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// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build mips || mipsle

#include "textflag.h"

// Set the x_crosscall2_ptr C function pointer variable point to crosscall2.
// It's such a pointer chain: _crosscall2_ptr -> x_crosscall2_ptr -> crosscall2
// Use a local trampoline, to avoid taking the address of a dynamically exported
// function.
TEXT ·set_crosscall2(SB),NOSPLIT,$0-0
	MOVW	_crosscall2_ptr(SB), R5
	MOVW	$crosscall2_trampoline<>(SB), R6
	MOVW	R6, (R5)
	RET

TEXT crosscall2_trampoline<>(SB),NOSPLIT,$0-0
	JMP	crosscall2(SB)

// Called by C code generated by cmd/cgo.
// func crosscall2(fn, a unsafe.Pointer, n int32, ctxt uintptr)
// Saves C callee-saved registers and calls cgocallback with three arguments.
// fn is the PC of a func(a unsafe.Pointer) function.
TEXT crosscall2(SB),NOSPLIT|NOFRAME,$0
	/*
	 * We still need to save all callee save register as before, and then
	 *  push 3 args for fn (R4, R5, R7), skipping R6.
	 * Also note that at procedure entry in gc world, 4(R29) will be the
	 *  first arg.
	 */

// Space for 9 caller-saved GPR + LR + 6 caller-saved FPR.
	// O32 ABI allows us to smash 16 bytes argument area of caller frame.
#ifndef GOMIPS_softfloat
	SUBU	$(4*14+8*6-16), R29
#else
	SUBU	$(4*14-16), R29	// For soft-float, no FPR.
#endif
	MOVW	R4, (4*1)(R29)	// fn unsafe.Pointer
	MOVW	R5, (4*2)(R29)	// a unsafe.Pointer
	MOVW	R7, (4*3)(R29)	// ctxt uintptr
	MOVW	R16, (4*4)(R29)
	MOVW	R17, (4*5)(R29)
	MOVW	R18, (4*6)(R29)
	MOVW	R19, (4*7)(R29)
	MOVW	R20, (4*8)(R29)
	MOVW	R21, (4*9)(R29)
	MOVW	R22, (4*10)(R29)
	MOVW	R23, (4*11)(R29)
	MOVW	g, (4*12)(R29)
	MOVW	R31, (4*13)(R29)
#ifndef GOMIPS_softfloat
	MOVD	F20, (4*14)(R29)
	MOVD	F22, (4*14+8*1)(R29)
	MOVD	F24, (4*14+8*2)(R29)
	MOVD	F26, (4*14+8*3)(R29)
	MOVD	F28, (4*14+8*4)(R29)
	MOVD	F30, (4*14+8*5)(R29)
#endif
	JAL	runtime·load_g(SB)

JAL	runtime·cgocallback(SB)

MOVW	(4*4)(R29), R16
	MOVW	(4*5)(R29), R17
	MOVW	(4*6)(R29), R18
	MOVW	(4*7)(R29), R19
	MOVW	(4*8)(R29), R20
	MOVW	(4*9)(R29), R21
	MOVW	(4*10)(R29), R22
	MOVW	(4*11)(R29), R23
	MOVW	(4*12)(R29), g
	MOVW	(4*13)(R29), R31
#ifndef GOMIPS_softfloat
	MOVD	(4*14)(R29), F20
	MOVD	(4*14+8*1)(R29), F22
	MOVD	(4*14+8*2)(R29), F24
	MOVD	(4*14+8*3)(R29), F26
	MOVD	(4*14+8*4)(R29), F28
	MOVD	(4*14+8*5)(R29), F30

