authorgravatar for mai-lapyst@noreply.codeberg.orgMai-Lapyst <mai-lapyst@noreply.codeberg.org> 2026-02-11 22:54:30+01:00
committergravatar for alex@alexrp.comAlex Rønne Petersen <alex@alexrp.com> 2026-05-23 06:15:24+02:00
log7534ac736727c69c7314fdf194ef6a0ec30216a7
tree0351f45b66a2fb4e3aa69938c1b74c6b96fb6741
parent6e6df110279701807fcf8c7fe8a9be71a66ae070
signaturebadge-check Signed by SSH key SHA256:7B/LJ7bpR1eX8aCXSr4mtd5M45VMPKcx9zY8e95b5QM

Adding more support for DEC Alpha to std

This adds support to std, primarily for linux, to support the Alpha architecture. closes #30940 closes #30926

8 files changed, 1039 insertions(+), 4 deletions(-)

lib/std/Thread.zig+2-2
...@@ -1217,8 +1217,8 @@ const LinuxThreadImpl = struct {...@@ -1217,8 +1217,8 @@ const LinuxThreadImpl = struct {
1217 \\ ldi $16, 01217 \\ ldi $16, 0
1218 \\ callsys1218 \\ callsys
1219 :1219 :
1220 : [ptr] "{r16}" (@intFromPtr(self.mapped.ptr)),1220 : [ptr] "{$16}" (@intFromPtr(self.mapped.ptr)),
1221 [len] "{r17}" (self.mapped.len),1221 [len] "{$17}" (self.mapped.len),
1222 ),1222 ),
1223 .hexagon => asm volatile (1223 .hexagon => asm volatile (
1224 \\ r6 = #215 // SYS_munmap1224 \\ r6 = #215 // SYS_munmap
lib/std/debug/Dwarf.zig+3
...@@ -1436,6 +1436,7 @@ pub fn compactUnwindToDwarfRegNumber(unwind_reg_number: u3) !u16 {...@@ -1436,6 +1436,7 @@ pub fn compactUnwindToDwarfRegNumber(unwind_reg_number: u3) !u16 {
1436pub fn ipRegNum(arch: std.Target.Cpu.Arch) ?u16 {1436pub fn ipRegNum(arch: std.Target.Cpu.Arch) ?u16 {
1437 return switch (arch) {1437 return switch (arch) {
1438 .aarch64, .aarch64_be => 32,1438 .aarch64, .aarch64_be => 32,
1439 .alpha => 64,
1439 .arc, .arceb => 160,1440 .arc, .arceb => 160,
1440 .arm, .armeb, .thumb, .thumbeb => 15,1441 .arm, .armeb, .thumb, .thumbeb => 15,
1441 .csky => 64,1442 .csky => 64,
...@@ -1460,6 +1461,7 @@ pub fn ipRegNum(arch: std.Target.Cpu.Arch) ?u16 {...@@ -1460,6 +1461,7 @@ pub fn ipRegNum(arch: std.Target.Cpu.Arch) ?u16 {
1460pub fn fpRegNum(arch: std.Target.Cpu.Arch) u16 {1461pub fn fpRegNum(arch: std.Target.Cpu.Arch) u16 {
1461 return switch (arch) {1462 return switch (arch) {
1462 .aarch64, .aarch64_be => 29,1463 .aarch64, .aarch64_be => 29,
1464 .alpha => 15,
1463 .arc, .arceb => 27,1465 .arc, .arceb => 27,
1464 .arm, .armeb, .thumb, .thumbeb => 11,1466 .arm, .armeb, .thumb, .thumbeb => 11,
1465 .csky => 14,1467 .csky => 14,
...@@ -1484,6 +1486,7 @@ pub fn fpRegNum(arch: std.Target.Cpu.Arch) u16 {...@@ -1484,6 +1486,7 @@ pub fn fpRegNum(arch: std.Target.Cpu.Arch) u16 {
1484pub fn spRegNum(arch: std.Target.Cpu.Arch) u16 {1486pub fn spRegNum(arch: std.Target.Cpu.Arch) u16 {
1485 return switch (arch) {1487 return switch (arch) {
1486 .aarch64, .aarch64_be => 31,1488 .aarch64, .aarch64_be => 31,
1489 .alpha => 30,
1487 .arc, .arceb => 28,1490 .arc, .arceb => 28,
1488 .arm, .armeb, .thumb, .thumbeb => 13,1491 .arm, .armeb, .thumb, .thumbeb => 13,
1489 .csky => 14,1492 .csky => 14,
lib/std/debug/cpu_context.zig+74
...@@ -5,6 +5,7 @@ pub const Native = if (@hasDecl(root, "debug") and @hasDecl(root.debug, "CpuCont...@@ -5,6 +5,7 @@ pub const Native = if (@hasDecl(root, "debug") and @hasDecl(root.debug, "CpuCont
5 root.debug.CpuContext5 root.debug.CpuContext
6else switch (native_arch) {6else switch (native_arch) {
7 .aarch64, .aarch64_be => Aarch64,7 .aarch64, .aarch64_be => Aarch64,
8 .alpha => Alpha,
8 .arc, .arceb => Arc,9 .arc, .arceb => Arc,
9 .arm, .armeb, .thumb, .thumbeb => Arm,10 .arm, .armeb, .thumb, .thumbeb => Arm,
10 .csky => Csky,11 .csky => Csky,
...@@ -103,6 +104,10 @@ pub fn fromPosixSignalContext(ctx_ptr: ?*const anyopaque) ?Native {...@@ -103,6 +104,10 @@ pub fn fromPosixSignalContext(ctx_ptr: ?*const anyopaque) ?Native {
103 .sp = uc.mcontext.sp,104 .sp = uc.mcontext.sp,
104 .pc = uc.mcontext.pc,105 .pc = uc.mcontext.pc,
105 },106 },
107 .alpha => .{
108 .r = uc.mcontext.r,
109 .pc = uc.mcontext.pc,
110 },
106 .csky => .{111 .csky => .{
107 .r = uc.mcontext.r0_13 ++112 .r = uc.mcontext.r0_13 ++
108 [_]u32{ uc.mcontext.r14, uc.mcontext.r15 } ++113 [_]u32{ uc.mcontext.r14, uc.mcontext.r15 } ++
...@@ -293,6 +298,75 @@ const Aarch64 = extern struct {...@@ -293,6 +298,75 @@ const Aarch64 = extern struct {
293 }298 }
294};299};
295300
301const Alpha = extern struct {
302 /// The numbered general-purpose registers R0 - R31.
