19990502 sourceware importbinu_ss_19990502

1 files changed, 134 insertions, 0 deletions

diff --git a/bfd/cpu-arm.c b/bfd/cpu-arm.c
new file mode 100644
index 0000000..d999c0f
--- /dev/null
+++ b/bfd/cpu-arm.c
@@ -0,0 +1,134 @@
+/* BFD support for the ARM processor
+   Copyright 1994, 95, 1997 Free Software Foundation, Inc.
+   Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
+
+This file is part of BFD, the Binary File Descriptor library.
+
+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.  */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+
+static const bfd_arch_info_type *compatible
+  PARAMS ((const bfd_arch_info_type *, const bfd_arch_info_type *));
+static boolean scan PARAMS ((const struct bfd_arch_info *, const char *));
+
+/* This routine is provided two arch_infos and works out which ARM
+   machine which would be compatible with both and returns a pointer
+   to its info structure */
+
+static const bfd_arch_info_type *
+compatible (a,b)
+     const bfd_arch_info_type * a;
+     const bfd_arch_info_type * b;
+{
+  /* If a & b are for different architecture we can do nothing */
+  if (a->arch != b->arch)
+      return NULL;
+
+  /* If a & b are for the same machine then all is well */
+  if (a->mach == b->mach)
+    return a;
+
+  /* Otherwise if either a or b is the 'default' machine then
+     it can be polymorphed into the other */
+  if (a->the_default)
+    return b;
+  
+  if (b->the_default)
+    return a;
+
+  /* So far all newer ARM architecture cores are supersets of previous cores */
+  if (a->mach < b->mach)
+    return b;
+  else if (a->mach > b->mach)
+    return a;
+
+  /* Never reached! */
+  return NULL;
+}
+
+static struct
+{
+  enum bfd_architecture arch;
+  char *                name;
+}
+processors[] =
+{
+  { bfd_mach_arm_2,  "arm2"     },
+  { bfd_mach_arm_2a, "arm250"   },
+  { bfd_mach_arm_2a, "arm3"     },
+  { bfd_mach_arm_3,  "arm6"     },
+  { bfd_mach_arm_3,  "arm60"    },
+  { bfd_mach_arm_3,  "arm600"   },
+  { bfd_mach_arm_3,  "arm610"   },
+  { bfd_mach_arm_3,  "arm7"     },
+  { bfd_mach_arm_3,  "arm710"   },
+  { bfd_mach_arm_3,  "arm7500"  },
+  { bfd_mach_arm_3,  "arm7d"    },
+  { bfd_mach_arm_3,  "arm7di"   },
+  { bfd_mach_arm_3M, "arm7dm"   },
+  { bfd_mach_arm_3M, "arm7dmi"  },
+  { bfd_mach_arm_4,  "arm8"     },
+  { bfd_mach_arm_4,  "arm810"   },
+  { bfd_mach_arm_4,  "sa1"      },
+  { bfd_mach_arm_4T, "arm7tdmi" }
+};
+
+static boolean 
+scan (info, string)
+     const struct bfd_arch_info * info;
+     const char * string;
+{
+  int  i;
+
+  /* First test for an exact match */
+  if (strcasecmp (string, info->printable_name) == 0)
+    return true;
+
+  /* Next check for a processor name instead of an Architecture name */
+  for (i = sizeof (processors) / sizeof (processors[0]); i--;)
+    {
+      if (strcasecmp (string, processors[ i ].name) == 0)
+	break;
+    }
+
+  if (i != -1 && info->arch == processors[ i ].arch)
+    return true;
+
+  /* Finally check for the default architecture */
+  if (strcasecmp (string, "arm") == 0)
+    return info->the_default;
+  
+  return false;
+}
+
+
+#define N(number, print, default, next)  \
+{  32, 32, 8, bfd_arch_arm, number, "arm", print, 4, default, compatible, scan, next }
+
+static const bfd_arch_info_type arch_info_struct[] =
+{ 
+  N( bfd_mach_arm_2,  "armv2",  false, & arch_info_struct[1] ),
+  N( bfd_mach_arm_2a, "armv2a", false, & arch_info_struct[2] ),
+  N( bfd_mach_arm_3,  "armv3",  false, & arch_info_struct[3] ),
+  N( bfd_mach_arm_3M, "armv3m", false, & arch_info_struct[4] ),
+  N( bfd_mach_arm_4,  "armv4",  false, & arch_info_struct[5] ),
+  N( bfd_mach_arm_4T, "armv4t", false, NULL )
+};
+
+const bfd_arch_info_type bfd_arm_arch =
+  N( 0, "arm", true, & arch_info_struct[0] );