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Unit tests for gdbserver memory tagging remote packets

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Add some unit testing to exercise the functions handling the qMemTags and
QMemTags packets as well as feature support.

gdbserver/ChangeLog:

2021-03-24  Luis Machado  <luis.machado@linaro.org>

	* server.cc (test_memory_tagging_functions): New function.
	(captured_main): Register test_memory_tagging_functions.
This commit is contained in:
Luis Machado 2020-06-15 15:40:47 -03:00
parent 546b77fe78
commit c2cfa6542c
2 changed files with 83 additions and 0 deletions
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5
gdbserver/ChangeLog
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@ -1,3 +1,8 @@
2021-03-24 Luis Machado <luis.machado@linaro.org>
* server.cc (test_memory_tagging_functions): New function.
(captured_main): Register test_memory_tagging_functions.
2021-03-24 Luis Machado <luis.machado@linaro.org>
* remote-utils.cc (decode_m_packet_params): Renamed from ...

78
gdbserver/server.cc
View File

@ -3653,6 +3653,81 @@ detach_or_kill_for_exit_cleanup ()
}
}
#if GDB_SELF_TEST
namespace selftests {
static void
test_memory_tagging_functions (void)
{
/* Setup testing. */
gdb::char_vector packet;
gdb::byte_vector tags, bv;
std::string expected;
packet.resize (32000);
CORE_ADDR addr;
size_t len;
int type;
/* Test parsing a qMemTags request. */
/* Valid request, addr, len and type updated. */
addr = 0xff;
len = 255;
type = 255;
strcpy (packet.data (), "qMemTags:0,0:0");
parse_fetch_memtags_request (packet.data (), &addr, &len, &type);
SELF_CHECK (addr == 0 && len == 0 && type == 0);
/* Valid request, addr, len and type updated. */
addr = 0;
len = 0;
type = 0;
strcpy (packet.data (), "qMemTags:deadbeef,ff:5");
parse_fetch_memtags_request (packet.data (), &addr, &len, &type);
SELF_CHECK (addr == 0xdeadbeef && len == 255 && type == 5);
/* Test creating a qMemTags reply. */
/* Non-empty tag data. */
bv.resize (0);
for (int i = 0; i < 5; i++)
bv.push_back (i);
expected = "m0001020304";
SELF_CHECK (create_fetch_memtags_reply (packet.data (), bv) == true);
SELF_CHECK (strcmp (packet.data (), expected.c_str ()) == 0);
/* Test parsing a QMemTags request. */
/* Valid request and empty tag data: addr, len, type and tags updated. */
addr = 0xff;
len = 255;
type = 255;
tags.resize (5);
strcpy (packet.data (), "QMemTags:0,0:0:");
SELF_CHECK (parse_store_memtags_request (packet.data (),
&addr, &len, tags, &type) == true);
SELF_CHECK (addr == 0 && len == 0 && type == 0 && tags.size () == 0);
/* Valid request and non-empty tag data: addr, len, type
and tags updated. */
addr = 0;
len = 0;
type = 0;
tags.resize (0);
strcpy (packet.data (),
"QMemTags:deadbeef,ff:5:0001020304");
SELF_CHECK (parse_store_memtags_request (packet.data (), &addr, &len, tags,
&type) == true);
SELF_CHECK (addr == 0xdeadbeef && len == 255 && type == 5
&& tags.size () == 5);
}
} // namespace selftests
#endif /* GDB_SELF_TEST */
/* Main function. This is called by the real "main" function,
wrapped in a TRY_CATCH that handles any uncaught exceptions. */
@ -3670,6 +3745,9 @@ captured_main (int argc, char *argv[])
bool selftest = false;
#if GDB_SELF_TEST
std::vector<const char *> selftest_filters;
selftests::register_test ("remote_memory_tagging",
selftests::test_memory_tagging_functions);
#endif
current_directory = getcwd (NULL, 0);