projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 33b4777c MM |
1 | # This testcase is part of GDB, the GNU debugger. |
| 2 | # | |
| 3 | # Copyright 2016 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 | # | |
| 19 | # This is a variant of tailcall.exp where the entire trace contains only tail | |
| 20 | # calls. This used to cause a crash in get_frame_type. | |
| 21 | # | |
| 22 | ||
| 23 | # check for btrace support | |
| 24 | if { [skip_btrace_tests] } { return -1 } | |
| 25 | ||
| 26 | # This test requires the compiler to generate a tail call. To guarantee that | |
| 27 | # we always get one, we use an assembly source file. | |
| 28 | # | |
| 29 | # We use different assembly sources based on the target architecture. | |
| 30 | # | |
| 31 | # Luckily, they are similar enough that a single test script can handle | |
| 32 | # both. | |
| 33 | set opts {} | |
| 34 | if [info exists COMPILE] { | |
| 35 | # make check RUNTESTFLAGS="gdb.btrace/tailcall-only.exp COMPILE=1" | |
| 36 | standard_testfile tailcall-only.c | |
| 37 | lappend opts debug optimize=-O2 | |
| 7674d381 | 38 | } elseif {[istarget "x86_64-*-*"] && [is_lp64_target]} { |
| 33b4777c | 39 | standard_testfile x86_64-tailcall-only.S |
| 7674d381 | 40 | } elseif {[istarget "i?86-*-*"] || [istarget "x86_64-*-*"]} { |
| 33b4777c MM |
41 | standard_testfile i686-tailcall-only.S |
| 42 | } else { | |
| 43 | verbose "Skipping ${testfile}." | |
| 44 | return | |
| 45 | } | |
| 46 | ||
| 47 | if [prepare_for_testing tailcall-only.exp $testfile $srcfile $opts] { | |
| 48 | return -1 | |
| 49 | } | |
| 50 | if ![runto_main] { | |
| 51 | return -1 | |
| 52 | } | |
| 53 | ||
| 54 | # we want to see the full trace for this test | |
| 55 | gdb_test_no_output "set record function-call-history-size 0" | |
| 56 | ||
| 57 | # trace foo | |
| 58 | gdb_test "step" ".*" "prepare for recording" | |
| 59 | gdb_test_no_output "record btrace" | |
| 60 | gdb_test "stepi 4" ".*" "record branch trace" | |
| 61 | ||
| 62 | # for debugging | |
| 63 | gdb_test "info record" ".*" | |
| 64 | ||
| 65 | # show the branch trace with calls indented | |
| 66 | gdb_test "record function-call-history /c 1" [multi_line \ | |
| 67 | "1\tfoo" \ | |
| 68 | "2\t foo_1" \ | |
| 69 | "3\t bar" \ | |
| 70 | "4\t bar_1" | |
| 71 | ] "function-call-history" | |
| 72 | ||
| 73 | # We can step | |
| 74 | gdb_test "record goto begin" ".*foo.*" | |
| 75 | gdb_test "stepi" ".*foo_1.*" "step into foo_1" | |
| 76 | gdb_test "step" ".*bar.*" "step into bar" | |
| 77 | gdb_test "stepi" ".*bar_1.*" "step into bar_1" | |
| 78 | ||
| 79 | # We can neither finish nor return. | |
| 80 | gdb_test "finish" "Cannot find the caller frame.*" | |
| 81 | gdb_test_multiple "return" "return" { | |
| 82 | -re "Make .* return now.*y or n. $" { | |
| 83 | send_gdb "y\n" | |
| 84 | exp_continue | |
| 85 | } | |
| 86 | -re "Cannot find the caller frame.*$gdb_prompt $" { | |
| 87 | pass "return" | |
| 88 | } | |
| 89 | } | |
| 90 | ||
| 91 | # But we can reverse-finish | |
| 92 | gdb_test "reverse-finish" ".*bar.*" | |
| 93 | gdb_test "reverse-step" ".*foo_1.*" | |
| 94 | ||
| 95 | # Info frame isn't useful but doesn't crash as it used to. | |
| 96 | gdb_test "up" ".*foo.*" | |
| 97 | gdb_test "info frame" ".*" |