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go/src/runtime/rt0_android_arm.s

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all: add GOOS=android As android and linux have significant overlap, and because build tags are a poor way to represent an OS target, this CL introduces an exception into go/build: linux is treated as a synonym for android when matching files. http://golang.org/s/go14android https://groups.google.com/forum/#!topic/golang-dev/P1ATVp1mun0 LGTM=rsc, minux R=golang-codereviews, mikioh.mikioh, dave, aram, minux, gobot, rsc, aram.h, elias.naur, iant CC=golang-codereviews, rsc https://golang.org/cl/105270043
2014-07-01 15:21:50 -06:00
// Copyright 2014 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: use new #include "textflag.h" I did this just to clean things up, but it will be important when we drop the pkg directory later. LGTM=bradfitz R=r, bradfitz CC=golang-codereviews https://golang.org/cl/132600043
2014-09-04 21:05:18 -06:00
#include "textflag.h"
all: add GOOS=android As android and linux have significant overlap, and because build tags are a poor way to represent an OS target, this CL introduces an exception into go/build: linux is treated as a synonym for android when matching files. http://golang.org/s/go14android https://groups.google.com/forum/#!topic/golang-dev/P1ATVp1mun0 LGTM=rsc, minux R=golang-codereviews, mikioh.mikioh, dave, aram, minux, gobot, rsc, aram.h, elias.naur, iant CC=golang-codereviews, rsc https://golang.org/cl/105270043
2014-07-01 15:21:50 -06:00
runtime, sync/atomic: use NOFRAME on arm This replaces frame size -4 with the NOFRAME flag in arm assembly. This was automated with: sed -i -e 's/\(^TEXT.*[A-Z]\),\( *\)\$-4/\1|NOFRAME,\2$0/' $(find -name '*_arm.s') Plus three manual comment changes found by: grep '\$-4' $(find -name '*_arm.s') The go binary is identical before and after this change. Change-Id: I0310384d1a584118c41d1cd3a042bb8ea7227ef9 Reviewed-on: https://go-review.googlesource.com/92042 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-01-25 10:15:23 -07:00
TEXT _rt0_arm_android(SB),NOSPLIT|NOFRAME,$0
all: add GOOS=android As android and linux have significant overlap, and because build tags are a poor way to represent an OS target, this CL introduces an exception into go/build: linux is treated as a synonym for android when matching files. http://golang.org/s/go14android https://groups.google.com/forum/#!topic/golang-dev/P1ATVp1mun0 LGTM=rsc, minux R=golang-codereviews, mikioh.mikioh, dave, aram, minux, gobot, rsc, aram.h, elias.naur, iant CC=golang-codereviews, rsc https://golang.org/cl/105270043
2014-07-01 15:21:50 -06:00
MOVW (R13), R0 // argc
MOVW $4(R13), R1 // argv
MOVW $_rt0_arm_linux1(SB), R4
B (R4)
runtime: add _rt0_arm_android_lib At the moment this function does nothing, runtime initialization is still done in android.c:init_go_runtime. Fixes #10358 Change-Id: I1d762383ba61efcbcf0bbc7c77895f5c1dbf8968 Reviewed-on: https://go-review.googlesource.com/8510 Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
2015-04-06 16:43:25 -06:00
TEXT _rt0_arm_android_lib(SB),NOSPLIT,$0
runtime: shared library init support for android/arm. Follows http://golang.org/cl/8454, a similar CL for arm architectures. This CL involves android-specific changes, namely, synthesizing argv/auxv, as android doesn't provide those to the init functions. This code is based on crawshaw@ android code in golang.org/x/mobile. Change-Id: I32364efbb2662e80270a99bd7dfb1d0421b5417d Reviewed-on: https://go-review.googlesource.com/8457 Reviewed-by: David Crawshaw <crawshaw@golang.org>
2015-04-03 10:48:51 -06:00
MOVW $1, R0 // argc
MOVW $_rt0_arm_android_argv(SB), R1 // **argv
runtime: unify arm entry point code Change-Id: Id51a2d63f7199b3ff71cedd415345ad20e5bd981 Reviewed-on: https://go-review.googlesource.com/70791 Reviewed-by: Austin Clements <austin@google.com>
2017-10-13 14:52:57 -06:00
B _rt0_arm_lib(SB)
runtime: shared library init support for android/arm. Follows http://golang.org/cl/8454, a similar CL for arm architectures. This CL involves android-specific changes, namely, synthesizing argv/auxv, as android doesn't provide those to the init functions. This code is based on crawshaw@ android code in golang.org/x/mobile. Change-Id: I32364efbb2662e80270a99bd7dfb1d0421b5417d Reviewed-on: https://go-review.googlesource.com/8457 Reviewed-by: David Crawshaw <crawshaw@golang.org>
2015-04-03 10:48:51 -06:00
DATA _rt0_arm_android_argv+0x00(SB)/4,$_rt0_arm_android_argv0(SB)
runtime: fall back to /proc/self/auxv in Android libs Android's libc doesn't provide access to auxv, so currently the Go runtime synthesizes a fake, minimal auxv when loaded as a library on Android. This used to be sufficient, but now we depend on auxv to retrieve the system physical page size and panic if we can't retrieve it. Fix this by falling back to reading auxv from /proc/self/auxv if the loader-provided auxv is empty and removing the synthetic auxv vectors. Fixes #18041. Change-Id: Ia2ec2c764a6609331494a5d359032c56cbb83482 Reviewed-on: https://go-review.googlesource.com/33652 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-11-28 16:03:16 -07:00
DATA _rt0_arm_android_argv+0x04(SB)/4,$0 // end argv
DATA _rt0_arm_android_argv+0x08(SB)/4,$0 // end envv
DATA _rt0_arm_android_argv+0x0c(SB)/4,$0 // end auxv
GLOBL _rt0_arm_android_argv(SB),NOPTR,$0x10
runtime: shared library init support for android/arm. Follows http://golang.org/cl/8454, a similar CL for arm architectures. This CL involves android-specific changes, namely, synthesizing argv/auxv, as android doesn't provide those to the init functions. This code is based on crawshaw@ android code in golang.org/x/mobile. Change-Id: I32364efbb2662e80270a99bd7dfb1d0421b5417d Reviewed-on: https://go-review.googlesource.com/8457 Reviewed-by: David Crawshaw <crawshaw@golang.org>
2015-04-03 10:48:51 -06:00
DATA _rt0_arm_android_argv0(SB)/8, $"gojni"
GLOBL _rt0_arm_android_argv0(SB),RODATA,$8
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