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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> | 2022-12-02 17:40:03 +0100 |
| commit | c0a9c9973d24f224cabccd5ffec1887a1d77fe2f (patch) | |
| tree | c754a833c6d35d4c33751e96567479202ff629fd | |
| parent | 456e895fd0b84069a25d316885acae40e62a46a2 (diff) | |
| download | linux-stable-c0a9c9973d24f224cabccd5ffec1887a1d77fe2f.tar.gz linux-stable-c0a9c9973d24f224cabccd5ffec1887a1d77fe2f.tar.bz2 linux-stable-c0a9c9973d24f224cabccd5ffec1887a1d77fe2f.zip | |
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>
| -rw-r--r-- | init/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/init/Kconfig b/init/Kconfig index 22912631d79b..eba883d6d9ed 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -71,7 +71,7 @@ config CC_HAS_ASM_GOTO_OUTPUT 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 TOOLS_SUPPORT_RELR def_bool $(success,env "CC=$(CC)" "LD=$(LD)" "NM=$(NM)" "OBJCOPY=$(OBJCOPY)" $(srctree)/scripts/tools-support-relr.sh) |