authorgravatar for alex@alexrp.comAlex Rønne Petersen <alex@alexrp.com> 2026-08-09 17:05:48+02:00
committergravatar for alex@alexrp.comAlex Rønne Petersen <alex@alexrp.com> 2026-08-09 17:53:03+02:00
log516040582da20208d2026996c0ca9cf4c1fc20be
tree8ad0c419222004e01bf984c552239abf2d8b4706
parent6d2c427635dfcdbe5867c5af5194cbe175b85003
signaturebadge-check Signed by SSH key SHA256:7B/LJ7bpR1eX8aCXSr4mtd5M45VMPKcx9zY8e95b5QM

std.os.linux: fix some bonkers indentation in inline assembly

11 files changed, 290 insertions(+), 291 deletions(-)

lib/std/os/linux/aarch64.zig+21-21
...@@ -116,36 +116,36 @@ pub fn clone() callconv(.naked) u64 {...@@ -116,36 +116,36 @@ pub fn clone() callconv(.naked) u64 {
116 // syscall(SYS_clone, flags, stack, ptid, tls, ctid)116 // syscall(SYS_clone, flags, stack, ptid, tls, ctid)
117 // x8, x0, x1, x2, x3, x4117 // x8, x0, x1, x2, x3, x4
118 asm volatile (118 asm volatile (
119 \\ // align stack and save func,arg119 \\ // align stack and save func,arg
120 \\ and x1,x1,#-16120 \\ and x1,x1,#-16
121 \\ stp x0,x3,[x1,#-16]!121 \\ stp x0,x3,[x1,#-16]!
122 \\122 \\
123 \\ // syscall123 \\ // syscall
124 \\ uxtw x0,w2124 \\ uxtw x0,w2
125 \\ mov x2,x4125 \\ mov x2,x4
126 \\ mov x3,x5126 \\ mov x3,x5
127 \\ mov x4,x6127 \\ mov x4,x6
128 \\ mov x8,#220 // SYS_clone128 \\ mov x8,#220 // SYS_clone
129 \\ svc #0129 \\ svc #0
130 \\130 \\
131 \\ cbz x0,1f131 \\ cbz x0,1f
132 \\ // parent132 \\ // parent
133 \\ ret133 \\ ret
134 \\134 \\
135 \\ // child135 \\ // child
136 \\1:136 \\1:
137 );137 );
138 if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (138 if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (
139 \\ .cfi_undefined lr139 \\ .cfi_undefined lr
140 );140 );
141 asm volatile (141 asm volatile (
142 \\ mov fp, 0142 \\ mov fp, 0
143 \\ mov lr, 0143 \\ mov lr, 0
144 \\144 \\
145 \\ ldp x1,x0,[sp],#16145 \\ ldp x1,x0,[sp],#16
146 \\ blr x1146 \\ blr x1
147 \\ mov x8,#93 // SYS_exit147 \\ mov x8,#93 // SYS_exit
148 \\ svc #0148 \\ svc #0
149 );149 );
150}150}
151151
lib/std/os/linux/arc.zig+23-23
...@@ -116,37 +116,37 @@ pub fn clone() callconv(.naked) u32 {...@@ -116,37 +116,37 @@ pub fn clone() callconv(.naked) u32 {
116 // syscall(SYS_clone, flags, stack, ptid, tls, ctid)116 // syscall(SYS_clone, flags, stack, ptid, tls, ctid)
117 // r8 r0, r1, r2, r3, r4117 // r8 r0, r1, r2, r3, r4
118 asm volatile (118 asm volatile (
119 \\ // Align stack pointer119 \\ // Align stack pointer
120 \\ and r1, r1, -16120 \\ and r1, r1, -16
121 \\ mov r10, r0121 \\ mov r10, r0
122 \\ mov r11, r3122 \\ mov r11, r3
123 \\ // Setup the arguments123 \\ // Setup the arguments
124 \\ mov r0, r2124 \\ mov r0, r2
125 \\ mov r2, r4125 \\ mov r2, r4
126 \\ mov r3, r5126 \\ mov r3, r5
127 \\ mov r4, r6127 \\ mov r4, r6
128 \\ mov r8, 220 // SYS_clone128 \\ mov r8, 220 // SYS_clone
129 \\ trap_s 0129 \\ trap_s 0
130 \\ cmp r0, 0130 \\ cmp r0, 0
131 \\ beq 1f131 \\ beq 1f
132 \\ j [blink]132 \\ j [blink]
133 \\ // Child133 \\ // Child
134 \\ 1: 134 \\1:
135 );135 );
