projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 88b9d363 | 1 | # Copyright (C) 2015-2022 Free Software Foundation, Inc. |
| 906d60cf PA |
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 that GDB can step past a breakpoint even if GDB doesn't have | |
| 17 | # symbols for the main binary. PR gdb/13858. | |
| 18 | ||
| 19 | standard_testfile start.c | |
| 20 | ||
| 21 | if { [build_executable "failed to build" ${testfile} $srcfile] } { | |
| 22 | return -1 | |
| 23 | } | |
| 24 | ||
| 25 | # Get the current PC. MSG is used as test message. | |
| 26 | ||
| 27 | proc get_pc { msg } { | |
| 28 | global hex gdb_prompt | |
| 29 | ||
| 30 | set addr "" | |
| 31 | gdb_test_multiple "p /x \$pc" "$msg" { | |
| 32 | -re " = ($hex).*$gdb_prompt $" { | |
| 33 | set addr $expect_out(1,string) | |
| 34 | pass "$msg" | |
| 35 | } | |
| 36 | } | |
| 37 | ||
| 38 | return $addr | |
| 39 | } | |
| 40 | ||
| 41 | # Test stepping past a breakpoint with no symbols. DISPLACED is one | |
| 42 | # of the "set displaced-stepping" options. If GDB can't find where to | |
| 43 | # put the scratch pad, GDB should be able to fall back to stepping | |
| 44 | # past the breakpoint using an in-line step-over. | |
| 45 | ||
| 46 | proc test_step_over { displaced } { | |
| 47 | global hex | |
| 48 | global binfile | |
| 49 | ||
| 50 | clean_restart $binfile | |
| 51 | ||
| 52 | if ![runto_main] { | |
| 53 | fail "couldn't run to main" | |
| 54 | untested "stepping over breakpoint with displaced=$displaced" | |
| 55 | return -1 | |
| 56 | } | |
| 57 | ||
| 58 | delete_breakpoints | |
| 59 | ||
| 60 | set msg "purging symbols" | |
| 61 | gdb_test_multiple "file" "$msg" { | |
| 62 | -re "Are you sure you want to change the file.*y or n. $" { | |
| 63 | send_gdb "y\n" | |
| 64 | exp_continue | |
| 65 | } | |
| 66 | -re "Discard symbol table.*y or n. $" { | |
| 67 | gdb_test "y" "No symbol file now." "$msg" | |
| 68 | } | |
| 69 | } | |
| 70 | ||
| 71 | set before_addr [get_pc "get before PC"] | |
| 72 | ||
| 73 | gdb_test "break *\$pc" "Breakpoint .* at $hex" | |
| 74 | ||
| 75 | gdb_test_no_output "set displaced-stepping $displaced" | |
| 76 | ||
| 77 | gdb_test "stepi" "$hex in \?\? .*" | |
| 78 | ||
| 79 | set after_addr [get_pc "get after PC"] | |
| 80 | ||
| f468977a SM |
81 | gdb_assert {{[regexp "^${hex}$" $before_addr] \ |
| 82 | && [regexp "^${hex}$" $after_addr] \ | |
| 5f0e2eb7 | 83 | && $before_addr != $after_addr}} "advanced" |
| 906d60cf PA |
84 | } |
| 85 | ||
| 86 | foreach displaced { "off" "on" "auto" } { | |
| 87 | if { $displaced != "off" && ![support_displaced_stepping] } { | |
| 88 | continue | |
| 89 | } | |
| 90 | ||
| 91 | with_test_prefix "displaced=$displaced" { | |
| 92 | test_step_over $displaced | |
| 93 | } | |
| 94 | } |