3d594c2580
- Implemented chk_memalign.
- Fixed a few bugs in leak_memalign.
- Implemented {leak,fill,check,qemu}_malloc_usable_size.
- Make malloc_usable_size update at run time.
- Add malloc_test.cpp as a small set of tests for the
malloc debug routines.
- Fix the qemu routines since it's been broken since it moved to C++.
- Add support for the %u format to the out_vformat in libc_logging.cpp.
This is used by the emulator code.
Tested using the bionic-unit-tests with setprop libc.debug.malloc
set to 1, 5, and 10.
I tested as much as possible on the emulator, but tracing doesn't appear
to be working properly.
Bug: 6143477
Change-Id: Ieba99b58c2228c88d80afd264501004a4dadd212
235 lines
6.1 KiB
C++
235 lines
6.1 KiB
C++
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <gtest/gtest.h>
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#include <stdlib.h>
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#include <malloc.h>
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TEST(malloc, malloc_std) {
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// Simple malloc test.
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void *ptr = malloc(100);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(100U, malloc_usable_size(ptr));
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free(ptr);
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}
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TEST(malloc, calloc_std) {
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// Simple calloc test.
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size_t alloc_len = 100;
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char *ptr = (char *)calloc(1, alloc_len);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(alloc_len, malloc_usable_size(ptr));
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for (size_t i = 0; i < alloc_len; i++) {
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ASSERT_EQ(0, ptr[i]);
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}
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free(ptr);
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}
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TEST(malloc, memalign_multiple) {
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// Memalign test where the alignment is any value.
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for (size_t i = 0; i <= 12; i++) {
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for (size_t alignment = 1 << i; alignment < (1U << (i+1)); alignment++) {
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char *ptr = (char*)memalign(alignment, 100);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(100U, malloc_usable_size(ptr));
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ASSERT_EQ(0, (intptr_t)ptr % (1 << i));
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free(ptr);
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}
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}
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}
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TEST(malloc, memalign_realloc) {
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// Memalign and then realloc the pointer a couple of times.
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for (size_t alignment = 1; alignment <= 4096; alignment <<= 1) {
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char *ptr = (char*)memalign(alignment, 100);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(100U, malloc_usable_size(ptr));
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ASSERT_EQ(0U, (intptr_t)ptr % alignment);
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memset(ptr, 0x23, 100);
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ptr = (char*)realloc(ptr, 200);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(200U, malloc_usable_size(ptr));
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ASSERT_TRUE(ptr != NULL);
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for (size_t i = 0; i < 100; i++) {
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ASSERT_EQ(0x23, ptr[i]);
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}
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memset(ptr, 0x45, 200);
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ptr = (char*)realloc(ptr, 300);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(300U, malloc_usable_size(ptr));
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for (size_t i = 0; i < 200; i++) {
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ASSERT_EQ(0x45, ptr[i]);
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}
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memset(ptr, 0x67, 300);
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ptr = (char*)realloc(ptr, 250);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(250U, malloc_usable_size(ptr));
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for (size_t i = 0; i < 250; i++) {
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ASSERT_EQ(0x67, ptr[i]);
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}
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free(ptr);
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}
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}
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TEST(malloc, malloc_realloc_larger) {
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// Realloc to a larger size, malloc is used for the original allocation.
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char *ptr = (char *)malloc(100);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(100U, malloc_usable_size(ptr));
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memset(ptr, 67, 100);
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ptr = (char *)realloc(ptr, 200);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(200U, malloc_usable_size(ptr));
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for (size_t i = 0; i < 100; i++) {
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ASSERT_EQ(67, ptr[i]);
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}
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free(ptr);
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}
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TEST(malloc, malloc_realloc_smaller) {
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// Realloc to a smaller size, malloc is used for the original allocation.
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char *ptr = (char *)malloc(200);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(200U, malloc_usable_size(ptr));
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memset(ptr, 67, 200);
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ptr = (char *)realloc(ptr, 100);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(100U, malloc_usable_size(ptr));
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for (size_t i = 0; i < 100; i++) {
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ASSERT_EQ(67, ptr[i]);
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}
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free(ptr);
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}
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TEST(malloc, malloc_multiple_realloc) {
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// Multiple reallocs, malloc is used for the original allocation.
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char *ptr = (char *)malloc(200);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(200U, malloc_usable_size(ptr));
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memset(ptr, 0x23, 200);
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ptr = (char *)realloc(ptr, 100);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(100U, malloc_usable_size(ptr));
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for (size_t i = 0; i < 100; i++) {
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ASSERT_EQ(0x23, ptr[i]);
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}
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ptr = (char*)realloc(ptr, 50);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(50U, malloc_usable_size(ptr));
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for (size_t i = 0; i < 50; i++) {
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ASSERT_EQ(0x23, ptr[i]);
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}
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ptr = (char*)realloc(ptr, 150);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(150U, malloc_usable_size(ptr));
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for (size_t i = 0; i < 50; i++) {
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ASSERT_EQ(0x23, ptr[i]);
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}
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memset(ptr, 0x23, 150);
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ptr = (char*)realloc(ptr, 425);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(425U, malloc_usable_size(ptr));
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for (size_t i = 0; i < 150; i++) {
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ASSERT_EQ(0x23, ptr[i]);
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}
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free(ptr);
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}
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TEST(malloc, calloc_realloc_larger) {
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// Realloc to a larger size, calloc is used for the original allocation.
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char *ptr = (char *)calloc(1, 100);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(100U, malloc_usable_size(ptr));
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ptr = (char *)realloc(ptr, 200);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(200U, malloc_usable_size(ptr));
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for (size_t i = 0; i < 100; i++) {
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ASSERT_EQ(0, ptr[i]);
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}
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free(ptr);
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}
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TEST(malloc, calloc_realloc_smaller) {
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// Realloc to a smaller size, calloc is used for the original allocation.
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char *ptr = (char *)calloc(1, 200);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(200U, malloc_usable_size(ptr));
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ptr = (char *)realloc(ptr, 100);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(100U, malloc_usable_size(ptr));
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for (size_t i = 0; i < 100; i++) {
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ASSERT_EQ(0, ptr[i]);
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}
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free(ptr);
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}
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TEST(malloc, calloc_multiple_realloc) {
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// Multiple reallocs, calloc is used for the original allocation.
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char *ptr = (char *)calloc(1, 200);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(200U, malloc_usable_size(ptr));
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ptr = (char *)realloc(ptr, 100);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(100U, malloc_usable_size(ptr));
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for (size_t i = 0; i < 100; i++) {
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ASSERT_EQ(0, ptr[i]);
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}
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ptr = (char*)realloc(ptr, 50);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(50U, malloc_usable_size(ptr));
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for (size_t i = 0; i < 50; i++) {
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ASSERT_EQ(0, ptr[i]);
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}
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ptr = (char*)realloc(ptr, 150);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(150U, malloc_usable_size(ptr));
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for (size_t i = 0; i < 50; i++) {
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ASSERT_EQ(0, ptr[i]);
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}
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memset(ptr, 0, 150);
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ptr = (char*)realloc(ptr, 425);
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ASSERT_TRUE(ptr != NULL);
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ASSERT_LE(425U, malloc_usable_size(ptr));
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for (size_t i = 0; i < 150; i++) {
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ASSERT_EQ(0, ptr[i]);
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}
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free(ptr);
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}
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