[dev.power64] syscall: the manually written parts for linux/power64 and linux/power64le

LGTM=rsc
R=rsc, iant
CC=golang-codereviews
https://golang.org/cl/129800043

diff --git a/src/pkg/syscall/asm_linux_power64x.s b/src/pkg/syscall/asm_linux_power64x.s
new file mode 100644 (file)
index 0000000..1dd23ef
--- /dev/null
+++ b/src/pkg/syscall/asm_linux_power64x.s
@@ -0,0 +1,108 @@
+// 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.
+
+// +build linux
+// +build power64 power64le
+
+#include "../../cmd/ld/textflag.h"
+
+//
+// System calls for Power64, Linux
+//
+
+// func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64);
+
+TEXT   ·Syscall(SB),NOSPLIT,$0-56
+       BL      runtime·entersyscall(SB)
+       MOVD    a1+8(FP), R3
+       MOVD    a2+16(FP), R4
+       MOVD    a3+24(FP), R5
+       MOVD    R0, R6
+       MOVD    R0, R7
+       MOVD    R0, R8
+       MOVD    trap+0(FP), R9  // syscall entry
+       SYSCALL R9
+       BVC     ok
+       NEG     R3, R3
+       MOVD    $-1, R4
+       MOVD    R4, r1+32(FP)   // r1
+       MOVD    R0, r2+40(FP)   // r2
+       MOVD    R3, err+48(FP)  // errno
+       BL      runtime·exitsyscall(SB)
+       RETURN
+ok:
+       MOVD    R3, r1+32(FP)   // r1
+       MOVD    R4, r2+40(FP)   // r2
+       MOVD    R0, err+48(FP)  // errno
+       BL      runtime·exitsyscall(SB)
+       RETURN
+
+TEXT ·Syscall6(SB),NOSPLIT,$0-80
+       BL      runtime·entersyscall(SB)
+       MOVD    a1+8(FP), R3
+       MOVD    a2+16(FP), R4
+       MOVD    a3+24(FP), R5
+       MOVD    a4+32(FP), R6
+       MOVD    a5+40(FP), R7
+       MOVD    a6+48(FP), R8
+       MOVD    trap+0(FP), R9  // syscall entry
+       SYSCALL R9
+       BVC     ok6
+       NEG     R3, R3
+       MOVD    $-1, R4
+       MOVD    R4, r1+56(FP)   // r1
+       MOVD    R0, r2+64(FP)   // r2
+       MOVD    R3, err+72(FP)  // errno
+       BL      runtime·exitsyscall(SB)
+       RETURN
+ok6:
+       MOVD    R3, r1+56(FP)   // r1
+       MOVD    R4, r2+64(FP)   // r2
+       MOVD    R0, err+72(FP)  // errno
+       BL      runtime·exitsyscall(SB)
+       RETURN
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
+       MOVD    a1+8(FP), R3
+       MOVD    a2+16(FP), R4
+       MOVD    a3+24(FP), R5
+       MOVD    R0, R6
+       MOVD    R0, R7
+       MOVD    R0, R8
+       MOVD    trap+0(FP), R9  // syscall entry
+       SYSCALL R9
+       BVC     ok1
+       NEG     R3, R3
+       MOVD    $-1, R4
+       MOVD    R4, r1+32(FP)   // r1
+       MOVD    R0, r2+40(FP)   // r2
+       MOVD    R3, err+48(FP)  // errno
+       RETURN
+ok1:
+       MOVD    R3, r1+32(FP)   // r1
+       MOVD    R4, r2+40(FP)   // r2
+       MOVD    R0, err+48(FP)  // errno
+       RETURN
+
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
+       MOVD    a1+8(FP), R3
+       MOVD    a2+16(FP), R4
+       MOVD    a3+24(FP), R5
+       MOVD    a4+32(FP), R6
+       MOVD    a5+40(FP), R7
+       MOVD    a6+48(FP), R8
+       MOVD    trap+0(FP), R9  // syscall entry
+       SYSCALL R9
+       BVC     ok2
+       NEG     R3, R3
+       MOVD    $-1, R4
+       MOVD    R4, r1+56(FP)   // r1
+       MOVD    R0, r2+64(FP)   // r2
+       MOVD    R3, err+72(FP)  // errno
+       RETURN
+ok2:
+       MOVD    R3, r1+56(FP)   // r1
+       MOVD    R4, r2+64(FP)   // r2
+       MOVD    R0, err+72(FP)  // errno
+       RETURN

