| 47,7 → 47,7 |
|---|
| |
| static void kputint(unsigned i) |
| { |
| asm volatile ( |
| /* asm volatile ( |
| "mr %%r3, %0\n" |
| "li %%r9, 31\n" |
| "sc\n" |
| 54,7 → 54,7 |
|---|
| : |
| : "r" (i) |
| : "%r3","%r9" |
| ) ; |
| ) ;*/ |
| } |
| |
| #define __L(ptr) ((uint32_t)(ptr) & 0x0000ffff) |
| 142,7 → 142,7 |
|---|
| rel_entries = 0; |
| jmp_rel_table = 0; |
| jmp_rel_entries = 0; |
| |
| /* |
| i = 0; |
| while (dynamic[i].d_tag != 0) { |
| // kputint((uintptr_t)&dynamic[i]); |
| 154,25 → 154,25 |
|---|
| |
| // kputint(0x10); |
| register unsigned tag = dynamic[i].d_tag; |
| |
| */ |
| /* |
| * Note that switches only work because we are using |
| * -fno-jump-tables. |
| */ |
| switch (tag) { |
| /* switch (tag) { |
| case DT_PLTRELSZ: jmp_rel_entries = dval/sizeof(elf_rela_t); break; |
| case DT_JMPREL: jmp_rel_table = dptr; break; |
| case DT_PLTGOT: |
| case DT_PLTGOT:*/ |
| /* PLT address */ |
| plt = dptr; break; |
| /* plt = dptr; break; |
| case DT_SYMTAB: sym_table = dptr; break; |
| case DT_RELA: rel_table = dptr; break; |
| case DT_RELASZ: rel_entries = dval / sizeof(elf_rela_t); break; |
| default: break; |
| } |
| |
| */ |
| // kputint(0x20); |
| |
| /* |
| ++i; |
| } |
| |
| 181,16 → 181,16 |
|---|
| kputint((unsigned)rel_table); |
| kputint((unsigned)rel_entries); |
| |
| /* Now relocate all our dynsyms */ |
| */ /* Now relocate all our dynsyms */ |
| kputint(-1); |
| |
| // PLT entries start here. However, each occupies 2 words |
| _plt_ent = plt + 18; |
| // _plt_ent = plt + 18; |
| |
| // By definition of the ppc ABI, there's 1:1 correspondence |
| // between JMPREL entries and PLT entries |
| unsigned plt_n = jmp_rel_entries; |
| |
| // unsigned plt_n = jmp_rel_entries; |
| /* |
| uint32_t *_plt_table; |
| uint32_t *_plt_call; |
| uint32_t *_plt_resolve; |
| 237,7 → 237,7 |
|---|
| // kputint(plt[18]); |
| // while(1); |
| // while(1); |
| //*r_ptr = sym_addr; |
| // *r_ptr = sym_addr; |
| |
| break; |
| |
| 264,9 → 264,9 |
|---|
| kputint(sym_addr); |
| res = (sym_addr - (uint32_t)r_ptr + a) >> 2; |
| kputint(res); |
| if (res & 0xff000000) { |
| if (res & 0xff000000) {*/ |
| /* out of range?? */ |
| kputint(0xeeeeeeee); |
| /* kputint(0xeeeeeeee); |
| //while(1); |
| } |
| *r_ptr = (*r_ptr & ~0x00ffffff) | (res & 0x00ffffff); |
| 274,15 → 274,15 |
|---|
| break; |
| } |
| } |
| |
| */ |
| kputint(-3); |
| if (plt != 0) { |
| // if (plt != 0) { |
| |
| /* .PLTcall: */ |
| plt[6] = _ldis(11, __HA(_plt_table)); // ldis r11, .PLTtable@ha |
| plt[7] = _lwz(11, __L(_plt_table), 11); // lwz r11, .PLTtable@l(r11) |
| plt[8] = _mtctr(11); // mtctr r11 |
| plt[9] = _bctr(); |
| // plt[6] = _ldis(11, __HA(_plt_table)); // ldis r11, .PLTtable@ha |
| // plt[7] = _lwz(11, __L(_plt_table), 11); // lwz r11, .PLTtable@l(r11) |
| // plt[8] = _mtctr(11); // mtctr r11 |
| // plt[9] = _bctr(); |
| |
| /* .PLTi, i = 0..N-1 */ |
| /* kputint(-4); |
| 291,14 → 291,14 |
|---|
| plt[18+i] = _b(_plt_call, &plt[18+i]); // b .PLTcall |
| } |
| */ |
| kputint(-5); |
| kputint(_plt_table[0]); |
| } |
| // kputint(-5); |
| // kputint(_plt_table[0]); |
| // } |
| |
| kputint(-6); |
| // kputint(-6); |
| /* This will come in handy */ |
| runtime_env.rtld_dynamic = dynamic; |
| runtime_env.rtld.bias = bias; |
| // runtime_env.rtld_dynamic = dynamic; |
| // runtime_env.rtld.bias = bias; |
| |
| // volatile int ff=1; |
| // while(ff); |