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jeremybenn |
# Copyright (C) 1997, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see . */
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# This file was written by srikanth (with huge chunks borrowed from old ones)
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#
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# Regression test for
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#
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# CLLbs14756
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#
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# o catch load command does not stop for implicit loads.
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#
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# CLLbs15382
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#
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# o sharedlibrary command ignores its argument and ends
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# up loading every shared library there is ...
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#
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# CLLbs15582
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#
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# o info line non-existent-function dumps core
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# o clear non-existent function dumps core
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# o xbreak non-existent-function dumps core
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#
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# CLLbs15725
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#
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# o gdb prints static and extern variables in shlibs incorrectly.
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#
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# CLLbs16090
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#
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# o deferred breakpoints should kick in for shlibs loaded explicitly
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# with the sharedlibrary command.
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# o GDB confuses export stubs with actual function.
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#
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#
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if $tracelevel {
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strace $tracelevel
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}
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if { [skip_hp_tests] } { continue }
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# are we on a target board
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if ![isnative] {
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return
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}
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# This test is presently only valid on HP-UX, since it requires
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# that we use HP-UX-specific compiler & linker options to build
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# the testcase.
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#
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setup_xfail "*-*-*"
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clear_xfail "hppa*-*-*hpux*"
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set prototypes 0
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set testfile "solib-d"
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set srcfile ${testfile}.c
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set binfile ${objdir}/${subdir}/${testfile}
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set testfile1 ${objdir}/${subdir}/${testfile}1.o
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set testfile2 ${objdir}/${subdir}/${testfile}2.o
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set libfile1 ${objdir}/${subdir}/${testfile}1.sl
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set libfile2 ${objdir}/${subdir}/${testfile}2.sl
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# Create and source the file that provides information about the compiler
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# used to compile the test case.
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if [get_compiler_info ${binfile}] {
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return -1;
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}
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# set up appropriate compile option to recognize long double
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if {$hp_aCC_compiler || $hp_cc_compiler} {
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set picflag "+z"
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set ansiflag "-Ae"
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} else {
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set picflag "-fpic"
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set ansiflag ""
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}
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# Build the shared libraries this test case needs.
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#
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#cd ${subdir}
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if { [gdb_compile "${srcdir}/${subdir}/${testfile}1.c" "${testfile1}" object "{debug additional_flags=${picflag}}"] != "" } {
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perror "Couldn't compile ${testfile}1.c"
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return -1
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}
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if { [gdb_compile "${srcdir}/${subdir}/${testfile}2.c" "${testfile2}" object "{debug additional_flags=${picflag}}"] != ""} {
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perror "Couldn't compile ${testfile}2.c"
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return -1
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}
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remote_exec build "ld -b ${testfile1} -o ${libfile1}"
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remote_exec build "ld -b ${testfile2} -o ${libfile2}"
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# Build the test case
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile} ${libfile1} ${libfile2}" "${binfile}" executable "{debug additional_flags=${ansiflag} -Wl,-aarchive}"] != "" } {
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perror "Couldn't build ${binfile}"
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return -1
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}
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# Start with a fresh gdb
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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# Verify that we can set a generic catchpoint on shlib loads. I.e., that
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# we can catch any shlib load, without specifying the name.
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#
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gdb_test "catch load" "Catchpoint \[0-9\]* .load .*" \
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"set generic catch load"
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# Verify that implicit shlib loads are caught and reported.
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send_gdb "run\n"
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gdb_expect {
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-re ".*solib-d1.*$gdb_prompt $" {
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pass "Catch implicit load at startup"
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}
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-re "Program exited.*$gdb_prompt $" {
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fail "CLLbs14756 || CLLbs16090 came back ???"
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}
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timeout { fail "(timeout) implicit library load" }
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}
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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if ![runto_main] { fail "breakpoint at main did not trigger ?" }
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# verify that we print globals from shlibs correctly.
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gdb_test "p global_from_primary" " = 5678" \
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"print global from shlib (CLLbs15725)"
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gdb_test "p global_from_secondary" " = 9012" \
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"print global from shlib (CLLbs15725)"
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# verify that we print static variables from shlibs correctly.
