gdb/testsuite/gdb.base/prelink.exp

   1 # Copyright 2006-2024 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 require isnative allow_shlib_tests is_c_compiler_gcc
  23 require {!is_remote host}
  24
  25 load_lib prelink-support.exp
  26
  27 set testfile "prelink"
  28
  29 set libsrcfile ${testfile}-lib.c
  30 set libfile [standard_output_file ${testfile}.so]
  31
  32 # Use -soname so that the new library gets copied by build_executable_own_libs.
  33
  34 if { [gdb_compile_shlib "${srcdir}/${subdir}/${libsrcfile}" "${libfile}" [list debug "ldflags=-Wl,-soname,[file tail ${libfile}]"]] != ""} {
  35     # If creating the shared library fails, maybe we don't have the right tools
  36     return -1
  37 }
  38
  39 set srcfile ${testfile}.c
  40 set executable ${testfile}t
  41 set binfile [standard_output_file ${executable}]
  42 set prelink_args [build_executable_own_libs ${testfile}.exp $executable $srcfile [list debug "ldflags=-Wl,${libfile},-rpath,[file dirname ${libfile}]"]]
  43 if {$prelink_args == ""} {
  44     return -1
  45 }
  46
  47 set test "split debug of executable"
  48 if [gdb_gnu_strip_debug $binfile] {
  49     fail $test
  50 } else {
  51     pass $test
  52 }
  53
  54 if ![prelink_yes $prelink_args] {
  55     # Maybe we don't have prelink.
  56     return -1
  57 }
  58
  59 set found 0
  60 set coredir "[standard_output_file coredir.[getpid]]"
  61 file mkdir $coredir
  62 catch "system \"(cd ${coredir}; ulimit -c unlimited; ${binfile}; true) >/dev/null 2>&1\""
  63
  64 foreach i "${coredir}/core ${coredir}/core.coremaker.c ${binfile}.core" {
  65     if [remote_file build exists $i] {
  66         remote_exec build "mv $i [standard_output_file prelink.core]"
  67         set found 1
  68     }
  69 }
  70 # Check for "core.PID".
  71 if { $found == 0 } {
  72     set names [glob -nocomplain -directory $coredir core.*]
  73     if {[llength $names] == 1} {
  74         set corefile [file join $coredir [lindex $names 0]]
  75         remote_exec build "mv $corefile [standard_output_file prelink.core]"
  76         set found 1
  77     }
  78 }
  79
  80 # Try to clean up after ourselves.
  81 remote_file build delete [file join $coredir coremmap.data]
  82 remote_exec build "rmdir $coredir"
  83
  84 if { $found == 0  } {
  85     warning "can't generate a core file - prelink tests suppressed - check ulimit -c"
  86     return 0
  87 }
  88
  89 # Relink $libfile to a different address.
  90 if ![prelink_yes $prelink_args] {
  91     return -1
  92 }
  93
  94 # Start with a fresh gdb
  95
  96 clean_restart $executable
  97
  98 # Print the "adjusting expectations" message.
  99 gdb_test_no_output "set verbose on"
 100
 101 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"
 102
 103 gdb_test "p &bssvar == bssvarp" " = 1" ".dynbss vs. .bss address shift"