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| author | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2022-11-15 12:01:58 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-12-08 11:22:59 +0100 |
| commit | da849abded31fc785ad4041399353bb0050f0c63 (patch) | |
| tree | 75a2c39041f122bb9c0ac16a4fc3adbe1412a4d7 /init | |
| parent | 03949acb58f0bd85d1a8d88b231de99bb3cbecae (diff) | |
init/Kconfig: fix CC_HAS_ASM_GOTO_TIED_OUTPUT test with dash
[ Upstream commit 534bd70374d646f17e2cebe0e6e4cdd478ce4f0c ]
When using dash as /bin/sh, the CC_HAS_ASM_GOTO_TIED_OUTPUT test fails
with a syntax error which is not the one we are looking for:
<stdin>: In function ‘foo’:
<stdin>:1:29: warning: missing terminating " character
<stdin>:1:29: error: missing terminating " character
<stdin>:2:5: error: expected ‘:’ before ‘+’ token
<stdin>:2:7: warning: missing terminating " character
<stdin>:2:7: error: missing terminating " character
<stdin>:2:5: error: expected declaration or statement at end of input
Removing '\n' solves this.
Fixes: 1aa0e8b144b6 ("Kconfig: Add option for asm goto w/ tied outputs to workaround clang-13 bug")
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/init/Kconfig b/init/Kconfig index 74f44b753d61..f641518f4ac5 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -36,7 +36,7 @@ config CC_HAS_ASM_GOTO config CC_HAS_ASM_GOTO_TIED_OUTPUT depends on CC_HAS_ASM_GOTO_OUTPUT # Detect buggy gcc and clang, fixed in gcc-11 clang-14. - def_bool $(success,echo 'int foo(int *x) { asm goto (".long (%l[bar]) - .\n": "+m"(*x) ::: bar); return *x; bar: return 0; }' | $CC -x c - -c -o /dev/null) + def_bool $(success,echo 'int foo(int *x) { asm goto (".long (%l[bar]) - .": "+m"(*x) ::: bar); return *x; bar: return 0; }' | $CC -x c - -c -o /dev/null) config CC_HAS_ASM_GOTO_OUTPUT depends on CC_HAS_ASM_GOTO |