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authorLinus Torvalds <torvalds@linux-foundation.org>2022-12-19 12:33:32 -0600
committerLinus Torvalds <torvalds@linux-foundation.org>2022-12-19 12:33:32 -0600
commit6feb57c2fd7c787aecf2846a535248899e7b70fa (patch)
treed87341e41639f58c464919fa857f5411e6f74344 /lib
parent158738ea75059fb4ddf812e2cb9fe1ff6e22bc70 (diff)
parent731c4eac848ff9dd42776da8ed3407b257e3abf0 (diff)
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Merge tag 'kbuild-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada: - Support zstd-compressed debug info - Allow W=1 builds to detect objects shared among multiple modules - Add srcrpm-pkg target to generate a source RPM package - Make the -s option detection work for future GNU Make versions - Add -Werror to KBUILD_CPPFLAGS when CONFIG_WERROR=y - Allow W=1 builds to detect -Wundef warnings in any preprocessed files - Raise the minimum supported version of binutils to 2.25 - Use $(intcmp ...) to compare integers if GNU Make >= 4.4 is used - Use $(file ...) to read a file if GNU Make >= 4.2 is used - Print error if GNU Make older than 3.82 is used - Allow modpost to detect section mismatches with Clang LTO - Include vmlinuz.efi into kernel tarballs for arm64 CONFIG_EFI_ZBOOT=y * tag 'kbuild-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (29 commits) buildtar: fix tarballs with EFI_ZBOOT enabled modpost: Include '.text.*' in TEXT_SECTIONS padata: Mark padata_work_init() as __ref kbuild: ensure Make >= 3.82 is used kbuild: refactor the prerequisites of the modpost rule kbuild: change module.order to list *.o instead of *.ko kbuild: use .NOTINTERMEDIATE for future GNU Make versions kconfig: refactor Makefile to reduce process forks kbuild: add read-file macro kbuild: do not sort after reading modules.order kbuild: add test-{ge,gt,le,lt} macros Documentation: raise minimum supported version of binutils to 2.25 kbuild: add -Wundef to KBUILD_CPPFLAGS for W=1 builds kbuild: move -Werror from KBUILD_CFLAGS to KBUILD_CPPFLAGS kbuild: Port silent mode detection to future gnu make. init/version.c: remove #include <generated/utsrelease.h> firmware_loader: remove #include <generated/utsrelease.h> modpost: Mark uuid_le type to be suitable only for MEI kbuild: add ability to make source rpm buildable using koji kbuild: warn objects shared among multiple modules ...
Diffstat (limited to 'lib')
-rw-r--r--lib/Kconfig.debug29
1 files changed, 27 insertions, 2 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index d3784039738e..881c3f84e88a 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -312,8 +312,21 @@ config DEBUG_INFO_REDUCED
DEBUG_INFO build and compile times are reduced too.
Only works with newer gcc versions.
-config DEBUG_INFO_COMPRESSED
- bool "Compressed debugging information"
+choice
+ prompt "Compressed Debug information"
+ help
+ Compress the resulting debug info. Results in smaller debug info sections,
+ but requires that consumers are able to decompress the results.
+
+ If unsure, choose DEBUG_INFO_COMPRESSED_NONE.
+
+config DEBUG_INFO_COMPRESSED_NONE
+ bool "Don't compress debug information"
+ help
+ Don't compress debug info sections.
+
+config DEBUG_INFO_COMPRESSED_ZLIB
+ bool "Compress debugging information with zlib"
depends on $(cc-option,-gz=zlib)
depends on $(ld-option,--compress-debug-sections=zlib)
help
@@ -327,6 +340,18 @@ config DEBUG_INFO_COMPRESSED
preferable to setting $KDEB_COMPRESS to "none" which would be even
larger.
+config DEBUG_INFO_COMPRESSED_ZSTD
+ bool "Compress debugging information with zstd"
+ depends on $(cc-option,-gz=zstd)
+ depends on $(ld-option,--compress-debug-sections=zstd)
+ help
+ Compress the debug information using zstd. This may provide better
+ compression than zlib, for about the same time costs, but requires newer
+ toolchain support. Requires GCC 13.0+ or Clang 16.0+, binutils 2.40+, and
+ zstd.
+
+endchoice # "Compressed Debug information"
+
config DEBUG_INFO_SPLIT
bool "Produce split debuginfo in .dwo files"
depends on $(cc-option,-gsplit-dwarf)