projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 88b9d363 | 1 | # Copyright 2018-2022 Free Software Foundation, Inc. |
| 1d509aa6 MM |
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 | standard_testfile | |
| 17 | ||
| 18 | set cflags "-mindirect-branch=thunk -mfunction-return=thunk" | |
| 19 | if { [prepare_for_testing "failed to prepare" $testfile $srcfile \ | |
| 20 | [list debug "additional_flags=$cflags"]] } { | |
| 21 | return -1 | |
| 22 | } | |
| 23 | ||
| 24 | if { ![runto_main] } { | |
| 25 | untested "failed to run to main" | |
| 26 | return -1 | |
| 27 | } | |
| 28 | ||
| 29 | # Do repeated instruction steps in order to reach TARGET from CURRENT | |
| 30 | # | |
| 31 | # CURRENT is a string matching the current location | |
| 32 | # TARGET is a string matching the target location | |
| 33 | # TEST is the test name | |
| 34 | # | |
| 35 | # The function issues repeated "stepi" commands as long as the location | |
| 36 | # matches CURRENT up to a maximum of 100 steps. | |
| 37 | # | |
| 38 | # TEST passes if the resulting location matches TARGET and fails | |
| 39 | # otherwise. | |
| 40 | # | |
| 41 | proc stepi_until { current target test } { | |
| 42 | global gdb_prompt | |
| 43 | ||
| 44 | set count 0 | |
| 45 | gdb_test_multiple "stepi" "$test" { | |
| 46 | -re "$current.*$gdb_prompt $" { | |
| 47 | incr count | |
| 48 | if { $count < 100 } { | |
| 49 | send_gdb "stepi\n" | |
| 50 | exp_continue | |
| 51 | } else { | |
| 52 | fail "$test" | |
| 53 | } | |
| 54 | } | |
| 55 | -re "$target.*$gdb_prompt $" { | |
| 56 | pass "$test" | |
| 57 | } | |
| 58 | } | |
| 59 | } | |
| 60 | ||
| 61 | # Normal stepping steps through all thunks. | |
| 62 | gdb_test "step" "thrice\.2.*" "step into thrice" | |
| 63 | gdb_test "next" "thrice\.3.*" "step through thunks and over inc" | |
| 64 | gdb_test "step" "inc\.2.*" "step through call thunk into inc" | |
| 65 | gdb_test "step" "inc\.3.*" "step inside inc" | |
| 66 | gdb_test "step" "thrice\.4.*" "step through return thunk back into thrice" | |
| 67 | ||
| 68 | # We can use instruction stepping to step into thunks. | |
| 69 | stepi_until "thrice" "indirect_thunk" "stepi into call thunk" | |
| 70 | stepi_until "indirect_thunk" "inc." "stepi out of call thunk into inc" | |
| 71 | stepi_until "inc" "return_thunk" "stepi into return thunk" | |
| 72 | stepi_until "return_thunk" "thrice" \ | |
| 73 | "stepi out of return thunk back into thrice" |