| Message ID | 20200428221419.2530697-2-natechancellor@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Allow ld.lld to link the MIPS VDSO | expand |
On Wed, Apr 29, 2020 at 12:14 AM Nathan Chancellor <natechancellor@gmail.com> wrote: > > From: Sami Tolvanen <samitolvanen@google.com> > > Similarly to the CC_IS_CLANG config, add LD_IS_LLD to avoid GNU ld > specific logic such as ld-version or ld-ifversion and gain the > ability to select potential features that depend on the linker at > configuration time such as LTO. > > Signed-off-by: Sami Tolvanen <samitolvanen@google.com> > Acked-by: Masahiro Yamada <masahiroy@kernel.org> > [nc: Reword commit message] > Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Reviewed-by: Sedat Dilek <sedat.dilek@gmail.com> Testing on Debian/testing AMD64 (since Linux v5.3): #1: LLVM/Clang/LLD version 9.0 and 10.0 #2: Debian's GCC 9.3 with ld.lld-9 and ld.lld-10 I am linking my Linux-kernels with ld.lld despite there are issues - then check with ld.bfd. - Sedat - > --- > > v3 -> v4: > > * No changes. > > v2 -> v3: > > * Add Masahiro's ack. > > v1 -> v2: > > * No changes. > > Sami, please scream if you are unhappy with how I worded this commit. > > init/Kconfig | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/init/Kconfig b/init/Kconfig > index 9e22ee8fbd75e..c15ee42b82726 100644 > --- a/init/Kconfig > +++ b/init/Kconfig > @@ -23,6 +23,9 @@ config LD_VERSION > config CC_IS_CLANG > def_bool $(success,$(CC) --version | head -n 1 | grep -q clang) > > +config LD_IS_LLD > + def_bool $(success,$(LD) -v | head -n 1 | grep -q LLD) > + > config CLANG_VERSION > int > default $(shell,$(srctree)/scripts/clang-version.sh $(CC)) > > base-commit: 96c9a7802af7d500a582d89a8b864584fe878c1b > -- > 2.26.2 >
On Wed, Apr 29, 2020 at 09:13:40AM +0200, Sedat Dilek wrote: > On Wed, Apr 29, 2020 at 12:14 AM Nathan Chancellor > <natechancellor@gmail.com> wrote: > > > > From: Sami Tolvanen <samitolvanen@google.com> > > > > Similarly to the CC_IS_CLANG config, add LD_IS_LLD to avoid GNU ld > > specific logic such as ld-version or ld-ifversion and gain the > > ability to select potential features that depend on the linker at > > configuration time such as LTO. > > > > Signed-off-by: Sami Tolvanen <samitolvanen@google.com> > > Acked-by: Masahiro Yamada <masahiroy@kernel.org> > > [nc: Reword commit message] > > Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> > > Tested-by: Sedat Dilek <sedat.dilek@gmail.com> > Reviewed-by: Sedat Dilek <sedat.dilek@gmail.com> > > Testing on Debian/testing AMD64 (since Linux v5.3): > #1: LLVM/Clang/LLD version 9.0 and 10.0 > #2: Debian's GCC 9.3 with ld.lld-9 and ld.lld-10 > > I am linking my Linux-kernels with ld.lld despite there are issues - > then check with ld.bfd. What issues are these? Have they been reported? Cheers, Nathan > - Sedat - > > > --- > > > > v3 -> v4: > > > > * No changes. > > > > v2 -> v3: > > > > * Add Masahiro's ack. > > > > v1 -> v2: > > > > * No changes. > > > > Sami, please scream if you are unhappy with how I worded this commit. > > > > init/Kconfig | 3 +++ > > 1 file changed, 3 insertions(+) > > > > diff --git a/init/Kconfig b/init/Kconfig > > index 9e22ee8fbd75e..c15ee42b82726 100644 > > --- a/init/Kconfig > > +++ b/init/Kconfig > > @@ -23,6 +23,9 @@ config LD_VERSION > > config CC_IS_CLANG > > def_bool $(success,$(CC) --version | head -n 1 | grep -q clang) > > > > +config LD_IS_LLD > > + def_bool $(success,$(LD) -v | head -n 1 | grep -q LLD) > > + > > config CLANG_VERSION > > int > > default $(shell,$(srctree)/scripts/clang-version.sh $(CC)) > > > > base-commit: 96c9a7802af7d500a582d89a8b864584fe878c1b > > -- > > 2.26.2 > >
diff --git a/init/Kconfig b/init/Kconfig index 9e22ee8fbd75e..c15ee42b82726 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -23,6 +23,9 @@ config LD_VERSION config CC_IS_CLANG def_bool $(success,$(CC) --version | head -n 1 | grep -q clang) +config LD_IS_LLD + def_bool $(success,$(LD) -v | head -n 1 | grep -q LLD) + config CLANG_VERSION int default $(shell,$(srctree)/scripts/clang-version.sh $(CC))