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 //go:nosplit 15 //go:nowritebarrierrec 16 func (c *sigctxt) regs() *sigcontext { 17 return (*sigcontext)(c.ctxt) 18 } 19 20 func (c *sigctxt) eax() uint32 { return c.regs().sc_eax } 21 func (c *sigctxt) ebx() uint32 { return c.regs().sc_ebx } 22 func (c *sigctxt) ecx() uint32 { return c.regs().sc_ecx } 23 func (c *sigctxt) edx() uint32 { return c.regs().sc_edx } 24 func (c *sigctxt) edi() uint32 { return c.regs().sc_edi } 25 func (c *sigctxt) esi() uint32 { return c.regs().sc_esi } 26 func (c *sigctxt) ebp() uint32 { return c.regs().sc_ebp } 27 func (c *sigctxt) esp() uint32 { return c.regs().sc_esp } 28 29 //go:nosplit 30 //go:nowritebarrierrec 31 func (c *sigctxt) eip() uint32 { return c.regs().sc_eip } 32 33 func (c *sigctxt) eflags() uint32 { return c.regs().sc_eflags } 34 func (c *sigctxt) cs() uint32 { return c.regs().sc_cs } 35 func (c *sigctxt) fs() uint32 { return c.regs().sc_fs } 36 func (c *sigctxt) gs() uint32 { return c.regs().sc_gs } 37 func (c *sigctxt) sigcode() uint32 { return uint32(c.info.si_code) } 38 func (c *sigctxt) sigaddr() uint32 { 39 return *(*uint32)(add(unsafe.Pointer(c.info), 12)) 40 } 41 42 func (c *sigctxt) set_eip(x uint32) { c.regs().sc_eip = x } 43 func (c *sigctxt) set_esp(x uint32) { c.regs().sc_esp = x } 44 func (c *sigctxt) set_sigcode(x uint32) { c.info.si_code = int32(x) } 45 func (c *sigctxt) set_sigaddr(x uint32) { 46 *(*uint32)(add(unsafe.Pointer(c.info), 12)) = x 47 } 48
