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-rw-r--r--libgo/syscalls/syscall_linux.go206
1 files changed, 0 insertions, 206 deletions
diff --git a/libgo/syscalls/syscall_linux.go b/libgo/syscalls/syscall_linux.go
deleted file mode 100644
index 29c8b62403e..00000000000
--- a/libgo/syscalls/syscall_linux.go
+++ /dev/null
@@ -1,206 +0,0 @@
-// syscall_linux.go -- GNU/Linux specific syscall interface.
-
-// 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 syscall
-
-import "unsafe"
-
-func libc_ptrace(request int, pid Pid_t, addr uintptr, data *byte) _C_long __asm__ ("ptrace")
-func libc_sendfile(int, int, *Offset_t, Size_t) Ssize_t __asm__ ("sendfile")
-
-var dummy *byte
-const sizeofPtr uintptr = uintptr(unsafe.Sizeof(dummy))
-
-func ptracePeek(req int, pid int, addr uintptr, out []byte) (count int, errno int) {
- // The peek requests are machine-size oriented, so we wrap it
- // to retrieve arbitrary-length data.
-
- var buf [sizeofPtr]byte;
-
- // Leading edge. PEEKTEXT/PEEKDATA don't require aligned
- // access (PEEKUSER warns that it might), but if we don't
- // align our reads, we might straddle an unmapped page
- // boundary and not get the bytes leading up to the page
- // boundary.
- n := 0;
- if addr % sizeofPtr != 0 {
- SetErrno(0);
- val := libc_ptrace(req, Pid_t(pid), addr - addr%sizeofPtr, nil);
- if errno := GetErrno(); errno != 0 {
- return 0, errno;
- }
- *(*_C_long)(unsafe.Pointer(&buf[0])) = val;
- n += copy(out, buf[addr%sizeofPtr:]);
- out = out[n:];
- }
-
- // Remainder.
- for len(out) > 0 {
- // We use an internal buffer to gaurantee alignment.
- // It's not documented if this is necessary, but we're paranoid.
- SetErrno(0);
- val := libc_ptrace(req, Pid_t(pid), addr+uintptr(n), nil);
- if errno = GetErrno(); errno != 0 {
- return n, errno;
- }
- *(*_C_long)(unsafe.Pointer(&buf[0])) = val;
- copied := copy(out, buf[0:]);
- n += copied;
- out = out[copied:];
- }
-
- return n, 0;
-}
-
-func PtracePeekText(pid int, addr uintptr, out []byte) (count int, errno int) {
- return ptracePeek(_PTRACE_PEEKTEXT, pid, addr, out);
-}
-
-func PtracePeekData(pid int, addr uintptr, out []byte) (count int, errno int) {
- return ptracePeek(_PTRACE_PEEKDATA, pid, addr, out);
-}
-
-func ptracePoke(pokeReq int, peekReq int, pid int, addr uintptr, data []byte) (count int, errno int) {
- // As for ptracePeek, we need to align our accesses to deal
- // with the possibility of straddling an invalid page.
-
- // Leading edge.
- n := 0;
- if addr % sizeofPtr != 0 {
- var buf [sizeofPtr]byte;
- if libc_ptrace(peekReq, Pid_t(pid), addr - addr%sizeofPtr, &buf[0]) < 0 {
- return 0, GetErrno();
- }
- n += copy(buf[addr%sizeofPtr:], data);
- word := (*byte)(unsafe.Pointer(*((*uintptr)(unsafe.Pointer(&buf[0])))));
- if libc_ptrace(pokeReq, Pid_t(pid), addr - addr%sizeofPtr, word) < 0 {
- return 0, GetErrno();
- }
- data = data[n:len(data)];
- }
-
- // Interior.
- for uintptr(len(data)) > sizeofPtr {
- word := (*byte)(unsafe.Pointer(*((*uintptr)(unsafe.Pointer(&data[0])))));
- if libc_ptrace(pokeReq, Pid_t(pid), addr+uintptr(n), word) < 0 {
- return n, GetErrno();
- }
- n += int(sizeofPtr);
- data = data[sizeofPtr:len(data)];
- }
-
- // Trailing edge.
