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# Copyright 1998-2021 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/>.
# Build programs in PIE mode, to reproduce PR 21555.
foreach_with_prefix opts { "" "pie" } {
# build the first test case
set testfile1 "reread1"
set srcfile1 ${testfile1}.c
# Cygwin needs $EXEEXT.
set binfile1 [standard_output_file ${testfile1}$EXEEXT]
set testfile1_opt [list debug nowarnings $opts]
if { [gdb_compile "${srcdir}/${subdir}/${srcfile1}" "${binfile1}" \
executable ${testfile1_opt}] != "" } {
untested "failed to compile first testcase"
return -1
}
# build the second test case
set testfile2 "reread2"
set srcfile2 ${testfile2}.c
set binfile2 [standard_output_file ${testfile2}$EXEEXT]
set testfile2_opt1 [list debug nowarnings $opts]
set testfile2_op2 [list debug nowarnings $opts \
"additional_flags=-DNO_SECTIONS"]
if { [gdb_compile "${srcdir}/${subdir}/${srcfile2}" "${binfile2}" \
executable ${testfile2_opt1}] != ""
&& [gdb_compile "${srcdir}/${subdir}/${srcfile2}" "${binfile2}" \
executable ${testfile2_opt2}] != ""} {
untested "failed to compile second testcase"
return -1
}
# Start with a fresh gdb.
set testfile "reread"
set binfile [standard_output_file ${testfile}$EXEEXT]
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
# Load the first executable.
gdb_rename_execfile ${binfile1} ${binfile}
gdb_load ${binfile}
set readnow_p [readnow ${binfile}]
# Set a breakpoint at foo
gdb_test "break foo" \
"Breakpoint.*at.* file .*$srcfile1, line 14.*" \
"breakpoint foo in first file"
# Run, should see "Breakpoint 1, foo () at hello1.c:14"
gdb_run_cmd
gdb_test "" "Breakpoint.* foo .* at .*$srcfile1:14.*" "run to foo()"
# Restore first executable to its original name, and move
# second executable into its place. Ensure that the new
# executable is at least a second newer than the old.
gdb_rename_execfile ${binfile} ${binfile1}
gdb_rename_execfile ${binfile2} ${binfile}
gdb_test "shell sleep 1" ".*" ""
gdb_touch_execfile ${binfile}
# Run a second time; GDB should detect that the executable has changed
# and reset the breakpoints correctly.
# Should see "Breakpoint 1, foo () at reread2.c:9"
set test "run to foo() second time"
if [is_remote target] {
unsupported $test
} else {
gdb_run_cmd
if { $readnow_p } {
setup_kfail "gdb/26800" *-*-*
}
gdb_test "" "Breakpoint.* foo .* at .*:9.*" $test
}
### Second pass: verify that GDB checks the executable file's
### timestamp when the program is *restarted*, not just when it exits.
if [is_remote target] {
unsupported "second pass: GDB should check for changes before running"
} else {
# Put the older executable back in place.
gdb_rename_execfile ${binfile} ${binfile2}
gdb_rename_execfile ${binfile1} ${binfile}
# Restart GDB entirely.
clean_restart ${binfile}
# Set a breakpoint on foo and run to it.
gdb_test "break foo" \
"Breakpoint.*at.* file .*$srcfile1, line 14.*" \
"second pass: breakpoint foo in first file"
gdb_run_cmd
gdb_test "" "Breakpoint.* foo .* at .*$srcfile1:14.*" \
"second pass: run to foo()"
# This time, let the program run to completion. If GDB checks the
# executable file's timestamp now, it won't notice any change.
gdb_continue_to_end "second pass"
# Now move the newer executable into place, and re-run. GDB
# should still notice that the executable file has changed,
# and still re-set the breakpoint appropriately.
gdb_rename_execfile ${binfile} ${binfile1}
gdb_rename_execfile ${binfile2} ${binfile}
gdb_run_cmd
if { $readnow_p } {
setup_kfail "gdb/26800" *-*-*
}
gdb_test "" "Breakpoint.* foo .* at .*:9.*" \
"second pass: run to foo() second time"
}
}
# End of tests.
return 0
|
