zephyr

History

James Harris b10428163a kernel: sem: add K_SEM_MAX_LIMIT Currently there is no way to distinguish between a caller explicitly asking for a semaphore with a limit that happens to be `UINT_MAX` and a semaphore that just has a limit "as large as possible". Add `K_SEM_MAX_LIMIT`, currently defined to `UINT_MAX`, and akin to `K_FOREVER` versus just passing some very large wait time. In addition, the `k_sem_*` APIs were type-confused, where the internal data structure was `uint32_t`, but the APIs took and returned `unsigned int`. This changes the underlying data structure to also use `unsigned int`, as changing the APIs would be a (potentially) breaking change. These changes are backwards-compatible, but it is strongly suggested to take a quick scan for `k_sem_init` and `K_SEM_DEFINE` calls with `UINT_MAX` (or `UINT32_MAX`) and replace them with `K_SEM_MAX_LIMIT` where appropriate. Signed-off-by: James Harris <james.harris@intel.com>		2021-03-05 08:13:53 -06:00
..
src	kernel: sem: add K_SEM_MAX_LIMIT	2021-03-05 08:13:53 -06:00
CMakeLists.txt	tests: make find_package(Zephyr...) REQUIRED	2020-05-29 10:47:25 +02:00
Kconfig
prj.conf
README.txt
testcase.yaml	tests: arch: arm: do not build/run test suites for _ns boards	2020-09-15 18:04:11 -05:00

README.txt

Title: Installation of ISRs Directly in the Vector Table (ARM Only)

Description:

Verify a project can install ISRs directly in the vector table. Only for
ARM Cortex-M targets.

---------------------------------------------------------------------------

Building and Running Project:

This project outputs to the console.  It can be built and executed on QEMU as
follows:

    make run

---------------------------------------------------------------------------

Troubleshooting:

Problems caused by out-dated project information can be addressed by
issuing one of the following commands then rebuilding the project:

    make clean          # discard results of previous builds
                        # but keep existing configuration info
or
    make pristine       # discard results of previous builds
                        # and restore pre-defined configuration info

---------------------------------------------------------------------------

Sample Output:

tc_start() - Test Cortex-M3 IRQ installed directly in vector table
isr0 ran!
isr1 ran!
isr2 ran!
PASS - main.
===================================================================
PROJECT EXECUTION SUCCESSFUL