type-opaque.exp

gdb-6.8 Linux下的调试程序 最新版本

# Copyright 2004, 2007, 2008 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/>.  */

# Please email any bugs, comments, and/or additions to this file to:
# [e-mail]

# Test resolving of an opaque type from the loaded shared library.

if $tracelevel then {
    strace $tracelevel
}

set testfile type-opaque-main
set libfile type-opaque-lib
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}

set libsrc "${srcdir}/${subdir}/${libfile}.c"
set libobj "${objdir}/${subdir}/${libfile}.so"
set execsrc "${srcdir}/${subdir}/${srcfile}"

remote_exec build "rm -f ${binfile}"

# Are we on a target board?  No support for downloading shared libraries
# to a target yet.
if ![isnative] then {
    return 0
}

# get the value of gcc_compiled
if [get_compiler_info ${binfile}] {
    return -1
}

if { [gdb_compile_shlib $libsrc $libobj {debug}] != ""
     || [gdb_compile $execsrc ${binfile} executable \
	     [list debug shlib=${libobj}]] != "" } {
    return -1
}

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

if ![runto_main] then {
    fail "Can't run to main"
    return 0
}


# DWARF3: An incomplete structure, union or class type is represented by
# a structure, union or class entry that does not have a byte size attribute
# and that has a DW_AT_declaration attribute.


proc body { struct } {
    global gdb_prompt


    # <1><15f>: Abbrev Number: 8 (DW_TAG_structure_type)
    #     DW_AT_name        : libtype_opaque
    #     DW_AT_declaration : 1

    set name "opaque $struct type resolving"
    gdb_test_multiple "ptype pointer_${struct}_opaque" $name \
    {
	-re "libfield_opaque.*$gdb_prompt $"  {
	    pass $name
	}
    }


    # <1><9e>: Abbrev Number: 2 (DW_TAG_structure_type)
    #     DW_AT_name        : libtype_empty
    #     DW_AT_byte_size   : 0
    #     DW_AT_decl_file   : 1
    #     DW_AT_decl_line   : 25

    set name "empty $struct type resolving"
    gdb_test_multiple "ptype pointer_${struct}_empty" $name \
    {
	-re "\\{\[ \t\r\n\]*<no data fields>\[ \t\r\n\]*\\}.*$gdb_prompt $"  {
	    pass $name
	}
	-re "libfield_empty.*$gdb_prompt $"  {
	    fail $name
	}
    }


    # <1><b0>: Abbrev Number: 3 (DW_TAG_structure_type)
    #     DW_AT_sibling     : <e3>
    #     DW_AT_name        : libtype_filled
    #     DW_AT_byte_size   : 4
    #     DW_AT_decl_file   : 1
    #     DW_AT_decl_line   : 29
    # <2><c7>: Abbrev Number: 4 (DW_TAG_member)
    #     DW_AT_name        : mainfield_filled
    #     DW_AT_decl_file   : 1
    #     DW_AT_decl_line   : 30
    #     DW_AT_type        : <e3>
    #     DW_AT_data_member_location: 2 byte block: 23 0     (DW_OP_plus_uconst: 0)

    set name "filled $struct type resolving"
    gdb_test_multiple "ptype pointer_${struct}_filled" $name \
    {
	-re "mainfield_filled.*$gdb_prompt $"  {
	    pass $name
	}
	-re "libfield_filled.*$gdb_prompt $"  {
	    fail $name
	}
    }


}


body struct
body union