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deps: copy postject-api.h and LICENSE to the deps folder

Browse Source 
Since `postject-api.h` gets compiled into Node.js, it makes more sense
to put it in the `deps` directory instead of `test/fixtures`.

Refs: https://github.com/nodejs/node/pull/45038#discussion_r1100752158
Signed-off-by: Darshan Sen <raisinten@gmail.com>
PR-URL: https://github.com/nodejs/node/pull/46582
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Michael Dawson <midawson@redhat.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
This commit is contained in:
Darshan Sen
2023-02-09 11:50:59 +05:30
parent be49214746
commit a37c083dc1
5 changed files with 447 additions and 3 deletions
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2
.github/workflows/tools.yml vendored
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@@ -78,7 +78,7 @@ jobs:
./tools/update-undici.sh
fi
- id: postject
subsystem: test
subsystem: deps,test
label: test
run: |
NEW_VERSION=$(npm view postject dist-tags.latest)

236
deps/postject/LICENSE vendored Normal file
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@@ -0,0 +1,236 @@
Postject is licensed for use as follows:
"""
MIT License
Copyright (c) 2022 Postman, Inc
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
"""
The Postject license applies to all parts of Postject that are not externally
maintained libraries.
The externally maintained libraries used by Postject are:
- LIEF, located at vendor/LIEF, is licensed as follows:
"""
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Licensed under the Apache License, Version 2.0 (the "License");
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197
deps/postject/postject-api.h vendored Normal file
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@@ -0,0 +1,197 @@
#ifndef POSTJECT_API_H_
#define POSTJECT_API_H_
#include <stdbool.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#if defined(__APPLE__) && defined(__MACH__)
#include <mach-o/dyld.h>
#include <mach-o/getsect.h>
#elif defined(__linux__)
#include <elf.h>
#include <link.h>
#include <sys/auxv.h>
#include <sys/param.h>
#elif defined(_WIN32)
#include <windows.h>
#endif
#ifndef POSTJECT_SENTINEL_FUSE
#define POSTJECT_SENTINEL_FUSE \
"POSTJECT_SENTINEL_fce680ab2cc467b6e072b8b5df1996b2"
#endif
struct postject_options {
const char* elf_section_name;
const char* macho_framework_name;
const char* macho_section_name;
const char* macho_segment_name;
const char* pe_resource_name;
};
inline void postject_options_init(struct postject_options* options) {
options->elf_section_name = NULL;
options->macho_framework_name = NULL;
options->macho_section_name = NULL;
options->macho_segment_name = NULL;
options->pe_resource_name = NULL;
}
static inline bool postject_has_resource() {
static const volatile char* sentinel = POSTJECT_SENTINEL_FUSE ":0";
return sentinel[sizeof(POSTJECT_SENTINEL_FUSE)] == '1';
}
static const void* postject_find_resource(
const char* name,
size_t* size,
const struct postject_options* options) {
// Always zero out the size pointer to start
if (size != NULL) {
*size = 0;
}
#if defined(__APPLE__) && defined(__MACH__)
char* section_name = NULL;
const char* segment_name = "__POSTJECT";
if (options != NULL && options->macho_segment_name != NULL) {
segment_name = options->macho_segment_name;
}
if (options != NULL && options->macho_section_name != NULL) {
name = options->macho_section_name;
} else if (strncmp(name, "__", 2) != 0) {
// Automatically prepend __ to match naming convention
section_name = (char*)malloc(strlen(name) + 3);
if (section_name == NULL) {
return NULL;
}
strcpy(section_name, "__");
strcat(section_name, name);
}
unsigned long section_size;
char* ptr = NULL;
if (options != NULL && options->macho_framework_name != NULL) {
#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
#endif
ptr = getsectdatafromFramework(options->macho_framework_name, segment_name,
