gdb/testsuite/gdb.base/remote.exp

   1 # Copyright 1999-2022 Free Software Foundation, Inc.
   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 # Test only on boards that actually use the remote protocol.
  17 if {[target_info gdb_protocol] != "remote"
  18     && [target_info gdb_protocol] != "extended-remote"} {
  19     return
  20 }
  21
  22 standard_testfile .c
  23
  24 set result [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}]
  25 if {$result != "" } then {
  26     untested "failed to compile"
  27     return -1
  28 }
  29
  30 gdb_start
  31
  32 # Make sure we're disconnected, in case we're testing with an
  33 # extended-remote board, therefore already connected.
  34 gdb_test "disconnect" ".*"
  35
  36 #
  37 # Part ONE: Check the down load commands
  38 #
  39
  40 gdb_test "show remote memory-write-packet-size" \
  41         "The memory-write-packet-size is 0 \\(default\\). The actual limit will be further reduced dependent on the target\." \
  42         "write-packet default"
  43
  44 gdb_test "set remote memory-write-packet-size" \
  45         "Argument required .integer, `fixed' or `limited'.\." \
  46         "set write-packet - NULL"
  47
  48 gdb_test_no_output "set remote memory-write-packet-size 20"
  49 gdb_test "show remote memory-write-packet-size" \
  50         "The memory-write-packet-size is 20. The actual limit will be further reduced dependent on the target\." \
  51         "set write-packet - small"
  52
  53 gdb_test_no_output "set remote memory-write-packet-size 1"
  54 gdb_test "show remote memory-write-packet-size" \
  55         "The memory-write-packet-size is 1. The actual limit will be further reduced dependent on the target\." \
  56         "set write-packet - very-small"
  57
  58 gdb_test_no_output "set remote memory-write-packet-size 0"
  59 gdb_test "show remote memory-write-packet-size" \
  60         "The memory-write-packet-size is 0 \\(default\\). The actual limit will be further reduced dependent on the target\." \
  61         "write-packet default again"
  62
  63 set test "set remote memory-write-packet-size fixed"
  64 gdb_test_multiple $test $test {
  65     -re "Change the packet size. .y or n. " {
  66         gdb_test_multiple "y" $test {
  67             -re "$gdb_prompt $" {
  68                 pass $test
  69             }
  70         }
  71     }
  72 }
  73 gdb_test "show remote memory-write-packet-size" \
  74         "The memory-write-packet-size is 0 \\(default\\). Packets are fixed at 16384 bytes\." \
  75         "write-packet default fixed"
  76
  77 gdb_test_no_output "set remote memory-write-packet-size limit"
  78 gdb_test "show remote memory-write-packet-size" \
  79         "The memory-write-packet-size is 0 \\(default\\). The actual limit will be further reduced dependent on the target\." \
  80         "write-packet default limit again"
  81
  82 #
  83 # Part TWO: Check the download behavior.
  84 #
  85
  86 proc gdb_load_timed {executable class writesize} {
  87     global test gdb_prompt
  88     set test "timed download `[file tail $executable]' - $class, $writesize"
  89
  90     if {$writesize != ""} then {
  91         gdb_test_no_output "set remote memory-write-packet-size $writesize" \
  92             "$test - set packet size"
  93
  94         send_gdb "set remote memory-write-packet-size $class\n"
  95         gdb_expect 5 {
  96             -re ".*Change the packet size.*$" {
  97                 send_gdb "y\n"
  98                 gdb_expect 5 {
  99                     -re ".*$gdb_prompt $" {
 100                         pass "$test - set write size class"
 101                     }
 102                     timeout {
 103                         fail "$test - set write size class"
 104                         return
 105                     }
 106                 }
 107             }
 108             -re ".*$gdb_prompt $" { }
 109             timeout {
 110                 fail "$test - set write size class"
 111                 return
 112             }
 113         }
 114     }
 115
 116     # Do not try to load using fixed sizes; we may overflow the remote target.
