Empathy List Archives

gem5-users@gem5.org

The gem5 Users mailing list

Full System emulation using bare metal option

elio.vinciguerra@phd.unict.it

Mon, Jan 8, 2024 12:59 PM

Hi everyone, I would need to run a simulation of gem5 in Full System emulation with RISCV architecture with a simple C program. I therefore tried to use the --bare-metal option.

So, I tried to run the following command:

./gem5/build/RISCV/gem5.opt ./gem5/configs/example/riscv/fs_linux.py --kernel=test —bare-metal

where "test" is a compiled program written in C:

#include <stdio.h>

int main(void){

    unsigned int r = 1337;

    printf("Hello World! %d\\n", r);

    while (1) { }

}

and compiled with the following command: riscv64-unknown-linux-gnu-gcc --static test.c -o test

but gem5 returns me the following error:

gem5 Simulator System. https://www.gem5.org

gem5 is copyrighted software; use the --copyright option for details.

gem5 version 23.0.1.0

gem5 compiled Dec 15 2023 12:35:45

gem5 started Jan 8 2024 12:55:50

gem5 executing on 46f410d0d38b, pid 1704898

command line: ./gem5/build/RISCV/gem5.opt ./gem5/configs/example/riscv/fs_linux.py --kernel=test —bare-metal

warn: The `get_runtime_isa` function is deprecated. Please migrate away from using this function.

Global frequency set at 1000000000000 ticks per second

warn: No dot file generated. Please install pydot to generate the dot file and pdf.

src/mem/dram_interface.cc:690: warn: DRAM device capacity (8192 Mbytes) does not match the address range assigned (512 Mbytes)

src/base/statistics.hh:279: warn: One of the stats is a legacy stat. Legacy stat is a stat that does not belong to any statistics::Group. Legacy stat is deprecated.

   0: system.platform.rtc: Real-time clock set to Sun Jan  1 00:00:00 2012

system.platform.terminal: Listening for connections on port 3456

system.remote_gdb: Listening for connections on port 7000

**** REAL SIMULATION ****

src/sim/simulate.cc:194: info: Entering event queue @ 0. Starting simulation...

src/cpu/simple/atomic.cc:753: panic: panic condition pkt.isError() occurred: Instruction fetch ([0x10420:0x10424]) failed: BadAddressError [10420:10423] IF

Memory Usage: 626284 KBytes

Program aborted at tick 0

--- BEGIN LIBC BACKTRACE ---

gem5.opt(+0x63c370)[0x56510fbd8370]

gem5.opt(+0x66b7ac)[0x56510fc077ac]

/lib/x86_64-linux-gnu/libc.so.6(+0x42520)[0x7f32bd310520]

/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x12c)[0x7f32bd3649fc]

/lib/x86_64-linux-gnu/libc.so.6(raise+0x16)[0x7f32bd310476]

/lib/x86_64-linux-gnu/libc.so.6(abort+0xd3)[0x7f32bd2f67f3]

gem5.opt(+0x654825)[0x56510fbf0825]

gem5.opt(+0xb92873)[0x56511012e873]

gem5.opt(+0xb91920)[0x56511012d920]

gem5.opt(+0x657612)[0x56510fbf3612]

gem5.opt(+0x6953b8)[0x56510fc313b8]

gem5.opt(+0x6959ab)[0x56510fc319ab]

gem5.opt(+0x132e8f0)[0x5651108ca8f0]

gem5.opt(+0x5d0b74)[0x56510fb6cb74]

/lib/x86_64-linux-gnu/libpython3.10.so.1.0(+0x128023)[0x7f32bde0f023]

/lib/x86_64-linux-gnu/libpython3.10.so.1.0(_PyObject_Call+0x5c)[0x7f32bddc8fec]

/lib/x86_64-linux-gnu/libpython3.10.so.1.0(_PyEval_EvalFrameDefault+0x4b16)[0x7f32bdd5d776]