The HKDF extract function uses HMAC under the hood, but requiring
applications to directly use HMAC functions reduces clarity and
feels like the wrong abstraction.
So, in order to get the PRK length, add a `prk_length` constant
that applications can use directly.
Also add an `extractInit()` function for cases where the keying
material has to be provided as multiple chunks.
See also commit 7287c7482a2c694c7c7f56b9f7c1744a7ae7905f where
LinearFifo is removed from BufferedWriter
Basically, LinearFifo does extra work via copying bytes and increasing
an offset.
This hack was initially introduced as we would export all symbols
unconditionally, including non-function definitions. This would cause
an error from the Wasmtime runtime engine, which this flag would
suppress. As we now properly export symbols, this flag is no longer
needed and any user running into this error can manually include it.
This commit also adds the `--import-symbols` ability to build.zig
When we're compiling compiler_rt for any WebAssembly target, we do
not want to expose all the compiler-rt functions to the host runtime.
By setting the visibility of all exports to `hidden`, we allow the
linker to resolve the symbols during linktime, while not expose the
functions to the host runtime. This also means the linker can
properly garbage collect any compiler-rt function that does not get
resolved. The symbol visibility for all target remains the same as
before: `default`.
No longer automatically append the `--export` flag for each exported
function unconditionally. This was essentially a hack to prevent
binary bloat caused by compiler-rt symbols being always included in
the final binary as they were exported and therefore not garbage-
collected. This is no longer needed as we now support the ability to
set the visibility of exports.
This essentially reverts 6d951aff7e32b1b0252d341e66517a9a9ee98a2d
This reverts commit 3370d58956ecc744a004dff47b0437473f0ef7da.
This commit was done with an LLVM build that did not have assertions
enabled. There are LLVM assertions being triggered due to this commit.
Reopens#10627Reopens#12013Reopens#12027
This reverts commit 55c3efcb58cc153fc3109a61c6949e470b57b81e.
This caused a regression when building Zig with Homebrew.
Also I don't like that it prints a message on success. Only when there
is a problem should an error message be printed.
closes#14093
`-undefined dynamic_lookup` was added in #13991. `-undefined error` is the
opposite, and can be used to revert an `-undefined dynamic_lookup` flag
specified previously on the command line.
