1 # Copyright 2010-2024 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 3 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program. If not, see <http://www.gnu.org/licenses/>.
16 # The problem was due to amd64_skip_prologue attempting to access inferior
17 # memory before the PIE (Position Independent Executable) gets relocated.
19 global inferior_spawn_id
22 require {istarget *-linux*}
24 # In remote mode we cannot use the 'set args' command, and this
26 if {[target_info exists gdb_protocol]} {
27 if {[target_info gdb_protocol] == "remote"} {
33 set executable1 ${testfile}1
34 set executable2 ${testfile}2
35 set binfile1 ${binfile}1
36 set binfile2 ${binfile}2
37 set binfile2_test_msg OBJDIR/${subdir}/${executable2}
39 # Use conditional compilation according to `BIN' as GDB remembers the source
40 # file name of the breakpoint.
42 set opts [list debug pie]
43 if {[build_executable ${testfile}.exp $executable1 $srcfile [concat $opts {additional_flags=-DBIN=1}]] == -1
44 || [build_executable ${testfile}.exp $executable2 $srcfile [concat $opts {additional_flags=-DBIN=2}]] == -1} {
48 clean_restart ${executable1}
50 gdb_test_no_output "set args ${binfile2}" "set args ${binfile2_test_msg}"
56 # Do not stop on `main' after re-exec.
59 gdb_breakpoint "pie_execl_marker"
60 gdb_test "info breakpoints" "" "info breakpoints first"
63 set test "pie_execl_marker address first"
64 gdb_test_multiple "p/x &pie_execl_marker" $test {
65 -re " = (0x\[0-9a-f\]+)\r\n$gdb_prompt $" {
66 set addr1 $expect_out(1,string)
70 verbose -log "addr1 is $addr1"
74 gdb_test_multiple $test $test {
75 -re "Error in re-setting breakpoint" {
78 -re "Cannot access memory" {
81 -i "$inferior_spawn_id" -re "pie-execl: re-exec" {
82 # output from inferior
84 if { $matches_found == 2 } {
91 -re "executing new program.*\r\nBreakpoint \[0-9\]+,\[^\r\n\]* pie_execl_marker .*\r\n$gdb_prompt $" {
94 if { $matches_found == 2 } {
102 gdb_test "info breakpoints" "" "info breakpoints second"
105 set test "pie_execl_marker address second"
106 gdb_test_multiple "p/x &pie_execl_marker" $test {
107 -re " = (0x\[0-9a-f\]+)\r\n$gdb_prompt $" {
108 set addr2 $expect_out(1,string)
112 verbose -log "addr2 is $addr2"
114 # Ensure we cannot get a false PASS and the inferior has really changed.
115 set test "pie_execl_marker address has changed"
116 if [string equal $addr1 $addr2] {