2002-09-25 Andrew Cagney <cagney@redhat.com>

	* frame.c: Include "gdb_string.h" and "builtin-regs.h".
	(frame_map_regnum_to_name): New function.
	(frame_map_name_to_regnum): New function.
	* frame.h (frame_map_name_to_regnum): Declare.
	(frame_map_regnum_to_name): Declare.
	* builtin-regs.c (builtin_reg_map_regnum_to_name): New function.
	* builtin-regs.h (builtin_reg_map_regnum_to_name): Declare.
	* parse.c: Do not include "builtin-regs.h".
	(target_map_name_to_register): Delete function.
	(write_dollar_variable): Use frame_map_name_to_regnum.
	* parser-defs.h (target_map_name_to_register): Delete declaration.
	* expprint.c: Include "frame.h".
	(print_subexp): Use frame_map_regnum_to_name.
	* eval.c (evaluate_subexp_standard): Use frame_map_regnum_to_name.
	* infcmd.c (registers_info): Use frame_map_name_to_regnum.

2002-09-25  Andrew Cagney  <cagney@redhat.com>

	* gdb.base/pc-fp.exp, gdb.base/pc-fp.c: New test.

1 files changed, 94 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.base/pc-fp.exp b/gdb/testsuite/gdb.base/pc-fp.exp
new file mode 100644
index 00000000000..f94e3314388
--- /dev/null
+++ b/gdb/testsuite/gdb.base/pc-fp.exp
@@ -0,0 +1,94 @@
+#   Copyright 2002 Free Software Foundation, Inc.
+
+# 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.  
+
+# Please email any bugs, comments, and/or additions to this file to:
+# bug-gdb@prep.ai.mit.edu
+
+# The doco makes reference to built-in registers -- $pc and $fp.  If
+# the ISA contains registers by that name then they should be
+# displayed.  If the ISA contains registers identified as being
+# equivalent, but have different names, then GDB will provide these as
+# aliases.  If the ISA doesn't provide any equivalent registers, then
+# GDB will provide registers that map onto the frame's PC and FP.
+
+if $tracelevel then {
+    strace $tracelevel
+}
+
+#
+# test running programs
+#
+set prms_id 0
+set bug_id 0
+
+set testfile "pc-fp"
+set srcfile ${testfile}.c
+set binfile ${objdir}/${subdir}/${testfile}
+
+if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-w}] != "" } {
+    gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
+}
+
+if [get_compiler_info ${binfile}] {
+    return -1
+}
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+if ![runto_main] then {
+    perror "couldn't run to breakpoint"
+    continue
+}
+
+proc get_valueofx { fmt exp default } {
+    global gdb_prompt
+    send_gdb "print${fmt} ${exp}\n"
+    gdb_expect {
+	-re "\\$\[0-9\]* = (0x\[0-9a-zA-Z\]+).*$gdb_prompt $" {
+	    set val $expect_out(1,string)
+	    pass "get value of ${exp} ($val)"
+	}
+	timeout {
+	    set size ${default}
+	    fail "get value of ${exp} (timeout)"
+	}
+    }
+    return ${val}
+}
+
+# Get the value of PC and FP
+
+set valueof_pc [get_valueofx "/x" "\$pc" "0"]
+set valueof_fp [get_valueofx "/x" "\$fp" "0"]
+
+# Check that the sequence $REGNAME -> REGNUM -> $REGNAME works.  Use
+# display since that encodes and then decodes the expression parameter
+# (and hence uses the mechanisms we're trying to test).
+
+gdb_test "display/i \$pc" "1: x/i +\\\$pc +${valueof_pc}.*"
+gdb_test "display/w \$fp" "2: x/xw +\\\$fp +${valueof_fp}.*"
+
+# FIXME: cagney/2002-09-04: Should also check that ``info registers
+# $pc'' et.al.'' come back with the same value as the above displays
+# and a print --- assuming that is that people agree to such behavour.
+# Need to re-write default_print_registers_info() for it to work (and
+# such a rewrite is on the reggroups branch).
+
+# gdb_test "info registers \$pc" "${valueof_pc}"
+# gdb_test "info registers \$fp" "${valueof_fp}"