1// Copyright 2013 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package runtime
6
7import "unsafe"
8
9type sigctxt struct {
10	info *siginfo
11	ctxt unsafe.Pointer
12}
13
14//go:nosplit
15//go:nowritebarrierrec
16func (c *sigctxt) regs() *mcontext { return &(*ucontext)(c.ctxt).uc_mcontext }
17
18func (c *sigctxt) eax() uint32 { return c.regs().mc_eax }
19func (c *sigctxt) ebx() uint32 { return c.regs().mc_ebx }
20func (c *sigctxt) ecx() uint32 { return c.regs().mc_ecx }
21func (c *sigctxt) edx() uint32 { return c.regs().mc_edx }
22func (c *sigctxt) edi() uint32 { return c.regs().mc_edi }
23func (c *sigctxt) esi() uint32 { return c.regs().mc_esi }
24func (c *sigctxt) ebp() uint32 { return c.regs().mc_ebp }
25func (c *sigctxt) esp() uint32 { return c.regs().mc_esp }
26
27//go:nosplit
28//go:nowritebarrierrec
29func (c *sigctxt) eip() uint32 { return c.regs().mc_eip }
30
31func (c *sigctxt) eflags() uint32  { return c.regs().mc_eflags }
32func (c *sigctxt) cs() uint32      { return c.regs().mc_cs }
33func (c *sigctxt) fs() uint32      { return c.regs().mc_fs }
34func (c *sigctxt) gs() uint32      { return c.regs().mc_gs }
35func (c *sigctxt) sigcode() uint32 { return uint32(c.info.si_code) }
36func (c *sigctxt) sigaddr() uint32 { return uint32(c.info.si_addr) }
37
38func (c *sigctxt) set_eip(x uint32)     { c.regs().mc_eip = x }
39func (c *sigctxt) set_esp(x uint32)     { c.regs().mc_esp = x }
40func (c *sigctxt) set_sigcode(x uint32) { c.info.si_code = int32(x) }
41func (c *sigctxt) set_sigaddr(x uint32) { c.info.si_addr = uintptr(x) }
42