303 r: [32]u64,
304 pc: u64,
305
306 pub inline fn current() Alpha {
307 var ctx: Alpha = undefined;
308 asm volatile (
309 \\ stq $0 , 0x000($0)
310 \\ stq $1 , 0x008($0)
311 \\ stq $2 , 0x010($0)
312 \\ stq $3 , 0x018($0)
313 \\ stq $4 , 0x020($0)
314 \\ stq $5 , 0x028($0)
315 \\ stq $6 , 0x030($0)
316 \\ stq $7 , 0x038($0)
317 \\ stq $8 , 0x040($0)
318 \\ stq $9 , 0x048($0)
319 \\ stq $10, 0x050($0)
320 \\ stq $11, 0x058($0)
321 \\ stq $12, 0x060($0)
322 \\ stq $13, 0x068($0)
323 \\ stq $14, 0x070($0)
324 \\ stq $15, 0x078($0)
325 \\ stq $16, 0x080($0)
326 \\ stq $17, 0x088($0)
327 \\ stq $18, 0x090($0)
328 \\ stq $19, 0x098($0)
329 \\ stq $20, 0x0a0($0)
330 \\ stq $21, 0x0a8($0)
331 \\ stq $22, 0x0b0($0)
332 \\ stq $23, 0x0b8($0)
333 \\ stq $24, 0x0c0($0)
334 \\ stq $25, 0x0c8($0)
335 \\ stq $26, 0x0d0($0)
336 \\ stq $27, 0x0d8($0)
337 \\ stq $28, 0x0e0($0)
338 \\ stq $29, 0x0e8($0)
339 \\ stq $30, 0x0f0($0)
340 \\
341 \\ br $1, 1f
342 \\1:
343 \\ stq $1, 0x100($0)
344 :
345 : [ctx] "{r0}" (&ctx),
346 : .{ .r1 = true, .memory = true });
347 return ctx;
348 }
349
350 pub fn getFp(ctx: *const Alpha) u64 {
351 return ctx.r[15];
352 }
353 pub fn getPc(ctx: *const Alpha) u64 {
354 return ctx.pc;
355 }
356
357 pub fn dwarfRegisterBytes(ctx: *Aarch64, register_num: u16) DwarfRegisterError![]u8 {
358 switch (register_num) {
359 0...31 => return @ptrCast(&ctx.r[register_num]),
360 64 => return @ptrCast(&ctx.pc),
361
362 32...63 => return error.UnsupportedRegister, // f0 - f31
363 66 => return error.UnsupportedRegister, // uniq
364
365 else => return error.InvalidRegister,
366 }
367 }
368};
369
296/// This is an `extern struct` so that inline assembly in `current` can use field offsets.370/// This is an `extern struct` so that inline assembly in `current` can use field offsets.
297const Arc = extern struct {371const Arc = extern struct {
298 /// The numbered general-purpose registers r0 - r31.372 /// The numbered general-purpose registers r0 - r31.
lib/std/os/linux.zig+98-1
...@@ -31,6 +31,7 @@ test {...@@ -31,6 +31,7 @@ test {
3131
32const arch_bits = switch (native_arch) {32const arch_bits = switch (native_arch) {
33 .aarch64, .aarch64_be => @import("linux/aarch64.zig"),33 .aarch64, .aarch64_be => @import("linux/aarch64.zig"),
34 .alpha => @import("linux/alpha.zig"),
34 .arc, .arceb => @import("linux/arc.zig"),35 .arc, .arceb => @import("linux/arc.zig"),
35 .arm, .armeb, .thumb, .thumbeb => @import("linux/arm.zig"),36 .arm, .armeb, .thumb, .thumbeb => @import("linux/arm.zig"),
36 .hexagon => @import("linux/hexagon.zig"),37 .hexagon => @import("linux/hexagon.zig"),
...@@ -124,6 +125,7 @@ pub const syscalls = @import("linux/syscalls.zig");...@@ -124,6 +125,7 @@ pub const syscalls = @import("linux/syscalls.zig");
124pub const SYS = switch (native_arch) {125pub const SYS = switch (native_arch) {
125 .arc, .arceb => syscalls.Arc,126 .arc, .arceb => syscalls.Arc,
126 .aarch64, .aarch64_be => syscalls.Arm64,127 .aarch64, .aarch64_be => syscalls.Arm64,
128 .alpha => syscalls.Alpha,
127 .arm, .armeb, .thumb, .thumbeb => syscalls.Arm,129 .arm, .armeb, .thumb, .thumbeb => syscalls.Arm,
128 .csky => syscalls.CSky,130 .csky => syscalls.CSky,
129 .hexagon => syscalls.Hexagon,131 .hexagon => syscalls.Hexagon,
...@@ -311,6 +313,30 @@ pub const MAP = switch (native_arch) {...@@ -311,6 +313,30 @@ pub const MAP = switch (native_arch) {
311 UNINITIALIZED: bool = false,313 UNINITIALIZED: bool = false,
312 _: u5 = 0,314 _: u5 = 0,
313 },315 },
316 .alpha => packed struct(u32) {
317 TYPE: MAP_TYPE,
318 ANONYMOUS: bool = false,
319 _3: u1 = 0,
320 _4: u1 = 0,
321 _5: u1 = 0,
322 FIXED: bool = false,
323 _7: u1 = 0,
324 _8: u1 = 0,
325 _9: u1 = 0,
326 GROWSDOWN: bool = false,
327 DENYWRITE: bool = false,
328 EXECUTABLE: bool = false,
329 LOCKED: bool = false,
330 NORESERVE: bool = false,
331 POPULATE: bool = false,
332 NONBLOCK: bool = false,
333 STACK: bool = false,
334 HUGHETLB: bool = false,
