zephyr

History

Anas Nashif 2bc9d69981 build: abstract emulation and replace qemu goal with run This will replace the current goal of 'make qemu' with 'make run' and moves Qemu handling into its own file and into the boards instead of being architecture specific. We should be able to add new boards that support some other type of emulation (by adding scripts/Makefile.<emu type>) and allow the board to define their own options for the use type of emulation. 'make qemu' will still work, however it will be deprecated, starting with this commit it is recommended to use 'make run'. Jira: ZEP-359 Change-Id: I1cacd56b4ec09421a58cf5d010e22e9035214df6 Signed-off-by: Anas Nashif <anas.nashif@intel.com>		2017-01-10 20:20:47 +00:00
..
src	logging: move event_logger to subsys/logging	2016-12-25 14:34:43 -05:00
Makefile	…
README.txt	build: abstract emulation and replace qemu goal with run	2017-01-10 20:20:47 +00:00
prj.conf	kernel: add LEGACY_KERNEL option	2017-01-09 19:42:13 +00:00
prj.mdef	…
prj_unified.conf	kernel: add LEGACY_KERNEL option	2017-01-09 19:42:13 +00:00
sample.tc	…
testcase.ini	samples: tests: tag all legacy test cases and samples	2016-11-30 21:45:22 +00:00

README.txt

Title: Kernel Event Logger Sample

Description:

This sample uses the philosopher sample with two additional tasks to show the
profiling data on different system's states. The fork manager task controls the
fork's availibilty. The worker task performs intermitently heavy processing,
allowing or preventing the system to go idle.

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Building and Running Project:

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

    make run

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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


Problems with QEMU on ARM:
Qemu v2.1 for ARM platform do not support tickless idle. If run the sample
project in QEMU with the CONFIG_TICKLESS_IDLE option enabled, the project
could present an erratic behaviour.

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Sample Output:

Philosopher 1 EATING
Philosopher 2 THINKING
Philosopher 3 THINKING
Philosopher 4 EATING
Philosopher 5 THINKING




Dropped events occurred: 0

Context switch summary
Context Id   Amount of context switches
 1067512     17339
 1068536     30067
 1075704     4
 1064184     350
 1074680     1986
 1073656     2018
 1072632     2623
 1071608     2630
 1070584     1983
 1069560     1340