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Ard Biesheuvel ac4f06789b kbuild: Create intermediate vmlinux build with relocations preserved 
The imperative paradigm used to build vmlinux, extract some info from it
or perform some checks on it, and subsequently modify it again goes
against the declarative paradigm that is usually employed for defining
make rules.

In particular, the Makefile.postlink files that consume their input via
an output rule result in some dodgy logic in the decompressor makefiles
for RISC-V and x86, given that the vmlinux.relocs input file needed to
generate the arch-specific relocation tables may not exist or be out of
date, but cannot be constructed using the ordinary Make dependency based
rules, because the info needs to be extracted while vmlinux is in its
ephemeral, non-stripped form.

So instead, for architectures that require the static relocations that
are emitted into vmlinux when passing --emit-relocs to the linker, and
are subsequently stripped out again, introduce an intermediate vmlinux
target called vmlinux.unstripped, and organize the reset of the build
logic accordingly:

- vmlinux.unstripped is created only once, and not updated again
- build rules under arch/*/boot can depend on vmlinux.unstripped without
  running the risk of the data disappearing or being out of date
- the final vmlinux generated by the build is not bloated with static
  relocations that are never needed again after the build completes.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
 		2025-03-17 00:29:50 +09:00
..
atomic locking/atomic: scripts: fix ${atomic}_sub_and_test() kerneldoc 2024-06-05 15:52:34 +02:00
bash-completion kbuild: add Kbuild bash completion 2025-03-15 21:22:52 +09:00
basic fixdep: use xmalloc() 2024-09-01 20:34:49 +09:00
clang-tools gen_compile_commands.py: remove code for '\#' replacement 2025-03-15 21:16:21 +09:00
coccinelle coccinelle: misc: add secs_to_jiffies script 2025-01-12 20:21:01 -08:00
dtc dt: dt-extract-compatibles: Extract compatibles from function parameters 2024-09-05 10:17:03 -05:00
dummy-tools kbuild: dummy-tools: pretend we understand -fpatchable-function-entry 2023-11-01 23:24:56 +09:00
gcc-plugins gcc-plugins: randstruct: Remove GCC 4.7 or newer requirement 2024-08-05 14:34:23 -07:00
gdb scripts/gdb: fix aarch64 userspace detection in get_current_task 2025-02-01 03:53:24 -08:00
gendwarfksyms gendwarfksyms: Add a separate pass to resolve FQNs 2025-03-15 21:16:11 +09:00
genksyms genksyms: factor out APP for the ST_NORMAL state 2025-03-15 21:16:21 +09:00
include scripts: import more list macros 2024-10-07 02:12:27 +09:00
ipe scripts: ipe: polgen: remove redundant close and error exit path 2024-11-19 13:57:03 -08:00
kconfig kconfig: remove unnecessary cast in sym_get_string() 2025-03-15 21:16:21 +09:00
ksymoops
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mod modpost: use strstarts() to clean up parse_source_files() 2025-03-15 21:16:22 +09:00
package kbuild: deb-pkg: add debarch for ARCH=loongarch64 2025-03-15 21:19:44 +09:00
selinux Remove stale generated 'genheaders' file 2025-01-31 19:49:17 -08:00
tracing scripts: make python shebangs specific about desired version 2025-03-15 21:19:44 +09:00
.gitignore lib: packing: add pack_fields() and unpack_fields() 2024-12-11 20:13:00 -08:00
Kbuild.include kbuild: add $(objtree)/ prefix to some in-kernel build artifacts 2024-11-27 09:38:27 +09:00
Kconfig.include kbuild: rust: add `CONFIG_RUSTC_LLVM_VERSION` 2024-10-13 22:22:28 +02:00
Lindent
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Makefile Kbuild updates for v6.14 2025-01-31 12:07:07 -08:00
Makefile.asm-headers kbuild: fix rebuild of generic syscall headers 2024-07-18 10:01:55 -07:00
Makefile.autofdo AutoFDO: Enable machine function split optimization for AutoFDO 2024-11-27 09:38:27 +09:00
Makefile.btf kbuild,bpf: Pass make jobs' value to pahole 2024-11-11 20:00:21 -08:00
Makefile.build kbuild: remove EXTRA_*FLAGS support 2025-03-15 21:16:21 +09:00
Makefile.clang sparc/build: Add SPARC target flags for compiling with clang 2024-11-16 09:52:56 +01:00
Makefile.clean kbuild: change working directory to external module directory with M= 2024-11-28 08:10:23 +09:00
