Commit graph

129 commits

Author SHA1 Message Date
Peter Mitsis a0e4568760 c++: Add extern "C" { } block to header files
Adds extern "C" { } blocks to header files so that they can be
safely used by C++ source files.

Change-Id: Ia4db0c36a5dac5d3de351184a297d2af0df64532
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:22 -05:00
Benjamin Walsh 3181df6db4 kernel: add per-thread errno support
Saves an errno per-thread, retrieved via _get_errno(), instead of
changing the value of a global variable during context switches to avoid
a hit to the context switch performance.

Per-arch asm implementations are provided for maximum performance.

Enabled by default, but can be disabled via the CONFIG_ERRNO option.

Change-Id: I81d57a2e318c94c68eee913ae0d4ca3a3609c7a4
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-02-05 20:24:58 -05:00
Anas Nashif 275ca60b08 Fixed file description and applied doxygen style
Removed old style file description and documnetation and apply
doxygen synatx.

Change-Id: I3ac9f06d4f574bf3c79c6f6044cec3a7e2f6e4c8
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:58 -05:00
Andrew Boie 2ec374a8df irq_offload: ARC implementation
Uses the "trap_s" exception to simulate entry into IRQ context;
offloaded functions run on the FIRQ stack.

Change-Id: I310ce42b45aca5dabd1d27e486645d23fa0b118f
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-02-05 20:24:55 -05:00
Dan Kalowsky 2a63743192 cleanup: removing NOMANUAL
The \NOMANUAL tag is a remnant from days of yore and is no longer
needed or useful.  Cleaning up the code references to this.

Change-Id: I1b8cc9c9560d1dbb711f05fa63fd23386789875c
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
2016-02-05 20:24:35 -05:00
Dan Kalowsky da67b29569 checkpatch: warning - block_comment_style
Change-Id: I6da43e41f9c6efee577b70513ec368ae3cce0144
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:33 -05:00
Javier B Perez Hernandez f7fffae8aa Change BSD-3 licenses to Apache 2
Change all the Intel and Wind River code license from BSD-3 to Apache 2.

Change-Id: Id8be2c1c161a06ea8a0b9f38e17660e11dbb384b
Signed-off-by: Javier B Perez Hernandez <javier.b.perez.hernandez@linux.intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-02-05 20:24:29 -05:00
Szymon Janc 83e0faf19f Remove not needed stack growth direction defines
All supported platforms have descending stack (growth direction is
down). To avoid confusion just remove not needed stack direction
defines.

If new platform with stack direction up is added is should be
configured by adding Kconfig option eg STACK_GROWS_UP and
CONFIG_STACK_GROWS_UP should be used in code that depends on
stack growth direction.

Change-Id: I786ff1ab28d8f8bad3f6d1bbe64defc0e81d1707
Signed-off-by: Szymon Janc <ext.szymon.janc@tieto.com>
2016-02-05 20:24:20 -05:00
Anas Nashif fc3f76d751 arc: move source files to core/
Change-Id: Ic30b2579098a54ff7ab777d9d167ab58bf08ad93
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:15:58 -05:00
Benjamin Walsh 0dcad8331b clarify use of term 'context'
The term 'context' is vague and overloaded. Its usage for 'an execution
context' is now referred as such, in both comments and some APIs' names.
When the execution context can only be a fiber or a task (i.e. not an
ISR), it is referred to as a 'thread', again in comments and everywhere
in the code.

APIs that had their names changed:

  - nano_context_id_t is now nano_thread_id_t
  - context_self_get() is now sys_thread_self_get()
  - context_type_get() is now sys_execution_context_type_get()
  - context_custom_data_set/get() are now
    sys_thread_custom_data_set/get()

The 'context' prefix namespace does not have to be reserved by the
kernel anymore.

The Context Control Structure (CCS) data structure is now the Thread
Control Structure (TCS):

  - struct ccs is now struct tcs
  - tCCS is now tTCS

Change-Id: I7526a76c5b01e7c86333078e2d2e77c9feef5364
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-02-05 20:15:27 -05:00
Anas Nashif 09821973ca Add missing includes for ARC
include nanokernel.h and misc/util.h

Those are needed after the restructuring and changes done
to public APIs.

Change-Id: Icbb1d182419e793afe7a74b14af1f31180967f39
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:14:41 -05:00
Anas Nashif f367f071b6 doxygen: add @brief and capitalize
Remove function name from comment and add @brief instead.
Also capitilize first letter.

Change-Id: Ib708b49bf02e5bc89b0066637a55874e659637e0
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:14:33 -05:00
Anas Nashif 1362e3c162 doxygen: RETURNS: -> @return
Previous comment style used RETRURNS:, use @return to comply
with javadoc style.

Change-Id: Ib1dffd92da1d97d60063ec5309b08049828f6661
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:14:32 -05:00
Anas Nashif ea0d0b220c doxygen: change comment style to match javadoc
The change replaces multiple asterisks to ** at
the beginning of comments and adds a space before
the asterisks at the beginning of lines.

Change-Id: I7656bde3bf4d9a31e38941e43b580520432dabc1
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:14:32 -05:00
Allan Stephens c29d41cab7 Rename nanokernel's nanok.h to nano_private.h
The new name better reflects that this file contains all private
nanokernel APIs that are used by various kernel subsystems.

Change-Id: I4c258d582e93753eec9e575fdb5f9f2109417a0f
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:14:26 -05:00
Benjamin Walsh 2672025969 nanokernel: add and initialize timeout fields in ccs/s_NANO
s_NANO contains the timeout queue, and each ccs needs a struct
_nano_timeout object that gets linked in the nanokernel timeout queue.

