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Diffstat (limited to 'gdb/testsuite/lib/gdb.exp')
| -rw-r--r-- | gdb/testsuite/lib/gdb.exp | 1334 |
1 files changed, 1334 insertions, 0 deletions
diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp new file mode 100644 index 00000000000..c61abb6f592 --- /dev/null +++ b/gdb/testsuite/lib/gdb.exp @@ -0,0 +1,1334 @@ +# Copyright (C) 1992, 1994, 1995, 1997 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 + +# This file was written by Fred Fish. (fnf@cygnus.com) + +# Generic gdb subroutines that should work for any target. If these +# need to be modified for any target, it can be done with a variable +# or by passing arguments. + +load_lib libgloss.exp + +global GDB +global CHILL_LIB +global CHILL_RT0 + +if ![info exists CHILL_LIB] { + set CHILL_LIB [findfile $base_dir/../../gcc/ch/runtime/libchill.a "$base_dir/../../gcc/ch/runtime/libchill.a" [transform -lchill]] +} +verbose "using CHILL_LIB = $CHILL_LIB" 2 +if ![info exists CHILL_RT0] { + set CHILL_RT0 [findfile $base_dir/../../gcc/ch/runtime/chillrt0.o "$base_dir/../../gcc/ch/runtime/chillrt0.o" ""] +} +verbose "using CHILL_RT0 = $CHILL_RT0" 2 + +if [info exists TOOL_EXECUTABLE] { + set GDB $TOOL_EXECUTABLE; +} +if ![info exists GDB] { + if ![is_remote host] { + set GDB [findfile $base_dir/../../gdb/gdb "$base_dir/../../gdb/gdb" [transform gdb]] + } else { + set GDB [transform gdb]; + } +} +verbose "using GDB = $GDB" 2 + +global GDBFLAGS +if ![info exists GDBFLAGS] { + set GDBFLAGS "-nx" +} +verbose "using GDBFLAGS = $GDBFLAGS" 2 + +# The variable prompt is a regexp which matches the gdb prompt. Set it if it +# is not already set. +global gdb_prompt +if ![info exists prompt] then { + set gdb_prompt "\[(\]gdb\[)\]" +} + +# +# gdb_version -- extract and print the version number of GDB +# +proc default_gdb_version {} { + global GDB + global GDBFLAGS + global gdb_prompt + set fileid [open "gdb_cmd" w]; + puts $fileid "q"; + close $fileid; + set cmdfile [remote_download host "gdb_cmd"]; + set output [remote_exec host "$GDB -nw --command $cmdfile"] + remote_file build delete "gdb_cmd"; + remote_file host delete "$cmdfile"; + set tmp [lindex $output 1]; + set version "" + regexp " \[0-9\]\[^ \t\n\r\]+" "$tmp" version + if ![is_remote host] { + clone_output "[which $GDB] version $version $GDBFLAGS\n" + } else { + clone_output "$GDB on remote host version $version $GDBFLAGS\n" + } +} + +proc gdb_version { } { + return [default_gdb_version]; +} + +# +# gdb_unload -- unload a file if one is loaded +# + +proc gdb_unload {} { + global verbose + global GDB + global gdb_prompt + send_gdb "file\n" + gdb_expect 60 { + -re "No executable file now\[^\r\n\]*\[\r\n\]" { exp_continue } + -re "No symbol file now\[^\r\n\]*\[\r\n\]" { exp_continue } + -re "A program is being debugged already..*Kill it.*y or n. $"\ + { send_gdb "y\n" + verbose "\t\tKilling previous program being debugged" + exp_continue + } + -re "Discard symbol table from .*y or n.*$" { + send_gdb "y\n" + exp_continue + } + -re "$gdb_prompt $" {} + timeout { + perror "couldn't unload file in $GDB (timed out)." + return -1 + } + } +} + +# Many of the tests depend on setting breakpoints at various places and +# running until that breakpoint is reached. At times, we want to start +# with a clean-slate with respect to breakpoints, so this utility proc +# lets us do this without duplicating this code everywhere. +# + +proc delete_breakpoints {} { + global gdb_prompt + + send_gdb "delete breakpoints\n" + gdb_expect 30 { + -re "Delete all breakpoints.*y or n.*$" { + send_gdb "y\n"; + exp_continue + } + -re "$gdb_prompt $" { # This happens if there were no breakpoints + } + timeout { perror "Delete all breakpoints in delete_breakpoints (timeout)" ; return } + } + send_gdb "info breakpoints\n" + gdb_expect 30 { + -re "No breakpoints or watchpoints..*$gdb_prompt $" {} + -re "$gdb_prompt $" { perror "breakpoints not deleted" ; return } + -re "Delete all breakpoints.*or n.