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Commit Graph

22619 Commits

Author SHA1 Message Date
Austin Clements
506615d83e runtime: factor object dumping code out of greyobject
When checkmark fails, greyobject dumps both the object that pointed to
the unmarked object and the unmarked object. This code cluttered up
greyobject, was copy-pasted for the two objects, and the copy for
dumping the unmarked object was not entirely correct.

Extract object dumping out to a new function. This declutters
greyobject and fixes the bugs in dumping the unmarked object. The new
function is slightly cleaned up from the original code to have more
natural control flow and shows a marker on the field in the base
object that points to the unmarked object to make it easy to find.

Change-Id: Ib51318a943f50b0b99995f0941d03ee8876b9fcf
Reviewed-on: https://go-review.googlesource.com/7506
Reviewed-by: Rick Hudson <rlh@golang.org>
2015-03-17 01:46:35 +00:00
Austin Clements
830abc957a runtime: fix out of date comment
scanobject no longer returns the new wbuf.

Change-Id: I0da335ae5cd7ef7ea0e0fa965cf0e9f3a650d0e6
Reviewed-on: https://go-review.googlesource.com/7505
Reviewed-by: Rick Hudson <rlh@golang.org>
2015-03-17 01:46:20 +00:00
Russ Cox
e5be6432a8 cmd/internal/gc: mv builtins builtin
This directory is processed by mkbuiltin.go and generates builtin.go.
It should be named builtin too, not builtins, both for consistency
and because file and directory names in general are singular unless
forced otherwise.

Commented on CL 6233 too.

Change-Id: Ic5d3671443ae9292b69fda118f61a11c88d823fa
Reviewed-on: https://go-review.googlesource.com/7660
Reviewed-by: Minux Ma <minux@golang.org>
2015-03-17 01:28:13 +00:00
Russ Cox
1fdd1d181b cmd/6g: make proginfo register bits constants
Also replace proginfo call with cheaper calls where only flags are needed.

Change-Id: Ib6e5c12bd8752b87c0d8bcf22fa9e25e04a7941f
Reviewed-on: https://go-review.googlesource.com/7630
Reviewed-by: Rob Pike <r@golang.org>
2015-03-17 01:24:40 +00:00
Russ Cox
00b3b40b07 cmd/internal/obj/x86: minor optimization
- avoid copy in range ytab
- add fast path to prefixof

Change-Id: I88aa9d91a0abe80d253f7c3bca950b4613297499
Reviewed-on: https://go-review.googlesource.com/7628
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
2015-03-17 01:21:20 +00:00
Russ Cox
c8198344ef cmd/internal/gc: fmt.Sprintf elimination and minor cleanup
Change-Id: Iaf5a7d25e6308b32c17a38afbbd46befa17aa3a4
Reviewed-on: https://go-review.googlesource.com/7629
Reviewed-by: Rob Pike <r@golang.org>
2015-03-17 01:20:31 +00:00
Russ Cox
d7f6d46c5c cmd/...: remove use of func() { ... }() in loop increment
These were introduced during C -> Go translation when the loop increment
contained multiple statements.

Change-Id: Ic8abd8dcb3308851a1f7024de00711f0f984e684
Reviewed-on: https://go-review.googlesource.com/7627
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Rob Pike <r@golang.org>
2015-03-17 00:34:00 +00:00
Russ Cox
01512b3edb cmd/internal/gc: add -d disablenil debug option to turn off nil checks
Change-Id: I18f2e2ee141ebb65a8579ee1e440cb9c2069ef86
Reviewed-on: https://go-review.googlesource.com/7626
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Minux Ma <minux@golang.org>
2015-03-17 00:33:46 +00:00
Russ Cox
13f9c8b08e cmd/gc: rewrite argtype to substitute in a single pass
Substituting in multiple passes meant walking the type
multiple times, and worse, if a complex type was substituted
in an early pass, later passes would follow it, possibly recursively,
until hitting the depth 10 limit.