Change-Id: Iad027eaaebcffe190e95f0b9d068f047062559c2
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-02-05 20:14:22 -05:00
Benjamin Walsh f9d34ff899 nanokernel: rename struct s_CCS to struct ccs
Follow coding conventions.

Change-Id: Ie398d66e6255b76b4546aa9c827997b5dfb0743c
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-02-05 20:14:22 -05:00
Allan Stephens f5777f87bc Continue consolidation of arch-independent private nanokernel APIs
Eliminates duplication of these entries by the various architecture-
specific include files for private nanokernel APIs.

Change-Id: I711c3b42fe375d1574ce4a540142c3b507b71557
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:14:15 -05:00
Allan Stephens bff7fc17fe Begin consolidation of arch-independent private nanokernel APIs
Introduces nano_internal.h, which will declare all architecture-
independent non-public nanokernel APIs. This file is automatically
incorporated by the various architecture-specific include files
for non-public nanokernel APIs, and will not normally be included
directly by any other files.

Change-Id: I9f3de812a5747cc720fa0ff739007315e8d07dd9
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:14:15 -05:00
Allan Stephens 69555e8efd Cleanup of nanokernel's fiber scheduling routine
1) Renames routine to conform to kernel naming conventions.
2) Relocates routine declaration to include files for
   non-public nanokernel APIs.
3) Relocates routine definition so that it resides with the
   nanokernel's other fiber manipulation routines.
4) Eliminates an unnecessary argument to the routine.

Change-Id: Ia139280dfea36262ca8417708786b4989f3eaee1
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:14:15 -05:00
Allan Stephens 0c3fd0afc2 Relocate declarations of _nano_fiber_swap()
These now appear in the files which declare other non-public
nanokernel APIs.

Change-Id: Iea01d6de44851a08b308004b2c3104c08b020970
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:14:15 -05:00
Peter Mitsis 40b5200c73 Optimizations to _NewContext() and _NewContextInternal()
Since the address of the new context is known before _NewContext() is invoked
(due to it being passed a properly aligned stack), there is no longer any
need for _NewContext to return the pointer to the context.

Furthermore, as a direct result of the properly aligned stack, the pointer to
the new context does not need to be passed as a separate parameter since it
will always match the passed stack pointer.

Change-Id: Ie57a9c4ad17f6f13e8b3f659cd701d4f8950ea97
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:14:13 -05:00
Dan Kalowsky c02dd34277 Renaming include/nanokernel to include/arch
Renaming the directory include/nanokernel to be include/arch, which
better reflects the real nature of the directory and the contents
inside.

Change-Id: I2bc33ebc6715e2f0403227a558279fdf52398ade
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
2016-02-05 20:14:12 -05:00
Yonattan Louise 4d19693b33 Rename _NanoKernel to _nanokernel
Updating global variable's name to follow a consistent naming convention.

Change accomplished with the following script:

   #!/bin/bash
   echo "Searching for ${1} to replace with ${2}"
   find ./ \( -name "*.[chs]" -o -name "sysgen.py" -o -name "*.kconf" -o -name "*.arch" \) \
            ! -path "./host/src/genIdt/*" \
            ! -path "*/outdir/*" | xargs sed -i 's/\b'${1}'\b/'${2}'/g';

Change-Id: Icf5900c057f3412d3c7725c07176fe125c374958
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
2016-02-05 20:13:53 -05:00
Allan Stephens b32f81dbe4 Rename "activeLink" field of CCS to "next_context"
Modifies the name of this field to make its purpose clearer,
and to align with coding conventions.

Change-Id: I8de78df1a0459122067d650130e01078afb5af8a
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:13:45 -05:00
Allan Stephens c7661eb981 Transform HOST_TOOLS_SUPPORT config option to CONTEXT_MONITOR
Revises this option to make its purpose clearer, and to align it
with other experimantal monitoring-type configuration options.

Change-Id: I593bb7560b5a0544eb05affaa07b59dd78ea907e
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:13:45 -05:00
Yonattan Louise e7c1f2c20b Rename _InterruptStack to _interrupt_stack
Updating global variable's name to follow a consistent naming convention.

Change accomplished with the following script:

   #!/bin/bash
   echo "Searching for ${1} to replace with ${2}"
   find ./ \( -name "*.[chs]" -o -name "sysgen.py" -o -name "*.kconf" \) \
            ! -path "./host/src/genIdt/*" \
            ! -path "*/outdir/*" | xargs sed -i 's/\b'${1}'\b/'${2}'/g';

Change-Id: I36709c9833279f05a186a5c00b996d242c843d4c
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
2016-02-05 20:13:42 -05:00
Dan Kalowsky bcddb11e8c Rename _InsertCCS to _insert_ccs
Updating nano kernel functions to follow a consistent naming convention.
Part of that process is the removal of camelCase naming conventions for the
preferred_underscore_method.

Change accomplished with the following script:

#!/bin/bash
echo "Searching for ${1} to replace with ${2}"
find . -type f \( -iname \*.c -o -iname \*.h -o -iname \*.s -o -iname \*.kconf \) \
       -not \( -path host/src/genIdt -prune \) \   \
       -not \( -path host/src/gen_tables -prune \) \
       -print | xargs sed -i "s/"${1}"/"${2}"/g"

Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
2016-02-05 19:45:35 -05:00
Inaky Perez-Gonzalez 8ddf82cf70 First commit
Signed-off-by:  <inaky.perez-gonzalez@intel.com>
2015-04-10 16:44:37 -07:00