mirror of
https://github.com/golang/go
synced 2024-11-23 18:10:04 -07:00
6fd387b35b
Change-Id: Iff27fa0ca50fe9e41d811d30df41fc2d3057aa1d Reviewed-on: https://go-review.googlesource.com/9792 Reviewed-by: Rob Pike <r@golang.org>
138 lines
7.9 KiB
Plaintext
138 lines
7.9 KiB
Plaintext
Overall:
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toolchain in Go
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new GC
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Language:
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permit omission of key type in map composite literals where key is a composite literal (https://golang.org/cl/2591)
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Build:
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Go 1.4 required to build (https://golang.org/cl/2470, https://golang.org/cl/2993)
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New Ports:
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darwin/arm, a.k.a iOS. (https://golang.org/cl/2118, 2119, 3273, 2121, 2122, ..., 2127)
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darwin/arm64
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linux/arm64 (cgo is supported, but only with external linking)
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openbsd/arm (no cgo or external linking)
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The port to Snow Leopard (OS X 10.6) is no longer actively maintained.
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Runtime:
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goroutine scheduling order changed; never guaranteed by language, but can break tests that implicitly assume a specific execution order
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Removed Ports:
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dragonfly/386 (https://golang.org/cl/7543)
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API additions and behavior changes:
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archive/zip: add (*Writer).SetOffset method (https://golang.org/cl/7445)
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bufio: add Reader.Discard (https://golang.org/cl/2260)
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bytes: add Buffer.Cap (https://golang.org/cl/8342)
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bytes, strings: add Reader.Size (https://golang.org/cl/3199)
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bytes, strings: add LastIndexByte (https://golang.org/cl/9500)
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crypto/cipher: clarify what will happen if len(src) != len(dst) for the Stream interface. (https://golang.org/cl/1754)
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crypto/elliptic: add Name field to CurveParams struct (https://golang.org/cl/2133)
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crypto/elliptic: Unmarshaling points now automatically checks that the point is on the curve (https://golang.org/cl/2421)
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crypto/tls: change default minimum version to TLS 1.0. (https://golang.org/cl/1791)
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crypto/tls: including Certificate Transparency SCTs in the handshake is now supported (https://golang.org/cl/8988)
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crypto/tls: session ticket keys can now be rotated at runtime (https://golang.org/cl/9072)
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crypto/tls: servers will now always call GetCertificate to pick a certificate for a connection when Certificates is empty (https://golang.org/cl/8792)
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crypto/x509: wildcards are now only accepted as the first label (https://golang.org/cl/5691)
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crypto/x509: unknown critical extensions now cause errors in Verify, not when parsing (https://golang.org/cl/9390)
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database/sql: add Stats (https://golang.org/cl/7950)
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encoding/base64: add unpadded encodings (https://golang.org/cl/1511)
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flag: new nicer format for PrintDefaults (https://golang.org/cl/7330)
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fmt: empty slices now print nothing with %x (bug fix) (https://golang.org/cl/8864)
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fmt: reflect.Value now prints what it holds (https://golang.org/cl/8731)
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go/ast: add Implicit field to ast.EmptyStmt; changed meaning of ast.EmptyStmt.Semicolon position (https://golang.org/cl/5720)
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go/build: reserved GOARCHes for common architectures (https://golang.org/cl/9644)
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io: add CopyBuffer, Copy with user-provided buffer (https://golang.org/cl/8730)
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log: add SetOutput functions (https://golang.org/cl/2686, https://golang.org/cl/3023)
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log: add LUTC flag (https://golang.org/cl/8761)
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math/big: add arbitrary precision Floats (many cl's)
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math/big: add Jacobi and Int.ModSqrt (https://golang.org/cl/1886)
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mime: add ExtensionByType (https://golang.org/cl/7444)
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mime/quotedprintable: new package (https://golang.org/cl/5940 + others)
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net: add Source field to OpError (https://go-review.googlesource.com/9231)
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net/http: support for setting trailers from a server Handler (https://golang.org/cl/2157)
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net/http: ignore the Unix epoch time in ServeContent (https://golang.org/cl/7915)
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net/http/cgi: fix REMOTE_ADDR, REMOTE_HOST, add REMOTE_PORT (https://golang.org/cl/4933)
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net/smtp: add TLSConnectionState accessor (https://golang.org/cl/2151)
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os: add LookupEnv (https://golang.org/cl/9791)
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os/signal: add Ignore and Reset (https://golang.org/cl/3580)
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reflect: add ArrayOf (https://golang.org/cl/4111)
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reflect: add FuncOf (https://golang.org/cl/1996)
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runtime, syscall: use SYSCALL instruction on FreeBSD (Go 1.5 now requires FreeBSD 8-STABLE+) (https://golang.org/cl/3020)
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runtime, syscall: use get_random_bytes syscall for NaCl (Go 1.5 now requires NaCl SDK pepper-39 or above) (https://golang.org/cl/1755)
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strings: add Compare(x, y string) int, for symmetry with bytes.Compare (https://golang.org/cl/2828)
