diff options
| author | Behan Webster <behanw@converseincode.com> | 2014-07-31 21:08:25 -0700 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.cz> | 2014-08-05 15:40:01 +0200 |
| commit | 26ea6bb1fef06c686be771903ecab0518af5c2de (patch) | |
| tree | 9e74b8c2f493bffb2f721be4b1b831d2866663b7 | |
| parent | bfaf2dd3509bc73bf4a4cea0e72472755ed860e2 (diff) | |
kbuild, LLVMLinux: Supress warnings unless W=1-3
clang has more warnings enabled by default. Turn them off unless W is
set. This patch fixes a logic bug where warnings in clang were disabled
when W was set.
Signed-off-by: Behan Webster <behanw@converseincode.com>
Signed-off-by: Jan-Simon Möller <dl9pf@gmx.de>
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Cc: bp@alien8.de
Signed-off-by: Michal Marek <mmarek@suse.cz>
| -rw-r--r-- | Makefile | 1 | ||||
| -rw-r--r-- | scripts/Makefile.extrawarn | 21 |
2 files changed, 12 insertions, 10 deletions
@@ -663,6 +663,7 @@ KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) # source of a reference will be _MergedGlobals and not on of the whitelisted names. # See modpost pattern 2 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) +KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) else # This warning generated too much noise in a regular build. diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn index 65643506c71c..f734033af219 100644 --- a/scripts/Makefile.extrawarn +++ b/scripts/Makefile.extrawarn @@ -26,16 +26,6 @@ warning-1 += $(call cc-option, -Wmissing-include-dirs) warning-1 += $(call cc-option, -Wunused-but-set-variable) warning-1 += $(call cc-disable-warning, missing-field-initializers) -# Clang -warning-1 += $(call cc-disable-warning, initializer-overrides) -warning-1 += $(call cc-disable-warning, unused-value) -warning-1 += $(call cc-disable-warning, format) -warning-1 += $(call cc-disable-warning, unknown-warning-option) -warning-1 += $(call cc-disable-warning, sign-compare) -warning-1 += $(call cc-disable-warning, format-zero-length) -warning-1 += $(call cc-disable-warning, uninitialized) -warning-1 += $(call cc-option, -fcatch-undefined-behavior) - warning-2 := -Waggregate-return warning-2 += -Wcast-align warning-2 += -Wdisabled-optimization @@ -64,4 +54,15 @@ ifeq ("$(strip $(warning))","") endif KBUILD_CFLAGS += $(warning) +else + +ifeq ($(COMPILER),clang) +KBUILD_CFLAGS += $(call cc-disable-warning, initializer-overrides) +KBUILD_CFLAGS += $(call cc-disable-warning, unused-value) +KBUILD_CFLAGS += $(call cc-disable-warning, format) +KBUILD_CFLAGS += $(call cc-disable-warning, unknown-warning-option) +KBUILD_CFLAGS += $(call cc-disable-warning, sign-compare) +KBUILD_CFLAGS += $(call cc-disable-warning, format-zero-length) +KBUILD_CFLAGS += $(call cc-disable-warning, uninitialized) +endif endif |