Exemplos de vm_replace_region em C++ (Cpp)

Exemplo n.º 1

static int clone_stack(struct proc_info * new_proc, struct proc_info * old_proc)
{
    struct buf * const old_region = (*old_proc->mm.regions)[MM_STACK_REGION];
    struct buf * new_region;
    int err;

    if (unlikely(!old_region)) {
        KERROR_DBG("No stack created\n");
        return 0;
    }

    err = clone2vr(old_region, &new_region);
    if (err)
        return err;

    err = vm_replace_region(new_proc, new_region, MM_STACK_REGION,
                            VM_INSOP_MAP_REG);
    return err;
}

Exemplo n.º 2

Arquivo: exec_elf32.c Projeto: htchiang/zeke

static int load_sections(struct proc_info * proc, file_t * file,
                         struct elf32_header * elfhdr, struct elf32_phdr * phdr,
                         uintptr_t rbase, uintptr_t * vaddr_base)
{
    int e_type = elfhdr->e_type;
    size_t phnum = elfhdr->e_phnum;

    for (size_t i = 0; i < phnum; i++) {
        struct buf * sect;
        int err;

        if (!(phdr[i].p_type == PT_LOAD && phdr[i].p_memsz != 0))
            continue;

        if ((err = load_section(&sect, file, rbase, &phdr[i])))
            return err;

        if (e_type == ET_EXEC && i < 2) {
            const int reg_nr = (i == 0) ? MM_CODE_REGION : MM_HEAP_REGION;

            if (i == 0)
                *vaddr_base = phdr[i].p_vaddr + rbase;
            err = vm_replace_region(proc, sect, reg_nr, VM_INSOP_MAP_REG);
            if (err) {
                KERROR(KERROR_ERR, "Failed to replace a region\n");
                return err;
            }
        } else {
            err = vm_insert_region(proc, sect, VM_INSOP_MAP_REG);
            if (err < 0) {
                KERROR(KERROR_ERR, "Failed to insert a region\n");
                return -1;
            }
        }
    }

    return 0;
}