diff options
Diffstat (limited to 'src/pkg/syscall/asm_linux_arm.s')
| -rw-r--r-- | src/pkg/syscall/asm_linux_arm.s | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/pkg/syscall/asm_linux_arm.s b/src/pkg/syscall/asm_linux_arm.s index 024018d5a..f7153d549 100644 --- a/src/pkg/syscall/asm_linux_arm.s +++ b/src/pkg/syscall/asm_linux_arm.s @@ -2,3 +2,56 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. +// +// System calls for arm, Linux +// + +#define SYS_BASE 0x00900000 +#define SYS_syscall (SYS_BASE+113); + +// TODO(kaib): handle error returns + +// func Syscall(syscall uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr); + +TEXT syscall·Syscall(SB),7,$0 + BL sys·entersyscall(SB) + MOVW 4(SP), R7 + MOVW 8(SP), R0 + MOVW 12(SP), R1 + MOVW 16(SP), R2 + SWI $SYS_syscall + MOVW R0, 20(SP) // r1 + MOVW R1, 24(SP) // r2 + MOVW $0, 28(SP) // errno + BL sys·exitsyscall(SB) + RET + +// func Syscall6(trap uintptr, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr); +// Actually Syscall5 but the rest of the code expects it to be named Syscall6. +TEXT syscall·Syscall6(SB),7,$0 + BL sys·entersyscall(SB) + MOVW 4(SP), R7 // syscall entry + MOVW 8(SP), R0 + MOVW 12(SP), R1 + MOVW 16(SP), R2 + MOVW 20(SP), R3 + MOVW 24(SP), R4 + MOVW 28(SP), R5 + SWI $SYS_syscall + MOVW R0, 32(SP) // r1 + MOVW R1, 36(SP) // r2 + MOVW $0, 40(SP) // errno + BL sys·exitsyscall(SB) + RET + +// func RawSyscall(trap uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr); +TEXT syscall·RawSyscall(SB),7,$0 + MOVW 4(SP), R7 // syscall entry + MOVW 8(SP), R0 + MOVW 12(SP), R1 + MOVW 16(SP), R2 + SWI $SYS_syscall + MOVW R0, 20(SP) // r1 + MOVW R1, 24(SP) // r2 + MOVW $0, 28(SP) // errno + RET |