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#   Copyright 1998, 2007, 2008 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 .

# Please email any bugs, comments, and/or additions to this file to:

# bug-gdb@prep.ai.mit.edu

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

load_lib "trace-support.exp";

if $tracelevel then {

    strace $tracelevel

}

set prms_id 0

set bug_id 0

gdb_exit

gdb_start

if [istarget "m68k-*-elf"] then {

    load_lib "emc-support.exp";

    set srcfile gdb_c_test.c

    set binfile [board_info target d490_binfile];

    gdb_test "set remotetimeout 6" "" ""

    set timeout 500

    gdb_target_monitor "$binfile"

    # Give a TSTOP and ignore errors, to make sure any previous trace is off

    gdb_test "tstop" "" ""

    gdb_test "tfind none"  "" ""

    send_gdb "compare-sections CS\n"

    gdb_expect {

        -re "MIS-MATCHED.*$gdb_prompt $" {

            untested backtrace.exp

            return -1

            all tests in this module will fail.";

        }

        -re ".*$gdb_prompt $" { }

    }

} else {

    set testfile "actions"

    set srcfile ${testfile}.c

    set binfile $objdir/$subdir/$testfile

    if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \

            executable {debug nowarnings}] != "" } {

        untested backtrace.exp

        return -1

    }

    gdb_load $binfile

    gdb_test "tstop"       "" ""

    gdb_test "tfind none"  "" ""

    runto_main

}

gdb_reinitialize_dir $srcdir/$subdir

# We generously give ourselves one "pass" if we successfully

# detect that this test cannot be run on this target!

if { ![gdb_target_supports_trace] } then {

    pass "Current target does not support trace"

    return 1;

}

#

# test backtraces in trace frames

#

set testline1 0

set testline2 0

set testline3 0

set testline4 0

set testline5 0

set testline6 0

set arg1 1

set arg2 2

set arg3 3

set arg4 4

set arg5 5

set arg6 6

set baseline [gdb_find_recursion_test_baseline $srcfile];

if { $baseline == -1 } {

    fail "Could not find gdb_recursion_test function"

    return;

}

send_gdb "list $baseline, +12\n"

gdb_expect {

    -re "\[\r\n\](\[0-9\]+).*gdbtestline 1 " {

        set testline1 $expect_out(1,string)

        exp_continue

    }

    -re "\[\r\n\](\[0-9\]+).*gdbtestline 2 " {

        set testline2 $expect_out(1,string)

        exp_continue

    }

    -re "\[\r\n\](\[0-9\]+).*gdbtestline 3 " {

        set testline3 $expect_out(1,string)

        exp_continue

    }

    -re "\[\r\n\](\[0-9\]+).*gdbtestline 4 " {

        set testline4 $expect_out(1,string)

        exp_continue

    }

    -re "\[\r\n\](\[0-9\]+).*gdbtestline 5 " {

        set testline5 $expect_out(1,string)

        exp_continue

    }

    -re "\[\r\n\](\[0-9\]+).*gdbtestline 6 " {

        set testline6 $expect_out(1,string)

        exp_continue

    }

    -re ".*$gdb_prompt $" {

        if { ($testline1 == 0) || ($testline2 == 0) || ($testline3 == 0) || ($testline4 == 0) || ($testline5 == 0) || ($testline6 == 0) } {

            untested backtrace.exp

            return -1

all tests in this module will fail."

        }

    }

    default {

            untested backtrace.exp

            return -1

all tests in this module will fail."

    }

}

#

# Setup backtrace experiment.  This will involve:

#   1) a tracepoint where nothing is collected

#   2) a tracepoint where only regs are collected

#   3) a tracepoint where regs, locals and args are collected

#   4) a tracepoint where regs plus some amount of stack are collected.

#

gdb_delete_tracepoints

set tdp2 [gdb_gettpnum $testline2]

set tdp3 [gdb_gettpnum $testline3]

set tdp4 [gdb_gettpnum $testline4]

set tdp5 [gdb_gettpnum $testline5]

set tdp6 [gdb_gettpnum $testline6]

if {    $tdp2 <= 0 || $tdp3 <= 0 || \

        $tdp4 <= 0 || $tdp5 <= 0 || $tdp6 <= 0 } then {

    fail "setting tracepoints failed"

    return;

