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authorCherry Zhang <cherryyz@google.com>2020-09-16 16:59:58 -0400
committerCherry Zhang <cherryyz@google.com>2020-09-23 18:12:59 +0000
commita413908dd064de6e3ea5b8d95d707a532bd3f4c8 (patch)
treeca1bb03a29fff2bb902aa015fe04fcd36988394d /src/runtime/malloc.go
parentbc320fc1f5bc5d6019e3d8d62aa32eac3417bb7f (diff)
downloadgo-git-a413908dd064de6e3ea5b8d95d707a532bd3f4c8.tar.gz
all: add GOOS=ios
Introduce GOOS=ios for iOS systems. GOOS=ios matches "darwin" build tag, like GOOS=android matches "linux" and GOOS=illumos matches "solaris". Only ios/arm64 is supported (ios/amd64 is not). GOOS=ios and GOOS=darwin remain essentially the same at this point. They will diverge at later time, to differentiate macOS and iOS. Uses of GOOS=="darwin" are changed to (GOOS=="darwin" || GOOS=="ios"), except if it clearly means macOS (e.g. GOOS=="darwin" && GOARCH=="amd64"), it remains GOOS=="darwin". Updates #38485. Change-Id: I4faacdc1008f42434599efb3c3ad90763a83b67c Reviewed-on: https://go-review.googlesource.com/c/go/+/254740 Trust: Cherry Zhang <cherryyz@google.com> Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Austin Clements <austin@google.com>
Diffstat (limited to 'src/runtime/malloc.go')
-rw-r--r--src/runtime/malloc.go4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/runtime/malloc.go b/src/runtime/malloc.go
index e46327f9ce..4fa14996c2 100644
--- a/src/runtime/malloc.go
+++ b/src/runtime/malloc.go
@@ -207,7 +207,7 @@ const (
// arenaBaseOffset to offset into the top 4 GiB.
//
// WebAssembly currently has a limit of 4GB linear memory.
- heapAddrBits = (_64bit*(1-sys.GoarchWasm)*(1-sys.GoosDarwin*sys.GoarchArm64))*48 + (1-_64bit+sys.GoarchWasm)*(32-(sys.GoarchMips+sys.GoarchMipsle)) + 33*sys.GoosDarwin*sys.GoarchArm64
+ heapAddrBits = (_64bit*(1-sys.GoarchWasm)*(1-(sys.GoosDarwin+sys.GoosIos)*sys.GoarchArm64))*48 + (1-_64bit+sys.GoarchWasm)*(32-(sys.GoarchMips+sys.GoarchMipsle)) + 33*(sys.GoosDarwin+sys.GoosIos)*sys.GoarchArm64
// maxAlloc is the maximum size of an allocation. On 64-bit,
// it's theoretically possible to allocate 1<<heapAddrBits bytes. On
@@ -521,7 +521,7 @@ func mallocinit() {
for i := 0x7f; i >= 0; i-- {
var p uintptr
switch {
- case GOARCH == "arm64" && GOOS == "darwin":
+ case GOARCH == "arm64" && (GOOS == "darwin" || GOOS == "ios"):
p = uintptr(i)<<40 | uintptrMask&(0x0013<<28)
case GOARCH == "arm64":
p = uintptr(i)<<40 | uintptrMask&(0x0040<<32)