| 1 | # Copyright 2010 Free Software Foundation, Inc. |
| 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 | # Test some DWARF piece operators. |
| 17 | |
| 18 | # This test can only be run on targets which support DWARF-2 and use gas. |
| 19 | # For now pick a sampling of likely targets. |
| 20 | if {![istarget *-*-linux*] |
| 21 | && ![istarget *-*-gnu*] |
| 22 | && ![istarget *-*-elf*] |
| 23 | && ![istarget *-*-openbsd*] |
| 24 | && ![istarget arm-*-eabi*] |
| 25 | && ![istarget powerpc-*-eabi*]} { |
| 26 | return 0 |
| 27 | } |
| 28 | # This test can only be run on x86 targets. |
| 29 | if {![istarget i?86-*]} { |
| 30 | return 0 |
| 31 | } |
| 32 | |
| 33 | set testfile "pieces" |
| 34 | set srcfile ${testfile}.S |
| 35 | set csrcfile ${testfile}.c |
| 36 | set binfile ${objdir}/${subdir}/${testfile}.x |
| 37 | |
| 38 | if {[prepare_for_testing ${testfile}.exp ${testfile}.x $srcfile]} { |
| 39 | return -1 |
| 40 | } |
| 41 | |
| 42 | if ![runto_main] { |
| 43 | return -1 |
| 44 | } |
| 45 | |
| 46 | # Function f1 tests a particular gdb bug involving DW_OP_piece. |
| 47 | proc pieces_test_f1 {} { |
| 48 | global csrcfile |
| 49 | set line [gdb_get_line_number "f1 breakpoint" $csrcfile] |
| 50 | gdb_test "break pieces.c:$line" "Breakpoint 2.*" \ |
| 51 | "set f1 breakpoint for pieces" |
| 52 | gdb_continue_to_breakpoint "continue to f1 breakpoint for pieces" |
| 53 | gdb_test "print a" " = {i = 4, j = 14}" "print a in pieces:f1" |
| 54 | gdb_test "print a.j" " = 14" "print a.j in pieces:f1" |
| 55 | } |
| 56 | |
| 57 | # Function f2 tests for a bug when indexing into an array created |
| 58 | # using DW_OP_piece. |
| 59 | proc pieces_test_f2 {} { |
| 60 | global csrcfile |
| 61 | set line [gdb_get_line_number "f2 breakpoint" $csrcfile] |
| 62 | gdb_test "break pieces.c:$line" "Breakpoint 3.*" \ |
| 63 | "set f2 breakpoint for pieces" |
| 64 | gdb_continue_to_breakpoint "continue to f2 breakpoint for pieces" |
| 65 | gdb_test "print a" " = .4, 14." "print a in pieces:f2" |
| 66 | gdb_test "print a\[0\]" " = 4" "print a\[0\] in pieces:f2" |
| 67 | gdb_test "print a\[1\]" " = 14" "print a\[1\] in pieces:f2" |
| 68 | } |
| 69 | |
| 70 | # Function f3 tests DW_OP_bit_piece. |
| 71 | proc pieces_test_f3 {} { |
| 72 | global csrcfile |
| 73 | set line [gdb_get_line_number "f3 breakpoint" $csrcfile] |
| 74 | gdb_test "break pieces.c:$line" "Breakpoint 4.*" \ |
| 75 | "set f3 breakpoint for pieces" |
| 76 | gdb_continue_to_breakpoint "continue to f3 breakpoint for pieces" |
| 77 | gdb_test "print a.i" " = 4" "print a.i in pieces:f3" |
| 78 | gdb_test "print a.j" " = 14" "print a.j in pieces:f3" |
| 79 | # Right now gdb says "value optimized out" here, but that is wrong. |
| 80 | setup_kfail "exp/11636" *-*-* |
| 81 | gdb_test "print a.i = 7" " = 7" "set a.i in pieces:f3" |
| 82 | gdb_test "print a.i" " = 7" "print new a.i in pieces:f3" |
| 83 | } |
| 84 | |
| 85 | # Function f6 tests for an empty DW_OP_piece. |
| 86 | proc pieces_test_f6 {} { |
| 87 | global csrcfile |
| 88 | set line [gdb_get_line_number "f6 breakpoint" $csrcfile] |
| 89 | gdb_test "break pieces.c:$line" "Breakpoint 5.*" \ |
| 90 | "set f6 breakpoint for pieces" |
| 91 | gdb_continue_to_breakpoint "continue to f6 breakpoint for pieces" |
| 92 | gdb_test "print a" \ |
| 93 | "warning: bits .* in computed object were.* = {i = 7, j = 8, q = 0}" \ |
| 94 | "print a with optimized out piece" |
| 95 | # Note: no warning for this case. |
| 96 | gdb_test_multiple "print a.i" \ |
| 97 | "print a.i with optimized out piece" { |
| 98 | -re "warning: some bits in computed object" { |
| 99 | fail "print a.i with optimized out piece" |
| 100 | } |
| 101 | -re " = 7" { |
| 102 | pass "print a.i with optimized out piece" |
| 103 | } |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | pieces_test_f1 |
| 108 | pieces_test_f2 |
| 109 | pieces_test_f3 |
| 110 | pieces_test_f6 |