diff options
Diffstat (limited to 'vendor/rustix/src/backend/linux_raw/arch/thumb.rs')
| -rw-r--r-- | vendor/rustix/src/backend/linux_raw/arch/thumb.rs | 322 |
1 files changed, 0 insertions, 322 deletions
diff --git a/vendor/rustix/src/backend/linux_raw/arch/thumb.rs b/vendor/rustix/src/backend/linux_raw/arch/thumb.rs deleted file mode 100644 index 73f9c1c..0000000 --- a/vendor/rustix/src/backend/linux_raw/arch/thumb.rs +++ /dev/null @@ -1,322 +0,0 @@ -//! arm Linux system calls, using thumb-mode. -//! -//! In thumb-mode, r7 is the frame pointer and is not permitted to be used in -//! an inline asm operand, so we have to use a different register and copy it -//! into r7 inside the inline asm. - -use crate::backend::reg::{ - ArgReg, FromAsm, RetReg, SyscallNumber, ToAsm, A0, A1, A2, A3, A4, A5, R0, -}; -use core::arch::asm; - -#[inline] -pub(in crate::backend) unsafe fn syscall0_readonly(nr: SyscallNumber<'_>) -> RetReg<R0> { - let r0; - asm!( - "mov {tmp}, r7", - "mov r7, {nr}", - "svc 0", - "mov r7, {tmp}", - nr = in(reg) nr.to_asm(), - tmp = out(reg) _, - lateout("r0") r0, - options(nostack, preserves_flags, readonly) - ); - FromAsm::from_asm(r0) -} - -#[inline] -pub(in crate::backend) unsafe fn syscall1(nr: SyscallNumber<'_>, a0: ArgReg<'_, A0>) -> RetReg<R0> { - let r0; - asm!( - "mov {tmp}, r7", - "mov r7, {nr}", - "svc 0", - "mov r7, {tmp}", - nr = in(reg) nr.to_asm(), - tmp = out(reg) _, - inlateout("r0") a0.to_asm() => r0, - options(nostack, preserves_flags) - ); - FromAsm::from_asm(r0) -} - -#[inline] -pub(in crate::backend) unsafe fn syscall1_readonly( - nr: SyscallNumber<'_>, - a0: ArgReg<'_, A0>, -) -> RetReg<R0> { - let r0; - asm!( - "mov {tmp}, r7", - "mov r7, {nr}", - "svc 0", - "mov r7, {tmp}", - nr = in(reg) nr.to_asm(), - tmp = out(reg) _, - inlateout("r0") a0.to_asm() => r0, - options(nostack, preserves_flags, readonly) - ); - FromAsm::from_asm(r0) -} - -#[inline] -pub(in crate::backend) unsafe fn syscall1_noreturn(nr: SyscallNumber<'_>, a0: ArgReg<'_, A0>) -> ! { - asm!( - "mov r7, {nr}", - "svc 0", - nr = in(reg) nr.to_asm(), - in("r0") a0.to_asm(), - options(nostack, noreturn) - ) -} - -#[inline] -pub(in crate::backend) unsafe fn syscall2( - nr: SyscallNumber<'_>, - a0: ArgReg<'_, A0>, - a1: ArgReg<'_, A1>, -) -> RetReg<R0> { - let r0; - asm!( - "mov {tmp}, r7", - "mov r7, {nr}", - "svc 0", - "mov r7, {tmp}", - nr = in(reg) nr.to_asm(), - tmp = out(reg) _, - inlateout("r0") a0.to_asm() => r0, - in("r1") a1.to_asm(), - options(nostack, preserves_flags) - ); - FromAsm::from_asm(r0) -} - -#[inline] -pub(in crate::backend) unsafe fn syscall2_readonly( - nr: SyscallNumber<'_>, - a0: ArgReg<'_, A0>, - a1: ArgReg<'_, A1>, -) -> RetReg<R0> { - let r0; - asm!( - "mov {tmp}, r7", - "mov r7, {nr}", - "svc 0", - "mov r7, {tmp}", - nr = in(reg) nr.to_asm(), - tmp = out(reg) _, - inlateout("r0") a0.to_asm() => r0, - in("r1") a1.to_asm(), - options(nostack, preserves_flags, readonly) - ); - FromAsm::from_asm(r0) -} - -#[inline] -pub(in crate::backend) unsafe fn syscall3( - nr: SyscallNumber<'_>, - a0: ArgReg<'_, A0>, - a1: ArgReg<'_, A1>, - a2: ArgReg<'_, A2>, -) -> RetReg<R0> { - let r0; - asm!( - "mov {tmp}, r7", - "mov r7, {nr}", - "svc 0", - "mov r7, {tmp}", - nr = in(reg) nr.to_asm(), - tmp = out(reg) _, - inlateout("r0") a0.to_asm() => r0, - in("r1") a1.to_asm(), - in("r2") a2.to_asm(), - options(nostack, preserves_flags) - ); - FromAsm::from_asm(r0) -} - -#[inline] -pub(in crate::backend) unsafe fn syscall3_readonly( - nr: SyscallNumber<'_>, - a0: ArgReg<'_, A0>, - a1: ArgReg<'_, A1>, - a2: ArgReg<'_, A2>, -) -> RetReg<R0> { - let r0; - asm!