Adjust for monotone.

1 files changed, 163 insertions, 0 deletions

diff --git a/libebl/i386_symbol.c b/libebl/i386_symbol.c
new file mode 100644
index 00000000..e9eded23
--- /dev/null
+++ b/libebl/i386_symbol.c
@@ -0,0 +1,163 @@
+/* i386 specific symbolic name handling.
+   Copyright (C) 2000, 2001, 2002, 2005 Red Hat, Inc.
+   Written by Ulrich Drepper <[email protected]>, 2000.
+
+   This program is Open Source software; you can redistribute it and/or
+   modify it under the terms of the Open Software License version 1.0 as
+   published by the Open Source Initiative.
+
+   You should have received a copy of the Open Software License along
+   with this program; if not, you may obtain a copy of the Open Software
+   License version 1.0 from http://www.opensource.org/licenses/osl.php or
+   by writing the Open Source Initiative c/o Lawrence Rosen, Esq.,
+   3001 King Ranch Road, Ukiah, CA 95482.   */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <assert.h>
+#include <elf.h>
+#include <stddef.h>
+#include <string.h>
+
+#include <libebl_i386.h>
+
+
+/* Return of the backend.  */
+const char *
+i386_backend_name (void)
+{
+  return "i386";
+}
+
+
+/* Relocation mapping table.  */
+static struct
+{
+  const char *name;
+  enum { both = 0, rel = 1, exec = 2 } appear;
+} reloc_map_table[] =
+  {
+    [R_386_NONE] = { "R_386_NONE", both },
+    [R_386_32] = { "R_386_32", both },
+    [R_386_PC32] = { "R_386_PC32", rel },
+    [R_386_GOT32] = { "R_386_GOT32", rel },
+    [R_386_PLT32] = { "R_386_PLT32", rel },
+    [R_386_COPY] = { "R_386_COPY", exec },
+    [R_386_GLOB_DAT] = { "R_386_GLOB_DAT", exec },
+    [R_386_JMP_SLOT] = { "R_386_JMP_SLOT", exec },
+    [R_386_RELATIVE] = { "R_386_RELATIVE", exec },
+    [R_386_GOTOFF] = { "R_386_GOTOFF", rel },
+    [R_386_GOTPC] = { "R_386_GOTPC", rel },
+    [R_386_32PLT] = { "R_386_32PLT", rel },
+    [R_386_TLS_TPOFF] = { "R_386_TLS_TPOFF", rel },
+    [R_386_TLS_IE] = { "R_386_TLS_IE", rel },
+    [R_386_TLS_GOTIE] = { "R_386_TLS_GOTIE", rel },
+    [R_386_TLS_LE] = { "R_386_TLS_LE", rel },
+    [R_386_TLS_GD] = { "R_386_TLS_GD", rel },
+    [R_386_TLS_LDM] = { "R_386_TLS_LDM", rel },
+    [R_386_16] = { "R_386_16", rel },
+    [R_386_PC16] = { "R_386_PC16", rel },
+    [R_386_8] = { "R_386_8", rel },
+    [R_386_PC8] = { "R_386_PC8", rel },
+    [R_386_TLS_GD_32] = { "R_386_TLS_GD_32", rel },
+    [R_386_TLS_GD_PUSH] = { "R_386_TLS_GD_PUSH", rel },
+    [R_386_TLS_GD_CALL] = { "R_386_TLS_GD_CALL", rel },
+    [R_386_TLS_GD_POP] = { "R_386_TLS_GD_POP", rel },
+    [R_386_TLS_LDM_32] = { "R_386_TLS_LDM_32", rel },
+    [R_386_TLS_LDM_PUSH] = { "R_386_TLS_LDM_PUSH", rel },
+    [R_386_TLS_LDM_CALL] = { "R_386_TLS_LDM_CALL", rel },
+    [R_386_TLS_LDM_POP] = { "R_386_TLS_LDM_POP", rel },
+    [R_386_TLS_LDO_32] = { "R_386_TLS_LDO_32", rel },
+    [R_386_TLS_IE_32] = { "R_386_TLS_IE_32", rel },
+    [R_386_TLS_LE_32] = { "R_386_TLS_LE_32", rel },
+    [R_386_TLS_DTPMOD32] = { "R_386_TLS_DTPMOD32", rel },
+    [R_386_TLS_DTPOFF32] = { "R_386_TLS_DTPOFF32", rel },
+    [R_386_TLS_TPOFF32] = { "R_386_TLS_TPOFF32", rel }
+  };
+
+
+/* Determine relocation type string for x86.  */
+const char *
+i386_reloc_type_name (int type, char *buf __attribute__ ((unused)),
+		      size_t len __attribute__ ((unused)))
+{
+  if (type < 0 || type >= R_386_NUM)
+    return NULL;
+
+  return reloc_map_table[type].name;
+}
+
+
+/* Check for correct relocation type.  */
+bool
+i386_reloc_type_check (int type)
+{
+  return (type >= R_386_NONE && type < R_386_NUM
+	  && reloc_map_table[type].name != NULL) ? true : false;
+}
+
+
+/* Check for correct relocation type use.  */
+bool
+i386_reloc_valid_use (Elf *elf, int type)
+{
+  if (type < R_386_NONE || type >= R_386_NUM
+      || reloc_map_table[type].name == NULL)
+    return false;
+
+  Elf32_Ehdr *ehdr = elf32_getehdr (elf);
+  assert (ehdr != NULL);
+
+  if (reloc_map_table[type].appear == rel)
+    return ehdr->e_type == ET_REL;
+
+  if (reloc_map_table[type].appear == exec)
+    return ehdr->e_type != ET_REL;
+
+  assert (reloc_map_table[type].appear == both);
+  return true;
+}
+
+
+/* Return true if the symbol type is that referencing the GOT.  */
+bool
+i386_gotpc_reloc_check (Elf *elf __attribute__ ((unused)), int type)
+{
+  return type == R_386_GOTPC;
+}
+
+/* Check for the simple reloc types.  */
+Elf_Type
+i386_reloc_simple_type (Elf *elf __attribute__ ((unused)), int type)
+{
+  switch (type)
+    {
+    case R_386_32:
+      return ELF_T_SWORD;
+    case R_386_16:
+      return ELF_T_HALF;
+    case R_386_8:
+      return ELF_T_BYTE;
+    default:
+      return ELF_T_NUM;
+    }
+}
+
+/* Check section name for being that of a debug informatino section.  */
+bool (*generic_debugscn_p) (const char *);
+bool
+i386_debugscn_p (const char *name)
+{
+  return (generic_debugscn_p (name)
+	  || strcmp (name, ".stab") == 0
+	  || strcmp (name, ".stabstr") == 0);
+}
+
+/* Check whether given relocation is a copy relocation.  */
+bool
+i386_copy_reloc_p (int reloc)
+{
+  return reloc == R_386_COPY;
+}