92,7 → 92,7 |
int fd; |
int rc; |
|
printf("open and read '%s'...\n", file_name); |
// printf("open and read '%s'...\n", file_name); |
|
fd = open(file_name, O_RDONLY); |
if (fd < 0) { |
104,7 → 104,6 |
elf.info = info; |
|
rc = elf_load(&elf, so_bias); |
printf("elf_load() -> %d\n", rc); |
|
close(fd); |
|
120,8 → 119,6 |
*/ |
void elf_run(elf_info_t *info) |
{ |
printf("entry point: 0x%llx\n", info->entry); |
//(*info->entry)(); |
program_run(info->entry); |
|
/* not reached */ |
179,7 → 176,7 |
|
elf->header = header; |
|
printf("ELF-load:"); |
// printf("ELF-load:"); |
/* Identify ELF */ |
if (header->e_ident[EI_MAG0] != ELFMAG0 || |
header->e_ident[EI_MAG1] != ELFMAG1 || |
218,17 → 215,17 |
} |
|
/* Shared objects can be loaded with a bias */ |
printf("Object type: %d\n", header->e_type); |
// printf("Object type: %d\n", header->e_type); |
if (header->e_type == ET_DYN) |
elf->bias = so_bias; |
else |
elf->bias = 0; |
|
printf("Bias set to 0x%x\n", elf->bias); |
// printf("Bias set to 0x%x\n", elf->bias); |
elf->info->interp = NULL; |
elf->info->dynamic = NULL; |
|
printf("parse segments\n"); |
// printf("parse segments\n"); |
|
/* Walk through all segment headers and process them. */ |
for (i = 0; i < header->e_phnum; i++) { |
246,7 → 243,7 |
return rc; |
} |
|
printf("parse sections\n"); |
// printf("parse sections\n"); |
|
/* Inspect all section headers and proccess them. */ |
for (i = 0; i < header->e_shnum; i++) { |
267,7 → 264,7 |
elf->info->entry = |
(entry_point_t)((uint8_t *)header->e_entry + elf->bias); |
|
printf("done\n"); |
// printf("done\n"); |
|
return EE_OK; |
} |
333,8 → 330,8 |
size_t mem_sz; |
int rc; |
|
printf("load segment at addr 0x%x, size 0x%x\n", entry->p_vaddr, |
entry->p_memsz); |
// printf("load segment at addr 0x%x, size 0x%x\n", entry->p_vaddr, |
// entry->p_memsz); |
|
bias = elf->bias; |
|
362,8 → 359,8 |
base = ALIGN_DOWN(entry->p_vaddr, PAGE_SIZE); |
mem_sz = entry->p_memsz + (entry->p_vaddr - base); |
|
printf("map to p_vaddr=0x%x-0x%x...\n", entry->p_vaddr + bias, |
entry->p_vaddr + bias + ALIGN_UP(entry->p_memsz, PAGE_SIZE)); |
// printf("map to p_vaddr=0x%x-0x%x...\n", entry->p_vaddr + bias, |
// entry->p_vaddr + bias + ALIGN_UP(entry->p_memsz, PAGE_SIZE)); |
|
/* |
* For the course of loading, the area needs to be readable |
376,17 → 373,17 |
return EE_MEMORY; |
} |
|
printf("as_area_create(0x%lx, 0x%x, %d) -> 0x%lx\n", |
entry->p_vaddr+bias, entry->p_memsz, flags, (uintptr_t)a); |
// printf("as_area_create(0x%lx, 0x%x, %d) -> 0x%lx\n", |
// entry->p_vaddr+bias, entry->p_memsz, flags, (uintptr_t)a); |
|
/* |
* Load segment data |
*/ |
printf("seek to %d\n", entry->p_offset); |
// printf("seek to %d\n", entry->p_offset); |
rc = lseek(elf->fd, entry->p_offset, SEEK_SET); |
if (rc < 0) { printf("seek error\n"); return EE_INVALID; } |
|
printf("read 0x%x bytes to address 0x%x\n", entry->p_filesz, entry->p_vaddr+bias); |
// printf("read 0x%x bytes to address 0x%x\n", entry->p_filesz, entry->p_vaddr+bias); |
/* rc = read(fd, (void *)(entry->p_vaddr + bias), entry->p_filesz); |
if (rc < 0) { printf("read error\n"); return EE_INVALID; }*/ |
|
402,9 → 399,9 |
now = 16384; |
if (now > left) now = left; |
|
printf("read %d...", now); |
// printf("read %d...", now); |
rc = read(elf->fd, dp, now); |
printf("->%d\n", rc); |
// printf("->%d\n", rc); |
|
if (rc < 0) { printf("read error\n"); return EE_INVALID; } |
|
412,7 → 409,7 |
dp += now; |
} |
|
printf("set area flags to %d\n", flags); |
// printf("set area flags to %d\n", flags); |
rc = as_area_change_flags((uint8_t *)entry->p_vaddr + bias, flags); |
if (rc != 0) { |
printf("failed to set memory area flags\n"); |