zephyr/soc/arc/snps_arc_iot
Peter Bigot 4a470114fa arc: rearrange for standard use of extern "C"
Consistently place C++ use of extern "C" after all include directives,
within the negative branch of _ASMLANGUAGE if used.

Remove extern "C" support from files that don't declare objects or
functions.

In arch/arc/arch.h the extern "C" in the including context is left
active during an include to avoid more complex restructuring.

Background from issue #17997:

Declarations that use C linkage should be placed within extern "C"
so the language linkage is correct when the header is included by
a C++ compiler.

Similarly #include directives should be outside the extern "C" to
ensure the language-specific default linkage is applied to any
declarations provided by the included header.

See: https://en.cppreference.com/w/cpp/language/language_linkage
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2019-08-20 00:49:15 +02:00
..
CMakeLists.txt
Kconfig.defconfig
Kconfig.soc
dts_fixup.h
linker.ld
soc.c soc: snps_arc_iot: Get CPU clock frequency from DTS 2019-07-24 15:10:02 +02:00
soc.h
soc_irq.h
sysconf.c
sysconf.h arc: rearrange for standard use of extern "C" 2019-08-20 00:49:15 +02:00