*$" { + send_gdb "y\n"; + exp_continue + } + timeout { perror "info breakpoints (timeout)" ; return } + } +} + + +# +# Generic run command. +# +# The second pattern below matches up to the first newline *only*. +# Using ``.*$'' could swallow up output that we attempt to match +# elsewhere. +# +proc gdb_run_cmd {args} { + global gdb_prompt + + if [target_info exists gdb_init_command] { + send_gdb "[target_info gdb_init_command]\n"; + gdb_expect 30 { + -re "$gdb_prompt $" { } + default { + perror "gdb_init_command for target failed"; + return; + } + } + } + + if [target_info exists use_gdb_stub] { + if [target_info exists gdb,do_reload_on_run] { + # According to Stu, this will always work. + gdb_load ""; + send_gdb "continue\n"; + gdb_expect 60 { + -re "Continu\[^\r\n\]*\[\r\n\]" {} + default {} + } + return; + } + + if [target_info exists gdb,start_symbol] { + set start [target_info gdb,start_symbol]; + } else { + set start "start"; + } + send_gdb "jump *$start\n" + gdb_expect 30 { + -re "Continuing at \[^\r\n\]*\[\r\n\]" { + if ![target_info exists gdb_stub] { + return; + } + } + -re "No symbol \"start\" in current.*$gdb_prompt $" { + send_gdb "jump *_start\n"; + exp_continue; + } + -re "No symbol \"_start\" in current.*$gdb_prompt $" { + perror "Can't find start symbol to run in gdb_run"; + return; + } + -re "Line.* Jump anyway.*y or n. $" { + send_gdb "y\n" + exp_continue; + } + -re "No symbol.*context.*$gdb_prompt $" {} + -re "The program is not being run.*$gdb_prompt $" { + gdb_load ""; + send_gdb "jump *$start\n"; + exp_continue; + } + timeout { perror "Jump to start() failed (timeout)"; return } + } + if [target_info exists gdb_stub] { + gdb_expect 60 { + -re "$gdb_prompt $" { + send_gdb "continue\n" + } + } + } + return + } + send_gdb "run $args\n" +# This doesn't work quite right yet. + gdb_expect 60 { + -re "The program .* has been started already.*y or n. $" { + send_gdb "y\n" + exp_continue + } + -re "Starting program: \[^\r\n\]*" {} + } +} + +proc gdb_breakpoint { function } { + global gdb_prompt + global decimal + + send_gdb "break $function\n" + # The first two regexps are what we get with -g, the third is without -g. + gdb_expect 30 { + -re "Breakpoint \[0-9\]* at .*: file .*, line $decimal.\r\n$gdb_prompt $" {} + -re "Breakpoint \[0-9\]*: file .*, line $decimal.\r\n$gdb_prompt $" {} + -re "Breakpoint \[0-9\]* at .*$gdb_prompt $" {} + -re "$gdb_prompt $" { fail "setting breakpoint at $function" ; return 0 } + timeout { fail "setting breakpoint at $function (timeout)" ; return 0 } + } + return 1; +} + +# Set breakpoint at function and run gdb until it breaks there. +# Since this is the only breakpoint that will be set, if it stops +# at a breakpoint, we will assume it is the one we want. We can't +# just compare to "function" because it might be a fully qualified, +# single quoted C++ function specifier. + +proc runto { function } { + global gdb_prompt + global decimal + + delete_breakpoints + + if ![gdb_breakpoint $function] { + return 0; + } + + gdb_run_cmd + + # the "at foo.c:36" output we get with -g. + # the "in func" output we get without -g. + gdb_expect 30 { + -re "Break.* at .*:$decimal.*$gdb_prompt $" { + return 1 + } + -re "Breakpoint \[0-9\]*, \[0-9xa-f\]* in .*$gdb_prompt $" { + return 1 + } + -re "$gdb_prompt $" { + fail "running to $function in runto" + return 0 + } + timeout { + fail "running to $function in runto (timeout)" + return 0 + } + } + return 1 +} + +# +# runto_main -- ask gdb to run until we hit a breakpoint at main. +# The case where the target uses stubs has to be handled +# specially--if it uses stubs, assuming we hit +# breakpoint() and just step out of the function. +# +proc runto_main { } { + global gdb_prompt + global decimal + + if ![target_info exists gdb_stub] { + return [runto main] + } + + delete_breakpoints + + gdb_step_for_stub; + + return 1 +} + +# gdb_test COMMAND PATTERN MESSAGE -- send a command to gdb; test the result. +# +# COMMAND is the command to execute, send to GDB with send_gdb. If +# this is the null string no command is sent. +# PATTERN is the pattern to match for a PASS, and must NOT