Commit Graph

258 Commits

Author SHA1 Message Date
Andy Ross cfeb07eded kernel/timeout: Enable 64 bit timeout precision
Add a CONFIG_TIMEOUT_64BIT kconfig that, when selected, makes the
k_ticks_t used in timeout computations pervasively 64 bit.  This will
allow much longer timeouts and much faster (i.e. more precise) tick
rates.  It also enables the use of absolute (not delta) timeouts in an
upcoming commit.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2020-03-31 19:40:47 -04:00
Sebastian Bøe 0d3d7251fc cmake: Fix syscall dependencies
Custom commands must depend on both the input files and the wrapper
targets for the input files.

See Sam Thursfield's blog post about "CMake: dependencies between
targets and files and custom commands" for why.

This fixes #23562

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2020-03-31 10:20:38 -04:00
Sebastian Bøe d9cca03036 cmake: Remove superflous dependency of obj_list
OBJ_LIST depends on ZEPHYR_PREBUILT_EXECUTABLE which again
transitively depends on PARSE_SYSCALLS_TARGET, so adding this
dependency is unnecessary.

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2020-03-31 10:20:38 -04:00
Torsten Rasmussen d7862cf776 cmake: using ${ZEPHYR_BASE} instead of $ENV{ZEPHYR_BASE}
With the introduction of ZephyrConfig.cmake all parts of CMake code
should rely on the CMake ZEPHYR_BASE variable instead of the environment
setting.

This ensures that after the first CMake invocation, then all subsequent
invocation in same build folder will use same zephyr base.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2020-03-27 16:23:46 +01:00
Carles Cufi 1c79096559 ext: debug: Move ctf_map.h to subsys/tracing/ctf
To complete the removal of the ext/ folder, move the ctf_map.h file to
where it really belongs, which is subsys/tracing/ctf.

Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
2020-03-20 22:56:19 -04:00
Andrew Boie 28be793cb6 kernel: delete separate logic for priv stacks
This never needed to be put in a separate gperf table.
Privilege mode stacks can be generated by the main
gen_kobject_list.py logic, which we do here.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2020-03-17 20:11:27 +02:00
Andrew Boie 2dc2ecfb60 kernel: rename struct _k_object
Private type, internal to the kernel, not directly associated
with any k_object_* APIs. Is the return value of z_object_find().
Rename to struct z_object.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2020-03-17 20:11:27 +02:00
Andrew Boie c1c54b13a6 build: prevent subsystems.json from being gen
Actual files make terrible dependency targets in CMake.
Wrap the generation of subsystems.json into a custom
target to get around this. Fixes a problem where
parse_syscalls.py was being called multiple times.

Fixes: #23504

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2020-03-17 18:07:54 +02:00
Corey Wharton ccd15df510 scripts: Dynamically add driver subsystems to subsystems list
This change extends the parse_syscalls.py script to scan for a
__subsystem sentinal added to driver api declarations. It thens
generates a list that is passed into gen_kobject_list.py to extend
the subsystems list. This allows subsystems to be declared in the
code instead of a separate python list and provides a mechanism for
defining out-of-tree subsystems.

Signed-off-by: Corey Wharton <coreyw7@fb.com>
2020-03-11 17:13:39 +02:00
Sebastian Bøe f17428a009 cmake: Have gperf be opt-out instead of mandatory
gperf is only used when CONFIG_USERSPACE is enabled. Users that use
arch's that don't support CONFIG_USERSPACE, or happen to not never
enable CONFIG_USERSPACE should not be artificially required to install
gperf.

This change makes gperf optional by moving it's presence-check to it's
usage.

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2020-02-08 09:13:45 -05:00
Ulf Magnusson de42aea18f kconfig/cmake: Check that one of the CONFIG_<arch> symbols is set
All SoCs must now 'select' one of the CONFIG_<arch> symbols. Add an
ARCH_IS_SET helper symbol that's selected by the arch symbols and
checked in CMake, printing a warning otherwise.

Might save people some time until they're used to the new scheme.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2020-02-08 00:50:08 -06:00
Sebastian Bøe fdac7b3319 cmake: Add target for generating header files
Before C sources can be compiled any generated header that they
include must be generated. Currently, the target 'offsets_h' happens
to depend directly or indirectly on all generated headers.

