdw: check that DWARF strings are null-terminatedAleksei Vetrov2023-02-173-1/+52
| | | | | | | | | | | | It is expected from libdw to return strings that are null-terminated to avoid overflowing ELF data. * Add calculation of a safe prefix inside string sections, where any string will be null-terminated. * Check if offset overflows the safe prefix in dwarf_formstring. Signed-off-by: Aleksei Vetrov <vvvvvv@google.com>
* configure: Error when demangler is enabled, but libstdc++ support isn'tMark Wielaard2023-02-172-1/+7
| | | | | | | | | There have been a couple of cases where demangler support has been accidentially been disabled because libstdc++ wasn't there/installed during build. Make it an error if --disable-demangler isn't explicitly given. Signed-off-by: Mark Wielaard <mark@klomp.org>
* doc: Add .TP before -g in debuginfod.8Mark Wielaard2023-02-142-0/+5
| | | | | | Fixes indentation of -g option. Signed-off-by: Mark Wielaard <mark@klomp.org>
* libdw: Correct data end checkfor deref_type operand in dwarf_getlocationMark Wielaard2023-02-142-1/+6
| | | | | | | | In __libdw_intern_expression we checked for one byte too many. We only need one byte for the size and (at least one) for the uleb128 DIE reference. Signed-off-by: Mark Wielaard <mark@klomp.org>
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