139 lines
4.2 KiB
C
139 lines
4.2 KiB
C
/*
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* Copyright (c) 2006-2023, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2023-08-22 Shell test case for aspace_map with varea_expand
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*/
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#include "common.h"
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#include "lwp_user_mm.h"
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#include "mm_fault.h"
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#include <mm_aspace.h>
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#include <rtthread.h>
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static long fd = -1;
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static long pgoffset = 0;
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static size_t flags = MAP_FIXED | MAP_ANONYMOUS;
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static size_t prot = PROT_READ | PROT_WRITE;
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static char *ex_vaddr = (char *)0x100000000;
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static size_t ex_size = 0x5000;
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static char *private0 = (char *)0x100000000;
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static char *private1 = (char *)0x100000000 + 0x1000;
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static char *private2 = (char *)0x100000000 + 0x2000;
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static char *private3 = (char *)0x100000000 + 0x3000;
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static char *private4 = (char *)0x100000000 + 0x4000;
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/**
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* todo: suppoprt prefetch pages, so more than 1 page can install to private at a time
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* static size_t priv_size = 0x1000;
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*/
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static size_t former_vsz;
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static size_t former_vcount;
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static struct rt_lwp *lwp;
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static int _count_vsz(rt_varea_t varea, void *arg)
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{
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rt_base_t *pvsz = arg;
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*pvsz += 1;
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return 0;
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}
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static rt_base_t count_vcount(rt_aspace_t aspace)
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{
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rt_base_t vcount = 0;
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rt_aspace_traversal(aspace, _count_vsz, &vcount);
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return vcount;
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}
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static void test_mmap_fix_private(void)
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{
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char *next_va;
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struct rt_aspace_fault_msg msg;
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msg.fault_op = MM_FAULT_OP_WRITE;
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msg.fault_type = MM_FAULT_TYPE_ACCESS_FAULT;
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/* map new pages at ex_vaddr to anonymous */
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next_va = ex_vaddr;
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former_vsz = rt_aspace_count_vsz(lwp->aspace);
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former_vcount = count_vcount(lwp->aspace);
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next_va = lwp_mmap2(lwp, next_va, ex_size, prot, flags, fd, pgoffset);
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uassert_true(next_va == ex_vaddr);
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utest_int_equal(former_vsz + ex_size, rt_aspace_count_vsz(lwp->aspace));
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utest_int_equal(former_vcount + 1, count_vcount(lwp->aspace));
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former_vsz += ex_size;
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former_vcount += 1;
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/* fix private in the middle */
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msg.fault_vaddr = private2;
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utest_int_equal(MM_FAULT_FIXABLE_TRUE, rt_aspace_fault_try_fix(lwp->aspace, &msg));
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utest_int_equal(former_vsz, rt_aspace_count_vsz(lwp->aspace));
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utest_int_equal(former_vcount + 2, count_vcount(lwp->aspace));
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former_vcount += 2;
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/* fix private from left most */
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msg.fault_vaddr = private0;
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utest_int_equal(MM_FAULT_FIXABLE_TRUE, rt_aspace_fault_try_fix(lwp->aspace, &msg));
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utest_int_equal(former_vsz, rt_aspace_count_vsz(lwp->aspace));
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utest_int_equal(former_vcount + 1, count_vcount(lwp->aspace));
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former_vcount += 1;
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/* fix private from right most */
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msg.fault_vaddr = private4;
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utest_int_equal(MM_FAULT_FIXABLE_TRUE, rt_aspace_fault_try_fix(lwp->aspace, &msg));
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utest_int_equal(former_vsz, rt_aspace_count_vsz(lwp->aspace));
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utest_int_equal(former_vcount + 1, count_vcount(lwp->aspace));
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former_vcount += 1;
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/* fix private from left-middle */
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msg.fault_vaddr = private1;
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utest_int_equal(MM_FAULT_FIXABLE_TRUE, rt_aspace_fault_try_fix(lwp->aspace, &msg));
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utest_int_equal(former_vsz, rt_aspace_count_vsz(lwp->aspace));
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utest_int_equal(former_vcount - 1, count_vcount(lwp->aspace));
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former_vcount -= 1;
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/* fix private from right-middle */
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msg.fault_vaddr = private3;
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utest_int_equal(MM_FAULT_FIXABLE_TRUE, rt_aspace_fault_try_fix(lwp->aspace, &msg));
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utest_int_equal(former_vsz, rt_aspace_count_vsz(lwp->aspace));
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utest_int_equal(former_vcount - 1, count_vcount(lwp->aspace));
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former_vcount -= 1;
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/* clear mapping */
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utest_int_equal(RT_EOK, rt_aspace_unmap_range(lwp->aspace, ex_vaddr, ex_size));
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rt_free(lwp->aspace->private_object);
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lwp->aspace->private_object = RT_NULL;
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}
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static void testcase_main(void)
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{
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CONSIST_HEAP(test_mmap_fix_private());
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}
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static rt_err_t utest_tc_init(void)
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{
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lwp = lwp_create(0);
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if (lwp)
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lwp_user_space_init(lwp, 1);
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else
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return -RT_ENOMEM;
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return RT_EOK;
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}
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static rt_err_t utest_tc_cleanup(void)
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{
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lwp_ref_dec(lwp);
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return RT_EOK;
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}
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static void testcase(void)
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{
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UTEST_UNIT_RUN(testcase_main);
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}
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UTEST_TC_EXPORT(testcase, "testcases.lwp.mman.mmap_anon.fix_private", utest_tc_init, utest_tc_cleanup, 10);
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