gdb/testsuite/gdb.base/return.exp

   1 # Copyright (C) 1992-2019 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 # This file was written by Jeff Law. (law@cs.utah.edu)
  17
  18 if { [prepare_for_testing "failed to prepare" "return"] } {
  19     return -1
  20 }
  21
  22 set skip_float_test [gdb_skip_float_test]
  23
  24 proc return_tests { } {
  25     global gdb_prompt skip_float_test
  26
  27
  28     if { ! [ runto func1 ] } then { return 0 }
  29
  30     gdb_test_multiple "return" "simple return" {
  31         -re "Make .* return now.*y or n. $" {
  32             send_gdb "y\n"
  33             exp_continue
  34         }
  35         -re "func1 ..;.*$gdb_prompt $" {
  36             send_gdb "step\n"
  37             exp_continue
  38         }
  39         -re ".*in main after func1.*$gdb_prompt $" {
  40             pass "simple return"
  41         }
  42     }
  43
  44     # Set breakpoints in other interesting functions.
  45     gdb_test "break func2" ".*"
  46     gdb_test "break func3" ".*"
  47
  48     gdb_test "continue" "return -5;" "continue to return of -5"
  49
  50     gdb_test_multiple "return 5" "return value 5" {
  51         -re "Make .* return now.*y or n. $" {
  52             send_gdb "y\n"
  53             exp_continue
  54         }
  55         -re ".*tmp2 = func2.*$gdb_prompt $" {
  56             # pass without comment
  57         }
  58     }
  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
  70     gdb_test_multiple "return 5.0" "return value 5.0" {
  71         -re "Make .* return now.*y or n. $" {
  72             send_gdb "y\n"
  73             exp_continue
  74         }
  75         -re ".*tmp3 = func3.*$gdb_prompt $" {
  76             # pass without comment
  77         }
  78     }
  79
  80     setup_xfail "m6811-*-*"
  81     gdb_test "next" "printf.*" "next over call to func3"
  82
  83     # This test also fails for sparc Solaris 2.3 & 2.4, but passes under 2.5
  84     # At the time the `next' is issued, the floating point unit for the
  85     # process is not yet initialized, and the storing of the floating
  86     # point value to the floating point return register is ignored.
  87     # Xfail it for current versions that are known to fail.  Presumably
  88     # if some future version does initialize the floating point unit at
  89     # process start, making this test pass, it will be for a version that
  90     # is not xfailed.
  91
  92     setup_xfail "sparc-*-solaris2.3*" "sparc-*-solaris2.4*" "m6811-*-*"
  93     if {!$skip_float_test} {
  94         gdb_test "p tmp3" ".* = 5.*" \
  95             "correct value returned double test (known problem with sparc solaris)"
  96     }
  97 }
  98
  99 set prev_timeout $timeout
 100 set timeout 30
 101 return_tests
 102 set timeout $prev_timeout