gdb/testsuite/gdb.base/return.exp

   1 # Copyright (C) 1992, 1997, 2001, 2007, 2008, 2009
   2 # Free Software Foundation, Inc.
   3
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 # This file was written by Jeff Law. (law@cs.utah.edu)
  18
  19 if { [prepare_for_testing return.exp "return"] } {
  20     return -1
  21 }
  22
  23 proc return_tests { } {
  24     global gdb_prompt
  25
  26
  27     if { ! [ runto func1 ] } then { return 0 }
  28     send_gdb "return\n"
  29     gdb_expect {
  30         -re "Make .* return now.*y or n. $" {
  31             send_gdb "y\n"
  32             exp_continue
  33         }
  34         -re "func1 ..;.*$gdb_prompt $" {
  35             send_gdb "step\n"
  36             exp_continue
  37         }
  38     -re ".*in main after func1.*$gdb_prompt $" { pass "simple return" }
  39     -re "$gdb_prompt $" { fail "simple return" }
  40     timeout { fail "(timeout) simple return" }
  41     }
  42
  43     # Set breakpoints in other interesting functions.
  44     gdb_test "break func2" "" "break func2"
  45     gdb_test "break func3" "" "break func3"
  46
  47     gdb_test "continue" "return -5;" "continue to return of -5"
  48     send_gdb "return 5\n"
  49     gdb_expect {
  50         -re "Make .* return now.*y or n. $" {
  51             send_gdb "y\n"
  52             exp_continue
  53         }
  54     -re ".*tmp2 = func2.*$gdb_prompt $" { }
  55     -re "$gdb_prompt $" { fail "did not return (integer test)" }
  56     timeout { fail "(timeout) did not return (integer test)" }
  57     }
  58     gdb_test "next" "tmp3 = func3.*" "next over call to func2"
  59
  60     gdb_test "p tmp2" ".* = 5" "correct value returned (integer test)"
  61
  62     gdb_test "continue" "return -5.0;" "continue to return of -5.0"
  63
  64     # Return of a double does not work for 68hc11 (need struct return
  65     # in memory).
  66     setup_xfail "m6811-*-*"
  67     send_gdb "return 5.0\n"
  68     gdb_expect {
  69         -re "Make .* return now.*y or n. $" {
  70             send_gdb "y\n"
  71             exp_continue
  72         }
  73         -re ".*tmp3 = func3.*$gdb_prompt $" { }
  74         -re "$gdb_prompt $" { fail "did not return (double test)" }
  75         timeout { fail "(timeout) did not return (double test)" }
  76     }
  77
  78     setup_xfail "m6811-*-*"
  79     gdb_test "next" "printf.*" "next over call to func3"
  80
  81     # This test also fails for sparc Solaris 2.3 & 2.4, but passes under 2.5
  82     # At the time the `next' is issued, the floating point unit for the
  83     # process is not yet initialized, and the storing of the floating
  84     # point value to the floating point return register is ignored.
  85     # Xfail it for current versions that are known to fail.  Presumably
  86     # if some future version does initialize the floating point unit at
  87     # process start, making this test pass, it will be for a version that
  88     # is not xfailed.
  89
  90     setup_xfail "sparc-*-solaris2.3*" "sparc-*-solaris2.4*" "m6811-*-*"
  91     gdb_test "p tmp3" ".* = 5.*" "correct value returned double test (known problem with sparc solaris)"
  92 }
  93
  94 set timeout 30
  95 return_tests