blob: 38a60735593d9141497d6387c4df149077568f26 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
#include <stdint.h>
#include <string.h>
#include <elf.h>
#define ETC_LDSO_PATH "/etc/ld-musl-x86_64.path"
#define IS_COPY(x) ((x)==R_X86_64_COPY)
#define IS_PLT(x) ((x)==R_X86_64_JUMP_SLOT)
static inline void do_single_reloc(
struct dso *self, unsigned char *base_addr,
size_t *reloc_addr, int type, size_t addend,
Sym *sym, size_t sym_size,
struct symdef def, size_t sym_val)
{
switch(type) {
case R_X86_64_GLOB_DAT:
case R_X86_64_JUMP_SLOT:
case R_X86_64_64:
*reloc_addr = sym_val + addend;
break;
case R_X86_64_32:
*(uint32_t *)reloc_addr = sym_val + addend;
break;
case R_X86_64_PC32:
*reloc_addr = sym_val + addend - (size_t)reloc_addr + (size_t)base_addr;
break;
case R_X86_64_RELATIVE:
*reloc_addr = (size_t)base_addr + addend;
break;
case R_X86_64_COPY:
memcpy(reloc_addr, (void *)sym_val, sym_size);
break;
case R_X86_64_DTPMOD64:
*reloc_addr = def.dso ? def.dso->tls_id : self->tls_id;
break;
case R_X86_64_DTPOFF64:
*reloc_addr = def.sym->st_value + addend;
break;
case R_X86_64_TPOFF64:
*reloc_addr = (def.sym
? def.sym->st_value - def.dso->tls_offset
: 0 - self->tls_offset) + addend;
break;
}
}
|