This means that to compile safely, one can simply depend on
'offsets_h'. But this is coincidental and might not be true in the
future.

To be able to safely depend on a target that represents all generated
headers being ready we introduce the target
'zephyr_generated_headers'.

Any third-party build scripts can now safely depend on
'zephyr_generated_headers' and be protected from any internal changes
to the build system, like the removal of offsets_h.

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2020-01-29 11:44:57 -06:00
Peter Bigot 235a5e5e4b cmake: remove include/drivers from include lists
Files that need something from this directory should be using the
prefix, e.g. <drivers/sensor.h> instead of just <sensor.h>.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2020-01-26 17:52:12 +01:00
Sebastian Bøe d3a8fd40b9 cmake: Add option for exporting build metadata to Make
Add an opt-in feature that will generate a Makefile with build
variables like CC, and KBUILD_CFLAGS for consumption by third-party
Make-based build systems.

This emulates the 'outputexports' target that KBuild supported and is
supported for the same reasons that KBuild supported it. Easier
integration with third-party build systems.

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2020-01-23 15:09:12 -05:00
Sebastian Bøe 56f6e35e47 cmake: Support passing syscall include directories through CMake
Introduce the CMake variable SYSCALL_INCLUDE_DIRS to support
out-of-tree syscall declarations.

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2020-01-22 09:26:12 -05:00
Ulf Magnusson 4e85006ba4 dts: Rename generated_dts_board*.{h,conf} to devicetree*.{h,conf}
generated_dts_board.h is pretty redundant and confusing as a name. Call
it devicetree.h instead.

dts.h would be another option, but DTS stands for "devicetree source"
and is the source code format, so it's a bit confusing too.

The replacement was done by grepping for 'generated_dts_board' and
'GENERATED_DTS_BOARD'.

Two build diagram and input-output SVG files were updated as well, along
with misc. documentation.

hal_ti, mcuboot, and ci-tools updates are included too, in the west.yml
update.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2020-01-17 17:57:59 +01:00
Vincent Wan 180b4df229 soc: kconfig: add SOC_DEPRECATED_RELEASE
Adding a Kconfig parameter so that we can indicate an SoC is to be
deprecated, similar to what is being done for BOARD_DEPRECATED_RELEASE.

Signed-off-by: Vincent Wan <vincent.wan@linaro.org>
2020-01-13 10:21:12 -05:00
Vincent Wan a2bc514653 boards: Kconfig: rename BOARD_DEPRECATED to BOARD_DEPRECATED_RELEASE
Renaming this Kconfig option given it corresponds to a version string
for a particular release.

Signed-off-by: Vincent Wan <vincent.wan@linaro.org>
2020-01-13 10:21:12 -05:00
Torsten Rasmussen 4b68f959b5 cmake: locating zephyr modules in CMAKE_BINARY_DIR
This commit restores the old behaviour of locating Zephyr modules under
CMAKE_BINARY_DIR instead of CMAKE_CURRENT_BINARY_DIR during building of
Zephyr modules.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2020-01-09 14:33:36 -05:00
Håkon Øye Amundsen c9a2a5e7fb scripts: cmake: move print from python to cmake
Prior to this all hex files included in a merge would
be printed on every invokation of cmake.

Allow the user to explicitly require this information
by moving the print to a VERBOSE-only cmake message.

Signed-off-by: Håkon Øye Amundsen <haakon.amundsen@nordicsemi.no>
2020-01-03 08:20:08 -05:00
Jack Dähn e41bdcd545 cmake: Fix CMAKE_BUILD_TYPE and OPTIMIZATION_FLAG match check
The check introduced in #18777 uses incorrect CMake syntax.
IN_LIST requires the list variable name, not its content.

Signed-off-by: Jack Dähn <jack@jkdhn.me>
2019-12-20 20:26:20 -05:00
Sebastian Bøe fa8f9d423d cmake: assert: Reduce the verbosity of the assert warning
The warning about CONFIG_ASSERT being enabled is too loud. This patch
reduces it's verbosity and omits the explanation about performance as
this is believed to be obvious.

