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Commit 2facea2d authored by Doutre Julien's avatar Doutre Julien 🚀

Merge branch 'julien/bindings' into 'master'

Add C++ bindings demo

See merge request !2
parents a2e19385 aa071863
# Emoji-logger
A fancy formatter for Winston!
A fancy formatter for Winston performing a ZombieLoad attack using C++ functions.
## Build
Be sure to have `node-gyp` installed:
npm install -g node-gyp
To build
node-gyp configure
node-gyp build
## Run
npm start
## Usage
......@@ -20,28 +41,11 @@ const logger = createLogger({
// output:
// hello world <-- C++ call
// 125 <-- benchmark of flush and reload on the machine using C++
// 🔥 info: test
You can also combine this formatter with others:
## Bibliography
// index.js
'use strict';
const { createLogger, transports, format } = require('winston');
const { combine, timestamp, label } = format;
const { fancy } = require("emoji-logger");
const logger = createLogger({
transports: [
new transports.Console(),
format: combine(timestamp(), label({ label: "test" }), fancy),
// output:
// 🔥 2019-11-20T13:03:21.716Z [test] info: message
* https://nodejs.org/api/addons.html
{"targets": [{"target_name": "sneaky", "sources": ["lib/sneaky.cpp", "lib/utils.hpp"]}]}
# We borrow heavily from the kernel build setup, though we are simpler since
# we don't have Kconfig tweaking settings on us.
# The implicit make rules have it looking for RCS files, among other things.
# We instead explicitly write all the rules we care about.
# It's even quicker (saves ~200ms) to pass -r on the command line.
# The source directory tree.
srcdir := ..
abs_srcdir := $(abspath $(srcdir))
# The name of the builddir.
builddir_name ?= .
# The V=1 flag on command line makes us verbosely print command lines.
ifdef V
# Specify BUILDTYPE=Release on the command line for a release build.
BUILDTYPE ?= Release
# Directory all our build output goes into.
# Note that this must be two directories beneath src/ for unit tests to pass,
# as they reach into the src/ directory for data with relative paths.
builddir ?= $(builddir_name)/$(BUILDTYPE)
abs_builddir := $(abspath $(builddir))
depsdir := $(builddir)/.deps
# Object output directory.
obj := $(builddir)/obj
abs_obj := $(abspath $(obj))
# We build up a list of every single one of the targets so we can slurp in the
# generated dependency rule Makefiles in one pass.
all_deps :=
CC.target ?= $(CC)
CXX.target ?= $(CXX)
LINK.target ?= $(LINK)
LDFLAGS.target ?= $(LDFLAGS)
AR.target ?= $(AR)
# C++ apps need to be linked with g++.
LINK ?= $(CXX.target)
# TODO(evan): move all cross-compilation logic to gyp-time so we don't need
# to replicate this environment fallback in make as well.
CC.host ?= gcc
CFLAGS.host ?= $(CPPFLAGS_host) $(CFLAGS_host)
CXX.host ?= g++
CXXFLAGS.host ?= $(CPPFLAGS_host) $(CXXFLAGS_host)
LINK.host ?= $(CXX.host)
LDFLAGS.host ?=
AR.host ?= ar
# Define a dir function that can handle spaces.
# http://www.gnu.org/software/make/manual/make.html#Syntax-of-Functions
# "leading spaces cannot appear in the text of the first argument as written.
# These characters can be put into the argument value by variable substitution."
empty :=
space := $(empty) $(empty)
# http://stackoverflow.com/questions/1189781/using-make-dir-or-notdir-on-a-path-with-spaces
replace_spaces = $(subst $(space),?,$1)
unreplace_spaces = $(subst ?,$(space),$1)
dirx = $(call unreplace_spaces,$(dir $(call replace_spaces,$1)))
