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

   1 #   Copyright 1997, 1998, 1999, 2000, 2007, 2008, 2009, 2010, 2011
   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
  22 # are we on a target board
  23 if ![isnative] then {
  24     return
  25 }
  26
  27 # This test is presently only valid on HP-UX, since it requires
  28 # that we use HP-UX-specific compiler & linker options to build
  29 # the testcase.
  30 #
  31 if {! [istarget "hppa*-*-*hpux*"] } {
  32     return
  33 }
  34
  35 set libfile "solib"
  36 set testfile "so-indr-cl"
  37 set srcfile ${testfile}.c
  38 set binfile ${objdir}/${subdir}/${testfile}
  39
  40 if [get_compiler_info ${binfile}] {
  41     return -1
  42 }
  43
  44 # Build the shared libraries this test case needs.
  45 #
  46 #cd ${subdir}
  47 #remote_exec build "$CC -g +z -c ${libfile}1.c -o ${libfile}1.o"
  48
  49
  50 if {$hp_cc_compiler || $hp_aCC_compiler} {
  51     set additional_flags "additional_flags=+z"
  52 } else {
  53     set additional_flags "additional_flags=-fpic"
  54 }
  55 if {[gdb_compile "${srcdir}/${subdir}/${libfile}1.c" "${objdir}/${subdir}/${libfile}1.o" object [list debug $additional_flags]] != ""} {
  56     perror "Couldn't compile ${libfile}1.c"
  57     return -1
  58 }
  59
  60 if [istarget "hppa*-hp-hpux*"] then {
  61     remote_exec build "ld -b ${objdir}/${subdir}/${libfile}1.o -o ${objdir}/${subdir}/${libfile}1.sl"
  62 } else {
  63     set additional_flags "additional_flags=-shared"
  64     gdb_compile "${objdir}/${subdir}/${libfile}1.o" "${objdir}/${subdir}/${libfile}1.sl" executable [list debug $additional_flags]
  65 }
  66
  67 # Build the test case
  68 #remote_exec build "$CC -Aa -g ${srcfile} ${libfile}1.sl -o ${binfile}"
  69
  70
  71 if {$hp_cc_compiler} {
  72     set additional_flags "additional_flags=-Ae"
  73 } else {
  74     set additional_flags ""
  75 }
  76 if {[gdb_compile "${srcdir}/${subdir}/${srcfile} ${objdir}/${subdir}/${libfile}1.sl" "${binfile}" executable [list debug $additional_flags]] != ""} {
  77     perror "Couldn't build ${binfile}"
  78     return -1
  79 }
  80
  81 #cd ..
  82
  83 # Start with a fresh gdb
  84
  85 gdb_exit
  86 gdb_start
  87 gdb_reinitialize_dir $srcdir/$subdir
  88 gdb_load ${binfile}
  89
  90 # This program implicitly loads SOM shared libraries.  We wish to test
  91 # whether a user can set breakpoints in a shlib before running the
  92 # program, where the program doesn't directly call the shlib, but
  93 # indirectly does via passing its address to another function.
  94 #
  95 # ??rehrauer: Currently, this doesn't work, but we do catch the case
  96 # and explicitly disallow it.  The reason it fails appears to be that
  97 #
  98 #  [1] gdb consults only the linker symbol table in this scenario, and
  99 #  [2] For a shlib function that is only indirectly called from the
 100 #      main a.out, there is in the linker symbol table a stub whose
 101 #      address is negative.  Possibly this is to be interpreted as
 102 #      an index into the DLT??
 103 #
 104 send_gdb "break solib_main\n"
 105 gdb_expect {
 106   -re "Cannot break on solib_main without a running program.*$gdb_prompt $"\
 107           {pass "break on indirect solib call before running"}
 108   -re "Breakpoint.*deferred.*\\(\"solib_main\" was not found.*$gdb_prompt $"\
 109           {pass "break on indirect solib call before running 2"}
 110   -re "$gdb_prompt $"\
 111           {fail "break on indirect solib call before running"}
 112   timeout {fail "(timeout) break on indirect solib call before running"}
 113 }
 114
 115 # However, if we do run to the program's main, we then ought to be
 116 # able to set a breakpoint on the indirectly called function.  (Apparently,
 117 # once the inferior is running, gdb consults the debug info rather than
 118 # the linker symbol table, and is able to find the correct address.)
 119 #
 120 if ![runto_main] then { fail "indirect solib call tests suppressed" }
 121
 122 # Verify that we can step over the first shlib call.
 123 #
 124 send_gdb "break solib_main\n"
 125 gdb_expect {
 126   -re ".*\[Bb\]reakpoint \[0-9\]* at 0x\[0-9a-fA-F\]*: file.*${libfile}1.c.*$gdb_prompt $"\
 127           {pass "break on indirect solib call after running"}
 128   -re "$gdb_prompt $"\
 129           {fail "break on indirect solib call after running"}
 130   timeout {fail "(timeout) break on indirect solib call after running"}
 131 }
 132
 133 gdb_exit
 134 return 0