FazBrowse GitHub Viewer | Trending |
URL:
| Home
Tools: [Download Repo ZIP]   [Original HTTPS Page]

sea: split sea binary manipulation code · nodejs/node@957292e · GitHub

/ node Public

Commit 957292e

Browse files
joyeecheung
authored and
aduh95
committed
sea: split sea binary manipulation code
Split the sea binary manipulation code to a seperate file so that adding more low-level binary manipulation code doesn't clobber the higher-level code. PR-URL: #61167 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
1 parent fbe4da5 commit 957292e

4 files changed

Lines changed: 68 additions & 39 deletions

File tree

‎node.gyp‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -142,6 +142,7 @@
142142
'src/node_report_module.cc',
143143
'src/node_report_utils.cc',
144144
'src/node_sea.cc',
145+
'src/node_sea_bin.cc',
145146
'src/node_serdes.cc',
146147
'src/node_shadow_realm.cc',
147148
'src/node_snapshotable.cc',

‎src/node_sea.cc‎

Lines changed: 0 additions & 39 deletions
Original file line numberDiff line numberDiff line change
@@ -14,15 +14,6 @@
1414
#include "simdjson.h"
1515
#include "util-inl.h"
1616

17-
// The POSTJECT_SENTINEL_FUSE macro is a string of random characters selected by
18-
// the Node.js project that is present only once in the entire binary. It is
19-
// used by the postject_has_resource() function to efficiently detect if a
20-
// resource has been injected. See
21-
// https://github.com/nodejs/postject/blob/35343439cac8c488f2596d7c4c1dddfec1fddcae/postject-api.h#L42-L45.
22-
#define POSTJECT_SENTINEL_FUSE "NODE_SEA_FUSE_fce680ab2cc467b6e072b8b5df1996b2"
23-
#include "postject-api.h"
24-
#undef POSTJECT_SENTINEL_FUSE
25-
2617
#include <memory>
2718
#include <string_view>
2819
#include <tuple>
@@ -233,33 +224,6 @@ SeaResource SeaDeserializer::Read() {
233224
exec_argv};
234225
}
235226

236-
std::string_view FindSingleExecutableBlob() {
237-
#if !defined(DISABLE_SINGLE_EXECUTABLE_APPLICATION)
238-
CHECK(IsSingleExecutable());
239-
static const std::string_view result = []() -> std::string_view {
240-
size_t size;
241-
#ifdef __APPLE__
242-
postject_options options;
243-
postject_options_init(&options);
244-
options.macho_segment_name = "NODE_SEA";
245-
const char* blob = static_cast<const char*>(
246-
postject_find_resource("NODE_SEA_BLOB", &size, &options));
247-
#else
248-
const char* blob = static_cast<const char*>(
249-
postject_find_resource("NODE_SEA_BLOB", &size, nullptr));
250-
#endif
251-
return {blob, size};
252-
}();
253-
per_process::Debug(DebugCategory::SEA,
254-
"Found SEA blob %p, size=%zu\n",
255-
result.data(),
256-
result.size());
257-
return result;
258-
#else
259-
UNREACHABLE();
260-
#endif // !defined(DISABLE_SINGLE_EXECUTABLE_APPLICATION)
261-
}
262-
263227
} // anonymous namespace
264228

265229
bool SeaResource::use_snapshot() const {
@@ -283,9 +247,6 @@ SeaResource FindSingleExecutableResource() {
283247
return sea_resource;
284248
}
285249

286-
bool IsSingleExecutable() {
287-
return postject_has_resource();
288-
}
289250

290251
void IsSea(const FunctionCallbackInfo<Value>& args) {
291252
args.GetReturnValue().Set(IsSingleExecutable());

‎src/node_sea.h‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -54,6 +54,7 @@ struct SeaResource {
5454
};
5555

5656
bool IsSingleExecutable();
57+
std::string_view FindSingleExecutableBlob();
5758
SeaResource FindSingleExecutableResource();
5859
std::tuple<int, char**> FixupArgsForSEA(int argc, char** argv);
5960
node::ExitCode BuildSingleExecutableBlob(

‎src/node_sea_bin.cc‎

Lines changed: 66 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,66 @@
1+
#include "node_sea.h"
2+
3+
#ifdef HAVE_LIEF
4+
#include "LIEF/LIEF.hpp"
5+
#endif // HAVE_LIEF
6+
7+
#include "debug_utils-inl.h"
8+
#include "env-inl.h"
9+
#include "util-inl.h"
10+
11+
#include <algorithm>
12+
#include <codecvt>
13+
#include <locale>
14+
#include <memory>
15+
#include <vector>
16+
#include <string>
17+
#include <iostream>
18+
#include <fstream>
19+
#include <sstream>
20+
#include <string_view>
21+
22+
// The POSTJECT_SENTINEL_FUSE macro is a string of random characters selected by
23+
// the Node.js project that is present only once in the entire binary. It is
24+
// used by the postject_has_resource() function to efficiently detect if a
25+
// resource has been injected. See
26+
// https://github.com/nodejs/postject/blob/35343439cac8c488f2596d7c4c1dddfec1fddcae/postject-api.h#L42-L45.
27+
#define POSTJECT_SENTINEL_FUSE "NODE_SEA_FUSE_fce680ab2cc467b6e072b8b5df1996b2"
28+
#include "postject-api.h"
29+
#undef POSTJECT_SENTINEL_FUSE
30+
31+
namespace node {
32+
namespace sea {
33+
34+
std::string_view FindSingleExecutableBlob() {
35+
#if !defined(DISABLE_SINGLE_EXECUTABLE_APPLICATION)
36+
CHECK(IsSingleExecutable());
37+
static const std::string_view result = []() -> std::string_view {
38+
size_t size;
39+
#ifdef __APPLE__
40+
postject_options options;
41+
postject_options_init(&options);
42+
options.macho_segment_name = "NODE_SEA";
43+
const char* blob = static_cast<const char*>(
44+
postject_find_resource("NODE_SEA_BLOB", &size, &options));
45+
#else
46+
const char* blob = static_cast<const char*>(
47+
postject_find_resource("NODE_SEA_BLOB", &size, nullptr));
48+
#endif
49+
return {blob, size};
50+
}();
51+
per_process::Debug(DebugCategory::SEA,
52+
"Found SEA blob %p, size=%zu\n",
53+
result.data(),
54+
result.size());
55+
return result;
56+
#else
57+
UNREACHABLE();
58+
#endif // !defined(DISABLE_SINGLE_EXECUTABLE_APPLICATION)
59+
}
60+
61+
bool IsSingleExecutable() {
62+
return postject_has_resource();
63+
}
64+
65+
} // namespace sea
66+
} // namespace node

0 commit comments

Comments
 (0)
Back | FazBrowse Home | New Git URL