import gdb-1999-12-07 snapshot

12 files changed, 508 insertions, 439 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index ab232fb29d9..43a507c60c4 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,31 @@
+1999-12-07  Jim Blandy  <jimb@cygnus.com>
+
+	Add support for SSE registers in core files.
+	* corelow.c (get_core_register_section): New function.
+	(get_core_registers): Fetch the new ".reg-xfp" sections,
+	in addition to the traditional ".reg" and ".reg2" sections.
+	Check for per-thread variants of all three.  Use
+	get_core_register_section, instead of writing it out over and over
+	again.
+	* i386-linux-nat.c (i386_linux_fetch_core_registers): New function.
+	(i386_linux_nat_core_fns): New core_fns structure.  We do our own
+	core handling now, instead of using the generic code in core-regset.c.
+	(_initialize_i386_linux_nat): New function, needed to register
+	i386_linux_nat_core_fns.
+	* config/i386/linux.mh (NATDEPFILES): Remove core-regset.o;
+	i386-linux-nat.c has its own sniffer now.
+	* gdbcore.h: (struct core_fns): Doc fix.
+
+	* i386v-nat.c (i386_float_info): Definition is #if 0'd; delete it
+	altogether.  This should use the function i387-tdep.c.
+
+	Patch from Mark Kettenis  <kettenis@gnu.org>:
+
+	* config/i386/tm-i386.h (FLOAT_INFO): New define.
+	* i387-tdep.c (print_i387_value, print_i387_ext,
+	print_i387_status_word, print_i387_control_word, i387_float_info):
+	New functions, used to implement generic `info float' command.
+
 1999-12-06  Christopher Faylor  <cgf@cygnus.com>
 
 	* dcache.c (set_dcache_state): New function.
@@ -55,6 +83,23 @@ Thu Dec  2 17:14:53 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 
 	* ser-pipe.c: Include <string.h> for memset().
 
+1999-12-01  Jim Blandy  <jimb@cygnus.com>
+
+	* gdbtypes.c (builtin_type_v4si, builtin_type_v8qi,
+	builtin_type_v4hi, builtin_type_v2si): New SIMD types.
+	(build_gdbtypes): Initialize them.
+	(_initialize_gdbtypes): Gdbarch_swap them.
+	* gdbtypes.h (builtin_type_v4si, builtin_type_v8qi,
+	builtin_type_v4hi, builtin_type_v2si): Declare them. 
+
+	* findvar.c (read_register_bytes, write_register_bytes): Correctly
+	determine how the region the caller is writing overlaps with each
+	register's bytes.
+
+	* value.h (struct value): Doc fixes.
+
+	* valops.c (value_assign): Clarify error message.
+
 1999-12-01  Christopher Faylor  <cgf@cygnus.com>
 
 	* config/i386/tm-cygwin.h: Change tm-i386.h include back to tm-i386v.h.
@@ -187,7 +232,7 @@ Mon Nov 29 11:28:21 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 
 	* stabsread.c: Revert 1999-11-09 Jim Blandy
  	<jimb@zwingli.cygnus.com> and 1999-11-08 Jim Blandy
- 	<jimb@zenia.red-bean.com>.  Broken on non-Linux targets.
+ 	<jimb@cygnus.com>.  Broken on non-Linux targets.
 
 1999-11-26  Elena Zannoni  <ezannoni@kwikemart.cygnus.com>
 
@@ -231,7 +276,7 @@ Wed Nov 17 17:01:06 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 
 	* Makefile.in (i386-tdep.o): Update list of dependencies.
 
-1999-11-22  Jim Blandy  <jimb@zenia.red-bean.com>
+1999-11-22  Jim Blandy  <jimb@cygnus.com>
 
 	* config/i386/tm-i386v.h (NUM_REGS, REGISTER_NAMES,
 	REGISTER_BYTES, REGISTER_BYTE, REGISTER_RAW_SIZE,
@@ -272,7 +317,7 @@ Mon Nov 22 12:02:47 1999  Andrew Cagney  <cagney@b1.cygnus.com>
  	arguments.
 	(print_percentage): Make function void.
 
-1999-11-21  Jim Blandy  <jimb@zenia.red-bean.com>
+1999-11-21  Jim Blandy  <jimb@cygnus.com>
 
 	Make the bcache hash table grow.
 	* bcache.h (BCACHE_NUM_BUCKETS): Delete definition.
@@ -292,7 +337,7 @@ Mon Nov 22 12:02:47 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 	freeing the bcache's obstack directly.
 	* symfile.c (reread_symbols): Same.
 
-1999-11-20  Jim Blandy  <jimb@zenia.red-bean.com>
+1999-11-20  Jim Blandy  <jimb@cygnus.com>
 
 	* bcache.c, bcache.h: Rewritten.  New version imposes less memory
 	overhead, and has a more effective hash function, so it's probably
@@ -526,7 +571,7 @@ Tue Nov  9 15:33:43 1999  Andrew Cagney  <cagney@b1.cygnus.com>
  	statement.
 	(info_cb): Use paddr when printing addresses.
 
-1999-11-08  Jim Blandy  <jimb@zenia.red-bean.com>
+1999-11-08  Jim Blandy  <jimb@cygnus.com>
 
 	* defs.h (ULONGEST_MAX, LONGEST_MAX): New definitions.
 	* stabsread.c (read_huge_number): Parse and return LONGEST values.
@@ -951,7 +996,7 @@ Thu Nov  4 17:36:27 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 
 	* infcmd.c: Fix typo.
 
-1999-10-28  Jim Blandy  <jimb@zenia.red-bean.com>
+1999-10-28  Jim Blandy  <jimb@cygnus.com>
 
 	* gdbtypes.c (init_simd_type): The upper bound to
 	create_range_type is inclusive, not exclusive.
@@ -1096,12 +1141,12 @@ Sat Oct 23 16:39:34 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 	to avoid compiler warnings.
 	(catch_fork_command_1): Ditto.
 
-1999-10-20  Jim Blandy  <jimb@cris.red-bean.com>
+1999-10-20  Jim Blandy  <jimb@cygnus.com>
 
 	* Makefile.in (dwarf2read.o): Note that this depends on bfd/elf-bfd.h.
 	(elf_bfd_h): New variable.
 
