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Add unix syscall class to syscall nums for macos #22

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Add unix syscall class to syscall nums for macos #22

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22 changes: 15 additions & 7 deletions src/platform/macos-x86_64/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -11,11 +11,19 @@

pub mod nr;

/// Add the unix syscall class to the syscall number
///
/// https://opensource.apple.com/source/xnu/xnu-4570.41.2/osfmk/mach/i386/syscall_sw.h.auto.html
#[inline(always)]
pub fn syscall_construct_unix(n: usize) -> usize {
(2usize << 24) | (n & !(0xFFusize << 24))
}

#[inline(always)]
pub unsafe fn syscall0(n: usize) -> usize {
let ret: usize;
asm!("syscall" : "={rax}"(ret)
: "{rax}"(n)
: "{rax}"(syscall_construct_unix(n))
: "rcx", "r11", "memory"
: "volatile");
ret
Expand All @@ -25,7 +33,7 @@ pub unsafe fn syscall0(n: usize) -> usize {
pub unsafe fn syscall1(n: usize, a1: usize) -> usize {
let ret: usize;
asm!("syscall" : "={rax}"(ret)
: "{rax}"(n), "{rdi}"(a1)
: "{rax}"(syscall_construct_unix(n)), "{rdi}"(a1)
: "rcx", "r11", "memory"
: "volatile");
ret
Expand All @@ -35,7 +43,7 @@ pub unsafe fn syscall1(n: usize, a1: usize) -> usize {
pub unsafe fn syscall2(n: usize, a1: usize, a2: usize) -> usize {
let ret: usize;
asm!("syscall" : "={rax}"(ret)
: "{rax}"(n), "{rdi}"(a1), "{rsi}"(a2)
: "{rax}"(syscall_construct_unix(n)), "{rdi}"(a1), "{rsi}"(a2)
: "rcx", "r11", "memory"
: "volatile");
ret
Expand All @@ -45,7 +53,7 @@ pub unsafe fn syscall2(n: usize, a1: usize, a2: usize) -> usize {
pub unsafe fn syscall3(n: usize, a1: usize, a2: usize, a3: usize) -> usize {
let ret: usize;
asm!("syscall" : "={rax}"(ret)
: "{rax}"(n), "{rdi}"(a1), "{rsi}"(a2), "{rdx}"(a3)
: "{rax}"(syscall_construct_unix(n)), "{rdi}"(a1), "{rsi}"(a2), "{rdx}"(a3)
: "rcx", "r11", "memory"
: "volatile");
ret
Expand All @@ -60,7 +68,7 @@ pub unsafe fn syscall4(n: usize,
-> usize {
let ret: usize;
asm!("syscall" : "={rax}"(ret)
: "{rax}"(n), "{rdi}"(a1), "{rsi}"(a2), "{rdx}"(a3),
: "{rax}"(syscall_construct_unix(n)), "{rdi}"(a1), "{rsi}"(a2), "{rdx}"(a3),
"{r10}"(a4)
: "rcx", "r11", "memory"
: "volatile");
Expand All @@ -77,7 +85,7 @@ pub unsafe fn syscall5(n: usize,
-> usize {
let ret: usize;
asm!("syscall" : "={rax}"(ret)
: "{rax}"(n), "{rdi}"(a1), "{rsi}"(a2), "{rdx}"(a3),
: "{rax}"(syscall_construct_unix(n)), "{rdi}"(a1), "{rsi}"(a2), "{rdx}"(a3),
"{r10}"(a4), "{r8}"(a5)
: "rcx", "r11", "memory"
: "volatile");
Expand All @@ -95,7 +103,7 @@ pub unsafe fn syscall6(n: usize,
-> usize {
let ret: usize;
asm!("syscall" : "={rax}"(ret)
: "{rax}"(n), "{rdi}"(a1), "{rsi}"(a2), "{rdx}"(a3),
: "{rax}"(syscall_construct_unix(n)), "{rdi}"(a1), "{rsi}"(a2), "{rdx}"(a3),
"{r10}"(a4), "{r8}"(a5), "{r9}"(a6)
: "rcx", "r11", "memory"
: "volatile");
Expand Down