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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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84f5d36f48
Moving pr_* debug macros to have it with in same object as debug variables, becase we will change them to use verbose variable in next patch. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1405374411-29012-3-git-send-email-jolsa@kernel.org [ Add missing debug.h include in python scripting glue and in the libdw unwind lib ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
92 lines
2.3 KiB
C
92 lines
2.3 KiB
C
#include "tests.h"
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#include "machine.h"
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#include "thread.h"
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#include "map.h"
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#include "debug.h"
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int test__thread_mg_share(void)
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{
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struct machines machines;
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struct machine *machine;
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/* thread group */
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struct thread *leader;
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struct thread *t1, *t2, *t3;
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struct map_groups *mg;
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/* other process */
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struct thread *other, *other_leader;
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struct map_groups *other_mg;
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/*
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* This test create 2 processes abstractions (struct thread)
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* with several threads and checks they properly share and
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* maintain map groups info (struct map_groups).
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*
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* thread group (pid: 0, tids: 0, 1, 2, 3)
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* other group (pid: 4, tids: 4, 5)
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*/
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machines__init(&machines);
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machine = &machines.host;
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/* create process with 4 threads */
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leader = machine__findnew_thread(machine, 0, 0);
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t1 = machine__findnew_thread(machine, 0, 1);
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t2 = machine__findnew_thread(machine, 0, 2);
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t3 = machine__findnew_thread(machine, 0, 3);
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/* and create 1 separated process, without thread leader */
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other = machine__findnew_thread(machine, 4, 5);
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TEST_ASSERT_VAL("failed to create threads",
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leader && t1 && t2 && t3 && other);
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mg = leader->mg;
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TEST_ASSERT_VAL("wrong refcnt", mg->refcnt == 4);
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/* test the map groups pointer is shared */
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TEST_ASSERT_VAL("map groups don't match", mg == t1->mg);
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TEST_ASSERT_VAL("map groups don't match", mg == t2->mg);
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TEST_ASSERT_VAL("map groups don't match", mg == t3->mg);
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/*
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* Verify the other leader was created by previous call.
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* It should have shared map groups with no change in
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* refcnt.
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*/
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other_leader = machine__find_thread(machine, 4, 4);
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TEST_ASSERT_VAL("failed to find other leader", other_leader);
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other_mg = other->mg;
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TEST_ASSERT_VAL("wrong refcnt", other_mg->refcnt == 2);
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TEST_ASSERT_VAL("map groups don't match", other_mg == other_leader->mg);
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/* release thread group */
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thread__delete(leader);
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TEST_ASSERT_VAL("wrong refcnt", mg->refcnt == 3);
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thread__delete(t1);
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TEST_ASSERT_VAL("wrong refcnt", mg->refcnt == 2);
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thread__delete(t2);
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TEST_ASSERT_VAL("wrong refcnt", mg->refcnt == 1);
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thread__delete(t3);
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/* release other group */
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thread__delete(other_leader);
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TEST_ASSERT_VAL("wrong refcnt", other_mg->refcnt == 1);
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thread__delete(other);
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/*
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* Cannot call machine__delete_threads(machine) now,
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* because we've already released all the threads.
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*/
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machines__exit(&machines);
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return 0;
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}
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