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go/src/pkg/runtime/arch_arm.h

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runtime: add missing copyright R=golang-dev, rsc CC=golang-dev https://golang.org/cl/7884045
2013-03-19 11:40:29 -06:00
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
runtime: various arm fixes * correct symbol table size * do not reorder functions in output * traceback * signal handling * use same code for go + defer * handle leaf functions in symbol table R=kaib, dpx CC=golang-dev https://golang.org/cl/884041
2010-04-05 13:51:09 -06:00
enum {
runtime: faster finalizers Linux/amd64, 2 x Intel Xeon E5620, 8 HT cores, 2.40GHz benchmark old ns/op new ns/op delta BenchmarkFinalizer 420.00 261.00 -37.86% BenchmarkFinalizer-2 985.00 201.00 -79.59% BenchmarkFinalizer-4 1077.00 244.00 -77.34% BenchmarkFinalizer-8 1155.00 180.00 -84.42% BenchmarkFinalizer-16 1182.00 184.00 -84.43% BenchmarkFinalizerRun 2128.00 1378.00 -35.24% BenchmarkFinalizerRun-2 1655.00 1418.00 -14.32% BenchmarkFinalizerRun-4 1634.00 1522.00 -6.85% BenchmarkFinalizerRun-8 2213.00 1581.00 -28.56% BenchmarkFinalizerRun-16 2424.00 1599.00 -34.03% Darwin/amd64, Intel L9600, 2 cores, 2.13GHz benchmark old ns/op new ns/op delta BenchmarkChanCreation 1451.00 926.00 -36.18% BenchmarkChanCreation-2 3124.00 1412.00 -54.80% BenchmarkChanCreation-4 6121.00 2628.00 -57.07% BenchmarkFinalizer 684.00 420.00 -38.60% BenchmarkFinalizer-2 11195.00 398.00 -96.44% BenchmarkFinalizer-4 15862.00 654.00 -95.88% BenchmarkFinalizerRun 2025.00 1397.00 -31.01% BenchmarkFinalizerRun-2 3920.00 1447.00 -63.09% BenchmarkFinalizerRun-4 9471.00 1545.00 -83.69% R=golang-dev, cw, rsc CC=golang-dev https://golang.org/cl/4963057
2011-10-06 09:42:51 -06:00
thechar = '5',
cmd/ld, runtime: adjust symbol table representation This CL changes the encoding used for the Go symbol table, stored in the binary and used at run time. It does not change any of the semantics or structure: the bits are just packed a little differently. The comment at the top of runtime/symtab.c describes the new format. Compared to the Go 1.0 format, the main changes are: * Store symbol addresses as full-pointer-sized host-endian values. (For 6g, this means addresses are 64-bit little-endian.) * Store other values (frame sizes and so on) varint-encoded. The second change more than compensates for the first: for the godoc binary on OS X/amd64, the new symbol table is 8% smaller than the old symbol table (1,425,668 down from 1,546,276). This is a required step for allowing the host linker (gcc) to write the final Go binary, since it will have to fill in the symbol address slots (so the slots must be host-endian) and on 64-bit systems it may choose addresses above 4 GB. R=golang-dev, iant CC=golang-dev https://golang.org/cl/7403054
2013-02-26 20:38:14 -07:00
BigEndian = 0,
runtime: special-case append([]byte, string) for small strings Also make the crossover point an architecture-dependent constant, although it's the same everywhere for now. BenchmarkAppendStr1Byte 416 145 -65.14% BenchmarkAppendStr4Bytes 743 217 -70.79% BenchmarkAppendStr8Bytes 421 270 -35.87% BenchmarkAppendStr16Bytes 415 403 -2.89% BenchmarkAppendStr32Bytes 415 391 -5.78% R=golang-dev, iant CC=golang-dev https://golang.org/cl/7459044
2013-03-01 17:41:39 -07:00
CacheLineSize = 32,
runtime: nacl/arm support. LGTM=rsc R=rsc, iant, dave CC=golang-codereviews https://golang.org/cl/103680046
2014-07-10 13:14:49 -06:00
RuntimeGogoBytes = 84,
#ifdef GOOS_nacl
PhysPageSize = 65536,
#else
all: merge NaCl branch (part 1) See golang.org/s/go13nacl for design overview. This CL is the mostly mechanical changes from rsc's Go 1.2 based NaCl branch, specifically 39cb35750369 to 500771b477cf from https://code.google.com/r/rsc-go13nacl. This CL does not include working NaCl support, there are probably two or three more large merges to come. CL 15750044 is not included as it involves more invasive changes to the linker which will need to be merged separately. The exact change lists included are 15050047: syscall: support for Native Client 15360044: syscall: unzip implementation for Native Client 15370044: syscall: Native Client SRPC implementation 15400047: cmd/dist, cmd/go, go/build, test: support for Native Client 15410048: runtime: support for Native Client 15410049: syscall: file descriptor table for Native Client 15410050: syscall: in-memory file system for Native Client 15440048: all: update +build lines for Native Client port 15540045: cmd/6g, cmd/8g, cmd/gc: support for Native Client 15570045: os: support for Native Client 15680044: crypto/..., hash/crc32, reflect, sync/atomic: support for amd64p32 15690044: net: support for Native Client 15690048: runtime: support for fake time like on Go Playground 15690051: build: disable various tests on Native Client LGTM=rsc R=rsc CC=golang-codereviews https://golang.org/cl/68150047
2014-02-25 07:47:42 -07:00
PhysPageSize = 4096,
runtime: nacl/arm support. LGTM=rsc R=rsc, iant, dave CC=golang-codereviews https://golang.org/cl/103680046
2014-07-10 13:14:49 -06:00
#endif
cmd/gc: allocate select descriptor on stack benchmark old ns/op new ns/op delta BenchmarkSelectUncontended 220 165 -25.00% BenchmarkSelectContended 209 161 -22.97% BenchmarkSelectProdCons 1042 904 -13.24% But more importantly this change will allow to get rid of free function in runtime. Fixes #6494. LGTM=rsc, khr R=golang-codereviews, rsc, dominik.honnef, khr CC=golang-codereviews, remyoudompheng https://golang.org/cl/107670043
2014-07-20 05:07:10 -06:00
PCQuantum = 4,
Int64Align = 4
runtime: various arm fixes * correct symbol table size * do not reorder functions in output * traceback * signal handling * use same code for go + defer * handle leaf functions in symbol table R=kaib, dpx CC=golang-dev https://golang.org/cl/884041
2010-04-05 13:51:09 -06:00
};
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