syscall: added support for linux/mips64{,le}
Syscall getdents64 is relatively new in linux/mips64, only since kernel
version 3.10. To support older kernel, syscall getdents is used for
mips64.
Change-Id: I892b05dff7d93e7ddb0d700abd6a5e6d4084ab4c
Reviewed-on: https://go-review.googlesource.com/14449
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Minux Ma <minux@golang.org>
diff --git a/src/syscall/asm_linux_mips64x.s b/src/syscall/asm_linux_mips64x.s
new file mode 100644
index 0000000..81717d2
--- /dev/null
+++ b/src/syscall/asm_linux_mips64x.s
@@ -0,0 +1,104 @@
+// 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 mips64 mips64le
+
+#include "textflag.h"
+
+//
+// System calls for mips64, Linux
+//
+
+// func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64);
+
+TEXT ·Syscall(SB),NOSPLIT,$0-56
+ JAL runtime·entersyscall(SB)
+ MOVV a1+8(FP), R4
+ MOVV a2+16(FP), R5
+ MOVV a3+24(FP), R6
+ MOVV R0, R7
+ MOVV R0, R8
+ MOVV R0, R9
+ MOVV trap+0(FP), R2 // syscall entry
+ SYSCALL
+ BEQ R7, ok
+ MOVV $-1, R1
+ MOVV R1, r1+32(FP) // r1
+ MOVV R0, r2+40(FP) // r2
+ MOVV R2, err+48(FP) // errno
+ JAL runtime·exitsyscall(SB)
+ RET
+ok:
+ MOVV R2, r1+32(FP) // r1
+ MOVV R3, r2+40(FP) // r2
+ MOVV R0, err+48(FP) // errno
+ JAL runtime·exitsyscall(SB)
+ RET
+
+TEXT ·Syscall6(SB),NOSPLIT,$0-80
+ JAL runtime·entersyscall(SB)
+ MOVV a1+8(FP), R4
+ MOVV a2+16(FP), R5
+ MOVV a3+24(FP), R6
+ MOVV a4+32(FP), R7
+ MOVV a5+40(FP), R8
+ MOVV a6+48(FP), R9
+ MOVV trap+0(FP), R2 // syscall entry
+ SYSCALL
+ BEQ R7, ok6
+ MOVV $-1, R1
+ MOVV R1, r1+56(FP) // r1
+ MOVV R0, r2+64(FP) // r2
+ MOVV R2, err+72(FP) // errno
+ JAL runtime·exitsyscall(SB)
+ RET
+ok6:
+ MOVV R2, r1+56(FP) // r1
+ MOVV R3, r2+64(FP) // r2
+ MOVV R0, err+72(FP) // errno
+ JAL runtime·exitsyscall(SB)
+ RET
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
+ MOVV a1+8(FP), R4
+ MOVV a2+16(FP), R5
+ MOVV a3+24(FP), R6
+ MOVV R0, R7
+ MOVV R0, R8
+ MOVV R0, R9
+ MOVV trap+0(FP), R2 // syscall entry
+ SYSCALL
+ BEQ R7, ok1
+ MOVV $-1, R1
+ MOVV R1, r1+32(FP) // r1
+ MOVV R0, r2+40(FP) // r2
+ MOVV R2, err+48(FP) // errno
+ RET
+ok1:
+ MOVV R2, r1+32(FP) // r1
+ MOVV R3, r2+40(FP) // r2
+ MOVV R0, err+48(FP) // errno
+ RET
+
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
+ MOVV a1+8(FP), R4
+ MOVV a2+16(FP), R5
+ MOVV a3+24(FP), R6
+ MOVV a4+32(FP), R7
+ MOVV a5+40(FP), R8
+ MOVV a6+48(FP), R9
+ MOVV trap+0(FP), R2 // syscall entry
+ SYSCALL
+ BEQ R7, ok2
+ MOVV $-1, R1
+ MOVV R1, r1+56(FP) // r1
+ MOVV R0, r2+64(FP) // r2
+ MOVV R2, err+72(FP) // errno
+ RET
+ok2:
+ MOVV R2, r1+56(FP) // r1
+ MOVV R3, r2+64(FP) // r2
+ MOVV R0, err+72(FP) // errno
+ RET
