cmd/cgo: configure cgo tool for loong64

Define pointer and int type size for loong64
Add "-mabi=lp64d" argument to gcc

Contributors to the loong64 port are:
  Weining Lu <luweining@loongson.cn>
  Lei Wang <wanglei@loongson.cn>
  Lingqin Gong <gonglingqin@loongson.cn>
  Xiaolin Zhao <zhaoxiaolin@loongson.cn>
  Meidan Li <limeidan@loongson.cn>
  Xiaojuan Zhai <zhaixiaojuan@loongson.cn>
  Qiyuan Pu <puqiyuan@loongson.cn>
  Guoqi Chen <chenguoqi@loongson.cn>

This port has been updated to Go 1.15.6:
  https://github.com/loongson/go

Updates #46229

Change-Id: I9699fd9af0112e72193ac24b736b85c580887a0f
Reviewed-on: https://go-review.googlesource.com/c/go/+/342305
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>

diff --git a/src/cmd/cgo/gcc.go b/src/cmd/cgo/gcc.go
index a52163fd6567db4693fd8dd33ff3b456132698be..a469afa8dd1476f9271bac0a1c5a237d8d3c8165 100644 (file)
--- a/src/cmd/cgo/gcc.go
+++ b/src/cmd/cgo/gcc.go
@@ -1622,6 +1622,8 @@ func (p *Package) gccMachine() []string {
                } else if gomips == "softfloat" {
                        return []string{"-mabi=32", "-msoft-float"}
                }
+       case "loong64":
+               return []string{"-mabi=lp64d"}
        }
        return nil
 }

diff --git a/src/cmd/cgo/main.go b/src/cmd/cgo/main.go
index 364d8b81fbb3c9cac2491a6edc22c31a32b60668..21d895be26ac3969a248cb39de76cbaae6dd9efe 100644 (file)
--- a/src/cmd/cgo/main.go
+++ b/src/cmd/cgo/main.go
@@ -175,6 +175,7 @@ var ptrSizeMap = map[string]int64{
        "amd64":    8,
        "arm":      4,
        "arm64":    8,
+       "loong64":  8,
        "m68k":     4,
        "mips":     4,
        "mipsle":   4,
@@ -200,6 +201,7 @@ var intSizeMap = map[string]int64{
        "amd64":    8,
        "arm":      4,
        "arm64":    8,
+       "loong64":  8,
        "m68k":     4,
        "mips":     4,
        "mipsle":   4,