335 FIXED_NOREPLACE: bool = false,
336 _19: u4 = 0,
337 _20: u1 = 0,
338 _: u5 = 0,
339 },
314 else => @compileError("missing std.os.linux.MAP constants for this architecture"),340 else => @compileError("missing std.os.linux.MAP constants for this architecture"),
315};341};
316342
...@@ -520,6 +546,29 @@ pub const O = switch (native_arch) {...@@ -520,6 +546,29 @@ pub const O = switch (native_arch) {
520 PATH: bool = false,546 PATH: bool = false,
521 _22: u10 = 0,547 _22: u10 = 0,
522 },548 },
549 .alpha => packed struct(u32) {
550 ACCMODE: ACCMODE = .RDONLY,
551 NONBLOCK: bool = false,
552 APPEND: bool = false,
553 _4: u5 = 0,
554 CREAT: bool = false,
555 TRUNC: bool = false,
556 EXCL: bool = false,
557 NOCTTY: bool = false,
558 _9: u1 = 0,
559 DSYNC: bool = false,
560 DIRECTORY: bool = false,
561 NOFOLLOW: bool = false,
562 LARGEFILE: bool = false,
563 _14: u1 = 0,
564 DIRECT: bool = false,
565 NOATIME: bool = false,
566 CLOEXEC: bool = false,
567 SYNC: bool = false,
568 PATH: bool = false,
569 TMPFILE: bool = false,
570 _: u7 = 0,
571 },
523 else => @compileError("missing std.os.linux.O constants for this architecture"),572 else => @compileError("missing std.os.linux.O constants for this architecture"),
524};573};
525574
...@@ -2217,7 +2266,10 @@ pub fn getsid(pid: pid_t) usize {...@@ -2217,7 +2266,10 @@ pub fn getsid(pid: pid_t) usize {
22172266
2218pub fn getpid() pid_t {2267pub fn getpid() pid_t {
2219 // Casts result to a pid_t, safety-checking >= 0, because getpid() cannot fail2268 // Casts result to a pid_t, safety-checking >= 0, because getpid() cannot fail
2220 return @intCast(@as(u32, @truncate(syscall0(.getpid))));2269 return @intCast(@as(u32, @truncate(syscall0(comptime switch (native_arch) {
2270 .alpha => .getxpid,
2271 else => .getpid,
2272 }))));
2221}2273}
22222274
2223pub fn getppid() pid_t {2275pub fn getppid() pid_t {
...@@ -4061,6 +4113,51 @@ pub const SIG = if (is_mips) enum(u32) {...@@ -4061,6 +4113,51 @@ pub const SIG = if (is_mips) enum(u32) {
4061 USR1 = 30,4113 USR1 = 30,
4062 USR2 = 31,4114 USR2 = 31,
4063 _,4115 _,
4116} else if (native_arch == .alpha) enum(u32) {
4117 pub const BLOCK = 1;
4118 pub const UNBLOCK = 2;
4119 pub const SETMASK = 3;
4120
4121 pub const ERR: ?Sigaction.handler_fn = @ptrFromInt(maxInt(usize));
4122 pub const DFL: ?Sigaction.handler_fn = @ptrFromInt(0);
4123 pub const IGN: ?Sigaction.handler_fn = @ptrFromInt(1);
4124
4125 pub const POLL: SIG = .IO;
4126 pub const PWR: SIG = .INFO;
4127 pub const IOT: SIG = .ABRT;
4128
4129 HUP = 1,
4130 INT = 2,
4131 QUIT = 3,
4132 ILL = 4,
4133 TRAP = 5,
4134 ABRT = 6,
4135 EMT = 7,
4136 FPE = 8,
4137 KILL = 9,
4138 BUS = 10,
4139 SEGV = 11,
4140 SYS = 12,
4141 PIPE = 13,
4142 ALRM = 14,
4143 TERM = 15,
4144 URG = 16,
4145 STOP = 17,
4146 TSTP = 18,
4147 CONT = 19,
4148 CHLD = 20,
4149 TTIN = 21,
4150 TTOU = 22,
4151 IO = 23,
4152 XCPU = 24,
4153 XFSZ = 25,
4154 VTALRM = 26,
4155 PROF = 27,
4156 WINCH = 28,
4157 INFO = 29,
4158 USR1 = 30,
4159 USR2 = 31,
4160 _,
4064} else enum(u32) {4161} else enum(u32) {
4065 pub const BLOCK = 0;4162 pub const BLOCK = 0;
4066 pub const UNBLOCK = 1;4163 pub const UNBLOCK = 1;
lib/std/os/linux/alpha.zig created+358
...@@ -0,0 +1,358 @@
1const builtin = @import("builtin");
2const std = @import("../../std.zig");
3const SYS = std.os.linux.SYS;
4
5pub fn syscall0(number: SYS) u64 {
6 return asm volatile (
7 \\ callsys
8 \\ beq $19, 1f
9 \\ negq $0, $0
10 \\1:
11 : [ret] "={$0}" (-> u64),
12 : [number] "{$0}" (number),
13 : .{
14 .r1 = true,
15 .r2 = true,
16 .r3 = true,
17 .r4 = true,
18 .r5 = true,
19 .r6 = true,
20 .r7 = true,
21 .r8 = true,
22 .r22 = true,
23 .r23 = true,
24 .r24 = true,
25 .r25 = true,
26 .r27 = true,
27 .r28 = true,
28 .memory = true,
29 .r16 = true,
30 .r17 = true,
31 .r18 = true,
32 .r20 = true,
33 .r21 = true,
34 });
35}
36
37pub fn syscall1(number: SYS, arg1: u64) u64 {
38 // These registers are both inputs and clobbers.
