| 36,6 → 36,7 |
|---|
| |
| #include <elf_dyn.h> |
| #include <rtld.h> |
| #include <pcb.h> |
| |
| void __main(void); |
| void __io_init(void); |
| 73,22 → 74,29 |
|---|
| elf_rel_t *rel_table; |
| elf_rel_t *jmp_rel_table; |
| size_t jmp_rel_entries; |
| pcb_t *pcb; |
| |
| pcb = (pcb_t *)PCB_ADDRESS; |
| |
| /* The program loader (iloader) kindly provided us with these */ |
| dynamic = pcb->rtld_dynamic; |
| bias = pcb->rtld_bias; |
| /* |
| asm volatile ( |
| /* Calculate the bias into %0 */ |
| /* Generates "fake" R_386_RELATIVE run-time relocation */ |
| // Calculate the bias into %0 |
| // Generates "fake" R_386_RELATIVE run-time relocation |
| " call .L0;" |
| ".L0: pop %0;" |
| " subl $.L0, %0;" |
| |
| /* Calculate run-time address of _DYNAMIC into %1 */ |
| /* Generates "fake" R_386_RELATIVE run-time relocation */ |
| " movl $_DYNAMIC, %1;" /* Again, at link time 0-based VMA gets in */ |
| " addl %0, %1;" /* Add bias to compute run-time address */ |
| // Calculate run-time address of _DYNAMIC into %1 |
| // Generates "fake" R_386_RELATIVE run-time relocation |
| " movl $_DYNAMIC, %1;" // Again, at link time 0-based VMA gets in |
| " addl %0, %1;" // Add bias to compute run-time address |
| |
| : "=r" (bias), "=r" (dynamic) |
| ); |
| |
| */ |
| kputint(bias); |
| kputint((unsigned)dynamic); |
| |