projects / thirdparty / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| b811d2c2 | 1 | # Copyright (C) 2012-2020 Free Software Foundation, Inc. |
| f94363d7 AP |
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 | |
| 7785b880 | 5 | # the Free Software Foundation; either version 3 of the License, or |
| f94363d7 AP |
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 | |
| 7785b880 | 14 | # along with this program; if not, see <http://www.gnu.org/licenses/>. |
| f94363d7 AP |
15 | |
| 16 | # Test single-step on bbit. | |
| 17 | ||
| 18 | if ![istarget "*octeon*"] { | |
| 19 | return -1 | |
| 20 | } | |
| 21 | ||
| 22 | proc current_insn {} { | |
| 23 | global gdb_prompt | |
| 24 | ||
| 25 | send_gdb "x/i \$pc\n" | |
| 26 | gdb_expect { | |
| 27 | -re ".*?:\\s+\(.*?\)\\s*$gdb_prompt $" { | |
| 28 | set insn $expect_out(1,string) | |
| 29 | return $insn | |
| 30 | } | |
| 31 | } | |
| 32 | return "" | |
| 33 | } | |
| 34 | ||
| 35 | proc single_step {} { | |
| 36 | global gdb_prompt | |
| 37 | ||
| 38 | send_gdb "si\n" | |
| 39 | gdb_expect { | |
| 40 | -re "$gdb_prompt \$" { | |
| 41 | return 1 | |
| 42 | } | |
| 43 | } | |
| ae59b1da | 44 | return 0 |
| f94363d7 AP |
45 | } |
| 46 | ||
| 47 | proc single_step_until { match } { | |
| 48 | global timeout | |
| 49 | ||
| 50 | set insn [current_insn] | |
| 51 | set start [timestamp] | |
| 52 | while { $insn != "" && [timestamp] - $start < 3*$timeout } { | |
| 53 | if [regexp $match $insn] { | |
| 54 | return 1 | |
| 55 | } | |
| 56 | if {![single_step]} { | |
| 57 | return 0 | |
| 58 | } | |
| 59 | set insn [current_insn] | |
| 60 | } | |
| ae59b1da | 61 | return 0 |
| f94363d7 AP |
62 | } |
| 63 | ||
| 64 | proc test_bbit { name taken } { | |
| 65 | if {![single_step_until "bbit"]} { | |
| 66 | fail "$name single-step until bbit" | |
| 67 | return | |
| 68 | } | |
| 69 | pass "$name single-step until bbit" | |
| 70 | gdb_test "si" "" "$name single-step on bbit" | |
| 71 | if [regexp "li\\s+\[sv\]0,$taken" [current_insn]] { | |
| 72 | pass "$name check insn after bbit" | |
| 73 | } else { | |
| 74 | send_log "expected: li\\s+\[sv\]0,$taken found [current_insn]\n" | |
| 75 | fail "$name check insn after bbit" | |
| 76 | } | |
| 77 | } | |
| 78 | ||
| 79 | set testfile "mips-octeon-bbit" | |
| 80 | set srcfile ${testfile}.c | |
| 81 | set binfile ${objdir}/${subdir}/${testfile} | |
| 82 | ||
| 83 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable \ | |
| 84 | {debug nowarnings}] != "" } { | |
| 85 | fail "compilation" | |
| 86 | return | |
| 87 | } | |
| 88 | ||
| 89 | pass "compilation" | |
| 90 | ||
| 91 | gdb_exit | |
| 92 | gdb_start | |
| 93 | gdb_reinitialize_dir $srcdir/$subdir | |
| 94 | gdb_load ${binfile} | |
| 95 | # Native needs run. | |
| 96 | runto_main | |
| 97 | ||
| 98 | set tests "" | |
| 99 | foreach n [list "0_10" "0_36" "1_20" "1_49"] { | |
| 100 | lappend tests "bbit_is_taken_$n" | |
| 101 | } | |
| 102 | foreach func $tests { | |
| 103 | gdb_test "break $func" "Breakpoint.*at.*" "set breakpoint on $func" | |
| 104 | } | |
| 105 | ||
| 106 | foreach func $tests { | |
| 107 | gdb_test "continue" "Continuing.*Breakpoint.*$func.*" "hit $func first" | |
| 108 | test_bbit "$func branch taken" 1 | |
| 109 | gdb_test "continue" "Continuing.*Breakpoint.*$func.*" "hit $func second" | |
| 110 | test_bbit "$func branch not taken" 0 | |
| 111 | } |