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elf: Do not assume relocatable unless DT_RELA present. Fixes #170

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mintsuki 2022-05-07 13:12:28 +02:00
parent 650c1443e0
commit c22492976a
1 changed files with 14 additions and 2 deletions
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16
common/lib/elf.c
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@ -127,8 +127,20 @@ static bool elf64_is_relocatable(uint8_t *elf, struct elf64_hdr *hdr) {
memcpy(&phdr, elf + (hdr->phoff + i * hdr->phdr_size),
sizeof(struct elf64_phdr));
if (phdr.p_type == PT_DYNAMIC)
return true;
if (phdr.p_type != PT_DYNAMIC) {
continue;
}
for (uint16_t j = 0; j < phdr.p_filesz / sizeof(struct elf64_dyn); j++) {
struct elf64_dyn dyn;
memcpy(&dyn, elf + (phdr.p_offset + j * sizeof(struct elf64_dyn)),
sizeof(struct elf64_dyn));
switch (dyn.d_tag) {
case DT_RELA:
return true;
}
}
}
return false;