20c6f1e176
I find some gdb.python tests fail on arm-none-eabi target, because the tests assume that memory on address 0x is inaccessible. Some tests (in gdb.base) are aware of this, so do a "x 0" check first. However, the code is copy-n-paste. This patch is to move the "x 0" check to a procedure in lib/gdb.exp, and get needed tests call it. The original code matches pattern "0x0:\[ \t\]*Error accessing memory address 0x0\r\n$gdb_prompt $", but I remove it from the new proc is_address_zero_readable, because GDB doesn't emit such message any more. gdb/testsuite: 2014-08-09 Yao Qi <yao@codesourcery.com> * gdb.base/display.exp: Invoke is_address_zero_readable. * gdb.guile/scm-value.exp (test_value_in_inferior): Likewise. * gdb.python/py-value.exp (test_value_in_inferior): Likewise. * gdb.base/hbreak-unmapped.exp: Return if is_address_zero_readable returns true. * gdb.base/signest.exp: Likewise. * gdb.base/signull.exp: Likewise. * gdb.base/sigbpt.exp: Likewise. * gdb.guile/scm-disasm.exp: Do the test if is_address_zero_readable returns false. * gdb.guile/scm-pretty-print.exp (run_lang_tests): Likewise. * gdb.python/py-arch.exp: Likewise. * gdb.python/py-prettyprint.exp (run_lang_tests): Likewise. * lib/gdb.exp (is_address_zero_readable): New proc.
62 lines
2.1 KiB
Text
62 lines
2.1 KiB
Text
# This testcase is part of GDB, the GNU debugger.
|
|
|
|
# Copyright 2011-2014 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/>.
|
|
|
|
standard_testfile
|
|
|
|
if [target_info exists gdb,nosignals] {
|
|
verbose "Skipping ${testfile}.exp because of nosignals."
|
|
return -1
|
|
}
|
|
|
|
if [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile} {debug}] {
|
|
untested ${testfile}.exp
|
|
return -1
|
|
}
|
|
|
|
if ![runto_main] then {
|
|
untested ${testfile}.exp
|
|
return -1
|
|
}
|
|
|
|
# If we can examine what's at memory address 0, it is possible that we
|
|
# could also execute it. This could probably make us run away,
|
|
# executing random code, which could have all sorts of ill effects,
|
|
# especially on targets without an MMU. Don't run the tests in that
|
|
# case.
|
|
|
|
if { [is_address_zero_readable] } {
|
|
untested "Memory at address 0 is possibly executable"
|
|
return -1
|
|
}
|
|
|
|
# Run until we hit the SIGSEGV (or SIGBUS on some platforms).
|
|
gdb_test "continue" \
|
|
".*Program received signal (SIGBUS|SIGSEGV).*bowler.*" \
|
|
"continue to fault"
|
|
|
|
# Insert conditional breakpoint at faulting instruction
|
|
gdb_test "break if 0" ".*" "set conditional breakpoint"
|
|
|
|
# Set SIGSEGV/SIGBUS to pass+nostop
|
|
gdb_test "handle SIGSEGV nostop print pass" ".*" "pass SIGSEGV"
|
|
gdb_test "handle SIGBUS nostop print pass" ".*" "pass SIGBUS"
|
|
|
|
# Step off the faulting instruction into the handler, triggering nested faults
|
|
gdb_test "continue" \
|
|
".*Program received signal (SIGBUS|SIGSEGV).*Program received signal (SIGBUS|SIGSEGV).*exited normally.*" \
|
|
"run through nested faults"
|
|
|