ADDU	$(4*14+8*6-16), R29
#else
	ADDU	$(4*14-16), R29
#endif
	RET

Batal

⬅ runtime 81 item

Nama	Tipe	Ukuran	Diubah	Aksi
📄abi_amd64.h	h	2.7 KB	2024-02-02 18:09	✏️ 👁️
📄abi_arm64.h	h	1.5 KB	2024-02-02 18:09	✏️ 👁️
📄abi_loong64.h	h	1.9 KB	2024-02-02 18:09	✏️ 👁️
📄abi_ppc64x.h	h	6.6 KB	2024-02-02 18:09	✏️ 👁️
📄asm_386.s	s	1.2 KB	2024-02-02 18:09	✏️ 👁️
📄asm_amd64.s	s	1.4 KB	2024-02-02 18:09	✏️ 👁️
📄asm_arm.s	s	2.2 KB	2024-02-02 18:09	✏️ 👁️
📄asm_arm64.s	s	1.4 KB	2024-02-02 18:09	✏️ 👁️
📄asm_loong64.s	s	1.5 KB	2024-02-02 18:09	✏️ 👁️
📄asm_mips64x.s	s	2.5 KB	2024-02-02 18:09	✏️ 👁️
📄asm_mipsx.s	s	2.4 KB	2024-02-02 18:09	✏️ 👁️
📄asm_ppc64x.s	s	2.4 KB	2024-02-02 18:09	✏️ 👁️
📄asm_riscv64.s	s	2.3 KB	2024-02-02 18:09	✏️ 👁️
📄asm_s390x.s	s	1.7 KB	2024-02-02 18:09	✏️ 👁️
📄asm_wasm.s	s	270 B	2024-02-02 18:09	✏️ 👁️
🔵callbacks.go	go	5.6 KB	2024-02-02 18:09	✏️ 👁️
🔵callbacks_aix.go	go	402 B	2024-02-02 18:09	✏️ 👁️
🔵callbacks_traceback.go	go	475 B	2024-02-02 18:09	✏️ 👁️
🔵cgo.go	go	1.1 KB	2024-02-02 18:09	✏️ 👁️
🔵dragonfly.go	go	485 B	2024-02-02 18:09	✏️ 👁️
🔵freebsd.go	go	549 B	2024-02-02 18:09	✏️ 👁️
📄gcc_386.S	s	959 B	2024-02-02 18:09	✏️ 👁️
📄gcc_aix_ppc64.S	s	2.7 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_aix_ppc64.c	c	1.3 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_amd64.S	s	1.1 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_android.c	c	2.6 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_arm.S	s	849 B	2024-02-02 18:09	✏️ 👁️
📄gcc_arm64.S	s	1.7 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_context.c	c	466 B	2024-02-02 18:09	✏️ 👁️
📄gcc_darwin_amd64.c	c	1.3 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_darwin_arm64.c	c	3.6 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_dragonfly_amd64.c	c	1.2 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_fatalf.c	c	526 B	2024-02-02 18:09	✏️ 👁️
📄gcc_freebsd.c	c	1.5 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_freebsd_amd64.c	c	1.5 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_freebsd_sigaction.c	c	2 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_libinit.c	c	5.4 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_libinit_windows.c	c	4.2 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_linux.c	c	1.4 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_linux_amd64.c	c	2.3 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_linux_arm64.c	c	2.2 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_linux_ppc64x.S	s	2 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_linux_s390x.c	c	1.3 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_loong64.S	s	1.5 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_mips64x.S	s	1.8 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_mipsx.S	s	1.5 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_mmap.c	c	916 B	2024-02-02 18:09	✏️ 👁️
📄gcc_netbsd.c	c	1.7 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_openbsd.c	c	1.2 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_ppc64x.c	c	1.3 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_riscv64.S	s	1.6 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_s390x.S	s	1.4 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_setenv.c	c	487 B	2024-02-02 18:09	✏️ 👁️
📄gcc_sigaction.c	c	2.1 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_signal2_ios_arm64.c	c	508 B	2024-02-02 18:09	✏️ 👁️
📄gcc_signal_ios_arm64.c	c	6 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_signal_ios_nolldb.c	c	312 B	2024-02-02 18:09	✏️ 👁️
📄gcc_solaris_amd64.c	c	2 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_stack_darwin.c	c	470 B	2024-02-02 18:09	✏️ 👁️
📄gcc_stack_unix.c	c	1.1 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_stack_windows.c	c	245 B	2024-02-02 18:09	✏️ 👁️
📄gcc_traceback.c	c	1.5 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_util.c	c	1.8 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_windows_386.c	c	1.1 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_windows_amd64.c	c	1 KB	2024-02-02 18:09	✏️ 👁️
📄gcc_windows_arm64.c	c	764 B	2024-02-02 18:09	✏️ 👁️
🔵handle.go	go	3.6 KB	2024-02-02 18:09	✏️ 👁️
🔵handle_test.go	go	1.8 KB	2024-02-02 18:09	✏️ 👁️
🔵iscgo.go	go	646 B	2024-02-02 18:09	✏️ 👁️
📄libcgo.h	h	3.5 KB	2024-02-02 18:09	✏️ 👁️
📄libcgo_unix.h	h	684 B	2024-02-02 18:09	✏️ 👁️
📄libcgo_windows.h	h	258 B	2024-02-02 18:09	✏️ 👁️
🔵linux.go	go	2.7 KB	2024-02-02 18:09	✏️ 👁️
📄linux_syscall.c	c	1.9 KB	2024-02-02 18:09	✏️ 👁️
🔵mmap.go	go	1 KB	2024-02-02 18:09	✏️ 👁️
🔵netbsd.go	go	546 B	2024-02-02 18:09	✏️ 👁️
🔵openbsd.go	go	566 B	2024-02-02 18:09	✏️ 👁️
🔵setenv.go	go	597 B	2024-02-02 18:09	✏️ 👁️
🔵sigaction.go	go	877 B	2024-02-02 18:09	✏️ 👁️
🔵signal_ios_arm64.go	go	270 B	2024-02-02 18:09	✏️ 👁️
📄signal_ios_arm64.s	s	1.8 KB	2024-02-02 18:09	✏️ 👁️

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