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syscall: Add Foreground and Pgid to SysProcAttr (https://golang.org/cl/5130)
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syscall: add missing Syscall9 for darwin/amd64 (https://golang.org/cl/6555)
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testing/quick: support generation of arrays (https://golang.org/cl/3865)
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text/template: add Options method (https://golang.org/cl/8462)
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text/template: huge integers are now parse errors (https://golang.org/cl/9651)
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time: add time.AppendFormat(https://golang.org/cl/1760)
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Tools:
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build: external linking support for windows (https://golang.org/cl/7163, 7282, 7283, 7284, 7534, 7535)
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cmd/cover: tool now lives in the standard repository (https://golang.org/cl/9560)
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cmd/gc: constant arithmetic is based on math/big (https://golang.org/cl/7830, 7851, 7857, 8426, 7858, 7912, 8171)
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cmd/go, go/build: add ${SRCDIR} variable expansion to cgo lines (https://golang.org/cl/1756)
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cmd/go: add $DOLLAR to generate's variables (https://golang.org/cl/8091)
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cmd/go: std wildcard now excludes commands in main repo (https://golang.org/cl/5550)
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cmd/go: .swig/.swigcxx files now require SWIG 3.0.6 or later
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cmd/go: add -run flag to go generate (https://golang.org/cl/9005)
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cmd/go: add $GOLINE to generate's variables (https://golang.org/cl/9007)
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cmd/go: add go doc (https://golang.org/cl/9227)
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cmd/vet: better validation of struct tags (https://golang.org/cl/2685)
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cmd/ld: no longer record build timestamp in Windows PE file header (https://golang.org/cl/3740)
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cmd/go: add -toolexec build option
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cmd/go: drop -ccflags build option
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cmd/go: add -asmflags build option
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cmd/go: add -buildmode build option
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cmd/gc: add -dynlink option (for amd64 only)
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cmd/ld: add -buildmode option
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cmd/trace: new command to view traces (https://golang.org/cl/3601)
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Performance:
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cmd/gc: evaluate concrete == interface without allocating (https://golang.org/cl/2096)
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cmd/gc: optimize memclr of slices and arrays (https://golang.org/cl/2520)
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cmd/gc: transform closure calls to function calls (https://golang.org/cl/4050)
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cmd/gc: transitive inlining (https://golang.org/cl/5952)
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cmd/gc, runtime: speed up some cases of _, ok := i.(T) (https://golang.org/cl/7697)
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cmd/gc: speed up large string switches (https://golang.org/cl/7698)
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cmd/gc: inline x := y.(*T) and x, ok := y.(*T) (https://golang.org/cl/7862)
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cmd/gc: allocate backing storage for non-escaping interfaces on stack (https://golang.org/cl/8201)
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encoding/xml: avoid an allocation for tags without attributes (https://golang.org/cl/4160)
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image: many optimizations
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runtime: add ARM runtime.cmpstring and bytes.Compare (https://golang.org/cl/8010)
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sort: number of Sort performance optimizations (https://golang.org/cl/2100, https://golang.org/cl/2614, ...)
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strconv: optimize decimal to string conversion (https://golang.org/cl/2105)
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strconv: optimize float to string conversion (https://golang.org/cl/5600)
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sync: add active spinning to Mutex (https://golang.org/cl/5430)
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math/big: faster assembly kernels for amd64 and 386 (https://golang.org/cl/2503, https://golang.org/cl/2560)
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math/big: faster "pure Go" kernels for platforms w/o assembly kernels (https://golang.org/cl/2480)
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regexp: port RE2's bitstate backtracker to the regexp package (https://golang.org/cl/2153)
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Assembler:
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New cmd/asm tool (now use go tool asm, not go tool 6a)
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Assembler now supports -dynlink option.
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ARM assembly syntax has had some features removed.
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- mentioning SP or PC as a hardware register
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These are always pseudo-registers except that in some contexts
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they're not, and it's confusing because the context should not affect
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which register you mean. Change the references to the hardware
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registers to be explicit: R13 for SP, R15 for PC.
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- constant creation using assignment
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The files say a=b when they could instead say #define a b.
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There is no reason to have both mechanisms.
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- R(0) to refer to R0.
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Some macros use this to a great extent. Again, it's easy just to
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use a #define to rename a register.
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Also expression evaluation now uses uint64s instead of signed integers and the
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precedence of operators is now Go-like rather than C-like.
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