dwarves 1.22-1 source package in Ubuntu
Changelog
dwarves (1.22-1) unstable; urgency=low * New upstream release. Changes since 1.20: pahole: - Allow encoding BTF to a separate BTF file (detached) instead of to a new ".BTF" ELF section in the file being encoded (vmlinux usually). - Introduce -j/--jobs option to specify the number of threads to use. Without arguments means one thread per CPU. So far used for the DWARF loader, will be used as well for the BTF encoder. - Show all different types with the same name, not just the first one found. - Introduce sorted type output (--sort), needed with multithreaded DWARF loading, to use with things like 'btfdiff' that expects the output from DWARF and BTF types to be comparable using 'diff'. - Stop assuming that reading from stdin means pretty printing as this broke pre-existing scripts, introduce a explicit --prettify command line option. - Improve type resolution for the --header command line option. - Disable incomplete CTF encoder, this needs to be done using the external libctf library. - Do not consider the ftrace filter when encoding BTF for kernel functions. - Add --kabi_prefix to avoid deduplication woes when using _RH_KABI_REPLACE() - Add --with_flexible_array to show just types with flexible arrays. DWARF Loader: - Multithreaded loading, requires elfutils >= 0.178. - Lock calls to non-thread safe elfutils' libdw functions (dwarf_decl_file() and dwarf_decl_line()) - Change hash table size to one that performs better with current typical vmlinux files. - Allow tweaking the hash table size from the command line. - Stop allocating memory for strings obtained from libdw, just defer freeing the Dwfl handler so that references to its strings can be safely kept. - Use a frontend cache for the latest lookup result. - Allow ignoring some DWARF tags when loading for encoding BTF, as BTF doesn't have equivalents for things like DW_TAG_inline_expansion and DW_TAG_label. - Allow ignoring some DWARF tag attributes, such as DW_AT_alignment, not used when encoding BTF. - Do not query for non-C attributes when loading a C language CU (compilation unit). BTF encoder: - Preparatory work for multithreaded encoding, the focus for 1.23. btfdiff: - Support diffing against a detached BTF file, e.g.: 'btfdiff vmlinux vmlinux.btf' - Support multithreaded DWARF loading, using the new pahole --sort option to have the output from both BTF and DWARF sorted and thus comparable via 'diff'. Build: - Support building with libc libraries lacking either obstacks or argp, such as Alpine Linux's musl libc. - Support systems without getconf() to obtain the data cacheline size, such as musl libc. - Add a buildcmd.sh for test builds, tested using the same set of containers used for testing the Linux kernel perf tools. - Enable selecting building with a shared libdwarves library or statically. - Allow one to use the libbpf package found in distributions instead of with the accompanying libbpf git submodule. Cleanups: - Address lots of compiler warnings accumulated by not using -Wextra, it'll be added in the next release after allowing not to use it to build libbpf. - Address covscan report issues. Documentation: - Improve the --nr_methods/-m pahole man page entry. - Clarify that currently --nr_methods doesn't work together witn -C. * Refresh patches. * Drop patch no_shared_no_ebl, can do without it. * Build-Depends on linux-libc-dev (>= 5.14) for BTF_KIND_FLOAT. * Rename source package to dwarves. Closes: #705969. * Rename binary package to pahole and add a transitional dummy package. * Patch pahole manpage to fix groff's warning. * Configure gbp to sign tags by default. * Remove superfluous file patterns from debian/copyright. -- Domenico Andreoli <email address hidden> Tue, 19 Oct 2021 23:31:29 +0200
Upload details
- Uploaded by:
- Thomas Girard
- Uploaded to:
- Sid
- Original maintainer:
- Thomas Girard
- Architectures:
- any all
- Section:
- misc
- Urgency:
- Low Urgency
See full publishing history Publishing
Series | Published | Component | Section |
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Downloads
File | Size | SHA-256 Checksum |
---|---|---|
dwarves_1.22-1.dsc | 1.7 KiB | 229b2f391c75bc8da0fcbaa9c034f00e3907dd14dffb8a29ebd87c7d2f92248c |
dwarves_1.22.orig.tar.xz | 900.4 KiB | 8bcba48be39da2868142440dc2ee7f1d7b99ffec8095e3a1afb280dc1a7c63df |
dwarves_1.22-1.debian.tar.xz | 14.8 KiB | fe723ffc12385e20ef03ea07ccd371a775ae3c06ab7c82304ee1e2183bf7d7dc |
No changes file available.
Binary packages built by this source
- dwarves: set of advanced DWARF utilities - transitional package
This is a "dummy" package that depends on the newly named pahole.
- pahole: set of advanced DWARF utilities
This package contains tools that use the DWARF debugging information
inserted in ELF binaries by the compiler. This information is used by
debuggers (e.g. GDB), and other tools such as systemtap.
.
Utilities in the dwarves suite include:
.
- pahole: finds alignment holes in structs and classes in languages
such as C/C++, CPU cacheline alignment. Helps repack those structures
to achieve more cache hits.
- codiff: a diff like tool to compare the effects changes in source
code generate on the resulting binaries
- pfunct: displays all sorts of information about functions, inlines, etc.
- pdwtags: pretty-prints DWARF information
- pglobal: lists global symbols
- prefcnt: counts DWARF tags usage
- syscse: system call sign extender
- dtagnames: lists tag names
- pahole-dbgsym: debug symbols for pahole