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Russ Cox a840bf871e [dev.boringcrypto] crypto/internal/boring: add GC-aware cache
In the original BoringCrypto port, ecdsa and rsa's public and private
keys added a 'boring unsafe.Pointer' field to cache the BoringCrypto
form of the key. This led to problems with code that “knew” the layout
of those structs and in particular that they had no unexported fields.

In response, as an awful kludge, I changed the compiler to pretend
that field did not exist when laying out reflect data. Because we want
to merge BoringCrypto in the main tree, we need a different solution.

The different solution is this CL's boring.Cache, which is a
concurrent, GC-aware map from unsafe.Pointer to unsafe.Pointer (if
generics were farther along we could use them nicely here, but I am
afraid of breaking tools that aren't ready to see generics in the
standard library yet).

More complex approaches are possible, but a simple, fixed-size hash
table is easy to make concurrent and should be fine.

For #51940.

Change-Id: I44062a8defbd87b705a787cffc64c6a9d0132785
Reviewed-on: https://go-review.googlesource.com/c/go/+/395882
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2022-04-29 14:23:31 +00:00
.github .github: remove duplicate security link 2022-01-07 17:55:09 +00:00
api [dev.boringcrypto] crypto/x509: remove VerifyOptions.IsBoring 2022-04-29 14:23:29 +00:00
doc crypto/tls: remove tls10default GODEBUG flag 2022-04-27 17:20:34 +00:00
lib/time lib/time, time/tzdata: update to 2021e 2021-11-11 05:16:39 +00:00
misc [dev.boringcrypto] all: add boringcrypto build tags 2022-04-29 14:23:22 +00:00
src [dev.boringcrypto] crypto/internal/boring: add GC-aware cache 2022-04-29 14:23:31 +00:00
test cmd/compile/internal/syntax: parser to accept ~x as unary expression 2022-04-26 02:19:42 +00:00
.gitattributes
.gitignore internal/buildcfg: move build configuration out of cmd/internal/objabi 2021-04-16 19:20:53 +00:00
AUTHORS A+C: add Wen Yang (individual CLA) 2022-04-11 22:24:03 +00:00
CONTRIBUTING.md
CONTRIBUTORS A+C: add Wen Yang (individual CLA) 2022-04-11 22:24:03 +00:00
LICENSE
PATENTS
README.boringcrypto.md [dev.boringcrypto] crypto/internal/boring: update BoringCrypto module to certificate 3678 2020-11-05 17:59:43 +00:00
README.md README.md: update wiki link 2022-04-26 16:21:18 +00:00
SECURITY.md SECURITY.md: replace golang.org with go.dev 2022-04-26 19:59:47 +00:00
codereview.cfg [dev.boringcrypto] all: add codereview.cfg 2021-02-07 20:58:56 +00:00

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