[dev.garbage] all: merge dev.cc into dev.garbage
The garbage collector is now written in Go.
There is plenty to clean up (just like on dev.cc).
all.bash passes on darwin/amd64, darwin/386, linux/amd64, linux/386.
TBR=rlh
R=austin, rlh, bradfitz
CC=golang-codereviews
https://golang.org/cl/173250043
diff --git a/src/runtime/os_linux_386.go b/src/runtime/os_linux_386.go
new file mode 100644
index 0000000..adcd5a1
--- /dev/null
+++ b/src/runtime/os_linux_386.go
@@ -0,0 +1,36 @@
+// Copyright 2009 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.
+
+package runtime
+
+import "unsafe"
+
+const (
+ _AT_NULL = 0
+ _AT_RANDOM = 25
+ _AT_SYSINFO = 32
+)
+
+var _vdso uint32
+
+func sysargs(argc int32, argv **byte) {
+ // skip over argv, envv to get to auxv
+ n := argc + 1
+ for argv_index(argv, n) != nil {
+ n++
+ }
+ n++
+ auxv := (*[1 << 28]uint32)(add(unsafe.Pointer(argv), uintptr(n)*ptrSize))
+
+ for i := 0; auxv[i] != _AT_NULL; i += 2 {
+ switch auxv[i] {
+ case _AT_SYSINFO:
+ _vdso = auxv[i+1]
+
+ case _AT_RANDOM:
+ startup_random_data = (*byte)(unsafe.Pointer(uintptr(auxv[i+1])))
+ startup_random_data_len = 16
+ }
+ }
+}