-1999-10-19  Jim Blandy  <jimb@zenia.red-bean.com>
+1999-10-19  Jim Blandy  <jimb@cygnus.com>
 
 	* config/i386/tm-i386.h (REGISTER_NAMES): Change names of FPU
 	instruction and operand pointer registers to improve consistency,
@@ -1133,7 +1178,7 @@ Mon Oct 18 17:32:51 1999  Andrew Cagney  <cagney@b1.cygnus.com>
  	chunk/block write a run-time option. Check for quit_flag.
 	Use target_write_memory_partial for downloads.
 
-1999-10-18  Jim Blandy  <jimb@zenia.red-bean.com>
+1999-10-18  Jim Blandy  <jimb@cygnus.com>
 
 	Change Linux x86 register support to use the new tm-i386.h layout.
 	* config/i386/tm-linux.h (HAVE_I387_REGS): #define this, so we get
@@ -1247,7 +1292,7 @@ Sun Oct 17 13:58:56 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 	(generic_load): Don't cast the result of bfd_get_section_name.
   	Replace ``sect'' with ``sect_name'', use consistently.
 
-1999-10-15  Jim Blandy  <jimb@zenia.red-bean.com>
+1999-10-15  Jim Blandy  <jimb@cygnus.com>
 
 	Add beginnings of support for SIMD register types.
 	* gdbtypes.c (init_simd_type): New function for building
@@ -1268,7 +1313,7 @@ Fri Oct 15 17:46:39 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 	(_initialize_dcache): Fix description of ``set remotecache''.
   	Cache is OFF by default.
 
-1999-10-13  Jim Blandy  <jimb@zenia.red-bean.com>
+1999-10-13  Jim Blandy  <jimb@cygnus.com>
 
 	* valops.c (value_push): Don't forget to initialize container_len.
 
@@ -1331,7 +1376,7 @@ Tue Oct 12 12:19:07 1999  David Taylor  <taylor@texas.cygnus.com>
 	* config/pa/tm-hppa.h (SYMBOLS_CAN_START_WITH_DOLLAR): It's not
 	enough to #define this; you have to give it a non-zero value.
 
-1999-10-11  Jim Blandy  <jimb@zenia.red-bean.com>
+1999-10-11  Jim Blandy  <jimb@cygnus.com>
 
 	Fix from Jim Kingdon <kingdon@redhat.com>, with tweaks to make it
 	gdbarch- and bigendian-friendly:
@@ -1958,7 +2003,7 @@ Tue Sep 28 11:08:34 1999  Jeffrey A Law  (law@cygnus.com)
  	remote.c, top.c, tracepoint.c, utils.c (async_p): Change var name
  	to event_loop_p.
 	
-1999-09-28  Jim Blandy  <jimb@cris.red-bean.com>
+1999-09-28  Jim Blandy  <jimb@cygnus.com>
 
 	* hppa-tdep.c (skip_prologue_hard_way): Recognize ldo insns
 	which generate pointers into the argument list.
@@ -2278,7 +2323,7 @@ Fri Sep 17 19:28:17 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 	* breakpoints.c (delete_command): Move declaration from here.
 	* breakpoints.h (delete_command): To here.
 	
-1999-09-18  Jim Blandy  <jimb@cris.red-bean.com>
+1999-09-18  Jim Blandy  <jimb@cygnus.com>
 
 	* hppa-tdep.c (in_solib_call_trampoline): If we can't recognize
 	the instruction we're at, we're not in a stub.
@@ -2331,7 +2376,7 @@ Sat Sep 18 07:13:03 1999  Jeffrey A Law  (law@cygnus.com)
 	(inferior_event_handler): New function. Smarter inferior event
  	handling.
 
-1999-09-18  Jim Blandy  <jimb@cris.red-bean.com>
+1999-09-18  Jim Blandy  <jimb@cygnus.com>
 
 	* pa64solib.c (pa64_solib_create_inferior_hook): Remove code which
 	tries to set __d_pid; it's not relevant to PA64 shared libraries.
@@ -2358,7 +2403,7 @@ Sat Sep 18 07:13:03 1999  Jeffrey A Law  (law@cygnus.com)
 	* breakpoint.c (permanent_breakpoint_here_p): Delete.
   	Accidentally left over from previous changes.
 
-1999-09-17  Jim Blandy  <jimb@cris.red-bean.com>
+1999-09-17  Jim Blandy  <jimb@cygnus.com>
 
 	* config/pa/tm-hppa64.h (ARGS_GROW_DOWNWARD): Deleted.  There are
 	many more differences between the 32- and 64-bit ABI's than the
@@ -2484,11 +2529,11 @@ Thu Sep 16 09:04:53 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 	* remote-d10v.c: Remove.
 	* config/d10v/d10v.mt (TDEPFILES): Remove remote-d10v.o.
 
-1999-09-15  Jim Blandy  <jimb@cris.red-bean.com>
+1999-09-15  Jim Blandy  <jimb@cygnus.com>
 
 	* breakpoint.c (remove_breakpoint): Return zero, not nothing.
 
-1999-09-14  Jim Blandy  <jimb@cris.red-bean.com>
+1999-09-14  Jim Blandy  <jimb@cygnus.com>
 
 	* hppa-tdep.c (frame_chain): If the unwind info says we've saved
 	r3, don't trust it.  Call get_frame_saved_regs and see if we can
@@ -2509,7 +2554,7 @@ Tue Sep 14 14:34:28 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 	* remote-st.c (connect_command), remote-os9k.c (connect_command):
  	Fix.  Call FD_SET et.al. with FD instead of serial_t.
 
-1999-09-14  Jim Blandy  <jimb@cris.red-bean.com>
+1999-09-14  Jim Blandy  <jimb@cygnus.com>
 
 	* hppa-tdep.c (hppa_frame_find_saved_regs): The two possible
 	instructions for saving the return pointer (32- and 64-bit) save
@@ -2716,7 +2761,7 @@ Mon Sep 13 18:54:05 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 	
 Mon Sep 13 17:51:28 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 
-	From 1999-09-12 Jim Blandy <jimb@cris.red-bean.com>:
+	From 1999-09-12 Jim Blandy <jimb@cygnus.com>:
 	* gdbarch.sh (generating setters): Use sed to generate the proper
 	indentation, not tr; tr's behavior is notoriously unportable.
 
