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untested followed by return combination. * gdb.arch/altivec-regs.exp: Likewise. * gdb.arch/e500-abi.exp: Likewise. * gdb.arch/e500-regs.exp: Likewise. * gdb.arch/gdb1291.exp: Likewise. * gdb.arch/gdb1431.exp: Likewise. * gdb.arch/gdb1558.exp: Likewise. * gdb.arch/i386-prologue.exp: Likewise. * gdb.arch/i386-unwind.exp: Likewise. * gdb.asm/asm-source.exp: Likewise. * gdb.base/a2-run.exp: Likewise. * gdb.base/advance.exp: Likewise. * gdb.base/all-bin.exp: Likewise. * gdb.base/annota1.exp: Likewise. * gdb.base/annota3.exp: Likewise. * gdb.base/args.exp: Likewise. * gdb.base/arithmet.exp: Likewise. * gdb.base/assign.exp: Likewise. * gdb.base/async.exp: Likewise. * gdb.base/attach.exp: Likewise. * gdb.base/bang.exp: Likewise. * gdb.base/bigcore.exp: Likewise. * gdb.base/bitfields.exp: Likewise. * gdb.base/bitfields2.exp: Likewise. * gdb.base/break.exp: Likewise. * gdb.base/call-sc.exp: Likewise. * gdb.base/call-strs.exp: Likewise. * gdb.base/callfuncs.exp: Likewise. * gdb.base/checkpoint.exp: Likewise. * gdb.base/chng-syms.exp: Likewise. * gdb.base/code-expr.exp: Likewise. * gdb.base/commands.exp: Likewise. * gdb.base/completion.exp: Likewise. * gdb.base/cond-expr.exp: Likewise. * gdb.base/condbreak.exp: Likewise. * gdb.base/consecutive.exp: Likewise. * gdb.base/constvars.exp: Likewise. * gdb.base/corefile.exp: Likewise. * gdb.base/cvexpr.exp: Likewise. * gdb.base/dbx.exp: Likewise. * gdb.base/define.exp: Likewise. * gdb.base/detach.exp: Likewise. * gdb.base/display.exp: Likewise. * gdb.base/dump.exp: Likewise. * gdb.base/ena-dis-br.exp: Likewise. * gdb.base/ending-run.exp: Likewise. * gdb.base/environ.exp: Likewise. * gdb.base/eval-skip.exp: Likewise. * gdb.base/exprs.exp: Likewise. * gdb.base/fileio.exp: Likewise. * gdb.base/finish.exp: Likewise. * gdb.base/float.exp: Likewise. * gdb.base/foll-exec.exp: Likewise. * gdb.base/foll-fork.exp: Likewise. * gdb.base/foll-vfork.exp: Likewise. * gdb.base/freebpcmd.exp: Likewise. * gdb.base/funcargs.exp: Likewise. * gdb.base/gcore.exp: Likewise. * gdb.base/gdb1090.exp: Likewise. * gdb.base/gdb1250.exp: Likewise. * gdb.base/huge.exp: Likewise. * gdb.base/info-proc.exp: Likewise. * gdb.base/interrupt.exp: Likewise. * gdb.base/jump.exp: Likewise. * gdb.base/langs.exp: Likewise. * gdb.base/lineinc.exp: Likewise. * gdb.base/list.exp: Likewise. * gdb.base/logical.exp: Likewise. * gdb.base/long_long.exp: Likewise. * gdb.base/macscp.exp: Likewise. * gdb.base/maint.exp: Likewise. * gdb.base/mips_pro.exp: Likewise. * gdb.base/miscexprs.exp: Likewise. * gdb.base/multi-forks.exp: Likewise. * gdb.base/opaque.exp: Likewise. * gdb.base/overlays.exp: Likewise. * gdb.base/pc-fp.exp: Likewise. * gdb.base/pointers.exp: Likewise. * gdb.base/printcmds.exp: Likewise. * gdb.base/psymtab.exp: Likewise. * gdb.base/ptype.exp: