fd9442f7b5
* elf.c (ZSTD_TABLE_*): Use elf_zstd_fse_baseline_entry. (ZSTD_ENCODE_BASELINE_BITS): Define. (ZSTD_DECODE_BASELINE, ZSTD_DECODE_BASEBITS): Define. (elf_zstd_literal_length_base): New static const array. (elf_zstd_match_length_base): Likewise. (struct elf_zstd_fse_baseline_entry): Define. (elf_zstd_make_literal_baseline_fse): New static function. (elf_zstd_make_offset_baseline_fse): Likewise. (elf_zstd_make_match_baseline_fse): Likewise. (print_table, main): Use elf_zstd_fse_baseline_entry. (elf_zstd_lit_table, elf_zstd_match_table): Likewise. (elf_zstd_offset_table): Likewise. (struct elf_zstd_seq_decode): Likewise. Remove use_rle and rle fields. (elf_zstd_unpack_seq_decode): Use elf_zstd_fse_baseline_entry, taking a conversion function. Convert RLE to FSE. (elf_zstd_literal_length_baseline): Remove. (elf_zstd_literal_length_bits): Remove. (elf_zstd_match_length_baseline): Remove. (elf_zstd_match_length_bits): Remove. (elf_zstd_decompress): Use elf_zstd_fse_baseline_entry. Rewrite and simplify main loop.
libbacktrace
A C library that may be linked into a C/C++ program to produce symbolic backtraces
Initially written by Ian Lance Taylor iant@golang.org.
This is version 1.0. It is likely that this will always be version 1.0.
The libbacktrace library may be linked into a program or library and used to produce symbolic backtraces. Sample uses would be to print a detailed backtrace when an error occurs or to gather detailed profiling information. In general the functions provided by this library are async-signal-safe, meaning that they may be safely called from a signal handler.
The libbacktrace library is provided under a BSD license. See the source files for the exact license text.
The public functions are declared and documented in the header file backtrace.h, which should be #include'd by a user of the library.
Building libbacktrace will generate a file backtrace-supported.h, which a user of the library may use to determine whether backtraces will work. See the source file backtrace-supported.h.in for the macros that it defines.
As of October 2020, libbacktrace supports ELF, PE/COFF, Mach-O, and XCOFF executables with DWARF debugging information. In other words, it supports GNU/Linux, *BSD, macOS, Windows, and AIX. The library is written to make it straightforward to add support for other object file and debugging formats.
The library relies on the C++ unwind API defined at https://itanium-cxx-abi.github.io/cxx-abi/abi-eh.html This API is provided by GCC and clang.