Using --debug-flag=Exec I have also produced an execution trace of the
binary: https://gist.github.com/Icohedron/1920d7b0130d8348d509038a10122c23
On Sun, Aug 15, 2021 at 6:46 PM Deric Cheung <dache...@ualberta.ca> wrote:
> I'm trying to write and run some file IO code for ARM, but I encounter a
> fatal error when trying to run this simple C program:
>
> test.c:
> ```c
> #include <stdio.h>
>
> int main(int argc, char **argv)
> {
> FILE *input = fopen(argv[1], "rb");
> if (input == NULL)
> {
> printf("Error reading file: %s\n", argv[1]);
> return 1;
> }
> fseek(input, 0L, SEEK_END);
> long int size = ftell(input);
> fseek(input, 0L, SEEK_SET);
> return 0;
> }
> ```
>
> Binary (test.arm) compiled using command: arm-linux-gnueabihf-gcc -static
> -o test.arm -std=gnu99 test.c
>
> Run output:
> ```
> $ build/ARM/gem5.opt configs/example/se.py -c test.arm -o
> hashmark/500.txtbuild/ARM/base/statistics.hh:277: 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.
> gem5 Simulator System. http://gem5.org
> gem5 is copyrighted software; use the --copyright option for details.
>
> gem5 version 21.1.0.0
> gem5 compiled Aug 11 2021 16:16:59
> gem5 started Aug 15 2021 18:33:07
> gem5 executing on Shiva, pid 6082
> command line: build/ARM/gem5.opt configs/example/se.py -c test.arm -o
> hashmark/500.txt
>
> warn: membus.slave is deprecated. `slave` is now called `cpu_side_ports`
> warn: membus.slave is deprecated. `slave` is now called `cpu_side_ports`
> warn: membus.slave is deprecated. `slave` is now called `cpu_side_ports`
> warn: membus.slave is deprecated. `slave` is now called `cpu_side_ports`
> warn: membus.slave is deprecated. `slave` is now called `cpu_side_ports`
> Global frequency set at 1000000000000 ticks per second
> warn: No dot file generated. Please install pydot to generate the dot file
> and pdf.
> build/ARM/mem/mem_interface.cc:791: warn: DRAM device capacity (8192
> Mbytes) does not match the address range assigned (512 Mbytes)
> 0: system.remote_gdb: listening for remote gdb on port 7000
> **** REAL SIMULATION ****
> build/ARM/sim/simulate.cc:107: info: Entering event queue @ 0. Starting
> simulation...
> build/ARM/sim/mem_state.cc:443: info: Increasing stack size by one page.
> build/ARM/sim/syscall_emul.cc:73: warn: ignoring syscall mprotect(...)
> build/ARM/mem/port_proxy.hh:195: fatal: writeBlob(0x1cde, ...) failed
> Memory Usage: 650296 KBytes
> ```
>
> I can confirm that the `fopen()` call completes successfully. The `fseek`
> and `ftell` functions incur the fatal failed writeBlob error.
>
> A backtrace of the error is here:
> https://gist.github.com/Icohedron/8fb339fccf323c9813d79dd466ae4f66
>
> Operating System: Debian 11
> gcc-arm-linux-gnueabihf version: 4:10.2.1-1
>
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