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authorJeroen Hofstee <jeroen@myspectrum.nl>2017-04-21 15:21:11 +0900
committerMasahiro Yamada <yamada.masahiro@socionext.com>2017-04-23 15:51:26 +0900
commitcf0c3e68aa81f992b0301f62e341b710d385bf68 (patch)
tree7645f9967cf133854eefd270ee84264cc3d614da /scripts
parent7dd47b95b0f54f2057d40af6e66d477e3fe95d13 (diff)
kbuild: fix asm-offset generation to work with clang
KBuild abuses the asm statement to write to a file and clang chokes about these invalid asm statements. Hack it even more by fooling this is actual valid asm code. [masahiro: Import Jeroen's work for U-Boot: http://patchwork.ozlabs.org/patch/375026/ Tweak sed script a little to avoid garbage '#' for GCC case, like #define NR_PAGEFLAGS 23 /* __NR_PAGEFLAGS # */ ] Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Tested-by: Matthias Kaehlcke <mka@chromium.org>
Diffstat (limited to 'scripts')
-rw-r--r--scripts/Makefile.lib8
1 files changed, 6 insertions, 2 deletions
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 8109c133887d..2209ed696fb4 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -413,10 +413,14 @@ cmd_xzmisc = (cat $(filter-out FORCE,$^) | \
# ---------------------------------------------------------------------------
# Default sed regexp - multiline due to syntax constraints
+#
+# Use [:space:] because LLVM's integrated assembler inserts <tab> around
+# the .ascii directive whereas GCC keeps the <space> as-is.
define sed-offsets
- "/^->/{s:->#\(.*\):/* \1 */:; \
+ 's:^[[:space:]]*\.ascii[[:space:]]*"\(.*\)".*:\1:; \
+ /^->/{s:->#\(.*\):/* \1 */:; \
s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
- s:->::; p;}"
+ s:->::; p;}'
endef
# Use filechk to avoid rebuilds when a header changes, but the resulting file

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