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2019-12-18 17:11:02 +01:00
Torsten Rasmussen 5a703c8d58 cmake: use zephyr_library_app_memory for mem partition placement
This commit removes the hard coded mbed TLS library name
`lib..__modules__crypto__mbedtls.a` in top-level CMakeLists.txt file
and instead uses zephyr_library_app_memory function.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2019-12-17 13:05:36 -05:00
Torsten Rasmussen 08eabb83b2 cmake: Zephyr module processing set modules path
This commit introduces the variable:
ZEPHYR_${MODULE}_MODULE_DIR that can be used for modules to obtain
locations of other modules.

As example: a module which requires the knowledge of mcuboot con now
fetch this information using ZEPHYR_MCUBOOT_MODULE_DIR.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2019-12-10 17:43:55 +01:00
Andrew Boie c1863875b7 ztest: fix ztest_1cpu_user_unit_test()
The start/stop functions do a whole pile of supervisor-
only stuff; resolve this by making them ztest-specific
system calls.

Fixes: #20927

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2019-12-09 12:40:47 -05:00
Flavio Ceolin f4adf107f3 syscalls: Remove gen_syscall_header.py
gen_syscall_header.py is not longer necessary, it was just creating a
file including syscall.h. This header is now included directly by
gen_syscalls.py.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
2019-12-09 16:08:50 +01:00
Ioannis Glaropoulos d58f8bee79 cmake: copy globals from libc_nano.a to z_libc_partition
When building with NEWLIB_LIBC_NANO we need to copy
the globals from libc_nano.a into application memory
partition z_libc_partition, exactly as we do for
libc.a globals. This is required so that these globals
are accessible by nPRIV code, when building with
user mode support.

Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
2019-11-18 09:38:29 -06:00
Stephanos Ioannidis 2d7460482d headers: Refactor kernel and arch headers.
This commit refactors kernel and arch headers to establish a boundary
between private and public interface headers.

The refactoring strategy used in this commit is detailed in the issue

This commit introduces the following major changes:

1. Establish a clear boundary between private and public headers by
  removing "kernel/include" and "arch/*/include" from the global
  include paths. Ideally, only kernel/ and arch/*/ source files should
  reference the headers in these directories. If these headers must be
  used by a component, these include paths shall be manually added to
  the CMakeLists.txt file of the component. This is intended to
  discourage applications from including private kernel and arch
  headers either knowingly and unknowingly.

  - kernel/include/ (PRIVATE)
    This directory contains the private headers that provide private
   kernel definitions which should not be visible outside the kernel
   and arch source code. All public kernel definitions must be added
   to an appropriate header located under include/.

  - arch/*/include/ (PRIVATE)
    This directory contains the private headers that provide private
   architecture-specific definitions which should not be visible
   outside the arch and kernel source code. All public architecture-
   specific definitions must be added to an appropriate header located
   under include/arch/*/.

  - include/ AND include/sys/ (PUBLIC)
    This directory contains the public headers that provide public
   kernel definitions which can be referenced by both kernel and
   application code.

  - include/arch/*/ (PUBLIC)
    This directory contains the public headers that provide public
   architecture-specific definitions which can be referenced by both
   kernel and application code.

2. Split arch_interface.h into "kernel-to-arch interface" and "public
  arch interface" divisions.

  - kernel/include/kernel_arch_interface.h
    * provides private "kernel-to-arch interface" definition.
    * includes arch/*/include/kernel_arch_func.h to ensure that the
     interface function implementations are always available.
    * includes sys/arch_interface.h so that public arch interface
     definitions are automatically included when including this file.

  - arch/*/include/kernel_arch_func.h
    * provides architecture-specific "kernel-to-arch interface"
     implementation.
    * only the functions that will be used in kernel and arch source
     files are defined here.

  - include/sys/arch_interface.h
    * provides "public arch interface" definition.
    * includes include/arch/arch_inlines.h to ensure that the
     architecture-specific public inline interface function
     implementations are always available.

  - include/arch/arch_inlines.h
    * includes architecture-specific arch_inlines.h in
     include/arch/*/arch_inline.h.