Makefile.compiler kbuild: rust: add rustc-min-version support function 2025-03-15 21:19:32 +09:00
Makefile.debug kbuild: rust: use `-Zdebuginfo-compression` 2024-04-02 17:41:22 +02:00
Makefile.defconf kbuild: suppress stdout from merge_config for silent builds 2025-01-10 23:01:21 +09:00
Makefile.dtbinst kbuild: Install dtb files as 0644 in Makefile.dtbinst 2024-06-26 00:18:57 +09:00
Makefile.dtbs kbuild: move non-boot built-in DTBs to .rodata section 2024-09-30 20:42:52 +09:00
Makefile.extrawarn kbuild: move -fzero-init-padding-bits=all to the top-level Makefile 2025-03-15 21:19:44 +09:00
Makefile.gcc-plugins
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Makefile.headersinst
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Makefile.host kbuild: support building external modules in a separate build directory 2024-11-28 08:11:55 +09:00
Makefile.kasan kbuild: rust: Enable KASAN support 2024-09-16 18:04:37 +02:00
Makefile.kcov
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Makefile.kcsan
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Makefile.kmsan
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Makefile.lib kbuild: Create intermediate vmlinux build with relocations preserved 2025-03-17 00:29:50 +09:00
Makefile.modfinal kbuild: re-enable KCSAN for autogenerated *.mod.c intermediaries 2024-11-28 08:11:55 +09:00
Makefile.modinst kbuild: Fix signing issue for external modules 2025-01-18 08:52:09 +09:00
Makefile.modpost modpost: Allow extended modversions without basic MODVERSIONS 2025-01-11 02:36:32 +09:00
Makefile.package kbuild: rpm-pkg: disable kernel-devel package when cross-compiling 2024-10-31 21:40:46 +09:00
Makefile.propeller kbuild: Fix Propeller build option 2024-11-27 09:38:27 +09:00
Makefile.randstruct
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Makefile.ubsan ubsan: Reintroduce signed overflow sanitizer 2024-02-20 20:44:49 -08:00
Makefile.userprogs kbuild: support 'userldlibs' syntax 2023-11-01 23:26:01 +09:00
Makefile.vdsoinst more s390 updates for 6.10 merge window 2024-05-21 12:09:36 -07:00
Makefile.vmlinux kbuild: Create intermediate vmlinux build with relocations preserved 2025-03-17 00:29:50 +09:00
Makefile.vmlinux_o kbuild: generate offset range data for builtin modules 2024-09-20 09:21:43 +09:00
as-version.sh
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asn1_compiler.c
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bloat-o-meter scripts/bloat-o-meter: count weak symbol sizes 2023-08-21 13:46:25 -07:00
bootgraph.pl
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bpf_doc.py bpf: Allow specifying bpf_fastcall attribute for BPF helpers 2024-10-03 17:47:53 -07:00
build-version kbuild: move init/build-version to scripts/ 2024-07-16 01:08:37 +09:00
cc-can-link.sh
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cc-version.sh
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check-git
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check-sysctl-docs scripts: check-sysctl-docs: handle per-namespace sysctls 2024-02-23 12:13:09 +01:00
check-uapi.sh check-uapi: Introduce check-uapi.sh 2023-12-29 22:25:20 +09:00
check-variable-fonts.sh docs: scripts/check-variable-fonts.sh: Improve commands for detection 2024-05-02 10:14:52 -06:00
check_extable.sh
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checkdeclares.pl
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checkincludes.pl
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checkkconfigsymbols.py
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checkpatch.pl kbuild: remove EXTRA_*FLAGS support 2025-03-15 21:16:21 +09:00
checkstack.pl scripts/checkstack.pl: fix no space expression between sp and offset 2023-12-29 12:22:28 -08:00
checksyscalls.sh
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checktransupdate.py scripts: fix all issues reported by pylint 2024-07-29 15:34:22 -06:00
checkversion.pl
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cleanfile
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cleanpatch
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coccicheck kbuild: change working directory to external module directory with M= 2024-11-28 08:10:23 +09:00
config kbuild: fix argument parsing in scripts/config 2025-03-15 21:22:42 +09:00
