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// 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
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