kernel/linux.git/tools/objtool/builtin-check.c, branch v6.19.11

objtool: Add wide output for disassembly

2025-11-24T19:40:48+00:00

Add the --wide option to provide a wide output when disassembling. With this option, the disassembly of alternatives is displayed side-by-side instead of one above the other. Signed-off-by: Alexandre Chartre Signed-off-by: Peter Zijlstra (Intel) Acked-by: Josh Poimboeuf Link: https://patch.msgid.link/20251121095340.464045-30-alexandre.chartre@oracle.com

objtool: Add the --disas= action

2025-11-21T14:30:12+00:00

Add the --disas= actions to disassemble the specified functions. The function pattern can be a single function name (e.g. --disas foo to disassemble the function with the name "foo"), or a shell wildcard pattern (e.g. --disas foo* to disassemble all functions with a name starting with "foo"). Signed-off-by: Alexandre Chartre Signed-off-by: Peter Zijlstra (Intel) Acked-by: Josh Poimboeuf Link: https://patch.msgid.link/20251121095340.464045-18-alexandre.chartre@oracle.com

objtool: Add option to trace function validation

2025-11-21T14:30:09+00:00

Add an option to trace and have information during the validation of specified functions. Functions are specified with the --trace option which can be a single function name (e.g. --trace foo to trace the function with the name "foo"), or a shell wildcard pattern (e.g. --trace foo* to trace all functions with a name starting with "foo"). Signed-off-by: Alexandre Chartre Signed-off-by: Peter Zijlstra (Intel) Acked-by: Josh Poimboeuf Link: https://patch.msgid.link/20251121095340.464045-11-alexandre.chartre@oracle.com

objtool: Set minimum xxhash version to 0.8

2025-11-18T08:59:25+00:00

XXH3 is only supported starting with xxhash 0.8. Enforce that. Fixes: 0d83da43b1e1 ("objtool/klp: Add --checksum option to generate per-function checksums") Closes: https://lore.kernel.org/SN6PR02MB41579B83CD295C9FEE40EED6D4FCA@SN6PR02MB4157.namprd02.prod.outlook.com Reported-by: Michael Kelley Signed-off-by: Josh Poimboeuf Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Michael Kelley Tested-by: Michael Kelley Link: https://patch.msgid.link/7227c94692a3a51840278744c7af31b4797c6b96.1762990139.git.jpoimboe@kernel.org

objtool/klp: Add the debian-based package name of xxhash to the hint

2025-10-22T11:51:11+00:00

Add the debian package name for the devel version of the xxHash package "libxxhash-dev". Signed-off-by: Borislav Petkov (AMD) Link: https://patch.msgid.link/20251017194732.7713-1-bp@kernel.org

objtool/klp: Add --debug-checksum= to show per-instruction checksums

2025-10-14T21:50:18+00:00

Add a --debug-checksum= option to the check subcommand to print the calculated checksum of each instruction in the given functions. This is useful for determining where two versions of a function begin to diverge. Acked-by: Petr Mladek Tested-by: Joe Lawrence Signed-off-by: Josh Poimboeuf

objtool/klp: Add --checksum option to generate per-function checksums

2025-10-14T21:50:17+00:00

In preparation for the objtool klp diff subcommand, add a command-line option to generate a unique checksum for each function. This will enable detection of functions which have changed between two versions of an object file. Acked-by: Petr Mladek Tested-by: Joe Lawrence Signed-off-by: Josh Poimboeuf

objtool: Add elf_create_file()

2025-10-14T21:46:49+00:00

Add interface to enable the creation of a new ELF file. Acked-by: Petr Mladek Tested-by: Joe Lawrence Signed-off-by: Josh Poimboeuf

objtool: Reindent check_options[]

2025-10-14T21:46:48+00:00

Bring the cmdline check_options[] array back into vertical alignment for better readability. Acked-by: Petr Mladek Tested-by: Joe Lawrence Signed-off-by: Josh Poimboeuf

objtool: Resurrect --backup option

2025-10-14T21:46:48+00:00

The --backup option was removed with the following commit: aa8b3e64fd39 ("objtool: Create backup on error and print args") ... which tied the backup functionality to --verbose, and only for warnings/errors. It's a bit inelegant and out of scope to tie that to --verbose. Bring back the old --backup option, but with the new behavior: only on warnings/errors, and print the args to make it easier to recreate. Suggested-by: Peter Zijlstra Acked-by: Petr Mladek Tested-by: Joe Lawrence Signed-off-by: Josh Poimboeuf