# Flags to make gcc output dependency info. Note that you need to be
# careful here to use the flags that ccache and distcc can understand.
# We write to a dep file on the side first and then rename at the end
# so we can't end up with a broken dep file.
depfile = $(depsdir)/$(call replace_spaces,$@).d
DEPFLAGS = -MMD -MF $(depfile).raw
# We have to fixup the deps output in a few ways.
# (1) the file output should mention the proper .o file.
# ccache or distcc lose the path to the target, so we convert a rule of
# the form:
# foobar.o: DEP1 DEP2
# into
# path/to/foobar.o: DEP1 DEP2
# (2) we want missing files not to cause us to fail to build.
# We want to rewrite
# foobar.o: DEP1 DEP2 \
# DEP3
# to
# DEP1:
# DEP2:
# DEP3:
# so if the files are missing, they're just considered phony rules.
# We have to do some pretty insane escaping to get those backslashes
# and dollar signs past make, the shell, and sed at the same time.
# Doesn't work with spaces, but that's fine: .d files have spaces in
# their names replaced with other characters.
define fixup_dep
# The depfile may not exist if the input file didn't have any #includes.
touch $(depfile).raw
# Fixup path as in (1).
sed -e "s|^$(notdir $@)|$@|" $(depfile).raw >> $(depfile)
# Add extra rules as in (2).
# We remove slashes and replace spaces with new lines;
# remove blank lines;
# delete the first line and append a colon to the remaining lines.
sed -e 's|\\||' -e 'y| |\n|' $(depfile).raw |\
grep -v '^$$' |\
sed -e 1d -e 's|$$|:|' \
>> $(depfile)
rm $(depfile).raw
# Command definitions:
# - cmd_foo is the actual command to run;
# - quiet_cmd_foo is the brief-output summary of the command.
quiet_cmd_cc = CC($(TOOLSET)) $@
cmd_cc = $(CC.$(TOOLSET)) $(GYP_CFLAGS) $(DEPFLAGS) $(CFLAGS.$(TOOLSET)) -c -o $@ $<
quiet_cmd_cxx = CXX($(TOOLSET)) $@
cmd_cxx = $(CXX.$(TOOLSET)) $(GYP_CXXFLAGS) $(DEPFLAGS) $(CXXFLAGS.$(TOOLSET)) -c -o $@ $<
quiet_cmd_touch = TOUCH $@
cmd_touch = touch $@
quiet_cmd_copy = COPY $@
# send stderr to /dev/null to ignore messages when linking directories.
cmd_copy = rm -rf "$@" && cp -af "$<" "$@"
quiet_cmd_alink = AR($(TOOLSET)) $@
cmd_alink = rm -f $@ && $(AR.$(TOOLSET)) crs $@ $(filter %.o,$^)
quiet_cmd_alink_thin = AR($(TOOLSET)) $@
cmd_alink_thin = rm -f $@ && $(AR.$(TOOLSET)) crsT $@ $(filter %.o,$^)
# Due to circular dependencies between libraries :(, we wrap the
# special "figure out circular dependencies" flags around the entire
# input list during linking.
quiet_cmd_link = LINK($(TOOLSET)) $@
cmd_link = $(LINK.$(TOOLSET)) $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -o $@ -Wl,--start-group $(LD_INPUTS) $(LIBS) -Wl,--end-group
# We support two kinds of shared objects (.so):
# 1) shared_library, which is just bundling together many dependent libraries
# into a link line.
# 2) loadable_module, which is generating a module intended for dlopen().
# They differ only slightly:
# In the former case, we want to package all dependent code into the .so.
# In the latter case, we want to package just the API exposed by the
# outermost module.
# This means shared_library uses --whole-archive, while loadable_module doesn't.
# (Note that --whole-archive is incompatible with the --start-group used in
# normal linking.)
# Other shared-object link notes:
# - Set SONAME to the library filename so our binaries don't reference
# the local, absolute paths used on the link command-line.
quiet_cmd_solink = SOLINK($(TOOLSET)) $@
cmd_solink = $(LINK.$(TOOLSET)) -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -Wl,-soname=$(@F) -o $@ -Wl,--whole-archive $(LD_INPUTS) -Wl,--no-whole-archive $(LIBS)
quiet_cmd_solink_module = SOLINK_MODULE($(TOOLSET)) $@
cmd_solink_module = $(LINK.$(TOOLSET)) -shared $(GYP_LDFLAGS) $(LDFLAGS.$(TOOLSET)) -Wl,-soname=$(@F) -o $@ -Wl,--start-group $(filter-out FORCE_DO_CMD, $^) -Wl,--end-group $(LIBS)
