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Diffstat (limited to 'results/classifier/118/debug/2186')
| -rw-r--r-- | results/classifier/118/debug/2186 | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/results/classifier/118/debug/2186 b/results/classifier/118/debug/2186 deleted file mode 100644 index d0cabdf5..00000000 --- a/results/classifier/118/debug/2186 +++ /dev/null @@ -1,64 +0,0 @@ -assembly: 0.966 -debug: 0.947 -peripherals: 0.845 -graphic: 0.763 -device: 0.739 -performance: 0.675 -architecture: 0.668 -risc-v: 0.662 -PID: 0.627 -ppc: 0.621 -socket: 0.587 -permissions: 0.578 -semantic: 0.570 -vnc: 0.566 -network: 0.501 -kernel: 0.492 -x86: 0.485 -user-level: 0.483 -arm: 0.432 -mistranslation: 0.395 -i386: 0.383 -boot: 0.358 -virtual: 0.302 -register: 0.249 -files: 0.203 -VMM: 0.200 -hypervisor: 0.198 -TCG: 0.161 -KVM: 0.081 - -riscv virt pflash0 writes not supported -Description of problem: -I am using GDB to debug some Firmware related stuff. At some point in the execution my BIOS/Firmware writes into some global variable (at 0x2000525C) inside the .bss section which is linked to be inside the memory mapped pflash0. But when I step forward with GDB to the exact location where the store instruction (sw) is executed, QEMU prints the following: -``` -pflash_write: Unimplemented flash cmd sequence (offset 000000000000525c, wcycle 0x0 cmd 0x0 value 0x1) -``` -According to the top of `hw/block/pflash_cfi01.c` Flash writes are supported. I was also under the impression that the flash is memory mapped, but maybe that is not true? I am probably missing something here so it would be nice if someone could point me in the right direction. I would also gladly contribute if there is something missing in the riscv virt target. - -I made a simple program to more easily reproduce this: -``` -.section .text -.global _start -_start: - lui a5, 0x20000 - li a4, 5 - sw a4, 24(a5) - -``` -results in QEMU error msg: -``` -pflash_write: Unimplemented flash cmd sequence (offset 0000000000000018, wcycle 0x0 cmd 0x0 value 0x5) -``` -Steps to reproduce: -1. compile above assembly program like this: -``` -riscv64-unknown-elf-gcc -nostdlib -O0 bios.S -riscv64-unknown-elf-objcopy -O binary a.out -truncate -s 33554432 a.out -``` -2. start QEMU like this: -``` -qemu-system-riscv64 -M virt -bios none -drive if=pflash,format=raw,unit=0,file=a.out -nographic -d unimp -``` -3. notice the error message printed by QEMU |