const_structs.checkpatch const_structs.checkpatch: add ctl_table 2024-10-09 13:39:11 +02:00
decode_stacktrace.sh scripts/decode_stacktrace.sh: fix decoding of lines with an additional info 2025-01-12 19:03:34 -08:00
decodecode scripts/decodecode: add support for LoongArch 2023-12-29 12:22:25 -08:00
depmod.sh kbuild: add $(objtree)/ prefix to some in-kernel build artifacts 2024-11-27 09:38:27 +09:00
dev-needs.sh
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diffconfig
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documentation-file-ref-check
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extract-ikconfig
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extract-module-sig.pl
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extract-sys-certs.pl
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extract-vmlinux
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extract_xc3028.pl
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faddr2line Revert "scripts/faddr2line: Check only two symbols when calculating symbol size" 2024-10-17 15:16:04 -07:00
file-size.sh
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find-unused-docs.sh
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gcc-x86_32-has-stack-protector.sh kbuild: Fix '-S -c' in x86 stack protector scripts 2024-07-29 03:47:00 +09:00
gcc-x86_64-has-stack-protector.sh kbuild: Fix '-S -c' in x86 stack protector scripts 2024-07-29 03:47:00 +09:00
gen-randstruct-seed.sh
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gen_packed_field_checks.c lib: packing: add pack_fields() and unpack_fields() 2024-12-11 20:13:00 -08:00
generate_builtin_ranges.awk kbuild: exclude .rodata.(cst|str)* when building ranges 2025-03-15 21:22:52 +09:00
generate_initcall_order.pl
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generate_rust_analyzer.py rust: use host dylib naming convention to support macOS 2025-01-10 01:01:24 +01:00
generate_rust_target.rs x86: rust: set rustc-abi=x86-softfloat on rustc>=1.86.0 2025-02-07 00:09:33 +01:00
get_abi.pl scripts/get_abi.pl: ignore some temp files 2024-01-03 14:02:17 -07:00
get_dvb_firmware
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get_feat.pl
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get_maintainer.pl get_maintainer: add --bug option to print bug reporting info 2024-08-26 16:10:12 -06:00
gfp-translate scripts: fix gfp-translate after ___GFP_*_BITS conversion to an enum 2024-09-01 17:59:01 -07:00
git.orderFile scripts: Introduce a default git.orderFile 2023-12-29 22:25:20 +09:00
head-object-list.txt openrisc: place exception table at the head of vmlinux 2024-12-10 12:04:19 +00:00
headerdep.pl
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headers_install.sh m68k: Avoid CONFIG_COLDFIRE switch in uapi header 2024-05-07 08:55:23 +10:00
insert-sys-cert.c
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install.sh kbuild: Create INSTALL_PATH directory if it does not exist 2024-07-20 13:34:54 +09:00
jobserver-exec
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kallsyms.c kallsyms: change overflow variable to bool type 2024-09-20 09:21:52 +09:00
kernel-doc scripts/kernel-doc: fix identifier parsing regex 2024-12-30 11:15:10 -07:00
ld-version.sh kbuild: Make ld-version.sh more robust against version string changes 2024-07-15 03:13:32 +09:00
leaking_addresses.pl leaking_addresses: Provide mechanism to scan binary files 2024-02-29 13:38:03 -08:00
link-vmlinux.sh kbuild: link-vmlinux.sh: Make output file name configurable 2025-03-17 00:29:45 +09:00
macro_checker.py scripts: add macro_checker script to check unused parameters in macros 2024-09-01 20:43:28 -07:00
make_fit.py scripts/make_fit: Support decomposing DTBs 2024-07-16 01:08:37 +09:00
makelst
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markup_oops.pl
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min-tool-version.sh rust: upgrade to Rust 1.78.0 2024-05-05 20:17:25 +02:00
misc-check
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mkcompile_h
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mksysmap scripts/mksysmap: Fix escape chars '$' 2024-12-28 23:23:52 +09:00
mkuboot.sh