diff --git a/src/syscall/syscall_linux.go b/src/syscall/syscall_linux.go
index 5ce00a1..2875067 100644
--- a/src/syscall/syscall_linux.go
+++ b/src/syscall/syscall_linux.go
@@ -837,7 +837,7 @@
//sys Fdatasync(fd int) (err error)
//sys Flock(fd int, how int) (err error)
//sys Fsync(fd int) (err error)
-//sys Getdents(fd int, buf []byte) (n int, err error) = SYS_GETDENTS64
+//sys Getdents(fd int, buf []byte) (n int, err error) = _SYS_getdents
//sysnb Getpgid(pid int) (pgid int, err error)
func Getpgrp() (pid int) {
diff --git a/src/syscall/syscall_linux_386.go b/src/syscall/syscall_linux_386.go
index 9ee1c1c..0e637b4 100644
--- a/src/syscall/syscall_linux_386.go
+++ b/src/syscall/syscall_linux_386.go
@@ -9,7 +9,10 @@
import "unsafe"
-const _SYS_dup = SYS_DUP2
+const (
+ _SYS_dup = SYS_DUP2
+ _SYS_getdents = SYS_GETDENTS64
+)
func Getpagesize() int { return 4096 }
diff --git a/src/syscall/syscall_linux_amd64.go b/src/syscall/syscall_linux_amd64.go
index 6fbef21..d1bda29 100644
--- a/src/syscall/syscall_linux_amd64.go
+++ b/src/syscall/syscall_linux_amd64.go
@@ -4,7 +4,10 @@
package syscall
-const _SYS_dup = SYS_DUP2
+const (
+ _SYS_dup = SYS_DUP2
+ _SYS_getdents = SYS_GETDENTS64
+)
//sys Dup2(oldfd int, newfd int) (err error)
//sys Fchown(fd int, uid int, gid int) (err error)
diff --git a/src/syscall/syscall_linux_arm.go b/src/syscall/syscall_linux_arm.go
index 218d6b8..7c78254 100644
--- a/src/syscall/syscall_linux_arm.go
+++ b/src/syscall/syscall_linux_arm.go
@@ -6,7 +6,10 @@
import "unsafe"
-const _SYS_dup = SYS_DUP2
+const (
+ _SYS_dup = SYS_DUP2
+ _SYS_getdents = SYS_GETDENTS64
+)
func Getpagesize() int { return 4096 }
diff --git a/src/syscall/syscall_linux_arm64.go b/src/syscall/syscall_linux_arm64.go
index 3d55181..5f1478c 100644
--- a/src/syscall/syscall_linux_arm64.go
+++ b/src/syscall/syscall_linux_arm64.go
@@ -4,7 +4,10 @@
package syscall
-const _SYS_dup = SYS_DUP3
+const (
+ _SYS_dup = SYS_DUP3
+ _SYS_getdents = SYS_GETDENTS64
+)
//sys Fchown(fd int, uid int, gid int) (err error)
//sys Fstat(fd int, stat *Stat_t) (err error)
diff --git a/src/syscall/syscall_linux_mips64x.go b/src/syscall/syscall_linux_mips64x.go
new file mode 100644
index 0000000..a14485a
--- /dev/null
+++ b/src/syscall/syscall_linux_mips64x.go
@@ -0,0 +1,210 @@
+// 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 mips64 mips64le
+
+package syscall
+
+const (
+ _SYS_dup = SYS_DUP2
+
+ // Linux introduced getdents64 syscall for N64 ABI only in 3.10
+ // (May 21 2013, rev dec33abaafc89bcbd78f85fad0513170415a26d5),
+ // to support older kernels, we have to use getdents for mips64.
+ // Also note that struct dirent is different for these two.
+ // Lookup linux_dirent{,64} in kernel source code for details.
