Issue Description:
When launching a manually crafted hello application (with x86_64/amd64efi ) via GRUB EFI boot image under QEMU, no console output is observed.
Environment Details:
follow 2.4 & 2.5
- Install the Tool Suite
../source-builder/sb-set-builder --prefix=$PREFIX 6/rtems-x86_64.bset
- Build a Board Support Package
../source-builder/sb-set-builder
--log=bsp_build.log \
--prefix=$PREFIX \
--with-rtems-bsp=x86_64/amd64efi \
6/rtems-kernel
Then the tool kit and BSP structure file directory were generated on $PREFIX
Build Hello Application
follow 2.7
- Setup Waf build system and git
curl https://waf.io/waf-2.0.19 > waf
chmod +x waf
git init
git submodule add https://gitlab.rtems.org/rtems/tools/rtems_waf.git rtems_waf
- Create three files
init.c, hello.c, wscript
Exactly the same as in the manual but rtems_version = "6".
- Build
./waf configure --rtems=$PREFIX --rtems-bsp=x86_64/amd64efi
./waf
Successfully generated the exe file.
Create GRUB boot system
follow 8.13
- Build OVMF
Successfully build.
- Create ESP Partition
.
├── EFI
│ └── BOOT
│ ├── BOOTX64.EFI
│ └── grub.cfg
└── rtems
Create an image and start under QEMU
makefs -t msdos -s 50m RTEMS-GRUB.img RTEMS-GRUB
The image created at this time seems to still be FAT16, but I also tried converting it to FAT32, and it had no change on the result.
qemu-system-x86_64 -no-reboot -nographic -m 256M -bios OVMF.fd -drive file=RTEMS-GRUB.img,format=raw,media=disk -serial mon:stdio
No output after startup, no response, so I tried to view it through QEMU’s GDB mode.
Debug
qemu-system-x86_64 -no-reboot -nographic -m 256M -bios OVMF.fd -drive file=RTEMS-GRUB.img,format=raw,media=disk -serial mon:stdio -s -S
gdb-multiarch .../RTEMS-GRUB/rtems
I found that all the assembly instructions inside are add:
I don’t know which step went wrong, thank you for your help.