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# Copyright 1992, 1994, 1995, 1996, 1997, 1999, 2002, 2007, 2008, 2009, 2010

# 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 3 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, see .

# This file was written by Fred Fish. (fnf@cygnus.com)

if $tracelevel then {

        strace $tracelevel

}

set testfile "opaque"

set binfile ${objdir}/${subdir}/opaque

#if  { [gdb_compile "${srcdir}/${subdir}/opaque0.c ${srcdir}/${subdir}/opaque1.c" "${binfile}" executable {debug}] != "" } {

#     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."

#}

if  { [gdb_compile "${srcdir}/${subdir}/opaque0.c" "${binfile}0.o" object {debug}] != "" } {

     untested opaque.exp

     return -1

}

if  { [gdb_compile "${srcdir}/${subdir}/opaque1.c" "${binfile}1.o" object {debug}] != "" } {

     untested opaque.exp

     return -1

}

if  { [gdb_compile "${binfile}0.o ${binfile}1.o" ${binfile} executable {debug}] != "" } {

     untested opaque.exp

     return -1

}

# Create and source the file that provides information about the compiler

# used to compile the test case.

if [get_compiler_info ${binfile}] {

    return -1;

}

# Start with a fresh gdb.

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

gdb_load ${binfile}

#

# Test basic opaque structure handling (statically).

# The ordering of the tests is significant.  We first try the things that

# might fail if gdb fails to connect the uses of opaque structures to

# the actual opaque structure definition.

# When we start up, gdb sets the file containing main() as the current

# source file.  The actual structure foo is defined in a different file.

# A pointer (foop) to an instance of the opaque struct is defined in the same

# source file as main().  Ensure that gdb correctly "connected" the definition

# in the other file with the pointer to the opaque struct in the file containing

# "foop".

# Define a procedure to set up an xfail for all targets that do not support

# this sort of cross reference.

# Any target gcc that has a DBX_NO_XREFS definition in its config file will

# not support it (FIXME: Is this still true; I suspect maybe not).

# Native alpha ecoff doesn't support it either.

# I don't think this type of cross reference works for any COFF target

# either.

proc setup_xfail_on_opaque_pointer {} {

        global gcc_compiled

        setup_xfail "vax-*-*" "i*86-sequent-bsd*"

        if {!$gcc_compiled} then {

                setup_xfail "alpha-*-*" "mips-sgi-irix5*"

        }

}

# This seems easier than trying to track different versions of xlc; I'm

# not sure there is much rhyme or reason regarding which tests it fails

# and which ones it passes.

if {[istarget "rs6000-*-aix*"] && !$gcc_compiled} then {

    warning "xfails in opaque.exp may not be set up correctly for xlc"

}

setup_xfail_on_opaque_pointer

gdb_test "whatis foop" \

    "type = struct foo \[*\]+" \

    "whatis on opaque struct pointer (statically)"

# Ensure that we know the form of the structure that foop points to.

setup_xfail_on_opaque_pointer

if {!$gcc_compiled} then { setup_xfail "rs6000-*-*" }

gdb_test "ptype foop" \

    "type = struct foo \{\[\r\n\]+    int a;\[\r\n\]+    int b;\[\r\n\]+\} \[*\]+" \

    "ptype on opaque struct pointer (statically)"

# An instance of the opaque structure (afoo) is defined in a different file.

# Ensure that we can locate afoo and the structure definition.

gdb_test "whatis afoo" \

    "type = struct foo" \

    "whatis on opaque struct instance (statically)"

# Ensure that we know the form of "afoo".

gdb_test "ptype afoo" \

    "type = struct foo \{\[\r\n\]+    int a;\[\r\n\]+    int b;\[\r\n\]+\}" \

    "ptype on opaque struct instance (statically)"

