The xcc specific reentrant syscall implementations are actually useful
for xtensa in general. So move that code from being specific to
intel_s1000 / xcc into generic newlib/libc-hooks.c. This is in prep
for the Zephyr SDK dropping -DMISSING_SYSCALL_NAMES which will make
its version of newlib on xtensa match behavior with xcc.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
The XCC toolchain may come with Clang front-end depending on
how it's built. Currently, the only SoC/board using XCC is
the intel_s1000_crb and its XCC toolchain comes with Clang
3.9.0 which has a lot better support for C99 and C++11 than
the portion based on GCC 4.2 (which does not even support
C++11). So this change attempts to use the Clang portion
instead of GCC if the Clang executable exists.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
XCC does not seem to handle if(IS_ENABLED()) well which means
XCC would not get rid of code even IS_ENABLED() is false.
In this case, sys_reboot() call in ztest is in this situation
so add a dummy version for ztest only.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
During LOG_*() macro expansions, XCC expands everything even though
IS_ENABLED() is used. This resulting in various log*() functions
(e.g. log_0(), log_1(), etc.) being required for linking. However,
when CONFIG_LOG_MINIMAL=y, those functions are not compiled from
the logging subsystem. Therefore, to get past the linking error,
dummy versions are being provided.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
The newlib of XCC requires linking to _gettimeofday_r() which
should have been provided by its own C library, but obviously
isn't. So we need to provide a dummy version to get past
the build error.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Kumar Gala