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const builtin = @import("builtin");
const std = @import("../../std.zig");
const SYS = std.os.linux.SYS;
pub fn syscall0(number: SYS) u32 {
return asm volatile (
\\ l.sys 1
: [ret] "={r11}" (-> u32),
: [number] "{r11}" (@intFromEnum(number)),
: .{ .r3 = true, .r4 = true, .r5 = true, .r6 = true, .r7 = true, .r8 = true, .r12 = true, .r13 = true, .r15 = true, .r17 = true, .r19 = true, .r21 = true, .r23 = true, .r25 = true, .r27 = true, .r29 = true, .r31 = true, .memory = true });
}
pub fn syscall1(number: SYS, arg1: u32) u32 {
return asm volatile (
\\ l.sys 1
: [ret] "={r11}" (-> u32),
: [number] "{r11}" (@intFromEnum(number)),
[arg1] "{r3}" (arg1),
: .{ .r4 = true, .r5 = true, .r6 = true, .r7 = true, .r8 = true, .r12 = true, .r13 = true, .r15 = true, .r17 = true, .r19 = true, .r21 = true, .r23 = true, .r25 = true, .r27 = true, .r29 = true, .r31 = true, .memory = true });
}
pub fn syscall2(number: SYS, arg1: u32, arg2: u32) u32 {
return asm volatile (
\\ l.sys 1
: [ret] "={r11}" (-> u32),
: [number] "{r11}" (@intFromEnum(number)),
[arg1] "{r3}" (arg1),
[arg2] "{r4}" (arg2),
: .{ .r5 = true, .r6 = true, .r7 = true, .r8 = true, .r12 = true, .r13 = true, .r15 = true, .r17 = true, .r19 = true, .r21 = true, .r23 = true, .r25 = true, .r27 = true, .r29 = true, .r31 = true, .memory = true });
}
pub fn syscall3(number: SYS, arg1: u32, arg2: u32, arg3: u32) u32 {
return asm volatile (
\\ l.sys 1
: [ret] "={r11}" (-> u32),
: [number] "{r11}" (@intFromEnum(number)),
[arg1] "{r3}" (arg1),
[arg2] "{r4}" (arg2),
[arg3] "{r5}" (arg3),
: .{ .r6 = true, .r7 = true, .r8 = true, .r12 = true, .r13 = true, .r15 = true, .r17 = true, .r19 = true, .r21 = true, .r23 = true, .r25 = true, .r27 = true, .r29 = true, .r31 = true, .memory = true });
}
pub fn syscall4(number: SYS, arg1: u32, arg2: u32, arg3: u32, arg4: u32) u32 {
return asm volatile (
\\ l.sys 1
: [ret] "={r11}" (-> u32),
: [number] "{r11}" (@intFromEnum(number)),
[arg1] "{r3}" (arg1),
[arg2] "{r4}" (arg2),
[arg3] "{r5}" (arg3),
[arg4] "{r6}" (arg4),
: .{ .r7 = true, .r8 = true, .r12 = true, .r13 = true, .r15 = true, .r17 = true, .r19 = true, .r21 = true, .r23 = true, .r25 = true, .r27 = true, .r29 = true, .r31 = true, .memory = true });
}
pub fn syscall5(number: SYS, arg1: u32, arg2: u32, arg3: u32, arg4: u32, arg5: u32) u32 {
return asm volatile (
\\ l.sys 1
: [ret] "={r11}" (-> u32),
: [number] "{r11}" (@intFromEnum(number)),
[arg1] "{r3}" (arg1),
[arg2] "{r4}" (arg2),
[arg3] "{r5}" (arg3),
[arg4] "{r6}" (arg4),
[arg5] "{r7}" (arg5),
: .{ .r8 = true, .r12 = true, .r13 = true, .r15 = true, .r17 = true, .r19 = true, .r21 = true, .r23 = true, .r25 = true, .r27 = true, .r29 = true, .r31 = true, .memory = true });
}
pub fn syscall6(
number: SYS,
arg1: u32,
arg2: u32,
arg3: u32,
arg4: u32,
arg5: u32,
arg6: u32,
) u32 {
return asm volatile (
\\ l.sys 1
: [ret] "={r11}" (-> u32),
: [number] "{r11}" (@intFromEnum(number)),
[arg1] "{r3}" (arg1),
[arg2] "{r4}" (arg2),
[arg3] "{r5}" (arg3),
[arg4] "{r6}" (arg4),
[arg5] "{r7}" (arg5),
[arg6] "{r8}" (arg6),
: .{ .r12 = true, .r13 = true, .r15 = true, .r17 = true, .r19 = true, .r21 = true, .r23 = true, .r25 = true, .r27 = true, .r29 = true, .r31 = true, .memory = true });
}
pub fn clone() callconv(.naked) u32 {
// __clone(func, stack, flags, arg, ptid, tls, ctid)
// r3, r4, r5, r6, r7, r8, +0
//
// syscall(SYS_clone, flags, stack, ptid, tls, ctid)
// r11 r3, r4, r5, r6, r7
asm volatile (
\\ # Save function pointer and argument pointer on new thread stack
\\ l.andi r4, r4, -4
\\ l.addi r4, r4, -8
\\ l.sw 0(r4), r3
\\ l.sw 4(r4), r6
\\
\\ # Shuffle (fn,sp,fl,arg,ptid,tls,ctid) to (fl,sp,ptid,tls,ctid)
\\ l.ori r11, r0, 220 # SYS_clone
\\ l.ori r3, r5, 0
\\ l.ori r5, r7, 0
\\ l.ori r6, r8, 0
\\ l.lwz r7, 0(r1)
\\ l.sys 1
\\ l.sfeqi r11, 0
\\ l.bf 1f
\\ l.jr r9
\\1:
);
if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (
\\ .cfi_undefined r9
);
asm volatile (
\\ l.ori r2, r0, 0
\\ l.ori r9, r0, 0
\\
\\ l.lwz r11, 0(r1)
\\ l.lwz r3, 4(r1)
\\ l.jalr r11
\\
\\ l.ori r3, r11, 0
\\ l.ori r11, r0, 93 # SYS_exit
\\ l.sys 1
);
}
pub const VDSO = void;
pub const blksize_t = u32;
pub const nlink_t = u32;
pub const time_t = i32;
pub const mode_t = u32;
pub const off_t = i64;
pub const ino_t = u64;
pub const dev_t = u64;
pub const blkcnt_t = i64;
// The `stat64` definition used by the Linux kernel.
pub const Stat = extern struct {
dev: dev_t,
ino: ino_t,
mode: mode_t,
nlink: nlink_t,
uid: std.os.linux.uid_t,
gid: std.os.linux.gid_t,
rdev: dev_t,
_pad0: [2]u32,
size: off_t,
blksize: blksize_t,
_pad1: u32,
blocks: blkcnt_t,
atim: std.os.linux.timespec,
mtim: std.os.linux.timespec,
ctim: std.os.linux.timespec,
_pad2: [2]u32,
pub fn atime(self: @This()) std.os.linux.timespec {
return self.atim;
}
pub fn mtime(self: @This()) std.os.linux.timespec {
return self.mtim;
}
pub fn ctime(self: @This()) std.os.linux.timespec {
return self.ctim;
}
};
|
