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
27 lines
792 B
Text
27 lines
792 B
Text
{
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global:
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__loader_dlopen;
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__loader_dlclose;
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__loader_dlsym;
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__loader_dlerror;
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__loader_dladdr;
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__loader_android_update_LD_LIBRARY_PATH;
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__loader_android_get_LD_LIBRARY_PATH;
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__loader_dl_iterate_phdr;
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__loader_android_dlopen_ext;
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__loader_android_set_application_target_sdk_version;
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__loader_android_get_application_target_sdk_version;
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__loader_android_init_anonymous_namespace;
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__loader_android_create_namespace;
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__loader_dlvsym;
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__loader_android_dlwarning;
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__loader_cfi_fail;
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__loader_android_link_namespaces;
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__loader_android_link_namespaces_all_libs;
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__loader_android_get_exported_namespace;
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__loader_add_thread_local_dtor;
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__loader_remove_thread_local_dtor;
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rtld_db_dlactivity;
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local:
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*;
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};
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