Change-Id: Ie61d6ec08438e297baabe932afe33d08f358e55f
Reviewed-on: https://go-review.googlesource.com/7625
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Rob Pike <r@golang.org>
2015-03-17 00:33:15 +00:00
Russ Cox
5fca39967d cmd/dist: show reason for command failure
Change-Id: I9fb5c1c11a750766ae2d9532869d5ab26f1cf9cf
Reviewed-on: https://go-review.googlesource.com/7624
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>
2015-03-17 00:30:50 +00:00
Russ Cox
861546543a cmd/internal/obj: reimplement line history
In addition to possibly being clearer code,
this replaces an O(n) lookup with an O(log n) lookup.

Change-Id: I0a574c536a965a87f7ad6dcdcc30f737bc771cd5
Reviewed-on: https://go-review.googlesource.com/7623
Reviewed-by: Rob Pike <r@golang.org>
2015-03-17 00:30:37 +00:00
Joël Stemmer
ebe3d693d4 crypto/tls: return correct hash function when using client certificates in handshake
Commit f1d669aee9 added support for
AES_256_GCM_SHA384 cipher suites as specified in RFC5289. However, it
did not take the arbitrary hash function into account in the TLS client
handshake when using client certificates.

The hashForClientCertificate method always returned SHA256 as its
hashing function, even if it actually used a different one to calculate
its digest. Setting up the connection would eventually fail with the
error "tls: failed to sign handshake with client certificate:
crypto/rsa: input must be hashed message".

Included is an additional test for this specific situation that uses the
SHA384 hash.

Fixes #9808

Change-Id: Iccbf4ab225633471ef897907c208ad31f92855a3
Reviewed-on: https://go-review.googlesource.com/7040
Reviewed-by: Adam Langley <agl@golang.org>
Run-TryBot: Adam Langley <agl@golang.org>
2015-03-16 23:38:51 +00:00
Nick Sullivan
0a048ce5e9 crypto/rsa: implement crypto.Decrypter
Decrypter is an interface to support opaque private keys that perform
decryption operations. This interface is analogous to the crypto.Signer
interface.

This change introduces the crypto.Decrypter interface and implements
the crypto.Decrypter interface for rsa.PrivateKey with both OAEP and
PKCS#1 v1.5 padding modes.

Change-Id: I433f649f84ed3c2148337d735cafd75f1d94a904
Reviewed-on: https://go-review.googlesource.com/3900
Reviewed-by: Adam Langley <agl@golang.org>
2015-03-16 23:15:08 +00:00
Russ Cox
fa97136038 cmd/internal/obj: add basic test of line history
Change-Id: Ic22e004b43bd98e712befb30684be16d8214c94a
Reviewed-on: https://go-review.googlesource.com/7622
Reviewed-by: Rob Pike <r@golang.org>
2015-03-16 23:07:28 +00:00
Russ Cox
049eee6806 cmd/internal/obj: use map for symbol table
Change-Id: I105c1e7730c1e7ccf36297b9cbf96dc0a4868013
Reviewed-on: https://go-review.googlesource.com/7621
Reviewed-by: Rob Pike <r@golang.org>
2015-03-16 23:07:22 +00:00
Russ Cox
8e2a57e643 cmd/pprof/internal/profile: insert blank line after non-doc comment
Change-Id: I91fe72c60d6c41644780474620e05380e9af2a3d
Reviewed-on: https://go-review.googlesource.com/7620
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Rob Pike <r@golang.org>
2015-03-16 23:07:15 +00:00
Russ Cox
0c31992eb3 test: add test that variables captured by deferred funcs are current on fault
This came up in private mail.
It works today and I want to make sure it stays working.

Change-Id: I13ebdc2dfadb3c72d7f179be89883137320c05d0
Reviewed-on: https://go-review.googlesource.com/7390
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Rob Pike <r@golang.org>
2015-03-16 23:07:06 +00:00
Rob Pike
5764befa5a text/template: protect against explicit nil in field chains
An explicit nil in an expression like nil.Foo caused a panic
because the evaluator attempted to reflect on the nil.
A typeless nil like this cannot be used to do anything, so
just error out.

Fixes #9426

Change-Id: Icd2c9c7533dda742748bf161eced163991a12f54
Reviewed-on: https://go-review.googlesource.com/7643
Reviewed-by: David Symonds <dsymonds@golang.org>
2015-03-16 22:35:49 +00:00
Shenghou Ma
10a98dd6d9 doc/go_mem.html: correct the channel example
While we're here, also fix two HTML issues.

Fixes #9235.

