# Copyright 2012 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 <http://www.gnu.org/licenses/>.  */

set executable ctxobj-m

# The sources used to build two shared libraries (SO).  We use the exact
# same sources to build both SOs, but differentiate them through the use
# of macros defined when calling the compiler.
#
# We need two source files per SO, because we need to test the situation
# where we are trying to print the value of a global variable defined
# in that SO while the variable's associated symtab has not been created
# yet.
set libsrc [list "${srcdir}/${subdir}/ctxobj-v.c" \
                 "${srcdir}/${subdir}/ctxobj-f.c"]

set libobj1 "${objdir}/${subdir}/libctxobj1.so"
set libobj2 "${objdir}/${subdir}/libctxobj2.so"

set libobj1_opts { debug additional_flags=-fPIC
                   additional_flags=-DVERSION=104
                   additional_flags=-DGET_VERSION=get_version_1 }
set libobj2_opts { debug additional_flags=-fPIC
                   additional_flags=-DVERSION=203
                   additional_flags=-DGET_VERSION=get_version_2 }

if { [gdb_compile_shlib $libsrc $libobj1 $libobj1_opts ] != "" } {
    return -1
}
if { [gdb_compile_shlib $libsrc $libobj2 $libobj2_opts ] != "" } {
    return -1
}
if { [gdb_compile "${srcdir}/${subdir}/${executable}.c" \
                  "${objdir}/${subdir}/${executable}" \
                  executable \
                  [list debug shlib=${libobj1} shlib=${libobj2}]]
     != ""} {
    return -1
}

clean_restart $executable

if ![runto_main] {
    untested "could not run to main"
    return -1
}

gdb_breakpoint "get_version_1"
gdb_test "continue" \
         "Breakpoint $decimal, get_version_1 \\(\\).*" \
         "continue to get_version_1"

# Try printing "this_version_num".  There are two global variables
# with that name, but we should pick the one in the shared library
# we are currently debugging.  We will know we picked the correct one
# if the value printed is 104.  The first print test verifies that
# we're doing things right when the partial symtab hasn't been
# expanded.  And the second print test will do the same, but after
# the partial symtab has been expanded.

gdb_test "print this_version_num" \
         " = 104" \
        "print libctxobj1's this_version_num from partial symtab"

gdb_test "print this_version_num" \
         " = 104" \
        "print libctxobj1's this_version_num from symtab"

# Do the same, but from get_version_2.

gdb_breakpoint "get_version_2"
gdb_test "continue" \
         "Breakpoint $decimal, get_version_2 \\(\\).*" \
         "continue to get_version_2"

gdb_test "print this_version_num" \
         " = 203" \
        "print libctxobj2's this_version_num from partial symtab"

gdb_test "print this_version_num" \
         " = 203" \
        "print libctxobj2's this_version_num from symtab"