Merge "Remove references to libc_scudo."
diff --git a/libc/Android.bp b/libc/Android.bp
index f4643a9..48c9dd0 100644
--- a/libc/Android.bp
+++ b/libc/Android.bp
@@ -2478,75 +2478,6 @@
},
}
-// This is a temporary library that will use scudo as the native memory
-// allocator. To use it, add it as the first shared library.
-cc_defaults {
- name: "libc_scudo_wrapper_defaults",
- srcs: [
- "bionic/gwp_asan_wrappers.cpp",
- "bionic/heap_tagging.cpp",
- "bionic/malloc_common.cpp",
- "bionic/malloc_common_dynamic.cpp",
- "bionic/malloc_heapprofd.cpp",
- "bionic/malloc_limit.cpp",
- "bionic/scudo_wrapper.cpp",
- "bionic/__set_errno.cpp",
- ],
- cflags: [
- "-DUSE_SCUDO",
- "-fno-emulated-tls", // Required for GWP-ASan.
- ],
- shared_libs: ["libscudo_wrapper"],
-
- header_libs: [
- "libc_headers",
- "gwp_asan_headers",
- ],
-
- static_libs: [
- "libasync_safe",
- "gwp_asan",
- ],
-
- arch: {
- arm: {
- srcs: [":syscalls-arm.S"],
- },
- arm64: {
- srcs: [":syscalls-arm64.S"],
- },
- x86: {
- srcs: [
- "arch-x86/bionic/__libc_init_sysinfo.cpp",
- ":syscalls-x86.S",
- ],
- },
- x86_64: {
- srcs: [":syscalls-x86_64.S"],
- },
- },
-
- // Mark this library as global so it overrides all the allocation
- // definitions properly.
- ldflags: ["-Wl,-z,global"],
-}
-
-cc_library_shared {
- name: "libc_scudo",
- vendor_available: true,
- stl: "none",
- system_shared_libs: [],
-
- allow_undefined_symbols: true,
- // Like libc, disable native coverage for libc_scudo.
- native_coverage: false,
- apex_available: [
- "//apex_available:platform",
- "com.android.media.swcodec",
- ],
- min_sdk_version: "apex_inherit",
-}
-
subdirs = [
"bionic/scudo",
]
diff --git a/libc/bionic/scudo/Android.bp b/libc/bionic/scudo/Android.bp
deleted file mode 100644
index 9b77c06..0000000
--- a/libc/bionic/scudo/Android.bp
+++ /dev/null
@@ -1,63 +0,0 @@
-//
-// Copyright (C) 2019 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-
-cc_library_shared {
- name: "libscudo_wrapper",
- vendor_available: true,
- srcs: ["scudo.cpp"],
-
- stl: "none",
- system_shared_libs: [],
- host_supported: false,
-
- header_libs: ["libc_headers"],
- include_dirs: [
- "bionic/libc",
- "bionic/libc/bionic",
- ],
-
- whole_static_libs: ["libasync_safe"],
-
- arch: {
- arm: {
- whole_static_libs: ["libclang_rt.scudo_minimal-arm-android.static"],
- },
- arm64: {
- whole_static_libs: ["libclang_rt.scudo_minimal-aarch64-android.static"],
- },
- x86: {
- whole_static_libs: ["libclang_rt.scudo_minimal-i686-android.static"],
- },
- x86_64: {
- whole_static_libs: ["libclang_rt.scudo_minimal-x86_64-android.static"],
- },
- },
-
- // Will be referencing other libc code that won't be defined here.
- allow_undefined_symbols: true,
-
- multilib: {
- lib32: {
- version_script: "exported32.map",
- },
- lib64: {
- version_script: "exported64.map",
- },
- },
-
- // Like libc, disable native coverage for libscudo_wrapper.
- native_coverage: false,
-}
diff --git a/libc/bionic/scudo/exported32.map b/libc/bionic/scudo/exported32.map
deleted file mode 100644
index 4b6791d..0000000
--- a/libc/bionic/scudo/exported32.map
+++ /dev/null
@@ -1,16 +0,0 @@
-LIBC_SCUDO {
- global:
- scudo_aligned_alloc;
- scudo_calloc;
- scudo_free;
- scudo_mallinfo;
- scudo_malloc;
- scudo_malloc_usable_size;
- scudo_memalign;
- scudo_posix_memalign;
- scudo_pvalloc;
- scudo_realloc;
- scudo_valloc;
- local:
- *;
-};
diff --git a/libc/bionic/scudo/exported64.map b/libc/bionic/scudo/exported64.map
deleted file mode 100644
index 1346b4b..0000000
--- a/libc/bionic/scudo/exported64.map
+++ /dev/null
@@ -1,14 +0,0 @@
-LIBC_SCUDO {
- global:
- scudo_aligned_alloc;
- scudo_calloc;
- scudo_free;
- scudo_mallinfo;
- scudo_malloc;
- scudo_malloc_usable_size;
- scudo_memalign;
- scudo_posix_memalign;
- scudo_realloc;
- local:
- *;
-};
diff --git a/libc/bionic/scudo/scudo.cpp b/libc/bionic/scudo/scudo.cpp
deleted file mode 100644
index 2cd36b1..0000000
--- a/libc/bionic/scudo/scudo.cpp
+++ /dev/null
@@ -1,165 +0,0 @@
-/*
- * Copyright (C) 2019 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.
