9ee4591cb4
This commit allows users to create a link without soname filters between
two linker namespaces.
The motivation is to establish one-way shared library isolation. For
example, assume that there are two linker namespaces `default` and
`vndk`. We would like to limit the shared libraries that can be used by
the `default` namespace. In the meanwhile, we would like to allow the
`vndk` namespace to use shared libs from the `default` namespace if the
soname cannot be find in the search path or loaded sonames of the `vndk`
namespace.
shared_libs = %VNDK_CORE_LIBRARIES%
shared_libs += %VNDK_SAMEPROCESS_LIBRARIES%
vndk <-------------------------------------------- default
\_______________________________________________/^
allow_all_shared_libs = true
android_link_namespaces_all_libs() is added to libdl, but it is
versioned as LIBC_PRIVATE. android_link_namespaces_all_libs() is only
for unit tests.
Bug: 69824336
Test: adb shell /data/nativetest/linker-unit-tests/linker-unit-tests32
Test: adb shell /data/nativetest64/linker-unit-tests/linker-unit-tests64
Test: adb shell /data/nativetest/bionic-unit-tests/bionic-unit-tests
Test: adb shell /data/nativetest64/bionic-unit-tests/bionic-unit-tests
Test: Update /system/etc/ld.config*.txt and check whether the vndk
linker namespace of the vendor process can access the shared libs from
the default linker namespace.
Change-Id: I2879f0c5f5af60c7e56f8f743ebd2872e552286b
61 lines
1.5 KiB
Text
61 lines
1.5 KiB
Text
# Generated by genversion-scripts.py. Do not edit.
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#
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# Copyright (C) 2015 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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LIBC {
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global:
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android_dlopen_ext; # introduced=21
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dl_iterate_phdr; # introduced-arm=21
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dl_unwind_find_exidx; # arm
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dladdr;
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dlclose;
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dlerror;
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dlopen;
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dlsym;
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local:
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*;
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};
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LIBC_N {
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global:
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dlvsym; # introduced=24
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} LIBC;
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LIBC_OMR1 { # introduced=27
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global:
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__cfi_shadow_size;
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__cfi_slowpath;
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__cfi_slowpath_diag;
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} LIBC_N;
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LIBC_PRIVATE {
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global:
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android_link_namespaces_all_libs;
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} LIBC_OMR1;
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LIBC_PLATFORM {
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global:
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__cfi_init;
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android_dlwarning;
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android_get_application_target_sdk_version;
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android_set_application_target_sdk_version;
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android_get_LD_LIBRARY_PATH;
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android_update_LD_LIBRARY_PATH;
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android_init_anonymous_namespace;
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android_create_namespace;
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android_link_namespaces;
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android_get_exported_namespace;
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} LIBC_OMR1;
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