gdb/testsuite/gdb.base/nodebug.exp

   1 # Copyright 1997-2016 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 3 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, see <http://www.gnu.org/licenses/>.
  15
  16 # Test that things still (sort of) work when compiled without -g.
  17
  18
  19 standard_testfile .c
  20
  21 if [get_compiler_info] {
  22     return -1
  23 }
  24
  25 if [test_compiler_info "xlc-*"] {
  26     # By default, IBM'x xlc compiler doesn't add static variables into the symtab.
  27     # Use "-qstatsym" to do so.
  28     set exec_opts additional_flags=-qstatsym
  29 } else {
  30     set exec_opts ""
  31 }
  32
  33 if  { [gdb_compile $srcdir/$subdir/$srcfile $binfile executable $exec_opts] != "" } {
  34     untested "Couldn't compile $srcfile."
  35     return -1
  36 }
  37
  38 # Start with a fresh gdb.
  39
  40 clean_restart $binfile
  41
  42 if [runto inner] then {
  43
  44     # Expect to find global/local symbols in each of text/data/bss.
  45
  46     # The exact format for some of this output is not necessarily
  47     # ideal, particularly interpreting "p top" requires a fair bit of
  48     # savvy about gdb's workings and the meaning of the "{}"
  49     # construct.  So the details maybe could be tweaked.  But the
  50     # basic purpose should be maintained, which is (a) users should be
  51     # able to interact with these variables with some care (they have
  52     # to know how to interpret them according to their real type,
  53     # since gdb doesn't know the type), but (b) users should be able
  54     # to detect that gdb does not know the type, rather than just
  55     # being told they are ints or functions returning int like old
  56     # versions of gdb used to do.
  57
  58     # On alpha (and other ecoff systems) the native compilers put
  59     # out debugging info for non-aggregate return values of functions
  60     # even without -g, which should be accepted.
  61
  62     gdb_test "p top" \
  63         "\{(<(text variable|function), no debug info>|short \\(int\\)|short \\(\\))\} \[0-9a-fx]* <\\.?top(\\(int\\)|)>"
  64     gdb_test "whatis top" \
  65         "(<(text variable|function), no debug info>|short \\(int\\)|short \\(\\))"
  66     gdb_test "ptype top" "(short|int) \\((|void|int|<non-float parameter>|<non-float parameter>, <non-float parameter>)\\)"
  67
  68     gdb_test "p middle" \
  69         "\{(<(text variable|function), no debug info>|short \\(int\\)|short \\(\\))\} \[0-9a-fx]* <\\.?middle(\\(int\\)|)>"
  70     gdb_test "whatis middle" \
  71         "(<(text variable|function), no debug info>|short \\(int\\)|short \\(\\))"
  72     gdb_test "ptype middle" "(short|int) \\((|void|int|<non-float parameter>|<non-float parameter>, <non-float parameter>)\\)"
  73
  74     gdb_test "p dataglobal" "= 3"
  75     gdb_test "whatis dataglobal" \
  76         "<(data variable|variable), no debug info>|int"
  77     gdb_test "ptype dataglobal" "<(data variable|variable), no debug info>|int"
  78
  79     # The only symbol xcoff puts out for statics is for the TOC entry.
  80     # Possible, but hairy, for gdb to deal.  Right now it doesn't, it
  81     # doesn't know the variables exist at all.
  82     setup_xfail "rs6000*-*-aix*"
  83     setup_xfail "powerpc*-*-aix*"
  84
  85     gdb_test "p datalocal" "= 4"
  86
  87     setup_xfail "rs6000*-*-aix*"
  88     setup_xfail "powerpc*-*-aix*"
  89
  90     gdb_test "whatis datalocal" "<(data variable|variable), no debug info>"
  91
  92     setup_xfail "rs6000*-*-aix*"
  93     setup_xfail "powerpc*-*-aix*"
  94
  95     gdb_test "ptype datalocal" "<(data variable|variable), no debug info>"
  96     gdb_test "p bssglobal" "= 0"
  97     gdb_test "whatis bssglobal" "<(data variable|variable), no debug info>|int"
  98     gdb_test "ptype bssglobal" "<(data variable|variable), no debug info>|int"
  99
 100     setup_xfail "rs6000*-*-aix*"
 101     setup_xfail "powerpc*-*-aix*"
 102
 103     gdb_test "p bsslocal" "= 0"
 104
 105     setup_xfail "rs6000*-*-aix*"
 106     setup_xfail "powerpc*-*-aix*"
 107
 108     gdb_test "whatis bsslocal" "<(data variable|variable), no debug info>"
 109
 110     setup_xfail "rs6000*-*-aix*"
 111     setup_xfail "powerpc*-*-aix*"
 112
 113     gdb_test "ptype bsslocal" "<(data variable|variable), no debug info>"
 114
 115     gdb_test "backtrace 10" "#0.*inner.*#1.*middle.*#2.*top.*#3.*main.*" \
 116         "backtrace from inner in nodebug.exp"
 117     # Or if that doesn't work, at least hope for the external symbols
 118     # Commented out because if we aren't going to xfail the above test
 119     # ever, why bother with a weaker test?
 120     #gdb_test "backtrace 10" "#0.*inner.*#1.*#2.*top.*#3.*main.*" \
 121         #    "backtrace from inner in nodebug.exp for externals"
 122
 123     # This test is not as obscure as it might look.  `p getenv ("TERM")'
 124     # is a real-world example, at least on many systems.
 125     if [target_info exists gdb,cannot_call_functions] {
 126         setup_xfail "*-*-*" 2416
 127         fail "p/c array_index(\"abcdef\",2)"
 128     } else {
 129         # We need to up this because this can be really slow on some boards.
 130         # (malloc() is called as part of the test).
 131         set prev_timeout $timeout
 132         set timeout 60
 133         gdb_test {p/c array_index("abcdef",2)} " = 99 'c'"
 134         set timeout $prev_timeout
 135     }
 136
 137     # Now, try that we can give names of file-local symbols which happen
 138     # to be unique, and have it still work
 139     if [runto middle] then {
 140         gdb_test "backtrace 10" "#0.*middle.*#1.*top.*#2.*main.*" \
 141             "backtrace from middle in nodebug.exp"
 142     }
 143 }