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std.os.linux: add incomplete mipsn32 arch bits file
This is very likely full of wrong stuff. It's effectively just a copy of the mips64 file - needed because the former stopped using usize/isize. To be clear, this is no more broken than the old situation was; this just makes the brokenness explicit.
This commit is contained in:
Alex Rønne Petersen
parent
aa8e53908a
commit
502eca7b09
@ -43,7 +43,10 @@ const arch_bits = switch (native_arch) {
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.loongarch64 => @import("linux/loongarch64.zig"),
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.m68k => @import("linux/m68k.zig"),
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.mips, .mipsel => @import("linux/mips.zig"),
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.mips64, .mips64el => @import("linux/mips64.zig"),
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.mips64, .mips64el => switch (builtin.abi) {
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.gnuabin32, .muslabin32 => @import("linux/mipsn32.zig"),
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else => @import("linux/mips64.zig"),
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},
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.powerpc, .powerpcle => @import("linux/powerpc.zig"),
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.powerpc64, .powerpc64le => @import("linux/powerpc64.zig"),
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.s390x => @import("linux/s390x.zig"),
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271
lib/std/os/linux/mipsn32.zig
Normal file
271
lib/std/os/linux/mipsn32.zig
Normal file
@ -0,0 +1,271 @@
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// TODO: A lot of this file is very likely wrong.
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const builtin = @import("builtin");
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const std = @import("../../std.zig");
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const SYS = std.os.linux.SYS;
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pub fn syscall0(number: SYS) u32 {
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return asm volatile (
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\\ syscall
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\\ beq $7, $zero, 1f
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\\ blez $2, 1f
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\\ dsubu $2, $0, $2
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\\ 1:
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: [ret] "={$2}" (-> u32),
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: [number] "{$2}" (@intFromEnum(number)),
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: .{ .r1 = true, .r3 = true, .r4 = true, .r5 = true, .r6 = true, .r7 = true, .r8 = true, .r9 = true, .r10 = true, .r11 = true, .r12 = true, .r13 = true, .r14 = true, .r15 = true, .r24 = true, .r25 = true, .hi = true, .lo = true, .memory = true });
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}
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pub fn syscall_pipe(fd: *[2]i32) u32 {
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return asm volatile (
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\\ .set noat
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\\ .set noreorder
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\\ syscall
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\\ beq $7, $zero, 1f
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\\ nop
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\\ b 2f
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\\ subu $2, $0, $2
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\\ 1:
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\\ sw $2, 0($4)
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\\ sw $3, 4($4)
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\\ 2:
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: [ret] "={$2}" (-> u32),
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: [number] "{$2}" (@intFromEnum(SYS.pipe)),
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[fd] "{$4}" (fd),
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: .{ .r1 = true, .r3 = true, .r5 = true, .r6 = true, .r7 = true, .r8 = true, .r9 = true, .r10 = true, .r11 = true, .r12 = true, .r13 = true, .r14 = true, .r15 = true, .r24 = true, .r25 = true, .hi = true, .lo = true, .memory = true });
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}
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pub fn syscall1(number: SYS, arg1: u32) u32 {
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return asm volatile (
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\\ syscall
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\\ beq $7, $zero, 1f
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\\ blez $2, 1f
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\\ nop
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\\ dsubu $2, $0, $2
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\\ 1:
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: [ret] "={$2}" (-> u32),
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: [number] "{$2}" (@intFromEnum(number)),
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[arg1] "{$4}" (arg1),
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: .{ .r1 = true, .r3 = true, .r5 = true, .r6 = true, .r7 = true, .r8 = true, .r9 = true, .r10 = true, .r11 = true, .r12 = true, .r13 = true, .r14 = true, .r15 = true, .r24 = true, .r25 = true, .hi = true, .lo = true, .memory = true });
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}
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pub fn syscall2(number: SYS, arg1: u32, arg2: u32) u32 {
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return asm volatile (
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\\ syscall
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\\ beq $7, $zero, 1f
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\\ blez $2, 1f
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\\ dsubu $2, $0, $2
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\\ 1:
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: [ret] "={$2}" (-> u32),
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: [number] "{$2}" (@intFromEnum(number)),
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[arg1] "{$4}" (arg1),
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[arg2] "{$5}" (arg2),
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: .{ .r1 = true, .r3 = true, .r6 = true, .r7 = true, .r8 = true, .r9 = true, .r10 = true, .r11 = true, .r12 = true, .r13 = true, .r14 = true, .r15 = true, .r24 = true, .r25 = true, .hi = true, .lo = true, .memory = true });
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}
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pub fn syscall3(number: SYS, arg1: u32, arg2: u32, arg3: u32) u32 {
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return asm volatile (
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\\ syscall
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\\ beq $7, $zero, 1f
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\\ blez $2, 1f
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\\ dsubu $2, $0, $2
