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There is a loop that fills a byte array with zero-s. Let's use copy() instead
of setting elements one by one.
The new implementation is two time faster than the previous one and it is more
than 10x faster with the race detector.
Reported-by: syzbot+5f57d988a5f929af5a91@syzkaller.appspotmail.com
PiperOrigin-RevId: 369283919
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The syscall package has been deprecated in favor of golang.org/x/sys.
Note that syscall is still used in the following places:
- pkg/sentry/socket/hostinet/stack.go: some netlink related functionalities
are not yet available in golang.org/x/sys.
- syscall.Stat_t is still used in some places because os.FileInfo.Sys() still
returns it and not unix.Stat_t.
Updates #214
PiperOrigin-RevId: 360701387
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See https://github.com/golang/go/issues/19367 for rationale. Note that the
upstream decision arrived at in that thread, while useful for some of our use
cases, doesn't account for all of our SliceHeader use cases (we often use
SliceHeader to extract pointers from slices in a way that avoids bounds
checking and/or handles nil slices correctly) and also doesn't exist yet.
PiperOrigin-RevId: 358071574
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Fixes an error where in case of a receive buffer larger than the host send
buffer size for a host backed unix dgram socket we would end up swallowing EOF
from recvmsg syscall causing the read() to block forever.
PiperOrigin-RevId: 331192810
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Because the abi will depend on the core types for marshalling (usermem,
context, safemem, safecopy), these need to be flattened from the sentry
directory. These packages contain no sentry-specific details.
PiperOrigin-RevId: 291811289
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