  - include/arch/*/arch_inline.h
    * provides architecture-specific "public arch interface" inline
     function implementation.
    * supersedes include/sys/arch_inline.h.

3. Refactor kernel and the existing architecture implementations.

  - Remove circular dependency of kernel and arch headers. The
   following general rules should be observed:

    * Never include any private headers from public headers
    * Never include kernel_internal.h in kernel_arch_data.h
    * Always include kernel_arch_data.h from kernel_arch_func.h
    * Never include kernel.h from kernel_struct.h either directly or
     indirectly. Only add the kernel structures that must be referenced
     from public arch headers in this file.

  - Relocate syscall_handler.h to include/ so it can be used in the
   public code. This is necessary because many user-mode public codes
   reference the functions defined in this header.

  - Relocate kernel_arch_thread.h to include/arch/*/thread.h. This is
   necessary to provide architecture-specific thread definition for
   'struct k_thread' in kernel.h.

  - Remove any private header dependencies from public headers using
   the following methods:

    * If dependency is not required, simply omit
    * If dependency is required,
      - Relocate a portion of the required dependencies from the
       private header to an appropriate public header OR
      - Relocate the required private header to make it public.

This commit supersedes #20047, addresses #19666, and fixes #3056.

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
2019-11-06 16:07:32 -08:00
Sebastian Bøe e50e12d8d1 cmake: Check if match between CMAKE_BUILD_TYPE and OPTIMIZATION_FLAG
In CMake projects, 'CMAKE_BUILD_TYPE' usually determines the
optimization flag, but in Zephyr it is determined through Kconfig.

To avoid confusing users we now give a warning if there is a mismatch
between the CMAKE_BUILD_TYPE and the optimization flag.

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2019-11-06 21:18:43 +01:00
Marc Herbert eddbf3c986 cmake: -fmacro-prefix-map=${WEST_TOPDIR}=WEST_TOPDIR
Commit 28a5657f1f and f67dcdbdf8 stopped ZEPHYR_BASE and
CMAKE_SOURCE_DIR from leaking into __FILE__ and other macros.
WEST_TOPDIR was still missing. Add it now that the new 'west topdir'
command has been implemented in
https://github.com/zephyrproject-rtos/west/pull/311

If the west version is too old then do nothing; same as before.

Any ASSERT in a zephyr module outside ZEPHYR_BASE is enough to test
this. One example:

$ZEPHYR_BASE/sanitycheck -T $ZEPHYR_BASE/tests/posix/fs/ -p qemu_x86 -v

readelf --string-dump=.rodata.disk_status.str1.1 {} \
  $(find sanity-out -name zfs_diskio.c.obj | head -n 1)

String dump of section '.rodata.disk_status.str1.1':

  [     0]  WEST_TOPDIR/modules/fs/fatfs/zfs_diskio.c
  [    2a]  pdrv < ((long) (((int) sizeof(char[1 - 2 * !(!__built....
  [    de]  ASSERTION FAIL [%s] @ %s:%d^J

Signed-off-by: Marc Herbert <marc.herbert@intel.com>
2019-11-06 21:17:56 +01:00
Andrew Boie 9ff64bb497 userspace: don't split args on 64-bit systems
None of the splitting logic is needed if 64-bit return
values or parameters fit inside a register.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2019-11-06 09:04:16 -08:00
Torsten Rasmussen 1f9723af19 cmake: app mem partion flexibility
This commit allows a more dynamic approach for specifying that a zephyr
library must be placed in a dedicated app memomory partition.
This is still done by defining the partition in code using
K_APPMEM_PARTITION_DEFINE, but now the zephyr library can be added to
the generation of partition table using zephyr_library_app_memory
instead of modifying the overall zephyr/CMakeLists.txt file.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2019-11-05 08:44:26 -08:00
Torsten Rasmussen f0fa7b850c cmake: zephyr_library_amend feature
This commit introduces the cmake extension zephyr_library_amend.

This function allows for adding files in an out-of-tree Zephyr module
to a zephyr library created in zephyr repo CMake files.

As example:
drivers/entropy/CMakeLists.txt creates an zephyr library as:
zephyr_library()
only available to zephyr itself.

