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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-09-24 22:02:06 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-09-24 22:02:06 +0200 |
| commit | 68e5c7d4cefb66de3953a874e670ec8f1ce86a24 (patch) | |
| tree | 5eb1744dc6369517f05975ac24291765c4902cc0 /lib | |
| parent | Merge tag 'linux-cpupower-6.12-rc1-fixes' of git://git.kernel.org/pub/scm/lin... (diff) | |
| parent | kbuild: doc: replace "gcc" in external module description (diff) | |
| download | linux-68e5c7d4cefb66de3953a874e670ec8f1ce86a24.tar.xz linux-68e5c7d4cefb66de3953a874e670ec8f1ce86a24.zip | |
Merge tag 'kbuild-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Support cross-compiling linux-headers Debian package and kernel-devel
RPM package
- Add support for the linux-debug Pacman package
- Improve module rebuilding speed by factoring out the common code to
scripts/module-common.c
- Separate device tree build rules into scripts/Makefile.dtbs
- Add a new script to generate modules.builtin.ranges, which is useful
for tracing tools to find symbols in built-in modules
- Refactor Kconfig and misc tools
- Update Kbuild and Kconfig documentation
* tag 'kbuild-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (51 commits)
kbuild: doc: replace "gcc" in external module description
kbuild: doc: describe the -C option precisely for external module builds
kbuild: doc: remove the description about shipped files
kbuild: doc: drop section numbering, use references in modules.rst
kbuild: doc: throw out the local table of contents in modules.rst
kbuild: doc: remove outdated description of the limitation on -I usage
kbuild: doc: remove description about grepping CONFIG options
kbuild: doc: update the description about Kbuild/Makefile split
kbuild: remove unnecessary export of RUST_LIB_SRC
kbuild: remove append operation on cmd_ld_ko_o
kconfig: cache expression values
kconfig: use hash table to reuse expressions
kconfig: refactor expr_eliminate_dups()
kconfig: add comments to expression transformations
kconfig: change some expr_*() functions to bool
scripts: move hash function from scripts/kconfig/ to scripts/include/
kallsyms: change overflow variable to bool type
kallsyms: squash output_address()
kbuild: add install target for modules.builtin.ranges
scripts: add verifier script for builtin module range data
...
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index bc8faa4509e1..7315f643817a 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -573,6 +573,21 @@ config VMLINUX_MAP pieces of code get eliminated with CONFIG_LD_DEAD_CODE_DATA_ELIMINATION. +config BUILTIN_MODULE_RANGES + bool "Generate address range information for builtin modules" + depends on !LTO + depends on VMLINUX_MAP + help + When modules are built into the kernel, there will be no module name + associated with its symbols in /proc/kallsyms. Tracers may want to + identify symbols by module name and symbol name regardless of whether + the module is configured as loadable or not. + + This option generates modules.builtin.ranges in the build tree with + offset ranges (per ELF section) for the module(s) they belong to. + It also records an anchor symbol to determine the load address of the + section. + config DEBUG_FORCE_WEAK_PER_CPU bool "Force weak per-cpu definitions" depends on DEBUG_KERNEL |