+ _SYS_getdents = SYS_GETDENTS
+)
+
+//sys Dup2(oldfd int, newfd int) (err error)
+//sys Fchown(fd int, uid int, gid int) (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)
+//sysnb InotifyInit() (fd int, err error)
+//sys Lchown(path string, uid int, gid int) (err error)
+//sys Listen(s int, n int) (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_PSELECT6
+//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 Statfs(path string, buf *Statfs_t) (err error)
+//sys SyncFileRange(fd int, off int64, n int64, flags int) (err error)
+//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 65536 }
+
+//sysnb Gettimeofday(tv *Timeval) (err error)
+
+func Time(t *Time_t) (tt Time_t, err error) {
+ var tv Timeval
+ err = Gettimeofday(&tv)
+ if err != nil {
+ return 0, err
+ }
+ if t != nil {
+ *t = Time_t(tv.Sec)
+ }
+ return Time_t(tv.Sec), nil
+}
+
+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 Pipe(p []int) (err error) {
+ if len(p) != 2 {
+ return EINVAL
+ }
+ var pp [2]_C_int
+ err = pipe2(&pp, 0)
+ p[0] = int(pp[0])
+ p[1] = int(pp[1])
+ return
+}
+
+//sysnb pipe2(p *[2]_C_int, flags int) (err error)
+
+func Pipe2(p []int, flags int) (err error) {
+ if len(p) != 2 {
+ return EINVAL
+ }
+ var pp [2]_C_int
+ err = pipe2(&pp, flags)
+ p[0] = int(pp[0])
+ p[1] = int(pp[1])
+ return
+}
+
+func Ioperm(from int, num int, on int) (err error) {
+ return ENOSYS
+}
+
+func Iopl(level int) (err error) {
+ return ENOSYS
+}
+
+type stat_t struct {
+ Dev uint32
+ Pad0 [3]int32
+ Ino uint64
+ Mode uint32
+ Nlink uint32
+ Uid uint32
+ Gid uint32
+ Rdev uint32
+ Pad1 [3]uint32
+ Size int64
+ Atime uint32
+ Atime_nsec uint32
+ Mtime uint32
+ Mtime_nsec uint32
+ Ctime uint32
+ Ctime_nsec uint32
+ Blksize uint32
+ Pad2 uint32
+ Blocks int64
+}
+
+//sys fstat(fd int, st *stat_t) (err error)
+//sys lstat(path string, st *stat_t) (err error)
+//sys stat(path string, st *stat_t) (err error)
+
+func Fstat(fd int, s *Stat_t) (err error) {
+ st := &stat_t{}
+ err = fstat(fd, st)
+ fillStat_t(s, st)
+ return
+}
+
+func Lstat(path string, s *Stat_t) (err error) {
+ st := &stat_t{}
+ err = lstat(path, st)
+ fillStat_t(s, st)
+ return
+}
+
+func Stat(path string, s *Stat_t) (err error) {
+ st := &stat_t{}
+ err = stat(path, st)
+ fillStat_t(s, st)
+ return
+}
+
+func fillStat_t(s *Stat_t, st *stat_t) {
+ s.Dev = st.Dev
+ s.Ino = st.Ino
+ s.Mode = st.Mode
+ s.Nlink = st.Nlink
+ s.Uid = st.Uid
+ s.Gid = st.Gid
+ s.Rdev = st.Rdev
+ s.Size = st.Size
+ s.Atim = Timespec{int64(st.Atime), int64(st.Atime_nsec)}
+ s.Mtim = Timespec{int64(st.Mtime), int64(st.Mtime_nsec)}
+ s.Ctim = Timespec{int64(st.Ctime), int64(st.Ctime_nsec)}
+ s.Blksize = st.Blksize
+ s.Blocks = st.Blocks
+}
+
+func (r *PtraceRegs) PC() uint64 { return r.Regs[64] }
+
+func (r *PtraceRegs) SetPC(pc uint64) { r.Regs[64] = 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)
+}
diff --git a/src/syscall/syscall_linux_ppc64x.go b/src/syscall/syscall_linux_ppc64x.go
index 10489d9..9f1c07e 100644
--- a/src/syscall/syscall_linux_ppc64x.go
+++ b/src/syscall/syscall_linux_ppc64x.go
@@ -7,7 +7,10 @@
package syscall
-const _SYS_dup = SYS_DUP2
+const (
+ _SYS_dup = SYS_DUP2
