Instead of setting XCC_USE_CLANG=1, this patch adds xcc-clang toolchain
that is basically xcc using the clang compiler.
Initially, the new toolchain simply includes files from current xcc
toolchain and (re)sets some variables. This should be a more scalable
approach to diverge the toolchains in the future than placing
"if($ENV{XCC_USE_CLANG})" at several places.
It should also help to filter tests that run (or not) exclusively with
the clang variant of XCC on twister.
The XCC_USE_CLANG flag is documented as deprecated, and a message is
emitted during build if still in use. Its new behaviour is to instruct
Zephyr to use `xcc-clang` toolchain.
Signed-off-by: Ederson de Souza <ederson.desouza@intel.com>
XCC (based on GCC 4.2) doesn't recognize -Wvla (for variable-length
array), so remove it from "warning_error_misra_sane" property.
Signed-off-by: Ederson de Souza <ederson.desouza@intel.com>
This reverts commit deeb98da53.
A less invasive change has been implemented which does not
require changes to the GCC compiler flag file. So revert
the commit.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Some older versions of XCC Clang would result in the following
error during compilation:
/tmp/file.s: Assembler messages:
/tmp/file.s:20: Error: file number 1 already allocated
clang-3.9: error: Xtensa-as command failed with exit code 1
due to a bug in LLVM: https://bugs.llvm.org/show_bug.cgi?id=11740.
This is fixed in upstream, https://reviews.llvm.org/D20002, in 2016.
However, it seems that it is only fixed after XCC RI-2018.0.
Instead of blanket disabling usage of '-g', use an environment
variable "XCC_NO_G_FLAG" to disable usage of flag '-g' to workaround
this issue. This needs to be manually set because there is no way to
know which XCC version is being used, and compiler flag checking for
'-g' would not result in error (and thus '-g' is not ignored).
This is only needed for older XCC Clang. For sufficiently new XCC
verisons, there is no need for this.
Note that this is an alternative implementation to commit
deeb98da53. This one does not
alter the GCC flag file, and instead, simply clear the debug
compiler property so "-g" is not used.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Some older versions of XCC Clang would result in the following
error during compilation:
/tmp/file.s: Assembler messages:
/tmp/file.s:20: Error: file number 1 already allocated
clang-3.9: error: Xtensa-as command failed with exit code 1
due to a bug in LLVM: https://bugs.llvm.org/show_bug.cgi?id=11740.
This is fixed in upstream, https://reviews.llvm.org/D20002, in 2016.
However, it seems that it is only fixed after XCC RI-2018.0.
Instead of blanket disabling usage of '-g', use an environment
variable "XCC_NO_G_FLAG" to disable usage of flag '-g' to workaround
this issue. This needs to be manually set because there is no way to
know which XCC version is being used, and compiler flag checking for
'-g' would not result in error (and thus '-g' is not ignored).
This is only needed for older XCC Clang. For sufficiently new XCC
verisons, there is no need for this.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Cadence XCC is based off of a very old 4.2 gcc compiler, which didn't
perfectly support C99 "inline" semantics with respect to
cross-translation-unit inline linkage (which Zephyr does not use, our
inlines are static only) and declaration order.
Fix the one spot where we were calling an inline before its
ALWAYS_INLINE definition, and add a flag to suppress the warning so
CI's trying to build with XCC and -Werror don't flip out.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
For each compiler, also set a CMAKE_GCOV var referencing the appropriate
gcov tool.
Tested with gcc and host-gcc on the ChromeOS codebase.
Signed-off-by: Jeremy Bettis <jbettis@chromium.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>
Depending on how compiler is built, it prints a different include
directory with `--print-file-name=include`. What we want, instead, is
directories with `stddef.h` and `include-fixed/limits.h`.
This commit explicitly specify the header files we want to use, then
take the directory from the returned path.
Signed-off-by: Yasushi SHOJI <y-shoji@ispace-inc.com>
This forms the foundation for the abstraction of the binary tools,
where the following steps are taken:
- Move binary tool resolving, such as objcopy, objdump, readelf and
so forth, out of compiler definitions and place in a dedicated binary
tools folder with the binary tools supplier as subfolder, similar to
the compiler and linker directories.
- Create binary tool sets, gnu, host-gnu and llvm.
- Each toolchain selects the required set of binary tools by setting
BINTOOLS via its generic.cmake as it also does for compiler and linker.
The intent here is to abstract Zephyr's dependence on toolchains,
thus allowing for easier porting to other, perhaps commercial,
toolchains and/or usecases.
No functional change expected.
Signed-off-by: Danny Oerndrup <daor@demant.com>
The macro is intended to abstract the -fno-common compiler option
which controls the placement of uninitialized global variables. The
macro leaves it up to the toolchain to define the option.
The intent here is to abstract Zephyr's dependence on toolchains,
thus allowing for easier porting to other, perhaps commercial,
toolchains and/or usecases.
No functional change expected.
Signed-off-by: Danny Oerndrup <daor@demant.com>
The macro is intended to abstract the -imacros compiler option for
inclusion of the autoconf.h header file. The abstraction allows for a
given toolchain to decide how the inclusion of the header file is to
be done.
The intent here is to abstract Zephyr's dependence on toolchains,
thus allowing for easier porting to other, perhaps commercial,
toolchains and/or usecases.
No functional change expected.
Signed-off-by: Danny Oerndrup <daor@demant.com>
The introduced macros are placeholders for the cmake parameter warning
level.
The intent here is to abstract Zephyr's dependence on toolchains,
thus allowing for easier porting to other, perhaps commercial,
toolchains and/or usecases.
No functional change expected.
Signed-off-by: Danny Oerndrup <daor@demant.com>
Modern versions of GDB support multiple architectures
with the same binary.
In fact, Ubuntu stopped shipping a gdb-arm-none-eabi
package, gdb-multiarch should be used instead.
This fixes a failure on those systems where otherwise CMAKE_GDB will be
assigned to CMAKE_GDB-NOTFOUND.
Signed-off-by: Benjamin Valentin <benjamin.valentin@ml-pa.com>
Update the files which contain no license information with the
'Apache-2.0' SPDX license identifier. Many source files in the tree are
missing licensing information, which makes it harder for compliance
tools to determine the correct license.
By default all files without license information are under the default
license of Zephyr, which is Apache version 2.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
XCC is based on xcc, but is nothing like gcc and his many differences.
Instead of ifdeffing the gcc code with Xcc specifics, maintain it
standalone.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Nazar Kazakov