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let the compiler deduce types in syscalls (#145)

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This commit is contained in:
Mackenzie Clark
2019-02-06 17:06:05 -08:00
committed by GitHub
parent f13a45a5bc
commit 0a7b9b26b8
1 changed files with 27 additions and 27 deletions
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54
lib/emscripten/src/syscalls.rs
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@ -110,7 +110,7 @@ pub fn ___syscall3(which: i32, mut varargs: VarArgs, ctx: &mut Ctx) -> i32 {
debug!("emscripten::___syscall3 (read) {}", which);
let fd: i32 = varargs.get(ctx);
let buf: u32 = varargs.get(ctx);
let count: usize = varargs.get(ctx);
let count = varargs.get(ctx);
debug!("=> fd: {}, buf_offset: {}, count: {}", fd, buf, count);
let buf_addr = emscripten_memory_pointer!(ctx.memory(0), buf) as *mut c_void;
let ret = unsafe { read(fd, buf_addr, count) };
@ -123,10 +123,10 @@ pub fn ___syscall4(which: c_int, mut varargs: VarArgs, ctx: &mut Ctx) -> c_int {
debug!("emscripten::___syscall4 (write) {}", which);
let fd: i32 = varargs.get(ctx);
let buf: u32 = varargs.get(ctx);
let count: u32 = varargs.get(ctx);
let count = varargs.get(ctx);
debug!("=> fd: {}, buf: {}, count: {}", fd, buf, count);
let buf_addr = emscripten_memory_pointer!(ctx.memory(0), buf) as *const c_void;
unsafe { write(fd, buf_addr, count as usize) as i32 }
unsafe { write(fd, buf_addr, count) as i32 }
}
/// open
@ -342,7 +342,7 @@ pub fn ___syscall102(which: c_int, mut varargs: VarArgs, ctx: &mut Ctx) -> c_int
};
type T = u32;
let payload = 1 as *const T as *const c_void;
let payload = 1 as *const T as _;
unsafe {
setsockopt(
fd,
@ -363,9 +363,9 @@ pub fn ___syscall102(which: c_int, mut varargs: VarArgs, ctx: &mut Ctx) -> c_int
debug!("socket: bind");
// bind (socket: c_int, address: *const sockaddr, address_len: socklen_t) -> c_int
// TODO: Emscripten has a different signature.
let socket: i32 = socket_varargs.get(ctx);
let socket = socket_varargs.get(ctx);
let address: u32 = socket_varargs.get(ctx);
let address_len: u32 = socket_varargs.get(ctx);
let address_len = socket_varargs.get(ctx);
let address = emscripten_memory_pointer!(ctx.memory(0), address) as *mut sockaddr;
// Debug received address
@ -390,16 +390,16 @@ pub fn ___syscall102(which: c_int, mut varargs: VarArgs, ctx: &mut Ctx) -> c_int
debug!("socket: connect");
// connect (socket: c_int, address: *const sockaddr, len: socklen_t) -> c_int
// TODO: Emscripten has a different signature.