136 if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (136 if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (
137 \\ .cfi_undefined blink137 \\ .cfi_undefined blink
138 );138 );
139139
140 asm volatile (140 asm volatile (
141 \\ mov fp, 0141 \\ mov fp, 0
142 \\ mov blink, 0142 \\ mov blink, 0
143 \\143 \\
144 \\ mov r0, r11144 \\ mov r0, r11
145 \\ jl [r10]145 \\ jl [r10]
146 \\146 \\
147 \\ // Exit147 \\ // Exit
148 \\ mov r8, 93 // SYS_exit148 \\ mov r8, 93 // SYS_exit
149 \\ trap_s 0149 \\ trap_s 0
150 );150 );
151}151}
152152
lib/std/os/linux/arm.zig+25-23
...@@ -116,32 +116,34 @@ pub fn clone() callconv(.naked) u32 {...@@ -116,32 +116,34 @@ pub fn clone() callconv(.naked) u32 {
116 // syscall(SYS_clone, flags, stack, ptid, tls, ctid)116 // syscall(SYS_clone, flags, stack, ptid, tls, ctid)
117 // r7 r0, r1, r2, r3, r4117 // r7 r0, r1, r2, r3, r4
118 asm volatile (118 asm volatile (
119 \\ stmfd sp!,{r4,r5,r6,r7}119 \\ stmfd sp!,{r4,r5,r6,r7}
120 \\ mov r7,#120 // SYS_clone120 \\ mov r7,#120 // SYS_clone
121 \\ mov r6,r3121 \\ mov r6,r3
122 \\ mov r5,r0122 \\ mov r5,r0
123 \\ mov r0,r2123 \\ mov r0,r2
124 \\ and r1,r1,#-16124 \\ and r1,r1,#-16
125 \\ ldr r2,[sp,#16]125 \\ ldr r2,[sp,#16]
126 \\ ldr r3,[sp,#20]126 \\ ldr r3,[sp,#20]
127 \\ ldr r4,[sp,#24]127 \\ ldr r4,[sp,#24]
128 \\ svc 0128 \\ svc 0
129 \\ tst r0,r0129 \\ tst r0,r0
130 \\ beq 1f130 \\ beq 1f
131 \\ ldmfd sp!,{r4,r5,r6,r7}131 \\ ldmfd sp!,{r4,r5,r6,r7}
132 \\ bx lr132 \\ bx lr
133 \\133 \\
134 \\ // https://github.com/llvm/llvm-project/issues/115891134 \\ // https://github.com/llvm/llvm-project/issues/115891
135 \\1: mov r7, #0135 \\1:
136 \\ mov r11, #0136 \\ mov r7, #0
137 \\ mov lr, #0137 \\ mov r11, #0
138 \\ mov lr, #0
138 \\139 \\
139 \\ mov r0,r6140 \\ mov r0,r6
140 \\ bl 3f141 \\ bl 3f
141 \\ mov r7,#1 // SYS_exit142 \\ mov r7,#1 // SYS_exit
142 \\ svc 0143 \\ svc 0
143 \\144 \\
144 \\3: bx r5145 \\3:
146 \\ bx r5
145 );147 );
146}148}
147149
lib/std/os/linux/powerpc.zig+7-7
...@@ -16,7 +16,7 @@ pub fn syscall0(...@@ -16,7 +16,7 @@ pub fn syscall0(
16 \\ sc16 \\ sc
17 \\ bns+ 1f17 \\ bns+ 1f
18 \\ neg 3, 318 \\ neg 3, 3
19 \\ 1:19 \\1:
20 : [ret] "={r3}" (-> u32),20 : [ret] "={r3}" (-> u32),
21 [r0_out] "={r0}" (r0_out),21 [r0_out] "={r0}" (r0_out),
22 : [number] "{r0}" (@backingInt(number)),22 : [number] "{r0}" (@backingInt(number)),
...@@ -33,7 +33,7 @@ pub fn syscall1(...@@ -33,7 +33,7 @@ pub fn syscall1(
33 \\ sc33 \\ sc
34 \\ bns+ 1f34 \\ bns+ 1f
35 \\ neg 3, 335 \\ neg 3, 3
36 \\ 1:36 \\1:
37 : [ret] "={r3}" (-> u32),37 : [ret] "={r3}" (-> u32),
38 [r0_out] "={r0}" (r0_out),38 [r0_out] "={r0}" (r0_out),
39 : [number] "{r0}" (@backingInt(number)),39 : [number] "{r0}" (@backingInt(number)),
...@@ -53,7 +53,7 @@ pub fn syscall2(...@@ -53,7 +53,7 @@ pub fn syscall2(
53 \\ sc53 \\ sc
54 \\ bns+ 1f54 \\ bns+ 1f
55 \\ neg 3, 355 \\ neg 3, 3
56 \\ 1:56 \\1:
57 : [ret] "={r3}" (-> u32),57 : [ret] "={r3}" (-> u32),
58 [r0_out] "={r0}" (r0_out),58 [r0_out] "={r0}" (r0_out),
59 [r4_out] "={r4}" (r4_out),59 [r4_out] "={r4}" (r4_out),
