projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 30852783 UW |
1 | # This testcase is part of GDB, the GNU debugger. |
| 2 | ||
| 3 | # Copyright 2011 Free Software Foundation, Inc. | |
| 4 | ||
| 5 | # This program is free software; you can redistribute it and/or modify | |
| 6 | # it under the terms of the GNU General Public License as published by | |
| 7 | # the Free Software Foundation; either version 3 of the License, or | |
| 8 | # (at your option) any later version. | |
| 9 | # | |
| 10 | # This program is distributed in the hope that it will be useful, | |
| 11 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | # GNU General Public License for more details. | |
| 14 | # | |
| 15 | # You should have received a copy of the GNU General Public License | |
| 16 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 17 | ||
| 18 | set testfile "signest" | |
| 19 | set srcfile ${testfile}.c | |
| 20 | ||
| 21 | if [target_info exists gdb,nosignals] { | |
| 22 | verbose "Skipping ${testfile}.exp because of nosignals." | |
| 23 | return -1 | |
| 24 | } | |
| 25 | ||
| 26 | if [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile} {debug}] { | |
| 27 | untested ${testfile}.exp | |
| 28 | return -1 | |
| 29 | } | |
| 30 | ||
| 31 | if ![runto_main] then { | |
| 32 | untested ${testfile}.exp | |
| 33 | return -1 | |
| 34 | } | |
| 35 | ||
| 36 | # If we can examine what's at memory address 0, it is possible that we | |
| 37 | # could also execute it. This could probably make us run away, | |
| 38 | # executing random code, which could have all sorts of ill effects, | |
| 39 | # especially on targets without an MMU. Don't run the tests in that | |
| 40 | # case. | |
| 41 | ||
| 42 | gdb_test_multiple "x 0" "memory at address 0" { | |
| 43 | -re "0x0:.*Cannot access memory at address 0x0.*$gdb_prompt $" { } | |
| 44 | -re "0x0:.*Error accessing memory address 0x0.*$gdb_prompt $" { } | |
| 45 | -re ".*$gdb_prompt $" { | |
| 46 | untested "Memory at address 0 is possibly executable" | |
| 47 | return -1 | |
| 48 | } | |
| 49 | } | |
| 50 | ||
| 51 | # Run until we hit the SIGSEGV (or SIGBUS on some platforms). | |
| 52 | gdb_test "continue" \ | |
| 53 | ".*Program received signal (SIGBUS|SIGSEGV).*bowler.*" \ | |
| 54 | "continue to fault" | |
| 55 | ||
| 56 | # Insert conditional breakpoint at faulting instruction | |
| 57 | gdb_test "break if 0" ".*" "set conditional breakpoint" | |
| 58 | ||
| 59 | # Set SIGSEGV/SIGBUS to pass+nostop | |
| 60 | gdb_test "handle SIGSEGV nostop print pass" ".*" "pass SIGSEGV" | |
| 61 | gdb_test "handle SIGBUS nostop print pass" ".*" "pass SIGBUS" | |
| 62 | ||
| 63 | # Step off the faulting instruction into the handler, triggering nested faults | |
| 64 | gdb_test "continue" \ | |
| 65 | ".*Program received signal (SIGBUS|SIGSEGV).*Program received signal (SIGBUS|SIGSEGV).*exited normally.*" \ | |
| 66 | "run through nested faults" | |
| 67 |