let socket: i32 = socket_varargs.get(ctx);
let socket = socket_varargs.get(ctx);
let address: u32 = socket_varargs.get(ctx);
let address_len: u32 = socket_varargs.get(ctx);
let address_len = socket_varargs.get(ctx);
let address = emscripten_memory_pointer!(ctx.memory(0), address) as *mut sockaddr;
unsafe { connect(socket, address, address_len) }
}
4 => {
debug!("socket: listen");
// listen (socket: c_int, backlog: c_int) -> c_int
let socket: i32 = socket_varargs.get(ctx);
let socket = socket_varargs.get(ctx);
let backlog: i32 = socket_varargs.get(ctx);
let status = unsafe { listen(socket, backlog) };
debug!(
@ -411,7 +411,7 @@ pub fn ___syscall102(which: c_int, mut varargs: VarArgs, ctx: &mut Ctx) -> c_int
5 => {
debug!("socket: accept");
// accept (socket: c_int, address: *mut sockaddr, address_len: *mut socklen_t) -> c_int
let socket: i32 = socket_varargs.get(ctx);
let socket = socket_varargs.get(ctx);
let address_addr: u32 = socket_varargs.get(ctx);
let address_len: u32 = socket_varargs.get(ctx);
let address = emscripten_memory_pointer!(ctx.memory(0), address_addr) as *mut sockaddr;
@ -445,7 +445,7 @@ pub fn ___syscall102(which: c_int, mut varargs: VarArgs, ctx: &mut Ctx) -> c_int
6 => {
debug!("socket: getsockname");
// getsockname (socket: c_int, address: *mut sockaddr, address_len: *mut socklen_t) -> c_int
let socket: i32 = socket_varargs.get(ctx);
let socket = socket_varargs.get(ctx);
let address: u32 = socket_varargs.get(ctx);
let address_len: u32 = socket_varargs.get(ctx);
let address = emscripten_memory_pointer!(ctx.memory(0), address) as *mut sockaddr;
@ -456,7 +456,7 @@ pub fn ___syscall102(which: c_int, mut varargs: VarArgs, ctx: &mut Ctx) -> c_int
7 => {
debug!("socket: getpeername");
// getpeername (socket: c_int, address: *mut sockaddr, address_len: *mut socklen_t) -> c_int
let socket: i32 = socket_varargs.get(ctx);
let socket = socket_varargs.get(ctx);
let address: u32 = socket_varargs.get(ctx);
let address_len: u32 = socket_varargs.get(ctx);
let address = emscripten_memory_pointer!(ctx.memory(0), address) as *mut sockaddr;
@ -467,26 +467,26 @@ pub fn ___syscall102(which: c_int, mut varargs: VarArgs, ctx: &mut Ctx) -> c_int
11 => {
debug!("socket: sendto");
// sendto (socket: c_int, buf: *const c_void, len: size_t, flags: c_int, addr: *const sockaddr, addrlen: socklen_t) -> ssize_t
let socket: i32 = socket_varargs.get(ctx);
let socket = socket_varargs.get(ctx);
let buf: u32 = socket_varargs.get(ctx);
let flags: usize = socket_varargs.get(ctx);
let flags = socket_varargs.get(ctx);
let len: i32 = socket_varargs.get(ctx);
let address: u32 = socket_varargs.get(ctx);
let address_len: u32 = socket_varargs.get(ctx);
let buf_addr = emscripten_memory_pointer!(ctx.memory(0), buf) as *mut c_void;
let address_len = socket_varargs.get(ctx);
let buf_addr = emscripten_memory_pointer!(ctx.memory(0), buf) as _;
let address = emscripten_memory_pointer!(ctx.memory(0), address) as *mut sockaddr;
unsafe { sendto(socket, buf_addr, flags, len, address, address_len) as i32 }
}
12 => {
debug!("socket: recvfrom");
// recvfrom (socket: c_int, buf: *const c_void, len: size_t, flags: c_int, addr: *const sockaddr, addrlen: socklen_t) -> ssize_t
let socket: i32 = socket_varargs.get(ctx);
let socket = socket_varargs.get(ctx);
let buf: u32 = socket_varargs.get(ctx);
let flags: usize = socket_varargs.get(ctx);
let flags = socket_varargs.get(ctx);
let len: i32 = socket_varargs.get(ctx);
let address: u32 = socket_varargs.get(ctx);
let address_len: u32 = socket_varargs.get(ctx);
let buf_addr = emscripten_memory_pointer!(ctx.memory(0), buf) as *mut c_void;
let buf_addr = emscripten_memory_pointer!(ctx.memory(0), buf) as _;
