121 lines
3.7 KiB
Plaintext
121 lines
3.7 KiB
Plaintext
# Copyright 2014-2015 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 trying to inserting a hw breakpoint in a shared library
|
|
# when the target doesn't support hw breakpoints doesn't silently
|
|
# error out without informing the user.
|
|
|
|
if {[skip_shlib_tests]} {
|
|
return -1
|
|
}
|
|
|
|
set main_src hbreak-in-shr-unsupported.c
|
|
set lib_src hbreak-in-shr-unsupported-shr.c
|
|
standard_testfile ${main_src} ${lib_src}
|
|
set lib_basename hbreak-in-shr-unsupported-shr.so
|
|
set lib_so [standard_output_file ${lib_basename}]
|
|
|
|
set lib_opts "debug"
|
|
set exec_opts [list debug shlib=${lib_so}]
|
|
|
|
if [get_compiler_info] {
|
|
return -1
|
|
}
|
|
|
|
if { [gdb_compile_shlib ${srcdir}/${subdir}/${lib_src} ${lib_so} $lib_opts] != ""
|
|
|| [gdb_compile ${srcdir}/${subdir}/${main_src} ${binfile} executable $exec_opts] != ""} {
|
|
untested "Could not compile ${subdir}/$lib_src or ${subdir}/$srcfile."
|
|
return -1
|
|
}
|
|
|
|
clean_restart $binfile
|
|
gdb_load_shlibs $lib_so
|
|
|
|
if ![runto_main] then {
|
|
fail "Can't run to main"
|
|
return -1
|
|
}
|
|
|
|
set is_target_remote [gdb_is_target_remote]
|
|
|
|
# Get main breakpoint out of the way.
|
|
delete_breakpoints
|
|
|
|
# Easier to test if GDB inserts breakpoints immediately.
|
|
gdb_test_no_output "set breakpoint always-inserted on"
|
|
|
|
# Force-disable Z1 packets, in case the target actually supports
|
|
# these.
|
|
if {$is_target_remote} {
|
|
gdb_test_no_output "set remote Z-packet off"
|
|
}
|
|
|
|
# Probe for hw breakpoints support. With Z packets disabled, this
|
|
# should always fail with remote targets. For other targets, with no
|
|
# way to force-disable hw breakpoints support, best we can do is skip
|
|
# the remainder of the test if hardware breakpoint insertion in a
|
|
# function in the main executable succeeds.
|
|
set cant_insert_hbreak 0
|
|
set supports_hbreak 0
|
|
set test "probe hbreak support"
|
|
gdb_test_multiple "hbreak main" $test {
|
|
-re "No hardware breakpoint support in the target.*$gdb_prompt $" {
|
|
pass $test
|
|
}
|
|
-re "Hardware breakpoints used exceeds limit.*$gdb_prompt $" {
|
|
pass $test
|
|
}
|
|
-re "Cannot insert hardware breakpoint.*$gdb_prompt $" {
|
|
set cant_insert_hbreak 1
|
|
set supports_hbreak 1
|
|
pass $test
|
|
}
|
|
-re "Hardware assisted breakpoint.*at.* file .*$srcfile, line.*$gdb_prompt $" {
|
|
set supports_hbreak 1
|
|
if {$is_target_remote} {
|
|
# Z-packets have been force-disabled, so this shouldn't
|
|
# happen.
|
|
fail $test
|
|
} else {
|
|
pass $test
|
|
}
|
|
}
|
|
}
|
|
|
|
if {!$supports_hbreak} {
|
|
unsupported "no hbreak support"
|
|
return
|
|
}
|
|
|
|
if {!$cant_insert_hbreak} {
|
|
unsupported "can't disable hw breakpoint support"
|
|
return
|
|
}
|
|
|
|
# Get previous hw breakpoint out of the way.
|
|
delete_breakpoints
|
|
|
|
# Without target support, this should always complain. GDB used to
|
|
# suppress the error if the breakpoint was set in a shared library.
|
|
# While that makes sense for software breakpoints (the memory might be
|
|
# unmapped), it doesn't for hardware breakpoints, as those by
|
|
# definition are implemented using a mechanism that is not dependent
|
|
# on being able to modify the target's memory.
|
|
gdb_test "hbreak shrfunc" "Cannot insert hardware breakpoint.*" \
|
|
"hbreak shrfunc complains"
|
|
|
|
gdb_test "info break" "hw breakpoint.*y.*$hex.*in shrfunc at.*" \
|
|
"breakpoint not pending"
|