* and %edi are callee-save, so they must be saved explicitly.
 */
.globl EXT(crosscall1)
EXT(crosscall1):
	pushl %ebp
	movl %esp, %ebp
	pushl %ebx
	pushl %esi
	pushl %edi

	movl 16(%ebp), %eax	/* g */
	pushl %eax
	movl 12(%ebp), %eax	/* setg_gcc */
	call *%eax
	popl %eax

	movl 8(%ebp), %eax	/* fn */
	call *%eax

	popl %edi
	popl %esi
	popl %ebx
	popl %ebp

	c.ecx = c.eip
}

func dumpregs(r *context) {
	print("eax     ", hex(r.eax), "\n")
	print("ebx     ", hex(r.ebx), "\n")
	print("ecx     ", hex(r.ecx), "\n")
	print("edx     ", hex(r.edx), "\n")
	print("edi     ", hex(r.edi), "\n")
	print("esi     ", hex(r.esi), "\n")
	print("ebp     ", hex(r.ebp), "\n")
	print("esp     ", hex(r.esp), "\n")
	print("eip     ", hex(r.eip), "\n")
	print("eflags  ", hex(r.eflags), "\n")

	"unsafe"
)

func dumpregs(c *sigctxt) {
	print("eax    ", hex(c.eax()), "\n")
	print("ebx    ", hex(c.ebx()), "\n")
	print("ecx    ", hex(c.ecx()), "\n")
	print("edx    ", hex(c.edx()), "\n")
	print("edi    ", hex(c.edi()), "\n")
	print("esi    ", hex(c.esi()), "\n")
	print("ebp    ", hex(c.ebp()), "\n")
	print("esp    ", hex(c.esp()), "\n")
	print("eip    ", hex(c.eip()), "\n")
	print("eflags ", hex(c.eflags()), "\n")

//go:build linux && (386 || amd64)

package unix

import "unsafe"

// PtraceRegs386 is the registers used by 386 binaries.
type PtraceRegs386 struct {
	Ebx      int32
	Ecx      int32
	Edx      int32
	Esi      int32
	Edi      int32
	Ebp      int32
	Eax      int32
	Xds      int32
	Xes      int32
	Xfs      int32
	Xgs      int32
	Orig_eax int32
	Eip      int32
	Xcs      int32
	Eflags   int32
	Esp      int32

	R11W: "R11W",
	R12W: "R12W",
	R13W: "R13W",
	R14W: "R14W",
	R15W: "R15W",
	EAX:  "EAX",
	ECX:  "ECX",
	EDX:  "EDX",
	EBX:  "EBX",
	ESP:  "ESP",
	EBP:  "EBP",
	ESI:  "ESI",
	EDI:  "EDI",
	R8L:  "R8L",
	R9L:  "R9L",
	R10L: "R10L",
	R11L: "R11L",
	R12L: "R12L",
	R13L: "R13L",
	R14L: "R14L",
	R15L: "R15L",
	RAX:  "RAX",
	RCX:  "RCX",
	RDX:  "RDX",
	RBX:  "RBX",

type sigcontext struct {
	gs            uint16
	__gsh         uint16
	fs            uint16
	__fsh         uint16
	es            uint16
	__esh         uint16
	ds            uint16
	__dsh         uint16
	edi           uint32
	esi           uint32
	ebp           uint32
	esp           uint32
	ebx           uint32
	edx           uint32
	ecx           uint32
	eax           uint32
	trapno        uint32

	es        exceptionstate64
	ss        regs64
	fs        floatstate64
	pad_cgo_0 [4]byte
}

type regs32 struct {
	eax    uint32
	ebx    uint32
	ecx    uint32
	edx    uint32
	edi    uint32
	esi    uint32
	ebp    uint32
	esp    uint32
	ss     uint32
	eflags uint32
	eip    uint32
	cs     uint32
	ds     uint32
	es     uint32
	fs     uint32
	gs     uint32
}

	Status int32
	Addr   uintptr
	Value  [4]byte
	_      [32]byte
}

type Sigset_t struct {
	Val [4]uint32
}

type Reg struct {
	Fs     uint32
	Es     uint32
	Ds     uint32
	Edi    uint32
	Esi    uint32
	Ebp    uint32
	Isp    uint32
	Ebx    uint32
	Edx    uint32
	Ecx    uint32
	Eax    uint32
	Trapno uint32
	Err    uint32
	Eip    uint32
	Cs     uint32

	R12W: "%r12w",
	R13W: "%r13w",
	R14W: "%r14w",
	R15W: "%r15w",
	EAX:  "%eax",
	ECX:  "%ecx",
	EDX:  "%edx",
	EBX:  "%ebx",
	ESP:  "%esp",
	EBP:  "%ebp",
	ESI:  "%esi",
	EDI:  "%edi",
	R8L:  "%r8d",
	R9L:  "%r9d",
	R10L: "%r10d",
	R11L: "%r11d",
	R12L: "%r12d",
	R13L: "%r13d",
	R14L: "%r14d",
	R15L: "%r15d",
	RAX:  "%rax",
	RCX:  "%rcx",
	RDX:  "%rdx",

	R10W: "R10",
	R11W: "R11",
	R12W: "R12",
	R13W: "R13",
	R14W: "R14",
	R15W: "R15",
	EAX:  "AX",
	ECX:  "CX",
	EDX:  "DX",
	EBX:  "BX",
	ESP:  "SP",
	EBP:  "BP",
	ESI:  "SI",
	EDI:  "DI",
	R8L:  "R8",
	R9L:  "R9",
	R10L: "R10",
	R11L: "R11",
	R12L: "R12",
	R13L: "R13",
	R14L: "R14",
	R15L: "R15",
	RAX:  "AX",
	RCX:  "CX",
	RDX:  "DX",
	RBX:  "BX",
	RSP:  "SP",