gdb/testsuite/gdb.base/jump.exp

   1 #   Copyright 1998-2022 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
  17 clear_xfail "*-*-*"
  18
  19 standard_testfile .c
  20
  21 # Build the test case
  22 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } {
  23      untested "failed to compile"
  24      return -1
  25     }
  26
  27
  28 # Start with a fresh gdb
  29
  30 clean_restart ${binfile}
  31
  32 if ![runto_main] then {
  33   perror "Couldn't run to main"
  34   return -1
  35 }
  36
  37 # Set a breakpoint on the statement that we're about to jump to.
  38 # The statement doesn't contain a function call.
  39 #
  40 set bp_on_non_call 0
  41 set non_call_line [gdb_get_line_number "bp-on-non-call"]
  42 gdb_test_multiple "break $non_call_line" "break before jump to non-call" {
  43     -re "\[Bb\]reakpoint (${decimal}) at ${hex}: file .*${srcfile}, line $non_call_line.*$gdb_prompt $" {
  44         set bp_on_non_call $expect_out(1,string)
  45         pass "break before jump to non-call"
  46     }
  47 }
  48
  49 # Can we jump to the statement?  Do we stop there?
  50 #
  51 gdb_test "jump $non_call_line" "Breakpoint ${decimal}, .*${srcfile}:$non_call_line.*" \
  52     "jump to non-call"
  53
  54 # Set a breakpoint on the statement that we're about to jump to.
  55 # The statement does contain a function call.
  56 #
  57 set bp_on_call 0
  58 set call_line [gdb_get_line_number "bp-on-call"]
  59 gdb_test_multiple "break $call_line" "break before jump to call" {
  60     -re "\[Bb\]reakpoint (${decimal}) at ${hex}: file .*${srcfile}, line $call_line.*$gdb_prompt $" {
  61         set bp_on_call $expect_out(1,string)
  62         pass "break before jump to call"
  63     }
  64 }
  65
  66 # Can we jump to the statement?  Do we stop there?
  67 #
  68 gdb_test "jump $call_line" \
  69     "Breakpoint ${decimal}, .*${srcfile}:$call_line.*" \
  70     "jump to call"
  71
  72 # If we disable the breakpoint at the function call, and then
  73 # if we jump to that statement, do we not stop there, but at
  74 # the following breakpoint?
  75 #
  76 gdb_test_no_output "disable $bp_on_call" "disable breakpoint on call"
  77
  78 gdb_test "jump $call_line" "Breakpoint ${decimal}, .*${srcfile}:$non_call_line.*" \
  79     "jump to call with disabled breakpoint"
  80
  81 # Verify that GDB responds gracefully to the "jump" command without
  82 # an argument.
  83 #
  84 gdb_test "jump" "Argument required .starting address.*" \
  85     "jump without argument disallowed"
  86
  87
  88 # Verify that GDB responds gracefully to the "jump" command with
  89 # trailing junk.
  90 #
  91 gdb_test "jump $call_line 100" \
  92     "malformed linespec error: unexpected number, \"100\"" \
  93     "jump with trailing argument junk"
  94
  95
  96 # Verify that GDB responds gracefully to a request to jump out of
  97 # the current function.  (Note that this will very likely cause the
  98 # inferior to die.  Be prepared to rerun the inferior, if further
  99 # testing is desired.)
 100 #
 101 # Try it both ways: confirming and not confirming the jump.
 102 #
 103
 104 set out_line [gdb_get_line_number "out-of-func"]
 105 gdb_test "jump $out_line" \
 106     "Not confirmed.*" \
 107     "aborted jump out of current function" \
 108     "Line $out_line is not in `main'.  Jump anyway.*y or n. $" \
 109     "n"
 110
 111 gdb_test "jump $out_line" \
 112     "Continuing at.*" \
 113     "jump out of current function" \
 114     "Line $out_line is not in `main'.  Jump anyway.*y or n. $" \
 115     "y"
 116
 117 gdb_exit
 118 return 0