122 lines
3.3 KiB
Text
122 lines
3.3 KiB
Text
# Copyright 2010-2016 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 <http://www.gnu.org/licenses/>.
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# The problem was due to amd64_skip_prologue attempting to access inferior
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# memory before the PIE (Position Independent Executable) gets relocated.
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global inferior_spawn_id
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global gdb_spawn_id
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if ![istarget *-linux*] {
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continue
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}
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# In remote mode we cannot use the 'set args' command, and this
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# test requires it.
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if { [target_info exists gdb_protocol] } then {
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if { [target_info gdb_protocol] == "remote" } then {
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continue
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}
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}
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standard_testfile .c
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set executable1 ${testfile}1
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set executable2 ${testfile}2
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set binfile1 ${binfile}1
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set binfile2 ${binfile}2
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set binfile2_test_msg OBJDIR/${subdir}/${executable2}
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# Use conditional compilation according to `BIN' as GDB remembers the source
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# file name of the breakpoint.
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set opts [list debug additional_flags=-fPIE ldflags=-pie]
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if {[build_executable ${testfile}.exp $executable1 $srcfile [concat $opts {additional_flags=-DBIN=1}]] == -1
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|| [build_executable ${testfile}.exp $executable2 $srcfile [concat $opts {additional_flags=-DBIN=2}]] == -1} {
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return -1
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}
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clean_restart ${executable1}
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gdb_test_no_output "set args ${binfile2}" "set args ${binfile2_test_msg}"
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if ![runto_main] {
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return -1
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}
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# Do not stop on `main' after re-exec.
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delete_breakpoints
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gdb_breakpoint "pie_execl_marker"
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gdb_test "info breakpoints" ".*" ""
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set addr1 ""
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set test "pie_execl_marker address first"
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gdb_test_multiple "p/x &pie_execl_marker" $test {
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-re " = (0x\[0-9a-f\]+)\r\n$gdb_prompt $" {
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set addr1 $expect_out(1,string)
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pass $test
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}
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}
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verbose -log "addr1 is $addr1"
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set test "continue"
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set matches_found 0
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gdb_test_multiple $test $test {
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-re "Error in re-setting breakpoint" {
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fail $test
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}
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-re "Cannot access memory" {
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fail $test
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}
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-i "$inferior_spawn_id" -re "pie-execl: re-exec" {
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# output from inferior
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incr matches_found
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if { $matches_found == 2 } {
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pass $test
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} else {
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exp_continue
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}
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}
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-i "$gdb_spawn_id"
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-re "executing new program.*\r\nBreakpoint \[0-9\]+,\[^\r\n\]* pie_execl_marker .*\r\n$gdb_prompt $" {
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# output from gdb
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incr matches_found
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if { $matches_found == 2 } {
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pass $test
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} else {
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exp_continue
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}
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}
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}
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gdb_test "info breakpoints" ".*" ""
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set addr2 ""
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set test "pie_execl_marker address second"
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gdb_test_multiple "p/x &pie_execl_marker" $test {
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-re " = (0x\[0-9a-f\]+)\r\n$gdb_prompt $" {
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set addr2 $expect_out(1,string)
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pass $test
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}
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}
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verbose -log "addr2 is $addr2"
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# Ensure we cannot get a false PASS and the inferior has really changed.
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set test "pie_execl_marker address has changed"
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if [string equal $addr1 $addr2] {
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fail $test
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} else {
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pass $test
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}
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