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old-cross-binutils/gdb/testsuite/gdb.base/foll-vfork.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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# Copyright 1997, 1999, 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
if $tracelevel then {
strace $tracelevel
}
if { ![isnative] } then {
continue
}
set prms_id 0
set bug_id 0
# NOTE drow/2002-12-06: I don't know what the referenced kernel problem
# is, but it appears to be fixed in recent HP/UX versions.
##if [istarget "hppa2.0w-hp-hpux*"] {
## warning "Don't run gdb.base/foll-vfork.exp until JAGaa43495 kernel problem is fixed."
## return 0
##}
set testfile "foll-vfork"
set testfile2 "vforked-prog"
set srcfile ${testfile}.c
set srcfile2 ${testfile2}.c
set binfile ${objdir}/${subdir}/${testfile}
set binfile2 ${objdir}/${subdir}/${testfile2}
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
untested foll-vfork.exp
return -1
}
if { [gdb_compile "${srcdir}/${subdir}/${srcfile2}" "${binfile2}" executable {debug}] != "" } {
untested foll-vfork.exp
return -1
}
# Until "set follow-fork-mode" and "catch vfork" are implemented on
# other targets...
#
if ![istarget "hppa*-hp-hpux*"] then {
continue
}
# Test to see if we are on an HP-UX 10.20 and if so,
# do not run these tests as catching vfork is disabled for
# 10.20.
if [istarget "hppa*-hp-hpux10.20"] then {
return 0
}
# A few of these tests require a little more time than the standard
# timeout allows.
set oldtimeout $timeout
set timeout [expr "$timeout + 10"]
proc vfork_parent_follow_through_step {} {
global gdb_prompt
send_gdb "set follow parent\n"
gdb_expect {
-re "$gdb_prompt $" {pass "set follow parent, vfork through step"}
timeout {fail "set follow parent, vfork through step"}
}
send_gdb "next\n"
gdb_expect {
-re "Detaching after fork from.*13.*$gdb_prompt "\
{pass "vfork parent follow, through step"}
-re "$gdb_prompt $" {fail "vfork parent follow, through step"}
timeout {fail "(timeout) vfork parent follow, through step" }
}
# The child has been detached; allow time for any output it might
# generate to arrive, so that output doesn't get confused with
# any gdb_expected debugger output from a subsequent testpoint.
#
exec sleep 1
}
proc vfork_parent_follow_to_bp {} {
global gdb_prompt
send_gdb "set follow parent\n"
gdb_expect {
-re "$gdb_prompt $" {pass "set follow parent, vfork to bp"}
timeout {fail "set follow parent, vfork to bp"}
}
send_gdb "break 18\n"
gdb_expect {
-re "$gdb_prompt $" {pass "break, vfork to bp"}
timeout {fail "break, vfork to bp"}
}
send_gdb "continue\n"
gdb_expect {
-re ".*Detaching after fork from process.*Breakpoint.*18.*$gdb_prompt "\
{pass "vfork parent follow, to bp"}
-re "$gdb_prompt $" {fail "vfork parent follow, to bp"}
timeout {fail "(timeout) vfork parent follow, to bp" }
}
# The child has been detached; allow time for any output it might
# generate to arrive, so that output doesn't get confused with
# any expected debugger output from a subsequent testpoint.
#
exec sleep 1
}
proc vfork_and_exec_child_follow_to_main_bp {} {
global gdb_prompt
global binfile
send_gdb "set follow child\n"
gdb_expect {
-re "$gdb_prompt $" {pass "set follow child, vfork and exec to main bp"}
timeout {fail "set follow child, vfork and exec to main bp"}
}
send_gdb "continue\n"
gdb_expect {
-re "Detaching from program.*Attaching after fork to.*Executing new program.*Breakpoint.*vforked-prog.c:9.*$gdb_prompt "\
