Method get_memory_ranges

src/main.rs:227–265

Get the physical memory ranges (System RAM) from /proc/iomem

()

    // Get the physical memory ranges (System RAM) from /proc/iomem
    fn get_memory_ranges() -> Result<Vec<MemoryRange>> {
        let mut iomem_ranges = Vec::new();

        let file = fs::File::open(format!("{}iomem", PROC_DIR))?;
        let reader = BufReader::new(file);
    
        for line in reader.lines() {
            let line = line?;
            if line.contains("System RAM") {
                let part1: Vec<&str> = line.split(" ").collect();
                if part1.len() > 0 {
                    let part2: Vec<&str>  = part1[0].split("-").collect();
                    if part2.len() > 1 {
                        let start_phys_addr = u64::from_str_radix(part2[0], 16)?;
                        let end_phys_addr = u64::from_str_radix(part2[1], 16)? + 1;
                        let memsz = end_phys_addr - start_phys_addr;

                        iomem_ranges.push(MemoryRange {
                            start_phys_addr,
                            end_phys_addr,
                            memsz,
                            is_virtual: false,
                            p_flags: 0,
                            virt_addr: 0,
                            kcore_file_off: 0,
                            out_file_off: 0
                            // program_header: None
                        })
                    }
                }
            }
        }

        if iomem_ranges.len() == 0 {
            return Err(Error::IoError("/proc/iomem has no entries.".to_string()));
        }

        Ok(iomem_ranges)
    }

    // Retrieve the values of vmcoreinfo_data & vmcoreinfo_size inside /proc/kallsyms
    fn get_vmcoreinfo_syms(&mut self) -> Result<()> {