Subversion Repositories openrisc_me

# Copyright 1997, 1999, 2002, 2003, 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 .  */

if $tracelevel then {

    strace $tracelevel

}

# On HP-UX 11.0, this test is causing a process running the program

# "attach" to be left around spinning.  Until we figure out why, I am

# commenting out the test to avoid polluting tiamat (our 11.0 nightly

# test machine) with these processes. RT

#

# Setting the magic bit in the target app should work.  I added a

# "kill", and also a test for the R3 register warning.  JB

if { [istarget "hppa*-*-hpux*"] } {

    return 0

}

# are we on a target board

if [is_remote target] then {

    return 0

}

set testfile "attach"

set srcfile  ${testfile}.c

set srcfile2 ${testfile}2.c

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

set binfile2 ${objdir}/${subdir}/${testfile}2

set escapedbinfile  [string_to_regexp ${objdir}/${subdir}/${testfile}]

#execute_anywhere "rm -f ${binfile} ${binfile2}"

remote_exec build "rm -f ${binfile} ${binfile2}"

# For debugging this test

#

#log_user 1

# build the first test case

#

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

    untested attach.exp

    return -1

}

# Build the in-system-call test

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile2}" "${binfile2}" executable {debug}] != "" } {

    untested attach.exp

    return -1

}

if [get_compiler_info ${binfile}] {

    return -1

}

proc do_attach_tests {} {

    global gdb_prompt

    global binfile

    global escapedbinfile

    global srcfile

    global testfile

    global objdir

    global subdir

    global timeout

    # Start the program running and then wait for a bit, to be sure

    # that it can be attached to.

    set testpid [eval exec $binfile &]

    exec sleep 2

    if { [istarget "*-*-cygwin*"] } {

        # testpid is the Cygwin PID, GDB uses the Windows PID, which might be

        # different due to the way fork/exec works.

        set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ]

    }

    # Verify that we cannot attach to nonsense.

    set test "attach to nonsense is prohibited"

    gdb_test_multiple "attach abc" "$test" {

        -re "Illegal process-id: abc\\.\r\n$gdb_prompt $" {

            pass "$test"

        }

        -re "Attaching to.*, process .*couldn't open /proc file.*$gdb_prompt $" {

            # Response expected from /proc-based systems.

            pass "$test"

        }

        -re "Can't attach to process..*$gdb_prompt $" {

            # Response expected on Cygwin

            pass "$test"

        }

        -re "Attaching to.*$gdb_prompt $" {

            fail "$test (bogus pid allowed)"

        }

    }

    # Verify that we cannot attach to nonsense even if its initial part is

    # a valid PID.

    set test "attach to digits-starting nonsense is prohibited"

    gdb_test_multiple "attach ${testpid}x" "$test" {

        -re "Illegal process-id: ${testpid}x\\.\r\n$gdb_prompt $" {

            pass "$test"

        }

        -re "Attaching to.*, process .*couldn't open /proc file.*$gdb_prompt $" {

            # Response expected from /proc-based systems.

            pass "$test"

        }

        -re "Can't attach to process..*$gdb_prompt $" {

            # Response expected on Cygwin

            pass "$test"

        }

        -re "Attaching to.*$gdb_prompt $" {

            fail "$test (bogus pid allowed)"

        }

    }

    # Verify that we cannot attach to what appears to be a valid

    # process ID, but is a process that doesn't exist.  Traditionally,

    # most systems didn't have a process with ID 0, so we take that as

    # the default.  However, there are a few exceptions.

    set boguspid 0

    if { [istarget "*-*-*bsd*"] } {

        # In FreeBSD 5.0, PID 0 is used for "swapper".  Use -1 instead

        # (which should have the desired effect on any version of

        # FreeBSD, and probably other *BSD's too).

        set boguspid -1

    }

    set test "attach to nonexistent process is prohibited"

    gdb_test_multiple "attach $boguspid" "$test" {

        -re "Attaching to.*, process $boguspid.*No such process.*$gdb_prompt $" {

            # Response expected on ptrace-based systems (i.e. HP-UX 10.20).

            pass "$test"

