mirror of https://go.googlesource.com/go
89 lines
2.3 KiB
Go
89 lines
2.3 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package runtime
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const _CONTEXT_CONTROL = 0x10001
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type floatingsavearea struct {
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controlword uint32
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statusword uint32
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tagword uint32
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erroroffset uint32
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errorselector uint32
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dataoffset uint32
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dataselector uint32
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registerarea [80]uint8
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cr0npxstate uint32
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}
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type context struct {
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contextflags uint32
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dr0 uint32
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dr1 uint32
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dr2 uint32
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dr3 uint32
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dr6 uint32
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dr7 uint32
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floatsave floatingsavearea
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seggs uint32
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segfs uint32
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seges uint32
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segds uint32
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edi uint32
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esi uint32
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ebx uint32
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edx uint32
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ecx uint32
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eax uint32
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ebp uint32
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eip uint32
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segcs uint32
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eflags uint32
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esp uint32
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segss uint32
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extendedregisters [512]uint8
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}
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func (c *context) ip() uintptr { return uintptr(c.eip) }
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func (c *context) sp() uintptr { return uintptr(c.esp) }
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// 386 does not have link register, so this returns 0.
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func (c *context) lr() uintptr { return 0 }
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func (c *context) set_lr(x uintptr) {}
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func (c *context) set_ip(x uintptr) { c.eip = uint32(x) }
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func (c *context) set_sp(x uintptr) { c.esp = uint32(x) }
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// 386 does not have frame pointer register.
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func (c *context) set_fp(x uintptr) {}
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func prepareContextForSigResume(c *context) {
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c.edx = c.esp
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c.ecx = c.eip
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}
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func dumpregs(r *context) {
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print("eax ", hex(r.eax), "\n")
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print("ebx ", hex(r.ebx), "\n")
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print("ecx ", hex(r.ecx), "\n")
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print("edx ", hex(r.edx), "\n")
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print("edi ", hex(r.edi), "\n")
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print("esi ", hex(r.esi), "\n")
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print("ebp ", hex(r.ebp), "\n")
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print("esp ", hex(r.esp), "\n")
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print("eip ", hex(r.eip), "\n")
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print("eflags ", hex(r.eflags), "\n")
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print("cs ", hex(r.segcs), "\n")
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print("fs ", hex(r.segfs), "\n")
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print("gs ", hex(r.seggs), "\n")
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}
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// _DISPATCHER_CONTEXT is not defined on 386.
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type _DISPATCHER_CONTEXT struct{}
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func (c *_DISPATCHER_CONTEXT) ctx() *context {
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return nil
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}
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