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\\ 1:
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: [ret] "={$2}" (-> u32),
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: [number] "{$2}" (@intFromEnum(number)),
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[arg1] "{$4}" (arg1),
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[arg2] "{$5}" (arg2),
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[arg3] "{$6}" (arg3),
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: .{ .r1 = true, .r3 = true, .r7 = true, .r8 = true, .r9 = true, .r10 = true, .r11 = true, .r12 = true, .r13 = true, .r14 = true, .r15 = true, .r24 = true, .r25 = true, .hi = true, .lo = true, .memory = true });
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}
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pub fn syscall4(number: SYS, arg1: u32, arg2: u32, arg3: u32, arg4: u32) u32 {
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return asm volatile (
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\\ syscall
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\\ beq $7, $zero, 1f
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\\ blez $2, 1f
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\\ dsubu $2, $0, $2
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\\ 1:
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: [ret] "={$2}" (-> u32),
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: [number] "{$2}" (@intFromEnum(number)),
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[arg1] "{$4}" (arg1),
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[arg2] "{$5}" (arg2),
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[arg3] "{$6}" (arg3),
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[arg4] "{$7}" (arg4),
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: .{ .r1 = true, .r3 = true, .r8 = true, .r9 = true, .r10 = true, .r11 = true, .r12 = true, .r13 = true, .r14 = true, .r15 = true, .r24 = true, .r25 = true, .hi = true, .lo = true, .memory = true });
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}
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pub fn syscall5(number: SYS, arg1: u32, arg2: u32, arg3: u32, arg4: u32, arg5: u32) u32 {
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return asm volatile (
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\\ syscall
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\\ beq $7, $zero, 1f
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\\ blez $2, 1f
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\\ dsubu $2, $0, $2
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\\ 1:
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: [ret] "={$2}" (-> u32),
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: [number] "{$2}" (@intFromEnum(number)),
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[arg1] "{$4}" (arg1),
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[arg2] "{$5}" (arg2),
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[arg3] "{$6}" (arg3),
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[arg4] "{$7}" (arg4),
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[arg5] "{$8}" (arg5),
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: .{ .r1 = true, .r3 = true, .r8 = true, .r9 = true, .r10 = true, .r11 = true, .r12 = true, .r13 = true, .r14 = true, .r15 = true, .r24 = true, .r25 = true, .hi = true, .lo = true, .memory = true });
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}
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pub fn syscall6(
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number: SYS,
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arg1: u32,
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arg2: u32,
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arg3: u32,
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arg4: u32,
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arg5: u32,
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arg6: u32,
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) u32 {
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return asm volatile (
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\\ syscall
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\\ beq $7, $zero, 1f
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\\ blez $2, 1f
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\\ dsubu $2, $0, $2
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\\ 1:
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: [ret] "={$2}" (-> u32),
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: [number] "{$2}" (@intFromEnum(number)),
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[arg1] "{$4}" (arg1),
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[arg2] "{$5}" (arg2),
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[arg3] "{$6}" (arg3),
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[arg4] "{$7}" (arg4),
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[arg5] "{$8}" (arg5),
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[arg6] "{$9}" (arg6),
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: .{ .r1 = true, .r3 = true, .r8 = true, .r9 = true, .r10 = true, .r11 = true, .r12 = true, .r13 = true, .r14 = true, .r15 = true, .r24 = true, .r25 = true, .hi = true, .lo = true, .memory = true });
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}
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pub fn syscall7(
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number: SYS,
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arg1: u32,
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arg2: u32,
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arg3: u32,
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arg4: u32,
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arg5: u32,
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arg6: u32,
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arg7: u32,
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) u32 {
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return asm volatile (
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\\ syscall
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\\ beq $7, $zero, 1f
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\\ blez $2, 1f
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\\ dsubu $2, $0, $2
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\\ 1:
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: [ret] "={$2}" (-> u32),
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: [number] "{$2}" (@intFromEnum(number)),
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[arg1] "{$4}" (arg1),
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[arg2] "{$5}" (arg2),
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[arg3] "{$6}" (arg3),
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[arg4] "{$7}" (arg4),
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[arg5] "{$8}" (arg5),
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[arg6] "{$9}" (arg6),
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[arg7] "{$10}" (arg7),
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: .{ .r1 = true, .r3 = true, .r8 = true, .r9 = true, .r10 = true, .r11 = true, .r12 = true, .r13 = true, .r14 = true, .r15 = true, .r24 = true, .r25 = true, .hi = true, .lo = true, .memory = true });