        }

        -re "Attaching to.*, process $boguspid failed.*Hint.*$gdb_prompt $" {

            # Response expected on ttrace-based systems (i.e. HP-UX 11.0).

            pass "$test"

        }

        -re "Attaching to.*, process $boguspid.*denied.*$gdb_prompt $" {

            pass "$test"

        }

        -re "Attaching to.*, process $boguspid.*not permitted.*$gdb_prompt $" {

            pass "$test"

        }

        -re "Attaching to.*, process .*couldn't open /proc file.*$gdb_prompt $" {

            # Response expected from /proc-based systems.

            pass "$test"

        }

        -re "Can't attach to process..*$gdb_prompt $" {

            # Response expected on Cygwin

            pass "$test"

        }

    }

    # Verify that we can attach to the process by first giving its

    # executable name via the file command, and using attach with the

    # process ID.

    # (Actually, the test system appears to do this automatically for

    # us.  So, we must also be prepared to be asked if we want to

    # discard an existing set of symbols.)

    set test "set file, before attach1"

    gdb_test_multiple "file $binfile" "$test" {

        -re "Load new symbol table from.*y or n. $" {

            gdb_test "y" "Reading symbols from $escapedbinfile\.\.\.*done." \

                "$test (re-read)"

        }

        -re "Reading symbols from $escapedbinfile\.\.\.*done.*$gdb_prompt $" {

            pass "$test"

        }

    }

    set test "attach1, after setting file"

    gdb_test_multiple "attach $testpid" "$test" {

        -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*main.*at .*$srcfile:.*$gdb_prompt $" {

            pass "$test"

        }

        -re "Attaching to program.*`?$escapedbinfile\.exe'?, process $testpid.*\[Switching to thread $testpid\..*\].*$gdb_prompt $" {

            # Response expected on Cygwin

            pass "$test"

        }

    }

    # Verify that we can "see" the variable "should_exit" in the

    # program, and that it is zero.

    gdb_test "print should_exit" " = 0" "after attach1, print should_exit"

    # Detach the process.

    gdb_test "detach" \

        "Detaching from program: .*$escapedbinfile, process $testpid" \

        "attach1 detach"

    # Wait a bit for gdb to finish detaching

    exec sleep 5

    # Purge the symbols from gdb's brain.  (We want to be certain the

    # next attach, which won't be preceded by a "file" command, is

    # really getting the executable file without our help.)

    set old_timeout $timeout

    set timeout 15

    set test "attach1, purging symbols after detach"

    gdb_test_multiple "file" "$test" {

        -re "No executable file now.*Discard symbol table.*y or n. $" {

            gdb_test "y" "No symbol file now." "$test"

        }

    }

    set timeout $old_timeout

    # Verify that we can attach to the process just by giving the

    # process ID.

    set test "set file, before attach2"

    gdb_test_multiple "attach $testpid" "$test" {

        -re "Attaching to process $testpid.*Load new symbol table from \"$escapedbinfile\.exe\".*y or n. $" {

            # On Cygwin, the DLL's symbol tables are loaded prior to the

            # executable's symbol table.  This in turn always results in

            # asking the user for actually loading the symbol table of the

            # executable.

            gdb_test "y" "Reading symbols from $escapedbinfile\.\.\.*done." \

                "$test (reset file)"

        }

        -re "Attaching to process $testpid.*Reading symbols from $escapedbinfile.*main.*at .*$gdb_prompt $" {

            pass "$test"

        }

    }

    # Verify that we can modify the variable "should_exit" in the

    # program.

    gdb_test_no_output "set should_exit=1" "after attach2, set should_exit"

