[rustc.git] / vendor / rustix / src / imp / linux_raw / arch / outline / arm.s

// Assembly code for making arm syscalls.
//
// arm syscall argument register ordering is the similar to the arm
// userspace argument register ordering except that the syscall number
// (nr) is passed in r7.
//
// nr_last.rs takes care of reordering the nr argument to the end for us,
// so we only need to move nr into r7 and take care of r4 and r5 if needed.

    .file       "arm.s"
    .arch       armv5t

    .section    .text.rustix_syscall0_nr_last,"ax",%progbits
    .p2align    4
    .weak       rustix_syscall0_nr_last
    .hidden     rustix_syscall0_nr_last
    .type       rustix_syscall0_nr_last, %function
rustix_syscall0_nr_last:
    .fnstart
    .cantunwind
    push    {r7, lr}
    mov     r7, r0
    svc     #0
    pop     {r7, pc}
    .fnend
    .size rustix_syscall0_nr_last, .-rustix_syscall0_nr_last

    .section    .text.rustix_syscall1_nr_last,"ax",%progbits
    .p2align 4
    .weak       rustix_syscall1_nr_last
    .hidden     rustix_syscall1_nr_last
    .type       rustix_syscall1_nr_last, %function
rustix_syscall1_nr_last:
    .fnstart
    .cantunwind
    push    {r7, lr}
    mov     r7, r1
    svc     #0
    pop     {r7, pc}
    .fnend
    .size rustix_syscall1_nr_last, .-rustix_syscall1_nr_last

    .section    .text.rustix_syscall1_noreturn_nr_last,"ax",%progbits
    .p2align    4
    .weak       rustix_syscall1_noreturn_nr_last
    .hidden     rustix_syscall1_noreturn_nr_last
    .type       rustix_syscall1_noreturn_nr_last, %function
rustix_syscall1_noreturn_nr_last:
    .fnstart
    .cantunwind
    // Don't save r7 and lr; this is noreturn, so we'll never restore them.
    mov     r7, r1
    svc     #0
    udf     #16 // Trap instruction
    .fnend
    .size rustix_syscall1_noreturn_nr_last, .-rustix_syscall1_noreturn_nr_last

    .section    .text.rustix_syscall2_nr_last,"ax",%progbits
    .p2align 4
    .weak       rustix_syscall2_nr_last
    .hidden     rustix_syscall2_nr_last
    .type       rustix_syscall2_nr_last, %function
rustix_syscall2_nr_last:
    .fnstart
    .cantunwind
    push    {r7, lr}
    mov     r7, r2
    svc     #0
    pop     {r7, pc}
    .fnend
    .size rustix_syscall2_nr_last, .-rustix_syscall2_nr_last

    .section    .text.rustix_syscall3_nr_last,"ax",%progbits
    .p2align 4
    .weak       rustix_syscall3_nr_last
    .hidden     rustix_syscall3_nr_last
    .type       rustix_syscall3_nr_last, %function
rustix_syscall3_nr_last:
    .fnstart
    .cantunwind
    push    {r7, lr}
    mov     r7, r3
    svc     #0
    pop     {r7, pc}
    .fnend
    .size rustix_syscall3_nr_last, .-rustix_syscall3_nr_last

    .section    .text.rustix_syscall4_nr_last,"ax",%progbits
    .p2align 4
    .weak       rustix_syscall4_nr_last
    .hidden     rustix_syscall4_nr_last
    .type       rustix_syscall4_nr_last, %function
rustix_syscall4_nr_last:
    .fnstart
    .cantunwind
    push    {r7, lr}
    ldr     r7, [sp, #8]
    svc     #0
    pop     {r7, pc}
    .fnend
    .size rustix_syscall4_nr_last, .-rustix_syscall4_nr_last

    .section    .text.rustix_syscall5_nr_last,"ax",%progbits
    .p2align 4
    .weak       rustix_syscall5_nr_last
    .hidden     rustix_syscall5_nr_last
    .type       rustix_syscall5_nr_last, %function
rustix_syscall5_nr_last:
    .fnstart
    .cantunwind
    push    {r4, r7, r11, lr}
    ldr     r7, [sp, #20]
    ldr     r4, [sp, #16]
    svc     #0
    pop     {r4, r7, r11, pc}
    .fnend
    .size rustix_syscall5_nr_last, .-rustix_syscall5_nr_last

    .section    .text.rustix_syscall6_nr_last,"ax",%progbits
    .p2align 4
    .weak       rustix_syscall6_nr_last
    .hidden     rustix_syscall6_nr_last
    .type       rustix_syscall6_nr_last, %function
rustix_syscall6_nr_last:
    .fnstart
    .cantunwind
    push    {r4, r5, r7, lr}
    add     r7, sp, #16
    ldm     r7, {r4, r5, r7}
    svc     #0
    pop     {r4, r5, r7, pc}
    .fnend
    .size rustix_syscall6_nr_last, .-rustix_syscall6_nr_last