39 var r16_out: u64 = undefined;
40 return asm volatile (
41 \\ callsys
42 \\ beq $19, 1f
43 \\ negq $0, $0
44 \\1:
45 : [ret] "={$0}" (-> u64),
46 [r16_out] "={$16}" (r16_out),
47 : [number] "{$0}" (number),
48 [arg1] "{$16}" (arg1),
49 : .{
50 .r1 = true,
51 .r2 = true,
52 .r3 = true,
53 .r4 = true,
54 .r5 = true,
55 .r6 = true,
56 .r7 = true,
57 .r8 = true,
58 .r22 = true,
59 .r23 = true,
60 .r24 = true,
61 .r25 = true,
62 .r27 = true,
63 .r28 = true,
64 .memory = true,
65 .r17 = true,
66 .r18 = true,
67 .r20 = true,
68 .r21 = true,
69 });
70}
71
72pub fn syscall2(number: SYS, arg1: u64, arg2: u64) u64 {
73 // These registers are both inputs and clobbers.
74 var r16_out: u64 = undefined;
75 var r17_out: u64 = undefined;
76 return asm volatile (
77 \\ callsys
78 \\ beq $19, 1f
79 \\ negq $0, $0
80 \\1:
81 : [ret] "={$0}" (-> u64),
82 [r16_out] "={$16}" (r16_out),
83 [r17_out] "={$17}" (r17_out),
84 : [number] "{$0}" (number),
85 [arg1] "{$16}" (arg1),
86 [arg2] "{$17}" (arg2),
87 : .{
88 .r1 = true,
89 .r2 = true,
90 .r3 = true,
91 .r4 = true,
92 .r5 = true,
93 .r6 = true,
94 .r7 = true,
95 .r8 = true,
96 .r22 = true,
97 .r23 = true,
98 .r24 = true,
99 .r25 = true,
100 .r27 = true,
101 .r28 = true,
102 .memory = true,
103 .r18 = true,
104 .r20 = true,
105 .r21 = true,
106 });
107}
108
109pub fn syscall3(number: SYS, arg1: u64, arg2: u64, arg3: u64) u64 {
110 // These registers are both inputs and clobbers.
111 var r16_out: u64 = undefined;
112 var r17_out: u64 = undefined;
113 var r18_out: u64 = undefined;
114 return asm volatile (
115 \\ callsys
116 \\ beq $19, 1f
117 \\ negq $0, $0
118 \\1:
119 : [ret] "={$0}" (-> u64),
120 [r16_out] "={$16}" (r16_out),
121 [r17_out] "={$17}" (r17_out),
122 [r18_out] "={$18}" (r18_out),
123 : [number] "{$0}" (number),
124 [arg1] "{$16}" (arg1),
125 [arg2] "{$17}" (arg2),
126 [arg3] "{$18}" (arg3),
127 : .{
128 .r1 = true,
129 .r2 = true,
130 .r3 = true,
131 .r4 = true,
132 .r5 = true,
133 .r6 = true,
134 .r7 = true,
135 .r8 = true,
136 .r22 = true,
137 .r23 = true,
138 .r24 = true,
139 .r25 = true,
140 .r27 = true,
141 .r28 = true,
142 .memory = true,
143 .r20 = true,
144 .r21 = true,
145 });
146}
147
148pub fn syscall4(number: SYS, arg1: u64, arg2: u64, arg3: u64, arg4: u64) u64 {
149 // These registers are both inputs and clobbers.
150 var r16_out: u64 = undefined;
151 var r17_out: u64 = undefined;
152 var r18_out: u64 = undefined;
153 var r19_out: u64 = undefined;
154 return asm volatile (
155 \\ callsys
156 \\ beq $19, 1f
157 \\ negq $0, $0
158 \\1:
159 : [ret] "={$0}" (-> u64),
160 [r16_out] "={$16}" (r16_out),
161 [r17_out] "={$17}" (r17_out),
162 [r18_out] "={$18}" (r18_out),
163 [r19_out] "={$19}" (r19_out),
164 : [number] "{$0}" (number),
165 [arg1] "{$16}" (arg1),
166 [arg2] "{$17}" (arg2),
167 [arg3] "{$18}" (arg3),
168 [arg4] "{$19}" (arg4),
169 : .{
170 .r1 = true,
171 .r2 = true,
172 .r3 = true,
173 .r4 = true,
174 .r5 = true,
175 .r6 = true,
176 .r7 = true,
177 .r8 = true,
178 .r22 = true,
179 .r23 = true,
180 .r24 = true,
181 .r25 = true,
182 .r27 = true,
183 .r28 = true,
184 .memory = true,
185 .r20 = true,
186 .r21 = true,
187 });
188}
189
190pub fn syscall5(number: SYS, arg1: u64, arg2: u64, arg3: u64, arg4: u64, arg5: u64) u64 {
191 // These registers are both inputs and clobbers.
192 var r16_out: u64 = undefined;
193 var r17_out: u64 = undefined;
194 var r18_out: u64 = undefined;
195 var r19_out: u64 = undefined;
196 var r20_out: u64 = undefined;
197 return asm volatile (
198 \\ callsys
199 \\ beq $19, 1f
200 \\ negq $0, $0
201 \\1:
202 : [ret] "={$0}" (-> u64),
203 [r16_out] "={$16}" (r16_out),
204 [r17_out] "={$17}" (r17_out),
205 [r18_out] "={$18}" (r18_out),
206 [r19_out] "={$19}" (r19_out),
207 [r20_out] "={$20}" (r20_out),
208 : [number] "{$0}" (number),
209 [arg1] "{$16}" (arg1),
210 [arg2] "{$17}" (arg2),
211 [arg3] "{$18}" (arg3),
212 [arg4] "{$19}" (arg4),
213 [arg5] "{$20}" (arg5),
214 : .{
215 .r1 = true,
216 .r2 = true,
217 .r3 = true,
218 .r4 = true,
219 .r5 = true,
220 .r6 = true,
221 .r7 = true,
222 .r8 = true,
223 .r22 = true,
224 .r23 = true,
225 .r24 = true,
226 .r25 = true,
227 .r27 = true,
228 .r28 = true,
229 .memory = true,
230 .r21 = true,
231 });
232}
233
234pub fn syscall6(
235 number: SYS,
236 arg1: u64,
237 arg2: u64,
238 arg3: u64,
239 arg4: u64,
240 arg5: u64,
241 arg6: u64,
242) u64 {
243 // These registers are both inputs and clobbers.
