binutils-gdb/gdb/testsuite/gdb.trace/passc-dyn.exp

#   Copyright 1998-2018 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/>.

# This file was written by Michael Snyder (msnyder@cygnus.com)

load_lib "trace-support.exp"


gdb_exit
gdb_start
standard_testfile actions.c
if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
	  executable {debug nowarnings}] != "" } {
    untested "failed to compile"
    return -1
}
gdb_load $binfile
gdb_test "tstop"       ".*" ""
gdb_test "tfind none"  ".*" ""
runto_main
gdb_reinitialize_dir $srcdir/$subdir

if { ![gdb_target_supports_trace] } then {
    unsupported "current target does not support trace"
    return 1

}

# If testing on a remote host, download the source file.
# remote_download host $srcdir/$subdir/$srcfile


#
# test passcount dynamically (live target)
#

set baseline [gdb_find_recursion_test_baseline $srcfile]

if { $baseline == -1 } then {
    fail "could not find gdb_recursion_test function"
    return
}

# define relative source line numbers:
# all subsequent line numbers are relative to this first one (baseline)

set testline2  [expr $baseline +  4]
set testline3  [expr $baseline +  5]
set testline4  [expr $baseline +  6]

#
# test passcount command semantics (live test)
#

## Set three tracepoints with three different passcounts.
## Verify that the experiment stops after the one with the 
## lowest passcount is hit.

gdb_delete_tracepoints
set tdp2 [gdb_gettpnum "$testline2"]
set tdp3 [gdb_gettpnum "$testline3"]
set tdp4 [gdb_gettpnum "$testline4"]
if { $tdp2 <= 0 || $tdp3 <= 0 || $tdp4 <= 0 } then {
    fail "setting tracepoints"
    return
}

gdb_test "passcount 4 $tdp2" "Setting tracepoint $tdp2's passcount to 4" \
	"4.5: set passcount for tracepoint $tdp2"
gdb_test "passcount 2 $tdp3" "Setting tracepoint $tdp3's passcount to 2" \
	"4.5: set passcount for tracepoint $tdp3"
gdb_test "passcount 3 $tdp4" "Setting tracepoint $tdp4's passcount to 3" \
	"4.5: set passcount for tracepoint $tdp4"

gdb_test "tstart" ".*" ""

gdb_breakpoint "end" qualified
gdb_test "continue" \
    "Continuing.*Breakpoint $decimal, end.*" \
    "run trace experiment"
gdb_test "tstop" ".*" ""

gdb_test "tfind none" ".*" ""
if [gdb_test "printf \"x \%d x\\n\", \$trace_frame" "x -1 x" ""] {
    untested "skipping further tests due to print failure"
    return -1
}

gdb_test "tfind tracepoint $tdp2" ".*" ""
if [gdb_test "printf \"x \%d x\\n\", \$trace_frame" "x 0 x" ""] {
    untested "skipping further tests due to print failure"
    return -1
}

gdb_test "tfind tracepoint $tdp3" ".*" ""
if [gdb_test "printf \"x \%d x\\n\", \$trace_frame" "x 1 x" ""] {
    untested "skipping further tests due to print failure"
    return -1
}

gdb_test "tfind tracepoint $tdp4" ".*" ""
if [gdb_test "printf \"x \%d x\\n\", \$trace_frame" "x 2 x" ""] {
    untested "skipping further tests due to print failure"
    return -1
}

gdb_test "tfind tracepoint $tdp2" ".*" ""
if [gdb_test "printf \"x \%d x\\n\", \$trace_frame" "x 3 x" ""] {
    untested "skipping further tests due to print failure"
    return -1
}

gdb_test "tfind tracepoint $tdp3" ".*" ""
if [gdb_test "printf \"x \%d x\\n\", \$trace_frame" "x 4 x" ""] {
    untested "skipping further tests due to print failure"
    return -1
}

## We should now be at the last frame, because this frame's passcount
## should have caused collection to stop.  If we do a tfind now, 
## it should fail.

gdb_test "tfind" "failed to find.*" "4.5: dynamic passcount test"

# Finished!
gdb_test "tfind none" ".*" ""