include +# the \r\n sequence immediately before the gdb prompt. +# MESSAGE is an optional message to be printed. If this is +# omitted, then the pass/fail messages use the command string as the +# message. (If this is the empty string, then sometimes we don't +# call pass or fail at all; I don't understand this at all.) +# +# Returns: +# 1 if the test failed, +# 0 if the test passes, +# -1 if there was an internal error. +# +proc gdb_test { args } { + global verbose + global gdb_prompt + global GDB + upvar timeout timeout + + if [llength $args]>2 then { + set message [lindex $args 2] + } else { + set message [lindex $args 0] + } + set command [lindex $args 0] + set pattern [lindex $args 1] + + if [llength $args]==5 { + set question_string [lindex $args 3]; + set response_string [lindex $args 4]; + } else { + set question_string "^FOOBAR$" + } + + if $verbose>2 then { + send_user "Sending \"$command\" to gdb\n" + send_user "Looking to match \"$pattern\"\n" + send_user "Message is \"$message\"\n" + } + + set result -1 + set string "${command}\n"; + if { $command != "" } { + while { "$string" != "" } { + set foo [string first "\n" "$string"]; + set len [string length "$string"]; + if { $foo < [expr $len - 1] } { + set str [string range "$string" 0 $foo]; + if { [send_gdb "$str"] != "" } { + global suppress_flag; + + if { ! $suppress_flag } { + perror "Couldn't send $command to GDB."; + } + fail "$message"; + return $result; + } + gdb_expect 2 { + -re "\[\r\n\]" { } + timeout { } + } + set string [string range "$string" [expr $foo + 1] end]; + } else { + break; + } + } + if { "$string" != "" } { + if { [send_gdb "$string"] != "" } { + global suppress_flag; + + if { ! $suppress_flag } { + perror "Couldn't send $command to GDB."; + } + fail "$message"; + return $result; + } + } + } + + if [info exists timeout] { + set tmt $timeout; + } else { + global timeout; + if [info exists timeout] { + set tmt $timeout; + } else { + set tmt 60; + } + } + gdb_expect $tmt { + -re "\\*\\*\\* DOSEXIT code.*" { + if { $message != "" } { + fail "$message"; + } + gdb_suppress_entire_file "GDB died"; + return -1; + } + -re "Ending remote debugging.*$gdb_prompt$" { + if ![isnative] then { + warning "Can`t communicate to remote target." + } + gdb_exit + gdb_start + set result -1 + } + -re "\[\r\n\]*($pattern)\[\r\n\]+$gdb_prompt $" { + if ![string match "" $message] then { + pass "$message" + } + set result 0 + } + -re "(${question_string})$" { + send_gdb "$response_string\n"; + exp_continue; + } + -re "Undefined command:.*$gdb_prompt" { + perror "Undefined command \"$command\"." + set result 1 + } + -re "Ambiguous command.*$gdb_prompt $" { + perror "\"$command\" is not a unique command name." + set result 1 + } + -re "Program exited with code \[0-9\]+.*$gdb_prompt $" { + if ![string match "" $message] then { + set errmsg "$message: the program exited" + } else { + set errmsg "$command: the program exited" + } + fail "$errmsg" + return -1 + } + -re "The program is not being run.*$gdb_prompt $" { + if ![string match "" $message] then { + set errmsg "$message: the program is no longer running" + } else { + set errmsg "$command: the program is no longer running" + } + fail "$errmsg" + return -1 + } + -re ".*$gdb_prompt $" { + if ![string match "" $message] then { + fail "$message" + } + set result 1 + } + "<return>" { + send_gdb "\n" + perror "Window too small." + } + -re "\\(y or n\\) " { + send_gdb "n\n" + perror "Got interactive prompt." + } + eof { + perror "Process no longer exists" + if { $message != "" } { + fail "$message" + } + return -1 + } + full_buffer { + perror "internal buffer is full." + } + timeout { + if ![string match "" $message] then { + fail "$message (timeout)" + } + set result 1 + } + } + return $result +} + +# Test that a command gives an error. For pass or fail, return +# a 1 to indicate that more tests can proceed. However a timeout +# is a serious error, generates a special fail message, and causes +# a 0 to be returned to indicate that more tests are likely to fail +# as well. + +proc test_print_reject { args } { + global gdb_prompt + global verbose + + if [llength $args]==2 then { + set expectthis [lindex $args 1] + } else { + set expectthis "should never match this bogus string" + } + set sendthis [lindex $args 0] + if $verbose>2 then { + send_user "Sending \"$sendthis\" to gdb\n" + send_user "Looking to match \"$expectthis\"\n" + } + send_gdb "$sendthis\n" + #FIXME: Should add timeout as parameter. + gdb_expect { + -re "A .