2 +----------------------------------------------------------------------+
4 +----------------------------------------------------------------------+
5 | Copyright (c) 2010-present Facebook, Inc. (http://www.facebook.com) |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
19 ///////////////////////////////////////////////////////////////////////////////
21 inline const uint8_t* EHFrameDesc::Entry::get() const {
25 inline uint32_t EHFrameDesc::Entry::length() const {
26 return *(uint32_t*)(&m_vec
[m_idx
]);
29 inline uint32_t EHFrameDesc::Entry::cie_off() const {
30 return *(uint32_t*)(&m_vec
[m_idx
+ sizeof(uint32_t)]);
33 inline CodeAddress
EHFrameDesc::FDE::start() const {
34 auto constexpr off
= sizeof(uint32_t) + sizeof(uint32_t);
35 return *(CodeAddress
*)(&m_vec
[m_idx
+ off
]);
38 inline size_t EHFrameDesc::FDE::range() const {
39 auto constexpr off
= sizeof(uint32_t) + sizeof(uint32_t) +
41 return *(size_t*)(&m_vec
[m_idx
+ off
]);
44 ///////////////////////////////////////////////////////////////////////////////
46 inline EHFrameDesc::CIE
EHFrameDesc::cie() const {
47 assertx(m_buf
!= nullptr);
48 return CIE(*m_buf
, 0);
52 inline void EHFrameDesc::for_each_fde(F f
) const {
53 assertx(m_buf
!= nullptr);
55 auto const cie_len
= cie().length();
56 auto idx
= sizeof(cie_len
) + cie_len
;
58 while (idx
< m_buf
->size()) {
59 auto fde
= FDE(*m_buf
, idx
);
60 auto const fde_len
= fde
.length();
62 if (fde_len
!= 0) f(fde
); // skip the null-terminating FDE
64 idx
+= sizeof(fde_len
) + fde_len
;
65 assertx(fde_len
!= 0 || idx
== m_buf
->size());
69 ///////////////////////////////////////////////////////////////////////////////