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module-common.c kbuild: compile constant module information only once 2024-09-07 17:24:08 +09:00
module.lds.S kbuild: keep symbols for symbol_get() even with CONFIG_TRIM_UNUSED_KSYMS 2025-02-06 01:08:58 +09:00
modules-check.sh
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nsdeps scripts/nsdeps: get 'make nsdeps' working again 2024-12-03 08:22:25 -08:00
objdiff
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objdump-func
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orc_hash.sh
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pahole-version.sh
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parse-maintainers.pl
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patch-kernel
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profile2linkerlist.pl
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prune-kernel
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recordmcount.c scripts: clean up IA-64 code 2023-12-03 18:51:48 +09:00
recordmcount.h
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recordmcount.pl riscv: remove MCOUNT_NAME workaround 2024-02-22 15:38:54 -08:00
relocs_check.sh
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remove-stale-files selinux: move genheaders to security/selinux/ 2024-10-03 16:07:51 -04:00
rust_is_available.sh rust: document `bindgen` 0.71.0 regression 2025-01-10 00:17:00 +01:00
rust_is_available_bindgen_0_66.h rust: warn about `bindgen` versions 0.66.0 and 0.66.1 2024-07-10 10:28:52 +02:00
rust_is_available_bindgen_libclang.h
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rust_is_available_bindgen_libclang_concat.h rust: warn on bindgen < 0.69.5 and libclang >= 19.1 2024-11-12 21:26:54 +01:00
rust_is_available_test.py rust: warn on bindgen < 0.69.5 and libclang >= 19.1 2024-11-12 21:26:54 +01:00
rustc-llvm-version.sh kbuild: rust: avoid errors with old `rustc`s without LLVM patch version 2024-10-28 00:27:16 +01:00
rustc-version.sh kbuild: rust: add `CONFIG_RUSTC_VERSION` 2024-09-05 22:44:18 +02:00
rustdoc_test_builder.rs
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rustdoc_test_gen.rs
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setlocalversion setlocalversion: add -e option 2024-11-28 08:11:56 +09:00
show_delta scripts: make python shebangs specific about desired version 2025-03-15 21:19:44 +09:00
sign-file.c sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
sorttable.c scripts/sorttable: Use a structure of function pointers for elf helpers 2025-01-10 07:59:04 -05:00
spdxcheck-test.sh
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spdxcheck.py scripts/spdxcheck: Handle license identifiers in Jinja comments 2025-01-08 15:38:33 +01:00
spdxexclude
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spelling.txt kernel-wide: add explicity||explicitly to spelling.txt 2025-01-12 20:21:06 -08:00
sphinx-pre-install scripts: sphinx-pre-install: remove unnecessary double check for $cur_version 2024-09-05 14:32:36 -06:00
split-man.pl
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ssl-common.h sign-file,extract-cert: avoid using deprecated ERR_get_error_line() 2024-09-20 19:49:52 +03:00
stackdelta
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stackusage
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subarch.include scripts: subarch.include: fix SUBARCH on macOS hosts 2024-09-10 13:56:37 +09:00
syscall.tbl fs/xattr: add *at family syscalls 2024-11-06 12:59:44 -05:00
syscallhdr.sh
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syscallnr.sh
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syscalltbl.sh x86/syscall: Mark exit[_group] syscall handlers __noreturn 2024-06-28 15:23:38 +02:00
tags.sh Char/Misc/IIO driver updates for 6.14-rc1 2025-01-27 16:51:51 -08:00
tools-support-relr.sh
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unifdef.c scripts/unifdef: avoid constexpr keyword 2024-04-23 00:09:41 +09:00
ver_linux
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verify_builtin_ranges.awk scripts: add verifier script for builtin module range data 2024-09-20 09:21:52 +09:00
xen-hypercalls.sh
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xz_wrap.sh xz: adjust arch-specific options for better kernel compression 2024-09-01 20:43:27 -07:00