gdb/testsuite/gdb.base/solib-corrupted.exp

   1 # Copyright 2010-2021 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 if {[skip_shlib_tests]} {
  17     return 0
  18 }
  19
  20 if {[is_remote target]} {
  21     # gdbserver prints the warning message but expect is parsing only the GDB
  22     # output, not the gdbserver output.
  23     return 0
  24 }
  25
  26 set testfile "solib-corrupted"
  27 set srcfile start.c
  28
  29 if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] } {
  30     return -1
  31 }
  32
  33 if ![runto_main] {
  34     fail "can't run to main"
  35     return
  36 }
  37
  38 # With probes interface GDB no longer scans the inferior library list so its
  39 # corruption cannot be tested.  There is no way to disable the probes
  40 # interface.
  41
  42 set probes { init_start init_complete map_start reloc_complete unmap_start
  43              unmap_complete }
  44 set test "info probes"
  45 gdb_test_multiple $test $test {
  46     -re "^stap\[ \t\]+rtld\[ \t\]+(?:rtld_)?(\[a-z_\]+)\[ \t\]" {
  47         set idx [lsearch -exact $probes $expect_out(1,string)]
  48         if { $idx >= 0 } {
  49             set probes [lreplace $probes $idx $idx]
  50         }
  51         exp_continue
  52     }
  53     -re "^\[^\r\n\]*\r\n" {
  54         exp_continue
  55     }
  56     -re "^$gdb_prompt $" {
  57     }
  58 }
  59 if { [llength $probes] == 0 } {
  60     xfail $test
  61     untested "GDB is using probes"
  62     return
  63 }
  64
  65 gdb_test "info sharedlibrary" "From * To .*" "normal list"
  66
  67 set no_glibc_debuginfo_re1 "No symbol \"_r_debug\" in current context\\."
  68 set no_glibc_debuginfo_re2 \
  69     [concat \
  70          "Attempt to extract a component of a value that is not a structure" \
  71          " pointer\\."]
  72 set no_glibc_debuginfo_re3 \
  73     "'_r_debug' has unknown type; cast it to its declared type"
  74 set no_glibc_debuginfo_re \
  75     "($no_glibc_debuginfo_re1|$no_glibc_debuginfo_re2|$no_glibc_debuginfo_re3)"
  76
  77 # GDB checks there for matching L_PREV.
  78 set test "make solibs looping"
  79 gdb_test_multiple "p/x _r_debug->r_map->l_next = _r_debug->r_map" $test {
  80     -re "$no_glibc_debuginfo_re\r\n$gdb_prompt $" {
  81         # glibc debug info is not available and it is too difficult to find and
  82         # parse it from this testcase without the gdb supporting functions.
  83         xfail $test
  84         untested "no _r_debug symbol has been found"
  85         return
  86     }
  87     -re " = 0x\[0-9a-f\]+\r\n$gdb_prompt $" {
  88         pass $test
  89     }
  90 }
  91 gdb_test "info sharedlibrary" "warning: Corrupted shared library list: .*" "corrupted list"