diff options
| author | Masahiro Yamada <masahiroy@kernel.org> | 2020-07-01 00:06:24 +0900 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2020-07-02 00:57:45 +0900 |
| commit | b816b3db15f68690ee72a4a414624f8e82942b25 (patch) | |
| tree | defed5906aa7bed07ef2eb81367a18087cd942dc /init/Kconfig | |
| parent | 8f8499a910e63f9973b95c183e2d3bccfe9845ac (diff) | |
| download | lwn-b816b3db15f68690ee72a4a414624f8e82942b25.tar.gz lwn-b816b3db15f68690ee72a4a414624f8e82942b25.zip | |
kbuild: fix CONFIG_CC_CAN_LINK(_STATIC) for cross-compilation with Clang
scripts/cc-can-link.sh tests if the compiler can link userspace
programs.
When $(CC) is GCC, it is checked against the target architecture
because the toolchain prefix is specified as a part of $(CC).
When $(CC) is Clang, it is checked against the host architecture
because --target option is missing.
Pass $(CLANG_FLAGS) to scripts/cc-can-link.sh to evaluate the link
capability for the target architecture.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Diffstat (limited to 'init/Kconfig')
| -rw-r--r-- | init/Kconfig | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/init/Kconfig b/init/Kconfig index a46aa8f3174d..0498af567f70 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -49,13 +49,13 @@ config CLANG_VERSION config CC_CAN_LINK bool - default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(m64-flag)) if 64BIT - default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(m32-flag)) + default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m64-flag)) if 64BIT + default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m32-flag)) config CC_CAN_LINK_STATIC bool - default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) -static $(m64-flag)) if 64BIT - default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) -static $(m32-flag)) + default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m64-flag) -static) if 64BIT + default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m32-flag) -static) config CC_HAS_ASM_GOTO def_bool $(success,$(srctree)/scripts/gcc-goto.sh $(CC)) |