The amend function allows to amend to such a lib, by creating a
CMakeLists.txt file following identical folder structure in a Zephyr
Module:
<zephyr_module_oot>/drivers/entropy/CMakeLists.txt
zephyr_library_amend()
zephyr_library_sources() # Sources are amended to the original library

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2019-10-21 17:44:08 +02:00
Sebastian Bøe bb6a6e8fcc cmake: Move the invocation of 'project' earlier
The CMake documentation for 'project' states "Call the project()
command near the top of the top-level CMakeLists.txt". Meaning, it
should be run as early as possible.

An obscure internal error was observed when 'project' was located in
zephyr/CMakeLists.txt and was observed to be fixed after moving
'project' earlier, hence this patch that moves it earlier.

Invoking project depends on knowing information about the toolchain so
it is placed after target_toolchain.cmake.

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2019-10-01 06:26:03 -05:00
Sebastian Bøe 6212ec9612 cmake: Cache the 'toolchain-is-ok' test as well
All compiler flag checks are cached for build-time performance reasons
except for the test that tests the toolchain itself.

It is believed that this test was left uncached because at the time,
there was not enough trust in the caching mechanism. But time has
shown that the caching mechanism is safe. So cache this test as well.

This improves build-time performance and also reduces noise in the
logs.

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2019-09-07 10:25:12 -04:00
Sebastian Bøe 71281292fb cmake: Suppress west module logging
The log from CMake invocation's are now dominated by west
modules. This noise can hide important warnings.

To fix this we drop the logging.

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2019-09-07 10:20:01 -04:00
Kumar Gala d541913fc5 cmake: Build HEX files if flash runner is openocd
The openocd flash runner now expects a hex file, so always build a HEX
image if the runner is set to openocd.

Fixes #18181

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-08-16 13:41:56 -05:00
Sebastian Bøe 5962aab42f cmake: Fix dependency between offset.c.obj and offsets.h
The command for generating offsets.h has only been depending on the
target for offsets.c.obj, and not the file offsets.c.obj itself. Both
are needed, as explained in "CMake: dependencies between targets and
files and custom commands"[0].

This patch adds the dependency and fixes #18301

[0] https://tinyurl.com/y2hgzjhx

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2019-08-15 17:47:21 +02:00
Paul Sokolovsky 1c6a7d78ef CMakeLists.txt: Call toolchain_cc_nostdinc() at the end
To let any other zephyr_system_include_directories() directives
act first and get these paths in an order allowing Zephyr's stuff
override compiler headers.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2019-08-08 14:31:35 +02:00
Danny Oerndrup 9336e3ee2c cmake: Toolchain abstraction: Abstraction of binary tool, strip.
This abstracts the interface for generation of the strip command
line, by naming the desired actions instead of directly setting the
command parameters, which then opens up for other binary tool sets
which may require different arguments to achieve the desired result.

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>
2019-08-02 13:05:59 +02:00
Danny Oerndrup 919df016f9 cmake: Toolchain abstraction: Abstraction of binary tool, readelf.
This abstracts the interface for generation of the readelf command
line, by naming the desired actions instead of directly setting the
command parameters, which then opens up for other binary tool sets
which may require different arguments to achieve the desired result.

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>
2019-08-02 13:05:59 +02:00
Danny Oerndrup 0760a53d2c cmake: Toolchain abstraction: Abstraction of binary tool, objdump.
This abstracts the interface for generation of the objdump command
line, by naming the desired actions instead of directly setting the
command parameters, which then opens up for other binary tool sets
which may require different arguments to achieve the desired result.

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>
2019-08-02 13:05:59 +02:00
Danny Oerndrup 51634cd661 cmake: Toolchain abstraction: Abstraction of binary tool, objcopy.
This abstracts the interface for generation of the objcopy command
line, by naming the desired actions instead of directly setting the
command parameters, which then opens up for other binary tool sets
which may require different arguments to achieve the desired result.

