| // 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 |