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# Test `info auxv' and related functionality.

# Copyright

#       1992,1993,1994,1995,1996,1997,1998,1999,2000,2004,2007,2008,2009,2010

#       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 .

# This file is based on corefile.exp which was written by Fred

# Fish. (fnf@cygnus.com)

if { ! [istarget "*-*-linux*"] && ! [istarget "*-*-solaris*"] } {

    verbose "Skipping auxv.exp because of lack of support."

    return

}

if $tracelevel then {

        strace $tracelevel

}

set testfile "auxv"

set srcfile ${testfile}.c

set binfile ${objdir}/${subdir}/${testfile}

set corefile ${objdir}/${subdir}/${testfile}.corefile

set gcorefile ${objdir}/${subdir}/${testfile}.gcore

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {

    untested "couldn't compile ${srcdir}/${subdir}/${srcfile}"

    return -1

}

# Use a fresh directory to confine the native core dumps.

# Make it the working directory for gdb and its child.

set coredir "${objdir}/${subdir}/coredir.[getpid]"

file mkdir $coredir

set core_works [expr [isnative] && ! [is_remote target]]

# Run GDB on the test program up to where it will dump core.

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

gdb_load ${binfile}

gdb_test_no_output "set print sevenbit-strings"

gdb_test_no_output "set width 0"

if {$core_works} {

    if {[gdb_test "cd $coredir" ".*Working directory .*" \

             "cd to temporary directory for core dumps"]} {

        set core_works 0

    }

}

if { ![runto_main] } then {

    gdb_suppress_tests;

}

set print_core_line [gdb_get_line_number "ABORT;"]

gdb_test "tbreak $print_core_line"

gdb_test continue ".*ABORT;.*"

proc fetch_auxv {test} {

    global gdb_prompt

    set auxv_lines {}

    set bad -1

    # Former trailing `\[\r\n\]+' may eat just \r leaving \n in the buffer

    # corrupting the next matches.

    if {[gdb_test_multiple "info auxv" $test {

        -re "info auxv\r\n" {

            exp_continue

        }

        -ex "The program has no auxiliary information now" {

            set bad 1

            exp_continue

        }

        -ex "Auxiliary vector is empty" {

            set bad 1

            exp_continue

        }

        -ex "No auxiliary vector found" {

            set bad 1

            exp_continue

        }

        -re "^\[0-9\]+\[ \t\]+(AT_\[^ \t\]+)\[^\r\n\]+\r\n" {

            lappend auxv_lines $expect_out(0,string)

            exp_continue

        }

        -re "^\[0-9\]+\[ \t\]+\\?\\?\\?\[^\r\n\]+\r\n" {

            warning "Unrecognized tag value: $expect_out(0,string)"

            set bad 1

            lappend auxv_lines $expect_out(0,string)

            exp_continue

        }

        -re "$gdb_prompt $" {

            incr bad

        }

        -re "^\[^\r\n\]+\r\n" {

            if {!$bad} {

                warning "Unrecognized output: $expect_out(0,string)"

                set bad 1

            }

            exp_continue

        }

    }] != 0} {

        return {}

    }

    if {$bad} {

        fail $test

        return {}

    }

    pass $test

    return $auxv_lines

}

set live_data [fetch_auxv "info auxv on live process"]

# Now try gcore.

set gcore_works 0

set escapedfilename [string_to_regexp $gcorefile]

gdb_test_multiple "gcore $gcorefile" "gcore" {

    -re "Saved corefile ${escapedfilename}\[\r\n\]+$gdb_prompt $" {

        pass "gcore"

        set gcore_works 1

    }

    -re "Can't create a corefile\[\r\n\]+$gdb_prompt $" {

        unsupported "gcore"

    }

    -re "Undefined command: .*\[\r\n\]+$gdb_prompt $" {

        unsupported "gcore"

    }

}

# Let the program continue and die.

gdb_test continue ".*Program received signal.*"

gdb_test continue ".*Program terminated with signal.*"

# Now collect the core dump it left.

set test "generate native core dump"

if {$core_works} {

    # Find the

    set names [glob -nocomplain -directory $coredir *core*]

    if {[llength $names] == 1} {

        set file [file join $coredir [lindex $names 0]]

        remote_exec build "mv $file $corefile"

        pass $test

    } else {

        set core_works 0

        warning "can't generate a core file - core tests suppressed - check ulimit -c"

        fail $test

    }

} else {

    unsupported $test

}

remote_exec build "rm -rf $coredir"

# Now we can examine the core files and check that their data matches what

# we saw in the process.  Note that the exact data can vary between runs,

# so it's important that the native core dump file and the gcore-created dump

# both be from the same run of the program as we examined live.

proc do_core_test {works corefile test1 test2} {

    if {! $works} {

        unsupported $test1

        unsupported $test2

    } else {

        gdb_test "core $corefile" "Core was generated by.*" \

            "load core file for $test1" \

            "A program is being debugged already.*" "y"

        set core_data [fetch_auxv $test1]

        global live_data

        if {$core_data == $live_data} {

            pass $test2

        } else {

            fail $test2

        }

    }

}

do_core_test $core_works $corefile \

    "info auxv on native core dump" "matching auxv data from live and core"

do_core_test $gcore_works $gcorefile \

    "info auxv on gcore-created dump" "matching auxv data from live and gcore"