Commit 3c6aef08 authored by Per's avatar Per

bare1

parent 0ec969ef
build_targets=<?xml version\="1.0" encoding\="UTF-8" standalone\="no"?>\n<build_targets xmlns\="com.github.rustdt.ide.core">\n<target auto_enabled\="false" config\="build" n_enabled\="false" version2\="true">\n<command_invocation append_env\="true" command_arguments\=" xargo build --example bare0&\#10;">\n<env_vars/>\n</command_invocation>\n</target>\n<target auto_enabled\="true" config\="check" n_enabled\="false" version2\="true">\n<command_invocation append_env\="true" command_arguments\="xargo build --example bare0&\#10;">\n<env_vars/>\n</command_invocation>\n</target>\n<target auto_enabled\="false" config\="clean" n_enabled\="false" version2\="true"/>\n</build_targets>\n
build_targets=<?xml version\="1.0" encoding\="UTF-8" standalone\="no"?>\n<build_targets xmlns\="com.github.rustdt.ide.core">\n<target auto_enabled\="false" config\="build" n_enabled\="false" version2\="true">\n<command_invocation append_env\="true" command_arguments\=" xargo build --example bare0&\#10;">\n<env_vars/>\n</command_invocation>\n</target>\n<target auto_enabled\="false" config\="check" n_enabled\="false" version2\="true">\n<command_invocation append_env\="true" command_arguments\="xargo build --example bare0&\#10;">\n<env_vars/>\n</command_invocation>\n</target>\n<target auto_enabled\="false" config\="clean" n_enabled\="false" version2\="true"/>\n</build_targets>\n
eclipse.preferences.version=1
format_onSave=true
racer_path=/home/pln/.cargo/bin/racer
......
//! bare1.rs
//! Simple bare metal application
//! Simple bare metal tracing
// feature to ensure symbols to be linked
#![feature(used)]
......@@ -7,30 +7,84 @@
#![no_std]
// API to the ARM Cortex M Peripherals
//extern crate cortex_m;
extern crate cortex_m;
// Minimal runtime / startup for Cortex-M microcontrollers
extern crate cortex_m_rt;
// Convenient tracing over semihosting and ITM
// #[macro_use]
// extern crate cortex_m_debug;
#[macro_use]
extern crate cortex_m_debug;
#[inline(never)]
fn main() {
// ITM trace (fast)
// start `itmdump` before `openocd`
// ipln!("ITM: Hello World");
ipln!("ITM: Hello World");
// semihosting trace (slow)
// sprintln!("SEMIHOSTING: Hello World");
sprintln!("SEMIHOSTING: Hello World");
// to prevent returning
loop {
// cortex_m::asm::nop();
// cortex_m::asm::bkpt();
}
}
// 1. build and run the application
// start ITM tracing to console
// > itmdump /tmp/itm.log
// start openocd (in my case...)
// > openocd -f interface/stlink.cfg -f target/stm32f4x.cfg
//
// when debugging the application it should get stuck in the
// loop, (press pause/suspend to verify this).
// what is the output in the ITM console
// ** your answer here **
//
// what is the output in the semihosting (openocd) console
// ** your answer here **
//
// commit your answers (bare1_1)
//
// 2. inspecting the assembly
// what is shown in the Dissasmbly view, what instruction is executing
// (if you are NOT under eclipse, then give the command in gdb console
// (gdb) disassemble
// ** your answer here **
//
// commit your answers (bare1_2)
//
// 3. now remove the comment line 30.
// rebuild and debug, pause the program.
// what is shown in the Dissasmbly view, what instruction is executing
// ** your answer here **
//
// commit your answers (bare1_3)
//
// 4. now remeve the comment line 31
// what is shown in the Dissasmbly view, what instruction is executing
// ** your answer here **
//
// commit your answers (bare1_4)
//
// 5. release mode (optimized builds)
// rebuild bare1 in release (optimized mode)
// compare the generated assembly for the loop
// between the dev (unoptimized) and release (optimized) build
// in Atollic/eclipse the easiest way is to build the target using
// > xargo build --release --examples
// in gdb console
// > file target/thumbv7em-none-eabihf/release/examples/bare1
// so l
// (which sources/executes the gbd script l, which loads the file)
// c
// (to continue executing)
// ** your answer here **
//
// commit your answers (bare1_5)
// As we are not using interrupts, we just register a dummy catch all handler
#[link_section = ".vector_table.interrupts"]
#[used]
......
