kbuild: drop support for cc-ldoption

If you want to see if your linker supports a certain flag, then ask the
linker directly with ld-option (not the compiler with cc-ldoption).
Checking for linker flag support is an antipattern that complicates the
usage of various linkers other than bfd via -fuse-ld={bfd|gold|lld}.

Cc: clang-built-linux@googlegroups.com
Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

1 files changed, 0 insertions, 14 deletions

diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index 03c065855eaf..d65ad5746f94 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -437,20 +437,6 @@ more details, with real examples.
         The second argument is optional, and if supplied will be used
         if first argument is not supported.
 
-    cc-ldoption
-        cc-ldoption is used to check if $(CC) when used to link object files
-        supports the given option.  An optional second option may be
-        specified if first option are not supported.
-
-        Example:
-                #arch/x86/kernel/Makefile
-                vsyscall-flags += $(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
-
-        In the above example, vsyscall-flags will be assigned the option
-        -Wl$(comma)--hash-style=sysv if it is supported by $(CC).
-        The second argument is optional, and if supplied will be used
-        if first argument is not supported.
-
     as-instr
         as-instr checks if the assembler reports a specific instruction
         and then outputs either option1 or option2