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| author | Jeroen Hofstee <jeroen@myspectrum.nl> | 2017-04-21 09:21:11 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-23 10:20:35 +0300 |
| commit | b53c7372d667767420cf86a1f02708e7bacfdb12 (patch) | |
| tree | 608f1aa82cf3776f8f218c6ef96459d9ff419297 /scripts | |
| parent | c36ae15ceb627305a063e60d005c592f46bc7806 (diff) | |
| download | linux-b53c7372d667767420cf86a1f02708e7bacfdb12.tar.xz | |
kbuild: fix asm-offset generation to work with clang
commit cf0c3e68aa81f992b0301f62e341b710d385bf68 upstream.
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>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/Makefile.lib | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index fd940cc81e54..4e02d51dfc62 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 |