 117     if { $class == "fixed" } {
 118         return
 119     }
 120
 121     set load_begin_time [clock clicks]
 122     set result [gdb_load $executable]
 123     set load_end_time [clock clicks]
 124     if { $result != 0 } then {
 125         fail "$test - loading executable"
 126         return
 127     }
 128     verbose "$test - time [expr ($load_end_time - $load_begin_time) / 1000] ms"
 129     pass $test
 130 }
 131
 132 clean_restart $binfile
 133
 134 # These download tests won't actually download anything on !is_remote
 135 # target boards, but we run them anyway because it's simpler, and
 136 # harmless.
 137
 138 # Typically about 400-1 bytes can be downloaded
 139 gdb_load_timed $binfile "limit" 398
 140 gdb_load_timed $binfile "limit" 400
 141
 142 # Absolute max is 16384
 143 gdb_load_timed $binfile "fixed" 0
 144 gdb_load_timed $binfile "fixed" 16385
 145
 146 # fall back to the default
 147 gdb_load_timed $binfile "limit" 0
 148
 149 # Get size of data uploaded
 150
 151 #
 152 # Query GDB for the size of various types
 153 #
 154
 155 # Get the size of random_data table (defaults to 48K).
 156 set sizeof_random_data [get_sizeof "random_data" 48*1024]
 157
 158 #
 159 # Part THREE: Check the upload behavour
 160 #
 161 if ![runto_main] then {
 162     fail "cannot run to main"
 163     return
 164 }
 165
 166 # Carefully check memory around each of the most common packet edge
 167 # conditions
 168
 169 gdb_test "x/8ub random_data" \
 170         "<random_data>:\[ \t\]+60\[ \t\]+74\[ \t\]+216\[ \t\]+38\[ \t\]+149\[ \t\]+49\[ \t\]+207\[ \t\]+44"
 171
 172 gdb_test "x/8ub random_data + 400 - 4" \
 173         "<random_data\\+396>:\[ \t\]+185\[ \t\]+255\[ \t\]+50\[ \t\]+140\[ \t\]+237\[ \t\]+172\[ \t\]+143\[ \t\]+93"
 174
 175 if {$sizeof_random_data > 16380 } then {
 176     gdb_test "x/8ub random_data + 16384 - 4" \
 177         "<random_data\\+16380>:\[ \t\]+178\[ \t\]+180\[ \t\]+135\[ \t\]+93\[ \t\]+70\[ \t\]+62\[ \t\]+205\[ \t\]+76"
 178 }
 179
 180 # Read a chunk just larger than the packet size (reduce the packet
 181 # size to make life easier)
 182 gdb_test_no_output "set remote memory-read-packet-size 16"
 183
 184 gdb_test "show remote memory-read-packet-size" \
 185         "The memory-read-packet-size is 16. Packets are limited to 20 bytes."
 186 gdb_test "x/17ub random_data" \
 187         "<random_data>:\[ \t\]+60\[ \t\]+74\[ \t\]+216\[ \t\]+38\[ \t\]+149\[ \t\]+49\[ \t\]+207\[ \t\]+44.*<random_data\\+8>:\[ \t\]+124\[ \t\]+38\[ \t\]+93\[ \t\]+125\[ \t\]+232\[ \t\]+67\[ \t\]+228\[ \t\]+56.*<random_data\\+16>:\[ \t\]+161"
 188
 189 # Regression test for gdb/15289.  Make sure -1 is accepted and handled
 190 # as "unlimited".
 191 gdb_test_no_output "set remote hardware-watchpoint-limit -1"
 192 gdb_test_no_output "set remote hardware-breakpoint-limit -1"
 193
 194 # This is just being thorough.  Assume (at least) a 32-bit host int,
 195 # and make sure 32-bit INT_MAX is accepted by a zinteger command.
 196 gdb_test_no_output "set remote hardware-watchpoint-limit 2147483647"
 197 gdb_test_no_output "set remote hardware-breakpoint-limit 2147483647"
 198
 199 gdb_exit