...@@ -77,7 +77,7 @@ pub fn syscall3(...@@ -77,7 +77,7 @@ pub fn syscall3(
77 \\ sc77 \\ sc
78 \\ bns+ 1f78 \\ bns+ 1f
79 \\ neg 3, 379 \\ neg 3, 3
80 \\ 1:80 \\1:
81 : [ret] "={r3}" (-> u32),81 : [ret] "={r3}" (-> u32),
82 [r0_out] "={r0}" (r0_out),82 [r0_out] "={r0}" (r0_out),
83 [r4_out] "={r4}" (r4_out),83 [r4_out] "={r4}" (r4_out),
...@@ -105,7 +105,7 @@ pub fn syscall4(...@@ -105,7 +105,7 @@ pub fn syscall4(
105 \\ sc105 \\ sc
106 \\ bns+ 1f106 \\ bns+ 1f
107 \\ neg 3, 3107 \\ neg 3, 3
108 \\ 1:108 \\1:
109 : [ret] "={r3}" (-> u32),109 : [ret] "={r3}" (-> u32),
110 [r0_out] "={r0}" (r0_out),110 [r0_out] "={r0}" (r0_out),
111 [r4_out] "={r4}" (r4_out),111 [r4_out] "={r4}" (r4_out),
...@@ -137,7 +137,7 @@ pub fn syscall5(...@@ -137,7 +137,7 @@ pub fn syscall5(
137 \\ sc137 \\ sc
138 \\ bns+ 1f138 \\ bns+ 1f
139 \\ neg 3, 3139 \\ neg 3, 3
140 \\ 1:140 \\1:
141 : [ret] "={r3}" (-> u32),141 : [ret] "={r3}" (-> u32),
142 [r0_out] "={r0}" (r0_out),142 [r0_out] "={r0}" (r0_out),
143 [r4_out] "={r4}" (r4_out),143 [r4_out] "={r4}" (r4_out),
...@@ -173,7 +173,7 @@ pub fn syscall6(...@@ -173,7 +173,7 @@ pub fn syscall6(
173 \\ sc173 \\ sc
174 \\ bns+ 1f174 \\ bns+ 1f
175 \\ neg 3, 3175 \\ neg 3, 3
176 \\ 1:176 \\1:
177 : [ret] "={r3}" (-> u32),177 : [ret] "={r3}" (-> u32),
178 [r0_out] "={r0}" (r0_out),178 [r0_out] "={r0}" (r0_out),
179 [r4_out] "={r4}" (r4_out),179 [r4_out] "={r4}" (r4_out),
lib/std/os/linux/powerpc64.zig+40-40
...@@ -16,7 +16,7 @@ pub fn syscall0(...@@ -16,7 +16,7 @@ pub fn syscall0(
16 \\ sc16 \\ sc
17 \\ bns+ 1f17 \\ bns+ 1f
18 \\ neg 3, 318 \\ neg 3, 3
19 \\ 1:19 \\1:
20 : [ret] "={r3}" (-> u64),20 : [ret] "={r3}" (-> u64),
21 [r0_out] "={r0}" (r0_out),21 [r0_out] "={r0}" (r0_out),
22 : [number] "{r0}" (@backingInt(number)),22 : [number] "{r0}" (@backingInt(number)),
...@@ -33,7 +33,7 @@ pub fn syscall1(...@@ -33,7 +33,7 @@ pub fn syscall1(
33 \\ sc33 \\ sc
34 \\ bns+ 1f34 \\ bns+ 1f
35 \\ neg 3, 335 \\ neg 3, 3
36 \\ 1:36 \\1:
37 : [ret] "={r3}" (-> u64),37 : [ret] "={r3}" (-> u64),
38 [r0_out] "={r0}" (r0_out),38 [r0_out] "={r0}" (r0_out),
39 : [number] "{r0}" (@backingInt(number)),39 : [number] "{r0}" (@backingInt(number)),
...@@ -53,7 +53,7 @@ pub fn syscall2(...@@ -53,7 +53,7 @@ pub fn syscall2(
53 \\ sc53 \\ sc
54 \\ bns+ 1f54 \\ bns+ 1f
55 \\ neg 3, 355 \\ neg 3, 3
56 \\ 1:56 \\1:
57 : [ret] "={r3}" (-> u64),57 : [ret] "={r3}" (-> u64),
58 [r0_out] "={r0}" (r0_out),58 [r0_out] "={r0}" (r0_out),
59 [r4_out] "={r4}" (r4_out),59 [r4_out] "={r4}" (r4_out),
...@@ -77,7 +77,7 @@ pub fn syscall3(...@@ -77,7 +77,7 @@ pub fn syscall3(
77 \\ sc77 \\ sc
78 \\ bns+ 1f78 \\ bns+ 1f
79 \\ neg 3, 379 \\ neg 3, 3
80 \\ 1:80 \\1:
81 : [ret] "={r3}" (-> u64),81 : [ret] "={r3}" (-> u64),
82 [r0_out] "={r0}" (r0_out),82 [r0_out] "={r0}" (r0_out),
83 [r4_out] "={r4}" (r4_out),83 [r4_out] "={r4}" (r4_out),
...@@ -105,7 +105,7 @@ pub fn syscall4(...@@ -105,7 +105,7 @@ pub fn syscall4(
105 \\ sc105 \\ sc
106 \\ bns+ 1f106 \\ bns+ 1f
107 \\ neg 3, 3107 \\ neg 3, 3
108 \\ 1:108 \\1:
