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[PATCH v2 0/2] kbuild: cleanup asm-offset generation, and make it work with clang

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  [PATCH v2 0/2] kbuild: cleanup asm-offset generation, and make it work with clang Masahiro Yamada <yamada.masahiro@socionext.com> - 2017-04-21 08:30 +0200
    [PATCH v2 1/2] kbuild: consolidate redundant sed script ASM offset generation Masahiro Yamada <yamada.masahiro@socionext.com> - 2017-04-21 08:30 +0200
    Re: [PATCH v2 0/2] kbuild: cleanup asm-offset generation, and make it  work with clang Masahiro Yamada <yamada.masahiro@socionext.com> - 2017-04-23 09:10 +0200

#1627985 — [PATCH v2 0/2] kbuild: cleanup asm-offset generation, and make it work with clang

1/2 is a trivial cleanup of sed script

2/2 imports clang work-around from U-Boot.


Changes in v2:
  - V1 did not work with LLVM's integrated assembler because
    it uses <tab> instead of <space> around the .ascii string.
    Restore [:space:].

Jeroen Hofstee (1):
  kbuild: fix asm-offset generation to work with clang

Masahiro Yamada (1):
  kbuild: consolidate redundant sed script ASM offset generation

 include/linux/kbuild.h | 6 +++---
 scripts/Makefile.lib   | 9 ++++++---
 2 files changed, 9 insertions(+), 6 deletions(-)

-- 
2.7.4

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#1627986 — [PATCH v2 1/2] kbuild: consolidate redundant sed script ASM offset generation

This part ended up in redundant code after touched by multiple
people.

[1] Commit 3234282f33b2 ("x86, asm: Fix CFI macro invocations to
deal with shortcomings in gas") added parentheses for defined
expressions to support old gas for x86.

[2] Commit a22dcdb0032c ("x86, asm: Fix ancient-GAS workaround")
split the pattern into two to avoid parentheses for non-numeric
expressions.

[3] Commit 95a2f6f72d37 ("Partially revert patch that encloses
asm-offset.h numbers in brackets") removed parentheses from numeric
expressions as well because parentheses in MN10300 assembly have a
special meaning (pointer access).

Apparently, there is a conflict between [1] and [3].  After all,
[3] took precedence, and a long time has passed since then.

Now, merge the two patterns again because the first one is covered
by the other.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
---

Changes in v2: None

 scripts/Makefile.lib | 1 -
 1 file changed, 1 deletion(-)

diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index e36427a..9c20690 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -415,7 +415,6 @@ cmd_xzmisc = (cat $(filter-out FORCE,$^) | \
 # 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
-- 
2.7.4

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#1628915 — Re: [PATCH v2 0/2] kbuild: cleanup asm-offset generation, and make it work with clang

2017-04-21 15:21 GMT+09:00 Masahiro Yamada <yamada.masahiro@socionext.com>:
> 1/2 is a trivial cleanup of sed script
>
> 2/2 imports clang work-around from U-Boot.


Series, applied to linux-kbuild/kbuild.


-- 
Best Regards
Masahiro Yamada

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