binutils-gdb/gdb/testsuite/gdb.base/remote.exp

#   Copyright 1999, 2001 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

if $tracelevel then {
    strace $tracelevel
}

set prms_id 0
set bug_id 0


# test only on a remote target board
if {! [is_remote target]} {
    return
}

set testfile "remote"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}

gdb_start

set result [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}]
if {$result != "" } then {
    gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
}


#
# Part ONE: Check the down load commands
#

gdb_test "show download-write-size" \
	"The write size used when downloading a program is 512." \
	"download limit default"

gdb_test "set download-write-size" "Argument required.*"

gdb_test "set download-write-size 0" ""
gdb_test "show download-write-size" \
	"The write size used when downloading a program is unlimited." \
	"set download limit - unlimited"

gdb_test "show remote memory-write-packet-size" \
	"The memory-write-packet-size is 0. Packets are limited to \[0-9\]+ bytes." \
	"write-packet default"

gdb_test "set remote memory-write-packet-size" \
	"Argument required .integer, `fixed' or `limited'.\." \
	"set write-packet - NULL"

gdb_test "set remote memory-write-packet-size 16" ""
gdb_test "show remote memory-write-packet-size" \
	"The memory-write-packet-size is 16. Packets are limited to 16 bytes." \
	"set write-packet - small"

gdb_test "set remote memory-write-packet-size 1" ""
gdb_test "show remote memory-write-packet-size" \
	"The memory-write-packet-size is 1. Packets are limited to 16 bytes." \
	"set write-packet - very-small"

#
# Part TWO: Check the download behavour
#

proc gdb_load_timed {executable downloadsize class writesize} {
    global test gdb_prompt
    set test "timed download `[file tail $executable]' - $downloadsize, $class, $writesize"

    if {$writesize != ""} then {
	gdb_test "set remote memory-write-packet-size $writesize" \
		"" "$test - set packet size"
    }

    if {$downloadsize != ""} then {
	gdb_test "set download-write-size $downloadsize" \
		"" "$test - set download size"
    }

    if {$downloadsize != ""} then {
	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
	    }
	}
    }

    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
}

gdb_load_timed $binfile {} "" {}

# Typically about 400-1 bytes can be downloaded
gdb_load_timed $binfile 0 "limit" 398
gdb_load_timed $binfile 0 "limit" 400

# Absolute max is 16384
gdb_load_timed $binfile 0 "fixed" 0
gdb_load_timed $binfile 0 "fixed" 16385

# fall back to the default
gdb_load_timed $binfile 0 "limit" 0

# Get size of data uploaded

#
# Query GDB for the size of various types
#

proc get_sizeof { type default } {
    global gdb_prompt
    send_gdb "print/d sizeof (${type})\n"
    gdb_expect {
	-re "\\$\[0-9\]* = (\[0-9\]*).*$gdb_prompt $" {
	    set size $expect_out(1,string)
	    pass "get sizeof ${type} ($size)"
	}
	timeout {
	    set size ${default}
	    fail "get sizeof ${type} (timeout)"
	}
    }
    return ${size}
}

# 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"
}

# 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 "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 16 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"

gdb_exit