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2026-09-26elf-parse: add section flags, symbol binding and mapping helpersLorenzo Stoakes (ARM)
Extend elf-parse to be able to read the symbol table of vmlinux in kallsyms. This requires the ability to open ELF files in read-only mode, so provide elf_map_ro() to do so. It also requires accessors for section flags and symbol bindings, so provide these via shdr_flags() and sym_bind(). It's useful to be able to open an ELF file, map it, and then have easy access to its section headers, names and symbol table, so introduce struct elf_file to store this. In order to obtain this data also provide elf_open_ro() and elf_close(). Also, check for the file being an ELF file first in elf_parse(). This is the logical thing to check for first, but additionally prevents kallsyms from having to check this it self. Assisted-by: LLM Reviewed-by: Kees Cook <kees@kernel.org> Signed-off-by: Lorenzo Stoakes (ARM) <ljs@kernel.org> Link: https://patch.msgid.link/20260923-build-speedup-v4-7-73128809a4a4@kernel.org Signed-off-by: Nathan Chancellor <nathan@kernel.org>
2025-10-24sorttable: Move ELF parsing into scripts/elf-parse.[ch]Steven Rostedt
In order to share the elf parsing that is in sorttable.c so that other programs could use the same code, move it into elf-parse.c and elf-parse.h. Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nicolas Schier <nicolas.schier@linux.dev> Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Link: https://lore.kernel.org/20251022004452.752298788@kernel.org Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>