diff options
Diffstat (limited to 'dyngen.c')
| -rw-r--r-- | dyngen.c | 57 |
1 files changed, 57 insertions, 0 deletions
@@ -86,6 +86,13 @@ #define elf_check_arch(x) ((x) == EM_ARM) #define ELF_USES_RELOC +#elif defined(HOST_M68K) + +#define ELF_CLASS ELFCLASS32 +#define ELF_ARCH EM_68K +#define elf_check_arch(x) ((x) == EM_68K) +#define ELF_USES_RELOCA + #else #error unsupported CPU - please update the code #endif @@ -575,6 +582,21 @@ void gen_code(const char *name, host_ulong offset, host_ulong size, relocs, nb_relocs); break; #endif + case EM_68K: + { + uint8_t *p; + p = (void *)(p_end - 2); + if (p == p_start) + error("empty code for %s", name); + // remove NOP's, probably added for alignment + while ((get16((uint16_t *)p) == 0x4e71) && + (p>p_start)) + p -= 2; + if (get16((uint16_t *)p) != 0x4e75) + error("rts expected at the end of %s", name); + copy_size = p - p_start; + } + break; default: error("unknown ELF architecture"); } @@ -1062,6 +1084,41 @@ void gen_code(const char *name, host_ulong offset, host_ulong size, } } } +#elif defined(HOST_M68K) + { + char name[256]; + int type; + int addend; + Elf32_Sym *sym; + for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) { + if (rel->r_offset >= start_offset && + rel->r_offset < start_offset + copy_size) { + sym = &(symtab[ELFW(R_SYM)(rel->r_info)]); + sym_name = strtab + symtab[ELFW(R_SYM)(rel->r_info)].st_name; + if (strstart(sym_name, "__op_param", &p)) { + snprintf(name, sizeof(name), "param%s", p); + } else { + snprintf(name, sizeof(name), "(long)(&%s)", sym_name); + } + type = ELF32_R_TYPE(rel->r_info); + addend = get32((uint32_t *)(text + rel->r_offset)) + rel->r_addend; + switch(type) { + case R_68K_32: + fprintf(outfile, " /* R_68K_32 RELOC, offset %x */\n", rel->r_offset) ; + fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = %s + %#x;\n", + rel->r_offset - start_offset, name, addend ); + break; + case R_68K_PC32: + fprintf(outfile, " /* R_68K_PC32 RELOC, offset %x */\n", rel->r_offset); + fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d) = %s - (long)(gen_code_ptr + %#x) + %#x;\n", + rel->r_offset - start_offset, name, rel->r_offset - start_offset, /*sym->st_value+*/ addend); + break; + default: + error("unsupported m68k relocation (%d)", type); + } + } + } + } #else #error unsupported CPU #endif |