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8252412: [macos11] system dynamic libraries removed from filesystem

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Co-authored-by: Dominik Röttsches <drott@google.com>
Reviewed-by: jiangli, valeriep
This commit is contained in:
Martin Buchholz 2021-01-27 04:31:29 +00:00
parent e1411fd4d4
commit c836da387e
1 changed files with 19 additions and 1 deletions
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20
src/java.smartcardio/unix/classes/sun/security/smartcardio/PlatformPCSC.java
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@ -110,8 +110,26 @@ class PlatformPCSC {
// if LIB2 exists, use that
return lib;
}
// As of macos 11, framework libraries have been removed from the file
// system, but in such a way that they can still be dlopen()ed, even
// though they can no longer be open()ed.
//
// https://developer.apple.com/documentation/macos-release-notes/macos-big-sur-11_0_1-release-notes
//
// """New in macOS Big Sur 11.0.1, the system ships with a built-in
// dynamic linker cache of all system-provided libraries. As part of
// this change, copies of dynamic libraries are no longer present on
// the filesystem. Code that attempts to check for dynamic library
// presence by looking for a file at a path or enumerating a directory
// will fail. Instead, check for library presence by attempting to
// dlopen() the path, which will correctly check for the library in the
// cache."""
//
// The directory structure remains otherwise intact, so check for
// existence of the containing directory instead of the file.
lib = PCSC_FRAMEWORK;
if (new File(lib).isFile()) {
if (new File(lib).getParentFile().isDirectory()) {
// if PCSC.framework exists, use that
return lib;
}