- */
-
-#include <errno.h>
-#include <malloc.h>
-#include <stdlib.h>
-#include <sys/mman.h>
-#include <sys/param.h>
-#include <sys/prctl.h>
-
-#include "platform/bionic/macros.h"
-
-#include "scudo.h"
-
-// Disable Scudo's mismatch allocation check, as it is being triggered
-// by some third party code.
-extern "C" const char *__scudo_default_options() {
- return "DeallocationTypeMismatch=false";
-}
-
-static inline bool AllocTooBig(size_t bytes) {
-#if defined(__LP64__)
- if (__predict_false(bytes > 0x10000000000ULL)) {
-#else
- if (__predict_false(bytes > 0x80000000ULL)) {
-#endif
- return true;
- }
- return false;
-}
-
-void* scudo_aligned_alloc(size_t alignment, size_t size) {
- if (alignment == 0 || !powerof2(alignment) || (size % alignment) != 0) {
- errno = EINVAL;
- return nullptr;
- }
- if (AllocTooBig(size)) {
- errno = ENOMEM;
- return nullptr;
- }
-
- return aligned_alloc(alignment, size);
-}
-
-void* scudo_calloc(size_t item_count, size_t item_size) {
- size_t total;
- if (__builtin_mul_overflow(item_count, item_size, &total) || AllocTooBig(total)) {
- errno = ENOMEM;
- return nullptr;
- }
- return calloc(item_count, item_size);
-}
-
-void scudo_free(void* ptr) {
- free(ptr);
-}
-
-extern "C" size_t __sanitizer_get_current_allocated_bytes();
-extern "C" size_t __sanitizer_get_heap_size();
-
-struct mallinfo scudo_mallinfo() {
- struct mallinfo info {};
- info.uordblks = __sanitizer_get_current_allocated_bytes();
- info.hblkhd = __sanitizer_get_heap_size();
- info.usmblks = info.hblkhd;
- return info;
-}
-
-void* scudo_malloc(size_t byte_count) {
- if (AllocTooBig(byte_count)) {
- errno = ENOMEM;
- return nullptr;
- }
- return malloc(byte_count);
-}
-
-size_t scudo_malloc_usable_size(const void* ptr) {
- return malloc_usable_size(ptr);
-}
-
-void* scudo_memalign(size_t alignment, size_t byte_count) {
- if (AllocTooBig(byte_count)) {
- errno = ENOMEM;
- return nullptr;
- }
- if (alignment != 0) {
- if (!powerof2(alignment)) {
- alignment = BIONIC_ROUND_UP_POWER_OF_2(alignment);
- }
- } else {
- alignment = 1;
- }
- return memalign(alignment, byte_count);
-}
-
-void* scudo_realloc(void* ptr, size_t byte_count) {
- if (AllocTooBig(byte_count)) {
- errno = ENOMEM;
- return nullptr;
- }
- return realloc(ptr, byte_count);
-}
-
-int scudo_posix_memalign(void** memptr, size_t alignment, size_t size) {
- if (alignment < sizeof(void*) || !powerof2(alignment)) {
- return EINVAL;
- }
- if (AllocTooBig(size)) {
- return ENOMEM;
- }
- return posix_memalign(memptr, alignment, size);
-}
-
-#if defined(HAVE_DEPRECATED_MALLOC_FUNCS)
-extern "C" void* pvalloc(size_t);
-
-void* scudo_pvalloc(size_t size) {
- if (AllocTooBig(size)) {
- errno = ENOMEM;
- return nullptr;
- }
- return pvalloc(size);
-}
-
-extern "C" void* valloc(size_t);
-
-void* scudo_valloc(size_t size) {
- if (AllocTooBig(size)) {
- errno = ENOMEM;
- return nullptr;
- }
- return valloc(size);
-}
-#endif
-
-// Do not try and name the scudo maps by overriding __sanitizer::internal_mmap.
-// There is already a function called MmapNamed that names the maps.
-// Unfortunately, there is no easy way to override MmapNamed because
-// too much of the code is not compiled into functions available in the
-// library, and the code is complicated.
diff --git a/libc/bionic/scudo_wrapper.cpp b/libc/bionic/scudo_wrapper.cpp
deleted file mode 100644
index 1624327..0000000
--- a/libc/bionic/scudo_wrapper.cpp
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * Copyright (C) 2019 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.
- */
-
-#include <errno.h>
-#include <stdio.h>
-
-#include "scudo.h"
-#include "private/bionic_globals.h"
-#include "private/WriteProtected.h"
-
-__LIBC_HIDDEN__ WriteProtected<libc_globals> __libc_globals;
-
-// Call the libc malloc initialisers.
-__attribute__((constructor(1))) static void __scudo_preinit() {
- __libc_globals.mutate(__libc_init_malloc);
-}
-
-extern "C" libc_shared_globals* __loader_shared_globals();
-
-__LIBC_HIDDEN__ libc_shared_globals* __libc_shared_globals() {
- return __loader_shared_globals();
-}
-
-#if defined(__i386__)
-__LIBC_HIDDEN__ void* __libc_sysinfo = reinterpret_cast<void*>(__libc_int0x80);
-#endif
-
-extern "C" void scudo_malloc_disable_memory_tagging() {}
-
-int scudo_mallopt(int /*param*/, int /*value*/) {
- return 0;
-}
-
-int scudo_malloc_info(int /*options*/, FILE* /*fp*/) {
- errno = ENOTSUP;
- return -1;
-}
-
-int scudo_malloc_iterate(uintptr_t, size_t, void (*)(uintptr_t, size_t, void*), void*) {
- return 0;
-}
-
-void scudo_malloc_disable() {
-}
-
-void scudo_malloc_enable() {
-}