109 : [ret] "={r3}" (-> u64),109 : [ret] "={r3}" (-> u64),
110 [r0_out] "={r0}" (r0_out),110 [r0_out] "={r0}" (r0_out),
111 [r4_out] "={r4}" (r4_out),111 [r4_out] "={r4}" (r4_out),
...@@ -137,7 +137,7 @@ pub fn syscall5(...@@ -137,7 +137,7 @@ pub fn syscall5(
137 \\ sc137 \\ sc
138 \\ bns+ 1f138 \\ bns+ 1f
139 \\ neg 3, 3139 \\ neg 3, 3
140 \\ 1:140 \\1:
141 : [ret] "={r3}" (-> u64),141 : [ret] "={r3}" (-> u64),
142 [r0_out] "={r0}" (r0_out),142 [r0_out] "={r0}" (r0_out),
143 [r4_out] "={r4}" (r4_out),143 [r4_out] "={r4}" (r4_out),
...@@ -173,7 +173,7 @@ pub fn syscall6(...@@ -173,7 +173,7 @@ pub fn syscall6(
173 \\ sc173 \\ sc
174 \\ bns+ 1f174 \\ bns+ 1f
175 \\ neg 3, 3175 \\ neg 3, 3
176 \\ 1:176 \\1:
177 : [ret] "={r3}" (-> u64),177 : [ret] "={r3}" (-> u64),
178 [r0_out] "={r0}" (r0_out),178 [r0_out] "={r0}" (r0_out),
179 [r4_out] "={r4}" (r4_out),179 [r4_out] "={r4}" (r4_out),
...@@ -198,51 +198,51 @@ pub fn clone() callconv(.naked) u64 {...@@ -198,51 +198,51 @@ pub fn clone() callconv(.naked) u64 {
198 // syscall(SYS_clone, flags, stack, ptid, tls, ctid)198 // syscall(SYS_clone, flags, stack, ptid, tls, ctid)
199 // 0 3, 4, 5, 6, 7199 // 0 3, 4, 5, 6, 7
200 asm volatile (200 asm volatile (
201 \\ # create initial stack frame for new thread201 \\ # create initial stack frame for new thread
202 \\ clrrdi 4, 4, 4202 \\ clrrdi 4, 4, 4
203 \\ li 0, 0203 \\ li 0, 0
204 \\ stdu 0,-32(4)204 \\ stdu 0,-32(4)
205 \\205 \\
206 \\ # save fn and arg to child stack206 \\ # save fn and arg to child stack
207 \\ std 3, 8(4)207 \\ std 3, 8(4)
208 \\ std 6, 16(4)208 \\ std 6, 16(4)
209 \\209 \\
210 \\ # shuffle args into correct registers and call SYS_clone210 \\ # shuffle args into correct registers and call SYS_clone
211 \\ mr 3, 5211 \\ mr 3, 5
212 \\ #mr 4, 4212 \\ #mr 4, 4
213 \\ mr 5, 7213 \\ mr 5, 7
214 \\ mr 6, 8214 \\ mr 6, 8
215 \\ mr 7, 9215 \\ mr 7, 9
216 \\ li 0, 120 # SYS_clone = 120216 \\ li 0, 120 # SYS_clone = 120
217 \\ sc217 \\ sc
218 \\218 \\
219 \\ # if error, negate return (errno)219 \\ # if error, negate return (errno)
220 \\ bns+ 1f220 \\ bns+ 1f
221 \\ neg 3, 3221 \\ neg 3, 3
222 \\222 \\
223 \\1:223 \\1:
224 \\ # if we're the parent, return224 \\ # if we're the parent, return
225 \\ cmpwi cr7, 3, 0225 \\ cmpwi cr7, 3, 0
226 \\ bnelr cr7226 \\ bnelr cr7
227 \\227 \\
228 \\ # we're the child228 \\ # we're the child
229 );229 );
230 if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (230 if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (
231 \\ .cfi_undefined lr231 \\ .cfi_undefined lr
232 );232 );
233 asm volatile (233 asm volatile (
234 \\ li 31, 0234 \\ li 31, 0
235 \\ mtlr 31235 \\ mtlr 31
236 \\236 \\
237 \\ # call fn(arg)237 \\ # call fn(arg)
238 \\ ld 3, 16(1)238 \\ ld 3, 16(1)
239 \\ ld 12, 8(1)239 \\ ld 12, 8(1)
240 \\ mtctr 12240 \\ mtctr 12
241 \\ bctrl241 \\ bctrl
242 \\242 \\
243 \\ # call SYS_exit. exit code is already in r3 from fn return value243 \\ # call SYS_exit. exit code is already in r3 from fn return value
244 \\ li 0, 1 # SYS_exit = 1244 \\ li 0, 1 # SYS_exit = 1