let address = emscripten_memory_pointer!(ctx.memory(0), address) as *mut sockaddr;
let address_len_addr =
emscripten_memory_pointer!(ctx.memory(0), address_len) as *mut socklen_t;
@ -500,7 +500,7 @@ pub fn ___syscall102(which: c_int, mut varargs: VarArgs, ctx: &mut Ctx) -> c_int
// https://github.com/openbsd/src/blob/master/sys/sys/socket.h#L156
// setsockopt (socket: c_int, level: c_int, name: c_int, value: *const c_void, option_len: socklen_t) -> c_int
let socket: i32 = socket_varargs.get(ctx);
let socket = socket_varargs.get(ctx);
// SOL_SOCKET = 0xffff (BSD, Linux)
let level: i32 = SOL_SOCKET;
let _: u32 = socket_varargs.get(ctx);
@ -508,8 +508,8 @@ pub fn ___syscall102(which: c_int, mut varargs: VarArgs, ctx: &mut Ctx) -> c_int
let name: i32 = SO_REUSEADDR;
let _: u32 = socket_varargs.get(ctx);
let value: u32 = socket_varargs.get(ctx);
let option_len: u32 = socket_varargs.get(ctx);
let value_addr = emscripten_memory_pointer!(ctx.memory(0), value) as *mut c_void; // Endian problem
let option_len = socket_varargs.get(ctx);
let value_addr = emscripten_memory_pointer!(ctx.memory(0), value) as _; // Endian problem
let ret = unsafe { setsockopt(socket, level, name, value_addr, option_len) };
debug!("=> socketfd: {}, level: {} (SOL_SOCKET/0xffff), name: {} (SO_REUSEADDR/4), value_addr: {:?}, option_len: {} = status: {}", socket, level, name, value_addr, option_len, ret);
@ -518,12 +518,12 @@ pub fn ___syscall102(which: c_int, mut varargs: VarArgs, ctx: &mut Ctx) -> c_int
15 => {
debug!("socket: getsockopt");
// getsockopt (sockfd: c_int, level: c_int, optname: c_int, optval: *mut c_void, optlen: *mut socklen_t) -> c_int
let socket: i32 = socket_varargs.get(ctx);
let socket = socket_varargs.get(ctx);
let level: i32 = socket_varargs.get(ctx);
let name: i32 = socket_varargs.get(ctx);
let value: u32 = socket_varargs.get(ctx);
let option_len: u32 = socket_varargs.get(ctx);
let value_addr = emscripten_memory_pointer!(ctx.memory(0), value) as *mut c_void;
let value_addr = emscripten_memory_pointer!(ctx.memory(0), value) as _;
let option_len_addr =
emscripten_memory_pointer!(ctx.memory(0), option_len) as *mut socklen_t;
unsafe { getsockopt(socket, level, name, value_addr, option_len_addr) }
@ -637,7 +637,7 @@ pub fn ___syscall140(which: i32, mut varargs: VarArgs, ctx: &mut Ctx) -> i32 {
// -> c_int
debug!("emscripten::___syscall140 (lseek) {}", which);
let fd: i32 = varargs.get(ctx);
let offset: i64 = varargs.get(ctx);
let offset = varargs.get(ctx);
let whence: i32 = varargs.get(ctx);
debug!("=> fd: {}, offset: {}, whence = {}", fd, offset, whence);
unsafe { lseek(fd, offset, whence) as _ }
@ -673,7 +673,7 @@ pub fn ___syscall145(which: c_int, mut varargs: VarArgs, ctx: &mut Ctx) -> i32 {
emscripten_memory_pointer!(ctx.memory(0), (iov + i * 8)) as *mut GuestIovec;
let iov_base = emscripten_memory_pointer!(ctx.memory(0), (*guest_iov_addr).iov_base)
as *mut c_void;
let iov_len: usize = (*guest_iov_addr).iov_len as _;
let iov_len = (*guest_iov_addr).iov_len as _;
// debug!("=> iov_addr: {:?}, {:?}", iov_base, iov_len);
let curr = read(fd, iov_base, iov_len);
if curr < 0 {
@ -709,7 +709,7 @@ pub fn ___syscall146(which: i32, mut varargs: VarArgs, ctx: &mut Ctx) -> i32 {
emscripten_memory_pointer!(ctx.memory(0), (iov + i * 8)) as *mut GuestIovec;
let iov_base = emscripten_memory_pointer!(ctx.memory(0), (*guest_iov_addr).iov_base)
as *const c_void;
let iov_len: usize = (*guest_iov_addr).iov_len as _;
let iov_len = (*guest_iov_addr).iov_len as _;
// debug!("=> iov_addr: {:?}, {:?}", iov_base, iov_len);
let curr = write(fd, iov_base, iov_len);
if curr < 0 {