{pass "vfork and exec child follow, to main bp"}
-re "$gdb_prompt $" {fail "vfork and exec child follow, to main bp"}
timeout {fail "(timeout) vfork and exec child follow, to main bp" }
}
# The parent has been detached; allow time for any output it might
# generate to arrive, so that output doesn't get confused with
# any gdb_expected debugger output from a subsequent testpoint.
#
exec sleep 1
# Explicitly kill this child, or a subsequent rerun actually runs
# the exec'd child, not the original program...
send_gdb "kill\n"
gdb_expect {
-re ".*Kill the program being debugged.*y or n. $" {
send_gdb "y\n"
send_gdb "file $binfile\n"
gdb_expect {
-re ".*Load new symbol table from.*y or n. $" {
send_gdb "y\n"
gdb_expect {
-re "Reading symbols from.*$gdb_prompt $" {}
timeout { fail "loading symbols (timeout)"; return }
}
}
-re ".*gdb_prompt $" {}
timeout { fail "loading symbols (timeout)"; return }
}
}
-re ".*$gdb_prompt $" {}
timeout { fail "killing inferior (timeout)" ; return }
}
}
proc vfork_and_exec_child_follow_through_step {} {
global gdb_prompt
global binfile
# This test cannot be performed prior to HP-UX 10.30, because ptrace-based
# debugging of a vforking program basically doesn't allow the child to do
# things like hit a breakpoint between a vfork and exec. This means that
# saying "set follow child; next" at a vfork() call won't work, because
# the implementation of "next" sets a "step resume" breakpoint at the
# return from the vfork(), which the child will hit on its way to exec'ing.
#
if { ![istarget "hppa*-*-hpux11.*"] } {
verbose "vfork child-following next test ignored for non-hppa or pre-HP/UX-10.30 targets."
return 0
}
send_gdb "set follow child\n"
gdb_expect {
-re "$gdb_prompt $" {pass "set follow child, vfork and exec through step"}
timeout {fail "set follow child, vfork and exec through step"}
}
send_gdb "next\n"
gdb_expect {
-re "Detaching from program.*Attaching after fork to.*Executing new program.*Breakpoint.*vforked-prog.c:9.*$gdb_prompt "\
{pass "vfork and exec child follow, through step"}
-re "$gdb_prompt $" {fail "vfork and exec child follow, through step"}
timeout {fail "(timeout) vfork and exec child follow, through step" }
}
# The parent has been detached; allow time for any output it might
# generate to arrive, so that output doesn't get confused with
# any expected debugger output from a subsequent testpoint.
#
exec sleep 1
# Explicitly kill this child, or a subsequent rerun actually runs
# the exec'd child, not the original program...
send_gdb "kill\n"
gdb_expect {
-re ".*Kill the program being debugged.*y or n. $" {
send_gdb "y\n"
send_gdb "file $binfile\n"
gdb_expect {
-re ".*Load new symbol table from.*y or n. $" {
send_gdb "y\n"
gdb_expect {
-re "Reading symbols from.*$gdb_prompt $" {}
timeout { fail "loading symbols (timeout)"; return }
}
}
-re ".*gdb_prompt $" {}
timeout { fail "loading symbols (timeout)"; return }
}
}
-re ".*$gdb_prompt $" {}
timeout { fail "killing inferior (timeout)" ; return }
}
}
proc tcatch_vfork_then_parent_follow {} {
global gdb_prompt
global srcfile
send_gdb "set follow parent\n"
gdb_expect {
-re "$gdb_prompt $" {pass "set follow parent, tcatch vfork"}
timeout {fail "set follow parent, tcatch vfork"}
}
send_gdb "tcatch vfork\n"
gdb_expect {
-re "Catchpoint .*(vfork).*$gdb_prompt $"\
{pass "vfork parent follow, set tcatch vfork"}
-re "$gdb_prompt $" {fail "vfork parent follow, set tcatch vfork"}
timeout {fail "(timeout) vfork parent follow, set tcatch vfork"}
}
send_gdb "continue\n"
# HP-UX 10.20 seems to stop you in "vfork", while more recent HP-UXs
# stop you in "_vfork".
gdb_expect {
-re "0x\[0-9a-fA-F\]*.*vfork.*$gdb_prompt "\
{pass "vfork parent follow, tcatch vfork"}
-re "0x\[0-9a-fA-F\]*.*_vfork.*$gdb_prompt "\
{pass "vfork parent follow, tcatch vfork"}
-re "$gdb_prompt $" {fail "vfork parent follow, tcatch vfork"}
timeout {fail "(timeout) vfork parent follow, tcatch vfork"}
}
send_gdb "finish\n"
gdb_expect {
-re "Run till exit from.*vfork.*0x\[0-9a-fA-F\]* in main .* at .*${srcfile}:12.*$gdb_prompt "\
