Changes in Makefile

bf71940f - objtool: Hide unnecessary compiler error message

Mon, 03 Feb 2025 07:36:10 +0000

objtool: Hide unnecessary compiler error messageThe check for using old libelf prints an error message when libelf.h isnot available but does not abort. This may confuse so hide the compilererror message.Signed-off-by: David Engraf Link: https://lore.kernel.org/r/20250203073610.206000-1-david.engraf@sysgo.comSigned-off-by: Josh Poimboeuf List of files: /linux-6.15/tools/objtool/Makefile

42367eca - tools: Remove redundant quiet setup

Thu, 13 Feb 2025 21:06:22 +0000

tools: Remove redundant quiet setupQ is exported from Makefile.include so it is not necessary to manuallyset it.Reviewed-by: Jiri Olsa Signed-off-by: Charlie Jenkins Acked-by: Andrii Nakryiko Acked-by: Quentin Monnet Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Alexei Starovoitov Cc: Benjamin Tissoires Cc: Daniel Borkmann Cc: Daniel Lezcano Cc: Eduard Zingerman Cc: Hao Luo Cc: Ian Rogers Cc: Ingo Molnar Cc: Jiri Kosina Cc: John Fastabend Cc: Josh Poimboeuf Cc: KP Singh Cc: Lukasz Luba Cc: Mark Rutland Cc: Martin KaFai Lau Cc: Mykola Lysenko Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Rafael J. Wysocki Cc: Shuah Khan Cc: Song Liu Cc: Stanislav Fomichev Cc: Steven Rostedt (VMware) Cc: Yonghong Song Cc: Zhang Rui Link: https://lore.kernel.org/r/20250213-quiet_tools-v3-2-07de4482a581@rivosinc.comSigned-off-by: Arnaldo Carvalho de Melo List of files: /linux-6.15/tools/objtool/Makefile

32b50485 - objtool: Also include tools/include/uapi

Tue, 08 Oct 2024 23:47:17 +0000

objtool: Also include tools/include/uapiWhen building objtool against a sysroot that contains a stripped downversion 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) includeslinux/compiler_types.h directly. However, this gets resolved totools/include/linux/compiler_types.h, which is not expected to beincluded directly.To resolve this, I added tools/include/uapi to the include paths whenbuilding objtool. With this trick, linux/stddef.h is resolved totools/include/uapi/linux/stddef.h, which doesn't includelinux/compiler_types.h.Signed-off-by: HONG Yifan Signed-off-by: Josh Poimboeuf List of files: /linux-6.15/tools/objtool/Makefile

3c7266cd - objtool/LoongArch: Enable orc to be built

Mon, 11 Mar 2024 14:23:47 +0000

objtool/LoongArch: Enable orc to be builtImplement arch-specific init_orc_entry(), write_orc_entry(), reg_name(),orc_type_name(), print_reg() and orc_print_dump(), then set BUILD_ORC asy 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 List of files: /linux-6.15/tools/objtool/Makefile

cd955bdd - objtool: Fix HOSTCC flag usage

Thu, 26 Jan 2023 19:06:06 +0000

objtool: Fix HOSTCC flag usageHOSTCC is always wanted when building objtool. Setting CC to HOSTCChappens after tools/scripts/Makefile.include is included, meaningflags (like CFLAGS) are set assuming say CC is gcc, but then it can belater set to HOSTCC which may be clang. tools/scripts/Makefile.includeis needed for host set up and common macros in objtool'sMakefile. Rather than override the CC variable to HOSTCC, just pass CCas HOSTCC to the sub-makes of Makefile.build, the libsubcmd builds andalso to the linkage step.Signed-off-by: Ian Rogers Link: https://lore.kernel.org/r/20230126190606.40739-4-irogers@google.comSigned-off-by: Josh Poimboeuf List of files: /linux-6.15/tools/objtool/Makefile

8c4526ca - objtool: Properly support make V=1

Thu, 26 Jan 2023 19:06:05 +0000

objtool: Properly support make V=1The Q variable was being used but never correctly set up. Add thesetting up and use in place of @.Signed-off-by: Ian Rogers Link: https://lore.kernel.org/r/20230126190606.40739-3-irogers@google.comSigned-off-by: Josh Poimboeuf List of files: /linux-6.15/tools/objtool/Makefile

bdb8bf7d - objtool: Install libsubcmd in build

Thu, 26 Jan 2023 19:06:04 +0000

objtool: Install libsubcmd in buildIncluding from tools/lib can create inadvertent dependencies. Installlibsubcmd in the objtool build and then include the headers fromthere.Signed-off-by: Ian Rogers Link: https://lore.kernel.org/r/20230126190606.40739-2-irogers@google.comSigned-off-by: Josh Poimboeuf List of files: /linux-6.15/tools/objtool/Makefile