244 var r16_out: u64 = undefined;
245 var r17_out: u64 = undefined;
246 var r18_out: u64 = undefined;
247 var r19_out: u64 = undefined;
248 var r20_out: u64 = undefined;
249 var r21_out: u64 = undefined;
250 return asm volatile (
251 \\ callsys
252 \\ beq $19, 1f
253 \\ negq $0, $0
254 \\1:
255 : [ret] "={$0}" (-> u64),
256 [r16_out] "={$16}" (r16_out),
257 [r17_out] "={$17}" (r17_out),
258 [r18_out] "={$18}" (r18_out),
259 [r19_out] "={$19}" (r19_out),
260 [r20_out] "={$20}" (r20_out),
261 [r21_out] "={$21}" (r21_out),
262 : [number] "{$0}" (number),
263 [arg1] "{$16}" (arg1),
264 [arg2] "{$17}" (arg2),
265 [arg3] "{$18}" (arg3),
266 [arg4] "{$19}" (arg4),
267 [arg5] "{$20}" (arg5),
268 [arg6] "{$21}" (arg6),
269 : .{
270 .r1 = true,
271 .r2 = true,
272 .r3 = true,
273 .r4 = true,
274 .r5 = true,
275 .r6 = true,
276 .r7 = true,
277 .r8 = true,
278 .r22 = true,
279 .r23 = true,
280 .r24 = true,
281 .r25 = true,
282 .r27 = true,
283 .r28 = true,
284 .memory = true,
285 });
286}
287
288pub fn clone() callconv(.naked) u64 {
289 // __clone(func, stack, flags, arg, ptid, tls, ctid)
290 // a0, a1, a2, a3, a4, a5, +0
291 //
292 // syscall(SYS_clone, flags, stack, ptid, ctid, tls)
293 // v0 a0, a1, a2, a3, a4
294 asm volatile (
295 // a0 = $16, a1 = $17, a2 = $18, a3 = $19,
296 // a4 = $20, a5 = $21, sp = $30, v0 = $0
297 \\ # Save function pointer and argument pointer on new thread stack
298 \\ ldi $1, -8
299 \\ and $17, $17, $1
300 \\ lda $17, -16($17)
301 \\ stq $16, 0($17)
302 \\ stq $19, 8($17)
303 \\
304 \\ # Shuffle (fn,sp,fl,arg,ptid,tls,ctid) to (fl,sp,ptid,ctid,tls)
305 \\ mov $18, $16
306 \\ mov $20, $18
307 \\ ldq $19, 0($30)
308 \\ mov $21, $20
309 \\
310 \\ # Actual syscall
311 \\ ldi $0, 312 # SYS_clone
312 \\ callsys
313 \\ beq $19, 1f
314 \\ negq $0, $0
315 \\ ret
316 \\1:
317 \\ beq $0, 2f
318 \\ ret
319 \\2:
320 );
321 if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (
322 // ra = $26
323 \\ .cfi_undefined $26
324 );
325 asm volatile (
326 // v0 = $0, t9 = $23, a0 = $16, ra = $26, sp = $30, fp = $15
327 \\ mov 0, $15
328 \\
329 \\ ldq $23, 0($30)
330 \\ ldq $16, 8($30)
331 \\ lda $30, 16($30)
332 \\ jsr $26, ($23)
333 \\
334 \\ mov $0, $16
335 \\ ldi $0, 1 # SYS_EXIT
336 \\ callsys
337 );
338}
339
340pub fn restore() noreturn {
341 asm volatile (
342 // v0 = $0, a0 = $16, sp = $30
343 \\ mov $30, $16
344 \\ ldi $0, 103 # SIGRETURN
345 \\ callsys
346 );
347}
348
349pub fn restore_rt() noreturn {
350 asm volatile (
351 // v0 = $0, a0 = $16, sp = $30
352 \\ mov $30, $16
353 \\ ldi $0, 351 # RT_SIGRETURN
354 \\ callsys
355 );
356}
357
358pub const VDSO = void;
lib/std/os/linux/syscalls.zig+502
...@@ -5851,6 +5851,508 @@ pub const Xtensa = enum(usize) {...@@ -5851,6 +5851,508 @@ pub const Xtensa = enum(usize) {
5851 rseq_slice_yield = 471,5851 rseq_slice_yield = 471,
5852};5852};
58535853
5854pub const Alpha = enum(usize) {
5855 osf_syscall = 0,
5856 exit = 1,
5857 fork = 2,
5858 read = 3,
5859 write = 4,
5860 osf_old_open = 5,
5861 close = 6,
5862 osf_wait4 = 7,
5863 osf_old_creat = 8,
5864 link = 9,
5865 unlink = 10,
5866 osf_execve = 11,
5867 chdir = 12,
5868 fchdir = 13,
5869 mknod = 14,
5870 chmod = 15,
5871 chown = 16,
5872 brk = 17,
5873 osf_getfsstat = 18,
5874 lseek = 19,
5875 getxpid = 20,
5876 osf_mount = 21,
5877 umount2 = 22,
5878 setuid = 23,
5879 getxuid = 24,
5880 exec_with_loader = 25,
5881 ptrace = 26,
5882 osf_nrecvmsg = 27,
5883 osf_nsendmsg = 28,
5884 osf_nrecvfrom = 29,
5885 osf_naccept = 30,
5886 osf_ngetpeername = 31,
5887 osf_ngetsockname = 32,
5888 access = 33,
5889 osf_chflags = 34,
5890 osf_fchflags = 35,
5891 sync = 36,
5892 kill = 37,
5893 osf_old_stat = 38,
5894 setpgid = 39,
5895 osf_old_lstat = 40,
5896 dup = 41,
5897 pipe = 42,
5898 osf_set_program_attributes = 43,
5899 osf_profil = 44,
5900 open = 45,
5901 osf_old_sigaction = 46,
5902 getxgid = 47,
5903 osf_sigprocmask = 48,
5904 osf_getlogin = 49,
5905 osf_setlogin = 50,
5906 acct = 51,
5907 sigpending = 52,
5908 ioctl = 54,
5909 osf_reboot = 55,
5910 osf_revoke = 56,
5911 symlink = 57,
5912 readlink = 58,
5913 execve = 59,
