- Upgrade to GDB 6.7. Drop redundant patches, forward-port remaining ones.

- Fix rereading of the main executable on its change.

gdb-6.5-bz181390-memory-address-width.patch

@@ -64,7 +64,7 @@ diff -u -p -r1.36 value.c
  {
    /* Assume a CORE_ADDR can fit in a LONGEST (for now).  Not sure
       whether we want this to be true eventually.  */
-@@ -1054,6 +1053,33 @@ value_as_address (struct value *val)
+@@ -1054,6 +1053,34 @@ value_as_address (struct value *val)
    return unpack_long (value_type (val), value_contents (val));
  #endif
  }
@@ -76,6 +76,7 @@ diff -u -p -r1.36 value.c
 +value_as_address (struct value *val)
 +{
 +  CORE_ADDR addr;
++  int addr_bit;
 +
 +  addr = value_as_address_core (val);
 +
@@ -88,7 +89,7 @@ diff -u -p -r1.36 value.c
 +     either zero or sign extended.  Should ADDRESS_TO_POINTER() or
 +     some ADDRESS_TO_PRINTABLE() be used to do the conversion?  */
 +
-+  int addr_bit = TARGET_ADDR_BIT;
++  addr_bit = gdbarch_addr_bit (current_gdbarch);
 +
 +  if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT))
 +    addr &= ((CORE_ADDR) 1 << addr_bit) - 1;