############################################################################

##  mmglue: midipix architecture- and target-specific bits for musl libc  ##

##  Copyright (C) 2013--2023  SysDeer Technologies, LLC                   ##

##  Released under GPLv2 and GPLv3; see COPYING.MMGLUE.                   ##

############################################################################

.text

.global __cp_begin

.global __cp_end

.global __cp_cancel

.global __syscall_cp_asm

.def __cp_begin;       .scl 2; .type 32; .endef

.def __cp_end;         .scl 2; .type 32; .endef

.def __cp_cancel;      .scl 2; .type 32; .endef

.def __syscall_cp_asm; .scl 2; .type 32; .endef

__syscall_cp_asm:

__cp_begin:

	movq	(%rcx),	%rcx		# check content of ptr

	test	%ecx,	%ecx

	jnz	__cp_cancel		# thread is pending cancellation

	movq	%rdx,	    %rcx	# move water

	movq	%r8,	    %rdx	# from one glass

	movq	%r9,	    %r8 	# to another

	movq	0x28(%rsp), %r9

	movq	0x30(%rsp),%rax

	movq	%rax,	   0x28(%rsp)

	movq	0x38(%rsp),%r10

	movq	%r10,	   0x30(%rsp)

	movq	0x40(%rsp),%r10

	movq	%r10,	   0x38(%rsp)

	jmp	__syscall

__cp_end:

	ret

__cp_cancel:

	jmp	__cancel

	.section .got$__syscall_cp_asm

	.global __imp___syscall_cp_asm

__imp___syscall_cp_asm:

	.quad __syscall_cp_asm

	.linkonce discard

	.section .got$__cp_begin

	.global __imp___cp_begin

__imp___cp_begin:

	.quad __cp_begin

	.linkonce discard

	.section .got$__cp_end

	.global __imp___cp_end

__imp___cp_end:

	.quad __cp_end

	.linkonce discard

	.section .got$__cp_cancel

	.global __imp___cp_cancel

__imp___cp_cancel:

	.quad __cp_cancel

	.linkonce discard