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if { ![runto function_from_primary] } { return }
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gdb_test "p file_static" " = 1234" "print file static variable (CLLbs15725)"
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if { ![runto function_from_secondary] } { return }
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gdb_test "p local_static" " = 3456" "print local static variable (CLLbs15725)"
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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gdb_test "set auto-solib-add 0" "" "turn off auto shlib debug loading"
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if ![runto_main] {
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perror "C function calling tests suppressed"
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}
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# verify that "clear non-existent-symbol" does not crash
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gdb_test "clear junkfunc" "Location not found.*" \
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"clear non-existent function does not dump core !"
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# verify that "info line non-existent-symbol" does not crash
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gdb_test "info line junkfunc" "Location not found.*" \
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"info line junkfunc does not dump core !"
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# verify that "xbreak non-existent-symbol" does not crash
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gdb_test "xbreak junkfunc" "Function \"junkfunc\" not defined.*" \
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"xbreak junkfunc does not dump core !"
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gdb_test "list function_from_primary" \
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"No line number known for function_from_primary.*" \
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"turning off auto shlib debug loading"
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send_gdb "sharedlibrary solib-d1\n"
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gdb_expect {
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-re "Reading symbols from.*solib-d1.*$gdb_prompt $" {
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pass "loading primary library on demand (1)"
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}
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-re "--Adding symbols for shared library.*solib-d1.*$gdb_prompt $" {
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pass "loading primary library on demand (2)"
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}
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-re "$gdb_prompt $" { fail "loading primary library on demand (3)" }
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timeout { fail "(timeout) loading primary library on demand" }
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}
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# make sure that load above of primary also did not pull in secondary.
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send_gdb "list function_from_secondary\n"
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gdb_expect {
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-re "No symbol.*context.*$gdb_prompt $" {
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pass "loaded only what we needed (1)"
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}
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-re "No line number known for function_from_secondary.*$gdb_prompt $" {
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pass "loaded only what we needed (2)"
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}
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-re ".*9012.*$gdb_prompt $" { fail "Oops ! CLLbs15382 came back ?" }
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timeout { fail "(timeout) printing global" }
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}
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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gdb_test "set auto-solib-add 0" "" "turn off auto shlib debug loading"
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gdb_test "set stop-on-solib-event 1" "" "stop-on-solib-event"
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# verify that we set breakpoint on the function and not the export stub
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# used to be that we set bp on the export stub of _start and thus miss
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# shlib loads in some cases (where the stub exists)
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send_gdb "run\n"
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gdb_expect {
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-re "Stopped due to shared library event.*$gdb_prompt $" {
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pass "stop for shlib event"
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}
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-re "Program exited.*$gdb_prompt $" {
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fail "Bug CLLbs16090 came back ?"
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}
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timeout { fail "(timeout) stop for shlib event " }
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}
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gdb_test "b main" "Breakpoint 1 at.*" "set breakpoint on main"
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gdb_test "set stop-on-solib-event 0" "" "stop-on-solib-event (timeout)"
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# verify that we set breakpoint on the function and not the export stub
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gdb_test "cont" "Breakpoint 1.*main.*" "run to main"
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# On PA64 we read in the unwind info and linker symbol table which lets
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# us set the breakpoint and not defer it.
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send_gdb "b garbage\n"
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gdb_expect {
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-re "Breakpoint.*deferred.*garbage.*library containing.*is loaded.*$gdb_prompt $" {
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pass " set deferred breakpoint (1)"
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}
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-re "Breakpoint 2 at 0x.*$gdb_prompt $" {
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pass " set deferred breakpoint (2)"
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}
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-re "$gdb_prompt $" { fail " set deferred breakpoint (3)" }
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timeout { fail "(timeout) set deferred breakpoint" }
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}
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# make sure that the sharedlibrary command enables any deferred breakpoints
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# that it should.
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send_gdb "sharedlibrary lib\n"
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gdb_expect {
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-re "Reading.*solib-d1.*$gdb_prompt $" {
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pass "load up all shared libs (1)"
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}
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-re "Loading.*dld.sl.*--Adding symbols.*solib-d1.*$gdb_prompt $" {
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pass "load up all shared libs (2)"
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}
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-re "$gdb_prompt $" { fail "load up all libraries" }
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timeout { fail "(timeout) load all libraries " }
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}
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# do we stop at garbage ? If yes ok.
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gdb_test "cont" "Breakpoint.*garbage.*" "deferred breakpoint enabled"
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gdb_exit
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return 0
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