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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-17 17:45:29 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-17 17:45:29 -0800 |
commit | 09bd7c75e55cbaa6c731b0c3a5512ad89159f26f (patch) | |
tree | a73bd9f94d7661d6ff82f3374d4efea81925f7c8 /scripts/link-vmlinux.sh | |
parent | fa7f578076a8814caa5371e9f4949e408140766d (diff) | |
parent | 7f855fc805cd9c29867aed56cc20f818b36a7b7b (diff) | |
download | linux-09bd7c75e55cbaa6c731b0c3a5512ad89159f26f.tar.bz2 |
Merge tag 'kbuild-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
"One of the most remarkable improvements in this cycle is, Kbuild is
now able to cache the result of shell commands. Some variables are
expensive to compute, for example, $(call cc-option,...) invokes the
compiler. It is not efficient to redo this computation every time,
even when we are not actually building anything. Kbuild creates a
hidden file ".cache.mk" that contains invoked shell commands and their
results. The speed-up should be noticeable.
Summary:
- Fix arch build issues (hexagon, sh)
- Clean up various Makefiles and scripts
- Fix wrong usage of {CFLAGS,LDFLAGS}_MODULE in arch Makefiles
- Cache variables that are expensive to compute
- Improve cc-ldopton and ld-option for Clang
- Optimize output directory creation"
* tag 'kbuild-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (30 commits)
kbuild: move coccicheck help from scripts/Makefile.help to top Makefile
sh: decompressor: add shipped files to .gitignore
frv: .gitignore: ignore vmlinux.lds
selinux: remove unnecessary assignment to subdir-
kbuild: specify FORCE in Makefile.headersinst as .PHONY target
kbuild: remove redundant mkdir from ./Kbuild
kbuild: optimize object directory creation for incremental build
kbuild: create object directories simpler and faster
kbuild: filter-out PHONY targets from "targets"
kbuild: remove redundant $(wildcard ...) for cmd_files calculation
kbuild: create directory for make cache only when necessary
sh: select KBUILD_DEFCONFIG depending on ARCH
kbuild: fix linker feature test macros when cross compiling with Clang
kbuild: shrink .cache.mk when it exceeds 1000 lines
kbuild: do not call cc-option before KBUILD_CFLAGS initialization
kbuild: Cache a few more calls to the compiler
kbuild: Add a cache for generated variables
kbuild: add forward declaration of default target to Makefile.asm-generic
kbuild: remove KBUILD_SUBDIR_ASFLAGS and KBUILD_SUBDIR_CCFLAGS
hexagon/kbuild: replace CFLAGS_MODULE with KBUILD_CFLAGS_MODULE
...
Diffstat (limited to 'scripts/link-vmlinux.sh')
-rwxr-xr-x | scripts/link-vmlinux.sh | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh index e6818b8e7141..c0d129d7f430 100755 --- a/scripts/link-vmlinux.sh +++ b/scripts/link-vmlinux.sh @@ -188,10 +188,8 @@ sortextable() # Delete output files in case of error cleanup() { - rm -f .old_version rm -f .tmp_System.map rm -f .tmp_kallsyms* - rm -f .tmp_version rm -f .tmp_vmlinux* rm -f built-in.o rm -f System.map @@ -239,12 +237,12 @@ esac # Update version info GEN .version -if [ ! -r .version ]; then - rm -f .version; - echo 1 >.version; +if [ -r .version ]; then + VERSION=$(expr 0$(cat .version) + 1) + echo $VERSION > .version else - mv .version .old_version; - expr 0$(cat .old_version) + 1 >.version; + rm -f .version + echo 1 > .version fi; # final build of init/ @@ -332,6 +330,3 @@ if [ -n "${CONFIG_KALLSYMS}" ]; then exit 1 fi fi - -# We made a new kernel - delete old version file -rm -f .old_version |