# Copyright 2002 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 2 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, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. # This file was written by Jason Molenda (jmolenda@apple.com) # These were written when we were having a problem with gcc not handling # instance variables for an object whose debug info resides in a shared # library. These tests never did reproduce the problem, but they do some # useful shlib handling things, so they remain. # There are two versions of the executable - ivars-static and ivars-dynamic. # ivars-static links against the shared library at link-time (ld), so gdb # can viably get the dynamic info before it starts execution. Despite the # name, nothing is "statically linked" as you'd know it on an ELF system; # it refers to the static link edtor, aka ld. The shlib is named on the # final gcc command line, so ld knows about it and records information # about it in the executable. # ivars-dynamic links against the shared library at run-time, so gdb has # to notice the shared library load message from the dynamic run-time linker # and insert the breakpoint correctly. The shared library was unmentioned # at static link time (ld), so there's no information about it in the # executable. A better name would be "ivars-loaded-by-hand". if $tracelevel then { strace $tracelevel } set timeout 120 set prms_id 0 set bug_id 0 if [istarget "powerpc64-apple-darwin*"] { verbose "Skipping Objective-C tests on 64-bit PowerPC." return } set libfile "libivars" set libbinfile ${objdir}/${subdir}/${libfile}.dylib set staticfile "ivars-static" set staticsrcfile ${staticfile}.m set staticbinfile ${objdir}/${subdir}/${staticfile} set dynamicfile "ivars-dynamic" set dynamicsrcfile ${dynamicfile}.m set dynamicbinfile ${objdir}/${subdir}/${dynamicfile} proc get_libsystem_load_addr { } { global decimal global hex global gdb_prompt global libsystem_load_addr set libsystem_load_addr -1 gdb_exit gdb_start gdb_load "/bin/echo" send_gdb "info sharedlibrary\n" gdb_expect { -re ".*$decimal libSystem...dylib - - *init Y Y .*libSystem...dylib at ($hex).*$gdb_prompt $" { set libsystem_load_addr $expect_out(1,string) } -re "$gdb_prompt $" { } timeout { } } return 0 } proc build_library { args } { global srcdir global subdir global libfile global libbinfile set more_opts [lindex $args 0] set additional_flags "additional_flags=-dynamiclib $more_opts -framework Foundation" if { [gdb_compile "${srcdir}/${subdir}/${libfile}.m" "${libbinfile}" executable [list debug $additional_flags]] != "" } { gdb_suppress_entire_file "Testcase library compile failed, so all tests in this file will automatically fail." } return 0 } proc test_run { args } { # Start with a fresh gdb global srcdir global subdir global staticbinfile global dynamicbinfile global gdb_prompt global hex set run_name [lindex $args 0] gdb_exit gdb_start gdb_reinitialize_dir $srcdir/$subdir gdb_load ${staticbinfile} gdb_test "show lang" "The current source language is \"auto; currently objective-c\"." "obj-c lang detection ($run_name) (static prog)" gdb_test "info sharedlibrary" ".*libivars.dylib.*init Y \[BY\].*libivars.dylib.*" "info sharedlibrary pre-start ($run_name) (static prog)" gdb_test "future-break randomFunc" ".*Breakpoint 1.*" "Set object breakpoint ($run_name) (static prog)" send_gdb "run\n" set stopped "no" gdb_expect { -re ".*Breakpoint 1, -\\\[MyClass randomFunc\\\].*libivars.m.*$gdb_prompt $" { pass "continue to obj bp ($run_name) (static prog)" set stopped "yes" } -re ".*Program exited.*" { fail "continue to obj bp: Program exited ($run_name) (static prog)" set stopped "no" } -re ".*internal-error: assertion failure in function.