92 lines
2.4 KiB
Text
92 lines
2.4 KiB
Text
# Copyright (C) 2015-2016 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/>.
|
|
|
|
# Test that GDB can step past a breakpoint even if GDB doesn't have
|
|
# symbols for the main binary. PR gdb/13858.
|
|
|
|
standard_testfile start.c
|
|
|
|
if { [build_executable "failed to build" ${testfile} $srcfile] } {
|
|
return -1
|
|
}
|
|
|
|
# Get the current PC. MSG is used as test message.
|
|
|
|
proc get_pc { msg } {
|
|
global hex gdb_prompt
|
|
|
|
set addr ""
|
|
gdb_test_multiple "p /x \$pc" "$msg" {
|
|
-re " = ($hex).*$gdb_prompt $" {
|
|
set addr $expect_out(1,string)
|
|
pass "$msg"
|
|
}
|
|
}
|
|
|
|
return $addr
|
|
}
|
|
|
|
# Test stepping past a breakpoint with no symbols. DISPLACED is one
|
|
# of the "set displaced-stepping" options. If GDB can't find where to
|
|
# put the scratch pad, GDB should be able to fall back to stepping
|
|
# past the breakpoint using an in-line step-over.
|
|
|
|
proc test_step_over { displaced } {
|
|
global hex
|
|
global binfile
|
|
|
|
clean_restart $binfile
|
|
|
|
if ![runto_main] {
|
|
fail "couldn't run to main"
|
|
untested "stepping over breakpoint with displaced=$displaced"
|
|
return -1
|
|
}
|
|
|
|
delete_breakpoints
|
|
|
|
set msg "purging symbols"
|
|
gdb_test_multiple "file" "$msg" {
|
|
-re "Are you sure you want to change the file.*y or n. $" {
|
|
send_gdb "y\n"
|
|
exp_continue
|
|
}
|
|
-re "Discard symbol table.*y or n. $" {
|
|
gdb_test "y" "No symbol file now." "$msg"
|
|
}
|
|
}
|
|
|
|
set before_addr [get_pc "get before PC"]
|
|
|
|
gdb_test "break *\$pc" "Breakpoint .* at $hex"
|
|
|
|
gdb_test_no_output "set displaced-stepping $displaced"
|
|
|
|
gdb_test "stepi" "$hex in \?\? .*"
|
|
|
|
set after_addr [get_pc "get after PC"]
|
|
|
|
gdb_assert {$before_addr != $after_addr} "advanced"
|
|
}
|
|
|
|
foreach displaced { "off" "on" "auto" } {
|
|
if { $displaced != "off" && ![support_displaced_stepping] } {
|
|
continue
|
|
}
|
|
|
|
with_test_prefix "displaced=$displaced" {
|
|
test_step_over $displaced
|
|
}
|
|
}
|