| 1 | # Copyright 2002-2018 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 | # This file was written by Michael Snyder (msnyder@redhat.com) |
| 17 | # This is a test for the gdb command "generate-core-file". |
| 18 | |
| 19 | # Single-threaded test case |
| 20 | standard_testfile pthreads.c |
| 21 | set objfile $binfile.o |
| 22 | set corefile $binfile.test |
| 23 | set core0file ${binfile}0.test |
| 24 | |
| 25 | if [istarget "*-*-linux"] then { |
| 26 | set target_cflags "-D_MIT_POSIX_THREADS" |
| 27 | } else { |
| 28 | set target_cflags "" |
| 29 | } |
| 30 | |
| 31 | # Attempt to prevent -Wl,-z,relro which happens by default at least on |
| 32 | # Kubuntu-10.10. Due to PR corefiles/11804 will then GDB be unable to find |
| 33 | # libpthread, therefore libthread_db will not fail as expected |
| 34 | # on the test `zeroed-threads cannot be listed'. |
| 35 | |
| 36 | set opts [list debug] |
| 37 | if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${objfile}" object $opts] != "" |
| 38 | || ([gdb_compile_pthreads "${objfile}" "${binfile}" executable [concat $opts {additional_flags=-Wl,-z,norelro}] ] != "" |
| 39 | && [gdb_compile_pthreads "${objfile}" "${binfile}" executable $opts] != "") } { |
| 40 | return -1 |
| 41 | } |
| 42 | |
| 43 | # Now we can proceed with the real testing. |
| 44 | |
| 45 | # Start with a fresh gdb. |
| 46 | |
| 47 | clean_restart ${testfile} |
| 48 | |
| 49 | # regexp for "horizontal" text (i.e. doesn't include newline or |
| 50 | # carriage return) |
| 51 | set horiz "\[^\n\r\]*" |
| 52 | |
| 53 | # regexp for newline |
| 54 | set nl "\[\r\n\]+" |
| 55 | |
| 56 | set timeout 30 |
| 57 | |
| 58 | if { ! [ runto_main ] } then { |
| 59 | untested "could not run to main" |
| 60 | return -1 |
| 61 | } |
| 62 | |
| 63 | gdb_test_multiple "info threads" "threads are supported" { |
| 64 | -re ".* main .*$gdb_prompt $" { |
| 65 | # OK, threads are supported. |
| 66 | } |
| 67 | -re "${nl}$gdb_prompt $" { |
| 68 | unsupported "gdb does not support threads on this target" |
| 69 | return -1 |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | # Make sure thread 1 is running |
| 74 | delete_breakpoints |
| 75 | gdb_breakpoint "thread1" |
| 76 | gdb_test "continue" "Continuing.*Breakpoint.* thread1 .*" "thread 1 is running" |
| 77 | |
| 78 | # Make sure thread 2 is running |
| 79 | delete_breakpoints |
| 80 | gdb_breakpoint "thread2" |
| 81 | gdb_test "continue" "Continuing.*Breakpoint.* thread2 .*" "thread 2 is running" |
| 82 | |
| 83 | # Drop corefile |
| 84 | set core_supported [gdb_gcore_cmd "$corefile" "save a corefile"] |
| 85 | |
| 86 | if {!$core_supported} { |
| 87 | return -1 |
| 88 | } |
| 89 | |
| 90 | |
| 91 | # Test the uninitialized thread list. |
| 92 | # Provide the case of glibc td_thr_get_info handling of: |
| 93 | # /* Special case for the main thread before initialization. */ |
| 94 | |
| 95 | foreach symbol {__stack_user stack_used} { |
| 96 | set test "clear ${symbol}.next" |
| 97 | gdb_test_multiple "p *(void **) &${symbol} = 0" $test { |
| 98 | -re " = \\(void \\*\\) 0x0\r\n$gdb_prompt $" { |
| 99 | pass $test |
| 100 | } |
| 101 | -re "No symbol \"${symbol}\" in current context\\.\r\n$gdb_prompt $" { |
| 102 | xfail $test |
| 103 | # Do not do the verification. |
| 104 | set core0file "" |
| 105 | } |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | if {"$core0file" != ""} { |
| 110 | gdb_test "gcore $core0file" "Saved corefile .*" "save a zeroed-threads corefile" |
| 111 | } |
| 112 | |
| 113 | |
| 114 | # Now restart gdb and load the corefile. |
| 115 | clean_restart ${testfile} |
| 116 | |
| 117 | foreach name { corefile core0file } { with_test_prefix $name { |
| 118 | set core_loaded [gdb_core_cmd [subst $$name] "re-load generated corefile"] |
| 119 | if { $core_loaded == -1 } { |
| 120 | # No use proceeding from here. |
| 121 | continue |
| 122 | } |
| 123 | |
| 124 | # FIXME: now what can we test about the thread state? |
| 125 | # We do not know for certain that there should be at least |
| 126 | # three threads, because who knows what kind of many-to-one |
| 127 | # mapping various OS's may do? Let's assume that there must |
| 128 | # be at least two threads: |
| 129 | |
| 130 | gdb_test "info threads" "\\* 1 ${horiz}${nl} 2 ${horiz}.*" \ |
| 131 | "corefile contains at least two threads" |
| 132 | |
| 133 | # One thread in the corefile should be in the "thread2" function. |
| 134 | |
| 135 | gdb_test "info threads" ".* thread2 .*" \ |
| 136 | "a corefile thread is executing thread2" |
| 137 | |
| 138 | # The thread2 thread should be marked as the current thread. |
| 139 | |
| 140 | gdb_test "info threads" "\\* ${horiz} thread2 .*${nl}" \ |
| 141 | "thread2 is current thread in corefile" |
| 142 | }} |