Likewise. * gdb.base/recurse.exp: Likewise. * gdb.base/relational.exp: Likewise. * gdb.base/relocate.exp: Likewise. * gdb.base/remote.exp: Likewise. * gdb.base/reread.exp: Likewise. * gdb.base/restore.exp: Likewise. * gdb.base/return.exp: Likewise. * gdb.base/return2.exp: Likewise. * gdb.base/scope.exp: Likewise. * gdb.base/sect-cmd.exp: Likewise. * gdb.base/sep.exp: Likewise. * gdb.base/sepdebug.exp: Likewise. * gdb.base/setshow.exp: Likewise. * gdb.base/setvar.exp: Likewise. * gdb.base/sigall.exp: Likewise. * gdb.base/sigbpt.exp: Likewise. * gdb.base/signals.exp: Likewise. * gdb.base/signull.exp: Likewise. * gdb.base/sizeof.exp: Likewise. * gdb.base/solib.exp: Likewise. * gdb.base/step-line.exp: Likewise. * gdb.base/step-test.exp: Likewise. * gdb.base/structs.exp: Likewise. * gdb.base/structs2.exp: Likewise. * gdb.base/term.exp: Likewise. * gdb.base/twice.exp: Likewise. * gdb.base/until.exp: Likewise. * gdb.base/varargs.exp: Likewise. * gdb.base/volatile.exp: Likewise. * gdb.base/watchpoint.exp: Likewise. * gdb.base/whatis-exp.exp: Likewise. * gdb.base/whatis.exp: Likewise. * gdb.cp/ambiguous.exp: Likewise. * gdb.cp/annota2.exp: Likewise. * gdb.cp/annota3.exp: Likewise. * gdb.cp/bool.exp: Likewise. * gdb.cp/breakpoint.exp: Likewise. * gdb.cp/casts.exp: Likewise. * gdb.cp/class2.exp: Likewise. * gdb.cp/classes.exp: Likewise. * gdb.cp/cplusfuncs.exp: Likewise. * gdb.cp/ctti.exp: Likewise. * gdb.cp/derivation.exp: Likewise. * gdb.cp/exception.exp: Likewise. * gdb.cp/gdb1355.exp: Likewise. * gdb.cp/hang.exp: Likewise. * gdb.cp/inherit.exp: Likewise. * gdb.cp/local.exp: Likewise. * gdb.cp/m-data.exp: Likewise. * gdb.cp/m-static.exp: Likewise. * gdb.cp/member-ptr.exp: Likewise. * gdb.cp/method.exp: Likewise. * gdb.cp/misc.exp: Likewise. * gdb.cp/namespace.exp: Likewise. * gdb.cp/overload.exp: Likewise. * gdb.cp/ovldbreak.exp: Likewise. * gdb.cp/pr-1023.exp: Likewise. * gdb.cp/pr-1210.exp: Likewise. * gdb.cp/pr-574.exp: Likewise. * gdb.cp/printmethod.exp: Likewise. * gdb.cp/psmang.exp: Likewise. * gdb.cp/ref-params.exp: Likewise. * gdb.cp/ref-types.exp: Likewise. * gdb.cp/rtti.exp: Likewise. * gdb.cp/templates.exp: Likewise. * gdb.cp/try_catch.exp: Likewise. * gdb.cp/userdef.exp: Likewise. * gdb.cp/virtfunc.exp: Likewise. * gdb.disasm/am33.exp: Likewise. * gdb.disasm/h8300s.exp: Likewise. * gdb.disasm/mn10300.exp: Likewise. * gdb.disasm/sh3.exp: Likewise. * gdb.disasm/t01_mov.exp: Likewise. * gdb.disasm/t02_mova.exp: Likewise. * gdb.disasm/t03_add.exp: Likewise. * gdb.disasm/t04_sub.exp: Likewise. * gdb.disasm/t05_cmp.exp: Likewise. * gdb.disasm/t06_ari2.exp: Likewise. * gdb.disasm/t07_ari3.exp: Likewise. * gdb.disasm/t08_or.exp: Likewise. * gdb.disasm/t09_xor.exp: Likewise. * gdb.disasm/t10_and.exp: Likewise. * gdb.disasm/t11_logs.exp: Likewise. * gdb.disasm/t12_bit.exp: Likewise. * gdb.disasm/t13_otr.exp: Likewise. * gdb.hp/gdb.aCC/optimize.exp: Likewise. * gdb.hp/gdb.aCC/watch-cmd.exp: Likewise. * gdb.hp/gdb.base-hp/callfwmall.exp: Likewise. * gdb.hp/gdb.base-hp/dollar.exp: Likewise. * gdb.hp/gdb.base-hp/hwwatchbus.exp: Likewise. * gdb.hp/gdb.base-hp/pxdb.exp: Likewise. * gdb.hp/gdb.base-hp/reg-pa64.exp: Likewise. * gdb.hp/gdb.base-hp/reg.exp: Likewise. * gdb.hp/gdb.base-hp/sized-enum.exp: Likewise. * gdb.hp/gdb.compat/xdb1.exp: Likewise. * gdb.hp/gdb.compat/xdb3.exp: Likewise. * gdb.hp/gdb.objdbg/objdbg01.exp: Likewise. * gdb.hp/gdb.objdbg/objdbg02.exp: Likewise. * gdb.hp/gdb.objdbg/objdbg03.exp: Likewise. * gdb.hp/gdb.objdbg/objdbg04.exp: Likewise. * gdb.mi/gdb701.exp: Likewise. * gdb.mi/gdb792.exp: Likewise. * gdb.mi/mi-basics.exp: Likewise. * gdb.mi/mi-break.exp: Likewise. * gdb.mi/mi-cli.exp: Likewise. * gdb.mi/mi-console.exp: Likewise. * gdb.mi/mi-disassemble.exp: Likewise. * gdb.mi/mi-eval.exp: Likewise. * gdb.mi/mi-file.exp: Likewise. * gdb.mi/mi-read-memory.exp: Likewise. * gdb.mi/mi-regs.exp: Likewise. * gdb.mi/mi-return.exp: Likewise. * gdb.mi/mi-simplerun.exp: Likewise. * gdb.mi/mi-stack.exp: Likewise. * gdb.mi/mi-stepi.exp: Likewise. * gdb.mi/mi-syn-frame.exp: Likewise. * gdb.mi/mi-until.exp: Likewise. * gdb.mi/mi-var-block.exp: Likewise. * gdb.mi/mi-var-child.exp: Likewise. * gdb.mi/mi-var-cmd.exp: Likewise. * gdb.mi/mi-var-display.exp: Likewise. * gdb.mi/mi-watch.exp: Likewise. * gdb.mi/mi2-basics.exp: Likewise. * gdb.mi/mi2-break.exp: Likewise. * gdb.mi/mi2-cli.exp: Likewise. * gdb.mi/mi2-console.exp: Likewise. * gdb.mi/mi2-disassemble.exp: Likewise. * gdb.mi/mi2-eval.exp: Likewise. * gdb.mi/mi2-file.exp: Likewise. * gdb.mi/mi2-read-memory.exp: Likewise. * gdb.mi/mi2-regs.exp: Likewise. * gdb.mi/mi2-return.exp: Likewise. * gdb.mi/mi2-simplerun.exp: Likewise. * gdb.mi/mi2-stack.exp: Likewise. * gdb.mi/mi2-stepi.exp: Likewise. * gdb.mi/mi2-syn-frame.exp: Likewise. * gdb.mi/mi2-until.exp: Likewise. * gdb.mi/mi2-var-block.exp: Likewise. * gdb.mi/mi2-var-child.exp: Likewise. * gdb.mi/mi2-var-cmd.exp: Likewise. * gdb.mi/mi2-var-display.exp: Likewise. * gdb.mi/mi2-watch.exp: Likewise. * gdb.stabs/exclfwd.exp: Likewise. * gdb.stabs/weird.exp: Likewise. * gdb.threads/gcore-thread.exp: Likewise. * gdb.trace/actions.exp: Likewise. * gdb.trace/backtrace.exp: Likewise. * gdb.trace/circ.exp: Likewise. * gdb.trace/collection.exp: Likewise. * gdb.trace/deltrace.exp: Likewise. * gdb.trace/infotrace.exp: Likewise. * gdb.trace/limits.exp: Likewise. * gdb.trace/packetlen.exp: Likewise. * gdb.trace/passc-dyn.exp: Likewise. * gdb.trace/passcount.exp: Likewise. * gdb.trace/report.exp: Likewise. * gdb.trace/save-trace.exp: Likewise. * gdb.trace/tfind.exp: Likewise. * gdb.trace/tracecmd.exp: Likewise. * gdb.trace/while-dyn.exp: Likewise. * gdb.trace/while-stepping.exp: Likewise.