# Ensure that we know what a struct foo looks like.

gdb_test "ptype struct foo" \

    "type = struct foo \{\[\r\n\]+    int a;\[\r\n\]+    int b;\[\r\n\]+\}" \

    "ptype on opaque struct tagname (statically)"

#

# Done with static tests, now test dynamic opaque structure handling.

# We reload the symbol table so we forget about anything we might

# have learned during the static tests.

#

if [istarget "mips-idt-*"] then {

    # Restart because IDT/SIM runs out of file descriptors.

    gdb_exit

    gdb_start

}

gdb_reinitialize_dir $srcdir/$subdir

gdb_load ${binfile}

# Run to main, where struct foo is incomplete.

if ![runto_main] {

    perror "cannot run to breakpoint at main"

}

# The current source file is now the one containing main().  The structure foo

# is defined in a different file, but we have a pointer to an instance of

# the opaque structure in the current file.  Ensure we know it's type.

setup_xfail_on_opaque_pointer

gdb_test "whatis foop" \

    "type = struct foo \[*\]+" \

    "whatis on opaque struct pointer (dynamically)"

# Ensure that we know the form of the thing foop points to.

setup_xfail_on_opaque_pointer

if {!$gcc_compiled} then { setup_xfail "rs6000-*-*" }

gdb_test "ptype foop" \

    "type = struct foo \{\[\r\n\]+    int a;\[\r\n\]+    int b;\[\r\n\]+\} \[*\]+" \

    "ptype on opaque struct pointer (dynamically) 1"

gdb_test "whatis afoo" \

    "type = struct foo" \

    "whatis on opaque struct instance (dynamically) 1"

# Ensure that we know the form of afoo, an instance of a struct foo.

gdb_test "ptype afoo" \

    "type = struct foo \{\[\r\n\]+    int a;\[\r\n\]+    int b;\[\r\n\]+\}" \

    "ptype on opaque struct instance (dynamically) 1"

# Ensure that we know the form of an explicit struct foo.

if {!$gcc_compiled} then { setup_xfail "rs6000-*-*" }

gdb_test "ptype struct foo" \

    "type = struct foo \{\[\r\n\]+    int a;\[\r\n\]+    int b;\[\r\n\]+\}" \

    "ptype on opaque struct tagname (dynamically) 1"

# Now reload the symbols again so we forget about anything we might

# have learned reading the symbols during the previous tests.

if [istarget "mips-idt-*"] then {

    # Restart because IDT/SIM runs out of file descriptors.

    gdb_exit

    gdb_start

}

gdb_reinitialize_dir $srcdir/$subdir

gdb_load ${binfile}

# Run to getfoo, where struct foo is complete.

if ![runto getfoo] {

    perror "cannot run to breakpoint at getfoo"

}

# Ensure that we know what foop is.

setup_xfail_on_opaque_pointer

gdb_test "whatis foop" \

    "type = struct foo \[*\]+" \

    "whatis on opaque struct pointer (dynamically) 1"

# Ensure that we know the form of the thing foop points to.

setup_xfail_on_opaque_pointer

gdb_test "ptype foop" \

    "type = struct foo \{\[\r\n\]+    int a;\[\r\n\]+    int b;\[\r\n\]+\} \[*\]+" \

    "ptype on opaque struct pointer (dynamically) 2"

gdb_test "whatis afoo" \

    "type = struct foo" \

    "whatis on opaque struct instance (dynamically) 2"

# Ensure that we know the form of afoo, an instance of a struct foo.

gdb_test "ptype afoo" \

    "type = struct foo \{\[\r\n\]+    int a;\[\r\n\]+    int b;\[\r\n\]+\}" \

    "ptype on opaque struct instance (dynamically) 2"

# Ensure that we know the form of an explicit struct foo.

gdb_test "ptype struct foo" \

    "type = struct foo \{\[\r\n\]+    int a;\[\r\n\]+    int b;\[\r\n\]+\}" \

    "ptype on opaque struct tagname (dynamically) 2"