section_name != NULL ? section_name : name,
&section_size);
} else {
ptr = getsectdata(segment_name, section_name != NULL ? section_name : name,
&section_size);
#ifdef __clang__
#pragma clang diagnostic pop
#endif
if (ptr != NULL) {
// Add the "virtual memory address slide" amount to ensure a valid pointer
// in cases where the virtual memory address have been adjusted by the OS.
//
// NOTE - `getsectdataFromFramework` already handles this adjustment for
// us, which is why we only do it for `getsectdata`, see:
// https://web.archive.org/web/20220613234007/https://opensource.apple.com/source/cctools/cctools-590/libmacho/getsecbyname.c.auto.html
ptr += _dyld_get_image_vmaddr_slide(0);
}
}
free(section_name);
if (size != NULL) {
*size = (size_t)section_size;
}
return ptr;
#elif defined(__linux__)
if (options != NULL && options->elf_section_name != NULL) {
name = options->elf_section_name;
}
uintptr_t p = getauxval(AT_PHDR);
size_t n = getauxval(AT_PHNUM);
uintptr_t base_addr = p - sizeof(ElfW(Ehdr));
// iterate program header
for (; n > 0; n--, p += sizeof(ElfW(Phdr))) {
ElfW(Phdr)* phdr = (ElfW(Phdr)*)p;
// skip everything but notes
if (phdr->p_type != PT_NOTE) {
continue;
}
// note segment starts at base address + segment virtual address
uintptr_t pos = (base_addr + phdr->p_vaddr);
uintptr_t end = (pos + phdr->p_memsz);
// iterate through segment until we reach the end
while (pos < end) {
if (pos + sizeof(ElfW(Nhdr)) > end) {
break; // invalid
}
ElfW(Nhdr)* note = (ElfW(Nhdr)*)(uintptr_t)pos;
if (note->n_namesz != 0 && note->n_descsz != 0 &&
strncmp((char*)(pos + sizeof(ElfW(Nhdr))), (char*)name,
sizeof(name)) == 0) {
*size = note->n_descsz;
// advance past note header and aligned name
// to get to description data
return (void*)((uintptr_t)note + sizeof(ElfW(Nhdr)) +
roundup(note->n_namesz, 4));
}
pos += (sizeof(ElfW(Nhdr)) + roundup(note->n_namesz, 4) +
roundup(note->n_descsz, 4));
}
}
return NULL;
#elif defined(_WIN32)
void* ptr = NULL;
char* resource_name = NULL;
if (options != NULL && options->pe_resource_name != NULL) {
name = options->pe_resource_name;
} else {
// Automatically uppercase the resource name or it won't be found
resource_name = (char*)malloc(strlen(name) + 1);
if (resource_name == NULL) {
return NULL;
}
strcpy_s(resource_name, strlen(name) + 1, name);
CharUpperA(resource_name); // Uppercases inplace
}
HRSRC resource_handle =
FindResourceA(NULL, resource_name != NULL ? resource_name : name,
MAKEINTRESOURCEA(10) /* RT_RCDATA */);
if (resource_handle) {
HGLOBAL global_resource_handle = LoadResource(NULL, resource_handle);
if (global_resource_handle) {
if (size != NULL) {
*size = SizeofResource(NULL, resource_handle);
}
ptr = LockResource(global_resource_handle);
}
}
free(resource_name);
return ptr;
#else
return NULL;
#endif
}
#endif // POSTJECT_API_H_

8
doc/contributing/maintaining-postject.md
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@@ -12,12 +12,16 @@ Check that Node.js still builds and tests.
## Committing postject
1. Add postject: `git add --all test/fixtures/postject-copy`.
1. Add postject:
```console
$ git add test/fixtures/postject-copy
$ git add deps/postject
```
2. Commit the changes: `git commit`.
3. Add a message like:
```text
test: update postject to <version>
deps,test: update postject to <version>
Updated as described in doc/contributing/maintaining-postject.md.
```

7
tools/dep_updaters/update-postject.sh
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@@ -20,3 +20,10 @@ NPM="$ROOT/deps/npm/bin/npm-cli.js"
"$NODE" "$NPM" init --yes
"$NODE" "$NPM" install --no-bin-links --ignore-scripts postject
# TODO(RaisinTen): Replace following with $WORKSPACE
cd ../../..
rm -rf deps/postject
mkdir deps/postject
cp test/fixtures/postject-copy/node_modules/postject/LICENSE deps/postject
cp test/fixtures/postject-copy/node_modules/postject/dist/postject-api.h deps/postject