gdb/testsuite/gdb.base/so-indr-cl.exp

   1 #   Copyright (C) 1997, 1998 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 if $tracelevel then {
  21         strace $tracelevel
  22         }
  23
  24 set prms_id 0
  25 set bug_id 0
  26
  27 # are we on a target board
  28 if ![isnative] then {
  29     return
  30 }
  31
  32 # This test is presently only valid on HP-UX, since it requires
  33 # that we use HP-UX-specific compiler & linker options to build
  34 # the testcase.
  35 #
  36 setup_xfail "*-*-*"
  37 clear_xfail "hppa*-*-*hpux*"
  38
  39 set libfile "solib"
  40 set testfile "so-indr-cl"
  41 set srcfile ${testfile}.c
  42 set binfile ${objdir}/${subdir}/${testfile}
  43
  44 if [get_compiler_info ${binfile}] {
  45     return -1
  46 }
  47
  48 # Build the shared libraries this test case needs.
  49 #
  50 #cd ${subdir}
  51 #remote_exec build "$CC -g +z -c ${libfile}1.c -o ${libfile}1.o"
  52
  53
  54 if {$gcc_compiled == 0} {
  55     if [istarget "hppa*-hp-hpux*"] then {
  56         set additional_flags "additional_flags=+z"
  57     } else {
  58         # don't know what the compiler is...
  59         set additional_flags ""
  60     }
  61 } else {
  62     set additional_flags "additional_flags=-fpic"
  63 }
  64 if {[gdb_compile "${srcdir}/${subdir}/${libfile}1.c" "${objdir}/${subdir}/${libfile}1.o" object [list debug $additional_flags]] != ""} {
  65     perror "Couldn't compile ${libfile}1.c"
  66     return -1
  67 }
  68
  69 if [istarget "hppa*-hp-hpux*"] then {
  70     remote_exec build "ld -b ${objdir}/${subdir}/${libfile}1.o -o ${objdir}/${subdir}/${libfile}1.sl"
  71 } else {
  72     set additional_flags "additional_flags=-shared"
  73     gdb_compile "${objdir}/${subdir}/${libfile}1.o" "${objdir}/${subdir}/${libfile}1.sl" executable [list debug $additional_flags]
  74 }
  75
  76 # Build the test case
  77 #remote_exec build "$CC -Aa -g ${srcfile} ${libfile}1.sl -o ${binfile}"
  78
  79
  80 if {$gcc_compiled == 0} {
  81     if [istarget "hppa*-hp-hpux*"] then {
  82         set additional_flags "additional_flags=-Ae"
  83     } else {
  84         # don't know what the compiler is, hope for the best, maybe it's ANSI...
  85         set additional_flags ""
  86     }
  87 } else {
  88     set additional_flags ""
  89 }
  90 if {[gdb_compile "${srcdir}/${subdir}/${srcfile} ${objdir}/${subdir}/${libfile}1.sl" "${binfile}" executable [list debug $additional_flags]] != ""} {
  91     perror "Couldn't build ${binfile}"
  92     return -1
  93 }
  94
  95 #cd ..
  96
  97 # Start with a fresh gdb
  98
  99 gdb_exit
 100 gdb_start
 101 gdb_reinitialize_dir $srcdir/$subdir
 102 gdb_load ${binfile}
 103
 104 # This program implicitly loads SOM shared libraries.  We wish to test
 105 # whether a user can set breakpoints in a shlib before running the
 106 # program, where the program doesn't directly call the shlib, but
 107 # indirectly does via passing its address to another function.
 108 #
 109 # ??rehrauer: Currently, this doesn't work, but we do catch the case
 110 # and explicitly disallow it.  The reason it fails appears to be that
 111 #
 112 #  [1] gdb consults only the linker symbol table in this scenario, and
 113 #  [2] For a shlib function that is only indirectly called from the
 114 #      main a.out, there is in the linker symbol table a stub whose
 115 #      address is negative.  Possibly this is to be interpreted as
 116 #      an index into the DLT??
 117 #
 118 send_gdb "break solib_main\n"
 119 gdb_expect {
 120   -re "Cannot break on solib_main without a running program.*$gdb_prompt $"\
 121           {pass "break on indirect solib call before running"}
 122   -re "$gdb_prompt $"\
 123           {fail "break on indirect solib call before running"}
 124   timeout {fail "(timeout) break on indirect solib call before running"}
 125 }
 126
 127 # However, if we do run to the program's main, we then ought to be
 128 # able to set a breakpoint on the indirectly called function.  (Apparently,
 129 # once the inferior is running, gdb consults the debug info rather than
 130 # the linker symbol table, and is able to find the correct address.)
 131 #
 132 if ![runto_main] then { fail "indirect solib call tests suppressed" }
 133
 134 # Verify that we can step over the first shlib call.
 135 #
 136 send_gdb "break solib_main\n"
 137 gdb_expect {
 138   -re ".*\[Bb\]reakpoint \[0-9\]* at 0x\[0-9a-fA-F\]*: file.*${libfile}1.c.*$gdb_prompt $"\
 139           {pass "break on indirect solib call after running"}
 140   -re "$gdb_prompt $"\
 141           {fail "break on indirect solib call after running"}
 142   timeout {fail "(timeout) break on indirect solib call after running"}
 143 }
 144
 145 gdb_exit
 146 return 0