245 \\ sc245 \\ sc
246 );246 );
247}247}
248248
lib/std/os/linux/riscv32.zig+25-25
...@@ -116,41 +116,41 @@ pub fn clone() callconv(.naked) u32 {...@@ -116,41 +116,41 @@ pub fn clone() callconv(.naked) u32 {
116 // syscall(SYS_clone, flags, stack, ptid, tls, ctid)116 // syscall(SYS_clone, flags, stack, ptid, tls, ctid)
117 // a7 a0, a1, a2, a3, a4117 // a7 a0, a1, a2, a3, a4
118 asm volatile (118 asm volatile (
119 \\ andi a1, a1, -16119 \\ andi a1, a1, -16
120 \\ # Save func and arg to stack120 \\ # Save func and arg to stack
121 \\ addi a1, a1, -16121 \\ addi a1, a1, -16
122 \\ sw a0, 0(a1)122 \\ sw a0, 0(a1)
123 \\ sw a3, 4(a1)123 \\ sw a3, 4(a1)
124 \\124 \\
125 \\ # Call SYS_clone125 \\ # Call SYS_clone
126 \\ mv a0, a2126 \\ mv a0, a2
127 \\ mv a2, a4127 \\ mv a2, a4
128 \\ mv a3, a5128 \\ mv a3, a5
129 \\ mv a4, a6129 \\ mv a4, a6
130 \\ li a7, 220 # SYS_clone130 \\ li a7, 220 # SYS_clone
131 \\ ecall131 \\ ecall
132 \\132 \\
133 \\ beqz a0, 1f133 \\ beqz a0, 1f
134 \\ # Parent134 \\ # Parent
135 \\ ret135 \\ ret
136 \\136 \\
137 \\ # Child137 \\ # Child
138 \\1:138 \\1:
139 );139 );
140 if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (140 if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (
141 \\ .cfi_undefined ra141 \\ .cfi_undefined ra
142 );142 );
143 asm volatile (143 asm volatile (
144 \\ mv fp, zero144 \\ mv fp, zero
145 \\ mv ra, zero145 \\ mv ra, zero
146 \\146 \\
147 \\ lw a1, 0(sp)147 \\ lw a1, 0(sp)
148 \\ lw a0, 4(sp)148 \\ lw a0, 4(sp)
149 \\ jalr a1149 \\ jalr a1
150 \\150 \\
151 \\ # Exit151 \\ # Exit
152 \\ li a7, 93 # SYS_exit152 \\ li a7, 93 # SYS_exit
153 \\ ecall153 \\ ecall
154 );154 );
155}155}
156156
lib/std/os/linux/riscv64.zig+25-25
...@@ -116,41 +116,41 @@ pub fn clone() callconv(.naked) u64 {...@@ -116,41 +116,41 @@ pub fn clone() callconv(.naked) u64 {
116 // syscall(SYS_clone, flags, stack, ptid, tls, ctid)116 // syscall(SYS_clone, flags, stack, ptid, tls, ctid)
117 // a7 a0, a1, a2, a3, a4117 // a7 a0, a1, a2, a3, a4
118 asm volatile (118 asm volatile (
119 \\ andi a1, a1, -16119 \\ andi a1, a1, -16
120 \\ # Save func and arg to stack120 \\ # Save func and arg to stack
121 \\ addi a1, a1, -16121 \\ addi a1, a1, -16
122 \\ sd a0, 0(a1)122 \\ sd a0, 0(a1)
123 \\ sd a3, 8(a1)123 \\ sd a3, 8(a1)
124 \\124 \\
125 \\ # Call SYS_clone125 \\ # Call SYS_clone
126 \\ mv a0, a2126 \\ mv a0, a2
127 \\ mv a2, a4127 \\ mv a2, a4
128 \\ mv a3, a5128 \\ mv a3, a5
129 \\ mv a4, a6129 \\ mv a4, a6
130 \\ li a7, 220 # SYS_clone130 \\ li a7, 220 # SYS_clone
131 \\ ecall131 \\ ecall
132 \\132 \\
133 \\ beqz a0, 1f133 \\ beqz a0, 1f
134 \\ # Parent134 \\ # Parent
135 \\ ret135 \\ ret
136 \\136 \\
137 \\ # Child137 \\ # Child
138 \\1:138 \\1:
139 );139 );
140 if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (140 if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (
141 \\ .cfi_undefined ra141 \\ .cfi_undefined ra
142 );142 );
143 asm volatile (143 asm volatile (
144 \\ mv fp, zero144 \\ mv fp, zero
145 \\ mv ra, zero145 \\ mv ra, zero
146 \\146 \\
