patrick/zephyr
1
0
Fork 0
Code Issues Pull requests Actions 8 Packages Projects Releases Wiki Activity

compiler: gcc: Add warning option to spot poblematic switches

Browse source 
Option -Wimplicit-fallthrough as the name suggests raises a warning when
there is an implicit fallthrough in a switch clause. This warning does
not happen when the last statement is a return or a call to a function
declared with noreturn attribute.

This flag helps to enforce two MISRA-C rules (not completely), 16.1 and
16.3

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
This commit is contained in:
Flavio Ceolin 2019-07-17 21:49:42 -07:00 committed by Anas Nashif
parent 86b2cbc5ea
commit 680f401ef2
1 changed files with 6 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
cmake/compiler/gcc/target_warnings.cmake
View file

@ -12,6 +12,12 @@ macro(toolchain_cc_warning_base)
-Wno-main
)
if(CMAKE_C_COMPILER_VERSION VERSION_GREATER "7.1.0")
zephyr_compile_options(
-Wimplicit-fallthrough=2
)
endif()
if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER "9.1.0")
zephyr_compile_options(
# FIXME: Remove once #16587 is fixed