63 lines
1.6 KiB
Plaintext
63 lines
1.6 KiB
Plaintext
|
README.txt
|
||
|
|
==========
|
||
|
|
|
||
|
|
This board configuration will use QEMU to emulate generic ARM v7-A series
|
||
|
|
hardware platform and provides support for these devices:
|
||
|
|
|
||
|
|
- GICv2 interrupt controllers
|
||
|
|
- ARM Generic Timer
|
||
|
|
- PL011 UART controller
|
||
|
|
|
||
|
|
Contents
|
||
|
|
========
|
||
|
|
- Getting Started
|
||
|
|
- Status
|
||
|
|
- Platform Features
|
||
|
|
- Debugging with QEMU
|
||
|
|
- FPU Support and Performance
|
||
|
|
- SMP Support
|
||
|
|
- References
|
||
|
|
|
||
|
|
Getting Started
|
||
|
|
===============
|
||
|
|
|
||
|
|
1. Configuring and running
|
||
|
|
1.1 Single Core
|
||
|
|
Configuring NuttX and compile:
|
||
|
|
$ ./tools/configure.sh -l qemu-armv7a:nsh
|
||
|
|
$ make
|
||
|
|
Running with qemu
|
||
|
|
$ qemu-system-arm -cpu cortex-a7 -nographic \
|
||
|
|
-machine virt,virtualization=off,gic-version=2 \
|
||
|
|
-net none -chardev stdio,id=con,mux=on -serial chardev:con \
|
||
|
|
-mon chardev=con,mode=readline -kernel ./nuttx
|
||
|
|
|
||
|
|
Debugging with QEMU
|
||
|
|
===================
|
||
|
|
|
||
|
|
The nuttx ELF image can be debugged with QEMU.
|
||
|
|
|
||
|
|
1. To debug the nuttx (ELF) with symbols, make sure the following change have
|
||
|
|
applied to defconfig.
|
||
|
|
|
||
|
|
+CONFIG_DEBUG_SYMBOLS=y
|
||
|
|
|
||
|
|
2. Run QEMU(at shell terminal 1)
|
||
|
|
|
||
|
|
Single Core
|
||
|
|
$ qemu-system-arm -cpu cortex-a7 -nographic \
|
||
|
|
-machine virt,virtualization=off,gic-version=2 \
|
||
|
|
-net none -chardev stdio,id=con,mux=on -serial chardev:con \
|
||
|
|
-mon chardev=con,mode=readline -kernel ./nuttx -S -s
|
||
|
|
|
||
|
|
3. Run gdb with TUI, connect to QEMU, load nuttx and continue (at shell terminal 2)
|
||
|
|
|
||
|
|
$ arm-none-eabi-gdb -tui --eval-command='target remote localhost:1234' nuttx
|
||
|
|
(gdb) c
|
||
|
|
Continuing.
|
||
|
|
^C
|
||
|
|
Program received signal SIGINT, Interrupt.
|
||
|
|
nx_start () at armv7-a/arm_head.S:209
|
||
|
|
(gdb)
|
||
|
|
|