| # Copyright 2002-2018 Free Software Foundation, Inc. |
| |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 3 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| |
| # This file was written by Michael Snyder (msnyder@redhat.com) |
| # This is a test for the gdb command "generate-core-file". |
| |
| # Single-threaded test case |
| standard_testfile pthreads.c |
| set objfile $binfile.o |
| set corefile $binfile.test |
| set core0file ${binfile}0.test |
| |
| if [istarget "*-*-linux"] then { |
| set target_cflags "-D_MIT_POSIX_THREADS" |
| } else { |
| set target_cflags "" |
| } |
| |
| # Attempt to prevent -Wl,-z,relro which happens by default at least on |
| # Kubuntu-10.10. Due to PR corefiles/11804 will then GDB be unable to find |
| # libpthread, therefore libthread_db will not fail as expected |
| # on the test `zeroed-threads cannot be listed'. |
| |
| set opts [list debug] |
| if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${objfile}" object $opts] != "" |
| || ([gdb_compile_pthreads "${objfile}" "${binfile}" executable [concat $opts {additional_flags=-Wl,-z,norelro}] ] != "" |
| && [gdb_compile_pthreads "${objfile}" "${binfile}" executable $opts] != "") } { |
| return -1 |
| } |
| |
| # Now we can proceed with the real testing. |
| |
| # Start with a fresh gdb. |
| |
| clean_restart ${testfile} |
| |
| # regexp for "horizontal" text (i.e. doesn't include newline or |
| # carriage return) |
| set horiz "\[^\n\r\]*" |
| |
| # regexp for newline |
| set nl "\[\r\n\]+" |
| |
| set timeout 30 |
| |
| if { ! [ runto_main ] } then { |
| untested "could not run to main" |
| return -1 |
| } |
| |
| gdb_test_multiple "info threads" "threads are supported" { |
| -re ".* main .*$gdb_prompt $" { |
| # OK, threads are supported. |
| } |
| -re "${nl}$gdb_prompt $" { |
| unsupported "gdb does not support threads on this target" |
| return -1 |
| } |
| } |
| |
| # Make sure thread 1 is running |
| delete_breakpoints |
| gdb_breakpoint "thread1" |
| gdb_test "continue" "Continuing.*Breakpoint.* thread1 .*" "thread 1 is running" |
| |
| # Make sure thread 2 is running |
| delete_breakpoints |
| gdb_breakpoint "thread2" |
| gdb_test "continue" "Continuing.*Breakpoint.* thread2 .*" "thread 2 is running" |
| |
| # Drop corefile |
| set core_supported [gdb_gcore_cmd "$corefile" "save a corefile"] |
| |
| if {!$core_supported} { |
| return -1 |
| } |
| |
| |
| # Test the uninitialized thread list. |
| # Provide the case of glibc td_thr_get_info handling of: |
| # /* Special case for the main thread before initialization. */ |
| |
| foreach symbol {__stack_user stack_used} { |
| set test "clear ${symbol}.next" |
| gdb_test_multiple "p *(void **) &${symbol} = 0" $test { |
| -re " = \\(void \\*\\) 0x0\r\n$gdb_prompt $" { |
| pass $test |
| } |
| -re "No symbol \"${symbol}\" in current context\\.\r\n$gdb_prompt $" { |
| xfail $test |
| # Do not do the verification. |
| set core0file "" |
| } |
| } |
| } |
| |
| if {"$core0file" != ""} { |
| gdb_test "gcore $core0file" "Saved corefile .*" "save a zeroed-threads corefile" |
| } |
| |
| |
| # Now restart gdb and load the corefile. |
| clean_restart ${testfile} |
| |
| foreach name { corefile core0file } { with_test_prefix $name { |
| set core_loaded [gdb_core_cmd [subst $$name] "re-load generated corefile"] |
| if { $core_loaded == -1 } { |
| # No use proceeding from here. |
| continue |
| } |
| |
| # FIXME: now what can we test about the thread state? |
| # We do not know for certain that there should be at least |
| # three threads, because who knows what kind of many-to-one |
| # mapping various OS's may do? Let's assume that there must |
| # be at least two threads: |
| |
| gdb_test "info threads" "\\* 1 ${horiz}${nl} 2 ${horiz}.*" \ |
| "corefile contains at least two threads" |
| |
| # One thread in the corefile should be in the "thread2" function. |
| |
| gdb_test "info threads" ".* thread2 .*" \ |
| "a corefile thread is executing thread2" |
| |
| # The thread2 thread should be marked as the current thread. |
| |
| gdb_test "info threads" "\\* ${horiz} thread2 .*${nl}" \ |
| "thread2 is current thread in corefile" |
| }} |