147 \\ ld a1, 0(sp)147 \\ ld a1, 0(sp)
148 \\ ld a0, 8(sp)148 \\ ld a0, 8(sp)
149 \\ jalr a1149 \\ jalr a1
150 \\150 \\
151 \\ # Exit151 \\ # Exit
152 \\ li a7, 93 # SYS_exit152 \\ li a7, 93 # SYS_exit
153 \\ ecall153 \\ ecall
154 );154 );
155}155}
156156
lib/std/os/linux/s390x.zig+49-50
...@@ -111,72 +111,71 @@ pub fn syscall6(...@@ -111,72 +111,71 @@ pub fn syscall6(
111111
112pub fn clone() callconv(.naked) u64 {112pub fn clone() callconv(.naked) u64 {
113 asm volatile (113 asm volatile (
114 \\# int clone(114 \\ # int clone(
115 \\# fn, a = r2115 \\ # fn, a = r2
116 \\# stack, b = r3116 \\ # stack, b = r3
117 \\# flags, c = r4117 \\ # flags, c = r4
118 \\# arg, d = r5118 \\ # arg, d = r5
119 \\# ptid, e = r6119 \\ # ptid, e = r6
120 \\# tls, f = *(r15+160)120 \\ # tls, f = *(r15+160)
121 \\# ctid) g = *(r15+168)121 \\ # ctid) g = *(r15+168)
122 \\#122 \\ #
123 \\# pseudo C code:123 \\ # pseudo C code:
124 \\# tid = syscall(SYS_clone,b,c,e,g,f);124 \\ # tid = syscall(SYS_clone,b,c,e,g,f);
125 \\# if (!tid) syscall(SYS_exit, a(d));125 \\ # if (!tid) syscall(SYS_exit, a(d));
126 \\# return tid;126 \\ # return tid;
127 \\127 \\
128 \\# preserve call-saved register used as syscall arg128 \\ # preserve call-saved register used as syscall arg
129 \\stg %%r6, 48(%%r15)129 \\ stg %%r6, 48(%%r15)
130 \\130 \\
131 \\# create initial stack frame for new thread131 \\ # create initial stack frame for new thread
132 \\nill %%r3, 0xfff8132 \\ nill %%r3, 0xfff8
133 \\aghi %%r3, -160133 \\ aghi %%r3, -160
134 \\lghi %%r0, 0134 \\ lghi %%r0, 0
135 \\stg %%r0, 0(%%r3)135 \\ stg %%r0, 0(%%r3)
136 \\136 \\
137 \\# save fn and arg to child stack137 \\ # save fn and arg to child stack
138 \\stg %%r2, 8(%%r3)138 \\ stg %%r2, 8(%%r3)
139 \\stg %%r5, 16(%%r3)139 \\ stg %%r5, 16(%%r3)
140 \\140 \\
141 \\# shuffle args into correct registers and call SYS_clone141 \\ # shuffle args into correct registers and call SYS_clone
142 \\lgr %%r2, %%r3142 \\ lgr %%r2, %%r3
143 \\lgr %%r3, %%r4143 \\ lgr %%r3, %%r4
144 \\lgr %%r4, %%r6144 \\ lgr %%r4, %%r6
145 \\lg %%r5, 168(%%r15)145 \\ lg %%r5, 168(%%r15)
146 \\lg %%r6, 160(%%r15)146 \\ lg %%r6, 160(%%r15)
147 \\svc 120147 \\ svc 120
148 \\148 \\
149 \\# restore call-saved register149 \\ # restore call-saved register
150 \\lg %%r6, 48(%%r15)150 \\ lg %%r6, 48(%%r15)
151 \\151 \\
152 \\# if error or if we're the parent, return152 \\ # if error or if we're the parent, return
153 \\ltgr %%r2, %%r2153 \\ ltgr %%r2, %%r2
154 \\bnzr %%r14154 \\ bnzr %%r14
155 \\155 \\
156 \\# we're the child156 \\ # we're the child
157 );157 );
158 if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (158 if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (
159 \\.cfi_undefined %%r14159 \\ .cfi_undefined %%r14
160 );160 );
161 asm volatile (161 asm volatile (
162 \\lghi %%r11, 0162 \\ lghi %%r11, 0
163 \\lghi %%r14, 0163 \\ lghi %%r14, 0
164 \\164 \\
165 \\# call fn(arg)165 \\ # call fn(arg)
166 \\lg %%r1, 8(%%r15)166 \\ lg %%r1, 8(%%r15)
167 \\lg %%r2, 16(%%r15)167 \\ lg %%r2, 16(%%r15)
