gdb/testsuite/gdb.base/return.exp

   1 # Copyright (C) 1992, 1997, 2001, 2007, 2008 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 # Please email any bugs, comments, and/or additions to this file to:
  17 # bug-gdb@prep.ai.mit.edu
  18
  19 # This file was written by Jeff Law. (law@cs.utah.edu)
  20
  21 if { [prepare_for_testing return.exp "return"] } {
  22     return -1
  23 }
  24
  25 proc return_tests { } {
  26     global gdb_prompt
  27
  28
  29     if { ! [ runto func1 ] } then { return 0 }
  30     send_gdb "return\n"
  31     gdb_expect {
  32         -re "Make .* return now.*y or n. $" {
  33             send_gdb "y\n"
  34             exp_continue
  35         }
  36         -re "func1 ..;.*$gdb_prompt $" {
  37             send_gdb "step\n"
  38             exp_continue
  39         }
  40     -re ".*in main after func1.*$gdb_prompt $" { pass "simple return" }
  41     -re "$gdb_prompt $" { fail "simple return" }
  42     timeout { fail "(timeout) simple return" }
  43     }
  44
  45     # Set breakpoints in other interesting functions.
  46     gdb_test "break func2" "" "break func2"
  47     gdb_test "break func3" "" "break func3"
  48
  49     gdb_test "continue" "return -5;" "continue to return of -5"
  50     send_gdb "return 5\n"
  51     gdb_expect {
  52         -re "Make .* return now.*y or n. $" {
  53             send_gdb "y\n"
  54             exp_continue
  55         }
  56     -re ".*tmp2 = func2.*$gdb_prompt $" { }
  57     -re "$gdb_prompt $" { fail "did not return (integer test)" }
  58     timeout { fail "(timeout) did not return (integer test)" }
  59     }
  60     gdb_test "next" "tmp3 = func3.*" "next over call to func2"
  61
  62     gdb_test "p tmp2" ".* = 5" "correct value returned (integer test)"
  63
  64     gdb_test "continue" "return -5.0;" "continue to return of -5.0"
  65
  66     # Return of a double does not work for 68hc11 (need struct return
  67     # in memory).
  68     setup_xfail "m6811-*-*"
  69     send_gdb "return 5.0\n"
  70     gdb_expect {
  71         -re "Make .* return now.*y or n. $" {
  72             send_gdb "y\n"
  73             exp_continue
  74         }
  75         -re ".*tmp3 = func3.*$gdb_prompt $" { }
  76         -re "$gdb_prompt $" { fail "did not return (double test)" }
  77         timeout { fail "(timeout) did not return (double test)" }
  78     }
  79
  80     setup_xfail "m6811-*-*"
  81     gdb_test "next" "printf.*" "next over call to func3"
  82
  83     # This test also fails for sparc Solaris 2.3 & 2.4, but passes under 2.5
  84     # At the time the `next' is issued, the floating point unit for the
  85     # process is not yet initialized, and the storing of the floating
  86     # point value to the floating point return register is ignored.
  87     # Xfail it for current versions that are known to fail.  Presumably
  88     # if some future version does initialize the floating point unit at
  89     # process start, making this test pass, it will be for a version that
  90     # is not xfailed.
  91
  92     setup_xfail "sparc-*-solaris2.3*" "sparc-*-solaris2.4*" "m6811-*-*"
  93     gdb_test "p tmp3" ".* = 5.*" "correct value returned double test (known problem with sparc solaris)"
  94 }
  95
  96 set timeout 30
  97 return_tests