gdb/testsuite/gdb.base/opaque.exp

   1 # Copyright (C) 1992, 1994, 1997 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 2 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program; if not, write to the Free Software
  15 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  16
  17 # Please email any bugs, comments, and/or additions to this file to:
  18 # bug-gdb@prep.ai.mit.edu
  19
  20 # This file was written by Fred Fish. (fnf@cygnus.com)
  21
  22 if $tracelevel then {
  23         strace $tracelevel
  24 }
  25
  26 set prms_id 0
  27 set bug_id 0
  28
  29 set testfile "opaque"
  30 set binfile ${objdir}/${subdir}/opaque
  31
  32 #if  { [gdb_compile "${srcdir}/${subdir}/opaque0.c ${srcdir}/${subdir}/opaque1.c" "${binfile}" executable {debug}] != "" } {
  33 #     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
  34 #}
  35
  36 if  { [gdb_compile "${srcdir}/${subdir}/opaque0.c" "${binfile}0.o" object {debug}] != "" } {
  37      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
  38 }
  39
  40 if  { [gdb_compile "${srcdir}/${subdir}/opaque1.c" "${binfile}1.o" object {debug}] != "" } {
  41      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
  42 }
  43
  44 if  { [gdb_compile "${binfile}0.o ${binfile}1.o" ${binfile} executable {debug}] != "" } {
  45      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
  46 }
  47
  48
  49 # Create and source the file that provides information about the compiler
  50 # used to compile the test case.
  51 if [get_compiler_info ${binfile}] {
  52     return -1;
  53 }
  54
  55 # Start with a fresh gdb.
  56
  57 gdb_exit
  58 gdb_start
  59 gdb_reinitialize_dir $srcdir/$subdir
  60 gdb_load ${binfile}
  61
  62 #
  63 # Test basic opaque structure handling (statically).
  64 # The ordering of the tests is significant.  We first try the things that
  65 # might fail if gdb fails to connect the uses of opaque structures to
  66 # the actual opaque structure definition.
  67
  68 # When we start up, gdb sets the file containing main() as the current
  69 # source file.  The actual structure foo is defined in a different file.
  70 # A pointer (foop) to an instance of the opaque struct is defined in the same
  71 # source file as main().  Ensure that gdb correctly "connected" the definition
  72 # in the other file with the pointer to the opaque struct in the file containing
  73 # "foop".
  74
  75 # Define a procedure to set up an xfail for all targets that do not support
  76 # this sort of cross reference.
  77 # Any target gcc that has a DBX_NO_XREFS definition in its config file will
  78 # not support it (FIXME: Is this still true; I suspect maybe not).
  79
  80 # Native alpha ecoff doesn't support it either.
  81 # I don't think this type of cross reference works for any COFF target
  82 # either.
  83
  84 proc setup_xfail_on_opaque_pointer {} {
  85         global gcc_compiled
  86
  87         setup_xfail "a29k-*-udi" "vax-*-*" "i*86-sequent-bsd*"
  88         if {!$gcc_compiled} then {
  89                 setup_xfail "alpha-*-*" "mips-sgi-irix5*"
  90         }
  91 }
  92
  93 # This seems easier than trying to track different versions of xlc; I'm
  94 # not sure there is much rhyme or reason regarding which tests it fails
  95 # and which ones it passes.
  96 if {[istarget "rs6000-*-aix*"] && !$gcc_compiled} then {
  97     warning "xfails in opaque.exp may not be set up correctly for xlc"
  98 }
  99
 100 setup_xfail_on_opaque_pointer
 101 gdb_test "whatis foop" \
 102     "type = struct foo \[*\]+" \
 103     "whatis on opaque struct pointer (statically)"
 104
 105
 106 # Ensure that we know the form of the structure that foop points to.
 107
 108 setup_xfail_on_opaque_pointer
 109 if {!$gcc_compiled} then { setup_xfail "rs6000-*-*" "hppa*-*-hpux*" }
 110 gdb_test "ptype foop" \
 111     "type = struct foo \{\[\r\n\]+    int a;\[\r\n\]+    int b;\[\r\n\]+\} \[*\]+" \
 112     "ptype on opaque struct pointer (statically)"
 113
 114
 115 # An instance of the opaque structure (afoo) is defined in a different file.
 116 # Ensure that we can locate afoo and the structure definition.
 117
 118 gdb_test "whatis afoo" \
 119     "type = struct foo" \
 120     "whatis on opaque struct instance (statically)"
 121
 122
 123 # Ensure that we know the form of "afoo".
 124
 125 gdb_test "ptype afoo" \
 126     "type = struct foo \{\[\r\n\]+    int a;\[\r\n\]+    int b;\[\r\n\]+\}" \
 127     "ptype on opaque struct instance (statically)"
 128
 129
 130 # Ensure that we know what a struct foo looks like.
 131
 132 gdb_test "ptype struct foo" \
 133     "type = struct foo \{\[\r\n\]+    int a;\[\r\n\]+    int b;\[\r\n\]+\}" \
 134     "ptype on opaque struct tagname (statically)"
 135
 136
 137 #
 138 # Done with static tests, now test dynamic opaque structure handling.
 139 # We reload the symbol table so we forget about anything we might
 140 # have learned during the static tests.
 141 #
 142
 143 if [istarget "mips-idt-*"] then {
 144     # Restart because IDT/SIM runs out of file descriptors.
 145     gdb_exit
 146     gdb_start
 147 }
 148 gdb_reinitialize_dir $srcdir/$subdir
 149 gdb_load ${binfile}
 150
 151 # Run to main, where struct foo is incomplete.
 152 if ![runto_main] {
 153     perror "cannot run to breakpoint at main"
 154 }
 155
 156
 157 # The current source file is now the one containing main().  The structure foo
 158 # is defined in a different file, but we have a pointer to an instance of
 159 # the opaque structure in the current file.  Ensure we know it's type.
 160
 161 setup_xfail_on_opaque_pointer
 162 gdb_test "whatis foop" \
 163     "type = struct foo \[*\]+" \
 164     "whatis on opaque struct pointer (dynamically)"
 165
 166
 167 # Ensure that we know the form of the thing foop points to.
 168
 169 setup_xfail_on_opaque_pointer
 170 if {!$gcc_compiled} then { setup_xfail "rs6000-*-*" "hppa*-*-hpux*" }
 171 gdb_test "ptype foop" \
 172     "type = struct foo \{\[\r\n\]+    int a;\[\r\n\]+    int b;\[\r\n\]+\} \[*\]+" \
 173     "ptype on opaque struct pointer (dynamically) 1"
 174
 175 gdb_test "whatis afoo" \
 176     "type = struct foo" \
 177     "whatis on opaque struct instance (dynamically) 1"
 178
 179
 180 # Ensure that we know the form of afoo, an instance of a struct foo.
 181
 182 gdb_test "ptype afoo" \
 183     "type = struct foo \{\[\r\n\]+    int a;\[\r\n\]+    int b;\[\r\n\]+\}" \
 184     "ptype on opaque struct instance (dynamically) 1"
 185
 186
 187 # Ensure that we know the form of an explicit struct foo.
 188
 189 if {!$gcc_compiled} then { setup_xfail "rs6000-*-*" }
 190 gdb_test "ptype struct foo" \
 191     "type = struct foo \{\[\r\n\]+    int a;\[\r\n\]+    int b;\[\r\n\]+\}" \
 192     "ptype on opaque struct tagname (dynamically) 1"
 193
 194
 195 # Now reload the symbols again so we forget about anything we might
 196 # have learned reading the symbols during the previous tests.
 197
 198 if [istarget "mips-idt-*"] then {
 199     # Restart because IDT/SIM runs out of file descriptors.
 200     gdb_exit
 201     gdb_start
 202 }
 203 gdb_reinitialize_dir $srcdir/$subdir
 204 gdb_load ${binfile}
 205
 206 # Run to getfoo, where struct foo is complete.
 207 if ![runto getfoo] {
 208     perror "cannot run to breakpoint at getfoo"
 209 }
 210
 211
 212 # Ensure that we know what foop is.
 213
 214 setup_xfail_on_opaque_pointer
 215 gdb_test "whatis foop" \
 216     "type = struct foo \[*\]+" \
 217     "whatis on opaque struct pointer (dynamically) 1"
 218
 219
 220 # Ensure that we know the form of the thing foop points to.
 221
 222 setup_xfail_on_opaque_pointer
 223 if {!$gcc_compiled} then { setup_xfail "rs6000-*-*" "hppa*-*-hpux*" }
 224 gdb_test "ptype foop" \
 225     "type = struct foo \{\[\r\n\]+    int a;\[\r\n\]+    int b;\[\r\n\]+\} \[*\]+" \
 226     "ptype on opaque struct pointer (dynamically) 2"
 227
 228 gdb_test "whatis afoo" \
 229     "type = struct foo" \
 230     "whatis on opaque struct instance (dynamically) 2"
 231
 232
 233 # Ensure that we know the form of afoo, an instance of a struct foo.
 234
 235 gdb_test "ptype afoo" \
 236     "type = struct foo \{\[\r\n\]+    int a;\[\r\n\]+    int b;\[\r\n\]+\}" \
 237     "ptype on opaque struct instance (dynamically) 2"
 238
 239
 240 # Ensure that we know the form of an explicit struct foo.
 241
 242 gdb_test "ptype struct foo" \
 243     "type = struct foo \{\[\r\n\]+    int a;\[\r\n\]+    int b;\[\r\n\]+\}" \
 244     "ptype on opaque struct tagname (dynamically) 2"