@@ -4236,11 +4281,11 @@ Wed Aug  4 10:42:58 1999  Fred Fish  <fnf@cygnus.com>
 	to a CORE_ADDR look like an subtraction expression.
 	(add_symbol_file_command): Ditto.
 
-1999-07-30  Jim Blandy  <jimb@cris.red-bean.com>
+1999-07-30  Jim Blandy  <jimb@cygnus.com>
 
 	* hppa-tdep.c (pa_print_registers): Frob register output some more.
 
-1999-07-29  Jim Blandy  <jimb@cris.red-bean.com>
+1999-07-29  Jim Blandy  <jimb@cygnus.com>
 
 	* config/pa/nm-hppah.h (PTRACE_ARG3_TYPE): After more
 	consideration, make this a CORE_ADDR, like WDB did. 
@@ -4280,7 +4325,7 @@ Wed Aug  4 10:42:58 1999  Fred Fish  <fnf@cygnus.com>
 	* hppah-nat.c (child_xfer_memory): Correctly compute mask to round
 	address to an int boundary.
 
-1999-07-29  Jim Blandy  <jimb@savonarola.red-bean.com>
+1999-07-29  Jim Blandy  <jimb@cygnus.com>
 
 	Change from Ian Lance Taylor <ian@zembu.com>.  The
 	i386_linux_sigtramp* functions should be moved to
@@ -4303,7 +4348,7 @@ Wed Aug  4 10:42:58 1999  Fred Fish  <fnf@cygnus.com>
 	(i386_linux_sigtramp_saved_pc): Likewise.
 	(i386_linux_sigtramp_saved_sp): Likewise.
 
-1999-07-28  Jim Blandy  <jimb@savonarola.red-bean.com>
+1999-07-28  Jim Blandy  <jimb@cygnus.com>
 
 	* infrun.c (handle_inferior_event): Don't try to use the code for
 	stepping over a function call to also handle stepping out of a
@@ -4318,7 +4363,7 @@ Wed Aug  4 10:42:58 1999  Fred Fish  <fnf@cygnus.com>
  	from readline the same way as a multiline command. This avoids
  	missing detecting when the user presses just 'enter'.
 
-1999-07-28  Jim Blandy  <jimb@savonarola.red-bean.com>
+1999-07-28  Jim Blandy  <jimb@cygnus.com>
 
 	Provide more sanity checking:
 	* infrun.c (handle_inferior_event): Before assigning a new
@@ -4365,7 +4410,7 @@ Mon Jul 26 17:13:39 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 
 	* remote.c (_initialize_remote): "remotebreak" should be a var_boolean.
 
-1999-07-15  Jim Blandy  <jimb@cris.red-bean.com>
+1999-07-15  Jim Blandy  <jimb@cygnus.com>
 	
 	Make the output from "info registers" fit withinin 80 columns.
 	* hppa-tdep.c (pa_print_registers): Make it easy to change row and
diff --git a/gdb/Makefile.in b/gdb/Makefile.in
index 9ae47468b32..b7e548d79d5 100644
--- a/gdb/Makefile.in
+++ b/gdb/Makefile.in
@@ -229,7 +229,7 @@ CDEPS = $(XM_CDEPS) $(TM_CDEPS) $(NAT_CDEPS) $(SIM) $(BFD) $(READLINE) \
 ADD_FILES = $(REGEX) $(XM_ADD_FILES) $(TM_ADD_FILES) $(NAT_ADD_FILES)
 ADD_DEPS = $(REGEX1) $(XM_ADD_FILES) $(TM_ADD_FILES) $(NAT_ADD_FILES)
 
-VERSION = 19991206
+VERSION = 19991207
 DIST=gdb
 
 LINT=/usr/5bin/lint
diff --git a/gdb/config/i386/linux.mh b/gdb/config/i386/linux.mh
index 1fe1e364cbe..8464934ef95 100644
--- a/gdb/config/i386/linux.mh
+++ b/gdb/config/i386/linux.mh
@@ -5,4 +5,4 @@ XDEPFILES= ser-tcp.o
 
 NAT_FILE= nm-linux.h
 NATDEPFILES= infptrace.o solib.o inftarg.o fork-child.o corelow.o \
-	core-aout.o core-regset.o i386v-nat.o i386-linux-nat.o linux-thread.o
+	core-aout.o i386v-nat.o i386-linux-nat.o linux-thread.o
diff --git a/gdb/config/i386/tm-i386.h b/gdb/config/i386/tm-i386.h
index efc3f417491..51818453ad4 100644
--- a/gdb/config/i386/tm-i386.h
+++ b/gdb/config/i386/tm-i386.h
@@ -259,6 +259,13 @@ extern void double_to_i387 (char *, char *);
   double_to_i387((char *)&val, (TO));				\
 }
 
+/* Print out the i387 floating point state.  */
+#ifdef HAVE_I387_REGS
+extern void i387_float_info (void);
+#define FLOAT_INFO { i387_float_info (); }
+#endif
+
+
 /* Store the address of the place in which to copy the structure the
    subroutine will return.  This is called from call_function. */
 
diff --git a/gdb/corelow.c b/gdb/corelow.c
index 9e4a0f5b04a..d5998f4c42d 100644
--- a/gdb/corelow.c
+++ b/gdb/corelow.c
@@ -373,6 +373,62 @@ core_detach (args, from_tty)
     printf_filtered ("No core file now.\n");
 }
 