Change-Id: I6e2f50931c0f387881271484a726ac2308518cf4
Reviewed-on: https://go-review.googlesource.com/7602
Reviewed-by: Rob Pike <r@golang.org>
2015-03-16 21:43:31 +00:00
Josh Bleecher Snyder
e2ca3e6c0f cmd/internal/gc: remove dead code
Change-Id: Id5ce859bd4b6318dc9104f7377ae23d7f0bc30cd
Reviewed-on: https://go-review.googlesource.com/7640
Reviewed-by: Minux Ma <minux@golang.org>
2015-03-16 19:43:12 +00:00
Aram Hăvărneanu
76a2ee3bcd cmd/objdump: disable TestDisasm.* on arm64
ARM64 doesn't have disassembler yet.

Change-Id: I016fa013b5ff50dc49d38ade42351b79be023d80
Reviewed-on: https://go-review.googlesource.com/7149
Reviewed-by: Minux Ma <minux@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2015-03-16 18:46:52 +00:00
Aram Hăvărneanu
a25e3c03f3 os/signal, hash/crc32: add arm64 build tags
Change-Id: I6ca9caec8ccf12618e56dcf6b83328e7acf8b1ec
Reviewed-on: https://go-review.googlesource.com/7148
Reviewed-by: Minux Ma <minux@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>
Reviewed-by: Russ Cox <rsc@golang.org>
2015-03-16 18:46:43 +00:00
Aram Hăvărneanu
ddf6d8005d test: fix nosplit test, and disable nilptr3 test on arm64
Change-Id: I5d40e04395de743a8fdcfa8bdc0e580729bc66a3
Reviewed-on: https://go-review.googlesource.com/7147
Reviewed-by: Minux Ma <minux@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-03-16 18:46:35 +00:00
Aram Hăvărneanu
1abd8185b2 reflect: add support for GOARCH=arm64
Change-Id: I033eecff5e5838ba677378ac884bf5f29267e880
Reviewed-on: https://go-review.googlesource.com/7146
Reviewed-by: Minux Ma <minux@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2015-03-16 18:46:27 +00:00
Aram Hăvărneanu
2a0833da50 sync/atomic: add support for GOARCH=arm64
Change-Id: I11cd4b5e8daf3805af0eaa83b55b20da889702f4
Reviewed-on: https://go-review.googlesource.com/7145
Reviewed-by: Dave Cheney <dave@cheney.net>
Reviewed-by: Russ Cox <rsc@golang.org>
2015-03-16 18:46:18 +00:00
Aram Hăvărneanu
f0aef42ea1 math, math/big: add support for GOARCH=arm64
Change-Id: Ief12e1435a40dd2eaddc3f97f63be44c4dd2e050
Reviewed-on: https://go-review.googlesource.com/7144
Reviewed-by: Minux Ma <minux@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2015-03-16 18:46:10 +00:00
Aram Hăvărneanu
d0d9310df9 syscall: add support for GOARCH=arm64
Change-Id: Ia817e78d9678a365a76fea5e4dbe8f8a5aab0bac
Reviewed-on: https://go-review.googlesource.com/7143
Reviewed-by: Russ Cox <rsc@golang.org>
2015-03-16 18:46:02 +00:00
Aram Hăvărneanu
846ee0465b runtime: add support for linux/arm64
Change-Id: Ibda6a5bedaff57fd161d63fc04ad260931d34413
Reviewed-on: https://go-review.googlesource.com/7142
Reviewed-by: Russ Cox <rsc@golang.org>
2015-03-16 18:45:54 +00:00
Aram Hăvărneanu
5a0c322bce cmd/dist: add support for GOARCH=arm64
Change-Id: I92b4301b64054272d78dd15c16bf6ff592acad26
Reviewed-on: https://go-review.googlesource.com/7141
Reviewed-by: Minux Ma <minux@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-03-16 18:45:45 +00:00
Aram Hăvărneanu
3ab794c8c6 cmd/cgo: add support for GOARCH=arm64
Change-Id: Ia6c3d5e7a32b20e3c45d9485e66b48cd02644280
Reviewed-on: https://go-review.googlesource.com/7140
Reviewed-by: Minux Ma <minux@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>
Reviewed-by: Russ Cox <rsc@golang.org>
2015-03-16 18:45:35 +00:00
Aram Hăvărneanu
02c1a9d87d cmd/7g: add ARM64 Go compiler, based on 9g
No peep optimizer yet.

