-------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2024-9b002e32cb 2024-03-14 01:07:19.210390 -------------------------------------------------------------------------------- Name : dwarves Product : Fedora 39 Version : 1.26 Release : 1.fc39 URL : http://acmel.wordpress.com Summary : Debugging Information Manipulation Tools (pahole & friends) Description : dwarves is a set of tools that use the debugging information inserted in ELF binaries by compilers such as GCC, used by well known debuggers such as GDB, and more recent ones such as systemtap. Utilities in the dwarves suite include pahole, that can be used to find alignment holes in structs and classes in languages such as C, C++, but not limited to these. It also extracts other information such as CPU cacheline alignment, helping pack those structures to achieve more cache hits. These tools can also be used to encode and read the BTF type information format used with the Linux kernel bpf syscall, using 'pahole -J' and 'pahole -F btf'. A diff like tool, codiff can be used to compare the effects changes in source code generate on the resulting binaries. Another tool is pfunct, that can be used to find all sorts of information about functions, inlines, decisions made by the compiler about inlining, etc. One example of pfunct usage is in the fullcircle tool, a shell that drivers pfunct to generate compileable code out of a .o file and then build it using gcc, with the same compiler flags, and then use codiff to make sure the original .o file and the new one generated from debug info produces the same debug info. Pahole also can be used to use all this type information to pretty print raw data according to command line directions. Headers can have its data format described from debugging info and offsets from it can be used to further format a number of records. The btfdiff utility compares the output of pahole from BTF and DWARF to make sure they produce the same results. -------------------------------------------------------------------------------- Update Information: New release: v1.26 -------------------------------------------------------------------------------- ChangeLog: * Tue Feb 27 2024 Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> - 1.26-1 - New release: v1.26 - When expanding types using 'pahole -E' do it for union and struct typedefs and for enums too. - Print number of holes, bit holes and bit paddings in class member types. - Introduce --contains_enumerator=ENUMERATOR_NAME: - Fix pretty printing using DWARF, waiting for a CU with both class (-C) and a specified "type_enum". - Add support for DW_TAG_constant in the DWARF loader, first seen in Go DWARF. - Fix loading DW_TAG_subroutine_type generated by the Go compiler. - Fix loading of 32-bit signed enums from BTF. - Add 'pahole --btf_features' to allow consumers to specify an opt-in set of features they want to use in BTF encoding. - Parallelize loading BTF and DWARF, speeding up a bit btfdiff. - Do type expansion to cover "private" types and enumerations in btfdiff. * Wed Jan 24 2024 Fedora Release Engineering <releng@xxxxxxxxxxxxxxxxx> - 1.25-5 - Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild * Fri Jan 19 2024 Fedora Release Engineering <releng@xxxxxxxxxxxxxxxxx> - 1.25-4 - Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild * Wed Oct 11 2023 Viktor Malik <vmalik@xxxxxxxxxx> - 1.25-3 - Migrate license to SPDX -------------------------------------------------------------------------------- This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2024-9b002e32cb' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at https://fedoraproject.org/keys -------------------------------------------------------------------------------- -- _______________________________________________ package-announce mailing list -- package-announce@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to package-announce-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/package-announce@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
