Commit Graph

7 Commits

Author SHA1 Message Date
Jithu Joseph
d33c42a19d kernel: thread: Fix legacy symbol mixup in fp path
When CONFIG_FP_SHARING is enabled without CONFIG_LEGACY
thread.c was referencing symbols like K_TASK_GROUP_FPU
which are defined in legacy.h

Change-Id: I4bb1723f91c3e3586c5d1bf05cf23a1c0d3d5aac
Signed-off-by: Jithu Joseph <jithu.joseph@intel.com>
2017-02-03 03:20:31 +00:00
Benjamin Walsh
ed240f2796 kernel/arch: streamline thread user options
The K_<thread option> flags/options avaialble to users were hidden in
the kernel private header files: move them to include/kernel.h to
publicize them.

Also, to avoid any future confusion, rename the k_thread.execution_flags
field to user_options.

Change-Id: I65a6fd5e9e78d4ccf783f3304b607a1e6956aeac
Signed-off-by: Benjamin Walsh <walsh.benj@gmail.com>
2017-01-24 13:34:50 +00:00
Benjamin Walsh
867f8ee371 kernel: move K_ESSENTIAL from thread_state to execution_flags
The execution_flags will store the user-facing states of a thread.

This also fixes a bug where K_ESSENTIAL was already assigned to
execution_flags via the options field of
k_thread_spawn()/K_THREAD_DEFINE().

Change-Id: I91ad7a62b5d180e09eead8985ff519809959ecf2
Signed-off-by: Benjamin Walsh <walsh.benj@gmail.com>
2017-01-24 13:34:49 +00:00
David B. Kinder
ac74d8b652 license: Replace Apache boilerplate with SPDX tag
Replace the existing Apache 2.0 boilerplate header with an SPDX tag
throughout the zephyr code tree. This patch was generated via a
script run over the master branch.

Also updated doc/porting/application.rst that had a dependency on
line numbers in a literal include.

Manually updated subsys/logging/sys_log.c that had a malformed
header in the original file.  Also cleanup several cases that already
had a SPDX tag and we either got a duplicate or missed updating.

Jira: ZEP-1457

Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-01-19 03:50:58 +00:00
Anas Nashif
e38f5df522 kernel: make legacy calls depends on CONFIG_LEGACY_KERNEL
Change-Id: Id1ba4bf7cd1fafca01115ebf2913d9f3729bbff3
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2017-01-17 19:03:37 +00:00
Benjamin Walsh
f955476559 kernel/arch: optimize memory use of some thread fields
Some thread fields were 32-bit wide, when they are not even close to
using that full range of values. They are instead changed to 8-bit fields.

- prio can fit in one byte, limiting the priorities range to -128 to 127

- recursive scheduler locking can be limited to 255; a rollover results
  most probably from a logic error

- flags are split into execution flags and thread states; 8 bits is
  enough for each of them currently, with at worst two states and four
  flags to spare (on x86, on other archs, there are six flags to spare)

Doing this saves 8 bytes per stack. It also sets up an incoming
enhancement when checking if the current thread is preemptible on
interrupt exit.

Change-Id: Ieb5321a5b99f99173b0605dd4a193c3bc7ddabf4
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2017-01-09 20:52:24 +00:00
Anas Nashif
d687a95611 kernel: move kernel code to kernel/ directly
Also remove mentions of unified kernel in various places in the kernel,
samples and documentation.

Change-Id: Ice43bc73badbe7e14bae40fd6f2a302f6528a77d
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-19 14:59:35 -05:00