5914 umask = 60,
5915 chroot = 61,
5916 osf_old_fstat = 62,
5917 getpgrp = 63,
5918 getpagesize = 64,
5919 osf_mremap = 65,
5920 vfork = 66,
5921 stat = 67,
5922 lstat = 68,
5923 osf_sbrk = 69,
5924 osf_sstk = 70,
5925 mmap = 71,
5926 osf_old_vadvise = 72,
5927 munmap = 73,
5928 mprotect = 74,
5929 madvise = 75,
5930 vhangup = 76,
5931 osf_kmodcall = 77,
5932 osf_mincore = 78,
5933 getgroups = 79,
5934 setgroups = 80,
5935 osf_old_getpgrp = 81,
5936 setpgrp = 82,
5937 osf_setitimer = 83,
5938 osf_old_wait = 84,
5939 osf_table = 85,
5940 osf_getitimer = 86,
5941 gethostname = 87,
5942 sethostname = 88,
5943 getdtablesize = 89,
5944 dup2 = 90,
5945 fstat = 91,
5946 fcntl = 92,
5947 osf_select = 93,
5948 poll = 94,
5949 fsync = 95,
5950 setpriority = 96,
5951 socket = 97,
5952 connect = 98,
5953 accept = 99,
5954 getpriority = 100,
5955 send = 101,
5956 recv = 102,
5957 sigreturn = 103,
5958 bind = 104,
5959 setsockopt = 105,
5960 listen = 106,
5961 osf_plock = 107,
5962 osf_old_sigvec = 108,
5963 osf_old_sigblock = 109,
5964 osf_old_sigsetmask = 110,
5965 sigsuspend = 111,
5966 osf_sigstack = 112,
5967 recvmsg = 113,
5968 sendmsg = 114,
5969 osf_old_vtrace = 115,
5970 osf_gettimeofday = 116,
5971 osf_getrusage = 117,
5972 getsockopt = 118,
5973 readv = 120,
5974 writev = 121,
5975 osf_settimeofday = 122,
5976 fchown = 123,
5977 fchmod = 124,
5978 recvfrom = 125,
5979 setreuid = 126,
5980 setregid = 127,
5981 rename = 128,
5982 truncate = 129,
5983 ftruncate = 130,
5984 flock = 131,
5985 setgid = 132,
5986 sendto = 133,
5987 shutdown = 134,
5988 socketpair = 135,
5989 mkdir = 136,
5990 rmdir = 137,
5991 osf_utimes = 138,
5992 osf_old_sigreturn = 139,
5993 osf_adjtime = 140,
5994 getpeername = 141,
5995 osf_gethostid = 142,
5996 osf_sethostid = 143,
5997 getrlimit = 144,
5998 setrlimit = 145,
5999 osf_old_killpg = 146,
6000 setsid = 147,
6001 quotactl = 148,
6002 osf_oldquota = 149,
6003 getsockname = 150,
6004 osf_pid_block = 153,
6005 osf_pid_unblock = 154,
6006 sigaction = 156,
6007 osf_sigwaitprim = 157,
6008 osf_nfssvc = 158,
6009 osf_getdirentries = 159,
6010 osf_statfs = 160,
6011 osf_fstatfs = 161,
6012 osf_asynch_daemon = 163,
6013 osf_getfh = 164,
6014 osf_getdomainname = 165,
6015 setdomainname = 166,
6016 osf_exportfs = 169,
6017 osf_alt_plock = 181,
6018 osf_getmnt = 184,
6019 osf_alt_sigpending = 187,
6020 osf_alt_setsid = 188,
6021 osf_swapon = 199,
6022 msgctl = 200,
6023 msgget = 201,
6024 msgrcv = 202,
6025 msgsnd = 203,
6026 semctl = 204,
6027 semget = 205,
6028 semop = 206,
6029 osf_utsname = 207,
6030 lchown = 208,
6031 shmat = 209,
6032 shmctl = 210,
6033 shmdt = 211,
6034 shmget = 212,
6035 osf_mvalid = 213,
6036 osf_getaddressconf = 214,
6037 osf_msleep = 215,
6038 osf_mwakeup = 216,
6039 msync = 217,
6040 osf_signal = 218,
6041 osf_utc_gettime = 219,
6042 osf_utc_adjtime = 220,
6043 osf_security = 222,
6044 osf_kloadcall = 223,
6045 osf_stat = 224,
6046 osf_lstat = 225,
6047 osf_fstat = 226,
6048 osf_statfs64 = 227,
6049 osf_fstatfs64 = 228,
6050 getpgid = 233,
6051 getsid = 234,
6052 sigaltstack = 235,
6053 osf_waitid = 236,
6054 osf_priocntlset = 237,
6055 osf_sigsendset = 238,
6056 osf_set_speculative = 239,
6057 osf_msfs_syscall = 240,
6058 osf_sysinfo = 241,
6059 osf_uadmin = 242,
6060 osf_fuser = 243,
6061 osf_proplist_syscall = 244,
6062 osf_ntp_adjtime = 245,
6063 osf_ntp_gettime = 246,
6064 osf_pathconf = 247,
6065 osf_fpathconf = 248,
6066 osf_uswitch = 250,
6067 osf_usleep_thread = 251,
6068 osf_audcntl = 252,
6069 osf_audgen = 253,
6070 sysfs = 254,
6071 osf_subsys_info = 255,
6072 osf_getsysinfo = 256,
6073 osf_setsysinfo = 257,
6074 osf_afs_syscall = 258,
6075 osf_swapctl = 259,
6076 osf_memcntl = 260,
6077 osf_fdatasync = 261,
6078 bdflush = 300,
6079 sethae = 301,
6080 mount = 302,
6081 old_adjtimex = 303,
6082 swapoff = 304,
6083 getdents = 305,
6084 create_module = 306,
6085 init_module = 307,
6086 delete_module = 308,
6087 get_kernel_syms = 309,
6088 syslog = 310,
6089 reboot = 311,
6090 clone = 312,
6091 uselib = 313,
6092 mlock = 314,
6093 munlock = 315,
6094 mlockall = 316,
6095 munlockall = 317,
