/*
 * Windows still insists on underscore prefixes for C function names.
 */
#if defined(_WIN32)
#define EXT(s) _##s
#else
#define EXT(s) s
#endif

/*
 * void crosscall1(void (*fn)(void), void (*setg_gcc)(void*), void *g)
 *
 * Calling into the gc tool chain, where all registers are caller save.
 * Called from standard x86 ABI, where %ebp, %ebx, %esi,
 * and %edi are callee-save, so they must be saved explicitly.
 */

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build mips64 || mips64le

.file "gcc_mips64x.S"

/*
 * void crosscall1(void (*fn)(void), void (*setg_gcc)(void *g), void *g)
 *
 * Calling into the gc tool chain, where all registers are caller save.
 * Called from standard MIPS N64 ABI, where $16-$23, $28, $30, and $f24-$f31

	MOVW 	$runtime·tls_g(SB), R2 	// arg 2: &tls_g
#else
	MOVW	$0, R2			// arg 2: not used when using platform tls
#endif
	MOVW	$setg_gcc<>(SB), R1 	// arg 1: setg
	MOVW	g, R0 			// arg 0: G
	BL	(R4) // will clobber R0-R3
nocgo:
	RET

// void setg_gcc(G*); set g called from gcc.
TEXT setg_gcc<>(SB),NOSPLIT,$0
	MOVW	R0, g
	B		runtime·save_g(SB)

#ifdef TLSG_IS_VARIABLE
#ifdef GOOS_android

// Copyright 2012 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.

.file "gcc_arm.S"

/*
 * void crosscall1(void (*fn)(void), void (*setg_gcc)(void *g), void *g)
 *
 * Calling into the gc tool chain, where all registers are caller save.
 * Called from standard ARM EABI, where r4-r11 are callee-save, so they
 * must be saved explicitly.
 */
.globl crosscall1

// save_g saves the g register into pthread-provided
// thread-local memory, so that we can call externally compiled
// ppc64 code that will overwrite this register.
//
// If !iscgo, this is a no-op.
//
// NOTE: setg_gcc<> assume this clobbers only R31.
TEXT runtime·save_g(SB),NOSPLIT|NOFRAME,$0-0
#ifndef GOOS_aix
#ifndef GOOS_openbsd
	MOVBZ	runtime·iscgo(SB), R31
	CMP	R31, $0
	BEQ	nocgo
#endif
#endif

// save_g saves the g register into pthread-provided
// thread-local memory, so that we can call externally compiled
// s390x code that will overwrite this register.
//
// If !iscgo, this is a no-op.
//
// NOTE: setg_gcc<> assume this clobbers only R10 and R11.
TEXT runtime·save_g(SB),NOSPLIT|NOFRAME,$0-0
	MOVB	runtime·iscgo(SB),  R10
	CMPBEQ	R10, $0, nocgo
	MOVW	AR0, R11
	SLD	$32, R11
	MOVW	AR1, R11
	MOVD	runtime·tls_g(SB), R10

#define EXT(s) s
#endif

// Apple's ld64 wants 4-byte alignment for ARM code sections.
// .align in both Apple as and GNU as treat n as aligning to 2**n bytes.
.align	2

/*
 * void crosscall1(void (*fn)(void), void (*setg_gcc)(void *g), void *g)
 *
 * Calling into the gc tool chain, where all registers are caller save.
 * Called from standard ARM EABI, where x19-x29 are callee-save, so they
 * must be saved explicitly, along with x30 (LR).
 */

	{"$1000", "$1000"},
	{"$1000000", "$1000000"},
	{"$1000000000", "$1000000000"},
	{"$__tsan_func_enter(SB)", "$__tsan_func_enter(SB)"},
	{"$main(SB)", "$main(SB)"},
	{"$masks<>(SB)", "$masks<>(SB)"},
	{"$setg_gcc<>(SB)", "$setg_gcc<>(SB)"},
	{"$shifts<>(SB)", "$shifts<>(SB)"},
	{"$~(1<<63)", "$9223372036854775807"},
	{"$~0x3F", "$-64"},
	{"$~15", "$-16"},
	{"(((8)&0xf)*4)(SP)", "32(SP)"},
	{"(((8-14)&0xf)*4)(SP)", "40(SP)"},

TEXT runtime·setg(SB), NOSPLIT, $0-8
	MOVV	gg+0(FP), g
	// This only happens if iscgo, so jump straight to save_g
	JAL	runtime·save_g(SB)
	RET

// void setg_gcc(G*); set g called from gcc with g in R1
TEXT setg_gcc<>(SB),NOSPLIT,$0-0
	MOVV	R1, g
	JAL	runtime·save_g(SB)
	RET

TEXT runtime·abort(SB),NOSPLIT|NOFRAME,$0-0
	MOVW	(R0), R0
	UNDEF

// AES hashing not implemented for mips64

	}

	// Execute gdb commands.
	// 'setg_gcc' is the first point where we can reproduce the issue with just one 'run' command.
	args := []string{"-nx", "-batch",
		"-iex", "add-auto-load-safe-path " + filepath.Join(testenv.GOROOT(t), "src", "runtime"),
		"-ex", "set startup-with-shell off",
		"-ex", "break setg_gcc",
		"-ex", "run",
		"-ex", "backtrace 3",
		"-ex", "disable 1",