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9b254dd1 | 1 | # Copyright 2002, 2004, 2007, 2008 Free Software Foundation, Inc. |
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2 | |
3 | # This program is free software; you can redistribute it and/or modify | |
4 | # it under the terms of the GNU General Public License as published by | |
e22f8b7c | 5 | # the Free Software Foundation; either version 3 of the License, or |
e36180d7 | 6 | # (at your option) any later version. |
e22f8b7c | 7 | # |
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8 | # This program is distributed in the hope that it will be useful, |
9 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | # GNU General Public License for more details. | |
e22f8b7c | 12 | # |
e36180d7 | 13 | # You should have received a copy of the GNU General Public License |
e22f8b7c | 14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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15 | |
16 | # Please email any bugs, comments, and/or additions to this file to: | |
17 | # bug-gdb@prep.ai.mit.edu | |
18 | ||
19 | # The doco makes reference to built-in registers -- $pc and $fp. If | |
20 | # the ISA contains registers by that name then they should be | |
21 | # displayed. If the ISA contains registers identified as being | |
22 | # equivalent, but have different names, then GDB will provide these as | |
23 | # aliases. If the ISA doesn't provide any equivalent registers, then | |
24 | # GDB will provide registers that map onto the frame's PC and FP. | |
25 | ||
26 | if $tracelevel then { | |
27 | strace $tracelevel | |
28 | } | |
29 | ||
30 | # | |
31 | # test running programs | |
32 | # | |
33 | set prms_id 0 | |
34 | set bug_id 0 | |
35 | ||
36 | set testfile "pc-fp" | |
37 | set srcfile ${testfile}.c | |
38 | set binfile ${objdir}/${subdir}/${testfile} | |
39 | ||
fc91c6c2 | 40 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } { |
b60f0898 JB |
41 | untested pc-fp.exp |
42 | return -1 | |
e36180d7 AC |
43 | } |
44 | ||
45 | if [get_compiler_info ${binfile}] { | |
46 | return -1 | |
47 | } | |
48 | ||
49 | gdb_exit | |
50 | gdb_start | |
51 | gdb_reinitialize_dir $srcdir/$subdir | |
52 | gdb_load ${binfile} | |
53 | ||
54 | if ![runto_main] then { | |
55 | perror "couldn't run to breakpoint" | |
56 | continue | |
57 | } | |
58 | ||
59 | proc get_valueofx { fmt exp default } { | |
60 | global gdb_prompt | |
61 | send_gdb "print${fmt} ${exp}\n" | |
62 | gdb_expect { | |
63 | -re "\\$\[0-9\]* = (0x\[0-9a-zA-Z\]+).*$gdb_prompt $" { | |
64 | set val $expect_out(1,string) | |
a8b7528f | 65 | pass "get value of ${exp}" |
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66 | } |
67 | timeout { | |
4bebc3aa | 68 | set val ${default} |
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69 | fail "get value of ${exp} (timeout)" |
70 | } | |
71 | } | |
72 | return ${val} | |
73 | } | |
74 | ||
75 | # Get the value of PC and FP | |
76 | ||
77 | set valueof_pc [get_valueofx "/x" "\$pc" "0"] | |
78 | set valueof_fp [get_valueofx "/x" "\$fp" "0"] | |
79 | ||
80 | # Check that the sequence $REGNAME -> REGNUM -> $REGNAME works. Use | |
81 | # display since that encodes and then decodes the expression parameter | |
82 | # (and hence uses the mechanisms we're trying to test). | |
83 | ||
6a2eb474 | 84 | gdb_test "display/i \$pc" "1: x/i +\\\$pc( +|\r\n)${valueof_pc}.*" |
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85 | gdb_test "display/w \$fp" "2: x/xw +\\\$fp +${valueof_fp}.*" |
86 | ||
87 | # FIXME: cagney/2002-09-04: Should also check that ``info registers | |
88 | # $pc'' et.al.'' come back with the same value as the above displays | |
89 | # and a print --- assuming that is that people agree to such behavour. | |
90 | # Need to re-write default_print_registers_info() for it to work (and | |
91 | # such a rewrite is on the reggroups branch). | |
92 | ||
93 | # gdb_test "info registers \$pc" "${valueof_pc}" | |
94 | # gdb_test "info registers \$fp" "${valueof_fp}" |