    .section .note.GNU-stack,"",%progbits
Commit	Line	Data
064997fb FG	1	// Assembly code for making arm syscalls.
	2	//
	3	// arm syscall argument register ordering is the similar to the arm
	4	// userspace argument register ordering except that the syscall number
	5	// (nr) is passed in r7.
	6	//
	7	// nr_last.rs takes care of reordering the nr argument to the end for us,
	8	// so we only need to move nr into r7 and take care of r4 and r5 if needed.
	9
	10	.file "arm.s"
	11	.arch armv5t
	12
	13	.section .text.rustix_syscall0_nr_last,"ax",%progbits
	14	.p2align 4
	15	.weak rustix_syscall0_nr_last
	16	.hidden rustix_syscall0_nr_last
	17	.type rustix_syscall0_nr_last, %function
	18	rustix_syscall0_nr_last:
	19	.fnstart
	20	.cantunwind
	21	push {r7, lr}
	22	mov r7, r0
	23	svc #0
	24	pop {r7, pc}
	25	.fnend
	26	.size rustix_syscall0_nr_last, .-rustix_syscall0_nr_last
	27
	28	.section .text.rustix_syscall1_nr_last,"ax",%progbits
	29	.p2align 4
	30	.weak rustix_syscall1_nr_last
	31	.hidden rustix_syscall1_nr_last
	32	.type rustix_syscall1_nr_last, %function
	33	rustix_syscall1_nr_last:
	34	.fnstart
	35	.cantunwind
	36	push {r7, lr}
	37	mov r7, r1
	38	svc #0
	39	pop {r7, pc}
	40	.fnend
	41	.size rustix_syscall1_nr_last, .-rustix_syscall1_nr_last
	42
	43	.section .text.rustix_syscall1_noreturn_nr_last,"ax",%progbits
	44	.p2align 4
	45	.weak rustix_syscall1_noreturn_nr_last
	46	.hidden rustix_syscall1_noreturn_nr_last
	47	.type rustix_syscall1_noreturn_nr_last, %function
	48	rustix_syscall1_noreturn_nr_last:
	49	.fnstart
	50	.cantunwind
	51	// Don't save r7 and lr; this is noreturn, so we'll never restore them.
	52	mov r7, r1
	53	svc #0
	54	udf #16 // Trap instruction
	55	.fnend
	56	.size rustix_syscall1_noreturn_nr_last, .-rustix_syscall1_noreturn_nr_last
	57
	58	.section .text.rustix_syscall2_nr_last,"ax",%progbits
	59	.p2align 4
	60	.weak rustix_syscall2_nr_last
	61	.hidden rustix_syscall2_nr_last
	62	.type rustix_syscall2_nr_last, %function
	63	rustix_syscall2_nr_last:
	64	.fnstart
65	.cantunwind
66	push {r7, lr}
67	mov r7, r2
68	svc #0
69	pop {r7, pc}
70	.fnend
71	.size rustix_syscall2_nr_last, .-rustix_syscall2_nr_last
72
73	.section .text.rustix_syscall3_nr_last,"ax",%progbits
74	.p2align 4
75	.weak rustix_syscall3_nr_last
76	.hidden rustix_syscall3_nr_last
77	.type rustix_syscall3_nr_last, %function
78	rustix_syscall3_nr_last:
79	.fnstart
80	.cantunwind
81	push {r7, lr}
82	mov r7, r3
83	svc #0
84	pop {r7, pc}
85	.fnend
86	.size rustix_syscall3_nr_last, .-rustix_syscall3_nr_last
87
88	.section .text.rustix_syscall4_nr_last,"ax",%progbits
89	.p2align 4
90	.weak rustix_syscall4_nr_last
91	.hidden rustix_syscall4_nr_last
92	.type rustix_syscall4_nr_last, %function
93	rustix_syscall4_nr_last:
94	.fnstart
95	.cantunwind
96	push {r7, lr}
97	ldr r7, [sp, #8]
98	svc #0
99	pop {r7, pc}
100	.fnend
101	.size rustix_syscall4_nr_last, .-rustix_syscall4_nr_last
102
103	.section .text.rustix_syscall5_nr_last,"ax",%progbits
104	.p2align 4
105	.weak rustix_syscall5_nr_last
106	.hidden rustix_syscall5_nr_last
107	.type rustix_syscall5_nr_last, %function
108	rustix_syscall5_nr_last:
109	.fnstart
110	.cantunwind
111	push {r4, r7, r11, lr}
112	ldr r7, [sp, #20]
113	ldr r4, [sp, #16]
114	svc #0
115	pop {r4, r7, r11, pc}
116	.fnend
117	.size rustix_syscall5_nr_last, .-rustix_syscall5_nr_last
118
119	.section .text.rustix_syscall6_nr_last,"ax",%progbits
120	.p2align 4
121	.weak rustix_syscall6_nr_last
122	.hidden rustix_syscall6_nr_last
123	.type rustix_syscall6_nr_last, %function
124	rustix_syscall6_nr_last:
125	.fnstart
126	.cantunwind
127	push {r4, r5, r7, lr}
128	add r7, sp, #16
129	ldm r7, {r4, r5, r7}
130	svc #0
131	pop {r4, r5, r7, pc}
132	.fnend
133	.size rustix_syscall6_nr_last, .-rustix_syscall6_nr_last
134
135	.section .note.GNU-stack,"",%progbits