Brad Fitzpatrick | 5194744 | 2016-03-01 22:57:46 +0000 | [diff] [blame] | 1 | // Copyright 2013 The Go Authors. All rights reserved. |
Russ Cox | aac17fd | 2014-11-11 23:00:29 -0500 | [diff] [blame] | 2 | // Use of this source code is governed by a BSD-style |
| 3 | // license that can be found in the LICENSE file. |
| 4 | |
| 5 | package runtime |
| 6 | |
| 7 | import "unsafe" |
| 8 | |
| 9 | type sigctxt struct { |
| 10 | info *siginfo |
| 11 | ctxt unsafe.Pointer |
| 12 | } |
| 13 | |
Ian Lance Taylor | d03e8b2 | 2016-10-04 07:11:55 -0700 | [diff] [blame] | 14 | //go:nosplit |
| 15 | //go:nowritebarrierrec |
Russ Cox | aac17fd | 2014-11-11 23:00:29 -0500 | [diff] [blame] | 16 | func (c *sigctxt) regs() *mcontext { |
| 17 | return (*mcontext)(unsafe.Pointer(&(*ucontext)(c.ctxt).uc_mcontext)) |
| 18 | } |
Ian Lance Taylor | d03e8b2 | 2016-10-04 07:11:55 -0700 | [diff] [blame] | 19 | |
| 20 | func (c *sigctxt) rax() uint64 { return c.regs().mc_rax } |
| 21 | func (c *sigctxt) rbx() uint64 { return c.regs().mc_rbx } |
| 22 | func (c *sigctxt) rcx() uint64 { return c.regs().mc_rcx } |
| 23 | func (c *sigctxt) rdx() uint64 { return c.regs().mc_rdx } |
| 24 | func (c *sigctxt) rdi() uint64 { return c.regs().mc_rdi } |
| 25 | func (c *sigctxt) rsi() uint64 { return c.regs().mc_rsi } |
| 26 | func (c *sigctxt) rbp() uint64 { return c.regs().mc_rbp } |
| 27 | func (c *sigctxt) rsp() uint64 { return c.regs().mc_rsp } |
| 28 | func (c *sigctxt) r8() uint64 { return c.regs().mc_r8 } |
| 29 | func (c *sigctxt) r9() uint64 { return c.regs().mc_r9 } |
| 30 | func (c *sigctxt) r10() uint64 { return c.regs().mc_r10 } |
| 31 | func (c *sigctxt) r11() uint64 { return c.regs().mc_r11 } |
| 32 | func (c *sigctxt) r12() uint64 { return c.regs().mc_r12 } |
| 33 | func (c *sigctxt) r13() uint64 { return c.regs().mc_r13 } |
| 34 | func (c *sigctxt) r14() uint64 { return c.regs().mc_r14 } |
| 35 | func (c *sigctxt) r15() uint64 { return c.regs().mc_r15 } |
| 36 | |
| 37 | //go:nosplit |
| 38 | //go:nowritebarrierrec |
| 39 | func (c *sigctxt) rip() uint64 { return c.regs().mc_rip } |
| 40 | |
Russ Cox | aac17fd | 2014-11-11 23:00:29 -0500 | [diff] [blame] | 41 | func (c *sigctxt) rflags() uint64 { return c.regs().mc_rflags } |
Matthew Dempsky | a03bdc3 | 2016-02-29 15:01:00 -0800 | [diff] [blame] | 42 | func (c *sigctxt) cs() uint64 { return c.regs().mc_cs } |
Russ Cox | aac17fd | 2014-11-11 23:00:29 -0500 | [diff] [blame] | 43 | func (c *sigctxt) fs() uint64 { return uint64(c.regs().mc_fs) } |
| 44 | func (c *sigctxt) gs() uint64 { return uint64(c.regs().mc_gs) } |
| 45 | func (c *sigctxt) sigcode() uint64 { return uint64(c.info.si_code) } |
Matthew Dempsky | a03bdc3 | 2016-02-29 15:01:00 -0800 | [diff] [blame] | 46 | func (c *sigctxt) sigaddr() uint64 { return c.info.si_addr } |
Russ Cox | aac17fd | 2014-11-11 23:00:29 -0500 | [diff] [blame] | 47 | |
| 48 | func (c *sigctxt) set_rip(x uint64) { c.regs().mc_rip = x } |
| 49 | func (c *sigctxt) set_rsp(x uint64) { c.regs().mc_rsp = x } |
| 50 | func (c *sigctxt) set_sigcode(x uint64) { c.info.si_code = int32(x) } |
| 51 | func (c *sigctxt) set_sigaddr(x uint64) { c.info.si_addr = x } |