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88b9d363 | 1 | # Copyright 2020-2022 Free Software Foundation, Inc. |
767a879e AB |
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 | |
5 | # the Free Software Foundation; either version 3 of the License, or | |
6 | # (at your option) any later version. | |
7 | # | |
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. | |
12 | # | |
13 | # You should have received a copy of the GNU General Public License | |
14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | ||
16 | # Various tests to check which register names are available after | |
ed69cbc8 AB |
17 | # loading a new target description file, and which registers show up |
18 | # in the output of the 'info registers' command. | |
767a879e AB |
19 | |
20 | if {![istarget "riscv*-*-*"]} { | |
21 | verbose "Skipping ${gdb_test_file_name}." | |
22 | return | |
23 | } | |
24 | ||
25 | standard_testfile | |
26 | ||
27 | if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} \ | |
28 | {debug quiet}] } { | |
29 | unsupported "failed to compile" | |
30 | return -1 | |
31 | } | |
32 | ||
33 | if { ![runto_main] } { | |
34 | untested "failed to runto main" | |
35 | return -1 | |
36 | } | |
37 | ||
38 | # First, figure out if we are 32-bit or 64-bit. | |
39 | set xlen [get_valueof "/d" "sizeof (\$a0)" 0] | |
40 | set flen [get_valueof "/d" "sizeof (\$fa0)" 0] | |
41 | ||
42 | gdb_assert { $xlen != 0 && $flen != 0 } "read xlen and flen" | |
43 | ||
44 | # We only handle 32-bit or 64-bit x-registers. | |
45 | if { $xlen != 4 && $xlen != 8 } { | |
46 | unsupported "unknown x-register size" | |
47 | return -1 | |
48 | } | |
49 | ||
50 | # If FLEN is 1 then the target doesn't have floating point support | |
51 | # (the register $fa0 was not recognised). Otherwise, we can only | |
52 | # proceed if FLEN equals XLEN, otherwise we'd need more test XML | |
53 | # files. | |
54 | if { $flen != 1 && $flen != $xlen } { | |
55 | unsupport "unknown xlen/flen combination" | |
56 | return -1 | |
57 | } | |
58 | ||
59 | if { $xlen == 4 } { | |
60 | set xml_tdesc "riscv-tdesc-regs-32.xml" | |
61 | } else { | |
62 | set xml_tdesc "riscv-tdesc-regs-64.xml" | |
63 | } | |
64 | set xml_tdesc "${srcdir}/${subdir}/${xml_tdesc}" | |
65 | ||
66 | # Maybe copy the target over if we're remote testing. | |
67 | if {[is_remote host]} { | |
68 | set remote_file [remote_download host $xml_tdesc] | |
69 | } else { | |
70 | set remote_file $xml_tdesc | |
71 | } | |
72 | ||
73 | gdb_test_no_output "set tdesc filename $remote_file" \ | |
74 | "load the new target description" | |
75 | ||
76 | # Check that an alias for an unknown CSR will give a suitable error. | |
77 | gdb_test "info registers \$csr0" "Invalid register `csr0'" | |
78 | ||
e4502042 AB |
79 | # Return the number of times REGISTER should appear in GROUP, this |
80 | # will either be 0 or 1. | |
81 | proc get_expected_result { register group } { | |
82 | ||
83 | # Everything should appear once in the 'all' group. | |
84 | if { $group == "all" || $group == "x_all" } { | |
85 | return 1 | |
86 | } | |
87 | ||
88 | if { $group == "save" || $group == "restore" } { | |
89 | # Everything is in the save/restore groups except these two. | |
90 | if { $register == "unknown_csr" || $register == "dscratch" } { | |
91 | return 0 | |
92 | } | |
93 | return 1 | |
94 | } | |
95 | ||
96 | if { $group == "system" || $group == "csr" } { | |
97 | # All the registers we check should be in these groups. | |
98 | return 1 | |
99 | } | |
100 | ||
101 | return 0 | |
102 | } | |
103 | ||
104 | foreach rgroup {x_all all save restore general system csr} { | |
ed69cbc8 AB |
105 | # Now use 'info registers all' to see how many times the floating |
106 | # point status registers show up in the output. | |
107 | array set reg_counts {} | |
6d74da72 AB |
108 | if {$rgroup == "x_all"} { |
109 | set test "info all-registers" | |
110 | } else { | |
111 | set test "info registers $rgroup" | |
112 | } | |
ed69cbc8 AB |
113 | gdb_test_multiple $test $test { |
114 | -re ".*info registers all\r\n" { | |
115 | verbose -log "Skip to first register" | |
116 | exp_continue | |
117 | } | |
118 | -re "^(\[^ \t\]+)\[ \t\]+\[^\r\n\]+\r\n" { | |
119 | set reg $expect_out(1,string) | |
120 | incr reg_counts($reg) | |
121 | exp_continue | |
122 | } | |
123 | -re "^$gdb_prompt $" { | |
124 | # Done. | |
125 | } | |
126 | } | |
127 | ||
2e52d038 | 128 | foreach reg {fflags frm fcsr unknown_csr dscratch} { |
ed69cbc8 AB |
129 | if { [info exists reg_counts($reg) ] } { |
130 | set count $reg_counts($reg) | |
131 | } else { | |
132 | set count 0 | |
133 | } | |
e4502042 AB |
134 | |
135 | set expected_count [ get_expected_result $reg $rgroup ] | |
136 | gdb_assert {$count == $expected_count} \ | |
137 | "register $reg seen in reggroup $rgroup $expected_count times" | |
ed69cbc8 AB |
138 | } |
139 | array unset reg_counts | |
140 | } |