168 \\basr %%r14, %%r1168 \\ basr %%r14, %%r1
169 \\
170 \\# call SYS_exit. exit code is already in r2 from fn return value
171 \\svc 1
172 \\169 \\
170 \\ # call SYS_exit. exit code is already in r2 from fn return value
171 \\ svc 1
173 );172 );
174}173}
175174
176pub fn restore() callconv(.naked) noreturn {175pub fn restore() callconv(.naked) noreturn {
177 asm volatile (176 asm volatile (
178 \\lghi %%r1, %[number]177 \\ lghi %%r1, %[number]
179 \\svc 0178 \\ svc 0
180 :179 :
181 : [number] "K" (@backingInt(SYS.sigreturn)),180 : [number] "K" (@backingInt(SYS.sigreturn)),
182 );181 );
...@@ -184,8 +183,8 @@ pub fn restore() callconv(.naked) noreturn {...@@ -184,8 +183,8 @@ pub fn restore() callconv(.naked) noreturn {
184183
185pub fn restore_rt() callconv(.naked) noreturn {184pub fn restore_rt() callconv(.naked) noreturn {
186 asm volatile (185 asm volatile (
187 \\lghi %%r1, %[number]186 \\ lghi %%r1, %[number]
188 \\svc 0187 \\ svc 0
189 :188 :
190 : [number] "K" (@backingInt(SYS.rt_sigreturn)),189 : [number] "K" (@backingInt(SYS.rt_sigreturn)),
191 );190 );
lib/std/os/linux/x32.zig+21-22
...@@ -125,35 +125,34 @@ pub fn syscall_lseek(...@@ -125,35 +125,34 @@ pub fn syscall_lseek(
125125
126pub fn clone() callconv(.naked) u32 {126pub fn clone() callconv(.naked) u32 {
127 asm volatile (127 asm volatile (
128 \\ movl $0x40000038,%%eax // SYS_clone128 \\ movl $0x40000038,%%eax // SYS_clone
129 \\ mov %%rdi,%%r11129 \\ mov %%rdi,%%r11
130 \\ mov %%rdx,%%rdi130 \\ mov %%rdx,%%rdi
131 \\ mov %%r8,%%rdx131 \\ mov %%r8,%%rdx
132 \\ mov %%r9,%%r8132 \\ mov %%r9,%%r8
133 \\ mov 8(%%rsp),%%r10d133 \\ mov 8(%%rsp),%%r10d
134 \\ mov %%r11,%%r9134 \\ mov %%r11,%%r9
135 \\ and $-16,%%rsi135 \\ and $-16,%%rsi
136 \\ sub $8,%%rsi136 \\ sub $8,%%rsi
137 \\ mov %%rcx,(%%rsi)137 \\ mov %%rcx,(%%rsi)
138 \\ syscall138 \\ syscall
139 \\ test %%eax,%%eax139 \\ test %%eax,%%eax
140 \\ jz 1f140 \\ jz 1f
141 \\ ret141 \\ ret
142 \\142 \\
143 \\1:143 \\1:
144 );144 );
145 if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (145 if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (
146 \\ .cfi_undefined %%rip146 \\ .cfi_undefined %%rip
147 );147 );
148 asm volatile (148 asm volatile (
149 \\ xor %%ebp,%%ebp149 \\ xor %%ebp,%%ebp
150 \\
151 \\ pop %%rdi
152 \\ call *%%r9
153 \\ mov %%eax,%%edi
154 \\ movl $0x4000003c,%%eax // SYS_exit
155 \\ syscall
156 \\150 \\
151 \\ pop %%rdi
152 \\ call *%%r9
153 \\ mov %%eax,%%edi
154 \\ movl $0x4000003c,%%eax // SYS_exit
155 \\ syscall
157 );156 );
158}157}
159158
lib/std/os/linux/x86.zig+33-33
...@@ -142,46 +142,46 @@ pub fn clone() callconv(.naked) u32 {...@@ -142,46 +142,46 @@ pub fn clone() callconv(.naked) u32 {
142 // syscall(SYS_clone, flags, stack, ptid, tls, ctid)142 // syscall(SYS_clone, flags, stack, ptid, tls, ctid)
143 // eax, ebx, ecx, edx, esi, edi143 // eax, ebx, ecx, edx, esi, edi
144 asm volatile (144 asm volatile (
145 \\ pushl %%ebp145 \\ pushl %%ebp
146 \\ movl %%esp,%%ebp146 \\ movl %%esp,%%ebp
147 \\ pushl %%ebx147 \\ pushl %%ebx
