old-cross-binutils/gdb/testsuite/gdb.threads/step.exp
Joel Brobecker e22f8b7c8c Switch the license of all .exp files to GPLv3.
Switch the license of all .f and .f90 files to GPLv3.
        Switch the license of all .s and .S files to GPLv3.
2007-08-23 18:14:19 +00:00

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# step.exp -- Expect script to test gdb with step.c
# Copyright (C) 1992, 1997, 2007 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/>.
# Please email any bugs, comments, and/or additions to this file to:
# bug-gdb@prep.ai.mit.edu
# This file was written by Hiro Sugawara. (hiro@lynx.com)
#
# This test really needs some major surgery to be acceptable, but
# I'm just about burnt out on lynx work, so I'm not doing it now.
#
# * The test has an indeterminate number of pass/fails
# for each run (it runs a small group of tests until
# it's timer kicks off). This is very bad for nightly
# automated regression testing.
#
# * It tries to "step" from withint he prologue of a
# function. This isn't support in gdb (it's going
# to act like a continue).
#
# * This test rarely check that it stopped in sensible
# places. (see previous bullet -- this test doesn't
# catch the fact it continued rather than stepped)
if $tracelevel then {
strace $tracelevel
}
set program_exited 0
proc set_bp { where } {
global gdb_prompt
send_gdb "break $where\n"
# The first regexp is what we get with -g, the second without -g.
gdb_expect {
-re "Break.* at .*: file .*, line \[0-9\]*.*$gdb_prompt $" {}
-re "Breakpoint \[0-9\]* at 0x\[0-9a-f\]*.*$gdb_prompt $" {}
-re "$gdb_prompt $" { fail "setting breakpoint at $where" ; return 0 }
timeout { fail "setting breakpoint at $where (timeout)" ; return 0 }
}
pass "set_bp"
}
proc step_it { cmd } {
global gdb_prompt
global program_exited
send_gdb "$cmd\n"
gdb_expect {
-re "0x\[0-9A-Fa-f\]* *in.*\r\n$gdb_prompt $" { pass "step_it"; return 0 }
-re "0x\[0-9A-Fa-f\]* *\[0-9\]*.*\r\n$gdb_prompt $" { pass "step_it"; return 1 }
-re "Program exited .*\n$gdb_prompt $" {
set program_exited 1
return -1
}
-re "$gdb_prompt $" { fail "single-stepping ($cmd).\n" ; return -1 }
timeout { fail "single-stepping ($cmd) timout.\n" ; return -1 }
}
}
proc step_inst {} {
step_it "stepi"
}
proc step_source {} {
step_it "step"
}
proc continue_all {} {
global gdb_prompt
send_gdb "continue\n"
gdb_expect {
-re "Breakpoint \[0-9\]*, thread\[0-9\]* .*$gdb_prompt $" {
pass "continue_all"
return 0
}
-re "Program exited .*\n$gdb_prompt $" {
set program_exited 1
return 1;
}
-re "$gdb_prompt $" { fail "continue" ; return -1 }
timeout { fail "continue (timeout)" ; return -1 }
}
}
proc check_threads { num_threads } {
global gdb_prompt
set curr_thread 0
send_gdb "info threads\n"
while { $num_threads > 0 } {
gdb_expect {
-re "\\* *\[0-9\]* process \[0-9\]* thread \[0-9\]* .*\n" {
incr curr_thread
set num_threads [expr $num_threads - 1]
}
-re " *\[0-9\]* process \[0-9\]* thread \[0-9\]* .*\n" {
set num_threads [expr $num_threads - 1]
}
-re "$gdb_prompt $" {
if { $num_threads < 0 } {
fail "check_threads (too many)" ; return -1
}
break
}
timeout { fail "check_threads (timeout)" ; return -1 }
}
}
if { $curr_thread == 0 } {
fail "check_threads (no current thread)\n"
return -1
}
if { $curr_thread > 1 } {
fail "check_threads (more than one current thread)\n"
return -1
}
return 0
}
proc test_cond_wait {} {
global program_exited
set_bp 135
runto 179
while { 1 } {
set stepi_counter 0
while { [step_inst] } {
if { $program_exited } { break }
incr stepi_counter
if { $stepi_counter > 30 } {
fail "too many stepi's per line\n"
return -1
}
}
if { $program_exited } { break }
step_source
if { $program_exited } { break }
continue_all
if { $program_exited } { break }
check_threads 3
}
}
proc do_tests {} {
global prms_id
global bug_id
global subdir
global objdir
global srcdir
global binfile
global gdb_prompt
set prms_id 0
set bug_id 0
# Start with a fresh gdb.
gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load $objdir/$subdir/$binfile
send_gdb "set width 0\n"
gdb_expect -re "$gdb_prompt $"
test_cond_wait
}
# Check to see if we have an executable to test. If not, then either we
# haven't tried to compile one, or the compilation failed for some reason.
# In either case, just notify the user and skip the tests in this file.
set binfile "step"
set srcfile "step.c"
if ![file exists $objdir/$subdir/$binfile] then {
if $all_flag then {
warning "$binfile does not exist; tests suppressed."
}
} else {
do_tests
}