monitor reset init
\ No newline at end of file
monitor reset init
\ No newline at end of file
monitor reset init
load
monitor reset init
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<launchConfiguration type="com.atollic.hardwaredebug.launch.launchConfigurationType">
<stringAttribute key="com.atollic.hardwaredebug.jlink_common.cpu_core" value="Cortex-M"/>
<stringAttribute key="com.atollic.hardwaredebug.jlink_common.device" value="STM32F401RE"/>
<stringAttribute key="com.atollic.hardwaredebug.jlink_common.endian" value="little"/>
<stringAttribute key="com.atollic.hardwaredebug.jlink_common.init_speed" value="4000"/>
<booleanAttribute key="com.atollic.hardwaredebug.jlink_common.jlink_check_serial_number" value="false"/>
<stringAttribute key="com.atollic.hardwaredebug.jlink_common.jlink_script_path" value=""/>
<booleanAttribute key="com.atollic.hardwaredebug.jlink_common.jlink_script_used" value="false"/>
<stringAttribute key="com.atollic.hardwaredebug.jlink_common.jlink_trace_port_cfg_path" value="/opt/truestudio/ide/plugins/com.atollic.truestudio.tsp.stm32_1.0.0.20171023-2304/tsp/etm/stm32f4xx.init"/>
<stringAttribute key="com.atollic.hardwaredebug.jlink_common.jlink_txt_serial_number" value=""/>
<booleanAttribute key="com.atollic.hardwaredebug.jlink_common.scan_chain_auto" value="true"/>
<intAttribute key="com.atollic.hardwaredebug.jlink_common.scan_chain_irpre" value="0"/>
<intAttribute key="com.atollic.hardwaredebug.jlink_common.scan_chain_pos" value="0"/>
<stringAttribute key="com.atollic.hardwaredebug.jlink_common.selected_rtos" value="No RTOS"/>
<intAttribute key="com.atollic.hardwaredebug.launch.formatVersion" value="2"/>
<stringAttribute key="com.atollic.hardwaredebug.launch.hwinitCommands" value="# Initialize your hardware here&#10;"/>
<stringAttribute key="com.atollic.hardwaredebug.launch.ipAddress" value="localhost"/>
<stringAttribute key="com.atollic.hardwaredebug.launch.jtagDevice" value="OpenOCD"/>
<intAttribute key="com.atollic.hardwaredebug.launch.portNumber" value="3333"/>
<stringAttribute key="com.atollic.hardwaredebug.launch.remoteCommand" value="target remote"/>
<stringAttribute key="com.atollic.hardwaredebug.launch.runCommands" value="# Load the program executable&#10;load&#10;&#10;# Set a breakpoint at main().&#10;#tbreak main&#10;&#10;# Run to the breakpoint.&#10;continue"/>
<stringAttribute key="com.atollic.hardwaredebug.launch.serverParam" value=""/>
<booleanAttribute key="com.atollic.hardwaredebug.launch.startServer" value="false"/>
<booleanAttribute key="com.atollic.hardwaredebug.launch.swd_mode" value="false"/>
<stringAttribute key="com.atollic.hardwaredebug.launch.swv_port" value="2332"/>
<stringAttribute key="com.atollic.hardwaredebug.launch.swv_trace_div" value="0"/>
<stringAttribute key="com.atollic.hardwaredebug.launch.swv_trace_hclk" value="16000000"/>
<intAttribute key="com.atollic.hardwaredebug.launch.trace_system" value="0"/>
<booleanAttribute key="com.atollic.hardwaredebug.launch.useRemoteTarget" value="true"/>
<stringAttribute key="com.atollic.hardwaredebug.openocd.server_target" value="remote"/>
<stringAttribute key="org.eclipse.cdt.dsf.gdb.DEBUG_NAME" value="${TOOLCHAIN_PATH}/arm-atollic-eabi-gdb"/>
<booleanAttribute key="org.eclipse.cdt.dsf.gdb.UPDATE_THREADLIST_ON_SUSPEND" value="false"/>
<intAttribute key="org.eclipse.cdt.launch.ATTR_BUILD_BEFORE_LAUNCH_ATTR" value="2"/>
<stringAttribute key="org.eclipse.cdt.launch.COREFILE_PATH" value=""/>
<stringAttribute key="org.eclipse.cdt.launch.DEBUGGER_REGISTER_GROUPS" value=""/>
<stringAttribute key="org.eclipse.cdt.launch.PROGRAM_NAME" value="/home/pln/Atollic/TrueSTUDIO/ARM_workspace_8.1/rtfm-app/target/thumbv7em-none-eabihf/debug/examples/bare0.elf"/>
<stringAttribute key="org.eclipse.cdt.launch.PROJECT_ATTR" value="rtfm-app"/>
<booleanAttribute key="org.eclipse.cdt.launch.PROJECT_BUILD_CONFIG_AUTO_ATTR" value="false"/>
<stringAttribute key="org.eclipse.cdt.launch.PROJECT_BUILD_CONFIG_ID_ATTR" value=""/>
<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS">
<listEntry value="/rtfm-app"/>
</listAttribute>
<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_TYPES">
<listEntry value="4"/>
</listAttribute>
<listAttribute key="org.eclipse.debug.ui.favoriteGroups">
<listEntry value="org.eclipse.debug.ui.launchGroup.debug"/>
</listAttribute>
<stringAttribute key="org.eclipse.dsf.launch.MEMORY_BLOCKS" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&#10;&lt;memoryBlockExpressionList context=&quot;reserved-for-future-use&quot;/&gt;&#10;"/>
<stringAttribute key="process_factory_id" value="org.eclipse.cdt.dsf.gdb.GdbProcessFactory"/>
</launchConfiguration>
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment