gnu/dist/gdb6/gdb/testsuite/gdb.base/so-indr-cl.exp

   1 #   Copyright 1997, 1998, 1999, 2000 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 if {! [istarget "hppa*-*-*hpux*"] } {
  37     return
  38 }
  39
  40 set libfile "solib"
  41 set testfile "so-indr-cl"
  42 set srcfile ${testfile}.c
  43 set binfile ${objdir}/${subdir}/${testfile}
  44
  45 if [get_compiler_info ${binfile}] {
  46     return -1
  47 }
  48
  49 # Build the shared libraries this test case needs.
  50 #
  51 #cd ${subdir}
  52 #remote_exec build "$CC -g +z -c ${libfile}1.c -o ${libfile}1.o"
  53
  54
  55 if {$hp_cc_compiler || $hp_aCC_compiler} {
  56     set additional_flags "additional_flags=+z"
  57 } else {
  58     set additional_flags "additional_flags=-fpic"
  59 }
  60 if {[gdb_compile "${srcdir}/${subdir}/${libfile}1.c" "${objdir}/${subdir}/${libfile}1.o" object [list debug $additional_flags]] != ""} {
  61     perror "Couldn't compile ${libfile}1.c"
  62     return -1
  63 }
  64
  65 if [istarget "hppa*-hp-hpux*"] then {
  66     remote_exec build "ld -b ${objdir}/${subdir}/${libfile}1.o -o ${objdir}/${subdir}/${libfile}1.sl"
  67 } else {
  68     set additional_flags "additional_flags=-shared"
  69     gdb_compile "${objdir}/${subdir}/${libfile}1.o" "${objdir}/${subdir}/${libfile}1.sl" executable [list debug $additional_flags]
  70 }
  71
  72 # Build the test case
  73 #remote_exec build "$CC -Aa -g ${srcfile} ${libfile}1.sl -o ${binfile}"
  74
  75
  76 if {$hp_cc_compiler} {
  77     set additional_flags "additional_flags=-Ae"
  78 } else {
  79     set additional_flags ""
  80 }
  81 if {[gdb_compile "${srcdir}/${subdir}/${srcfile} ${objdir}/${subdir}/${libfile}1.sl" "${binfile}" executable [list debug $additional_flags]] != ""} {
  82     perror "Couldn't build ${binfile}"
  83     return -1
  84 }
  85
  86 #cd ..
  87
  88 # Start with a fresh gdb
  89
  90 gdb_exit
  91 gdb_start
  92 gdb_reinitialize_dir $srcdir/$subdir
  93 gdb_load ${binfile}
  94
  95 # This program implicitly loads SOM shared libraries.  We wish to test
  96 # whether a user can set breakpoints in a shlib before running the
  97 # program, where the program doesn't directly call the shlib, but
  98 # indirectly does via passing its address to another function.
  99 #
 100 # ??rehrauer: Currently, this doesn't work, but we do catch the case
 101 # and explicitly disallow it.  The reason it fails appears to be that
 102 #
 103 #  [1] gdb consults only the linker symbol table in this scenario, and
 104 #  [2] For a shlib function that is only indirectly called from the
 105 #      main a.out, there is in the linker symbol table a stub whose
 106 #      address is negative.  Possibly this is to be interpreted as
 107 #      an index into the DLT??
 108 #
 109 send_gdb "break solib_main\n"
 110 gdb_expect {
 111   -re "Cannot break on solib_main without a running program.*$gdb_prompt $"\
 112           {pass "break on indirect solib call before running"}
 113   -re "Breakpoint.*deferred.*\\(\"solib_main\" was not found.*$gdb_prompt $"\
 114           {pass "break on indirect solib call before running 2"}
 115   -re "$gdb_prompt $"\
 116           {fail "break on indirect solib call before running"}
 117   timeout {fail "(timeout) break on indirect solib call before running"}
 118 }
 119
 120 # However, if we do run to the program's main, we then ought to be
 121 # able to set a breakpoint on the indirectly called function.  (Apparently,
 122 # once the inferior is running, gdb consults the debug info rather than
 123 # the linker symbol table, and is able to find the correct address.)
 124 #
 125 if ![runto_main] then { fail "indirect solib call tests suppressed" }
 126
 127 # Verify that we can step over the first shlib call.
 128 #
 129 send_gdb "break solib_main\n"
 130 gdb_expect {
 131   -re ".*\[Bb\]reakpoint \[0-9\]* at 0x\[0-9a-fA-F\]*: file.*${libfile}1.c.*$gdb_prompt $"\
 132           {pass "break on indirect solib call after running"}
 133   -re "$gdb_prompt $"\
 134           {fail "break on indirect solib call after running"}
 135   timeout {fail "(timeout) break on indirect solib call after running"}
 136 }
 137
 138 gdb_exit
 139 return 0