}

#gdb_trace_setactions "setup TP to collect FP" \

#       "$tdp2" \

#       "collect \$fp" ""

#

gdb_trace_setactions "8.6: setup TP to collect regs" \

        "$tdp3" \

        "collect \$regs" "^$"

gdb_trace_setactions "8.6: setup TP to collect regs, args, and locals" \

        "$tdp4" \

        "collect \$regs, \$args, \$locs" "^$"

gdb_trace_setactions "8.6: setup TP to collect stack mem cast expr" \

        "$tdp6" \

        "collect \$fp, \(\*\(void \*\*\) \(\$sp\)\) @ 64" "^$"

gdb_test "tstart" "" ""

if [istarget "m68k-*-elf"] then {

    gdb_emclaptop_command "85,$arg1,$arg2,$arg3,$arg4,$arg5,$arg6"

    sleep 5

} else {

    gdb_test "break end" "" ""

    gdb_test "continue" \

            "Continuing.*Breakpoint $decimal, end.*" \

            "run trace experiment"

}

gdb_test "tstop" "" ""

proc gdb_backtrace_tdp_1 { msg } {

    global gdb_prompt

    # We are in a trace frame at which we didn't collect anything

    # except $PC.  Therefore we expect to be able to identify stack

    # frame #0, but that's about all.  In particular we do not expect

    # to be able to display the function's arguments or locals, and we

    # do not expect to be able to identify the caller of this function.

    send_gdb "backtrace\n"

    gdb_expect {

        -re "#0\[\t \]+gdb_recursion_test.*depth=.*$gdb_prompt $" {

            pass "$msg"

        }

        -re ".*$gdb_prompt $" {

            fail "$msg"

        }

        timeout { fail "$msg (timeout)" }

    }

}

proc gdb_backtrace_tdp_2 { msg } {

    global gdb_prompt

    # We are in a trace frame at which we collected only the registers

    # Therefore we expect to be able to identify stack frame #0, but

    # we don't expect to be able to display its args unles they are

    # passed in registers (which isn't the case for m68k), and we

    # don't expect to be able to identify the caller's stack frame.

    send_gdb "backtrace\n"

    gdb_expect {

        -re "#0\[\t \]+gdb_recursion_test.*depth=.*$gdb_prompt $" {

            pass "$msg"

        }

        -re ".*$gdb_prompt $" {

            fail "$msg"

        }

        timeout { fail "$msg (timeout)" }

    }

}

proc gdb_backtrace_tdp_3 { msg } {

    global gdb_prompt

    # We are in a trace frame at which we collected all registers, all

    # arguments and all locals.  This means that the display of

    # stack frame #0 should be complete (including argument values).

    send_gdb "backtrace\n"

    gdb_expect {

        -re "#0\[\t \]+gdb_recursion_test.*depth=\[0-9\]+.*q1=\[0-9\]+.*q2=\[0-9\]+.*q3=\[0-9\]+.*q4=\[0-9\]+.*q5=\[0-9\]+.*q6=\[0-9\]+.*$gdb_prompt $" {

            pass "$msg"

        }

        -re "#0\[\t \]+gdb_recursion_test.*depth=Cannot access.*$gdb_prompt $" {

            fail "$msg (failed to collect arguments)"

        }

        -re ".*$gdb_prompt $" {

            fail "$msg"

        }

        timeout { fail "$msg (timeout)" }

    }

}

proc gdb_backtrace_tdp_4 { msg depth } {

    global gdb_prompt

    # We are in a trace frame at which we collected all registers,

    # plus a sizeable hunk of stack memory.  This should enable us to

    # display at least several stack frames worth of backtrace.  We'll

    # assume that if we can't display at least "depth" levels (with

    # args), it counts as an error.

    send_gdb "backtrace\n"

    gdb_expect {

        -re "#$depth\[\t \].*gdb_recursion_test.*depth=\[0-9\]+.*q1=\[0-9\]+.*q2=\[0-9\]+.*q3=\[0-9\]+.*q4=\[0-9\]+.*q5=\[0-9\]+.*q6=\[0-9\]+.*$gdb_prompt $" {

            pass "$msg"

        }

        -re "#$depth\[\t \].*gdb_recursion_test.*depth=.*$gdb_prompt $" {

            fail "$msg (args missing from #$depth stack frame)"

