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# Copyright 1999-2021 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 3 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, see <http://www.gnu.org/licenses/>.
# Test only on boards that actually use the remote protocol.
if {[target_info gdb_protocol] != "remote"
&& [target_info gdb_protocol] != "extended-remote"} {
return
}
standard_testfile .c
set result [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}]
if {$result != "" } then {
untested "failed to compile"
return -1
}
gdb_start
# Make sure we're disconnected, in case we're testing with an
# extended-remote board, therefore already connected.
gdb_test "disconnect" ".*"
#
# Part ONE: Check the down load commands
#
gdb_test "show remote memory-write-packet-size" \
"The memory-write-packet-size is 0 \\(default\\). The actual limit will be further reduced dependent on the target\." \
"write-packet default"
gdb_test "set remote memory-write-packet-size" \
"Argument required .integer, `fixed' or `limited'.\." \
"set write-packet - NULL"
gdb_test_no_output "set remote memory-write-packet-size 20"
gdb_test "show remote memory-write-packet-size" \
"The memory-write-packet-size is 20. The actual limit will be further reduced dependent on the target\." \
"set write-packet - small"
gdb_test_no_output "set remote memory-write-packet-size 1"
gdb_test "show remote memory-write-packet-size" \
"The memory-write-packet-size is 1. The actual limit will be further reduced dependent on the target\." \
"set write-packet - very-small"
gdb_test_no_output "set remote memory-write-packet-size 0"
gdb_test "show remote memory-write-packet-size" \
"The memory-write-packet-size is 0 \\(default\\). The actual limit will be further reduced dependent on the target\." \
"write-packet default again"
set test "set remote memory-write-packet-size fixed"
gdb_test_multiple $test $test {
-re "Change the packet size. .y or n. " {
gdb_test_multiple "y" $test {
-re "$gdb_prompt $" {
pass $test
}
}
}
}
gdb_test "show remote memory-write-packet-size" \
"The memory-write-packet-size is 0 \\(default\\). Packets are fixed at 16384 bytes\." \
"write-packet default fixed"
gdb_test_no_output "set remote memory-write-packet-size limit"
gdb_test "show remote memory-write-packet-size" \
"The memory-write-packet-size is 0 \\(default\\). The actual limit will be further reduced dependent on the target\." \
"write-packet default limit again"
#
# Part TWO: Check the download behavior.
#
proc gdb_load_timed {executable class writesize} {
global test gdb_prompt
set test "timed download `[file tail $executable]' - $class, $writesize"
if {$writesize != ""} then {
gdb_test_no_output "set remote memory-write-packet-size $writesize" \
"$test - set packet size"
send_gdb "set remote memory-write-packet-size $class\n"
gdb_expect 5 {
-re ".*Change the packet size.*$" {
send_gdb "y\n"
gdb_expect 5 {
-re ".*$gdb_prompt $" {
pass "$test - set write size class"
}
timeout {
fail "$test - set write size class"
return
}
}
}
-re ".*$gdb_prompt $" { }
timeout {
fail "$test - set write size class"
return
}
}
}
# Do not try to load using fixed sizes; we may overflow the remote target.
if { $class == "fixed" } {
return
}
set load_begin_time [clock clicks]
set result [gdb_load $executable]
set load_end_time [clock clicks]
if { $result != 0 } then {
fail "$test - loading executable"
return
}
verbose "$test - time [expr ($load_end_time - $load_begin_time) / 1000] ms"
pass $test
}
clean_restart $binfile
# These download tests won't actually download anything on !is_remote
# target boards, but we run them anyway because it's simpler, and
# harmless.
# Typically about 400-1 bytes can be downloaded
gdb_load_timed $binfile "limit" 398
gdb_load_timed $binfile "limit" 400
# Absolute max is 16384
gdb_load_timed $binfile "fixed" 0
gdb_load_timed $binfile "fixed" 16385
# fall back to the default
gdb_load_timed $binfile "limit" 0
# Get size of data uploaded
#
# Query GDB for the size of various types
#
# Get the size of random_data table (defaults to 48K).
set sizeof_random_data [get_sizeof "random_data" 48*1024]
#
# Part THREE: Check the upload behavour
#
if ![runto_main] then {
fail "cannot run to main"
return
}
# Carefully check memory around each of the most common packet edge
# conditions
gdb_test "x/8ub random_data" \
"<random_data>:\[ \t\]+60\[ \t\]+74\[ \t\]+216\[ \t\]+38\[ \t\]+149\[ \t\]+49\[ \t\]+207\[ \t\]+44"
gdb_test "x/8ub random_data + 400 - 4" \
"<random_data\\+396>:\[ \t\]+185\[ \t\]+255\[ \t\]+50\[ \t\]+140\[ \t\]+237\[ \t\]+172\[ \t\]+143\[ \t\]+93"
if {$sizeof_random_data > 16380 } then {
gdb_test "x/8ub random_data + 16384 - 4" \
"<random_data\\+16380>:\[ \t\]+178\[ \t\]+180\[ \t\]+135\[ \t\]+93\[ \t\]+70\[ \t\]+62\[ \t\]+205\[ \t\]+76"
}
# Read a chunk just larger than the packet size (reduce the packet
# size to make life easier)
gdb_test_no_output "set remote memory-read-packet-size 16"
gdb_test "show remote memory-read-packet-size" \
"The memory-read-packet-size is 16. Packets are limited to 20 bytes."
gdb_test "x/17ub random_data" \
"<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"
# Regression test for gdb/15289. Make sure -1 is accepted and handled
# as "unlimited".
gdb_test_no_output "set remote hardware-watchpoint-limit -1"
gdb_test_no_output "set remote hardware-breakpoint-limit -1"
# This is just being thorough. Assume (at least) a 32-bit host int,
# and make sure 32-bit INT_MAX is accepted by a zinteger command.
gdb_test_no_output "set remote hardware-watchpoint-limit 2147483647"
gdb_test_no_output "set remote hardware-breakpoint-limit 2147483647"
gdb_exit
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