- if len(data) > 0 {
- var buf [sizeofPtr]byte;
- if libc_ptrace(peekReq, Pid_t(pid), addr+uintptr(n), &buf[0]) < 0 {
- return n, GetErrno();
- }
- copy(buf[0:], data);
- word := (*byte)(unsafe.Pointer(*((*uintptr)(unsafe.Pointer(&buf[0])))));
- if libc_ptrace(pokeReq, Pid_t(pid), addr+uintptr(n), word) < 0 {
- return n, GetErrno();
- }
- n += len(data);
- }
-
- return n, 0;
-}
-
-func PtracePokeText(pid int, addr uintptr, data []byte) (count int, errno int) {
- return ptracePoke(_PTRACE_POKETEXT, _PTRACE_PEEKTEXT, pid, addr, data);
-}
-
-func PtracePokeData(pid int, addr uintptr, data []byte) (count int, errno int) {
- return ptracePoke(_PTRACE_POKEDATA, _PTRACE_PEEKDATA, pid, addr, data);
-}
-
-func PtraceGetRegs(pid int, regsout *PtraceRegs) (errno int) {
- if libc_ptrace(_PTRACE_GETREGS, Pid_t(pid), 0, (*byte)(unsafe.Pointer(regsout))) < 0 {
- return GetErrno();
- } else {
- return 0;
- }
-}
-
-func PtraceSetRegs(pid int, regs *PtraceRegs) (errno int) {
- if libc_ptrace(_PTRACE_SETREGS, Pid_t(pid), 0, (*byte)(unsafe.Pointer(regs))) < 0 {
- return GetErrno();
- } else {
- return 0;
- }
-}
-
-func PtraceSetOptions(pid int, options int) (errno int) {
- if libc_ptrace(_PTRACE_SETOPTIONS, Pid_t(pid), 0, (*byte)(unsafe.Pointer(uintptr(options)))) < 0 {
- return GetErrno();
- } else {
- return 0;
- }
-}
-
-func PtraceGetEventMsg(pid int) (msg uint, errno int) {
- var data _C_long;
- if libc_ptrace(_PTRACE_GETEVENTMSG, Pid_t(pid), 0, (*byte)(unsafe.Pointer(&data))) < 0 {
- errno = GetErrno();
- }
- msg = uint(data);
- return;
-}
-
-func PtraceCont(pid int, signal int) (errno int) {
- if libc_ptrace(_PTRACE_CONT, Pid_t(pid), 0, (*byte)(unsafe.Pointer(uintptr(signal)))) < 0 {
- return GetErrno();
- } else {
- return 0;
- }
-}
-
-func PtraceSingleStep(pid int) (errno int) {
- if libc_ptrace(_PTRACE_SINGLESTEP, Pid_t(pid), 0, nil) < 0 {
- return GetErrno();
- } else {
- return 0;
- }
-}
-
-func PtraceAttach(pid int) (errno int) {
- if libc_ptrace(_PTRACE_ATTACH, Pid_t(pid), 0, nil) < 0 {
- return GetErrno();
- } else {
- return 0;
- }
-}
-
-func PtraceDetach(pid int) (errno int) {
- if libc_ptrace(_PTRACE_DETACH, Pid_t(pid), 0, nil) < 0 {
- return GetErrno();
- } else {
- return 0;
- }
-}
-
-func Tgkill(tgid int, tid int, sig int) (errno int) {
- r1, r2, err := Syscall(SYS_TGKILL, uintptr(tgid), uintptr(tid),
- uintptr(sig));
- return int(err);
-}
-
-func Sendfile(outfd int, infd int, offset *int64, count int) (written int, errno int) {
- var o Offset_t
- var po *Offset_t
- if offset != nil {
- o = Offset_t(*offset)
- po = &o
- }
- w := libc_sendfile(outfd, infd, po, Size_t(count))
- if offset != nil {
- *offset = int64(o)
- }
- if w < 0 {
- return 0, GetErrno()
- }
- return int(w), 0
-}
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