nuttx

History

cuiziwei 4ec7af779d nuttx/boards:init_array.* needs to be executed in order When I try to set priorities in certain programs, such as init_priority(HIGH_PRIORITY), I've noticed that during linking, there's no guarantee that the programs will be compiled in the sequence I've specified based on priority. This has led to some runtime errors in my program. I realized that in the ld file, when initializing dynamic arrays, there's no assurance of initializing init_array.* before init_array. This has resulted in runtime errors in the program. Consequently, I've rearranged the init_array.* in the ld file of NuttX to be placed before init_array and added a SORT operation to init_array.* to ensure accurate initialization based on priorities during linking.		2023-08-29 22:54:37 +08:00
..
configs/nsh
include
scripts	nuttx/boards:init_array.* needs to be executed in order	2023-08-29 22:54:37 +08:00
src
Kconfig
README.txt

README.txt

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)