+
+/* Try to retrieve registers from a section in core_bfd, and supply
+   them to core_vec->core_read_registers, as the register set numbered
+   WHICH.
+
+   If inferior_pid is zero, do the single-threaded thing: look for a
+   section named NAME.  If inferior_pid is non-zero, do the
+   multi-threaded thing: look for a section named "NAME/PID", where
+   PID is the shortest ASCII decimal representation of inferior_pid.
+
+   HUMAN_NAME is a human-readable name for the kind of registers the
+   NAME section contains, for use in error messages.
+
+   If REQUIRED is non-zero, print an error if the core file doesn't
+   have a section by the appropriate name.  Otherwise, just do nothing.  */
+
+static void
+get_core_register_section (char *name,
+			   int which,
+			   char *human_name,
+			   int required)
+{
+  char section_name[100];
+  sec_ptr section;
+  bfd_size_type size;
+  char *contents;
+
+  if (inferior_pid)
+    sprintf (section_name, "%s/%d", name, inferior_pid);
+  else
+    strcpy (section_name, name);
+
+  section = bfd_get_section_by_name (core_bfd, section_name);
+  if (! section)
+    {
+      if (required)
+	warning ("Couldn't find %s registers in core file.\n", human_name);
+      return;
+    }
+
+  size = bfd_section_size (core_bfd, section);
+  contents = alloca (size);
+  if (! bfd_get_section_contents (core_bfd, section, contents,
+				  (file_ptr) 0, size))
+    {
+      warning ("Couldn't read %s registers from `%s' section in core file.\n",
+	       human_name, name);
+      return;
+    }
+
+  core_vec->core_read_registers (contents, size, which, 
+				 ((CORE_ADDR)
+				  bfd_section_vma (core_bfd, section)));
+}
+
+
 /* Get the registers out of a core file.  This is the machine-
    independent part.  Fetch_core_registers is the machine-dependent
    part, typically implemented in the xm-file for each architecture.  */
@@ -384,67 +440,20 @@ static void
 get_core_registers (regno)
      int regno;
 {
-  sec_ptr reg_sec;
-  unsigned size;
-  char *the_regs;
-  char secname[30];
+  int status;
 
-  if (core_vec == NULL)
+  if (core_vec == NULL
+      || core_vec->core_read_registers == NULL)
     {
       fprintf_filtered (gdb_stderr,
 		     "Can't fetch registers from this type of core file\n");
       return;
     }
 
-  /* Thread support.  If inferior_pid is non-zero, then we have found a core
-     file with threads (or multiple processes).  In that case, we need to
-     use the appropriate register section, else we just use `.reg'. */
+  get_core_register_section (".reg", 0, "general-purpose", 1);
+  get_core_register_section (".reg2", 2, "floating-point", 0);
+  get_core_register_section (".reg-xfp", 3, "extended floating-point", 0);
 
-  /* XXX - same thing needs to be done for floating-point (.reg2) sections. */
-
-  if (inferior_pid)
-    sprintf (secname, ".reg/%d", inferior_pid);
-  else
-    strcpy (secname, ".reg");
-
-  reg_sec = bfd_get_section_by_name (core_bfd, secname);
-  if (!reg_sec)
-    goto cant;
-  size = bfd_section_size (core_bfd, reg_sec);
-  the_regs = alloca (size);
-  if (bfd_get_section_contents (core_bfd, reg_sec, the_regs, (file_ptr) 0, size) &&
-      core_vec->core_read_registers != NULL)
-    {
-      (core_vec->core_read_registers (the_regs, size, 0,
-				(unsigned) bfd_section_vma (abfd, reg_sec)));
-    }
-  else
-    {
-    cant:
-      fprintf_filtered (gdb_stderr,
-			"Couldn't fetch registers from core file: %s\n",
-			bfd_errmsg (bfd_get_error ()));
-    }
-
-  /* Now do it again for the float registers, if they exist.  */
-  reg_sec = bfd_get_section_by_name (core_bfd, ".reg2");
-  if (reg_sec)
-    {
-      size = bfd_section_size (core_bfd, reg_sec);
-      the_regs = alloca (size);
-      if (bfd_get_section_contents (core_bfd, reg_sec, the_regs, (file_ptr) 0, size) &&
-	  core_vec->core_read_registers != NULL)
-	{
-	  (core_vec->core_read_registers (the_regs, size, 2,
-			       (unsigned) bfd_section_vma (abfd, reg_sec)));
-	}
-      else
-	{
-	  fprintf_filtered (gdb_stderr,
-		       "Couldn't fetch register set 2 from core file: %s\n",
-			    bfd_errmsg (bfd_get_error ()));
-	}
-    }
   registers_fetched ();
 }
 
diff --git a/gdb/gdbcore.h b/gdb/gdbcore.h
index 0db61f992d7..e8e395384f9 100644
--- a/gdb/gdbcore.h
+++ b/gdb/gdbcore.h
@@ -163,15 +163,21 @@ struct core_fns
 
        CORE_REG_SIZE is the size of that area.
 
-       WHICH says which set of registers we are handling (0 = int, 2 = float on
-       machines where they are discontiguous).
+       WHICH says which set of registers we are handling:
+         0 --- integer registers
+         2 --- floating-point registers, on machines where they are
+               discontiguous
+         3 --- extended floating-point registers, on machines where
+               these are present in yet a third area.  (GNU/Linux uses
+               this to get at the SSE registers.)
 
        REG_ADDR is the offset from u.u_ar0 to the register values relative to
        core_reg_sect.  This is used with old-fashioned core files to locate the
        registers in a large upage-plus-stack ".reg" section.  Original upage
        address X is at location core_reg_sect+x+reg_addr. */
 
-    void (*core_read_registers) PARAMS ((char *core_reg_sect, unsigned core_reg_size,
+    void (*core_read_registers) PARAMS ((char *core_reg_sect,
+					 unsigned core_reg_size,
 					 int which, CORE_ADDR reg_addr));
 
