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 5 package runtime 6 7 import "unsafe" 8 9 type sigctxt struct { 10 info *siginfo 11 ctxt unsafe.Pointer 12 } 13 14 func (c *sigctxt) regs() *mcontextt { return &(*ucontextt)(c.ctxt).uc_mcontext } 15 func (c *sigctxt) eax() uint32 { return c.regs().__gregs[_REG_EAX] } 16 func (c *sigctxt) ebx() uint32 { return c.regs().__gregs[_REG_EBX] } 17 func (c *sigctxt) ecx() uint32 { return c.regs().__gregs[_REG_ECX] } 18 func (c *sigctxt) edx() uint32 { return c.regs().__gregs[_REG_EDX] } 19 func (c *sigctxt) edi() uint32 { return c.regs().__gregs[_REG_EDI] } 20 func (c *sigctxt) esi() uint32 { return c.regs().__gregs[_REG_ESI] } 21 func (c *sigctxt) ebp() uint32 { return c.regs().__gregs[_REG_EBP] } 22 func (c *sigctxt) esp() uint32 { return c.regs().__gregs[_REG_UESP] } 23 func (c *sigctxt) eip() uint32 { return c.regs().__gregs[_REG_EIP] } 24 func (c *sigctxt) eflags() uint32 { return c.regs().__gregs[_REG_EFL] } 25 func (c *sigctxt) cs() uint32 { return uint32(c.regs().__gregs[_REG_CS]) } 26 func (c *sigctxt) fs() uint32 { return uint32(c.regs().__gregs[_REG_FS]) } 27 func (c *sigctxt) gs() uint32 { return uint32(c.regs().__gregs[_REG_GS]) } 28 func (c *sigctxt) sigcode() uint32 { return uint32(c.info._code) } 29 func (c *sigctxt) sigaddr() uint32 { 30 return uint32(*(*uint32)(unsafe.Pointer(&c.info._reason[0]))) 31 } 32 33 func (c *sigctxt) set_eip(x uint32) { c.regs().__gregs[_REG_EIP] = x } 34 func (c *sigctxt) set_esp(x uint32) { c.regs().__gregs[_REG_UESP] = x } 35 func (c *sigctxt) set_sigcode(x uint32) { c.info._code = int32(x) } 36 func (c *sigctxt) set_sigaddr(x uint32) { 37 *(*uint32)(unsafe.Pointer(&c.info._reason[0])) = x 38 } 39