Change-Id: Ifa5f993cd6ac5e34783c0df41faf772fbce96ae2
Reviewed-on: https://go-review.googlesource.com/7049
Reviewed-by: Russ Cox <rsc@golang.org>
2015-03-16 18:45:26 +00:00
Aram Hăvărneanu
3d1ce27ba5 cmd/7l: add the ARM64 linker
Only internal linking without cgo is supported for now.

Change-Id: I91eb1572c1ccc805db62fc4c29080df98797d51a
Reviewed-on: https://go-review.googlesource.com/7048
Reviewed-by: Minux Ma <minux@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2015-03-16 18:45:16 +00:00
Aram Hăvărneanu
18d9ddc35c cmd/asm: add support for ARM64
Pre/post-index addressing modes with writeback use .W and .P
instruction suffixes, like on ARM.

Complex addressing modes are not supported yet.

Change-Id: I537a1c3fe5b057c0812662677d0010bc8c468ffb
Reviewed-on: https://go-review.googlesource.com/7047
Reviewed-by: Rob Pike <r@golang.org>
2015-03-16 18:45:08 +00:00
Aram Hăvărneanu
26bbe7ac9b cmd/internal/obj, cmd/internal/obj/arm64: add support for GOARCH=arm64
ARM64 (ARMv8) has 32 general purpose, 64-bit integer registers
(R0-R31), 32 64-bit scalar floating point registers (F0-F31), and
32 128-bit vector registers (unused, V0-V31).

R31 is either the stack pointer (RSP), or the zero register (ZR),
depending on the instruction. Note the distinction between the
hardware stack pointer, RSP, and the virtual stack pointer SP.

The (hardware) stack pointer must be 16-byte aligned at all times;
the RSP register itself must be aligned, offset(RSP) only has to
have natural alignment.

Instructions are fixed-width, and are 32-bit wide. ARM64 supports
ARMv7 too (32-bit ARM), but not in the same process. In general,
there is not much in common between 32-bit ARM and ARM64, it's a
new architecture.

All implementations have floating point instructions.

This change adds a Prog.To3 field analogous to Prog.To. It is used
by exclusive load/store instructions such as STLXR which read from
one register, and write to both a register and a memory address.

	STLXRW	R1, (R0), R3

This will store the word contained in R1 to the memory address
pointed by R0. R3 will be updated with the status result of the
store. It is used to implement atomic operations.

No other changes are made to the portable Prog and Addr structures.

Change-Id: Ie839029aa5265bbad35769d9689eca11e1c48c47
Reviewed-on: https://go-review.googlesource.com/7046
Reviewed-by: Russ Cox <rsc@golang.org>
2015-03-16 18:44:57 +00:00
Aram Hăvărneanu
25e213752b cmd/go: disable verifyAsm for arm64
ARM64 doesn't have the old assembler.

Change-Id: I9253271029440e2b7f2813d3e98a7d2e7a65bfbc
Reviewed-on: https://go-review.googlesource.com/7045
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-03-16 18:44:47 +00:00
Aram Hăvărneanu
272921b5d8 go/build: add GOARCH=arm64
Change-Id: I51db032e3dc2762d94e4000914b30813946250f7
Reviewed-on: https://go-review.googlesource.com/7044
Reviewed-by: Minux Ma <minux@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2015-03-16 18:44:35 +00:00
Aram Hăvărneanu
c23e21e672 .gitignore: ignore ARM64 build products
Change-Id: I56297aac4ee282fd117ec525b88dee4769477111
Reviewed-on: https://go-review.googlesource.com/7560
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2015-03-16 18:44:22 +00:00
Shenghou Ma
dcf1ab3167 doc/go1.5: correct archive/zip change
Change-Id: I7bac7b659b7ff425c6f896c286d0f89f05eff6bd
Reviewed-on: https://go-review.googlesource.com/7601
Reviewed-by: Minux Ma <minux@golang.org>
2015-03-15 21:24:35 +00:00
Joel Sing
6900a421a4 sync/atomic: add support for openbsd/arm
Change-Id: I45383de6d627be35f40e07a9008b6773f5c2b0d0
Reviewed-on: https://go-review.googlesource.com/7613
Reviewed-by: Minux Ma <minux@golang.org>
2015-03-15 09:12:45 +00:00
Joel Sing
6ed6cb4550 cmd/dist: use GOARM=5 for openbsd/arm
OpenBSD/arm only currently supports softfloat, hence make the default GOARM=5.