     /* Finds the next struct core_fns.  They are allocated and initialized
diff --git a/gdb/gdbserver/low-linux.c b/gdb/gdbserver/low-linux.c
index 3b3e2871466..d8ff5d53e50 100644
--- a/gdb/gdbserver/low-linux.c
+++ b/gdb/gdbserver/low-linux.c
@@ -274,267 +274,6 @@ m68k_linux_register_u_addr (blockend, regnum)
 {
   return (blockend + 4 * regmap[regnum]);
 }
-/* start-sanitize-ia64 */
-#elif defined(IA64_GNULINUX_TARGET)
-#undef NUM_FREGS
-#define NUM_FREGS 0
-
-#include <asm/ptrace_offsets.h>
-
-static int u_offsets[] =
-  {
-    /* general registers */
-    -1,		/* gr0 not available; i.e, it's always zero */
-    PT_R1,
-    PT_R2,
-    PT_R3,
-    PT_R4,
-    PT_R5,
-    PT_R6,
-    PT_R7,
-    PT_R8,
-    PT_R9,
-    PT_R10,
-    PT_R11,
-    PT_R12,
-    PT_R13,
-    PT_R14,
-    PT_R15,
-    PT_R16,
-    PT_R17,
-    PT_R18,
-    PT_R19,
-    PT_R20,
-    PT_R21,
-    PT_R22,
-    PT_R23,
-    PT_R24,
-    PT_R25,
-    PT_R26,
-    PT_R27,
-    PT_R28,
-    PT_R29,
-    PT_R30,
-    PT_R31,
-    /* gr32 through gr127 not directly available via the ptrace interface */
-    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-    /* Floating point registers */
-    -1, -1,	/* f0 and f1 not available (f0 is +0.0 and f1 is +1.0) */
-    PT_F2,
-    PT_F3,
-    PT_F4,
-    PT_F5,
-    PT_F6,
-    PT_F7,
-    PT_F8,
-    PT_F9,
-    PT_F10,
-    PT_F11,
-    PT_F12,
-    PT_F13,
-    PT_F14,
-    PT_F15,
-    PT_F16,
-    PT_F17,
-    PT_F18,
-    PT_F19,
-    PT_F20,
-    PT_F21,
-    PT_F22,
-    PT_F23,
-    PT_F24,
-    PT_F25,
-    PT_F26,
-    PT_F27,
-    PT_F28,
-    PT_F29,
-    PT_F30,
-    PT_F31,
-    PT_F32,
-    PT_F33,
-    PT_F34,
-    PT_F35,
-    PT_F36,
-    PT_F37,
-    PT_F38,
-    PT_F39,
-    PT_F40,
-    PT_F41,
-    PT_F42,
-    PT_F43,
-    PT_F44,
-    PT_F45,
-    PT_F46,
-    PT_F47,
-    PT_F48,
-    PT_F49,
-    PT_F50,
-    PT_F51,
-    PT_F52,
-    PT_F53,
-    PT_F54,
-    PT_F55,
-    PT_F56,
-    PT_F57,
-    PT_F58,
-    PT_F59,
-    PT_F60,
-    PT_F61,
-    PT_F62,
-    PT_F63,
-    PT_F64,
-    PT_F65,
-    PT_F66,
-    PT_F67,
-    PT_F68,
-    PT_F69,
-    PT_F70,
-    PT_F71,
-    PT_F72,
-    PT_F73,
-    PT_F74,
-    PT_F75,
-    PT_F76,
-    PT_F77,
-    PT_F78,
-    PT_F79,
-    PT_F80,
-    PT_F81,
-    PT_F82,
-    PT_F83,
-    PT_F84,
-    PT_F85,
-    PT_F86,
-    PT_F87,
-    PT_F88,
-    PT_F89,
-    PT_F90,
-    PT_F91,
-    PT_F92,
-    PT_F93,
-    PT_F94,
-    PT_F95,
-    PT_F96,
-    PT_F97,
-    PT_F98,
-    PT_F99,
-    PT_F100,
-    PT_F101,
-    PT_F102,
-    PT_F103,
-    PT_F104,
-    PT_F105,
-    PT_F106,
-    PT_F107,
-    PT_F108,
-    PT_F109,
-    PT_F110,
-    PT_F111,
-    PT_F112,
-    PT_F113,
-    PT_F114,
-    PT_F115,
-    PT_F116,
-    PT_F117,
-    PT_F118,
-    PT_F119,
-    PT_F120,
-    PT_F121,
-    PT_F122,
-    PT_F123,
-    PT_F124,
-    PT_F125,
-    PT_F126,
-    PT_F127,
-    /* predicate registers - we don't fetch these individually */
-    -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1,
-    /* branch registers */
-    PT_B0,
-    PT_B1,
-    PT_B2,
-    PT_B3,
-    PT_B4,
-    PT_B5,
-    PT_B6,
-    PT_B7,
-    /* virtual frame pointer and virtual return address pointer */
-    -1, -1,
-    /* other registers */
-    PT_PR,
-    PT_CR_IIP,
-    PT_CR_IPSR,
-    /* kernel registers not visible via ptrace interface (?) */
-    -1, -1, -1, -1, -1, -1, -1, -1,
-    /* hole */
-    -1, -1, -1, -1, -1, -1, -1, -1,
-    PT_AR_RSC,
-    PT_AR_BSP,
-    PT_AR_BSPSTORE,
-    PT_AR_RNAT,
-    -1,
-    -1,		/* Not available: FCR, IA32 floating control register */
-    -1, -1,
-    -1,		/* Not available: EFLAG */
-    -1,		/* Not available: CSD */
-    -1,		/* Not available: SSD */
-    -1,		/* Not available: CFLG */
-    -1,		/* Not available: FSR */
-    -1,		/* Not available: FIR */
-    -1,		/* Not available: FDR */
-    -1,
-    PT_AR_CCV,
-    -1, -1, -1,
-    PT_AR_UNAT,
-    -1, -1, -1,
-    PT_AR_FPSR,
-    -1, -1, -1,
-    -1,		/* Not available: ITC */
-    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1, -1,
-    PT_CR_IFS,	/* was PT_AR_PFS, but it seemed bogus */
-    PT_AR_LC,
-    -1,		/* Not available: EC, the Epilog Count register */
-    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-    -1,
-  };
-
-int
-ia64_register_u_addr (int blockend, int regnum)
-{
-  int addr;
-
-  if (regnum < 0 || regnum >= NUM_REGS)
-    error ("Invalid register number %d.", regnum);
-
-  addr = u_offsets[regnum];
-  if (addr == -1)
-    addr = 0;
-
-  return addr;
-}
-
-initialize_arch()
-{
-  return;
-}
-/* end-sanitize-ia64 */
 #endif
 
 CORE_ADDR
diff --git a/gdb/i386-linux-nat.c b/gdb/i386-linux-nat.c
index ba1f9d28d1e..cec0f8ebb11 100644
--- a/gdb/i386-linux-nat.c
+++ b/gdb/i386-linux-nat.c
@@ -612,6 +612,91 @@ store_inferior_registers (regno)
 
 
 
