| [667] | 1 | April 2014, Joel Porquet |
|---|
| 2 | |
|---|
| 3 | This platform is known for being able to run Linux. |
|---|
| 4 | |
|---|
| 5 | ---- |
|---|
| 6 | Pre-requisites: |
|---|
| 7 | |
|---|
| 8 | * A working version of SoCLib |
|---|
| 9 | - the command `soclib-cc --getpath` should return where SoCLib is installed |
|---|
| 10 | * A working version of TSAR |
|---|
| 11 | - TSAR directory should be properly added to SoCLib's configuration: either |
|---|
| 12 | globally, or through the `soclib.conf` file present in this directory (in |
|---|
| 13 | which case, the environment variable `TSARDIR` should be defined to point |
|---|
| 14 | on TSAR directory) |
|---|
| 15 | |
|---|
| 16 | |
|---|
| 17 | ---- |
|---|
| 18 | Targets of the Makefile: |
|---|
| 19 | |
|---|
| 20 | * clean: clean the compilation files |
|---|
| 21 | * all (or none): compile the simulation system |
|---|
| 22 | * run_tsar_boot: runs the simulation system using a boot loader (in this case, |
|---|
| 23 | you want to use a blockdevice image that contains the kernel: see `DSK` |
|---|
| 24 | option below) |
|---|
| 25 | * run_dummy_boot: runs the simulation system using directly Linux instead of a |
|---|
| 26 | boot loader (i.e. Linux is already loaded in RAM before execution). |
|---|
| 27 | |
|---|
| 28 | |
|---|
| 29 | ---- |
|---|
| 30 | Options for running: |
|---|
| 31 | |
|---|
| 32 | These options apply when using either `run_tsar_boot` or `run_dummy_boot` |
|---|
| 33 | targets. Example: `make run_dummy_boot GDB=1 VMLINUX=../vmlinux DSK=dsk.img` |
|---|
| 34 | |
|---|
| 35 | * GDB=1|[FXSCTZW]: options to the GDB server (1 means FCX which is a good |
|---|
| 36 | default) |
|---|
| 37 | * NCPUS=[1-4]: number of processors |
|---|
| 38 | * DSK=[pathname]: path to a filesystem to use with the BlockDevice component |
|---|
| 39 | (also implies creating a system with such a component, other the component is |
|---|
| 40 | deactivated) |
|---|
| 41 | * TRACE=[number]: enables tracing the simulation starting from a certain cycle |
|---|
| 42 | * NCYCLES=[number]: runs the simulation for a certain number of cycles |
|---|
| 43 | |
|---|
| 44 | Only for run_dummy_boot: |
|---|
| 45 | * VMLINUX=[pathname]: path to Linux `vmlinux` image |
|---|
| 46 | |
|---|
| 47 | |
|---|
| 48 | ---- |
|---|
| 49 | Using GDB server: |
|---|
| 50 | |
|---|
| 51 | A file named `.gdbinit` contains a few macros that can be useful for debugging |
|---|
| 52 | Linux when using the GDB server. |
|---|
| 53 | |
|---|
| 54 | * connect: connect to the GDB server that runs within the simulation |
|---|
| 55 | * dmesg: print the content of the kernel message buffer |
|---|
| 56 | * thread_info: print the thread_info structure of the current task |
|---|
| 57 | * task_struct: print the task_struct structure of the current task |
|---|
| 58 | * active_mm: print the active_mm structure of the current task |
|---|
| 59 | * pgd: print the content of the page table of the current task |
|---|
| 60 | * ps: print the list of running tasks |
|---|
| 61 | |
|---|
