diff options
Diffstat (limited to 'gdb/testsuite/gdb.python')
| -rw-r--r-- | gdb/testsuite/gdb.python/py-thrhandle.c | 94 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.python/py-thrhandle.exp | 102 |
2 files changed, 196 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.python/py-thrhandle.c b/gdb/testsuite/gdb.python/py-thrhandle.c new file mode 100644 index 0000000..0dd974f --- /dev/null +++ b/gdb/testsuite/gdb.python/py-thrhandle.c @@ -0,0 +1,94 @@ +/* This testcase is part of GDB, the GNU debugger. + + Copyright 2017 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/>. */ + +#include <pthread.h> +#include <unistd.h> +#include <memory.h> + +#define NTHR 3 +#define NBOGUSTHR 2 + +int thr_data[NTHR]; + +/* Thread handles for each thread plus some "bogus" threads. */ +pthread_t thrs[NTHR + NBOGUSTHR]; + +/* The thread children will meet at this barrier. */ +pthread_barrier_t c_barrier; + +/* The main thread and child thread will meet at this barrier. */ +pthread_barrier_t mc_barrier; + +void +do_something (int n) +{ +} + +void * +do_work (void *data) +{ + int num = * (int *) data; + + /* As the child threads are created, they'll meet the main thread + at this barrier. We do this to ensure that threads end up in + GDB's thread list in the order in which they were created. Having + this ordering makes it easier to write the test. */ + pthread_barrier_wait (&mc_barrier); + + /* All of the child threads will meet at this barrier before proceeding. + This ensures that all threads will be active (not exited) and in + roughly the same state when the first one hits the breakpoint in + do_something(). */ + pthread_barrier_wait (&c_barrier); + + do_something (num); + + pthread_exit (NULL); +} + +void +after_mc_barrier (void) +{ +} + +int +main (int argc, char **argv) +{ + int i; + + pthread_barrier_init (&c_barrier, NULL, NTHR - 1); + pthread_barrier_init (&mc_barrier, NULL, 2); + + thrs[0] = pthread_self (); + thr_data[0] = 1; + + /* Create two bogus thread handles. */ + memset (&thrs[NTHR], 0, sizeof (pthread_t)); + memset (&thrs[NTHR + 1], 0xaa, sizeof (pthread_t)); + + for (i = 1; i < NTHR; i++) + { + thr_data[i] = i + 1; + + pthread_create (&thrs[i], NULL, do_work, &thr_data[i]); + pthread_barrier_wait (&mc_barrier); + after_mc_barrier (); + } + + for (i = 1; i < NTHR; i++) + pthread_join (thrs[i], NULL); +} diff --git a/gdb/testsuite/gdb.python/py-thrhandle.exp b/gdb/testsuite/gdb.python/py-thrhandle.exp new file mode 100644 index 0000000..66b0472 --- /dev/null +++ b/gdb/testsuite/gdb.python/py-thrhandle.exp @@ -0,0 +1,102 @@ +# Copyright (C) 2017 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/>. + +# Please email any bugs, comments, and/or additions to this file to: +# bug-gdb@gnu.org + +# This file verifies that gdb.Inferior.thread_from_thread_handle works +# as expected. + +standard_testfile + + +if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable debug] != "" } { + return -1 +} + +clean_restart ${binfile} +runto_main + +gdb_test "break after_mc_barrier" \ + "Breakpoint 2 at .*: file .*${srcfile}, line .*" \ + "breakpoint on after_mc_barrier" + +gdb_test "break do_something" \ + "Breakpoint 3 at .*: file .*${srcfile}, line .*" \ + "breakpoint on do_something" + +gdb_test "continue" \ + "Breakpoint 2, after_mc_barrier .*" \ + "run to after_mc_barrier" + +gdb_test_no_output "del 2" "delete after_mc_barrier breakpoint" + +gdb_test "continue" \ + "Breakpoint 3, do_something .*" \ + "run to do_something" + +# The test case has been constructed so that the current thread, +# indicated by '*' in the "info threads" output, should be stopped in +# do_something() with a value of n which is the same as the number +# reported in the "Id" column. If it's not, then something went wrong +# with the start up sequence which should cause the main thread to be +# thread 1, the first child thread to be thread 2, and the second +# child thread to be thread 3. +# +# Note that \1 in the RE below is a backreference to the thread id +# reported in the "Id" column. + +gdb_test "info threads" \ + {.*[\r\n]+\* +([0-9]+) +Thread[^\r\n]* do_something \(n=\1\) at.*} + +# Check for expected results when passing a valid thread handle to +# thread_from_thread_handle(). + +gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('thrs\[0\]')).num)" \ + "1" "print thread id for thrs\[0\]" + +gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('thrs\[1\]')).num)" \ + "2" "print thread id for thrs\[1\]" + +gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('thrs\[2\]')).num)" \ + "3" "print thread id for thrs\[2\]" + +# Objects which are of the correct size, but which are bogus thread +# handles should return None. For the first test (using thrs[3]), we +# use 0. For the second (thrs[4]), we use an unlikely bit pattern. + +gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('thrs\[3\]')))" \ + "None" "print thread for bogus handle thrs\[3\]" + +gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('thrs\[4\]')))" \ + "None" "print thread for bogus handle thrs\[4\]" + +# We should see an exception when passing an object of the wrong type. + +gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.lookup_symbol('main')))" \ + ".*TypeError: Argument 'handle_obj' must be a thread handle object.*" \ + "TypeError when passing a symbol object to thread_from_thread_handle" + +# We should see an exception when passing too large of an object. + +gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('thrs')))" \ + ".*Thread handle size mismatch.*" \ + "Pass overly large object to thread_from_thread_handle" + +# We should see an exception when passing too small of an object. + +gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('\"S\"')))" \ + ".*Thread handle size mismatch.*" \ + "Pass too small of an object to thread_from_thread_handle" |