This patch adds an instance method on `Linker`, namely
`Linker::canonicalLayouts` which returns all the layouts known by the linker as
implementing some ABI type. For instance, if I call this on my machine
(Linux/x64) I get this:
jshell> import java.lang.foreign.*;
jshell> Linker.nativeLinker().canonicalLayouts()
$2 ==> {char16_t=c16, int8_t=b8, long=j64, size_t=j64, bool=z8, int=i32, long
long=j64, int64_t=j64, void*=a64, float=f32, char=b8, int16_t=s16, int32_t=i32,
short=s16, double=d64}
This can be useful to discover the ABI types supported by a linker
implementation, as well as for, in the future, add support for more exotic (and
platform-dependent) linker types, such as `long double` or `complex long`.
-------------
Commit messages:
- Tweak javadoc
- Initial push
Changes: https://git.openjdk.org/jdk/pull/14037/files
Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=14037&range=00
Issue: https://bugs.openjdk.org/browse/JDK-8308293
Stats: 105 lines in 3 files changed: 74 ins; 5 del; 26 mod
Patch: https://git.openjdk.org/jdk/pull/14037.diff
Fetch: git fetch https://git.openjdk.org/jdk.git pull/14037/head:pull/14037
PR: https://git.openjdk.org/jdk/pull/14037
