dynamic linking support for powerpc

[musl] / arch / powerpc / reloc.h

diff --git a/arch/powerpc/reloc.h b/arch/powerpc/reloc.h
index 58e482d..113dfa1 100644 (file)
--- a/arch/powerpc/reloc.h
+++ b/arch/powerpc/reloc.h
@@ -16,21 +16,40 @@ static inline void do_single_reloc(
        switch(type) {
        case R_PPC_GLOB_DAT:
        case R_PPC_JMP_SLOT:
-               *reloc_addr = sym_val;
-               break;
-       case R_PPC_REL32:
-               if (sym_val) *reloc_addr += sym_val;
-               else *reloc_addr += (size_t)base_addr;
+       case R_PPC_ADDR32:
+               *reloc_addr = sym_val + addend;
                break;
        case R_PPC_COPY:
                memcpy(reloc_addr, (void *)sym_val, sym_size);
                break;
        case R_PPC_RELATIVE:
-               *reloc_addr += (size_t)base_addr;
+               *reloc_addr = (size_t)base_addr + addend;
                break;
-       //case R_PPC64_DTPMOD64:  //R_X86_64_DTPMOD64:
-       case R_PPC_DTPMOD32:  //R_386_TLS_DTPMOD32:
+       case R_PPC_DTPMOD32:
                *reloc_addr = def.dso ? def.dso->tls_id : self->tls_id;
                break;
+       case R_PPC_DTPREL32:
+               *reloc_addr = def.sym->st_value + addend;
+               break;
+       case R_PPC_TPREL32:
+               *reloc_addr += def.sym
+                       ? def.sym->st_value + def.dso->tls_offset - 0x7000
+                       : self->tls_offset - 0x7000;
+               break;
        }
 }
+
+void __reloc_self(int c, size_t *a, size_t *dynv)
+{
+       char *base;
+       size_t t[20], n;
+       for (a+=c+1; *a; a++);
+       for (a++; *a; a+=2) if (*a<20) t[*a] = a[1];
+       base = (char *)t[AT_BASE];
+       if (!base) base = (char *)(t[AT_PHDR] & -4096);
+       for (a=dynv; *a; a+=2) if (*a<20) t[*a] = a[1];
+       n = t[DT_RELASZ];
+       for (a=(void *)(base+t[DT_RELA]); n; a+=3, n-=12)
+               if (a[1]%256 == R_PPC_RELATIVE)
+                       *(size_t *)(base+a[0]) = (size_t)base + a[2];
+}