84 lines
2.6 KiB
Go
84 lines
2.6 KiB
Go
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// Copyright 2018 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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// NOTE(rsc): _CONTEXT_CONTROL is actually 0x400001 and should include PC, SP, and LR.
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// However, empirically, LR doesn't come along on Windows 10
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// unless you also set _CONTEXT_INTEGER (0x400002).
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// Without LR, we skip over the next-to-bottom function in profiles
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// when the bottom function is frameless.
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// So we set both here, to make a working _CONTEXT_CONTROL.
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const _CONTEXT_CONTROL = 0x400003
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type neon128 struct {
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low uint64
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high int64
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}
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// See https://docs.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-arm64_nt_context
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type context struct {
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contextflags uint32
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cpsr uint32
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x [31]uint64 // fp is x[29], lr is x[30]
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xsp uint64
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pc uint64
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v [32]neon128
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fpcr uint32
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fpsr uint32
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bcr [8]uint32
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bvr [8]uint64
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wcr [2]uint32
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wvr [2]uint64
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}
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func (c *context) ip() uintptr { return uintptr(c.pc) }
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func (c *context) sp() uintptr { return uintptr(c.xsp) }
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func (c *context) lr() uintptr { return uintptr(c.x[30]) }
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func (c *context) set_ip(x uintptr) { c.pc = uint64(x) }
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func (c *context) set_sp(x uintptr) { c.xsp = uint64(x) }
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func (c *context) set_lr(x uintptr) { c.x[30] = uint64(x) }
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func dumpregs(r *context) {
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print("r0 ", hex(r.x[0]), "\n")
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print("r1 ", hex(r.x[1]), "\n")
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print("r2 ", hex(r.x[2]), "\n")
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print("r3 ", hex(r.x[3]), "\n")
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print("r4 ", hex(r.x[4]), "\n")
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print("r5 ", hex(r.x[5]), "\n")
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print("r6 ", hex(r.x[6]), "\n")
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print("r7 ", hex(r.x[7]), "\n")
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print("r8 ", hex(r.x[8]), "\n")
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print("r9 ", hex(r.x[9]), "\n")
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print("r10 ", hex(r.x[10]), "\n")
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print("r11 ", hex(r.x[11]), "\n")
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print("r12 ", hex(r.x[12]), "\n")
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print("r13 ", hex(r.x[13]), "\n")
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print("r14 ", hex(r.x[14]), "\n")
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print("r15 ", hex(r.x[15]), "\n")
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print("r16 ", hex(r.x[16]), "\n")
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print("r17 ", hex(r.x[17]), "\n")
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print("r18 ", hex(r.x[18]), "\n")
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print("r19 ", hex(r.x[19]), "\n")
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print("r20 ", hex(r.x[20]), "\n")
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print("r21 ", hex(r.x[21]), "\n")
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print("r22 ", hex(r.x[22]), "\n")
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print("r23 ", hex(r.x[23]), "\n")
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print("r24 ", hex(r.x[24]), "\n")
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print("r25 ", hex(r.x[25]), "\n")
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print("r26 ", hex(r.x[26]), "\n")
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print("r27 ", hex(r.x[27]), "\n")
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print("r28 ", hex(r.x[28]), "\n")
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print("r29 ", hex(r.x[29]), "\n")
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print("lr ", hex(r.x[30]), "\n")
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print("sp ", hex(r.xsp), "\n")
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print("pc ", hex(r.pc), "\n")
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print("cpsr ", hex(r.cpsr), "\n")
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}
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func stackcheck() {
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// TODO: not implemented on ARM
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}
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