4bc78005 - objtool: Remove libsubcmd.a when make clean

Wed, 11 May 2022 08:37:50 +0000

objtool: Remove libsubcmd.a when make cleanThe 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 List of files: /linux-6.15/tools/objtool/Makefile

f193c32c - objtool: Remove inat-tables.c when make clean

Wed, 11 May 2022 08:37:49 +0000

objtool: Remove inat-tables.c when make cleanWhen build objtool on x86, the generated file inat-tables.c is inarch/x86/lib instead of arch/x86, use the correct dir to remove itwhen 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 List of files: /linux-6.15/tools/objtool/Makefile

b51277eb - objtool: Ditch subcommands

Mon, 18 Apr 2022 16:50:27 +0000

objtool: Ditch subcommandsObjtool has a fairly singular focus. It runs on object files and doesvalidations and transformations which can be combined in various ways.The subcommand model has never been a good fit, making it awkward tocombine and remove options.Remove the "check" and "orc" subcommands in favor of a more traditionalcmdline option model. This makes it much more flexible to use, andeasier 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 List of files: /linux-6.15/tools/objtool/Makefile

d5ea4fec - kbuild: Allow kernel installation packaging to override pkg-config

Fri, 01 Apr 2022 23:18:02 +0000

kbuild: Allow kernel installation packaging to override pkg-configAdd HOSTPKG_CONFIG to allow tooling that builds the kernel to overridewhat pkg-config and parameters are used.Signed-off-by: Chun-Tse Shao Reviewed-by: Nick Desaulniers Signed-off-by: Masahiro Yamada List of files: /linux-6.15/tools/objtool/Makefile

5c816641 - kbuild: replace $(if A,A,B) with $(or A,B)

Fri, 11 Feb 2022 05:14:11 +0000

kbuild: replace $(if A,A,B) with $(or A,B)$(or ...) is available since GNU Make 3.81, and useful to shorten thecode in some places.Covert as follows: $(if A,A,B) --> $(or A,B)This patch also converts: $(if A, A, B) --> $(or A, B)Strictly speaking, the latter is not an equivalent conversion becauseGNU Make keeps spaces after commas; if A is not empty, $(if A, A, B)expands to " A", while $(or A, B) expands to "A".Anyway, preceding spaces are not significant in the code hunks I touched.Signed-off-by: Masahiro Yamada Reviewed-by: Nicolas Schier List of files: /linux-6.15/tools/objtool/Makefile

ab4e0744 - objtool: Refactor ORC section generation

Thu, 17 Dec 2020 21:02:42 +0000

objtool: Refactor ORC section generationDecouple ORC entries from instructions. This simplifies thecontrol/data flow, and is going to make it easier to support alternativeinstructions which change the stack layout.Signed-off-by: Josh Poimboeuf List of files: /linux-6.15/tools/objtool/Makefile

7786032e - objtool: Rework header include paths

Thu, 12 Nov 2020 23:03:32 +0000

objtool: Rework header include pathsCurrently objtool headers are being included either by their base nameor included via ../ from a parent directory. In case of a base name usage: #include "warn.h" #include "arch_elf.h"it does not make it apparent from which directory the file comes from.To make it slightly better, and actually to avoid name clashes some archspecific files have "arch_" suffix. And files from an arch folder haveto revert to including via ../ e.g: #include "../../elf.h"With additional architectures support and the code base growth there isa need for clearer headers naming scheme for multiple reasons:1. to make it instantly obvious where these files come from (objtool itself / objtool arch|generic folders / some other external files),2. to avoid name clashes of objtool arch specific headers, potential obtool arch generic headers and the system header files (there is /usr/include/elf.h already),3. to avoid ../ includes and improve code readability.4. to give a warm fuzzy feeling to developers who are mostly kernel developers and are accustomed to linux kernel headers arranging scheme.Doesn't this make it instantly obvious where are these files come from? #include #include And doesn't it look nicer to avoid ugly ../ includes? Which alsoguarantees this is elf.h from the objtool and not /usr/include/elf.h. #include This patch defines and implements new objtool headers arrangingscheme. Which is:- all generic headers go to include/objtool (similar to include/linux)- all arch headers go to arch/$(SRCARCH)/include/arch (to get arch prefix). This is similar to linux arch specific "asm/*" headers but we are not abusing "asm" name and calling it what it is. This also helps to prevent name clashes (arch is not used in system headers or kernel exports).To bring objtool to this state the following things are done:1. current top level tools/objtool/ headers are moved into include/objtool/ subdirectory,2. arch specific headers, currently only arch/x86/include/ are moved into arch/x86/include/arch/ and were stripped of "arch_" suffix,3. new -I$(srctree)/tools/objtool/include include path to make includes like possible,4. rewriting file includes,5. make git not to ignore include/objtool/ subdirectory.Signed-off-by: Vasily Gorbik Acked-by: Peter Zijlstra (Intel) Acked-by: Masami Hiramatsu Signed-off-by: Josh Poimboeuf List of files: /linux-6.15/tools/objtool/Makefile

