From: Sami Tolvanen <samitolvanen@google.com>
Date: Tue, 28 Apr 2020 22:14:15 +0000 (-0700)
Subject: kbuild: add CONFIG_LD_IS_LLD
X-Git-Tag: v4.19.234~15
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=594de64394b45200cefe25aeab3ad0ac88c451a4;p=thirdparty%2Fkernel%2Fstable.git

kbuild: add CONFIG_LD_IS_LLD

commit b744b43f79cc758127042e71f9ad7b1afda30f84 upstream.

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>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/init/Kconfig b/init/Kconfig
index 0fe4f60c974d7..15c02e15d3fd4 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -19,6 +19,9 @@ config GCC_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))