6096 sysinfo = 318,
6097 sysctl = 319,
6098 oldumount = 321,
6099 swapon = 322,
6100 times = 323,
6101 personality = 324,
6102 setfsuid = 325,
6103 setfsgid = 326,
6104 ustat = 327,
6105 statfs = 328,
6106 fstatfs = 329,
6107 sched_setparam = 330,
6108 sched_getparam = 331,
6109 sched_setscheduler = 332,
6110 sched_getscheduler = 333,
6111 sched_yield = 334,
6112 sched_get_priority_max = 335,
6113 sched_get_priority_min = 336,
6114 sched_rr_get_interval = 337,
6115 afs_syscall = 338,
6116 uname = 339,
6117 nanosleep = 340,
6118 mremap = 341,
6119 nfsservctl = 342,
6120 setresuid = 343,
6121 getresuid = 344,
6122 pciconfig_read = 345,
6123 pciconfig_write = 346,
6124 query_module = 347,
6125 prctl = 348,
6126 pread64 = 349,
6127 pwrite64 = 350,
6128 rt_sigreturn = 351,
6129 rt_sigaction = 352,
6130 rt_sigprocmask = 353,
6131 rt_sigpending = 354,
6132 rt_sigtimedwait = 355,
6133 rt_sigqueueinfo = 356,
6134 rt_sigsuspend = 357,
6135 select = 358,
6136 gettimeofday = 359,
6137 settimeofday = 360,
6138 getitimer = 361,
6139 setitimer = 362,
6140 utimes = 363,
6141 getrusage = 364,
6142 wait4 = 365,
6143 adjtimex = 366,
6144 getcwd = 367,
6145 capget = 368,
6146 capset = 369,
6147 sendfile = 370,
6148 setresgid = 371,
6149 getresgid = 372,
6150 dipc = 373,
6151 pivot_root = 374,
6152 mincore = 375,
6153 pciconfig_iobase = 376,
6154 getdents64 = 377,
6155 gettid = 378,
6156 readahead = 379,
6157 tkill = 381,
6158 setxattr = 382,
6159 lsetxattr = 383,
6160 fsetxattr = 384,
6161 getxattr = 385,
6162 lgetxattr = 386,
6163 fgetxattr = 387,
6164 listxattr = 388,
6165 llistxattr = 389,
6166 flistxattr = 390,
6167 removexattr = 391,
6168 lremovexattr = 392,
6169 fremovexattr = 393,
6170 futex = 394,
6171 sched_setaffinity = 395,
6172 sched_getaffinity = 396,
6173 tuxcall = 397,
6174 io_setup = 398,
6175 io_destroy = 399,
6176 io_getevents = 400,
6177 io_submit = 401,
6178 io_cancel = 402,
6179 exit_group = 405,
6180 lookup_dcookie = 406,
6181 epoll_create = 407,
6182 epoll_ctl = 408,
6183 epoll_wait = 409,
6184 remap_file_pages = 410,
6185 set_tid_address = 411,
6186 restart_syscall = 412,
6187 fadvise64 = 413,
6188 timer_create = 414,
6189 timer_settime = 415,
6190 timer_gettime = 416,
6191 timer_getoverrun = 417,
6192 timer_delete = 418,
6193 clock_settime = 419,
6194 clock_gettime = 420,
6195 clock_getres = 421,
6196 clock_nanosleep = 422,
6197 semtimedop = 423,
6198 tgkill = 424,
6199 stat64 = 425,
6200 lstat64 = 426,
6201 fstat64 = 427,
6202 vserver = 428,
6203 mbind = 429,
6204 get_mempolicy = 430,
6205 set_mempolicy = 431,
6206 mq_open = 432,
6207 mq_unlink = 433,
6208 mq_timedsend = 434,
6209 mq_timedreceive = 435,
6210 mq_notify = 436,
6211 mq_getsetattr = 437,
6212 waitid = 438,
6213 add_key = 439,
6214 request_key = 440,
6215 keyctl = 441,
6216 ioprio_set = 442,
6217 ioprio_get = 443,
6218 inotify_init = 444,
6219 inotify_add_watch = 445,
6220 inotify_rm_watch = 446,
6221 fdatasync = 447,
6222 kexec_load = 448,
6223 migrate_pages = 449,
6224 openat = 450,
6225 mkdirat = 451,
6226 mknodat = 452,
6227 fchownat = 453,
6228 futimesat = 454,
6229 fstatat64 = 455,
6230 unlinkat = 456,
6231 renameat = 457,
6232 linkat = 458,
6233 symlinkat = 459,
6234 readlinkat = 460,
6235 fchmodat = 461,
6236 faccessat = 462,
6237 pselect6 = 463,
6238 ppoll = 464,
6239 unshare = 465,
6240 set_robust_list = 466,
6241 get_robust_list = 467,
6242 splice = 468,
6243 sync_file_range = 469,
6244 tee = 470,
6245 vmsplice = 471,
6246 move_pages = 472,
6247 getcpu = 473,
6248 epoll_pwait = 474,
6249 utimensat = 475,
6250 signalfd = 476,
6251 timerfd = 477,
6252 eventfd = 478,
6253 recvmmsg = 479,
6254 fallocate = 480,
6255 timerfd_create = 481,
6256 timerfd_settime = 482,
6257 timerfd_gettime = 483,
6258 signalfd4 = 484,
6259 eventfd2 = 485,
6260 epoll_create1 = 486,
6261 dup3 = 487,
6262 pipe2 = 488,
6263 inotify_init1 = 489,
6264 preadv = 490,
6265 pwritev = 491,
6266 rt_tgsigqueueinfo = 492,
6267 perf_event_open = 493,
6268 fanotify_init = 494,
6269 fanotify_mark = 495,
6270 prlimit64 = 496,
6271 name_to_handle_at = 497,
6272 open_by_handle_at = 498,