128 lines
4.3 KiB
Text
128 lines
4.3 KiB
Text
# This testcase is part of GDB, the GNU debugger.
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# Copyright 2004, 2005 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 2 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, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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# Check that GDB can trigger and backtrace SIGSEGV signal stacks
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# caused by both accessing (data) and executing (code) at address
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# zero.
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# On function descriptor architectures, a zero descriptor, instead of
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# a NULL pointer, is used. That way the NULL code test always
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# contains a zero code reference.
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# For recovery, sigjmp/longjmp are used.
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# This also tests backtrace/gdb1476.
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if [target_info exists gdb,nosignals] {
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verbose "Skipping signals.exp because of nosignals."
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continue
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}
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if $tracelevel {
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strace $tracelevel
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}
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set prms_id 0
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set bug_id 0
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set testfile "signull"
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set srcfile ${testfile}.c
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set binfile ${objdir}/${subdir}/${testfile}
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
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untested signull.exp
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return -1
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}
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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#
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# Run to `main' where we begin our tests.
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#
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if ![runto_main] then {
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gdb_suppress_tests
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}
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# If we can examine what's at memory address 0, it is possible that we
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# could also execute it. This could probably make us run away,
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# executing random code, which could have all sorts of ill effects,
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# especially on targets without an MMU. Don't run the tests in that
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# case.
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send_gdb "x 0\n"
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gdb_expect {
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-re "0x0:.*Cannot access memory at address 0x0.*$gdb_prompt $" { }
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-re "0x0:.*Error accessing memory address 0x0.*$gdb_prompt $" { }
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-re ".*$gdb_prompt $" {
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untested "Memory at address 0 is possibly executable"
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return
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}
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}
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# If an attempt to call a NULL pointer leaves the inferior in main,
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# then function pointers are descriptors, probe this and remember the
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# result.
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gdb_test "set test = code_entry_point" "" "set for function pointer probe"
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set test "probe function pointer"
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set function_pointer code_entry_point
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gdb_test_multiple "continue" "$test" {
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-re "Program received signal SIGSEGV.*bowler .*$gdb_prompt $" {
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set function_pointer code_descriptor
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pass "$test (function descriptor)"
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}
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-re "Program received signal SIGSEGV.*0.*$gdb_prompt $" {
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pass "$test (function entry-point)"
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}
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}
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# Re-start from scratch, breakpoint the bowler so that control is
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# regained after each test, and run up to that.
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rerun_to_main
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gdb_test "break bowler"
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gdb_test "break keeper"
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# By default Stop:Yes Print:Yes Pass:Yes
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gdb_test "handle SIGSEGV" "SIGSEGV.*Yes.*Yes.*Yes.*Segmentation fault"
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# For the given signal type, check that: the SIGSEGV occures; a
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# backtrace from the SEGV works; the sigsegv is delivered; a backtrace
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# through the SEGV works.
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proc test_segv { name tag bt_from_segv bt_from_keeper } {
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gdb_test continue "Breakpoint.* bowler.*" "${name}; start with the bowler"
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# NB: Don't use $tag in the testname - changes across systems.
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gdb_test "set test = $tag" "" "${name}; select the pointer type"
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gdb_test continue "Program received signal SIGSEGV.*" \
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"${name}; take the SIGSEGV"
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gdb_test backtrace $bt_from_segv "${name}; backtrace from SIGSEGV"
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gdb_test continue "Breakpoint.* keeper.*" "${name}; continue to the keeper"
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gdb_test backtrace $bt_from_keeper "${name}; backtrace from keeper through SIGSEGV"
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}
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test_segv "data read" data_read \
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{#0 .* bowler .*#1 .* main .*} \
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{#0 .* keeper .*#1 .* handler .*#2 .* bowler .*#3 .* main .*}
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test_segv "data write" data_write \
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{#0 .* bowler .*#1 .* main .*} \
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{#0 .* keeper .*#1 .* handler .*#2 .* bowler .*#3 .* main .*}
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test_segv code $function_pointer \
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{#0 .* 0x0+ .*#1 .* bowler .*#2 .* main .*} \
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{#0 .* keeper .*#1 .* handler .*#2 .* 0x0+ .*#3 .* bowler .*#4 .* main .*}
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