48ff13ef37
As described in bugzilla, ASan reports accesses to all memory segment as
invalid, since those parts have not been allocated with rte_malloc.
Move __rte_no_asan to rte_common.h and disable ASan on a part of the test.
Bugzilla ID: 880
Fixes: 6cc51b1293 ("mem: instrument allocator for ASan")
Cc: stable@dpdk.org
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
114 lines
2.3 KiB
C
114 lines
2.3 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2010-2014 Intel Corporation
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <rte_eal.h>
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#include <rte_errno.h>
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#include <rte_memory.h>
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#include <rte_common.h>
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#include <rte_memzone.h>
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#include "test.h"
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/*
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* Memory
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* ======
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*
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* - Dump the mapped memory. The python-expect script checks that at
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* least one line is dumped.
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*
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* - Check that memory size is different than 0.
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*
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* - Try to read all memory; it should not segfault.
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*/
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/*
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* ASan complains about accessing unallocated memory.
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* See: https://bugs.dpdk.org/show_bug.cgi?id=880
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*/
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__rte_no_asan
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static int
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check_mem(const struct rte_memseg_list *msl __rte_unused,
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const struct rte_memseg *ms, void *arg __rte_unused)
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{
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volatile uint8_t *mem = (volatile uint8_t *) ms->addr;
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size_t i, max = ms->len;
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for (i = 0; i < max; i++, mem++)
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*mem;
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return 0;
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}
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static int
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check_seg_fds(const struct rte_memseg_list *msl, const struct rte_memseg *ms,
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void *arg __rte_unused)
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{
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size_t offset;
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int ret;
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/* skip external segments */
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if (msl->external)
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return 0;
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/* try segment fd first. we're in a callback, so thread-unsafe */
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ret = rte_memseg_get_fd_thread_unsafe(ms);
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if (ret < 0) {
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/* ENOTSUP means segment is valid, but there is not support for
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* segment fd API (e.g. on FreeBSD).
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*/
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if (rte_errno == ENOTSUP)
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return 1;
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/* all other errors are treated as failures */
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return -1;
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}
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/* we're able to get memseg fd - try getting its offset */
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ret = rte_memseg_get_fd_offset_thread_unsafe(ms, &offset);
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if (ret < 0) {
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if (rte_errno == ENOTSUP)
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return 1;
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return -1;
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}
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return 0;
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}
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static int
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test_memory(void)
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{
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uint64_t s;
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int ret;
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/*
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* dump the mapped memory: the python-expect script checks
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* that at least one line is dumped
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*/
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printf("Dump memory layout\n");
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rte_dump_physmem_layout(stdout);
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/* check that memory size is != 0 */
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s = rte_eal_get_physmem_size();
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if (s == 0) {
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printf("No memory detected\n");
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return -1;
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}
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/* try to read memory (should not segfault) */
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rte_memseg_walk(check_mem, NULL);
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/* check segment fd support */
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ret = rte_memseg_walk(check_seg_fds, NULL);
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if (ret == 1) {
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printf("Segment fd API is unsupported\n");
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} else if (ret == -1) {
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printf("Error getting segment fd's\n");
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return -1;
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}
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return 0;
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}
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REGISTER_TEST_COMMAND(memory_autotest, test_memory);
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