gdb/testsuite/gdb.base/prelink.exp

   1 # Copyright 2006-2021 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 3 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, see <http://www.gnu.org/licenses/>.
  15
  16 # Please email any bugs, comments, and/or additions to this file to:
  17 # bug-gdb@gnu.org
  18
  19 # This file was written by Alexandre Oliva <aoliva@redhat.com>
  20
  21
  22 if { ![isnative] || [is_remote host] || [skip_shlib_tests]} {
  23     return
  24 }
  25
  26 if [get_compiler_info] {
  27     return -1
  28 }
  29
  30 if {$gcc_compiled == 0} {
  31     return -1
  32 }
  33
  34 load_lib prelink-support.exp
  35
  36 set testfile "prelink"
  37
  38 set libsrcfile ${testfile}-lib.c
  39 set libfile [standard_output_file ${testfile}.so]
  40
  41 # Use -soname so that the new library gets copied by build_executable_own_libs.
  42
  43 if { [gdb_compile_shlib "${srcdir}/${subdir}/${libsrcfile}" "${libfile}" [list debug "ldflags=-Wl,-soname,[file tail ${libfile}]"]] != ""} {
  44     # If creating the shared library fails, maybe we don't have the right tools
  45     return -1
  46 }
  47
  48 set srcfile ${testfile}.c
  49 set executable ${testfile}t
  50 set binfile [standard_output_file ${executable}]
  51 set prelink_args [build_executable_own_libs ${testfile}.exp $executable $srcfile [list debug "ldflags=-Wl,${libfile},-rpath,[file dirname ${libfile}]"]]
  52 if {$prelink_args == ""} {
  53     return -1
  54 }
  55
  56 set test "split debug of executable"
  57 if [gdb_gnu_strip_debug $binfile] {
  58     fail $test
  59 } else {
  60     pass $test
  61 }
  62
  63 if ![prelink_yes $prelink_args] {
  64     # Maybe we don't have prelink.
  65     return -1
  66 }
  67
  68 set found 0
  69 set coredir "[standard_output_file coredir.[getpid]]"
  70 file mkdir $coredir
  71 catch "system \"(cd ${coredir}; ulimit -c unlimited; ${binfile}; true) >/dev/null 2>&1\""
  72
  73 foreach i "${coredir}/core ${coredir}/core.coremaker.c ${binfile}.core" {
  74     if [remote_file build exists $i] {
  75         remote_exec build "mv $i [standard_output_file prelink.core]"
  76         set found 1
  77     }
  78 }
  79 # Check for "core.PID".
  80 if { $found == 0 } {
  81     set names [glob -nocomplain -directory $coredir core.*]
  82     if {[llength $names] == 1} {
  83         set corefile [file join $coredir [lindex $names 0]]
  84         remote_exec build "mv $corefile [standard_output_file prelink.core]"
  85         set found 1
  86     }
  87 }
  88
  89 # Try to clean up after ourselves.
  90 remote_file build delete [file join $coredir coremmap.data]
  91 remote_exec build "rmdir $coredir"
  92
  93 if { $found == 0  } {
  94     warning "can't generate a core file - prelink tests suppressed - check ulimit -c"
  95     return 0
  96 }
  97
  98 # Relink $libfile to a different address.
  99 if ![prelink_yes $prelink_args] {
 100     return -1
 101 }
 102
 103 # Start with a fresh gdb
 104
 105 clean_restart $executable
 106
 107 # Print the "adjusting expectations" message.
 108 gdb_test_no_output "set verbose on"
 109
 110 gdb_test "core-file [standard_output_file prelink.core]" "Using PIC \\(Position Independent Code\\) prelink displacement 0x\[^0\]\[0-9a-f\]* for \[^\r\n\]*[file tail ${libfile}].*" "seen displacement message"
 111
 112 gdb_test "p &bssvar == bssvarp" " = 1" ".dynbss vs. .bss address shift"