Function file_mmap

components/lwp/lwp_elf.c:171–185

* @brief Map a file into the process's address space. * * This function maps a file into the process's virtual memory using the specified * address, size, protection flags, and offset. It ensures the mapping is properly * aligned and verifies the mapping operation. * * @param lwp Pointer to the Light Weight Process (LWP) structure. * @param fd File descriptor of the file to map. * @param l

 * @return Virtual address where the file is mapped on success, NULL on failure.
 */
static void *file_mmap(struct rt_lwp *lwp, int fd, rt_ubase_t load_addr,
        rt_ubase_t map_size, size_t prot, size_t flags, rt_ubase_t offset)
{
    uint8_t *map_va;

    map_va = (uint8_t *)lwp_mmap2(lwp, (void *)load_addr, map_size, prot, flags, fd, offset >> ARCH_PAGE_SHIFT);
    if (!map_va || (map_va != (uint8_t *)load_addr))
    {
        LOG_E("%s : lwp map user failed!", __func__);
        return RT_NULL;
    }
    LOG_D("  %s : map va = %p load_addr : %p size : 0x%x", __func__, map_va, load_addr, map_size);

    return map_va;
}

static int elf_file_open(const char *filename)
{