*Quit this debugging session. .y or n. $" { fail "continue to obj bp: assertion error! ($run_name) (static prog)" set stopped "no" } -re ".*$gdb_prompt $" { fail "continue to obj bp: Program exited ($run_name) (static prog)" set stopped "no" } timeout { fail "(timeout) continue to obj bp ($run_name) (static prog)" set stopped "yes" } } if {$stopped == "yes"} { gdb_test "show lang" "The current source language is \"auto; currently objective-c\"." "obj-c lang detection at breakpoint (static prog)" gdb_test "po object" "hi there" "print ivar object #1 ($run_name) (static prog)" gdb_test "po _object2" "hi there" "print ivar object #2 ($run_name) (static prog)" gdb_test "po self->object" "hi there" "print ivar object #3 ($run_name) (static prog)" gdb_test "po self->_object2" "hi there" "print ivar object #4 ($run_name) (static prog)" gdb_test "info sharedlibrary" ".*Foundation.*" "quick post-run info shlib check to help debugging ($run_name) (static prog)" } gdb_exit gdb_start gdb_reinitialize_dir $srcdir/$subdir gdb_load ${dynamicbinfile} gdb_test "show lang" "The current source language is \"auto; currently objective-c\"." "obj-c lang detection pre-run (dynamic prog)" gdb_test "info sharedlibrary" ".*" gdb_test "future-break randomFunc" ".*Breakpoint 1.*" "Set object breakpoint ($run_name) (dynamic prog)" send_gdb "run\n" set stopped "no" gdb_expect { -re ".*Breakpoint 1, -\\\[MyClass randomFunc\\\].*libivars.m.*$gdb_prompt $" { pass "continue to obj bp ($run_name) (dynamic prog)" set stopped "yes" } -re ".*Breakpoint 2, -\\\[MyClass randomFunc\\\].*libivars.m.*$gdb_prompt $" { # The breakpoint should be #1, as we assigned it originally. fail "continue to obj bp ($run_name) (dynamic prog) (wrong breakpoint number)" set stopped "yes" } -re ".*Program exited.*" { fail "continue to obj bp: Program exited ($run_name) (dynamic prog)" set stopped "no" } -re ".*internal-error: assertion failure in function.*Quit this debugging session. .y or n. $" { fail "continue to obj bp: assertion error! ($run_name) (dynamic prog)" set stopped "no" } timeout { fail "(timeout) continue to obj bp ($run_name) (dynamic prog)" set stopped "yes" } } if {$stopped == "yes"} { gdb_test "show lang" "The current source language is \"auto; currently objective-c\"." "obj-c lang detection at breakpoint (dynamic prog)" gdb_test "po object" "hi there" "print ivar object #1 ($run_name) (dynamic prog)" gdb_test "po _object2" "hi there" "print ivar object #2 ($run_name) (dynamic prog)" gdb_test "po self->object" "hi there" "print ivar object #3 ($run_name) (dynamic prog)" gdb_test "po self->_object2" "hi there" "print ivar object #4 ($run_name) (dynamic prog)" gdb_test "info sharedlibrary" ".*Foundation.*" "quick post-run info shlib check to help debugging ($run_name) (dynamic_prog)" } gdb_exit return 0 } build_library "" # Build ivars-static set additional_flags "additional_flags=-framework Foundation -L$objdir/$subdir -livars" if { [gdb_compile "${srcdir}/${subdir}/$staticsrcfile" "${staticbinfile}" executable [list debug $additional_flags]] != "" } { gdb_suppress_entire_file "Testcase executable compile failed, so all tests in this file will automatically fail." } # build ivars-dynamic set additional_flags "additional_flags=-framework Foundation -DLIBNAME=\"${libbinfile}\"" if { [gdb_compile "${srcdir}/${subdir}/$dynamicsrcfile" "${dynamicbinfile}" executable [list debug $additional_flags]] != "" } { gdb_suppress_entire_file "Testcase executable compile failed, so all tests in this file will automatically fail." } test_run "dylib no addr specified" build_library "-seg1addr 0x0" test_run "dylib slide from 0x0" get_libsystem_load_addr build_library "-seg1addr $libsystem_load_addr" test_run "dylib slide from $libsystem_load_addr" build_library "-seg1addr 0x500000" test_run "dylib maybe without a slide" return 0