projects / thirdparty / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 618f726f | 1 | # Copyright (C) 2014-2016 Free Software Foundation, Inc. |
| 938f0e2f AB |
2 | # |
| 3 | # This program is free software; you can redistribute it and/or modify | |
| 4 | # it under the terms of the GNU General Public License as published by | |
| 5 | # the Free Software Foundation; either version 3 of the License, or | |
| 6 | # (at your option) any later version. | |
| 7 | # | |
| 8 | # This program is distributed in the hope that it will be useful, | |
| 9 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 11 | # GNU General Public License for more details. | |
| 12 | # | |
| 13 | # You should have received a copy of the GNU General Public License | |
| 14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 15 | ||
| 16 | # In this test we're looking at how gdb handles backtraces and | |
| 17 | # investigating the stack depth when confronted with an "invalid" stack, | |
| 18 | # that is a stack where the first few frames are normal, and then there's a | |
| 19 | # frame where the stack in unreadable. | |
| 20 | # | |
| 21 | # One interesting bug that has been observed is that gdb will sometime | |
| 22 | # exhibit different behaviour the first time a stack command is run | |
| 23 | # compared to the second (and later) times a command is run. This is | |
| 24 | # because the first time a command is run gdb actually tries to figure out | |
| 25 | # the answer, while the second (and later) times gdb relies on the answer | |
| 26 | # cached from the first time. As a result in this test each command is | |
| 27 | # run twice, and we restart gdb before testing each different command to | |
| 28 | # ensure that nothing is being cached. | |
| 29 | ||
| 30 | set opts {} | |
| 31 | standard_testfile .c | |
| 32 | ||
| 33 | if { ![istarget x86_64-*-* ] || ![is_lp64_target] } { | |
| 34 | verbose "Skipping ${testfile}." | |
| 35 | return | |
| 36 | } | |
| 37 | if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile} $opts] } { | |
| 38 | return -1 | |
| 39 | } | |
| 40 | ||
| 41 | if ![runto breakpt] { | |
| 42 | return -1 | |
| 43 | } | |
| 44 | ||
| 45 | # Use 'bt no-filters' here as the python filters will raise their own | |
| 46 | # error during initialisation, the no-filters case is simpler. | |
| 47 | ||
| 53e8a631 | 48 | gdb_test "bt no-filters" "^bt no-filters\r\n#0 +$hex in func2 \\(\\)\r\nBacktrace stopped: Cannot access memory at address 0x\[0-9a-f\]+" \ |
| 938f0e2f AB |
49 | "first backtrace, with error message" |
| 50 | ||
| 53e8a631 AB |
51 | gdb_test "bt no-filters" "^bt no-filters\r\n#0 +$hex in func2 \\(\\)\r\nBacktrace stopped: Cannot access memory at address 0x\[0-9a-f\]+" \ |
| 52 | "second backtrace, with error message" | |
| 938f0e2f AB |
53 | |
| 54 | clean_restart ${binfile} | |
| 55 | ||
| 56 | if ![runto breakpt] { | |
| 57 | return -1 | |
| 58 | } | |
| 59 | ||
| 53e8a631 AB |
60 | gdb_test "interpreter-exec mi \"-stack-info-depth\"" \ |
| 61 | "\\^done,depth=\"1\"" \ | |
| 62 | "check mi -stack-info-depth command, first time" | |
| 938f0e2f AB |
63 | |
| 64 | gdb_test "interpreter-exec mi \"-stack-info-depth\"" \ | |
| 65 | "\\^done,depth=\"1\"" \ | |
| 66 | "check mi -stack-info-depth command, second time" | |
| 67 | ||
| 68 | clean_restart ${binfile} | |
| 69 | ||
| 70 | if ![runto breakpt] { | |
| 71 | return -1 | |
| 72 | } | |
| 73 | ||
| 53e8a631 AB |
74 | gdb_test "interpreter-exec mi \"-stack-list-frames\"" \ |
| 75 | "\\^done,stack=\\\[frame=\{level=\"0\",addr=\"$hex\",func=\"func2\"\}\\\]" \ | |
| 76 | "check mi -stack-list-frames command, first time" | |
| 938f0e2f AB |
77 | |
| 78 | gdb_test "interpreter-exec mi \"-stack-list-frames\"" \ | |
| 79 | "\\^done,stack=\\\[frame=\{level=\"0\",addr=\"$hex\",func=\"func2\"\}\\\]" \ | |
| 80 | "check mi -stack-list-frames command, second time" |