use modutils for non Intel arch's

1 files changed, 226 insertions, 0 deletions

diff --git a/mdk-stage1/insmod-modutils/obj/obj_sparc.c b/mdk-stage1/insmod-modutils/obj/obj_sparc.c
new file mode 100644
index 000000000..1a03c9090
--- /dev/null
+++ b/mdk-stage1/insmod-modutils/obj/obj_sparc.c
@@ -0,0 +1,226 @@
+/* Sparc specific support for Elf loading and relocation.
+   Copyright 1996, 1997 Linux International.
+
+   Contributed by Richard Henderson <rth@tamu.edu>
+
+   This file is part of the Linux modutils.
+
+   This program is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the
+   Free Software Foundation; either version 2 of the License, or (at your
+   option) any later version.
+
+   This program is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ident "$Id$"
+
+#include <stddef.h>
+#include <module.h>
+#include <obj.h>
+#include <util.h>
+
+
+/*======================================================================*/
+
+struct obj_file *
+arch_new_file (void)
+{
+  return xmalloc(sizeof(struct obj_file));
+}
+
+struct obj_section *
+arch_new_section (void)
+{
+  return xmalloc(sizeof(struct obj_section));
+}
+
+struct obj_symbol *
+arch_new_symbol (void)
+{
+  return xmalloc(sizeof(struct obj_symbol));
+}
+
+int
+arch_load_proc_section(struct obj_section *sec, int fp)
+{
+    /* Assume it's just a debugging section that we can safely
+       ignore ...  */
+    sec->contents = NULL;
+
+    return 0;
+}
+
+enum obj_reloc
+arch_apply_relocation (struct obj_file *ef,
+		       struct obj_section *targsec,
+		       struct obj_section *symsec,
+		       struct obj_symbol *sym,
+		       Elf32_Rela *rel,
+		       Elf32_Addr v)
+{
+  Elf32_Addr *loc = (Elf32_Addr *)(targsec->contents + rel->r_offset);
+  Elf32_Addr dot = targsec->header.sh_addr + rel->r_offset;
+
+  enum obj_reloc ret = obj_reloc_ok;
+
+  switch (ELF32_R_TYPE(rel->r_info))
+    {
+    case R_SPARC_NONE:
+      break;
+    case R_SPARC_8:
+      if (v > 0xff)
+	ret = obj_reloc_overflow;
+      *loc = (*loc & ~0xff) | (v & 0xff);
+      break;
+    case R_SPARC_16:
+      if (v > 0xffff)
+	ret = obj_reloc_overflow;
+      *loc = (*loc & ~0xffff) | (v & 0xffff);
+      break;
+    case R_SPARC_32:
+      *loc = v;
+      break;
+    case R_SPARC_DISP8:
+      v -= dot;
+      if (v > 0xff)
+        ret = obj_reloc_overflow;
+      *loc = (*loc & ~0xff) | (v & 0xff);
+      break;
+    case R_SPARC_DISP16:
+      v -= dot;
+      if (v > 0xffff)
+	ret = obj_reloc_overflow;
+      *loc = (*loc & ~0xffff) | (v & 0xffff);
+      break;
+    case R_SPARC_DISP32:
+      v -= dot;
+      *loc = v;
+      break;
+    case R_SPARC_WDISP30:
+      v -= dot;
+      if (v % 4)
+	ret = obj_reloc_dangerous;
+      *loc = (*loc & ~0x3fffffff) | (v >> 2);
+      break;
+    case R_SPARC_WDISP22:
+      v -= dot;
+      if (v % 4)
+	ret = obj_reloc_dangerous;
+      *loc = (*loc & ~0x3fffff) | ((v >> 2) & 0x3fffff);
+      break;
+    case R_SPARC_HI22:
+      *loc = (*loc & ~0x3fffff) | (v >> 10);
+      break;
+    case R_SPARC_22:
+      if (v > 0x3fffff)
+	ret = obj_reloc_overflow;
+      *loc = (*loc & ~0x3fffff) | (v & 0x3fffff);
+      break;
+    case R_SPARC_13:
+      if (v > 0x1fff)
+	ret = obj_reloc_overflow;
+      *loc = (*loc & ~0x1fff) | (v & 0x1fff);
+      break;
+    case R_SPARC_LO10:
+      *loc = (*loc & ~0x3ff) | (v & 0x3ff);
+      break;
+
+    case R_SPARC_PC10:
+      v -= dot;
+      *loc = (*loc & ~0x3ff) | (v & 0x3ff);
+      break;
+    case R_SPARC_PC22:
+      v -= dot;
+      *loc = (*loc & ~0x3fffff) | (v >> 10);
+      break;
+
+    case R_SPARC_UA32:
+      *(((char *)loc) + 0) = (char)(v >> 24);
+      *(((char *)loc) + 1) = (char)(v >> 16);
+      *(((char *)loc) + 2) = (char)(v >> 8);
+      *(((char *)loc) + 3) = (char)v;
+      break;
+
+#ifdef R_SPARC_10
+    case R_SPARC_10:
+      if (v > 0x3ff)
+	ret = obj_reloc_overflow;
+      *loc = (*loc & ~0x3ff) | (v & 0x3ff);
+      break;
+    case R_SPARC_11:
+      if (v > 0x7ff)
+	ret = obj_reloc_overflow;
+      *loc = (*loc & ~0x7ff) | (v & 0x7ff);
+      break;
+    case R_SPARC_WDISP16:
+      v -= dot;
+      if (v % 4)
+	ret = obj_reloc_dangerous;
+      *loc = (*loc & ~0x303fff) | ((v << 4) & 0x300000) | ((v >> 2) & 0x3fff);
+      break;
+    case R_SPARC_WDISP19:
+      v -= dot;
+      if (v % 4)
+	ret = obj_reloc_dangerous;
+      *loc = (*loc & ~0x7ffff) | ((v >> 2) & 0x7ffff);
+      break;
+    case R_SPARC_7:
+      if (v > 0x7f)
+	ret = obj_reloc_overflow;
+      *loc = (*loc & ~0x7f) | (v & 0x7f);
+      break;
+    case R_SPARC_5:
+      if (v > 0x1f)
+	ret = obj_reloc_overflow;
+      *loc = (*loc & ~0x1f) | (v & 0x1f);
+      break;
+    case R_SPARC_6:
+      if (v > 0x3f)
+	ret = obj_reloc_overflow;
+      *loc = (*loc & ~0x3f) | (v & 0x3f);
+      break;
+#endif /* R_SPARC_10 */
+
+    default:
+      ret = obj_reloc_unhandled;
+      break;
+    }
+
+  return ret;
+}
+
+int
+arch_create_got (struct obj_file *ef)
+{
+  return 1;
+}
+
+int
+arch_init_module (struct obj_file *f, struct module *mod)
+{
+  return 1;
+}
+
+int
+arch_finalize_section_address(struct obj_file *f, Elf32_Addr base)
+{
+  int  i, n = f->header.e_shnum;
+
+  f->baseaddr = base;
+  for (i = 0; i < n; ++i)
+    f->sections[i]->header.sh_addr += base;
+  return 1;
+}
+
+int
+arch_archdata (struct obj_file *fin, struct obj_section *sec)
+{
+  return 0;
+}