74 lines
1.7 KiB
C++
74 lines
1.7 KiB
C++
/*
|
|
* \brief Tokenizer test
|
|
* \author Norman Feske
|
|
* \date 2020-05-08
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2020 Genode Labs GmbH
|
|
*
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
* under the terms of the GNU Affero General Public License version 3.
|
|
*/
|
|
|
|
#include <util/string.h>
|
|
#include <base/log.h>
|
|
#include <base/component.h>
|
|
#include <base/attached_dataspace.h>
|
|
#include <base/attached_ram_dataspace.h>
|
|
#include <rm_session/connection.h>
|
|
#include <region_map/client.h>
|
|
|
|
using namespace Genode;
|
|
|
|
|
|
/**
|
|
* Regression test for issue #3756
|
|
*/
|
|
static void test_out_of_bounds_access(Env &env)
|
|
{
|
|
enum { PAGE_SIZE = 4096U,
|
|
SUB_RM_SIZE = PAGE_SIZE*2,
|
|
BUF_SIZE = PAGE_SIZE };
|
|
|
|
Rm_connection rm(env);
|
|
Region_map_client sub_rm(rm.create(SUB_RM_SIZE));
|
|
|
|
/* allocate physical page of memory as buffer */
|
|
Attached_ram_dataspace buf_ds(env.ram(), env.rm(), BUF_SIZE);
|
|
|
|
/* attach buffer at start of managed dataspace, leave 2nd page as guard */
|
|
sub_rm.attach_at(buf_ds.cap(), 0);
|
|
|
|
/* locally attach managed dataspace */
|
|
char * const buf_ptr = env.rm().attach(sub_rm.dataspace());
|
|
|
|
auto tokenize_two_tokens_at_end_of_buffer = [&] (char const * const input)
|
|
{
|
|
log("tokenize: '", input, "'");
|
|
|
|
size_t const input_len = strlen(input);
|
|
char * const token_ptr = buf_ptr + BUF_SIZE - input_len;
|
|
memcpy(token_ptr, input, input_len);
|
|
|
|
typedef ::Genode::Token<Scanner_policy_identifier_with_underline> Token;
|
|
|
|
Token t(token_ptr, input_len);
|
|
|
|
t = t.next();
|
|
};
|
|
|
|
tokenize_two_tokens_at_end_of_buffer("x ");
|
|
tokenize_two_tokens_at_end_of_buffer("x\"");
|
|
}
|
|
|
|
|
|
void Component::construct(Env &env)
|
|
{
|
|
log("--- token test ---");
|
|
|
|
test_out_of_bounds_access(env);
|
|
|
|
log("--- finished token test ---");
|
|
}
|