148 \\ pushl %%esi148 \\ pushl %%esi
149 \\ pushl %%edi149 \\ pushl %%edi
150 \\ // Setup the arguments150 \\ // Setup the arguments
151 \\ movl 16(%%ebp),%%ebx151 \\ movl 16(%%ebp),%%ebx
152 \\ movl 12(%%ebp),%%ecx152 \\ movl 12(%%ebp),%%ecx
153 \\ andl $-16,%%ecx153 \\ andl $-16,%%ecx
154 \\ subl $20,%%ecx154 \\ subl $20,%%ecx
155 \\ movl 20(%%ebp),%%eax155 \\ movl 20(%%ebp),%%eax
156 \\ movl %%eax,4(%%ecx)156 \\ movl %%eax,4(%%ecx)
157 \\ movl 8(%%ebp),%%eax157 \\ movl 8(%%ebp),%%eax
158 \\ movl %%eax,0(%%ecx)158 \\ movl %%eax,0(%%ecx)
159 \\ movl 24(%%ebp),%%edx159 \\ movl 24(%%ebp),%%edx
160 \\ movl 28(%%ebp),%%esi160 \\ movl 28(%%ebp),%%esi
161 \\ movl 32(%%ebp),%%edi161 \\ movl 32(%%ebp),%%edi
162 \\ movl $120,%%eax // SYS_clone162 \\ movl $120,%%eax // SYS_clone
163 \\ int $128163 \\ int $128
164 \\ testl %%eax,%%eax164 \\ testl %%eax,%%eax
165 \\ jz 1f165 \\ jz 1f
166 \\ popl %%edi166 \\ popl %%edi
167 \\ popl %%esi167 \\ popl %%esi
168 \\ popl %%ebx168 \\ popl %%ebx
169 \\ popl %%ebp169 \\ popl %%ebp
170 \\ retl170 \\ retl
171 \\171 \\
172 \\1:172 \\1:
173 );173 );
174 if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (174 if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (
175 \\ .cfi_undefined %%eip175 \\ .cfi_undefined %%eip
176 );176 );
177 asm volatile (177 asm volatile (
178 \\ xorl %%ebp,%%ebp178 \\ xorl %%ebp,%%ebp
179 \\179 \\
180 \\ popl %%eax180 \\ popl %%eax
181 \\ calll *%%eax181 \\ calll *%%eax
182 \\ movl %%eax,%%ebx182 \\ movl %%eax,%%ebx
183 \\ movl $1,%%eax // SYS_exit183 \\ movl $1,%%eax // SYS_exit
184 \\ int $128184 \\ int $128
185 );185 );
186}186}
187187
lib/std/os/linux/x86_64.zig+21-22
...@@ -111,35 +111,34 @@ pub fn syscall6(...@@ -111,35 +111,34 @@ pub fn syscall6(
111111
112pub fn clone() callconv(.naked) u64 {112pub fn clone() callconv(.naked) u64 {
113 asm volatile (113 asm volatile (
114 \\ movl $56,%%eax // SYS_clone114 \\ movl $56,%%eax // SYS_clone
115 \\ movq %%rdi,%%r11115 \\ movq %%rdi,%%r11
116 \\ movq %%rdx,%%rdi116 \\ movq %%rdx,%%rdi
117 \\ movq %%r8,%%rdx117 \\ movq %%r8,%%rdx
118 \\ movq %%r9,%%r8118 \\ movq %%r9,%%r8
119 \\ movq 8(%%rsp),%%r10119 \\ movq 8(%%rsp),%%r10
120 \\ movq %%r11,%%r9120 \\ movq %%r11,%%r9
121 \\ andq $-16,%%rsi121 \\ andq $-16,%%rsi
122 \\ subq $8,%%rsi122 \\ subq $8,%%rsi
123 \\ movq %%rcx,(%%rsi)123 \\ movq %%rcx,(%%rsi)
124 \\ syscall124 \\ syscall
125 \\ testq %%rax,%%rax125 \\ testq %%rax,%%rax
126 \\ jz 1f126 \\ jz 1f
127 \\ retq127 \\ retq
128 \\128 \\
129 \\1:129 \\1:
130 );130 );
131 if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (131 if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (
132 \\ .cfi_undefined %%rip132 \\ .cfi_undefined %%rip
133 );133 );
134 asm volatile (134 asm volatile (
135 \\ xorl %%ebp,%%ebp135 \\ xorl %%ebp,%%ebp
136 \\
137 \\ popq %%rdi
138 \\ callq *%%r9
139 \\ movl %%eax,%%edi
140 \\ movl $60,%%eax // SYS_exit
141 \\ syscall
142 \\136 \\
137 \\ popq %%rdi
138 \\ callq *%%r9
139 \\ movl %%eax,%%edi
140 \\ movl $60,%%eax // SYS_exit
141 \\ syscall
143 );142 );
144}143}
145144