* arch-utils.c (gdbarch_info_init): Set osabi to

	GDB_OSABI_UNINITIALIZED.
	* gdbarch.sh: Add osabi to struct gdbarch and to struct
	gdbarch_info.  Include "osabi.h" in gdbarch.c.  Check osabi
	in gdbarch_list_lookup_by_info and in gdbarch_update_p.
	* gdbarch.c: Regenerated.
	* gdbarch.h: Regenerated.
	* osabi.c (gdbarch_lookup_osabi): Return GDB_OSABI_UNINITIALIZED if
	there's no BFD.
	(gdbarch_init_osabi): Remove osabi argument; use info.osabi.
	* osabi.h (enum gdb_osabi): Move to defs.h.
	(gdbarch_init_osabi): Update prototype.
	* defs.h (enum gdb_osabi): Moved here.
	* Makefile.in: Update dependencies.

Plus updates to alpha, arm, hppa, i386, mips, ns32k, ppc, sh, sparc, and vax
ports to match.

1 files changed, 19 insertions, 34 deletions

diff --git a/gdb/arm-tdep.c b/gdb/arm-tdep.c
index e43c333..4c3f7fb 100644
--- a/gdb/arm-tdep.c
+++ b/gdb/arm-tdep.c
@@ -34,6 +34,7 @@
 #include "value.h"
 #include "arch-utils.h"
 #include "solib-svr4.h"
+#include "osabi.h"
 
 #include "arm-tdep.h"
 #include "gdb/sim-arm.h"
@@ -2814,44 +2815,33 @@ arm_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 {
   struct gdbarch_tdep *tdep;
   struct gdbarch *gdbarch;
-  enum gdb_osabi osabi = GDB_OSABI_UNKNOWN;
 
   /* Try to deterimine the ABI of the object we are loading.  */
 
-  if (info.abfd != NULL)
+  if (info.abfd != NULL && info.osabi == GDB_OSABI_UNKNOWN)
     {
-      osabi = gdbarch_lookup_osabi (info.abfd);
-      if (osabi == GDB_OSABI_UNKNOWN)
+      switch (bfd_get_flavour (info.abfd))
 	{
-	  switch (bfd_get_flavour (info.abfd))
-	    {
-	    case bfd_target_aout_flavour:
-	      /* Assume it's an old APCS-style ABI.  */
-	      osabi = GDB_OSABI_ARM_APCS;
-	      break;
+	case bfd_target_aout_flavour:
+	  /* Assume it's an old APCS-style ABI.  */
+	  info.osabi = GDB_OSABI_ARM_APCS;
+	  break;
 
-	    case bfd_target_coff_flavour:
-	      /* Assume it's an old APCS-style ABI.  */
-	      /* XXX WinCE?  */
-	      osabi = GDB_OSABI_ARM_APCS;
-	      break;
+	case bfd_target_coff_flavour:
+	  /* Assume it's an old APCS-style ABI.  */
+	  /* XXX WinCE?  */
+	  info.osabi = GDB_OSABI_ARM_APCS;
+	  break;
 
-	    default:
-	      /* Leave it as "unknown".  */
-	    }
+	default:
+	  /* Leave it as "unknown".  */
 	}
     }
 
-  /* Find a candidate among extant architectures.  */
-  for (arches = gdbarch_list_lookup_by_info (arches, &info);
-       arches != NULL;
-       arches = gdbarch_list_lookup_by_info (arches->next, &info))
-    {
-      /* Make sure the ABI selection matches.  */
-      tdep = gdbarch_tdep (arches->gdbarch);
-      if (tdep && tdep->osabi == osabi)
-	return arches->gdbarch;
-    }
+  /* If there is already a candidate, use it.  */
+  arches = gdbarch_list_lookup_by_info (arches, &info);
+  if (arches != NULL)
+    return arches->gdbarch;
 
   tdep = xmalloc (sizeof (struct gdbarch_tdep));
   gdbarch = gdbarch_alloc (&info, tdep);
@@ -2860,8 +2850,6 @@ arm_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
      ready to unwind the PC first (see frame.c:get_prev_frame()).  */
   set_gdbarch_deprecated_init_frame_pc (gdbarch, init_frame_pc_default);
 
-  tdep->osabi = osabi;
-
   /* This is the way it has always defaulted.  */
   tdep->fp_model = ARM_FLOAT_FPA;
 
@@ -2992,7 +2980,7 @@ arm_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 					 arm_coff_make_msymbol_special);
 
   /* Hook in the ABI-specific overrides, if they have been registered.  */
-  gdbarch_init_osabi (info, gdbarch, osabi);
+  gdbarch_init_osabi (info, gdbarch);
 
   /* Now we have tuned the configuration, set a few final things,
      based on what the OS ABI has told us.  */
@@ -3058,9 +3046,6 @@ arm_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file)
   if (tdep == NULL)
     return;
 
-  fprintf_unfiltered (file, "arm_dump_tdep: OS ABI = %s\n",
-		      gdbarch_osabi_name (tdep->osabi));
-
   fprintf_unfiltered (file, "arm_dump_tdep: Lowest pc = 0x%lx",
 		      (unsigned long) tdep->lowest_pc);
 }