1 files changed, 87 insertions, 0 deletions
diff --git a/ldso/ldso/m68k/sysdep.h b/ldso/ldso/m68k/sysdep.h
new file mode 100644
index 000000000..24af47ca0
--- /dev/null
+++ b/ldso/ldso/m68k/sysdep.h
@@ -0,0 +1,87 @@
+
+/* Various assmbly language/system dependent hacks that are required
+   so that we can minimize the amount of platform specific code. */
+
+/* Define this if the system uses RELOCA.  */
+#define ELF_USES_RELOCA
+
+/* Get a pointer to the argv array.  On many platforms this can be
+   just the address if the first argument, on other platforms we need
+   to do something a little more subtle here.  */
+#define GET_ARGV(ARGVP, ARGS) ((ARGVP) = ((unsigned int *) &(ARGS)))
+
+/* Get the address of the Global offset table.  This must be absolute,
+   not relative.  */
+#define GET_GOT(X)     __asm__ ("movel %%a5,%0" : "=g" (X))
+
+/* Initialization sequence for a GOT.  */
+#define INIT_GOT(GOT_BASE,MODULE)		\
+{						\
+  GOT_BASE[2] = (int) _dl_linux_resolve;	\
+  GOT_BASE[1] = (int) (MODULE);			\
+}
+
+/* Here is a macro to perform a relocation.  This is only used when
+   bootstrapping the dynamic loader.  RELP is the relocation that we
+   are performing, REL is the pointer to the address we are
+   relocating.  SYMBOL is the symbol involved in the relocation, and
+   LOAD is the load address. */
+#define PERFORM_BOOTSTRAP_RELOC(RELP,REL,SYMBOL,LOAD)		\
+  switch (ELF32_R_TYPE ((RELP)->r_info))			\
+    {								\
+    case R_68K_8:						\
+      *(char *) (REL) = (SYMBOL) + (RELP)->r_addend;		\
+      break;							\
+    case R_68K_16:						\
+      *(short *) (REL) = (SYMBOL) + (RELP)->r_addend;		\
+      break;							\
+    case R_68K_32:						\
+      *(REL) = (SYMBOL) + (RELP)->r_addend;			\
+      break;							\
+    case R_68K_PC8:						\
+      *(char *) (REL) = ((SYMBOL) + (RELP)->r_addend		\
+			 - (unsigned int) (REL));		\
+      break;							\
+    case R_68K_PC16:						\
+      *(short *) (REL) = ((SYMBOL) + (RELP)->r_addend		\
+			  - (unsigned int) (REL));		\
+      break;							\
+    case R_68K_PC32:						\
+      *(REL) = ((SYMBOL) + (RELP)->r_addend			\
+		- (unsigned int) (REL));			\
+      break;							\
+    case R_68K_GLOB_DAT:					\
+    case R_68K_JMP_SLOT:					\
+      *(REL) = (SYMBOL);					\
+      break;							\
+    case R_68K_RELATIVE:		/* Compatibility kludge */ \
+      *(REL) = ((unsigned int) (LOAD) + ((RELP)->r_addend ? : *(REL))); \
+      break;							\
+    default:							\
+      _dl_exit (1);						\
+    }
+
+
+/* Transfer control to the user's application, once the dynamic loader
+   is done.  */
+
+#define START()					\
+  __asm__ volatile ("unlk %%a6\n\t"		\
+		    "jmp %0@"			\
+		    : : "a" (_dl_elf_main));
+
+
+
+/* Here we define the magic numbers that this dynamic loader should accept */
+
+#define MAGIC1 EM_68K
+#undef MAGIC2
+/* Used for error messages */
+#define ELF_TARGET "m68k"
+
+struct elf_resolve;
+extern unsigned int _dl_linux_resolver (int, int, struct elf_resolve *, int);
+
+/* Define this because we do not want to call .udiv in the library.
+   Not needed for m68k.  */
+#define do_rem(result, n, base)  ((result) = (n) % (base))