6273 clock_adjtime = 499,
6274 syncfs = 500,
6275 setns = 501,
6276 accept4 = 502,
6277 sendmmsg = 503,
6278 process_vm_readv = 504,
6279 process_vm_writev = 505,
6280 kcmp = 506,
6281 finit_module = 507,
6282 sched_setattr = 508,
6283 sched_getattr = 509,
6284 renameat2 = 510,
6285 getrandom = 511,
6286 memfd_create = 512,
6287 execveat = 513,
6288 seccomp = 514,
6289 bpf = 515,
6290 userfaultfd = 516,
6291 membarrier = 517,
6292 mlock2 = 518,
6293 copy_file_range = 519,
6294 preadv2 = 520,
6295 pwritev2 = 521,
6296 statx = 522,
6297 io_pgetevents = 523,
6298 pkey_mprotect = 524,
6299 pkey_alloc = 525,
6300 pkey_free = 526,
6301 rseq = 527,
6302 statfs64 = 528,
6303 fstatfs64 = 529,
6304 getegid = 530,
6305 geteuid = 531,
6306 getppid = 532,
6307 pidfd_send_signal = 534,
6308 io_uring_setup = 535,
6309 io_uring_enter = 536,
6310 io_uring_register = 537,
6311 open_tree = 538,
6312 move_mount = 539,
6313 fsopen = 540,
6314 fsconfig = 541,
6315 fsmount = 542,
6316 fspick = 543,
6317 pidfd_open = 544,
6318 clone3 = 545,
6319 close_range = 546,
6320 openat2 = 547,
6321 pidfd_getfd = 548,
6322 faccessat2 = 549,
6323 process_madvise = 550,
6324 epoll_pwait2 = 551,
6325 mount_setattr = 552,
6326 quotactl_fd = 553,
6327 landlock_create_ruleset = 554,
6328 landlock_add_rule = 555,
6329 landlock_restrict_self = 556,
6330 process_mrelease = 558,
6331 futex_waitv = 559,
6332 set_mempolicy_home_node = 560,
6333 cachestat = 561,
6334 fchmodat2 = 562,
6335 map_shadow_stack = 563,
6336 futex_wake = 564,
6337 futex_wait = 565,
6338 futex_requeue = 566,
6339 statmount = 567,
6340 listmount = 568,
6341 lsm_get_self_attr = 569,
6342 lsm_set_self_attr = 570,
6343 lsm_list_modules = 571,
6344 mseal = 572,
6345 setxattrat = 573,
6346 getxattrat = 574,
6347 listxattrat = 575,
6348 removexattrat = 576,
6349 open_tree_attr = 577,
6350 file_getattr = 578,
6351 file_setattr = 579,
6352 listns = 580,
6353 rseq_slice_yield = 581,
6354};
6355
5854pub const Arm64 = enum(usize) {6356pub const Arm64 = enum(usize) {
5855 io_setup = 0,6357 io_setup = 0,
5856 io_destroy = 1,6358 io_destroy = 1,
lib/std/os/linux/tls.zig+1-1
...@@ -256,7 +256,7 @@ pub fn setThreadPointer(addr: usize) void {...@@ -256,7 +256,7 @@ pub fn setThreadPointer(addr: usize) void {
256 },256 },
257 .alpha => {257 .alpha => {
258 asm volatile (258 asm volatile (
259 \\ lda a0, %[addr]259 \\ lda $16, 0(%[addr])
260 \\ wruniq260 \\ wruniq
261 :261 :
262 : [addr] "r" (addr),262 : [addr] "r" (addr),
tools/generate_linux_syscalls.zig+1
...@@ -156,6 +156,7 @@ const architectures: []const Arch = &.{...@@ -156,6 +156,7 @@ const architectures: []const Arch = &.{
156 .{ .@"var" = "PowerPC64", .table = .{ .specific = "arch/powerpc/kernel/syscalls/syscall.tbl" }, .abi = &.{ .common, .@"64", .nospu } },156 .{ .@"var" = "PowerPC64", .table = .{ .specific = "arch/powerpc/kernel/syscalls/syscall.tbl" }, .abi = &.{ .common, .@"64", .nospu } },
157 .{ .@"var" = "S390x", .table = .{ .specific = "arch/s390/kernel/syscalls/syscall.tbl" }, .abi = &.{ .common, .@"64" } },157 .{ .@"var" = "S390x", .table = .{ .specific = "arch/s390/kernel/syscalls/syscall.tbl" }, .abi = &.{ .common, .@"64" } },
158 .{ .@"var" = "Xtensa", .table = .{ .specific = "arch/xtensa/kernel/syscalls/syscall.tbl" } },158 .{ .@"var" = "Xtensa", .table = .{ .specific = "arch/xtensa/kernel/syscalls/syscall.tbl" } },
159 .{ .@"var" = "Alpha", .table = .{ .specific = "arch/alpha/kernel/syscalls/syscall.tbl" } },
159 .{ .@"var" = "Arm64", .table = .generic, .abi = &.{ .common, .@"64", .renameat, .rlimit, .memfd_secret } },160 .{ .@"var" = "Arm64", .table = .generic, .abi = &.{ .common, .@"64", .renameat, .rlimit, .memfd_secret } },
160 .{ .@"var" = "RiscV32", .table = .generic, .abi = &.{ .common, .@"32", .riscv, .memfd_secret } },161 .{ .@"var" = "RiscV32", .table = .generic, .abi = &.{ .common, .@"32", .riscv, .memfd_secret } },
161 .{ .@"var" = "RiscV64", .table = .generic, .abi = &.{ .common, .@"64", .riscv, .rlimit, .memfd_secret } },162 .{ .@"var" = "RiscV64", .table = .generic, .abi = &.{ .common, .@"64", .riscv, .rlimit, .memfd_secret } },