* in expression.*\\.*$gdb_prompt $" { + pass "reject $sendthis" + return 1 + } + -re "Invalid syntax in expression.*$gdb_prompt $" { + pass "reject $sendthis" + return 1 + } + -re "Junk after end of expression.*$gdb_prompt $" { + pass "reject $sendthis" + return 1 + } + -re "Invalid number.*$gdb_prompt $" { + pass "reject $sendthis" + return 1 + } + -re "Invalid character constant.*$gdb_prompt $" { + pass "reject $sendthis" + return 1 + } + -re "No symbol table is loaded.*$gdb_prompt $" { + pass "reject $sendthis" + return 1 + } + -re "No symbol .* in current context.*$gdb_prompt $" { + pass "reject $sendthis" + return 1 + } + -re "$expectthis.*$gdb_prompt $" { + pass "reject $sendthis" + return 1 + } + -re ".*$gdb_prompt $" { + fail "reject $sendthis" + return 1 + } + default { + fail "reject $sendthis (eof or timeout)" + return 0 + } + } +} + +# Given an input string, adds backslashes as needed to create a +# regexp that will match the string. + +proc string_to_regexp {str} { + set result $str + regsub -all {[]*+.|()^$\[]} $str {\\&} result + return $result +} + +# Same as gdb_test, but the second parameter is not a regexp, +# but a string that must match exactly. + +proc gdb_test_exact { args } { + upvar timeout timeout + + set command [lindex $args 0] + + # This applies a special meaning to a null string pattern. Without + # this, "$pattern\r\n$gdb_prompt $" will match anything, including error + # messages from commands that should have no output except a new + # prompt. With this, only results of a null string will match a null + # string pattern. + + set pattern [lindex $args 1] + if [string match $pattern ""] { + set pattern [string_to_regexp [lindex $args 0]] + } else { + set pattern [string_to_regexp [lindex $args 1]] + } + + # It is most natural to write the pattern argument with only + # embedded \n's, especially if you are trying to avoid Tcl quoting + # problems. But gdb_expect really wants to see \r\n in patterns. So + # transform the pattern here. First transform \r\n back to \n, in + # case some users of gdb_test_exact already do the right thing. + regsub -all "\r\n" $pattern "\n" pattern + regsub -all "\n" $pattern "\r\n" pattern + if [llength $args]==3 then { + set message [lindex $args 2] + } else { + set message $command + } + + return [gdb_test $command $pattern $message] +} + +proc gdb_reinitialize_dir { subdir } { + global gdb_prompt + + if [is_remote host] { + return ""; + } + send_gdb "dir\n" + gdb_expect 60 { + -re "Reinitialize source path to empty.*y or n. " { + send_gdb "y\n" + gdb_expect 60 { + -re "Source directories searched.*$gdb_prompt $" { + send_gdb "dir $subdir\n" + gdb_expect 60 { + -re "Source directories searched.*$gdb_prompt $" { + verbose "Dir set to $subdir" + } + -re "$gdb_prompt $" { + perror "Dir \"$subdir\" failed." + } + } + } + -re "$gdb_prompt $" { + perror "Dir \"$subdir\" failed." + } + } + } + -re "$gdb_prompt $" { + perror "Dir \"$subdir\" failed." + } + } +} + +# +# gdb_exit -- exit the GDB, killing the target program if necessary +# +proc default_gdb_exit {} { + global GDB + global GDBFLAGS + global verbose + global gdb_spawn_id; + + gdb_stop_suppressing_tests; + + if ![info exists gdb_spawn_id] { + return; + } + + verbose "Quitting $GDB $GDBFLAGS" + + if { [is_remote host] && [board_info host exists fileid] } { + send_gdb "quit\n"; + gdb_expect 10 { + -re "y or n" { + send_gdb "y\n"; + exp_continue; + } + -re "DOSEXIT code" { } + default { } + } + } + + if ![is_remote host] { + remote_close host; + } + unset gdb_spawn_id +} + +# +# load a file into the debugger. +# return a -1 if anything goes wrong. +# +proc gdb_file_cmd { arg } { + global verbose + global loadpath + global loadfile + global GDB + global gdb_prompt + upvar timeout timeout + + if [is_remote host] { + set arg [remote_download host $arg]; + if { $arg == "" } { + error "download failed" + return -1; + } + } + + send_gdb "file $arg\n" + gdb_expect 120 { + -re "Reading symbols from.