125 lines
4.4 KiB
Text
125 lines
4.4 KiB
Text
|
# Copyright (C) 1992, 1997 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
# This program is free software; you can redistribute it and/or modify
|
||
|
|
# it under the terms of the GNU General Public License as published by
|
||
|
|
# the Free Software Foundation; either version 2 of the License, or
|
||
|
|
# (at your option) any later version.
|
||
|
|
#
|
||
|
|
# This program is distributed in the hope that it will be useful,
|
||
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
# GNU General Public License for more details.
|
||
|
|
#
|
||
|
|
# You should have received a copy of the GNU General Public License
|
||
|
|
# along with this program; if not, write to the Free Software
|
||
|
|
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||
|
|
|
||
|
|
# Please email any bugs, comments, and/or additions to this file to:
|
||
|
|
# bug-gdb@prep.ai.mit.edu
|
||
|
|
|
||
|
|
# This file was written by Jeff Law. (law@cs.utah.edu)
|
||
|
|
|
||
|
|
if $tracelevel then {
|
||
|
|
strace $tracelevel
|
||
|
|
}
|
||
|
|
|
||
|
|
set prms_id 0
|
||
|
|
set bug_id 0
|
||
|
|
|
||
|
|
set testfile "return"
|
||
|
|
set srcfile ${testfile}.c
|
||
|
|
set binfile ${objdir}/${subdir}/${testfile}
|
||
|
|
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
|
||
|
|
gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
|
||
|
|
}
|
||
|
|
|
||
|
|
proc return_tests { } {
|
||
|
|
global gdb_prompt
|
||
|
|
|
||
|
|
|
||
|
|
if { ! [ runto func1 ] } then { return 0 }
|
||
|
|
send_gdb "return\n"
|
||
|
|
gdb_expect {
|
||
|
|
-re "Make .* return now.*y or n. $" {
|
||
|
|
send_gdb "y\n"
|
||
|
|
exp_continue
|
||
|
|
}
|
||
|
|
-re "func1 ..;.*$gdb_prompt $" {
|
||
|
|
send_gdb "step\n"
|
||
|
|
exp_continue
|
||
|
|
}
|
||
|
|
-re ".*in main after func1.*$gdb_prompt $" { pass "simple return" }
|
||
|
|
-re "$gdb_prompt $" { fail "simple return" }
|
||
|
|
timeout { fail "(timeout) simple return" }
|
||
|
|
}
|
||
|
|
|
||
|
|
# Set breakpoints in other interesting functions.
|
||
|
|
gdb_test "break func2" "" "break func2"
|
||
|
|
gdb_test "break func3" "" "break func3"
|
||
|
|
|
||
|
|
gdb_test "continue" "return -5;" "continue to return of -5"
|
||
|
|
send_gdb "return 5\n"
|
||
|
|
gdb_expect {
|
||
|
|
-re "Make .* return now.*y or n. $" {
|
||
|
|
send_gdb "y\n"
|
||
|
|
exp_continue
|
||
|
|
}
|
||
|
|
-re ".*tmp2 = func2.*$gdb_prompt $" { }
|
||
|
|
-re "$gdb_prompt $" { fail "did not return (integer test)" }
|
||
|
|
timeout { fail "(timeout) did not return (integer test)" }
|
||
|
|
}
|
||
|
|
gdb_test "next" "tmp3 = func3.*" "next over call to func2"
|
||
|
|
|
||
|
|
gdb_test "p tmp2" ".* = 5" "correct value returned (integer test)"
|
||
|
|
|
||
|
|
gdb_test "continue" "return -5.0;" "continue to return of -5.0"
|
||
|
|
send_gdb "return 5.0\n"
|
||
|
|
gdb_expect {
|
||
|
|
-re "Make .* return now.*y or n. $" {
|
||
|
|
send_gdb "y\n"
|
||
|
|
exp_continue
|
||
|
|
}
|
||
|
|
-re ".*tmp3 = func3.*$gdb_prompt $" { }
|
||
|
|
-re "$gdb_prompt $" { fail "did not return (double test)" }
|
||
|
|
timeout { fail "(timeout) did not return (double test)" }
|
||
|
|
}
|
||
|
|
|
||
|
|
gdb_test "next" "printf.*" "next over call to func3"
|
||
|
|
|
||
|
|
# This test is going to fail on all i*86 systems using an i*87.
|
||
|
|
# When returning a floating point value from a function, all known
|
||
|
|
# compilers do this via a `fldl' instruction, which pushes the floating
|
||
|
|
# value on the i387 stack. This causes two problems:
|
||
|
|
# a) Most i*86 targets do not store (or cannot store, see comment in
|
||
|
|
# in i386v-nat.c:i386_register_u_addr) the floating point registers
|
||
|
|
# to the target.
|
||
|
|
# b) gdb would have to figure out if the `fldl' instruction (or variants
|
||
|
|
# of it) has already been executed. If not, it would have to simulate
|
||
|
|
# a push instruction, as it is not enough to write the register,
|
||
|
|
# the floating point `stack pointer' has to be updated too.
|
||
|
|
# Do not expect this to get fixed anytime soon.
|
||
|
|
|
||
|
|
# This test also fails for sparc Solaris 2.3 & 2.4, but passes under 2.5
|
||
|
|
# At the time the `next' is issued, the floating point unit for the
|
||
|
|
# process is not yet initialized, and the storing of the floating
|
||
|
|
# point value to the floating point return register is ignored.
|
||
|
|
# Xfail it for current versions that are known to fail. Presumably
|
||
|
|
# if some future version does initialize the floating point unit at
|
||
|
|
# process start, making this test pass, it will be for a version that
|
||
|
|
# is not xfailed.
|
||
|
|
|
||
|
|
setup_xfail "i*86-*-*" "sparc-*-solaris2.3*" "sparc-*-solaris2.4*"
|
||
|
|
gdb_test "p tmp3" ".* = 5.*" "correct value returned double test (known problem with i*86 and sparc solaris"
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
# Start with a fresh gdb.
|
||
|
|
|
||
|
|
gdb_exit
|
||
|
|
gdb_start
|
||
|
|
gdb_reinitialize_dir $srcdir/$subdir
|
||
|
|
gdb_load ${binfile}
|
||
|
|
|
||
|
|
set timeout 30
|
||
|
|
return_tests
|