c8a950d0 - tools: Factor HOSTCC, HOSTLD, HOSTAR definitions

Tue, 10 Nov 2020 16:43:05 +0000

tools: Factor HOSTCC, HOSTLD, HOSTAR definitionsSeveral Makefiles in tools/ need to define the host toolchain variables.Move their definition to tools/scripts/Makefile.includeSigned-off-by: Jean-Philippe Brucker Signed-off-by: Andrii Nakryiko Acked-by: Jiri Olsa Acked-by: Rafael J. Wysocki Link: https://lore.kernel.org/bpf/20201110164310.2600671-2-jean-philippe@linaro.org List of files: /linux-6.15/tools/objtool/Makefile

2486baae - objtool: Allow nested externs to enable BUILD_BUG()

Mon, 05 Oct 2020 15:50:28 +0000

objtool: Allow nested externs to enable BUILD_BUG()Currently BUILD_BUG() macro is expanded to smth like the following: do { extern void __compiletime_assert_0(void) __attribute__((error("BUILD_BUG failed"))); if (!(!(1))) __compiletime_assert_0(); } while (0);If used in a function body this obviously would produce build errorswith -Wnested-externs and -Werror.Build objtool with -Wno-nested-externs to enable BUILD_BUG() usage.Signed-off-by: Vasily Gorbik Signed-off-by: Josh Poimboeuf List of files: /linux-6.15/tools/objtool/Makefile

66734e32 - objtool: Define 'struct orc_entry' only when needed

Tue, 25 Aug 2020 12:47:42 +0000

objtool: Define 'struct orc_entry' only when neededImplementation of ORC requires some definitions that are currentlyprovided by the target architecture headers. Do not depend on thesedefinitions when the orc subcommand is not implemented.This avoid requiring arches with no orc implementation to provide dummyorc definitions.Signed-off-by: Julien Thierry Reviewed-by: Miroslav Benes Signed-off-by: Josh Poimboeuf List of files: /linux-6.15/tools/objtool/Makefile

0decf1f8 - objtool: Enable compilation of objtool for all architectures

Tue, 19 May 2020 20:55:33 +0000

objtool: Enable compilation of objtool for all architecturesObjtool currently only compiles for x86 architectures. This isfine as it presently does not support tooling for otherarchitectures. However, we would like to be able to convert otherkernel tools to run as objtool sub commands because they tooprocess ELF object files. This will allow us to convert toolssuch as recordmcount to use objtool's ELF code.Since much of recordmcount's ELF code is copy-paste code to/froma variety of other kernel tools (look at modpost for example) thismeans that if we can convert recordmcount we can convert more.We define weak definitions for subcommand entry functions and other weakdefinitions for shared functions critical to building existingsubcommands. These return 127 when the command is missing which signifytools that do not exist on all architectures. In this case the "check"and "orc" tools do not exist on all architectures so we only add themfor x86. Future changes adding support for "check", to arm64 forexample, can then modify the SUBCMD_CHECK variable when building forarm64.Objtool is not currently wired in to KConfig to be built for otherarchitectures because it's not needed for those architectures andthere are no commands it supports other than those for x86. As morecommand support is enabled on various architectures the necessaryKConfig changes can be made (e.g. adding "STACK_VALIDATION") totrigger building objtool.[ jpoimboe: remove aliases, add __weak macro, add error messages ]Cc: Julien Thierry Signed-off-by: Matt Helsley Signed-off-by: Josh Poimboeuf List of files: /linux-6.15/tools/objtool/Makefile

6f8ca676 - objtool: Split out arch-specific CFI definitions

Fri, 27 Mar 2020 15:28:46 +0000

objtool: Split out arch-specific CFI definitionsSome CFI definitions used by generic objtool code have no reason to varyfrom one architecture to another. Keep those definitions in genericcode and move the arch-specific ones to a new arch-specific header.Signed-off-by: Julien Thierry Acked-by: Peter Zijlstra (Intel) Reviewed-by: Miroslav Benes Signed-off-by: Josh Poimboeuf Signed-off-by: Ingo Molnar List of files: /linux-6.15/tools/objtool/Makefile

aa584727 - objtool: Always do header sync check

Fri, 27 Mar 2020 15:28:38 +0000

objtool: Always do header sync checkCurrently, the check of tools files against kernel equivalent is onlydone after every object file has been built. This means one might fixbuild issues against outdated headers without seeing a warning aboutthis.Check headers before any object is built. Also, make it part of aFORCE'd recipe so every attempt to build objtool will report theoutdated headers (if any).Signed-off-by: Julien Thierry Acked-by: Peter Zijlstra (Intel) Reviewed-by: Miroslav Benes Signed-off-by: Josh Poimboeuf Signed-off-by: Ingo Molnar List of files: /linux-6.15/tools/objtool/Makefile