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| author | Matthias Kaehlcke <mka@chromium.org> | 2017-04-12 22:43:52 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-27 18:07:57 +0300 |
| commit | c7288b457145b8e9a3ffbee1c0fb78afeb9d3693 (patch) | |
| tree | 34330904819f67f8aee43fb56b4d5d7a5971da9d /scripts/Makefile.lib | |
| parent | 3ebd7941d0bdc85ebfc6eaa58fbf53e0f26e00e3 (diff) | |
| download | linux-c7288b457145b8e9a3ffbee1c0fb78afeb9d3693.tar.xz | |
kbuild: Consolidate header generation from ASM offset information
commit ebf003f0cfb3705e60d40dedc3ec949176c741af upstream.
Largely redundant code is used in different places to generate C headers
from offset information extracted from assembly language output.
Consolidate the code in Makefile.lib and use this instead.
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/Makefile.lib')
| -rw-r--r-- | scripts/Makefile.lib | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index a2d0e6d32659..18a1c8381ce0 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -388,3 +388,31 @@ quiet_cmd_xzmisc = XZMISC $@ cmd_xzmisc = (cat $(filter-out FORCE,$^) | \ xz --check=crc32 --lzma2=dict=1MiB) > $@ || \ (rm -f $@ ; false) + +# ASM offsets +# --------------------------------------------------------------------------- + +# Default sed regexp - multiline due to syntax constraints +define sed-offsets + "/^->/{s:->#\(.*\):/* \1 */:; \ + s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \ + s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ + s:->::; p;}" +endef + +# Use filechk to avoid rebuilds when a header changes, but the resulting file +# does not +define filechk_offsets + (set -e; \ + echo "#ifndef $2"; \ + echo "#define $2"; \ + echo "/*"; \ + echo " * DO NOT MODIFY."; \ + echo " *"; \ + echo " * This file was generated by Kbuild"; \ + echo " */"; \ + echo ""; \ + sed -ne $(sed-offsets); \ + echo ""; \ + echo "#endif" ) +endef |