gdb/testsuite/gdb.base/shlib-call.exp

   1 #   Copyright 1997, 1998, 1999, 2000, 2004, 2007, 2008, 2009, 2010
   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 # file to test calls into shared libraries
  18 # the source files for this test are:
  19 #
  20 # shmain.c
  21 # shr1.c (shared lib)
  22 # shr2.c (shared lib)
  23 # ss.h (header for shr2.c)
  24 #
  25 # file written by Elena Zannoni: elz@ch.apollo.com
  26 #
  27
  28 #debug shmain
  29 #prop lib shr1.sl
  30 #prop lib shr2.sl
  31
  32 if $tracelevel then {
  33         strace $tracelevel
  34 }
  35
  36
  37 if {[skip_shlib_tests]} {
  38     return 0
  39 }
  40
  41 set testfile "shmain"
  42 set libfile1 "shr1"
  43 set libfile2 "shr2"
  44 set srcfile  ${srcdir}/${subdir}/${testfile}.c
  45 set lib1src  ${srcdir}/${subdir}/${libfile1}.c
  46 set lib2src  ${srcdir}/${subdir}/${libfile2}.c
  47 set lib1     ${objdir}/${subdir}/${libfile1}.sl
  48 set lib2     ${objdir}/${subdir}/${libfile2}.sl
  49 set binfile  ${objdir}/${subdir}/${testfile}
  50
  51 set lib_opts "debug"
  52 set exec_opts [list debug shlib=${lib1} shlib=${lib2}]
  53
  54 if [get_compiler_info ${binfile}] {
  55     return -1
  56 }
  57
  58 if { [gdb_compile_shlib ${lib1src} ${lib1} $lib_opts] != ""
  59      || [gdb_compile_shlib ${lib2src} ${lib2} $lib_opts] != ""
  60      || [gdb_compile ${srcfile} ${binfile} executable $exec_opts] != ""} {
  61     untested "Could not compile $lib1, $lib2, or $srcfile."
  62     return -1
  63 }
  64
  65 # Start with a fresh gdb.
  66
  67 gdb_exit
  68 gdb_start
  69 gdb_reinitialize_dir $srcdir/$subdir
  70 gdb_load ${binfile}
  71 gdb_load_shlibs $lib1 $lib2
  72
  73 gdb_test_no_output "set print sevenbit-strings"
  74 gdb_test_no_output "set print address off"
  75 gdb_test_no_output "set width 0"
  76
  77
  78 if ![runto_main] then {
  79         perror "C function calling tests suppressed"
  80 }
  81
  82
  83 #step -over
  84
  85 gdb_test "next" "g = shr1\\(g\\);" "next to shr1"
  86
  87 #print g
  88
  89 gdb_test "print g" "\[0-9\]* = 1" "print g"
  90
  91 #step -over
  92 if ![gdb_skip_stdio_test "next over shr1"] {
  93     gdb_test "next" \
  94         "address of sgs is $hex.*g = shr2\\(g\\);" \
  95         "next over shr1"
  96 } else {
  97     gdb_test "next" ".*" ""
  98 }
  99
 100
 101 #print g
 102 gdb_test "print g" "\[0-9\]* = 2" "print g"
 103
 104 #print shr1(1)
 105 if ![gdb_skip_stdio_test "print shr1(1)"] {
 106     gdb_test "print shr1(1)" \
 107         "address of sgs is $hex.*\[0-9\]* = 2" \
 108         "print shr1(1)"
 109 }
 110
 111 #print shr1(g)
 112 if ![gdb_skip_stdio_test "print shr1(g)"] {
 113     gdb_test "print shr1(g)" \
 114         "address of sgs is $hex.*\[0-9\]* = 4" \
 115         "print shr1(g)"
 116 }
 117
 118 #break shr2
 119 #go
 120 gdb_test "break shr2" \
 121     "Breakpoint.*file.*shr2.c, line.*" \
 122     "breakpoint function shr2"
 123
 124 gdb_test "continue" \
 125         "Continuing\\..*Breakpoint \[0-9\]+, shr2 \\(.*\\) at.*shr2\\.c:7.*7.*return 2.x;" \
 126         "run until breakpoint set at a function"
 127
 128
 129 #print shr1(1)
 130 if ![gdb_skip_stdio_test "print shr1(1) 2nd time"] {
 131     gdb_test "print shr1(1)" \
 132         "address of sgs is $hex.*\[0-9\]* = 2" \
 133         "print shr1(1) 2nd time"
 134 }
 135
 136 #print mainshr1(1)
 137 gdb_test "print mainshr1(1)" "\[0-9\]* = 2" \
 138     "print mainshr1(1) from shlib func"
 139
 140 #step -return
 141 # A step at this point will either take us entirely out of
 142 # the function or into the function's epilogue.  The exact
 143 # behavior will differ depending upon upon whether or not
 144 # the compiler emits line number information for the epilogue.
 145 gdb_test_multiple "step" "step out of shr2 to main" {
 146     -re "main \\(\\) at.*g = mainshr1\\(g\\);.*$gdb_prompt $" {
 147         pass "step out of shr2 to main"
 148     }
 149     -re ".*\\\}.*$gdb_prompt $" {
 150         pass "step out of shr2 to main (stopped in shr2 epilogue)"
 151         gdb_test "step" \
 152             "main \\(\\) at.*g = mainshr1\\(g\\);" \
 153             "step out of shr2 epilogue to main"
 154     }
 155 }
 156
 157 #print mainshr1(1)
 158 gdb_test "print mainshr1(1)" "\[0-9\]* = 2" "print mainshr1(1)"
 159
 160 #step
 161 gdb_test "step" "mainshr1 \\(g=4\\) at.*return 2.g;" \
 162     "step into mainshr1"
 163
 164 # Start with a fresh gdb.
 165
 166 gdb_exit
 167 gdb_start
 168 gdb_reinitialize_dir $srcdir/$subdir
 169 gdb_load ${binfile}
 170 gdb_test_no_output "set print sevenbit-strings"
 171 gdb_test_no_output "set print address off"
 172 gdb_test_no_output "set width 0"
 173
 174
 175 # PR's 16495, 18213
 176 # test that we can re-set breakpoints in shared libraries
 177 gdb_breakpoint "shr1" "allow-pending"
 178
 179 # FIXME: should not send "run" explicitly.  Non-portable.
 180
 181 if ![is_remote target] {
 182   gdb_test "run" "Starting program:.*Breakpoint .,.*" \
 183         "run to bp in shared library"
 184
 185   gdb_test "cont" ".*Program exited normally..*"
 186
 187   gdb_test "run" "Starting program:.*Breakpoint .,.*" \
 188         "re-run to bp in shared library (PR's 16495, 18213)"
 189
 190   gdb_test "cont" ".*Program exited normally..*"
 191 }
 192
 193 return 0