+/* Interpreting register set info found in core files.  */
+
+/* Provide registers to GDB from a core file.
+
+   (We can't use the generic version of this function in
+   core-regset.c, because Linux has *three* different kinds of
+   register set notes.  core-regset.c would have to call
+   supply_xfpregset, which most platforms don't have.)
+
+   CORE_REG_SECT points to an array of bytes, which are the contents
+   of a `note' from a core file which BFD thinks might contain
+   register contents.  CORE_REG_SIZE is its size.
+
+   WHICH says which register set corelow suspects this is:
+   0 --- the general register set, in gregset format
+   2 --- the floating-point register set, in fpregset format
+   3 --- the extended floating-point register set, in struct
+         user_xfpregs_struct format
+
+   DUMMY isn't used on Linux.  */
+static void
+i386_linux_fetch_core_registers (char *core_reg_sect,
+				 unsigned core_reg_size,
+				 int which,
+				 CORE_ADDR dummy)
+{
+  gregset_t gregset;
+  fpregset_t fpregset;
+
+  switch (which)
+    {
+    case 0:
+      if (core_reg_size != sizeof (gregset))
+	warning ("wrong size gregset struct in core file");
+      else
+	{
+	  memcpy (&gregset, core_reg_sect, sizeof (gregset));
+	  supply_gregset (&gregset);
+	}
+      break;
+
+    case 2:
+      if (core_reg_size != sizeof (fpregset))
+	warning ("wrong size fpregset struct in core file");
+      else
+	{
+	  memcpy (&fpregset, core_reg_sect, sizeof (fpregset));
+	  supply_fpregset (&fpregset);
+	}
+      break;
+
+#ifdef HAVE_PTRACE_GETXFPREGS
+      {
+	struct user_xfpregs_struct xfpregset;
+      case 3:
+	if (core_reg_size != sizeof (struct user_xfpregs_struct))
+	  warning ("wrong size user_xfpregs_struct in core file");
+	else
+	  {
+	    memcpy (&xfpregset, core_reg_sect, sizeof (xfpregset));
+	    supply_xfpregset (&xfpregset);
+	  }
+	break;
+      }
+#endif
+
+    default:
+      /* We've covered all the kinds of registers we know about here,
+         so this must be something we wouldn't know what to do with
+         anyway.  Just ignore it.  */
+      break;
+    }
+}
+
+
+static struct core_fns i386_linux_nat_core_fns =
+{
+  bfd_target_elf_flavour,		/* core_flavour */
+  default_check_format,			/* check_format */
+  default_core_sniffer,			/* core_sniffer */
+  i386_linux_fetch_core_registers,	/* core_read_registers */
+  NULL					/* next */
+};
+
+
 /* Calling functions in shared libraries.  */
 
 /* Find the minimal symbol named NAME, and return both the minsym
@@ -700,3 +785,13 @@ i386_linux_skip_solib_resolver (CORE_ADDR pc)
 
   return 0;
 }
+
+
+
+/* Module initialization.  */
+
+void
+_initialize_i386_linux_nat ()
+{
+  add_core_fns (&i386_linux_nat_core_fns);
+}
diff --git a/gdb/i386v-nat.c b/gdb/i386v-nat.c
index e160385cccf..0bf702c368c 100644
--- a/gdb/i386v-nat.c
+++ b/gdb/i386v-nat.c
@@ -307,88 +307,3 @@ i386_stopped_by_watchpoint (pid)
 }
 
 #endif /* TARGET_HAS_HARDWARE_WATCHPOINTS */
-
-#if 0
-/* using FLOAT_INFO as is would be a problem.  FLOAT_INFO is called
-   via a command xxx and eventually calls ptrace without ever having
-   traversed the target vector.  This would be terribly impolite
-   behaviour for a sun4 hosted remote gdb.
-
-   A fix might be to move this code into the "info registers" command.
-   rich@cygnus.com 15 Sept 92. */
-i386_float_info ()
-{
-  struct user u;		/* just for address computations */
-  int i;
-  /* fpstate defined in <sys/user.h> */
-  struct fpstate *fpstatep;
-  char buf[sizeof (struct fpstate) + 2 * sizeof (int)];
-  unsigned int uaddr;
-  char fpvalid = 0;
-  unsigned int rounded_addr;
-  unsigned int rounded_size;
-  extern int corechan;
-  int skip;
-
-  uaddr = (char *) &u.u_fpvalid - (char *) &u;
-  if (target_has_execution)
-    {
-      unsigned int data;
-      unsigned int mask;
-
-      rounded_addr = uaddr & -sizeof (int);
-      data = ptrace (3, inferior_pid, (PTRACE_ARG3_TYPE) rounded_addr, 0);
-      mask = 0xff << ((uaddr - rounded_addr) * 8);
-
-      fpvalid = ((data & mask) != 0);
-    }
-#if 0
-  else
-    {
-      if (lseek (corechan, uaddr, 0) < 0)
-	perror ("seek on core file");
-      if (myread (corechan, &fpvalid, 1) < 0)
-	perror ("read on core file");
-
-    }
-#endif /* no core support yet */
-
-  if (fpvalid == 0)
-    {
-      printf_unfiltered ("no floating point status saved\n");
-      return;
-    }
-
-  uaddr = (char *) &U_FPSTATE (u) - (char *) &u;
-  if (target_has_execution)
-    {
-      int *ip;
-
-      rounded_addr = uaddr & -sizeof (int);
-      rounded_size = (((uaddr + sizeof (struct fpstate)) - uaddr) +
-		      sizeof (int) - 1) / sizeof (int);
-      skip = uaddr - rounded_addr;
-
-      ip = (int *) buf;
-      for (i = 0; i < rounded_size; i++)
-	{
-	  *ip++ = ptrace (3, inferior_pid, (PTRACE_ARG3_TYPE) rounded_addr, 0);
-	  rounded_addr += sizeof (int);
-	}
-    }
-#if 0
-  else
-    {
-      if (lseek (corechan, uaddr, 0) < 0)
-	perror_with_name ("seek on core file");
-      if (myread (corechan, buf, sizeof (struct fpstate)) < 0)
-	  perror_with_name ("read from core file");
-      skip = 0;
-    }
-#endif /* 0 */
-
-  fpstatep = (struct fpstate *) (buf + skip);
-  print_387_status (fpstatep->status, (struct env387 *) fpstatep->state);
-}
-
-#endif /* never */
diff --git a/gdb/i387-tdep.c b/gdb/i387-tdep.c
index aac013c79a4..0bb16319abe 100644
--- a/gdb/i387-tdep.c
+++ b/gdb/i387-tdep.c
@@ -1,5 +1,5 @@
 /* Intel 387 floating point stuff.
-   Copyright (C) 1988, 1989, 1991, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1988, 1989, 1991, 1998, 1999 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -26,14 +26,12 @@
 #include "gdbcore.h"
 #include "floatformat.h"
 