Change-Id: Ie3e8f457f001b3803d17ad9bc4ab957b2da18c6a
Reviewed-on: https://go-review.googlesource.com/7614
Reviewed-by: Minux Ma <minux@golang.org>
2015-03-15 09:11:56 +00:00
Joel Sing
550149fb04 syscall: add support for openbsd/arm
Change-Id: I9fe15781f52e0d16707a9c021cf800319721a606
Reviewed-on: https://go-review.googlesource.com/4913
Reviewed-by: Minux Ma <minux@golang.org>
2015-03-15 04:07:54 +00:00
Joel Sing
be3133bfda runtime: add support for openbsd/arm
Change-Id: I2bc101aa19172e705ee4de5f3c73a8b4bbf4fa6f
Reviewed-on: https://go-review.googlesource.com/4912
Reviewed-by: Minux Ma <minux@golang.org>
2015-03-15 04:06:26 +00:00
Joel Sing
3e981d9830 doc: note removal of dragonfly/386 port
Change-Id: Ibb7e4f6b95b7a9782a47221cafbe4f20dd77fd38
Reviewed-on: https://go-review.googlesource.com/7583
Reviewed-by: Minux Ma <minux@golang.org>
2015-03-15 04:04:47 +00:00
Shenghou Ma
d7e3d69e1c runtime: skip TestStdcallAndCDeclCallbacks when gcc is missing
Fixes #10167.

Change-Id: Ib6c6b2b5dde47744b69f65482a21964fa3c12090
Reviewed-on: https://go-review.googlesource.com/7600
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2015-03-15 00:37:05 +00:00
Joel Sing
3b1d692093 all: remove dragonfly/386 port
DragonFlyBSD dropped support for i386 in 4.0 and there is no longer a
dragonfly/386 - as such, remove the Go port.

Fixes #8951
Fixes #7580
Fixes #7421

Change-Id: I69022ab2262132e8f97153f14dc8c37c98527008
Reviewed-on: https://go-review.googlesource.com/7543
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>
Reviewed-by: Minux Ma <minux@golang.org>
Run-TryBot: Joel Sing <jsing@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-03-14 10:47:19 +00:00
Josh Bleecher Snyder
facd79e4be encoding/binary: cull dead code
Change-Id: I91f9b5280e08e005f5a891aaa249267c211d814b
Reviewed-on: https://go-review.googlesource.com/7592
Reviewed-by: Minux Ma <minux@golang.org>
2015-03-14 02:51:22 +00:00
Ian Lance Taylor
5158147e24 debug/elf: support reading debug info from 32-bit PPC objects
Fixes #10118.

Change-Id: I4a2e6748db609c6eed1d68c824b81c59bd7b875c
Reviewed-on: https://go-review.googlesource.com/7590
Reviewed-by: Minux Ma <minux@golang.org>
2015-03-14 01:31:28 +00:00
Ian Lance Taylor
6e3cf70e68 debug/gosym: fix typo in comment
Change-Id: Ieb13359c5bbe26bbf7baaaa8eb63d5e90bdefdd8
Reviewed-on: https://go-review.googlesource.com/7591
Reviewed-by: Minux Ma <minux@golang.org>
2015-03-14 01:28:30 +00:00
Michael Hudson-Doyle
8c3cc58d0c cmd/internal/ld: remove some dead code
Just little bits and pieces I noticed were unused in passing, and
some more found with https://github.com/opennota/check.

Change-Id: I199fecdbf8dc2ff9076cf4ea81395275c7f171c3
Reviewed-on: https://go-review.googlesource.com/7033
Reviewed-by: Minux Ma <minux@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-03-14 01:04:25 +00:00
Matthew Dempsky
d6dfb0295b cmd/internal/gc: remove unused fields
Change-Id: I3096a7497955bc475739739ee23be387e9162867
Reviewed-on: https://go-review.googlesource.com/7210
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-03-14 01:03:54 +00:00