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| author | Masahiro Yamada <masahiroy@kernel.org> | 2020-05-09 16:39:15 +0900 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2020-05-17 18:52:01 +0900 |
| commit | b1183b6dca3e0d59ce8fa81767def6ea6188e8ec (patch) | |
| tree | 0ddba79b19f44ad98ae7e918601c531462f4d52b /init | |
| parent | 9371f86ecb60f6f1f120e3d93fe892bbb70d04c0 (diff) | |
| download | lwn-b1183b6dca3e0d59ce8fa81767def6ea6188e8ec.tar.gz lwn-b1183b6dca3e0d59ce8fa81767def6ea6188e8ec.zip | |
bpfilter: check if $(CC) can link static libc in Kconfig
On Fedora, linking static glibc requires the glibc-static RPM package,
which is not part of the glibc-devel package.
CONFIG_CC_CAN_LINK does not check the capability of static linking,
so you can enable CONFIG_BPFILTER_UMH, then fail to build:
HOSTLD net/bpfilter/bpfilter_umh
/usr/bin/ld: cannot find -lc
collect2: error: ld returned 1 exit status
Add CONFIG_CC_CAN_LINK_STATIC, and make CONFIG_BPFILTER_UMH depend
on it.
Reported-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig index b2ce83c2e84c..fb8ab85de7f8 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -49,6 +49,11 @@ config CC_CAN_LINK default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(m64-flag)) if 64BIT default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(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)) + config CC_HAS_ASM_GOTO def_bool $(success,$(srctree)/scripts/gcc-goto.sh $(CC)) |