kbuild: clang: remove crufty HOSTCFLAGS

When compiling with `make CC=clang HOSTCC=clang`, I was seeing warnings that clang did not recognize -fno-delete-null-pointer-checks for HOSTCC targets. These were added in commit 61163ef ("kbuild: LLVMLinux: Add Kbuild support for building kernel with Clang"). Clang does not support -fno-delete-null-pointer-checks, so adding it to HOSTCFLAGS if HOSTCC is clang does not make sense. It's not clear why the other warnings were disabled, and just for HOSTCFLAGS, but I can remove them, add -Werror to HOSTCFLAGS and compile with clang just fine. Suggested-by: Masahiro Yamada <[email protected]> Signed-off-by: Nick Desaulniers <[email protected]> Signed-off-by: Masahiro Yamada <[email protected]> Change-Id: I22ae78f4ae700a8780e04cb11ec6f26a5e52e253
FlominatorGD · Aug 18, 2024 · 9386b47 · 9386b47
1 parent 8aaa52f
commit 9386b47
Showing 1 changed file with 1 addition and 6 deletions.
diff --git a/Makefile b/Makefile
@@ -299,12 +299,7 @@ HOSTCXX      = g++
 HOSTCFLAGS   = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -std=gnu89
 HOSTCXXFLAGS = -O2
 
-ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1)
-HOSTCFLAGS  += -Wno-unused-value -Wno-unused-parameter \
-		-Wno-missing-field-initializers -fno-delete-null-pointer-checks
-endif
-
-# Decide whether to build built-in, modular, or both. 
+# Decide whether to build built-in, modular, or both.
 # Normally, just do built-in.
 
 KBUILD_MODULES :=