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>
2019-08-02 13:05:59 +02:00
Danny Oerndrup c41e712c6f cmake: Toolchain abstraction: Abstraction of print memory usage.
The method for getting a memory usage report printed during build, is
based on a GNU linker (ld) option flag, and thus is not necessarily
supported by other toolchain binary tools.
The introduced cmake macro allows for a given toolchain to specify how
the memory usage report is to be generated, and whether the command for
generation, if any, is to be added to the post_build_commands and the
post_build_byproducts lists of the top level CMakeLists.txt

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>
2019-07-31 11:09:35 +02:00
Danny Oerndrup e0569ac2dc cmake: Toolchain abstraction: Abstract compiler flag for add debug info
The macro, toolchain_cc_produce_debug_info, adds the compiler specific
flag for enabling the production of debugging information in the
toolchain native format.

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>
2019-07-29 16:59:09 +02:00
Carles Cufi 3ad1f27efc cmake: Encode and decode in UTF-8 in build system
In order to make sure that the build works in folders that require a UTF
encoding, make sure that both CMake and the various Python scripts that
interact with each other on files use the same encoding, in this case
UTF-8.

Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
2019-07-18 16:50:08 +02:00
Andy Ross 50b78f08ea cmake: Remove check_link_map.py
This script is looking for a hyperspecific error (mismatched padding
when linking into two simultaneous output sections) that bit us once,
in an era where the linker scripts were less unified.  We haven't seen
it crop up since, and multiple platforms have changed the way they do
this anyway.

It's needless complexity.  Junk it.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2019-07-14 04:54:29 -07:00
Nicolas Pitre b86aa65723 CMakeLists.txt: parse zephyr_stdint.h after compiler specific flags
The zephyr_stdint.h file enforces Zephyr specific policies on the
compilation environment. Let's give compilers a chance to provide
definitions of their own via TOOLCHAIN_C_FLAGS prior the inclusion
of zephyr_stdint.h.

Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
2019-07-03 06:09:16 -04:00
Nicolas Pitre f32330b22c stdint.h: streamline type definitions
Compilers (at least gcc and clang) already provide definitions to
create standard types and their range. For example, __INT16_TYPE__ is
normally defined as a short to be used with the int16_t typedef, and
__INT16_MAX__ is defined as 32767. So it makes sense to rely on them
rather than hardcoding our own, especially for the fast types where
the compiler itself knows what basic type is best.

Using compiler provided definitions makes even more sense when dealing
with 64-bit targets where some types such as intptr_t and size_t must
have a different size and range. Those definitions are then adjusted
by the compiler directly.

However there are two cases for which we should override those
definitions:

* The __INT32_TYPE__ definition on 32-bit targets vary between an int
  and a long int depending on the architecture and configuration.
  Notably, all compilers shipped with the Zephyr SDK, except for the
  i586-zephyr-elfiamcu variant, define __INT32_TYPE__ to a long int.
  Whereas, all Linux configurations for gcc, both 32-bit and 64-bit,
  always define __INT32_TYPE__ as an int. Having variability here is
  not welcome as pointers to a long int and to an int are not deemed
  compatible by the compiler, and printing an int32_t defined with a
  long using %d makes the compiler to complain, even if they're the
  same size on 32-bit targets. Given that an int is always 32 bits
  on all targets we might care about, and given that Zephyr hardcoded
  int32_t to an int before, then we just redefine __INT32_TYPE__ and
  derrivatives to an int to keep the peace in the code.

* The confusion also exists with __INTPTR_TYPE__. Looking again at the
  Zephyr SDK, it is defined as an int, even even when __INT32_TYPE__ is
  initially a long int. One notable exception is i586-zephyr-elf where
  __INTPTR_TYPE__ is a long int even when using -m32. On 64-bit targets
  this is always a long int. So let's redefine __INTPTR_TYPE__ to always
  be a long int on Zephyr which simplifies the code, works for both
  32-bit and 64-bit targets, and mimics what the Linux kernel does.
  Only a few print format strings needed adjustment.

In those two cases, there is a safeguard to ensure the type we're
enforcing has the right size and fail the build otherwise.

Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
2019-06-25 23:29:22 -04:00
Anas Nashif f2cb20c772 docs: fix misspelling across the tree
Found a few annoying typos and figured I better run script and
fix anything it can find, here are the results...

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-19 15:34:13 -05:00