projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 88b9d363 | 1 | # Copyright (C) 2018-2022 Free Software Foundation, Inc. |
| 7ca18ed6 EBM |
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 | # This file is part of the gdb testsuite. | |
| 17 | ||
| 18 | # Test access to special purpose registers PPR and DSCR. The test | |
| 19 | # inferior writes to these registers, we check that GDB reads the same | |
| 20 | # values, then write to the registers trough GDB, step once, and check | |
| 21 | # again if we read back the same values. | |
| 22 | ||
| 23 | if {![istarget "powerpc*-*-linux*"]} then { | |
| 24 | verbose "Skipping PowerPC test for PPR and DSCR registers." | |
| 25 | return | |
| 26 | } | |
| 27 | ||
| 28 | standard_testfile .c | |
| 29 | ||
| 30 | if {[build_executable "compile" $binfile $srcfile {debug}] == -1} { | |
| 31 | return | |
| 32 | } | |
| 33 | ||
| 34 | proc check_register_access { regname } { | |
| 35 | global gdb_prompt | |
| 36 | ||
| 37 | set test "$regname register access" | |
| 38 | gdb_test_multiple "info reg $regname" "$test" { | |
| 39 | -re "Invalid register.*\r\n$gdb_prompt $" { | |
| 40 | unsupported "$test" | |
| 41 | return 0 | |
| 42 | } | |
| 43 | -re "\r\n$regname.*\r\n$gdb_prompt $" { | |
| 44 | pass "$test" | |
| 45 | return 1 | |
| 46 | } | |
| 47 | } | |
| 48 | return 0 | |
| 49 | } | |
| 50 | ||
| 51 | # Do one pass to check if the instructions in our test programs are | |
| 52 | # available to this processor (e.g. mtspr 3, RS for accessing DSCR). | |
| 53 | proc ppr_dscr_available {} { | |
| 54 | global gdb_prompt | |
| 55 | global inferior_exited_re | |
| 56 | ||
| 57 | set test "PPR/DSCR available to inferior" | |
| 58 | gdb_test_multiple "continue" "" { | |
| 59 | -re "Illegal instruction.*\r\n$gdb_prompt $" { | |
| 60 | unsupported "$test" | |
| 61 | return 0 | |
| 62 | } | |
| 63 | -re "$inferior_exited_re normally.*$gdb_prompt $" { | |
| 64 | pass "$test" | |
| 65 | return 1 | |
| 66 | } | |
| 67 | } | |
| 68 | return 0 | |
| 69 | } | |
| 70 | ||
| 71 | with_test_prefix "check PPR/DSCR access" { | |
| 72 | clean_restart $binfile | |
| 73 | ||
| 74 | if ![runto_main] { | |
| 75 | return | |
| 76 | } | |
| 77 | ||
| 78 | if {![check_register_access "ppr"]} { | |
| 79 | return | |
| 80 | } | |
| 81 | ||
| 82 | if {![check_register_access "dscr"]} { | |
| 83 | return | |
| 84 | } | |
| 85 | ||
| 86 | if {![ppr_dscr_available]} { | |
| 87 | return | |
| 88 | } | |
| 89 | } | |
| 90 | ||
| 91 | # Now do the actual test | |
| 92 | clean_restart $binfile | |
| 93 | ||
| 94 | if ![runto_main] { | |
| 95 | return | |
| 96 | } | |
| 97 | ||
| 98 | gdb_breakpoint [gdb_get_line_number "marker"] | |
| 99 | ||
| 100 | gdb_continue_to_breakpoint "continue to marker" | |
| 101 | ||
| 102 | # At the breakpoint the inferior should have set the | |
| 103 | # registers to these expected values. | |
| 104 | ||
| 105 | with_test_prefix "before write" { | |
| 106 | gdb_test "info reg dscr" "dscr.*0x0*20\[ \t\]+.*" | |
| 107 | gdb_test "info reg ppr" "ppr.*0x0*8000000000000\[ \t\]+.*" | |
| 108 | } | |
| 109 | ||
| 110 | # Set Store Stream Enable in DSCR and set PPR to the medium-low | |
| 111 | # priority. | |
| 112 | gdb_test_no_output "set \$dscr = 0x8" | |
| 113 | gdb_test_no_output "set \$ppr = 0xC000000000000" | |
| 114 | ||
| 115 | gdb_test "stepi" "asm.*" | |
| 116 | ||
| 117 | with_test_prefix "after write" { | |
| 118 | gdb_test "info reg dscr" "dscr.*0x0*8+\[ \t\]+.*" | |
| 119 | gdb_test "info reg ppr" "ppr.*0x0*\[cC\]000000000000\[ \t\]+.*" | |
| 120 | } |