-void i387_to_double PARAMS ((char *, char *));
-void double_to_i387 PARAMS ((char *, char *));
 
-static void print_387_control_bits PARAMS ((unsigned int control));
-static void print_387_status_bits  PARAMS ((unsigned int status));
+/* FIXME: Eliminate the next two functions when we have the time to
+   change all the callers.  */
 
-/* FIXME:  Eliminate these routines when we have the time to change all
-   the callers.  */
+void i387_to_double PARAMS ((char *from, char *to));
+void double_to_i387 PARAMS ((char *from, char *to));
 
 void
 i387_to_double (from, to)
@@ -51,6 +49,16 @@ double_to_i387 (from, to)
   floatformat_from_double (&floatformat_i387_ext, (double *) from, to);
 }
 
+
+/* FIXME: The functions on this page are used by the old `info float'
+   implementations that a few of the i386 targets provide.  These
+   functions should be removed if all of these have been converted to
+   use the generic implementation based on the new register file
+   layout.  */
+
+static void print_387_control_bits PARAMS ((unsigned int control));
+static void print_387_status_bits PARAMS ((unsigned int status));
+
 static void
 print_387_control_bits (control)
      unsigned int control;
@@ -149,6 +157,243 @@ print_387_status_word (status)
   puts_unfiltered ("\n");
 }
 
