reloc.h 1.1 KB

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  1. #include <string.h>
  2. #include <elf.h>
  3. #define ETC_LDSO_PATH "/etc/ld-musl-microblaze.path"
  4. #define IS_COPY(x) ((x)==R_MICROBLAZE_COPY)
  5. #define IS_PLT(x) ((x)==R_MICROBLAZE_JUMP_SLOT)
  6. static inline void do_single_reloc(size_t *reloc_addr, int type, size_t sym_val, size_t sym_size, unsigned char *base_addr, size_t addend)
  7. {
  8. switch(type) {
  9. case R_MICROBLAZE_32:
  10. case R_MICROBLAZE_GLOB_DAT:
  11. case R_MICROBLAZE_JUMP_SLOT:
  12. *reloc_addr = sym_val + addend;
  13. break;
  14. case R_MICROBLAZE_REL:
  15. *reloc_addr = (size_t)base_addr + addend;
  16. break;
  17. case R_MICROBLAZE_COPY:
  18. memcpy(reloc_addr, (void *)sym_val, sym_size);
  19. break;
  20. }
  21. }
  22. #include "syscall.h"
  23. void __reloc_self(int c, size_t *a, size_t *dynv)
  24. {
  25. char dot = '.', ex = 'x';
  26. char *base;
  27. size_t t[20], n;
  28. for (a+=c+1; *a; a++);
  29. for (a++; *a; a+=2) if (*a<20) t[*a] = a[1];
  30. base = (char *)t[AT_BASE];
  31. if (!base) base = (char *)(t[AT_PHDR] & -4096);
  32. for (a=dynv; *a; a+=2) if (*a<20) t[*a] = a[1];
  33. n = t[DT_RELASZ];
  34. for (a=(void *)(base+t[DT_RELA]); n; a+=3, n-=12)
  35. if (a[1]%256 == R_MICROBLAZE_REL)
  36. *(size_t *)(base+a[0]) = (size_t)base + a[2];
  37. }