[dev.cc] runtime: convert Solaris port to Go

Memory management was consolitated with the BSD ports, since
it was almost identical.

Assembly thunks are gone, being replaced by the new //go:linkname
feature.

This change supersedes CL 138390043 (runtime: convert solaris
netpoll to Go), which was previously reviewed and tested.

This change is only the first step, the port now builds,
but doesn't run. Binaries fail to exec:

    ld.so.1: 6.out: fatal: 6.out: TLS requirement failure : TLS support is unavailable
    Killed

This seems to happen because binaries don't link with libc.so
anymore. We will have to solve that in a different CL.

Also this change is just a rough translation of the original
C code, cleanup will come in a different CL.

[This CL is part of the removal of C code from package runtime.
See golang.org/s/dev.cc for an overview.]

LGTM=rsc
R=rsc, dave
CC=golang-codereviews, iant, khr, minux, r, rlh
https://codereview.appspot.com/174960043

1 files changed, 47 insertions, 0 deletions

diff --git a/src/runtime/syscall2_solaris.go b/src/runtime/syscall2_solaris.go
new file mode 100644
index 000000000..f4ffa7410
--- /dev/null
+++ b/src/runtime/syscall2_solaris.go
@@ -0,0 +1,47 @@
+// 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.
+
+package runtime
+
+import _ "unsafe"
+
+//go:cgo_import_dynamic libc_chdir chdir "libc.so"
+//go:cgo_import_dynamic libc_chroot chroot "libc.so"
+//go:cgo_import_dynamic libc_close close "libc.so"
+//go:cgo_import_dynamic libc_dlclose dlclose "libc.so"
+//go:cgo_import_dynamic libc_dlopen dlopen "libc.so"
+//go:cgo_import_dynamic libc_dlsym dlsym "libc.so"
+//go:cgo_import_dynamic libc_execve execve "libc.so"
+//go:cgo_import_dynamic libc_fcntl fcntl "libc.so"
+//go:cgo_import_dynamic libc_gethostname gethostname "libc.so"
+//go:cgo_import_dynamic libc_ioctl ioctl "libc.so"
+//go:cgo_import_dynamic libc_pipe pipe "libc.so"
+//go:cgo_import_dynamic libc_setgid setgid "libc.so"
+//go:cgo_import_dynamic libc_setgroups setgroups "libc.so"
+//go:cgo_import_dynamic libc_setsid setsid "libc.so"
+//go:cgo_import_dynamic libc_setuid setuid "libc.so"
+//go:cgo_import_dynamic libc_setpgid setsid "libc.so"
+//go:cgo_import_dynamic libc_syscall syscall "libc.so"
+//go:cgo_import_dynamic libc_forkx forkx "libc.so"
+//go:cgo_import_dynamic libc_wait4 wait4 "libc.so"
+
+//go:linkname libc_chdir libc_chdir
+//go:linkname libc_chroot libc_chroot
+//go:linkname libc_close libc_close
+//go:linkname libc_dlclose libc_dlclose
+//go:linkname libc_dlopen libc_dlopen
+//go:linkname libc_dlsym libc_dlsym
+//go:linkname libc_execve libc_execve
+//go:linkname libc_fcntl libc_fcntl
+//go:linkname libc_gethostname libc_gethostname
+//go:linkname libc_ioctl libc_ioctl
+//go:linkname libc_pipe libc_pipe
+//go:linkname libc_setgid libc_setgid
+//go:linkname libc_setgroups libc_setgroups
+//go:linkname libc_setsid libc_setsid
+//go:linkname libc_setuid libc_setuid
+//go:linkname libc_setpgid libc_setpgid
+//go:linkname libc_syscall libc_syscall
+//go:linkname libc_forkx libc_forkx
+//go:linkname libc_wait4 libc_wait4