diff --git a/src/pkg/syscall/syscall_linux_power64x.go b/src/pkg/syscall/syscall_linux_power64x.go
new file mode 100644 (file)
index 0000000..dbe37c4
--- /dev/null
+++ b/src/pkg/syscall/syscall_linux_power64x.go
@@ -0,0 +1,97 @@
+// 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.
+
+// +build linux
+// +build power64 power64le
+
+package syscall
+
+//sys  Chown(path string, uid int, gid int) (err error)
+//sys  Fchown(fd int, uid int, gid int) (err error)
+//sys  Fstat(fd int, stat *Stat_t) (err error)
+//sys  Fstatfs(fd int, buf *Statfs_t) (err error)
+//sys  Ftruncate(fd int, length int64) (err error)
+//sysnb        Getegid() (egid int)
+//sysnb        Geteuid() (euid int)
+//sysnb        Getgid() (gid int)
+//sysnb        Getrlimit(resource int, rlim *Rlimit) (err error)
+//sysnb        Getuid() (uid int)
+//sys  Ioperm(from int, num int, on int) (err error)
+//sys  Iopl(level int) (err error)
+//sys  Lchown(path string, uid int, gid int) (err error)
+//sys  Listen(s int, n int) (err error)
+//sys  Lstat(path string, stat *Stat_t) (err error)
+//sys  Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
+//sys  Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
+//sys  Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
+//sys  Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)
+//sys  sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)
+//sys  Setfsgid(gid int) (err error)
+//sys  Setfsuid(uid int) (err error)
+//sysnb        Setregid(rgid int, egid int) (err error)
+//sysnb        Setresgid(rgid int, egid int, sgid int) (err error)
+//sysnb        Setresuid(ruid int, euid int, suid int) (err error)
+//sysnb        Setrlimit(resource int, rlim *Rlimit) (err error)
+//sysnb        Setreuid(ruid int, euid int) (err error)
+//sys  Shutdown(fd int, how int) (err error)
+//sys  Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error)
+//sys  Stat(path string, stat *Stat_t) (err error)
+//sys  Statfs(path string, buf *Statfs_t) (err error)
+//sys  SyncFileRange(fd int, off int64, n int64, flags int) (err error) = SYS_SYNC_FILE_RANGE2
+//sys  Truncate(path string, length int64) (err error)
+//sys  accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error)
+//sys  accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
+//sys  bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
+//sys  connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
+//sysnb        getgroups(n int, list *_Gid_t) (nn int, err error)
+//sysnb        setgroups(n int, list *_Gid_t) (err error)
+//sys  getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
+//sys  setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
+//sysnb        socket(domain int, typ int, proto int) (fd int, err error)
+//sysnb        socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
+//sysnb        getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
+//sysnb        getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
+//sys  recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
+//sys  sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
+//sys  recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
+//sys  sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
+//sys  mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
+
+func Getpagesize() int { return 4096 }
+
+//sysnb        Gettimeofday(tv *Timeval) (err error)
+//sysnb        Time(t *Time_t) (tt Time_t, err error)
+
+func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
+
+func NsecToTimespec(nsec int64) (ts Timespec) {
+       ts.Sec = nsec / 1e9
+       ts.Nsec = nsec % 1e9
+       return
+}
+
+func TimevalToNsec(tv Timeval) int64 { return int64(tv.Sec)*1e9 + int64(tv.Usec)*1e3 }
+
+func NsecToTimeval(nsec int64) (tv Timeval) {
+       nsec += 999 // round up to microsecond
+       tv.Sec = nsec / 1e9
+       tv.Usec = nsec % 1e9 / 1e3
+       return
+}
+
+func (r *PtraceRegs) PC() uint64 { return r.Nip }
+
+func (r *PtraceRegs) SetPC(pc uint64) { r.Nip = pc }
+
+func (iov *Iovec) SetLen(length int) {
+       iov.Len = uint64(length)
+}
+
+func (msghdr *Msghdr) SetControllen(length int) {
+       msghdr.Controllen = uint64(length)
+}
+
+func (cmsg *Cmsghdr) SetLen(length int) {
+       cmsg.Len = uint64(length)
+}