{pass "vfork parent follow, finish after tcatch vfork"}
-re "$gdb_prompt $" {fail "vfork parent follow, finish after tcatch vfork"}
timeout {fail "(timeout) vfork parent follow, finish after tcatch vfork" }
}
# The child has been detached; allow time for any output it might
# generate to arrive, so that output doesn't get confused with
# any expected debugger output from a subsequent testpoint.
#
exec sleep 1
}
proc tcatch_vfork_then_child_follow {} {
global gdb_prompt
global srcfile2
send_gdb "set follow child\n"
gdb_expect {
-re "$gdb_prompt $" {pass "set follow child, tcatch vfork"}
timeout {fail "set follow child, tcatch vfork"}
}
send_gdb "tcatch vfork\n"
gdb_expect {
-re "Catchpoint .*(vfork).*$gdb_prompt $"\
{pass "vfork child follow, set tcatch vfork"}
-re "$gdb_prompt $" {fail "vfork child follow, set tcatch vfork"}
timeout {fail "(timeout) vfork child follow, set tcatch vfork"}
}
send_gdb "continue\n"
# HP-UX 10.20 seems to stop you in "vfork", while more recent HP-UXs
# stop you in "_vfork".
gdb_expect {
-re "0x\[0-9a-fA-F\]*.*vfork.*$gdb_prompt "\
{pass "vfork child follow, tcatch vfork"}
-re "0x\[0-9a-fA-F\]*.*_vfork.*$gdb_prompt "\
{pass "vfork child follow, tcatch vfork"}
-re "$gdb_prompt $" {fail "vfork child follow, tcatch vfork"}
timeout {fail "(timeout) vfork child follow, tcatch vfork"}
}
send_gdb "finish\n"
gdb_expect {
-re "Run till exit from.*vfork.*${srcfile2}:9.*$gdb_prompt "\
{pass "vfork child follow, finish after tcatch vfork"}
-re "$gdb_prompt $" {fail "vfork child follow, finish after tcatch vfork"}
timeout {fail "(timeout) vfork child follow, finish after tcatch vfork" }
}
# The parent has been detached; allow time for any output it might
# generate to arrive, so that output doesn't get confused with
# any expected debugger output from a subsequent testpoint.
#
exec sleep 1
}
proc do_vfork_and_exec_tests {} {
global gdb_prompt
# Try following the parent process by stepping through a call to
# vfork. Do this without catchpoints.
if [runto_main] then { vfork_parent_follow_through_step }
# Try following the parent process by setting a breakpoint on the
# other side of a vfork, and running to that point. Do this
# without catchpoints.
if [runto_main] then { vfork_parent_follow_to_bp }
# Try following the child process by just continuing through the
# vfork, and letting the parent's breakpoint on "main" be auto-
# magically reset in the child.
#
if [runto_main] then { vfork_and_exec_child_follow_to_main_bp }
# Try following the child process by stepping through a call to
# vfork. The child also executes an exec. Since the child cannot
# be debugged until after it has exec'd, and since there's a bp on
# "main" in the parent, and since the bp's for the parent are
# recomputed in the exec'd child, the step through a vfork should
# land us in the "main" for the exec'd child, too.
#
if [runto_main] then { vfork_and_exec_child_follow_through_step }
# Try catching a vfork, and stepping out to the parent.
#
if [runto_main] then { tcatch_vfork_then_parent_follow }
# Try catching a vfork, and stepping out to the child.
#
if [runto_main] then { tcatch_vfork_then_child_follow }
# Test the ability to follow both child and parent of a vfork. Do
# this without catchpoints.
# ??rehrauer: NYI. Will add testpoints here when implemented.
#
# Test the ability to have the debugger ask the user at vfork-time
# whether to follow the parent, child or both. Do this without
# catchpoints.
# ??rehrauer: NYI. Will add testpoints here when implemented.
#
}
# 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 follow the parent or child
# of a Unix vfork() system call. (The child will subsequently
# call a variant of a Unix exec() system call.)
#
do_vfork_and_exec_tests
set timeout $oldtimeout
return 0
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