genode/repos/os/run/trace_logger.run
Martin Stein ccc67d6f68 trace_logger: convenient tracing frontend
The 'trace_logger' component can be used to easily gather, process and export
different types of tracing data. Which subjects to select is configurable via
session label policies and thread names. Which data to collect from the
selected subjects can be configured for each subject individually, for groups
of subjects, or for all subjects. The gathered data can be exported as log
output.

This is an example configuration of the 'trace_logger' component which shows
the default value for each attribute except the policy.thread and
policy.label:

! <config verbose="no"
!         session_ram="10M"
!         session_arg_buffer="4K"
!         session_parent_levels="0"
!         period_sec="5"
!         activity="no"
!         affinity="no"
!         default_policy="null"
!         default_buffer="4K">
!
!    <policy label="init -> timer" />
!    <policy label_suffix=" -> ram_fs" />
!    <policy label_prefix="init -> encryption -> "
!            thread="worker"
!            buffer="4K"
!            policy="null" />
! </config>

For more details see os/src/app/trace_logger/README.

Fixes #2654
2018-02-09 13:34:20 +01:00

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#
# Build
#
set build_components {
core
init
drivers/timer
server/dynamic_rom
app/cpu_burner
test/trace_logger
app/trace_logger
lib/trace/policy/null
lib/trace/policy/rpc_name
}
proc gpio_drv { } { if {[have_spec rpi] && [have_spec hw]} { return hw_gpio_drv }
if {[have_spec rpi] && [have_spec foc]} { return foc_gpio_drv }
return gpio_drv }
source ${genode_dir}/repos/base/run/platform_drv.inc
lappend_if [have_spec gpio] build_components drivers/gpio
append_platform_drv_build_components
build $build_components
create_boot_directory
#
# Generate config
#
append config {
<config prio_levels="2" ld_verbose="yes">
<parent-provides>
<service name="ROM"/>
<service name="IRQ"/>
<service name="IO_MEM"/>
<service name="IO_PORT"/>
<service name="PD"/>
<service name="RM"/>
<service name="CPU"/>
<service name="LOG"/>
<service name="TRACE"/>
</parent-provides>
<default-route>
<any-service> <parent/> <any-child/> </any-service>
</default-route>
<default caps="100"/>}
append_platform_drv_config
append_if [have_spec gpio] config "
<start name=\"[gpio_drv]\">
<resource name=\"RAM\" quantum=\"4M\"/>
<provides><service name=\"Gpio\"/></provides>
<config/>
</start>"
append config {
<start name="timer">
<resource name="RAM" quantum="1M"/>
<provides><service name="Timer"/></provides>
</start>
<start name="trace_logger" >
<resource name="RAM" quantum="100M"/>
<config verbose="yes"
session_ram="10M"
session_parent_levels="1"
session_arg_buffer="64K"
period_sec="3"
activity="yes"
affinity="yes"
default_policy="null"
default_buffer="1K">
<policy label_prefix="init -> cpu_burner"
thread="ep"/>
<policy label="init -> test-trace_logger"
thread="ep"
buffer="1M"
policy="rpc_name"/>
</config>
</start>
<start name="dynamic_rom">
<resource name="RAM" quantum="4M"/>
<provides><service name="ROM"/></provides>
<config verbose="yes">
<rom name="cpu_burner1.config">
<inline description="initial state">
<config percent="5"/>
</inline>
<sleep milliseconds="5000" />
<inline description="50%">
<config percent="50" />
</inline>
<sleep milliseconds="5000" />
</rom>
<rom name="cpu_burner2.config">
<inline description="initial state">
<config percent="5"/>
</inline>
<sleep milliseconds="4800" />
<inline description="100%">
<config percent="70" />
</inline>
<sleep milliseconds="2700" />
</rom>
</config>
</start>
<start name="test-trace_logger" >
<resource name="RAM" quantum="1M"/>
</start>
<start name="cpu_burner.1">
<binary name="cpu_burner"/>
<resource name="RAM" quantum="1M"/>
<configfile name="cpu_burner1.config"/>
<route>
<service name="ROM" label="cpu_burner1.config"> <child name="dynamic_rom"/> </service>
<any-service> <parent/> <any-child/> </any-service>
</route>
</start>
<start name="cpu_burner.2">
<binary name="cpu_burner"/>
<resource name="RAM" quantum="1M"/>
<configfile name="cpu_burner2.config"/>
<route>
<service name="ROM" label="cpu_burner2.config"> <child name="dynamic_rom"/> </service>
<any-service> <parent/> <any-child/> </any-service>
</route>
</start>
</config>}
install_config $config
#
# Boot modules
#
# generic modules
set boot_modules {
core
ld.lib.so
init
timer
dynamic_rom
cpu_burner
trace_logger
test-trace_logger
null
rpc_name
}
# platform-specific modules
append_platform_drv_boot_modules
lappend_if [have_spec gpio] boot_modules [gpio_drv]
build_boot_image $boot_modules
append qemu_args " -smp 4,cores=4 "
run_genode_until forever