        }

        -re "#\[0-9\]+\[\t \].*gdb_recursion_test.*depth=.*$gdb_prompt $" {

            fail "$msg (fewer than $depth stack frames found)"

        }

        -re ".*$gdb_prompt $" {

            fail "$msg"

        }

        timeout { fail "$msg (timeout)" }

    }

}

#

# begin backtrace test

#

set timeout 60

gdb_tfind_test "init: make sure not debugging any trace frame" "none" "-1"

gdb_tfind_test "8.6: find start frame" "start" "0"

gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \

        "TDP $tdp2:" ""

gdb_backtrace_tdp_1 "8.6: Backtrace, depth == 1, collect nothing"

gdb_tfind_test "8.6: find frame 1"     "1" "1"

gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \

        "TDP $tdp3:" ""

gdb_backtrace_tdp_2 "8.6: Backtrace, depth == 1, collect regs"

gdb_tfind_test "8.6: find frame 2"     "2" "2"

gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \

        "TDP $tdp4:" ""

gdb_backtrace_tdp_3 "8.6: Backtrace, depth == 1, collect args and locals"

gdb_tfind_test "8.6: find frame 4"     "4" "4"

gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \

        "TDP $tdp6:" ""

gdb_backtrace_tdp_4 "8.6: Backtrace, depth == 1, collect stack mem expr" "0"

gdb_tfind_test "8.6: find frame 5"     "5" "5"

gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \

        "TDP $tdp2:" ""

gdb_backtrace_tdp_1 "8.6: Backtrace, depth == 2, collect nothing"

gdb_tfind_test "8.6: find frame 6"     "6" "6"

gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \

        "TDP $tdp3:" ""

gdb_backtrace_tdp_2 "8.6: Backtrace, depth == 2, collect regs"

gdb_tfind_test "8.6: find frame 7"     "7" "7"

gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \

        "TDP $tdp4:" ""

gdb_backtrace_tdp_3 "8.6: Backtrace, depth == 2, collect args and locals"

gdb_tfind_test "8.6: find frame 9"     "9" "9"

gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \

        "TDP $tdp6:" ""

gdb_backtrace_tdp_4 "8.6: Backtrace, depth == 1, collect stack mem expr" "0"

gdb_tfind_test "8.6: find frame 10"    "10" "10"

gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \

        "TDP $tdp2:" ""

gdb_backtrace_tdp_1 "8.6: Backtrace, depth == 3, collect nothing"

gdb_tfind_test "8.6: find frame 11"    "11" "11"

gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \

        "TDP $tdp3:" ""

gdb_backtrace_tdp_2 "8.6: Backtrace, depth == 3, collect regs"

gdb_tfind_test "8.6: find frame 12"    "12" "12"

gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \

        "TDP $tdp4:" ""

gdb_backtrace_tdp_3 "8.6: Backtrace, depth == 3, collect args and locals"

gdb_tfind_test "8.6: find frame 14"    "14" "14"

gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \

        "TDP $tdp6:" ""

gdb_backtrace_tdp_4 "8.6: Backtrace, depth == 1, collect stack mem expr" "0"

gdb_tfind_test "8.6: find frame 15"    "15" "15"

gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \

        "TDP $tdp2:" ""

gdb_backtrace_tdp_1 "8.6: Backtrace, depth == 4, collect nothing"

gdb_tfind_test "8.6: find frame 16"    "16" "16"

gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \

        "TDP $tdp3:" ""

gdb_backtrace_tdp_2 "8.6: Backtrace, depth == 4, collect regs"

gdb_tfind_test "8.6: find frame 17"    "17" "17"

gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \

        "TDP $tdp4:" ""

gdb_backtrace_tdp_3 "8.6: Backtrace, depth == 4, collect args and locals"

gdb_tfind_test "8.6: find frame 19"    "19" "19"

gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \

        "TDP $tdp6:" ""

gdb_backtrace_tdp_4 "8.6: Backtrace, depth == 1, collect stack mem expr" "0"

gdb_test "printf \"x \%d x\\n\", depth == 3" \

        "x 0 x" \

        "1.13: trace in recursion: depth not equal to 3"

# Finished!

gdb_test "tfind none" "" ""