diff options
| author | Vladimir Chtchetkine <vchtchetkine@google.com> | 2009-11-17 14:13:38 -0800 |
|---|---|---|
| committer | Vladimir Chtchetkine <vchtchetkine@google.com> | 2009-11-18 10:36:25 -0800 |
| commit | b74ceb25aae555570df64fa4d4076272733a9a20 (patch) | |
| tree | 3bf49e716722b67f4b0f0bcb391156bf29fa6ad0 /libc/bionic/malloc_debug_qemu.c | |
| parent | e8870ffc965d553a885f63b26e724da279728b72 (diff) | |
| download | bionic-b74ceb25aae555570df64fa4d4076272733a9a20.zip bionic-b74ceb25aae555570df64fa4d4076272733a9a20.tar.gz bionic-b74ceb25aae555570df64fa4d4076272733a9a20.tar.bz2 | |
Split libc_debug.so into two .so modules loaded on demand from libc.so
This change is intended to eliminate need to replace libc.so with libc_debug.so in order to enablememory allocation debugging.
This is also the first step towards implementing extended memoryallocation debugging using emulator's capabilities in monitoring memory access.
Diffstat (limited to 'libc/bionic/malloc_debug_qemu.c')
| -rw-r--r-- | libc/bionic/malloc_debug_qemu.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/libc/bionic/malloc_debug_qemu.c b/libc/bionic/malloc_debug_qemu.c new file mode 100644 index 0000000..b63ddb4 --- /dev/null +++ b/libc/bionic/malloc_debug_qemu.c @@ -0,0 +1,81 @@ +/* + * Copyright (C) 2009 The Android Open Source Project + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * Contains implementation of memeory allocation routines instrumented for + * usage in the emulator to detect memory allocation violations, such as + * memory leaks, buffer overruns, etc. + */ + +#include <stdlib.h> +#include <pthread.h> +#include <unistd.h> +#include "dlmalloc.h" +#include "logd.h" + +// This file should be included into the build only when +// MALLOC_QEMU_INSTRUMENT macro is defined. +#ifndef MALLOC_QEMU_INSTRUMENT +#error MALLOC_QEMU_INSTRUMENT is not defined. +#endif // MALLOC_QEMU_INSTRUMENT + +// ============================================================================= +// log functions +// ============================================================================= + +#define debug_log(format, ...) \ + __libc_android_log_print(ANDROID_LOG_DEBUG, "malloc_qemu", (format), ##__VA_ARGS__ ) +#define error_log(format, ...) \ + __libc_android_log_print(ANDROID_LOG_ERROR, "malloc_qemu", (format), ##__VA_ARGS__ ) +#define info_log(format, ...) \ + __libc_android_log_print(ANDROID_LOG_INFO, "malloc_qemu", (format), ##__VA_ARGS__ ) + +void* qemu_instrumented_malloc(size_t bytes) +{ + return dlmalloc(bytes); +} + +void qemu_instrumented_free(void* mem) +{ + dlfree(mem); +} + +void* qemu_instrumented_calloc(size_t n_elements, size_t elem_size) +{ + return dlcalloc(n_elements, elem_size); +} + +void* qemu_instrumented_realloc(void* mem, size_t bytes) +{ + return dlrealloc(mem, bytes); +} + +void* qemu_instrumented_memalign(size_t alignment, size_t bytes) +{ + return dlmemalign(alignment, bytes); +} |