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

   1 #   Copyright 1997, 1998, 1999, 2000, 2007, 2008, 2009
   2 #   Free Software Foundation, Inc.
   3
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  16
  17 if $tracelevel then {
  18         strace $tracelevel
  19         }
  20
  21 set prms_id 0
  22 set bug_id 0
  23
  24 # are we on a target board
  25 if ![isnative] then {
  26     return
  27 }
  28
  29 # This test is presently only valid on HP-UX, since it requires
  30 # that we use HP-UX-specific compiler & linker options to build
  31 # the testcase.
  32 #
  33 if {! [istarget "hppa*-*-*hpux*"] } {
  34     return
  35 }
  36
  37 set libfile "solib"
  38 set testfile "so-indr-cl"
  39 set srcfile ${testfile}.c
  40 set binfile ${objdir}/${subdir}/${testfile}
  41
  42 if [get_compiler_info ${binfile}] {
  43     return -1
  44 }
  45
  46 # Build the shared libraries this test case needs.
  47 #
  48 #cd ${subdir}
  49 #remote_exec build "$CC -g +z -c ${libfile}1.c -o ${libfile}1.o"
  50
  51
  52 if {$hp_cc_compiler || $hp_aCC_compiler} {
  53     set additional_flags "additional_flags=+z"
  54 } else {
  55     set additional_flags "additional_flags=-fpic"
  56 }
  57 if {[gdb_compile "${srcdir}/${subdir}/${libfile}1.c" "${objdir}/${subdir}/${libfile}1.o" object [list debug $additional_flags]] != ""} {
  58     perror "Couldn't compile ${libfile}1.c"
  59     return -1
  60 }
  61
  62 if [istarget "hppa*-hp-hpux*"] then {
  63     remote_exec build "ld -b ${objdir}/${subdir}/${libfile}1.o -o ${objdir}/${subdir}/${libfile}1.sl"
  64 } else {
  65     set additional_flags "additional_flags=-shared"
  66     gdb_compile "${objdir}/${subdir}/${libfile}1.o" "${objdir}/${subdir}/${libfile}1.sl" executable [list debug $additional_flags]
  67 }
  68
  69 # Build the test case
  70 #remote_exec build "$CC -Aa -g ${srcfile} ${libfile}1.sl -o ${binfile}"
  71
  72
  73 if {$hp_cc_compiler} {
  74     set additional_flags "additional_flags=-Ae"
  75 } else {
  76     set additional_flags ""
  77 }
  78 if {[gdb_compile "${srcdir}/${subdir}/${srcfile} ${objdir}/${subdir}/${libfile}1.sl" "${binfile}" executable [list debug $additional_flags]] != ""} {
  79     perror "Couldn't build ${binfile}"
  80     return -1
  81 }
  82
  83 #cd ..
  84
  85 # Start with a fresh gdb
  86
  87 gdb_exit
  88 gdb_start
  89 gdb_reinitialize_dir $srcdir/$subdir
  90 gdb_load ${binfile}
  91
  92 # This program implicitly loads SOM shared libraries.  We wish to test
  93 # whether a user can set breakpoints in a shlib before running the
  94 # program, where the program doesn't directly call the shlib, but
  95 # indirectly does via passing its address to another function.
  96 #
  97 # ??rehrauer: Currently, this doesn't work, but we do catch the case
  98 # and explicitly disallow it.  The reason it fails appears to be that
  99 #
 100 #  [1] gdb consults only the linker symbol table in this scenario, and
 101 #  [2] For a shlib function that is only indirectly called from the
 102 #      main a.out, there is in the linker symbol table a stub whose
 103 #      address is negative.  Possibly this is to be interpreted as
 104 #      an index into the DLT??
 105 #
 106 send_gdb "break solib_main\n"
 107 gdb_expect {
 108   -re "Cannot break on solib_main without a running program.*$gdb_prompt $"\
 109           {pass "break on indirect solib call before running"}
 110   -re "Breakpoint.*deferred.*\\(\"solib_main\" was not found.*$gdb_prompt $"\
 111           {pass "break on indirect solib call before running 2"}
 112   -re "$gdb_prompt $"\
 113           {fail "break on indirect solib call before running"}
 114   timeout {fail "(timeout) break on indirect solib call before running"}
 115 }
 116
 117 # However, if we do run to the program's main, we then ought to be
 118 # able to set a breakpoint on the indirectly called function.  (Apparently,
 119 # once the inferior is running, gdb consults the debug info rather than
 120 # the linker symbol table, and is able to find the correct address.)
 121 #
 122 if ![runto_main] then { fail "indirect solib call tests suppressed" }
 123
 124 # Verify that we can step over the first shlib call.
 125 #
 126 send_gdb "break solib_main\n"
 127 gdb_expect {
 128   -re ".*\[Bb\]reakpoint \[0-9\]* at 0x\[0-9a-fA-F\]*: file.*${libfile}1.c.*$gdb_prompt $"\
 129           {pass "break on indirect solib call after running"}
 130   -re "$gdb_prompt $"\
 131           {fail "break on indirect solib call after running"}
 132   timeout {fail "(timeout) break on indirect solib call after running"}
 133 }
 134
 135 gdb_exit
 136 return 0