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go/src/pkg/runtime/rt0_plan9_amd64.s

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src: Add support for 64-bit version of Plan 9 This set of changes extends the Plan 9 support to include the AMD64 architecture and should work on all versions of Plan 9. R=golang-dev, rminnich, noah.evans, rsc, minux.ma, npe CC=akskuma, golang-dev, jfflore, noah.evans https://golang.org/cl/6479052
2012-08-31 11:21:13 -06:00
// Copyright 2010 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: convert .s textflags from numbers to symbolic constants. Remove NOPROF/DUPOK from everything. Edits done with a script, except pclinetest.asm which depended on the DUPOK flag on main(). R=golang-dev, bradfitz CC=golang-dev https://golang.org/cl/12613044
2013-08-07 13:20:05 -06:00
#include "../../cmd/ld/textflag.h"
liblink, runtime: preliminary support for plan9/amd64 A TLS slot is reserved by _rt0_.*_plan9 as an automatic and its address (which is static on Plan 9) is saved in the global _privates symbol. The startup linkage now is exactly like that from Plan 9 libc, and the way we access g is exactly as if we'd have used privalloc(2). Aside from making the code more standard, this change drastically simplifies it, both for 386 and for amd64, and makes the Plan 9 code in liblink common for both 386 and amd64. The amd64 runtime code was cleared of nxm assumptions, and now runs on the standard Plan 9 kernel. Note handling fixes will follow in a separate CL. LGTM=rsc R=golang-codereviews, rsc, bradfitz, dave CC=0intro, ality, golang-codereviews, jas, minux.ma, mischief https://golang.org/cl/101510049
2014-07-02 05:04:10 -06:00
TEXT _rt0_amd64_plan9(SB),NOSPLIT,$24
MOVQ AX, _tos(SB)
LEAQ 16(SP), AX
MOVQ AX, _privates(SB)
MOVL $1, _nprivates(SB)
MOVL inargc-8(FP), DI
LEAQ inargv+0(FP), SI
runtime: rename _rt0_$GOARCH to _rt0_go There's no reason to use a different name on each architecture, and doing so makes it impossible for portable code to refer to the original Go runtime entry point. Rename it _rt0_go everywhere. This is a global search and replace only. R=golang-dev, bradfitz, minux.ma CC=golang-dev https://golang.org/cl/10196043
2013-06-11 14:49:24 -06:00
MOVQ $_rt0_go(SB), AX
src: Add support for 64-bit version of Plan 9 This set of changes extends the Plan 9 support to include the AMD64 architecture and should work on all versions of Plan 9. R=golang-dev, rminnich, noah.evans, rsc, minux.ma, npe CC=akskuma, golang-dev, jfflore, noah.evans https://golang.org/cl/6479052
2012-08-31 11:21:13 -06:00
JMP AX
DATA runtime·isplan9(SB)/4, $1
GLOBL runtime·isplan9(SB), $4
liblink, runtime: preliminary support for plan9/amd64 A TLS slot is reserved by _rt0_.*_plan9 as an automatic and its address (which is static on Plan 9) is saved in the global _privates symbol. The startup linkage now is exactly like that from Plan 9 libc, and the way we access g is exactly as if we'd have used privalloc(2). Aside from making the code more standard, this change drastically simplifies it, both for 386 and for amd64, and makes the Plan 9 code in liblink common for both 386 and amd64. The amd64 runtime code was cleared of nxm assumptions, and now runs on the standard Plan 9 kernel. Note handling fixes will follow in a separate CL. LGTM=rsc R=golang-codereviews, rsc, bradfitz, dave CC=0intro, ality, golang-codereviews, jas, minux.ma, mischief https://golang.org/cl/101510049
2014-07-02 05:04:10 -06:00
GLOBL _tos(SB), $8
GLOBL _privates(SB), $8
GLOBL _nprivates(SB), $4
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