#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
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");
}
}
}
}
+#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
--- /dev/null
+/* Script for -z combreloc: combine and sort reloc sections */
+OUTPUT_FORMAT("elf32-m68k", "elf32-m68k",
+ "elf32-m68k")
+OUTPUT_ARCH(m68k)
+ENTRY(_start)
+SEARCH_DIR("/usr/local/m68k-linux/lib");
+/* Do we need any of these for elf?
+ __DYNAMIC = 0; */
+SECTIONS
+{
+ /* Read-only sections, merged into text segment: */
+ . = 0x60000000 + SIZEOF_HEADERS;
+ .interp : { *(.interp) }
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+ *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*)
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+ *(.rel.ctors)
+ *(.rel.dtors)
+ *(.rel.got)
+ *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*)
+ }
+ .rela.dyn :
+ {
+ *(.rela.init)
+ *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*)
+ *(.rela.fini)
+ *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*)
+ *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*)
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+ .init :
+ {
+ KEEP (*(.init))
+ } =0x4e754e75
+ .plt : { *(.plt) }
+ .text :
+ {
+ *(.text .stub .text.* .gnu.linkonce.t.*)
+ /* .gnu.warning sections are handled specially by elf32.em. */
+ *(.gnu.warning)
+ } =0x4e754e75
+ .fini :
+ {
+ KEEP (*(.fini))
+ } =0x4e754e75
+ PROVIDE (__etext = .);
+ PROVIDE (_etext = .);
+ PROVIDE (etext = .);
+ .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
+ .rodata1 : { *(.rodata1) }
+ .eh_frame_hdr : { *(.eh_frame_hdr) }
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+ . = ALIGN(0x2000) + (. & (0x2000 - 1));
+ /* Ensure the __preinit_array_start label is properly aligned. We
+ could instead move the label definition inside the section, but
+ the linker would then create the section even if it turns out to
+ be empty, which isn't pretty. */
+ . = ALIGN(32 / 8);
+ PROVIDE (__preinit_array_start = .);
+ .preinit_array : { *(.preinit_array) }
+ PROVIDE (__preinit_array_end = .);
+ PROVIDE (__init_array_start = .);
+ .init_array : { *(.init_array) }
+ PROVIDE (__init_array_end = .);
+ PROVIDE (__fini_array_start = .);
+ .fini_array : { *(.fini_array) }
+ PROVIDE (__fini_array_end = .);
+ .data :
+ {
+ *(.data .data.* .gnu.linkonce.d.*)
+ SORT(CONSTRUCTORS)
+ }
+ .data1 : { *(.data1) }
+ .tdata : { *(.tdata .tdata.* .gnu.linkonce.td.*) }
+ .tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) }
+ .eh_frame : { KEEP (*(.eh_frame)) }
+ .gcc_except_table : { *(.gcc_except_table) }
+ .dynamic : { *(.dynamic) }
+ .ctors :
+ {
+ /* gcc uses crtbegin.o to find the start of
+ the constructors, so we make sure it is
+ first. Because this is a wildcard, it
+ doesn't matter if the user does not
+ actually link against crtbegin.o; the
+ linker won't look for a file to match a
+ wildcard. The wildcard also means that it
+ doesn't matter which directory crtbegin.o
+ is in. */
+ KEEP (*crtbegin.o(.ctors))
+ /* We don't want to include the .ctor section from
+ from the crtend.o file until after the sorted ctors.
+ The .ctor section from the crtend file contains the
+ end of ctors marker and it must be last */
+ KEEP (*(EXCLUDE_FILE (*crtend.o ) .ctors))
+ KEEP (*(SORT(.ctors.*)))
+ KEEP (*(.ctors))
+ }
+ .dtors :
+ {
+ KEEP (*crtbegin.o(.dtors))
+ KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors))
+ KEEP (*(SORT(.dtors.*)))
+ KEEP (*(.dtors))
+ }
+ .jcr : { KEEP (*(.jcr)) }
+ .got : { *(.got.plt) *(.got) }
+ _edata = .;
+ PROVIDE (edata = .);
+ __bss_start = .;
+ .bss :
+ {
+ *(.dynbss)
+ *(.bss .bss.* .gnu.linkonce.b.*)
+ *(COMMON)
+ /* Align here to ensure that the .bss section occupies space up to
+ _end. Align after .bss to ensure correct alignment even if the
+ .bss section disappears because there are no input sections. */
+ . = ALIGN(32 / 8);
+ }
+ . = ALIGN(32 / 8);
+ _end = .;
+ PROVIDE (end = .);
+ /* Stabs debugging sections. */
+ .stab 0 : { *(.stab) }
+ .stabstr 0 : { *(.stabstr) }
+ .stab.excl 0 : { *(.stab.excl) }
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+ .stab.index 0 : { *(.stab.index) }
+ .stab.indexstr 0 : { *(.stab.indexstr) }
+ .comment 0 : { *(.comment) }
+ /* DWARF debug sections.
+ Symbols in the DWARF debugging sections are relative to the beginning
+ of the section so we begin them at 0. */
+ /* DWARF 1 */
+ .debug 0 : { *(.debug) }
+ .line 0 : { *(.line) }
+ /* GNU DWARF 1 extensions */
+ .debug_srcinfo 0 : { *(.debug_srcinfo) }
+ .debug_sfnames 0 : { *(.debug_sfnames) }
+ /* DWARF 1.1 and DWARF 2 */
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+ .debug_pubnames 0 : { *(.debug_pubnames) }
+ /* DWARF 2 */
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+ .debug_str 0 : { *(.debug_str) }
+ .debug_loc 0 : { *(.debug_loc) }
+ .debug_macinfo 0 : { *(.debug_macinfo) }
+ /* SGI/MIPS DWARF 2 extensions */
+ .debug_weaknames 0 : { *(.debug_weaknames) }
+ .debug_funcnames 0 : { *(.debug_funcnames) }
+ .debug_typenames 0 : { *(.debug_typenames) }
+ .debug_varnames 0 : { *(.debug_varnames) }
+}