*done.*$gdb_prompt $" { + verbose "\t\tLoaded $arg into the $GDB" + return 0 + } + -re "has no symbol-table.*$gdb_prompt $" { + perror "$arg wasn't compiled with \"-g\"" + return -1 + } + -re "A program is being debugged already.*Kill it.*y or n. $" { + send_gdb "y\n" + verbose "\t\tKilling previous program being debugged" + exp_continue + } + -re "Load new symbol table from \".*\".*y or n. $" { + send_gdb "y\n" + gdb_expect 120 { + -re "Reading symbols from.*done.*$gdb_prompt $" { + verbose "\t\tLoaded $arg with new symbol table into $GDB" + return 0 + } + timeout { + perror "(timeout) Couldn't load $arg, other program already loaded." + return -1 + } + } + } + -re "No such file or directory.*$gdb_prompt $" { + perror "($arg) No such file or directory\n" + return -1 + } + -re "$gdb_prompt $" { + perror "couldn't load $arg into $GDB." + return -1 + } + timeout { + perror "couldn't load $arg into $GDB (timed out)." + return -1 + } + eof { + # This is an attempt to detect a core dump, but seems not to + # work. Perhaps we need to match .* followed by eof, in which + # gdb_expect does not seem to have a way to do that. + perror "couldn't load $arg into $GDB (end of file)." + return -1 + } + } +} + +# +# start gdb -- start gdb running, default procedure +# +# When running over NFS, particularly if running many simultaneous +# tests on different hosts all using the same server, things can +# get really slow. Give gdb at least 3 minutes to start up. +# +proc default_gdb_start { } { + global verbose + global GDB + global GDBFLAGS + global gdb_prompt + global timeout + global gdb_spawn_id; + + gdb_stop_suppressing_tests; + + verbose "Spawning $GDB -nw $GDBFLAGS" + + if [info exists gdb_spawn_id] { + return 0; + } + + if ![is_remote host] { + if { [which $GDB] == 0 } then { + perror "$GDB does not exist." + exit 1 + } + } + set res [remote_spawn host "$GDB -nw $GDBFLAGS [host_info gdb_opts]"]; + if { $res < 0 || $res == "" } { + perror "Spawning $GDB failed." + return 1; + } + gdb_expect 360 { + -re "\[\r\n\]$gdb_prompt $" { + verbose "GDB initialized." + } + -re "$gdb_prompt $" { + perror "GDB never initialized." + return -1 + } + timeout { + perror "(timeout) GDB never initialized after 10 seconds." + remote_close host; + return -1 + } + } + set gdb_spawn_id -1; + # force the height to "unlimited", so no pagers get used + + send_gdb "set height 0\n" + gdb_expect 10 { + -re "$gdb_prompt $" { + verbose "Setting height to 0." 2 + } + timeout { + warning "Couldn't set the height to 0" + } + } + # force the width to "unlimited", so no wraparound occurs + send_gdb "set width 0\n" + gdb_expect 10 { + -re "$gdb_prompt $" { + verbose "Setting width to 0." 2 + } + timeout { + warning "Couldn't set the width to 0." + } + } + return 0; +} + +# * For crosses, the CHILL runtime doesn't build because it can't find +# setjmp.h, stdio.h, etc. +# * For AIX (as of 16 Mar 95), (a) there is no language code for +# CHILL in output_epilog in gcc/config/rs6000/rs6000.c, (b) collect2 +# does not get along with AIX's too-clever linker. +# * On Irix5, there is a bug whereby set of bool, etc., don't get +# TYPE_LOW_BOUND for the bool right because force_to_range_type doesn't +# work with stub types. +# Lots of things seem to fail on the PA, and since it's not a supported +# chill target at the moment, don't run the chill tests. + +proc skip_chill_tests {} { + if ![info exists do_chill_tests] { + return 1; + } + eval set skip_chill [expr ![isnative] || [istarget "*-*-aix*"] || [istarget "*-*-irix5*"] || [istarget "*-*-irix6*"] || [istarget "alpha-*-osf*"] || [istarget "hppa*-*-*"]] + verbose "Skip chill tests is $skip_chill" + return $skip_chill +} + +# skip all the tests in the file if you are not on an hppa running hpux target. +# and you compiled with gcc +proc skip_hp_tests {gcc_used} { + # if ![info exists do_hp_tests] { + # return 1; + # } + eval set skip_hp [expr ![isnative] || ![istarget "hppa*-*-hpux*"] || $gcc_used!