Still don't know how to build/run a simple Hello World kernel on qemu-system-aarch64?
Guys, this is a very basic thing, please provide concrete steps. Thanks. 2014-09-04 16:29 GMT+03:00 Peter Maydell <peter.mayd...@linaro.org>: > On 4 September 2014 11:40, Semion Prihodko <semion.ab...@gmail.com> wrote: > > Hi guys, > > > > Need your help. I trying to find a way to compile/link a minimal kernel > > which outputs "Hello World" in qemu-system-aarch64. No tutorial found. > There > > is no problem running the same example in Foundation emulator, but I need > > QEMU. > > > > Trying to reuse axf-file in Foundation example: > > > > aarch64-linux-gnu-objcopy -O binary hello.axf kernel.bin > > qemu-system-aarch64 -machine virt -cpu cortex-a57 -nographic -smp 1 -m 3G > > -kernel kernel.bin > > > > I got: > > > > qemu: fatal: Trying to execute code outside RAM or ROM at > 0x0000000000000000 > > If you use "-kernel" and it's not an ELF file, then we assume it's > a Linux kernel image with the arm64 Linux image header format. > Since in your case this probably isn't true, we're crashing very > early on. > > You probably want: > (1) to pass the ELF file directly to QEMU rather than converting > it to a binary > (2) to make sure your image is linked correctly to work with > the "virt" board's memory layout, which is different from that > of the Foundation models > > thanks > -- PMM >
