nsz Git - musl/blob - arch/arm/reloc.h

   1 #include <string.h>
   2 #include <elf.h>
   3
   4 #define ETC_LDSO_PATH "/etc/ld-musl-arm.path"
   5
   6 #define IS_COPY(x) ((x)==R_ARM_COPY)
   7 #define IS_PLT(x) ((x)==R_ARM_JUMP_SLOT)
   8
   9 static inline void do_single_reloc(
  10         struct dso *self, unsigned char *base_addr,
  11         size_t *reloc_addr, int type, size_t addend,
  12         Sym *sym, size_t sym_size,
  13         struct symdef def, size_t sym_val)
  14 {
  15         switch(type) {
  16         case R_ARM_ABS32:
  17                 *reloc_addr += sym_val;
  18                 break;
  19         case R_ARM_GLOB_DAT:
  20         case R_ARM_JUMP_SLOT:
  21                 *reloc_addr = sym_val;
  22                 break;
  23         case R_ARM_RELATIVE:
  24                 *reloc_addr += (size_t)base_addr;
  25                 break;
  26         case R_ARM_COPY:
  27                 memcpy(reloc_addr, (void *)sym_val, sym_size);
  28                 break;
  29         case R_ARM_TLS_DTPMOD32:
  30                 *reloc_addr = def.dso ? def.dso->tls_id : self->tls_id;
  31                 break;
  32         case R_ARM_TLS_DTPOFF32:
  33                 *reloc_addr += def.sym->st_value;
  34                 break;
  35         case R_ARM_TLS_TPOFF32:
  36                 *reloc_addr += def.sym
  37                         ? def.sym->st_value + def.dso->tls_offset + 8
  38                         : self->tls_offset + 8;
  39                 break;
  40         }
  41 }