=0 ] + verbose "Skip hp tests is $skip_hp" + return $skip_hp +} + +proc get_compiler_info {binfile args} { + # Create and source the file that provides information about the compiler + # used to compile the test case. + # Compiler_type can be null or c++. If null we assume c. + global srcdir + global subdir + # These two come from compiler.c. + global signed_keyword_not_used + global gcc_compiled + + if {![istarget "hppa*-*-hpux*"]} { + if { [llength $args] > 0 } { + if {$args == "c++"} { + if { [gdb_compile "${srcdir}/${subdir}/compiler.cc" "${binfile}.ci" preprocess {}] != "" } { + perror "Couldn't make ${binfile}.ci file" + return 1; + } + } + } else { + if { [gdb_compile "${srcdir}/${subdir}/compiler.c" "${binfile}.ci" preprocess {}] != "" } { + perror "Couldn't make ${binfile}.ci file" + return 1; + } + } + } else { + if { [llength $args] > 0 } { + if {$args == "c++"} { + if { [eval gdb_preprocess \ + [list "${srcdir}/${subdir}/compiler.cc" "${binfile}.ci"] \ + $args] != "" } { + perror "Couldn't make ${binfile}.ci file" + return 1; + } + } + } else { + if { [eval gdb_preprocess \ + [list "${srcdir}/${subdir}/compiler.c" "${binfile}.ci"] \ + $args] != "" } { + perror "Couldn't make ${binfile}.ci file" + return 1; + } + } + } + + source ${binfile}.ci + return 0; +} + +proc gdb_preprocess {source dest args} { + global CC_FOR_TARGET + global CXX_FOR_TARGET + + if { [llength $args] == 0 } { + set which_compiler "c" + } else { + if { $args =="c++" } { + set which_compiler "c++" + } else { + perror "Unknown compiler type supplied to gdb_preprocess" + return 1; + } + } + + if [info exists CC_FOR_TARGET] { + if { $which_compiler == "c"} { + set compiler $CC_FOR_TARGET; + } + } + + if [info exists CXX_FOR_TARGET] { + if { $which_compiler == "c++"} { + set compiler $CXX_FOR_TARGET; + } + } + + if { ![info exists compiler] } { + if { $which_compiler == "c" } { + if {[info exists CC]} { + set compiler $CC; + } + } + if { $which_compiler == "c++" } { + if {[info exists CXX]} { + set compiler $CXX; + } + } + if {![info exists compiler]} { + set compiler [board_info [target_info name] compiler]; + if { $compiler == "" } { + puts "default_target_compile: No compiler to compile with"; + return "default_target_compile: No compiler to compile with"; + } + } + } + + set cmdline "$compiler -E $source > $dest" + + verbose "Invoking $compiler -E $source > $dest" + verbose -log "Executing on local host: $cmdline" 2 + set status [catch "exec ${cmdline}" exec_output] + + set result [prune_warnings $exec_output] + regsub "\[\r\n\]*$" "$result" "" result; + regsub "^\[\r\n\]*" "$result" "" result; + if { $result != "" } { + clone_output "gdb compile failed, $result" + } + return $result; +} + +proc gdb_compile {source dest type options} { + global GDB_TESTCASE_OPTIONS; + + if [target_info exists gdb_stub] { + set options2 { "additional_flags=-Dusestubs" } + lappend options "libs=[target_info gdb_stub]"; + set options [concat $options2 $options] + } + if [target_info exists is_vxworks] { + set options2 { "additional_flags=-Dvxworks" } + lappend options "libs=[target_info gdb_stub]"; + set options [concat $options2 $options] + } + if [info exists GDB_TESTCASE_OPTIONS] { + lappend options "additional_flags=$GDB_TESTCASE_OPTIONS"; + } + verbose "options are $options" + verbose "source is $source $dest $type $options" + + set result [target_compile $source $dest $type $options]; + regsub "\[\r\n\]*$" "$result" "" result; + regsub "^\[\r\n\]*" "$result" "" result; + if { $result != "" } { + clone_output "gdb compile failed, $result" + } + return $result; +} + +proc send_gdb { string } { + global suppress_flag; + if { $suppress_flag } { + return "suppressed"; + } + return [remote_send host "$string"]; +} + +# +# + +proc gdb_expect { args } { + if { [llength $args] == 2 && [lindex $args 0] != "-re" } { + set gtimeout [lindex $args 0]; + set expcode [list [lindex $args 1]]; + } else { + upvar timeout timeout; + + set expcode $args; + if [target_info exists gdb,timeout] { + if [info exists timeout] { + if { $timeout < [target_info gdb,timeout] } { + set gtimeout [target_info gdb,timeout]; + } else { + set gtimeout $timeout; + } + } else { + set gtimeout [target_info gdb,timeout]; + } + } + + if ![info exists gtimeout] { + global timeout; + if [info exists timeout] { + set gtimeout $timeout; + } else { + # Eeeeew. + set gtimeout 60; + } + } + } + global suppress_flag; + global remote_suppress_flag; + if [info exists remote_suppress_flag] { + set old_val $remote_suppress_flag; + } + if [info exists suppress_flag] { + if { $suppress_flag } { + set remote_suppress_flag 1; + } + } + set code [catch {uplevel remote_expect host $gtimeout $expcode} string]; + if [info exists old_val] { + set remote_suppress_flag $old_val; + } else { + if [info exists remote_suppress_flag] { + unset remote_suppress_flag; + } + } + + if {$code == 1} { + global errorInfo errorCode; + + return -code error -errorinfo $errorInfo -errorcode $errorCode $string + } elseif {$code == 2} { + return -code return $string + } elseif {$code == 3} { + return + } elseif {$code > 4} { + return -code $code $string + } +} + +proc gdb_suppress_entire_file { reason } { + global suppress_flag; + + warning "$reason\n"; + set suppress_flag -1; +} + +# +# Set suppress_flag, which will cause all subsequent calls to send_gdb and +# gdb_expect to fail immediately (until the next call to +# gdb_stop_suppressing_tests). +# +proc gdb_suppress_tests { args } { + global suppress_flag; + + return; # fnf - disable pending review of results where + # testsuite ran better without this + incr suppress_flag; + + if { $suppress_flag == 1 } { + if { [llength $args] > 0 } { + warning "[lindex $args 0]\n"; + } else { + warning "Because of previous failure, all subsequent tests in this group will automatically fail.\n"; + } + } +} + +# +# Clear suppress_flag. +# +proc gdb_stop_suppressing_tests { } { + global suppress_flag; + + if [info exists suppress_flag] { + if { $suppress_flag > 0 } { + set suppress_flag 0; + clone_output "Tests restarted.\n"; + } + } else { + set suppress_flag 0; + } +} + +proc gdb_clear_suppressed { } { + global suppress_flag; + + set suppress_flag 0; +} + +proc gdb_start { } { + default_gdb_start +} + +proc gdb_exit { } { + catch default_gdb_exit +} + +# +# gdb_load -- load a file into the debugger. +# return a -1 if anything goes wrong. +# +proc gdb_load { arg } { + return [gdb_file_cmd $arg] +} + +proc gdb_continue { function } { + global decimal + + return [gdb_test "continue" ".*Breakpoint $decimal, $function .*" "continue to $function"]; +} + +proc default_gdb_init { args } { + gdb_clear_suppressed; + + # Uh, this is lame. Really, really, really lame. But there's this *one* + # testcase that will fail in random places if we don't increase this. + match_max -d 20000 + + # We want to add the name of the TCL testcase to the PASS/FAIL messages. + if { [llength $args] > 0 } { + global pf_prefix + + set file [lindex $args 0]; + + set pf_prefix "[file tail [file dirname $file]]/[file tail $file]:"; + } + global gdb_prompt; + if [target_info exists gdb_prompt] { + set gdb_prompt [target_info gdb_prompt]; + } else { + set gdb_prompt "\\(gdb\\)" + } +} + +proc gdb_init { args } { + return [eval default_gdb_init $args]; +} + +proc gdb_finish { } { + gdb_exit; +} + +global debug_format + +# Run the gdb command "info source" and extract the debugging format +# information from the output and save it in debug_format. + +proc get_debug_format { } { + global gdb_prompt + global verbose + global expect_out + global debug_format + + set debug_format "unknown" + send_gdb "info source\n" + gdb_expect 10 { + -re "Compiled with (.*) debugging format.\r\n$gdb_prompt $" { + set debug_format $expect_out(1,string) + verbose "debug format is $debug_format" + return 1; + } + -re "No current source file.