blob: 8f7198cd05e33aea8143867c9803a4463e2bbcbd (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/codegen/ppc/constants-ppc.h"
#include "src/diagnostics/eh-frame.h"
namespace v8 {
namespace internal {
const int EhFrameConstants::kCodeAlignmentFactor = 4;
// all PPC are 4 bytes instruction
const int EhFrameConstants::kDataAlignmentFactor = -8; // 64-bit always -8
void EhFrameWriter::WriteReturnAddressRegisterCode() {
WriteULeb128(kLrDwarfCode);
}
void EhFrameWriter::WriteInitialStateInCie() {
SetBaseAddressRegisterAndOffset(fp, 0);
RecordRegisterNotModified(kLrDwarfCode);
}
// static
int EhFrameWriter::RegisterToDwarfCode(Register name) {
switch (name.code()) {
case kRegCode_fp:
return kFpDwarfCode;
case kRegCode_sp:
return kSpDwarfCode;
case kRegCode_r0:
return kR0DwarfCode;
default:
UNIMPLEMENTED();
}
}
#ifdef ENABLE_DISASSEMBLER
// static
const char* EhFrameDisassembler::DwarfRegisterCodeToString(int code) {
switch (code) {
case kFpDwarfCode:
return "fp";
case kSpDwarfCode:
return "sp";
default:
UNIMPLEMENTED();
}
}
#endif
} // namespace internal
} // namespace v8
|
