elfutils 0.196 released

Aaron Merey Fri, 14 Aug 2026 14:08:30 -0700

ELFUTILS 0.196 "Split Personality" - https://elfutils.org/


A new release of elfutils is available at:
ftp://sourceware.org/pub/elfutils/0.196/
or https://sourceware.org/elfutils/ftp/0.196/

Visit us on the Libera.Chat irc channel #elfutils

* NEWS *

debuginfod:

The $DEBUGINFOD_TIMEOUT environment variable is now enforced when
establishing a connection to a server.

libdw:

New functions dwarf_begin_type, dwarf_begin_elf_type and
dwarf_get_type plus new enum Dwarf_Type.  Used to select between plain
DWARF, split DWARF (.dwo/.dwp) and GNU LTO when opening a file.

Added support for DWARF5 supplementary files (.debug_sup) and
associated DW_FORM_ref_sup4/8 and DW_FORM_strp_sup forms.

Added support for split DWARF debug data when contained in the same
file as the skeleton.

libdwelf:

New functions dwelf_dwarf_debug_sup and dwelf_dwarf_debug_dwp for
querying .debug_sup and .debug_dwp section data.

libdwfl:

Now correctly handles Linux kernel module sections that are not
present in sysfs.

libdwfl_stacktrace:

New functions dwflst_arch_from_uname, dwflst_arch_expected_frame_nregs,
dwflst_arch_sp_dwarf_reg and dwflst_arch_sp_perf_reg providing
per-architecture constants.  The libdwfl_stacktrace interface is
experimental and may be subject to API/ABI changes.

srcfiles:

Now handles CU names and files from split DWARF.

stackprof:

New profiling tool for collecting systemwide stacktrace profiles.
Replaces the eu-stacktrace tool.  Requires a C++20 capable compiler.

stacktrace:

This experimental tool has been removed and replaced with eu-stackprof.

strip:

Fixed bug where a section's sh_link or sh_info reference could be
missing from the debug file.

version.h:

New macro _ELFUTILS_THREAD_SAFE added to <elfutils/version.h>.
Defined to 1 when the elfutils libraries are built with thread safety
support enabled.  Otherwise it is left undefined.  Thread safety
support is experimental and is not yet officially supported.

* GIT SHORTLOG *

Aaron Merey (9):
  src/strip.c: Unconditionally re-iterate when preserving sh_link/sh_info
  tests/Makefile.am: Add --track-destroy=yes to valgrind_cmd
  dwarf_getsrclines.c: Restore initialization of debug_str_offset
  riscv_disasm.c: Fix out-of-bounds reads
  debuginfod-client.c: Set CURLOPT_CONNECTTIMEOUT_MS
  version.h: Add _ELFUTILS_THREAD_SAFE
  dwarf_tag.c: Fix __libdw_findabbrev race condition
  Update src/.gitignore and tests/.gitignore
  Prepare for 0.196

Ekaterine Papava (1):
  po: Add Georgian (ka) translation

Frank Ch. Eigler (2):
  PR34309: debuginfod: support relative source paths for reproducible builds
  testsuite backtrace-child.c: Fix thread/spawn/coredump race condition.

Kane Wang (1):
  readelf: Cap stack allocation for bit-array core notes

Mark Wielaard (35):
  config: Remove empty /* */ comment from known-dwarf.awk
  libdwfl: Fix out of memory handling in link_map.c report_r_debug
  libdw: Check .debug_line header field minimum_instr_len fits unit data
  libebl: Handle calloc failure in ebl_sample_perf_regs_mapping
  debuginfod-client: Use CURLOPT_MAXREDIRS
  debuginfod: Don't trust x-debuginfod-size in debuginfod_validate_imasig
  libelf: Check uncompressed gnu size fits into d_size for ELF class
  elfcompress: Don't over allocate sections bitmap
  elfcompress: Fix off-by-one sanity check
  libelf: Get orig_addralign the same way for 32/64 bit ELF in elf_compress
  elfcompress: Handle shstrtab/symtab names more consistently
  elfcompress: Handle existing output files (symlinks)
  tests: Make elf-from-memory testcase work on big endian setups
  configure: Remove rawmemchr decl check
  libelf: Correct the size of the in memory datastructure (off-by-one)
  tests: Add ar header only test to ar-getarsym-mem
  tests: Enable valgrind for stack trace testcases
  readelf: Fix interpretation of offset_size_flag in print_cu_index_section
  libdw: Sanity check macros line_offset before reading
  libdw: Check there are any header bytes in str_offsets_base_off
  libdw: Only read CIE augmentation data if it is there
  libdw: Check there are any header bytes in rnglists
  libdw: Check there are any header bytes in loclists
  libdw: Fix __libdw_read_offset size in dwarf_getpubnames.c get_offsets
  tests: Generate core-ioperm-huge little endian core file on big endian
  libelf: Handle truncated symbol archive index
  backends: define strings for all sparc hwcap bits
  stacktrace: label followed by a declaration is a C23 extension
  build: Rename pic objects to _.os to support -gsplit-dwarf
  srcfiles: Handle CU names and files from split DWARF
  libdwelf: Add dwelf_dwarf_debug_dwp and dwelf_dwarf_debug_sup functions
  libdw,readelf: fully support DWARF5 supplementary files and forms
  libdw: Add Dwarf_Type (plain, dwo, gnu_lto) support for dwarf_begin
  libdw: Support using same file split DWARF
  libdw: Use dwelf_dwarf_debug_dwp in try_dwp_file

Matej Smycka (4):
  libdwfl: fix OOB read in elf_from_remote_memory phdr check
  debuginfod: Reject IMA signatures shorter than the signature header
  elfclassify: Fix invalid realloc when growing ar member path
  libelf: Bounds-check archive symbol index count on the mmap path

Naveed Khan (1):
  x86: Fix out-of-bounds read of register table in sample_perf_regs_mapping

Pengfei Li (1):
  libdwfl: Handle kernel module sections absent from sysfs

Sayed Kaif (8):
  x86: Fix out-of-bounds heap write in sample_perf_regs_mapping
  libdwfl: Skip segment that starts past contents_size in elf-from-memory
  libdw: Fix out-of-bounds write parsing .debug_macro opcode table
  libelf: Fix out-of-bounds read in elf_getarsym for unterminated symbol table
  libdw: Fix out-of-bounds read in dwarf_next_cfi CIE augmentation parsing
  libdw: Fix out-of-bounds read in CFI DW_CFA_advance_loc1 handling
  libdw: Fix out-of-bounds read in DW_FORM_indirect form length parsing
  libdw: Fix out-of-bounds read for oversized .debug_line header_length

Sergei Zimmerman (1):
  backends/i386_reloc.def: Fix entry for R_386_TLS_DESC

Serhei Makarov (8):
  eblinitreg_sample.c: guard ebl_set_initial_registers_sample
  configure.ac, src/: add C++20, add new stackprof tool
  tests/: add test suite for stackprof
  doc/stackprof.1: add man page and NEWS for stackprof
  src/stacktrace.c: remove in favour of stackprof
  PR34498 libdwfl_stacktace/dwflst_sample_frame.c: API for per-arch constants
  PR34498 stackprof: adopt new libdwflst API for per-arch constants
  dwflst_sample_frame.c: fix dwflst_arch_expected_frame_nregs

Sujal Tuladhar (1):
  readelf: Fix heap-buffer-overflow reading .debug_cu_index size table

Tiago de Paula (1):
  config: guard against unset variables in profile.sh

王强 (1):
  libelf: fix OOB read in elf_getarsym 32-bit archive index count

elfutils 0.196 released

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