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}
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pub fn clone() callconv(.naked) u32 {
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// __clone(func, stack, flags, arg, ptid, tls, ctid)
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// 3, 4, 5, 6, 7, 8, 9
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//
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// syscall(SYS_clone, flags, stack, ptid, tls, ctid)
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// 2 4, 5, 6, 7, 8
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asm volatile (
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\\ # Save function pointer and argument pointer on new thread stack
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\\ and $5, $5, -16
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\\ dsubu $5, $5, 16
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\\ sd $4, 0($5)
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\\ sd $7, 8($5)
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\\ # Shuffle (fn,sp,fl,arg,ptid,tls,ctid) to (fl,sp,ptid,tls,ctid)
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\\ move $4, $6
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\\ move $6, $8
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\\ move $7, $9
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\\ move $8, $10
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\\ li $2, 5055 # SYS_clone
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\\ syscall
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\\ beq $7, $0, 1f
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\\ nop
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\\ jr $ra
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\\ dsubu $2, $0, $2
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\\1:
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\\ beq $2, $0, 1f
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\\ nop
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\\ jr $ra
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\\ nop
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\\1:
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);
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if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (
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\\ .cfi_undefined $ra
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);
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asm volatile (
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\\ move $fp, $zero
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\\ move $ra, $zero
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\\
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\\ ld $25, 0($sp)
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\\ ld $4, 8($sp)
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\\ jalr $25
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\\ nop
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\\ move $4, $2
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\\ li $2, 5058 # SYS_exit
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\\ syscall
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);
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}
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pub const VDSO = struct {
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pub const CGT_SYM = "__vdso_clock_gettime";
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pub const CGT_VER = "LINUX_2.6";
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};
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pub const blksize_t = u32;
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pub const nlink_t = u32;
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pub const time_t = i32;
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pub const mode_t = u32;
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pub const off_t = i64;
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pub const ino_t = u64;
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pub const dev_t = u64;
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pub const blkcnt_t = i64;
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// The `stat` definition used by the Linux kernel.
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pub const Stat = extern struct {
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dev: dev_t,
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__pad0: [2]u32, // -1 because our dev_t is u64 (kernel dev_t is really u32).
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ino: ino_t,
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mode: mode_t,
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nlink: nlink_t,
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uid: std.os.linux.uid_t,
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gid: std.os.linux.gid_t,
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rdev: dev_t,
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__pad1: [2]u32, // -1 because our dev_t is u64 (kernel dev_t is really u32).
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size: off_t,
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atim: u32,
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atim_nsec: u32,
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mtim: u32,
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mtim_nsec: u32,
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ctim: u32,
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ctim_nsec: u32,
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blksize: blksize_t,
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__pad3: u32,
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blocks: blkcnt_t,
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pub fn atime(self: @This()) std.os.linux.timespec {
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return .{
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.sec = self.atim,
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.nsec = self.atim_nsec,
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};
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}
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pub fn mtime(self: @This()) std.os.linux.timespec {
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return .{
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.sec = self.mtim,
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.nsec = self.mtim_nsec,
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};
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}
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pub fn ctime(self: @This()) std.os.linux.timespec {
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return .{
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.sec = self.ctim,
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.nsec = self.ctim_nsec,
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};
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}
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};
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