const (
	// FuncFlagTopFrame indicates a function that appears at the top of its stack.
	// The traceback routine stop at such a function and consider that a
	// successful, complete traversal of the stack.
	// Examples of TopFrame functions include goexit, which appears
	// at the top of a user goroutine stack, and mstart, which appears
	// at the top of a system goroutine stack.
	FuncFlagTopFrame FuncFlag = 1 << iota

	BR	R1

DATA _rt0_s390x_lib_argc<>(SB)/8, $0
GLOBL _rt0_s390x_lib_argc<>(SB), NOPTR, $8
DATA _rt0_s90x_lib_argv<>(SB)/8, $0
GLOBL _rt0_s390x_lib_argv<>(SB), NOPTR, $8

TEXT runtime·rt0_go(SB),NOSPLIT|TOPFRAME,$0
	// R2 = argc; R3 = argv; R11 = temp; R13 = g; R15 = stack pointer
	// C TLS base pointer in AR0:AR1

	// initialize essential registers
	XOR	R0, R0

	SUB	$24, R15
	MOVW	R2, 8(R15) // argc

// license that can be found in the LICENSE file.

#include "go_asm.h"
#include "go_tls.h"
#include "funcdata.h"
#include "textflag.h"

#define	REGCTXT	R29

TEXT runtime·rt0_go(SB),NOSPLIT|TOPFRAME,$0
	// R3 = stack; R4 = argc; R5 = argv

	ADDV	$-24, R3
	MOVW	R4, 8(R3) // argc
	MOVV	R5, 16(R3) // argv

	// create istack out of the given (operating system) stack.
	// _cgo_init may update stackguard.

//go:build mips || mipsle

#include "go_asm.h"
#include "go_tls.h"
#include "funcdata.h"
#include "textflag.h"

#define	REGCTXT	R22

TEXT runtime·rt0_go(SB),NOSPLIT|TOPFRAME,$0
	// R29 = stack; R4 = argc; R5 = argv

	ADDU	$-12, R29
	MOVW	R4, 4(R29)	// argc
	MOVW	R5, 8(R29)	// argv

	// create istack out of the given (operating system) stack.
	// _cgo_init may update stackguard.

			println("runtime: may need to increase max user processes (ulimit -p)")
		}
		throw("runtime.newosproc")
	}
}

// mstart is the entry-point for new Ms.
// It is written in assembly, uses ABI0, is marked TOPFRAME, and calls netbsdMstart0.
func netbsdMstart()

// netbsdMstart0 is the function call that starts executing a newly
// created thread. On NetBSD, a new thread inherits the signal stack

DATA _rt0_arm_lib_argv<>(SB)/4,$0
GLOBL _rt0_arm_lib_argv<>(SB),NOPTR,$4

// using NOFRAME means do not save LR on stack.
// argc is in R0, argv is in R1.
TEXT runtime·rt0_go(SB),NOSPLIT|NOFRAME|TOPFRAME,$0
	MOVW	$0xcafebabe, R12

	// copy arguments forward on an even stack
	// use R13 instead of SP to avoid linker rewriting the offsets
	SUB	$64, R13		// plenty of scratch
	AND	$~7, R13

	JMP	runtime·rt0_go(SB)

DATA _rt0_386_lib_argc<>(SB)/4, $0
GLOBL _rt0_386_lib_argc<>(SB),NOPTR, $4
DATA _rt0_386_lib_argv<>(SB)/4, $0
GLOBL _rt0_386_lib_argv<>(SB),NOPTR, $4

TEXT runtime·rt0_go(SB),NOSPLIT|NOFRAME|TOPFRAME,$0
	// Copy arguments forward on an even stack.
	// Users of this function jump to it, they don't call it.
	MOVL	0(SP), AX
	MOVL	4(SP), BX
	SUBL	$128, SP		// plenty of scratch
	ANDL	$~15, SP

#include "go_tls.h"
#include "funcdata.h"
#include "textflag.h"
#include "asm_ppc64x.h"

#ifdef GOOS_aix
#define cgoCalleeStackSize 48
#else
#define cgoCalleeStackSize 32
#endif

TEXT runtime·rt0_go(SB),NOSPLIT|TOPFRAME,$0
	// R1 = stack; R3 = argc; R4 = argv; R13 = C TLS base pointer

	// initialize essential registers
	BL	runtime·reginit(SB)

	SUB	$(FIXED_FRAME+16), R1

// license that can be found in the LICENSE file.

#include "go_asm.h"
#include "go_tls.h"
#include "tls_arm64.h"
#include "funcdata.h"
#include "textflag.h"

TEXT runtime·rt0_go(SB),NOSPLIT|TOPFRAME,$0
	// SP = stack; R0 = argc; R1 = argv

	SUB	$32, RSP
	MOVW	R0, 8(RSP) // argc
	MOVD	R1, 16(RSP) // argv

#ifdef TLS_darwin
	// Initialize TLS.
	MOVD	ZR, g // clear g, make sure it's not junk.

DEFINE_PPC64X_FUNCDESC(runtime·sigtramp, sigtramp<>)
// cgo isn't supported on ppc64, but we need to supply a cgoSigTramp function.
DEFINE_PPC64X_FUNCDESC(runtime·cgoSigtramp, sigtramp<>)
TEXT sigtramp<>(SB),NOSPLIT|NOFRAME|TOPFRAME,$0
#else
// ppc64le doesn't need function descriptors
// Save callee-save registers in the case of signal forwarding.
// Same as on ARM64 https://golang.org/issue/31827 .
//