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 {
17	return (*mcontext)(unsafe.Pointer(&(*ucontext)(c.ctxt).uc_mcontext))
18}
19
20func (c *sigctxt) rax() uint64 { return c.regs().mc_rax }
21func (c *sigctxt) rbx() uint64 { return c.regs().mc_rbx }
22func (c *sigctxt) rcx() uint64 { return c.regs().mc_rcx }
23func (c *sigctxt) rdx() uint64 { return c.regs().mc_rdx }
24func (c *sigctxt) rdi() uint64 { return c.regs().mc_rdi }
25func (c *sigctxt) rsi() uint64 { return c.regs().mc_rsi }
26func (c *sigctxt) rbp() uint64 { return c.regs().mc_rbp }
27func (c *sigctxt) rsp() uint64 { return c.regs().mc_rsp }
28func (c *sigctxt) r8() uint64  { return c.regs().mc_r8 }
29func (c *sigctxt) r9() uint64  { return c.regs().mc_r9 }
30func (c *sigctxt) r10() uint64 { return c.regs().mc_r10 }
31func (c *sigctxt) r11() uint64 { return c.regs().mc_r11 }
32func (c *sigctxt) r12() uint64 { return c.regs().mc_r12 }
33func (c *sigctxt) r13() uint64 { return c.regs().mc_r13 }
34func (c *sigctxt) r14() uint64 { return c.regs().mc_r14 }
35func (c *sigctxt) r15() uint64 { return c.regs().mc_r15 }
36
37//go:nosplit
38//go:nowritebarrierrec
39func (c *sigctxt) rip() uint64 { return c.regs().mc_rip }
40
41func (c *sigctxt) rflags() uint64  { return c.regs().mc_rflags }
42func (c *sigctxt) cs() uint64      { return c.regs().mc_cs }
43func (c *sigctxt) fs() uint64      { return c.regs().mc_ss }
44func (c *sigctxt) gs() uint64      { return c.regs().mc_ss }
45func (c *sigctxt) sigcode() uint64 { return uint64(c.info.si_code) }
46func (c *sigctxt) sigaddr() uint64 { return c.info.si_addr }
47
48func (c *sigctxt) set_rip(x uint64)     { c.regs().mc_rip = x }
49func (c *sigctxt) set_rsp(x uint64)     { c.regs().mc_rsp = x }
50func (c *sigctxt) set_sigcode(x uint64) { c.info.si_code = int32(x) }
51func (c *sigctxt) set_sigaddr(x uint64) { c.info.si_addr = x }
52