linux/tools/objtool/Makefile, branch for-next

objtool: Also include tools/include/uapi

2024-10-17T22:13:06Z

When building objtool against a sysroot that contains a stripped down version of the UAPI headers, the following error happens: In file included from arch/x86/decode.c:10: In file included from .../tools/arch/x86/include/asm/insn.h:10: In file included from /include/asm/byteorder.h:9: In file included from /include/linux/byteorder/little_endian.h:15: In file included from /include/linux/stddef.h:9: In file included from .../tools/include/linux/compiler_types.h:36: .../tools/include/linux/compiler-gcc.h:3:2: error: "Please don't include directly, include instead." 3 | #error "Please don't include directly, include instead." | ^ 1 error generated. As hinted by the error, this is because /include/linux/stddef.h (a stripped-down version of uapi/include/linux/stddef.h) includes linux/compiler_types.h directly. However, this gets resolved to tools/include/linux/compiler_types.h, which is not expected to be included directly. To resolve this, I added tools/include/uapi to the include paths when building objtool. With this trick, linux/stddef.h is resolved to tools/include/uapi/linux/stddef.h, which doesn't include linux/compiler_types.h. Signed-off-by: HONG Yifan Signed-off-by: Josh Poimboeuf

objtool/LoongArch: Enable orc to be built

2024-03-11T14:23:47Z

Implement arch-specific init_orc_entry(), write_orc_entry(), reg_name(), orc_type_name(), print_reg() and orc_print_dump(), then set BUILD_ORC as y to build the orc related files. Co-developed-by: Jinyang He Signed-off-by: Jinyang He Co-developed-by: Youling Tang Signed-off-by: Youling Tang Signed-off-by: Tiezhu Yang Signed-off-by: Huacai Chen

objtool: Fix HOSTCC flag usage

2023-02-01T17:15:18Z

HOSTCC is always wanted when building objtool. Setting CC to HOSTCC happens after tools/scripts/Makefile.include is included, meaning flags (like CFLAGS) are set assuming say CC is gcc, but then it can be later set to HOSTCC which may be clang. tools/scripts/Makefile.include is needed for host set up and common macros in objtool's Makefile. Rather than override the CC variable to HOSTCC, just pass CC as HOSTCC to the sub-makes of Makefile.build, the libsubcmd builds and also to the linkage step. Signed-off-by: Ian Rogers Link: https://lore.kernel.org/r/20230126190606.40739-4-irogers@google.com Signed-off-by: Josh Poimboeuf

objtool: Properly support make V=1

2023-01-31T00:28:16Z

The Q variable was being used but never correctly set up. Add the setting up and use in place of @. Signed-off-by: Ian Rogers Link: https://lore.kernel.org/r/20230126190606.40739-3-irogers@google.com Signed-off-by: Josh Poimboeuf

objtool: Install libsubcmd in build

2023-01-31T00:27:46Z

Including from tools/lib can create inadvertent dependencies. Install libsubcmd in the objtool build and then include the headers from there. Signed-off-by: Ian Rogers Link: https://lore.kernel.org/r/20230126190606.40739-2-irogers@google.com Signed-off-by: Josh Poimboeuf

Merge tag 'kbuild-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

2022-05-26T19:09:50Z

Pull Kbuild updates from Masahiro Yamada: - Add HOSTPKG_CONFIG env variable to allow users to override pkg-config - Support W=e as a shorthand for KCFLAGS=-Werror - Fix CONFIG_IKHEADERS build to support toybox cpio - Add scripts/dummy-tools/pahole to ease distro packagers' life - Suppress false-positive warnings from checksyscalls.sh for W=2 build - Factor out the common code of arch/*/boot/install.sh into scripts/install.sh - Support 'kernel-install' tool in scripts/prune-kernel - Refactor module-versioning to link the symbol versions at the final link of vmlinux and modules - Remove CONFIG_MODULE_REL_CRCS because module-versioning now works in an arch-agnostic way - Refactor modpost, Makefiles * tag 'kbuild-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (56 commits) genksyms: adjust the output format to modpost kbuild: stop merging *.symversions kbuild: link symbol CRCs at final link, removing CONFIG_MODULE_REL_CRCS modpost: extract symbol versions from *.cmd files modpost: add sym_find_with_module() helper modpost: change the license of EXPORT_SYMBOL to bool type modpost: remove left-over cross_compile declaration kbuild: record symbol versions in *.cmd files kbuild: generate a list of objects in vmlinux modpost: move *.mod.c generation to write_mod_c_files() modpost: merge add_{intree_flag,retpoline,staging_flag} to add_header scripts/prune-kernel: Use kernel-install if available kbuild: factor out the common installation code into scripts/install.sh modpost: split new_symbol() to symbol allocation and hash table addition modpost: make sym_add_exported() always allocate a new symbol modpost: make multiple export error modpost: dump Module.symvers in the same order of modules.order modpost: traverse the namespace_list in order modpost: use doubly linked list for dump_lists modpost: traverse unresolved symbols in order ...

objtool: Remove libsubcmd.a when make clean

2022-05-12T14:28:35Z

The file libsubcmd.a still exists after make clean, remove it. Signed-off-by: Tiezhu Yang Signed-off-by: Josh Poimboeuf Link: https://lore.kernel.org/r/1652258270-6278-3-git-send-email-yangtiezhu@loongson.cn

objtool: Remove inat-tables.c when make clean

2022-05-12T14:28:05Z

When build objtool on x86, the generated file inat-tables.c is in arch/x86/lib instead of arch/x86, use the correct dir to remove it when make clean. $ cd tools/objtool $ make [...] GEN arch/x86/lib/inat-tables.c [...] Signed-off-by: Tiezhu Yang Signed-off-by: Josh Poimboeuf Link: https://lore.kernel.org/r/1652258270-6278-2-git-send-email-yangtiezhu@loongson.cn

objtool: Ditch subcommands

2022-04-22T10:32:01Z

Objtool has a fairly singular focus. It runs on object files and does validations and transformations which can be combined in various ways. The subcommand model has never been a good fit, making it awkward to combine and remove options. Remove the "check" and "orc" subcommands in favor of a more traditional cmdline option model. This makes it much more flexible to use, and easier to port individual features to other arches. Signed-off-by: Josh Poimboeuf Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Miroslav Benes Link: https://lkml.kernel.org/r/5c61ebf805e90aefc5fa62bc63468ffae53b9df6.1650300597.git.jpoimboe@redhat.com

kbuild: Allow kernel installation packaging to override pkg-config

2022-04-05T08:03:31Z

Add HOSTPKG_CONFIG to allow tooling that builds the kernel to override what pkg-config and parameters are used. Signed-off-by: Chun-Tse Shao Reviewed-by: Nick Desaulniers Signed-off-by: Masahiro Yamada