derek.holloway
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58 lines
2.0 KiB
Plaintext
58 lines
2.0 KiB
Plaintext
# This testcase is part of GDB, the GNU debugger.
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# Copyright 2011-2024 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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standard_testfile
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require {!target_info exists gdb,nosignals}
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if [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} {debug}] {
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return -1
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}
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if {![runto_main]} {
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return -1
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}
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# If we can examine what's at memory address 0, it is possible that we
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# could also execute it. This could probably make us run away,
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# executing random code, which could have all sorts of ill effects,
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# especially on targets without an MMU. Don't run the tests in that
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# case.
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if { [is_address_zero_readable] } {
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untested "memory at address 0 is possibly executable"
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return -1
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}
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# Run until we hit the SIGSEGV (or SIGBUS on some platforms).
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gdb_test "continue" \
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".*Program received signal (SIGBUS|SIGSEGV).*bowler.*" \
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"continue to fault"
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# Insert conditional breakpoint at faulting instruction
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gdb_test "break if 0" ".*" "set conditional breakpoint"
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# Set SIGSEGV/SIGBUS to pass+nostop
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gdb_test "handle SIGSEGV nostop print pass" ".*" "pass SIGSEGV"
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gdb_test "handle SIGBUS nostop print pass" ".*" "pass SIGBUS"
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# Step off the faulting instruction into the handler, triggering nested faults
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gdb_test "continue" \
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".*Program received signal (SIGBUS|SIGSEGV).*Program received signal (SIGBUS|SIGSEGV).*exited normally.*" \
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"run through nested faults"
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