\r\n$gdb_prompt $" { + perror "get_debug_format used when no current source file" + return 0; + } + -re "$gdb_prompt $" { + warning "couldn't check debug format (no valid response)." + return 1; + } + timeout { + warning "couldn't check debug format (timed out)." + return 1; + } + } +} + +# Like setup_xfail, but takes the name of a debug format (DWARF 1, +# COFF, stabs, etc). If that format matches the format that the +# current test was compiled with, then the next test is expected to +# fail for any target. Returns 1 if the next test or set of tests is +# expected to fail, 0 otherwise (or if it is unknown). Must have +# previously called get_debug_format. + +proc setup_xfail_format { format } { + global debug_format + + if [string match $debug_format $format] then { + setup_xfail "*-*-*" + return 1; + } + return 0 +} + +proc gdb_step_for_stub { } { + global gdb_prompt; + + if ![target_info exists gdb,use_breakpoint_for_stub] { + if [target_info exists gdb_stub_step_command] { + set command [target_info gdb_stub_step_command]; + } else { + set command "step"; + } + send_gdb "${command}\n"; + set tries 0; + gdb_expect 60 { + -re "(main.* at |.*in .*start).*$gdb_prompt" { + return; + } + -re ".*$gdb_prompt" { + incr tries; + if { $tries == 5 } { + fail "stepping out of breakpoint function"; + return; + } + send_gdb "${command}\n"; + exp_continue; + } + default { + fail "stepping out of breakpoint function"; + return; + } + } + } + send_gdb "where\n"; + gdb_expect { + -re "main\[^\r\n\]*at \(\[^:]+\):\(\[0-9\]+\)" { + set file $expect_out(1,string); + set linenum [expr $expect_out(2,string) + 1]; + set breakplace "${file}:${linenum}"; + } + default {} + } + send_gdb "break ${breakplace}\n"; + gdb_expect 60 { + -re "Breakpoint (\[0-9\]+) at.*$gdb_prompt" { + set breakpoint $expect_out(1,string); + } + -re "Breakpoint (\[0-9\]+): file.*$gdb_prompt" { + set breakpoint $expect_out(1,string); + } + default {} + } + send_gdb "continue\n"; + gdb_expect 60 { + -re "Breakpoint ${breakpoint},.*$gdb_prompt" { + gdb_test "delete $breakpoint" ".*" ""; + return; + } + default {} + } +} + +### gdb_get_line_number TEXT [FILE] +### +### Search the source file FILE, and return the line number of a line +### containing TEXT. Use this function instead of hard-coding line +### numbers into your test script. +### +### Specifically, this function uses GDB's "search" command to search +### FILE for the first line containing TEXT, and returns its line +### number. Thus, FILE must be a source file, compiled into the +### executable you are running. If omitted, FILE defaults to the +### value of the global variable `srcfile'; most test scripts set +### `srcfile' appropriately at the top anyway. +### +### Use this function to keep your test scripts independent of the +### exact line numbering of the source file. Don't write: +### +### send_gdb "break 20" +### +### This means that if anyone ever edits your test's source file, +### your test could break. Instead, put a comment like this on the +### source file line you want to break at: +### +### /* breakpoint spot: frotz.exp: test name */ +### +### and then write, in your test script (which we assume is named +### frotz.exp): +### +### send_gdb "break [gdb_get_line_number "frotz.exp: test name"]\n" +### +### (Yes, Tcl knows how to handle the nested quotes and brackets. +### Try this: +### $ tclsh +### % puts "foo [lindex "bar baz" 1]" +### foo baz +### % +### Tcl is quite clever, for a little stringy language.) + +proc gdb_get_line_number {text {file /omitted/}} { + global gdb_prompt; + global srcfile; + + if {! [string compare $file /omitted/]} { + set file $srcfile + } + + set result -1; + gdb_test "list ${file}:1,1" ".*" "" + send_gdb "search ${text}\n" + gdb_expect { + -re "\[\r\n\]+(\[0-9\]+)\[ \t\].*${text}.*$gdb_prompt $" { + set result $expect_out(1,string) + } + -re ".*$gdb_prompt $" { + fail "find line number containing \"${text}\"" + } + timeout { + fail "find line number containing \"${text}\" (timeout)" + } + } + return $result; +} + + |