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std.os.linux: add incomplete x32 arch bits file
This is very likely full of wrong stuff. It's effectively just a copy of the x86_64 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
502eca7b09
commit
d5481e6536
2 changed files with 204 additions and 9 deletions
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@ -32,14 +32,9 @@ test {
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}
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const arch_bits = switch (native_arch) {
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.x86 => @import("linux/x86.zig"),
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.x86_64 => @import("linux/x86_64.zig"),
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.aarch64, .aarch64_be => @import("linux/aarch64.zig"),
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.arm, .armeb, .thumb, .thumbeb => @import("linux/arm.zig"),
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.hexagon => @import("linux/hexagon.zig"),
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.riscv32 => @import("linux/riscv32.zig"),
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.riscv64 => @import("linux/riscv64.zig"),
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.sparc64 => @import("linux/sparc64.zig"),
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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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@ -49,7 +44,15 @@ const arch_bits = switch (native_arch) {
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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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.riscv32 => @import("linux/riscv32.zig"),
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.riscv64 => @import("linux/riscv64.zig"),
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.s390x => @import("linux/s390x.zig"),
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.sparc64 => @import("linux/sparc64.zig"),
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.x86 => @import("linux/x86.zig"),
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.x86_64 => switch (builtin.abi) {
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.gnux32, .muslx32 => @import("linux/x32.zig"),
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else => @import("linux/x86_64.zig"),
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},
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else => struct {},
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};
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@ -113,8 +116,8 @@ pub const SECCOMP = @import("linux/seccomp.zig");
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pub const syscalls = @import("linux/syscalls.zig");
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pub const SYS = switch (native_arch) {
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.arc => syscalls.Arc,
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.arm, .armeb, .thumb, .thumbeb => syscalls.Arm,
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.aarch64, .aarch64_be => syscalls.Arm64,
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.arm, .armeb, .thumb, .thumbeb => syscalls.Arm,
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.csky => syscalls.CSky,
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.hexagon => syscalls.Hexagon,
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.loongarch64 => syscalls.LoongArch64,
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@ -124,20 +127,20 @@ pub const SYS = switch (native_arch) {
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.gnuabin32, .muslabin32 => syscalls.MipsN32,
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else => syscalls.MipsN64,
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},
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.or1k => syscalls.OpenRisc,
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.powerpc, .powerpcle => syscalls.PowerPC,
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.powerpc64, .powerpc64le => syscalls.PowerPC64,
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.riscv32 => syscalls.RiscV32,
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.riscv64 => syscalls.RiscV64,
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.s390x => syscalls.S390x,
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.sparc => syscalls.Sparc,
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.sparc64 => syscalls.Sparc64,
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.powerpc, .powerpcle => syscalls.PowerPC,
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.powerpc64, .powerpc64le => syscalls.PowerPC64,
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.x86 => syscalls.X86,
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.x86_64 => switch (builtin.abi) {
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.gnux32, .muslx32 => syscalls.X32,
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else => syscalls.X64,
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},
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.xtensa => syscalls.Xtensa,
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.or1k => syscalls.OpenRisc,
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else => @compileError("The Zig Standard Library is missing syscall definitions for the target CPU architecture"),
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};
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192
lib/std/os/linux/x32.zig
Normal file
192
lib/std/os/linux/x32.zig
Normal file
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@ -0,0 +1,192 @@
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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 ("syscall"
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: [ret] "={rax}" (-> u32),
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: [number] "{rax}" (@intFromEnum(number)),
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: .{ .rcx = true, .r11 = 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 ("syscall"
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: [ret] "={rax}" (-> u32),
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: [number] "{rax}" (@intFromEnum(number)),
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[arg1] "{rdi}" (arg1),
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: .{ .rcx = true, .r11 = 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 ("syscall"
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: [ret] "={rax}" (-> u32),
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: [number] "{rax}" (@intFromEnum(number)),
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[arg1] "{rdi}" (arg1),
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[arg2] "{rsi}" (arg2),
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: .{ .rcx = true, .r11 = 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 ("syscall"
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: [ret] "={rax}" (-> u32),
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: [number] "{rax}" (@intFromEnum(number)),
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[arg1] "{rdi}" (arg1),
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[arg2] "{rsi}" (arg2),
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[arg3] "{rdx}" (arg3),
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: .{ .rcx = true, .r11 = 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 ("syscall"
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: [ret] "={rax}" (-> u32),
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: [number] "{rax}" (@intFromEnum(number)),
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[arg1] "{rdi}" (arg1),
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[arg2] "{rsi}" (arg2),
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[arg3] "{rdx}" (arg3),