    # Verify that the modification really happened.

    gdb_test "tbreak 19" "Temporary breakpoint .*at.*$srcfile, line 19.*" \

        "after attach2, set tbreak postloop"

    gdb_test "continue" "main.*at.*$srcfile:19.*" \

        "after attach2, reach tbreak postloop"

    # Allow the test process to exit, to cleanup after ourselves.

    gdb_test "continue" "Program exited normally." "after attach2, exit"

    # Make sure we don't leave a process around to confuse

    # the next test run (and prevent the compile by keeping

    # the text file busy), in case the "set should_exit" didn't

    # work.

    remote_exec build "kill -9 ${testpid}"

    # Start the program running and then wait for a bit, to be sure

    # that it can be attached to.

    set testpid [eval exec $binfile &]

    exec sleep 2

    if { [istarget "*-*-cygwin*"] } {

        # testpid is the Cygwin PID, GDB uses the Windows PID, which might be

        # different due to the way fork/exec works.

        set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ]

    }

    # Verify that we can attach to the process, and find its a.out

    # when we're cd'd to some directory that doesn't contain the

    # a.out.  (We use the source path set by the "dir" command.)

    gdb_test "dir ${objdir}/${subdir}" "Source directories searched: .*" \

        "set source path"

    gdb_test "cd /tmp" "Working directory /tmp." \

        "cd away from process working directory"

    # Explicitly flush out any knowledge of the previous attachment.

    set test "before attach3, flush symbols"

    gdb_test_multiple "symbol-file" "$test" {

        -re "Discard symbol table from.*y or n. $" {

            gdb_test "y" "No symbol file now." \

                "$test"

        }

        -re "No symbol file now.*$gdb_prompt $" {

            pass "$test"

        }

    }

    gdb_test "exec" "No executable file now." \

        "before attach3, flush exec"

    gdb_test "attach $testpid" \

        "Attaching to process $testpid.*Reading symbols from $escapedbinfile.*main.*at .*" \

        "attach when process' a.out not in cwd"

    set test "after attach3, exit"

    gdb_test "kill" \

        "" \

        "$test" \

        "Kill the program being debugged.*y or n. $" \

        "y"

    # Another "don't leave a process around"

    remote_exec build "kill -9 ${testpid}"

}

proc do_call_attach_tests {} {

    global gdb_prompt

    global binfile2

    # Start the program running and then wait for a bit, to be sure

    # that it can be attached to.

    set testpid [eval exec $binfile2 &]

    exec sleep 2

    if { [istarget "*-*-cygwin*"] } {

        # testpid is the Cygwin PID, GDB uses the Windows PID, which might be

        # different due to the way fork/exec works.

        set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ]

    }

    # Attach

    gdb_test "file $binfile2" ".*" "force switch to gdb64, if necessary"

    set test "attach call"

    gdb_test_multiple "attach $testpid" "$test" {

        -re "warning: reading register.*I.*O error.*$gdb_prompt $" {

            fail "$test (read register error)"

        }

        -re "Attaching to.*process $testpid.*libc.*$gdb_prompt $" {

            pass "$test"

        }

        -re "Attaching to.*process $testpid.*\[Switching to thread $testpid\..*\].*$gdb_prompt $" {

            pass "$test"

        }

    }

    # See if other registers are problems

    set test "info other register"

    gdb_test_multiple "i r r3" "$test" {

        -re "warning: reading register.*$gdb_prompt $" {

            fail "$test"

        }

        -re "r3.*$gdb_prompt $" {

            pass "$test"

        }

    }

    # Get rid of the process

    gdb_test "p should_exit = 1"

    gdb_test "c" "Program exited normally."

    # Be paranoid

    remote_exec build "kill -9 ${testpid}"

}

# Start with a fresh gdb

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

gdb_load ${binfile}

# This is a test of gdb's ability to attach to a running process.

do_attach_tests

# Test attaching when the target is inside a system call

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

do_call_attach_tests

return 0