+ _SYS_getdents = SYS_GETDENTS64
+)
//sys Dup2(oldfd int, newfd int) (err error)
//sys Fchown(fd int, uid int, gid int) (err error)
diff --git a/src/syscall/types_linux.go b/src/syscall/types_linux.go
index 0ebdc7c..cff4069 100644
--- a/src/syscall/types_linux.go
+++ b/src/syscall/types_linux.go
@@ -91,6 +91,8 @@
typedef struct user_pt_regs PtraceRegs;
#elif defined(__powerpc64__)
typedef struct pt_regs PtraceRegs;
+#elif defined(__mips__)
+typedef struct user PtraceRegs;
#else
typedef struct user_regs_struct PtraceRegs;
#endif
diff --git a/src/syscall/zsyscall_linux_386.go b/src/syscall/zsyscall_linux_386.go
index 620fba2..82834fd 100644
--- a/src/syscall/zsyscall_linux_386.go
+++ b/src/syscall/zsyscall_linux_386.go
@@ -505,7 +505,7 @@
} else {
_p0 = unsafe.Pointer(&_zero)
}
- r0, _, e1 := Syscall(SYS_GETDENTS64, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
+ r0, _, e1 := Syscall(_SYS_getdents, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)
diff --git a/src/syscall/zsyscall_linux_amd64.go b/src/syscall/zsyscall_linux_amd64.go
index 16cafbf..e7f754e 100644
--- a/src/syscall/zsyscall_linux_amd64.go
+++ b/src/syscall/zsyscall_linux_amd64.go
@@ -505,7 +505,7 @@
} else {
_p0 = unsafe.Pointer(&_zero)
}
- r0, _, e1 := Syscall(SYS_GETDENTS64, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
+ r0, _, e1 := Syscall(_SYS_getdents, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)
diff --git a/src/syscall/zsyscall_linux_arm.go b/src/syscall/zsyscall_linux_arm.go
index 9bc3a54..aed89cd 100644
--- a/src/syscall/zsyscall_linux_arm.go
+++ b/src/syscall/zsyscall_linux_arm.go
@@ -505,7 +505,7 @@
} else {
_p0 = unsafe.Pointer(&_zero)
}
- r0, _, e1 := Syscall(SYS_GETDENTS64, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
+ r0, _, e1 := Syscall(_SYS_getdents, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)
diff --git a/src/syscall/zsyscall_linux_arm64.go b/src/syscall/zsyscall_linux_arm64.go
index 041e770..69df407 100644
--- a/src/syscall/zsyscall_linux_arm64.go
+++ b/src/syscall/zsyscall_linux_arm64.go
@@ -505,7 +505,7 @@
} else {
_p0 = unsafe.Pointer(&_zero)
}
- r0, _, e1 := Syscall(SYS_GETDENTS64, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
+ r0, _, e1 := Syscall(_SYS_getdents, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)
diff --git a/src/syscall/zsyscall_linux_ppc64.go b/src/syscall/zsyscall_linux_ppc64.go
index 4f61114..352525f 100644
--- a/src/syscall/zsyscall_linux_ppc64.go
+++ b/src/syscall/zsyscall_linux_ppc64.go
@@ -505,7 +505,7 @@
} else {
_p0 = unsafe.Pointer(&_zero)
}
- r0, _, e1 := Syscall(SYS_GETDENTS64, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
+ r0, _, e1 := Syscall(_SYS_getdents, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)
diff --git a/src/syscall/zsyscall_linux_ppc64le.go b/src/syscall/zsyscall_linux_ppc64le.go
index 4073a0f..ac49c5c 100644
--- a/src/syscall/zsyscall_linux_ppc64le.go
+++ b/src/syscall/zsyscall_linux_ppc64le.go
@@ -505,7 +505,7 @@
} else {
_p0 = unsafe.Pointer(&_zero)
}
- r0, _, e1 := Syscall(SYS_GETDENTS64, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
+ r0, _, e1 := Syscall(_SYS_getdents, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)