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[arg4] "{r10}" (arg4),
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: .{ .rcx = true, .r11 = 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 ("syscall"
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: [ret] "={rax}" (-> u32),
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: [number] "{rax}" (@intFromEnum(number)),
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[arg1] "{rdi}" (arg1),
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[arg2] "{rsi}" (arg2),
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[arg3] "{rdx}" (arg3),
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[arg4] "{r10}" (arg4),
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[arg5] "{r8}" (arg5),
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: .{ .rcx = true, .r11 = 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 ("syscall"
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: [ret] "={rax}" (-> u32),
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: [number] "{rax}" (@intFromEnum(number)),
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[arg1] "{rdi}" (arg1),
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[arg2] "{rsi}" (arg2),
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[arg3] "{rdx}" (arg3),
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[arg4] "{r10}" (arg4),
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[arg5] "{r8}" (arg5),
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[arg6] "{r9}" (arg6),
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: .{ .rcx = true, .r11 = true, .memory = true });
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}
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pub fn clone() callconv(.naked) u32 {
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asm volatile (
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\\ movl $56,%%eax // SYS_clone
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\\ movq %%rdi,%%r11
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\\ movq %%rdx,%%rdi
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\\ movq %%r8,%%rdx
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\\ movq %%r9,%%r8
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\\ movq 8(%%rsp),%%r10
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\\ movq %%r11,%%r9
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\\ andq $-16,%%rsi
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\\ subq $8,%%rsi
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\\ movq %%rcx,(%%rsi)
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\\ syscall
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\\ testq %%rax,%%rax
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\\ jz 1f
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\\ retq
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\\
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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 %%rip
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);
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asm volatile (
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\\ xorl %%ebp,%%ebp
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\\
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\\ popq %%rdi
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\\ callq *%%r9
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\\ movl %%eax,%%edi
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\\ movl $60,%%eax // SYS_exit
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\\ syscall
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\\
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);
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}
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pub const restore = restore_rt;
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pub fn restore_rt() callconv(.naked) noreturn {
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switch (builtin.zig_backend) {
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.stage2_c => asm volatile (
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\\ movl %[number], %%eax
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\\ syscall
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:
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: [number] "i" (@intFromEnum(SYS.rt_sigreturn)),
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),
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else => asm volatile (
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\\ syscall
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:
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: [number] "{rax}" (@intFromEnum(SYS.rt_sigreturn)),
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),
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}
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}
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pub const mode_t = u32;
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pub const time_t = i32;
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pub const nlink_t = u32;
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pub const blksize_t = i32;
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pub const blkcnt_t = i32;
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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 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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pub const GETCPU_SYM = "__vdso_getcpu";
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pub const GETCPU_VER = "LINUX_2.6";
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};
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pub const ARCH = struct {
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pub const SET_GS = 0x1001;
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pub const SET_FS = 0x1002;
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pub const GET_FS = 0x1003;
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pub const GET_GS = 0x1004;
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};
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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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ino: ino_t,
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nlink: nlink_t,
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mode: mode_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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__pad0: u32,
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rdev: dev_t,
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size: off_t,
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blksize: blksize_t,
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blocks: i64,
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atim: std.os.linux.timespec,
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mtim: std.os.linux.timespec,
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ctim: std.os.linux.timespec,
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__unused: [3]i32,
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pub fn atime(self: @This()) std.os.linux.timespec {
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return self.atim;
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}
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pub fn mtime(self: @This()) std.os.linux.timespec {
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return self.mtim;
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}
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pub fn ctime(self: @This()) std.os.linux.timespec {
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return self.ctim;
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}
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};
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