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Lines 579-584
static char *scanelf_file_textrels(elfobj *elf, char *found_textrels, char *foun
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| 579 |
Elf ## B ## _Rela *rela; \ |
579 |
Elf ## B ## _Rela *rela; \ |
| 580 |
Elf ## B ## _Dyn *dyn, *drel, *drelsz, *drelent, *dpltrel; \ |
580 |
Elf ## B ## _Dyn *dyn, *drel, *drelsz, *drelent, *dpltrel; \ |
| 581 |
uint32_t pltrel; \ |
581 |
uint32_t pltrel; \ |
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582 |
Elf ## B ## _Addr load_address = 0; \ |
| 583 |
Elf ## B ## _Addr file_offset; \ |
| 582 |
\ |
584 |
\ |
| 583 |
/* Walk all the dynamic tags to find relocation info */ \ |
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/* Walk all the dynamic tags to find relocation info */ \ |
| 584 |
drel = drelsz = drelent = dpltrel = NULL; \ |
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drel = drelsz = drelent = dpltrel = NULL; \ |
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Lines 605-631
static char *scanelf_file_textrels(elfobj *elf, char *found_textrels, char *foun
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| 605 |
warnf("ELF is missing relocation information"); \ |
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warnf("ELF is missing relocation information"); \ |
| 606 |
break; \ |
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break; \ |
| 607 |
} \ |
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} \ |
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610 |
phdr = PHDR ## B(elf->phdr); \ |
| 611 |
/* Lookup load base: byte 0 is mapped at load_address */ \ |
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for (i = 0; i < EGET(ehdr->e_phnum); ++i) { \ |
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/* Only care about loadable segments. */ \ |
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if (EGET(phdr[i].p_type) != PT_LOAD) \ |
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continue; \ |
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/* We search for the first program header to map into memory */ \ |
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if (EGET(phdr[i].p_offset) != 0) \ |
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continue; \ |
| 619 |
load_address = EGET(phdr[i].p_vaddr); \ |
| 620 |
} \ |
| 608 |
switch (EGET(dpltrel->d_un.d_val)) { \ |
621 |
switch (EGET(dpltrel->d_un.d_val)) { \ |
| 609 |
case DT_REL: \ |
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case DT_REL: \ |
| 610 |
if (!VALID_RANGE(elf, EGET(drel->d_un.d_val), sizeof (drel->d_un.d_val))) { \ |
623 |
file_offset = EGET(drel->d_un.d_val) - load_address; \ |
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624 |
if (!VALID_RANGE(elf, file_offset, sizeof (drel->d_un.d_val))) { \ |
| 611 |
rel = NULL; \ |
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rel = NULL; \ |
| 612 |
rela = NULL; \ |
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rela = NULL; \ |
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warn("%s: DT_REL is out of file range", elf->filename); \ |
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warn("%s: DT_REL is out of file range", elf->filename); \ |
| 614 |
break; \ |
628 |
break; \ |
| 615 |
} \ |
629 |
} \ |
| 616 |
rel = REL##B(elf->vdata + EGET(drel->d_un.d_val)); \ |
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rel = REL##B(elf->vdata + file_offset); \ |
| 617 |
rela = NULL; \ |
631 |
rela = NULL; \ |
| 618 |
pltrel = DT_REL; \ |
632 |
pltrel = DT_REL; \ |
| 619 |
break; \ |
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break; \ |
| 620 |
case DT_RELA: \ |
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case DT_RELA: \ |
| 621 |
if (!VALID_RANGE(elf, EGET(drel->d_un.d_val), sizeof (drel->d_un.d_val))) { \ |
635 |
file_offset = EGET(drel->d_un.d_val) - load_address; \ |
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636 |
if (!VALID_RANGE(elf, file_offset, sizeof (drel->d_un.d_val))) { \ |
| 622 |
rel = NULL; \ |
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rel = NULL; \ |
| 623 |
rela = NULL; \ |
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rela = NULL; \ |
| 624 |
warn("%s: DT_RELA is out of file range", elf->filename); \ |
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warn("%s: DT_RELA is out of file range", elf->filename); \ |
| 625 |
break; \ |
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break; \ |
| 626 |
} \ |
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} \ |
| 627 |
rel = NULL; \ |
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rel = NULL; \ |
| 628 |
rela = RELA##B(elf->vdata + EGET(drel->d_un.d_val)); \ |
643 |
rela = RELA##B(elf->vdata + file_offset); \ |
| 629 |
pltrel = DT_RELA; \ |
644 |
pltrel = DT_RELA; \ |
| 630 |
break; \ |
645 |
break; \ |
| 631 |
default: \ |
646 |
default: \ |
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Lines 639-645
static char *scanelf_file_textrels(elfobj *elf, char *found_textrels, char *foun
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| 639 |
rmax = EGET(drelsz->d_un.d_val) / EGET(drelent->d_un.d_val); \ |
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rmax = EGET(drelsz->d_un.d_val) / EGET(drelent->d_un.d_val); \ |
| 640 |
\ |
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\ |
| 641 |
/* search the program segments for relocations */ \ |
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/* search the program segments for relocations */ \ |
| 642 |
phdr = PHDR ## B(elf->phdr); \ |
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| 643 |
for (i = 0; i < EGET(ehdr->e_phnum); ++i) { \ |
657 |
for (i = 0; i < EGET(ehdr->e_phnum); ++i) { \ |
| 644 |
Elf ## B ## _Addr vaddr = EGET(phdr[i].p_vaddr); \ |
658 |
Elf ## B ## _Addr vaddr = EGET(phdr[i].p_vaddr); \ |
| 645 |
uint ## B ## _t memsz = EGET(phdr[i].p_memsz); \ |
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uint ## B ## _t memsz = EGET(phdr[i].p_memsz); \ |
| 646 |
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