| 41,61 → 41,8 |
|---|
| #include <as.h> |
| |
| #include "elf.h" |
| #include "pcb.h" |
| #include "elf_load.h" |
| |
| unsigned int elf_load(int fd, elf_header_t *header); |
| |
| typedef void (*entry_point_t)(void); |
| |
| static int elf_load_file(char *file_name, elf_header_t *header) |
| { |
| int fd; |
| int rc; |
| |
| printf("open and read '%s'...\n", file_name); |
| |
| fd = open(file_name, 0); |
| if (fd < 0) { |
| printf("failed opening file\n"); |
| return -1; |
| } |
| |
| rc = elf_load(fd, header); |
| printf("elf_load() -> %d\n", rc); |
| |
| close(fd); |
| |
| return rc; |
| } |
| |
| static void elf_run(elf_header_t *header) |
| { |
| entry_point_t entry_point; |
| |
| entry_point = (entry_point_t)header->e_entry; |
| (*entry_point)(); |
| |
| /* not reached */ |
| } |
| |
| static int elf_create_pcb(elf_header_t *header) |
| { |
| pcb_t *pcb; |
| void *a; |
| |
| pcb = (pcb_t *)PCB_ADDRESS; |
| |
| a = as_area_create(pcb, sizeof(pcb_t), AS_AREA_READ | AS_AREA_WRITE); |
| if (a == (void *)(-1)) { |
| printf("elf_create_pcb: memory mapping failed\n"); |
| return EE_MEMORY; |
| } |
| |
| pcb->entry = (entry_point_t)header->e_entry; |
| |
| return 0; |
| } |
| |
| int main(int argc, char *argv[]) |
| { |
| elf_header_t prog_header; |