+
+/* Implement the `info float' layout based on the register definitions
+   in `tm-i386.h'.  */
+
+/* Print the floating point number specified by RAW.  */
+static void
+print_i387_value (char *raw)
+{
+  DOUBLEST value;
+  
+  floatformat_to_doublest (&floatformat_i387_ext, raw, &value);
+
+  /* We try to print 19 digits.  The last digit may or may not contain
+     garbage, but we'd better print one too many.  We need enough room
+     to print the value, 1 position for the sign, 1 for the decimal
+     point, 19 for the digits and 6 for the exponent adds up to 27.  */
+#ifdef PRINTF_HAS_LONG_DOUBLE
+  printf_filtered (" %-+27.19Lg", (long double) value);
+#else
+  printf_filtered (" %-+27.19g", (double) value);
+#endif
+}
+
+/* Print the classification for the register contents RAW.  */
+static void
+print_i387_ext (unsigned char *raw)
+{
+  int sign;
+  int integer;
+  unsigned int exponent;
+  unsigned long fraction[2];
+
+  sign = raw[9] & 0x80;
+  integer = raw[7] & 0x80;
+  exponent = (((raw[9] & 0x7f) << 8) | raw[8]);
+  fraction[0] = ((raw[3] << 24) | (raw[2] << 16) | (raw[1] << 8) | raw[0]);
+  fraction[1] = (((raw[7] & 0x7f) << 24) | (raw[6] << 16)
+		 | (raw[5] << 8) | raw[4]);
+
+  if (exponent == 0x7fff && integer)
+    {
+      if (fraction[0] == 0x00000000 && fraction[1] == 0x00000000)
+	/* Infinity.  */
+	printf_filtered (" %cInf", (sign ? '-' : '+'));
+      else if (sign && fraction[0] == 0x00000000 && fraction[1] == 0x40000000)
+	/* Real Indefinite (QNaN).  */
+	puts_unfiltered (" Real Indefinite (QNaN)");
+      else if (fraction[1] & 0x40000000)
+	/* QNaN.  */
+	puts_filtered (" QNaN");
+      else
+	/* SNaN.  */
+	puts_filtered (" SNaN");
+    }
+  else if (exponent < 0x7fff && exponent > 0x0000 && integer)
+    /* Normal.  */
+    print_i387_value (raw);
+  else if (exponent == 0x0000)
+    {
+      /* Denormal or zero.  */
+      print_i387_value (raw);
+      
+      if (integer)
+	/* Pseudo-denormal.  */
+	puts_filtered (" Pseudo-denormal");
+      else if (fraction[0] || fraction[1])
+	/* Denormal.  */
+	puts_filtered (" Denormal");
+    }
+  else
+    /* Unsupported.  */
+    puts_filtered (" Unsupported");
+}
+
+/* Print the status word STATUS.  */
+static void
+print_i387_status_word (unsigned int status)
+{
+  printf_filtered ("Status Word:         %s",
+		   local_hex_string_custom (status, "04"));
+  puts_filtered ("  ");
+  printf_filtered (" %s", (status & 0x0001) ? "IE" : "  ");
+  printf_filtered (" %s", (status & 0x0002) ? "DE" : "  ");
+  printf_filtered (" %s", (status & 0x0004) ? "ZE" : "  ");
+  printf_filtered (" %s", (status & 0x0008) ? "OE" : "  ");
+  printf_filtered (" %s", (status & 0x0010) ? "UE" : "  ");
+  printf_filtered (" %s", (status & 0x0020) ? "PE" : "  ");
+  puts_filtered ("  ");
+  printf_filtered (" %s", (status & 0x0080) ? "ES" : "  ");
+  puts_filtered ("  ");
+  printf_filtered (" %s", (status & 0x0080) ? "SF" : "  ");
+  puts_filtered ("  ");
+  printf_filtered (" %s", (status & 0x0100) ? "C0" : "  ");
+  printf_filtered (" %s", (status & 0x0200) ? "C1" : "  ");
+  printf_filtered (" %s", (status & 0x0400) ? "C2" : "  ");
+  printf_filtered (" %s", (status & 0x4000) ? "C3" : "  ");
+
+  puts_filtered ("\n");
+
+  printf_filtered ("                       TOP: %d\n", ((status >> 11) & 7));
+}
+
+/* Print the control word CONTROL.  */
+static void
+print_i387_control_word (unsigned int control)
+{
+  printf_filtered ("Control Word:        %s",
+		   local_hex_string_custom (control, "04"));
+  puts_filtered ("  ");
+  printf_filtered (" %s", (control & 0x0001) ? "IM" : "  ");
+  printf_filtered (" %s", (control & 0x0002) ? "DM" : "  ");
+  printf_filtered (" %s", (control & 0x0004) ? "ZM" : "  ");
+  printf_filtered (" %s", (control & 0x0008) ? "OM" : "  ");
+  printf_filtered (" %s", (control & 0x0010) ? "UM" : "  ");
+  printf_filtered (" %s", (control & 0x0020) ? "PM" : "  ");
+
+  puts_filtered ("\n");
+
+  puts_filtered ("                       PC: ");
+  switch ((control >> 8) & 3)
+    {
+    case 0:
+      puts_filtered ("Single Precision (24-bits)\n");
+      break;
+    case 1:
+      puts_filtered ("Reserved\n");
+      break;
+    case 2:
+      puts_filtered ("Double Precision (53-bits)\n");
+      break;
+    case 3:
+      puts_filtered ("Extended Precision (64-bits)\n");
+      break;
+    }
+      
+  puts_filtered ("                       RC: ");
+  switch ((control >> 10) & 3)
+    {
+    case 0:
+      puts_filtered ("Round to nearest\n");
+      break;
+    case 1:
+      puts_filtered ("Round down\n");
+      break;
+    case 2:
+      puts_filtered ("Round up\n");
+      break;
+    case 3:
+      puts_filtered ("Round toward zero\n");
+      break;
+    }
+}
+
+/* Print out the i387 floating poin state.  */
+void
+i387_float_info (void)
+{
+  unsigned int fctrl;
+  unsigned int fstat;
+  unsigned int ftag;
+  unsigned int fiseg;
+  unsigned int fioff;
+  unsigned int foseg;
+  unsigned int fooff;
+  unsigned int fop;
+  int fpreg;
+  int top;
+
+  fctrl = read_register (FCTRL_REGNUM);
+  fstat = read_register (FSTAT_REGNUM);
+  ftag  = read_register (FTAG_REGNUM);
+  fiseg = read_register (FCS_REGNUM);
+  fioff = read_register (FCOFF_REGNUM);
+  foseg = read_register (FDS_REGNUM);
+  fooff = read_register (FDOFF_REGNUM);
+  fop   = read_register (FOP_REGNUM);
+  
+  top = ((fstat >> 11) & 7);
+
+  for (fpreg = 7; fpreg >= 0; fpreg--)
+    {
+      unsigned char raw[FPU_REG_RAW_SIZE];
+      int tag = (ftag >> (fpreg * 2)) & 3;
+      int i;
+
+      printf_filtered ("%sR%d: ", fpreg == top ? "=>" : "  ", fpreg);
+
+      switch (tag)
+	{
+	case 0:
+	  puts_filtered ("Valid   ");
+	  break;
+	case 1:
+	  puts_filtered ("Zero    ");
+	  break;
+	case 2:
+	  puts_filtered ("Special ");
+	  break;
+	case 3:
+	  puts_filtered ("Empty   ");
+	  break;
+	}
+
+      read_register_gen ((fpreg + 8 - top) % 8 + FP0_REGNUM, raw);
+
+      puts_filtered ("0x");
+      for (i = 9; i >= 0; i--)
+	printf_filtered ("%02x", raw[i]);
+
+      if (tag != 3)
+	print_i387_ext (raw);
+
+      puts_filtered ("\n");
+    }
+
+  puts_filtered ("\n");
+
+  print_i387_status_word (fstat);
+  print_i387_control_word (fctrl);
+  printf_filtered ("Tag Word:            %s\n",
+		   local_hex_string_custom (ftag, "04"));
+  printf_filtered ("Instruction Pointer: %s:",
+		   local_hex_string_custom (fiseg, "02"));
+  printf_filtered ("%s\n", local_hex_string_custom (fioff, "08"));
+  printf_filtered ("Operand Pointer:     %s:",
+		   local_hex_string_custom (foseg, "02"));
+  printf_filtered ("%s\n", local_hex_string_custom (fooff, "08"));
+  printf_filtered ("Opcode:              %s\n",
+		   local_hex_string_custom (fop ? (fop | 0xd800) : 0, "04"));
+}
+
+
+/* FIXME: The functions on this page are used to provide `long double'
+   support for Linux.  However, the approach does not seem to be the
+   right one, and we are planning to solve this in a way that should
+   work for all i386 targets.  These functions will disappear in the
+   near future, so please don't use them.  */
 #ifdef LD_I387
 int
 i387_extract_floating (PTR addr, int len, DOUBLEST *dretptr)
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 0bd354b7672..30308c89e20 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,11 @@
+1999-12-06  Jim Blandy  <jimb@cygnus.com>
+
+	* gdb.base/default.exp: Expect the new 'info float' command on
+	all i386 platforms.
+
+	* gdb.threads/linux-dp.exp: Expand our ability to recognize
+	LinuxThreads libraries that don't support debugging.
+
 Sat Dec  4 15:21:18 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 
 	* gdb.base/remote.c: Fill the buffer with truely random data.
diff --git a/gdb/testsuite/gdb.base/default.exp b/gdb/testsuite/gdb.base/default.exp
index f73a6d70431..6f109fe9072 100644
--- a/gdb/testsuite/gdb.base/default.exp
+++ b/gdb/testsuite/gdb.base/default.exp
@@ -304,8 +304,8 @@ if [istarget "arm-*-*"] then {
     gdb_test "info float" "Software FPU type.*mask:.*flags:.*" "info float"
 } elseif [istarget "strongarm-*-*"] then {
     gdb_test "info float" "Software FPU type.*mask:.*flags:.*" "info float"
-} elseif [istarget "i\[3456\]86-*-linux-gnu"] then {
-    gdb_test "info float" "No registers."
+} elseif [istarget "i\[3456\]86-*-*"] then {
+    gdb_test "info float" "R7:.*Status Word:.*Opcode:.*" "info float"
 } else {
     gdb_test "info float" "No floating point info available for this processor." "info float"
 }