Add a Kconfig option to force cc warnings to errors. For new
development it is recommended this setting be enabled as warnings
in the code will be quite obvious.
v2: * remove DOTs from Kconfig entries
* reworded Kconfig to not imply suppressing cc warnings was
acceptable
* default option to 'n'
Signed-off-by: Jonathan Toppins <jtoppins@xxxxxxxxxxxxxxxxxxx>
---
Makefile | 4 ++++
lib/Kconfig.debug | 10 ++++++++++
2 files changed, 14 insertions(+)
diff --git a/Makefile b/Makefile
index dc2d91a..a69562a 100644
--- a/Makefile
+++ b/Makefile
@@ -764,6 +764,10 @@ ifdef CONFIG_DEBUG_SECTION_MISMATCH
KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once)
endif
+ifdef CONFIG_DEBUG_FORCE_CC_WARNINGS_TO_ERRORS
+KBUILD_CFLAGS += $(call cc-option, -Werror)
+endif
+
# arch Makefile may override CC so keep this after arch Makefile is included
NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
CHECKFLAGS += $(NOSTDINC_FLAGS)
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 3e0289e..bbe2eed 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -347,6 +347,16 @@ config DEBUG_FORCE_WEAK_PER_CPU
To ensure that generic code follows the above rules, this
option forces all percpu variables to be defined as weak.
+config DEBUG_FORCE_CC_WARNINGS_TO_ERRORS
+ bool "Force cc warnings to errors"
+ help
+ Simply enables the gcc compiler option -Werror for the entire
+ build. This option is intended to be more in the developer's
+ face and encourage effort of some kind to remove the
+ compilation warning.
+
+ If doing new development recommend setting to y.
+
endmenu # "Compiler options"
config MAGIC_SYSRQ
--
1.7.10.4
--
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