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Date: Fri, 10 Aug 2007 10:10:00 -0000
From: Jerome Guitton <guitton@adacore.com>
To: gdb-patches@sources.redhat.com
Subject: [RFA/testsuite] backtrace in mixed language application
Message-ID: <20070810101003.GA33739@adacore.com>
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Testcase for http://sourceware.org/ml/gdb-patches/2007-08/msg00201.html,
to commit in the gdb.ada directory.


2007-08-10  Jerome Guitton  <guitton@adacore.com>

        * gdb.ada/lang_switch/lang_switch.adb: New file.
        * gdb.ada/lang_switch/foo.c: Ditto.
        * gdb.ada/lang_switch.exp: New testcase.

OK to add?
Thanks in advance,
Jerome

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# Copyright 2007 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.  

if $tracelevel then {
    strace $tracelevel
}

load_lib "ada.exp"

set testdir "lang_switch"
set testfile "${testdir}/lang_switch"
set cfile "${testdir}/foo"
set adasrcfile ${srcdir}/${subdir}/${testfile}.adb
set csrcfile ${srcdir}/${subdir}/${cfile}.c
set cobject  ${objdir}/${subdir}/${cfile}.o
set binfile ${objdir}/${subdir}/${testfile}

file mkdir ${objdir}/${subdir}/${testdir}
gdb_compile "${csrcfile}" "${cobject}" object [list debug]
if {[gdb_compile_ada "${adasrcfile}" "${binfile}" executable [list debug]] != "" } {
  return -1
}

gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}

set bp_location [gdb_get_line_number "STOP" ${csrcfile}]
runto "foo.c:$bp_location"

# Make sure that the language is switched to Ada for the second frame
# by checking the string parameter.
gdb_test "bt" \
         ".*#1.*lang_switch\.ada_procedure\\s*\\(msg=$hex\\).*" \
         "backtrace"

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with System;

procedure Lang_Switch is
   pragma Linker_Options ("foo.o");

   function C_Procedure (Msg : String) return Integer;
   pragma Import(C, C_Procedure, "c_procedure");

   procedure Ada_Procedure (Msg : String) is
      C_Msg : String (1 .. 1024);
      Tmp_Int : Integer;
   begin
      C_Msg  (1 .. Msg'length   + 1) := Msg & Ascii.Nul;
      Tmp_Int := C_Procedure (Msg => C_Msg);
   end Ada_Procedure;

begin
   Ada_Procedure ("msg");
end Lang_Switch;

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int c_procedure (char* msg)
{
  return 0; /* STOP */
}

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