( - "mov {tmp}, r7", - "mov r7, {nr}", - "svc 0", - "mov r7, {tmp}", - nr = in(reg) nr.to_asm(), - tmp = out(reg) _, - inlateout("r0") a0.to_asm() => r0, - in("r1") a1.to_asm(), - in("r2") a2.to_asm(), - options(nostack, preserves_flags, readonly) - ); - FromAsm::from_asm(r0) -} - -#[inline] -pub(in crate::backend) unsafe fn syscall4( - nr: SyscallNumber<'_>, - a0: ArgReg<'_, A0>, - a1: ArgReg<'_, A1>, - a2: ArgReg<'_, A2>, - a3: ArgReg<'_, A3>, -) -> RetReg<R0> { - let r0; - asm!( - "mov {tmp}, r7", - "mov r7, {nr}", - "svc 0", - "mov r7, {tmp}", - nr = in(reg) nr.to_asm(), - tmp = out(reg) _, - inlateout("r0") a0.to_asm() => r0, - in("r1") a1.to_asm(), - in("r2") a2.to_asm(), - in("r3") a3.to_asm(), - options(nostack, preserves_flags) - ); - FromAsm::from_asm(r0) -} - -#[inline] -pub(in crate::backend) unsafe fn syscall4_readonly( - nr: SyscallNumber<'_>, - a0: ArgReg<'_, A0>, - a1: ArgReg<'_, A1>, - a2: ArgReg<'_, A2>, - a3: ArgReg<'_, A3>, -) -> RetReg<R0> { - let r0; - asm!( - "mov {tmp}, r7", - "mov r7, {nr}", - "svc 0", - "mov r7, {tmp}", - nr = in(reg) nr.to_asm(), - tmp = out(reg) _, - inlateout("r0") a0.to_asm() => r0, - in("r1") a1.to_asm(), - in("r2") a2.to_asm(), - in("r3") a3.to_asm(), - options(nostack, preserves_flags, readonly) - ); - FromAsm::from_asm(r0) -} - -#[inline] -pub(in crate::backend) unsafe fn syscall5( - nr: SyscallNumber<'_>, - a0: ArgReg<'_, A0>, - a1: ArgReg<'_, A1>, - a2: ArgReg<'_, A2>, - a3: ArgReg<'_, A3>, - a4: ArgReg<'_, A4>, -) -> RetReg<R0> { - let r0; - asm!( - "mov {tmp}, r7", - "mov r7, {nr}", - "svc 0", - "mov r7, {tmp}", - nr = in(reg) nr.to_asm(), - tmp = out(reg) _, - inlateout("r0") a0.to_asm() => r0, - in("r1") a1.to_asm(), - in("r2") a2.to_asm(), - in("r3") a3.to_asm(), - in("r4") a4.to_asm(), - options(nostack, preserves_flags) - ); - FromAsm::from_asm(r0) -} - -#[inline] -pub(in crate::backend) unsafe fn syscall5_readonly( - nr: SyscallNumber<'_>, - a0: ArgReg<'_, A0>, - a1: ArgReg<'_, A1>, - a2: ArgReg<'_, A2>, - a3: ArgReg<'_, A3>, - a4: ArgReg<'_, A4>, -) -> RetReg<R0> { - let r0; - asm!( - "mov {tmp}, r7", - "mov r7, {nr}", - "svc 0", - "mov r7, {tmp}", - nr = in(reg) nr.to_asm(), - tmp = out(reg) _, - inlateout("r0") a0.to_asm() => r0, - in("r1") a1.to_asm(), - in("r2") a2.to_asm(), - in("r3") a3.to_asm(), - in("r4") a4.to_asm(), - options(nostack, preserves_flags, readonly) - ); - FromAsm::from_asm(r0) -} - -#[inline] -pub(in crate::backend) unsafe fn syscall6( - nr: SyscallNumber<'_>, - a0: ArgReg<'_, A0>, - a1: ArgReg<'_, A1>, - a2: ArgReg<'_, A2>, - a3: ArgReg<'_, A3>, - a4: ArgReg<'_, A4>, - a5: ArgReg<'_, A5>, -) -> RetReg<R0> { - let r0; - asm!( - "mov {tmp}, r7", - "mov r7, {nr}", - "svc 0", - "mov r7, {tmp}", - nr = in(reg) nr.to_asm(), - tmp = out(reg) _, - inlateout("r0") a0.to_asm() => r0, - in("r1") a1.to_asm(), - in("r2") a2.to_asm(), - in("r3") a3.to_asm(), - in("r4") a4.to_asm(), - in("r5") a5.to_asm(), - options(nostack, preserves_flags) - ); - FromAsm::from_asm(r0) -} - -#[inline] -pub(in crate::backend) unsafe fn syscall6_readonly( - nr: SyscallNumber<'_>, - a0: ArgReg<'_, A0>, - a1: ArgReg<'_, A1>, - a2: ArgReg<'_, A2>, - a3: ArgReg<'_, A3>, - a4: ArgReg<'_, A4>, - a5: ArgReg<'_, A5>, -) -> RetReg<R0> { - let r0; - asm!( - "mov {tmp}, r7", - "mov r7, {nr}", - "svc 0", - "mov r7, {tmp}", - nr = in(reg) nr.to_asm(), - tmp = out(reg) _, - inlateout("r0") a0.to_asm() => r0, - in("r1") a1.to_asm(), - in("r2") a2.to_asm(), - in("r3") a3.to_asm(), - in("r4") a4.to_asm(), - in("r5") a5.to_asm(), - options(nostack, preserves_flags, readonly) - ); - FromAsm::from_asm(r0) -} |