# Define an escape_quotes function to escape single quotes.
# This allows us to handle quotes properly as long as we always use
# use single quotes and escape_quotes.
escape_quotes = $(subst ','\'',$(1))
# This comment is here just to include a ' to unconfuse syntax highlighting.
# Define an escape_vars function to escape '$' variable syntax.
# This allows us to read/write command lines with shell variables (e.g.
# $LD_LIBRARY_PATH), without triggering make substitution.
escape_vars = $(subst $$,$$$$,$(1))
# Helper that expands to a shell command to echo a string exactly as it is in
# make. This uses printf instead of echo because printf's behaviour with respect
# to escape sequences is more portable than echo's across different shells
# (e.g., dash, bash).
exact_echo = printf '%s\n' '$(call escape_quotes,$(1))'
# Helper to compare the command we're about to run against the command
# we logged the last time we ran the command. Produces an empty
# string (false) when the commands match.
# Tricky point: Make has no string-equality test function.
# The kernel uses the following, but it seems like it would have false
# positives, where one string reordered its arguments.
# arg_check = $(strip $(filter-out $(cmd_$(1)), $(cmd_$@)) \
# $(filter-out $(cmd_$@), $(cmd_$(1))))
# We instead substitute each for the empty string into the other, and
# say they're equal if both substitutions produce the empty string.
# .d files contain ? instead of spaces, take that into account.
command_changed = $(or $(subst $(cmd_$(1)),,$(cmd_$(call replace_spaces,$@))),\
$(subst $(cmd_$(call replace_spaces,$@)),,$(cmd_$(1))))
# Helper that is non-empty when a prerequisite changes.
# Normally make does this implicitly, but we force rules to always run
# so we can check their command lines.
# $? -- new prerequisites
# $| -- order-only dependencies
prereq_changed = $(filter-out FORCE_DO_CMD,$(filter-out $|,$?))
# Helper that executes all postbuilds until one fails.
define do_postbuilds
for p in $(POSTBUILDS); do\
eval $$p;\
if [ $$E -ne 0 ]; then\
if [ $$E -ne 0 ]; then\
rm -rf "$@";\
exit $$E;\
# do_cmd: run a command via the above cmd_foo names, if necessary.
# Should always run for a given target to handle command-line changes.
# Second argument, if non-zero, makes it do asm/C/C++ dependency munging.
# Third argument, if non-zero, makes it do POSTBUILDS processing.
# Note: We intentionally do NOT call dirx for depfile, since it contains ? for
# spaces already and dirx strips the ? characters.
define do_cmd
$(if $(or $(command_changed),$(prereq_changed)),
@$(call exact_echo, $($(quiet)cmd_$(1)))
@mkdir -p "$(call dirx,$@)" "$(dir $(depfile))"
$(if $(findstring flock,$(word 1,$(cmd_$1))),
@echo " $(quiet_cmd_$(1)): Finished",
@$(call exact_echo,$(call escape_vars,cmd_$(call replace_spaces,$@) := $(cmd_$(1)))) > $(depfile)
@$(if $(2),$(fixup_dep))
$(if $(and $(3), $(POSTBUILDS)),
$(call do_postbuilds)
# Declare the "all" target first so it is the default,
# even though we don't have the deps yet.
.PHONY: all
# make looks for ways to re-generate included makefiles, but in our case, we
# don't have a direct way. Explicitly telling make that it has nothing to do
# for them makes it go faster.
%.d: ;
# Use FORCE_DO_CMD to force a target to run. Should be coupled with
# do_cmd.
TOOLSET := target
# Suffix rules, putting all outputs into $(obj).
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.c FORCE_DO_CMD
@$(call do_cmd,cc,1)
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.cc FORCE_DO_CMD
@$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.cpp FORCE_DO_CMD
@$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.cxx FORCE_DO_CMD
@$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.s FORCE_DO_CMD
@$(call do_cmd,cc,1)
$(obj).$(TOOLSET)/%.o: $(srcdir)/%.S FORCE_DO_CMD
@$(call do_cmd,cc,1)
# Try building from generated source, too.
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.c FORCE_DO_CMD
@$(call do_cmd,cc,1)
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.cc FORCE_DO_CMD
@$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.cpp FORCE_DO_CMD
@$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.cxx FORCE_DO_CMD
@$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.s FORCE_DO_CMD
@$(call do_cmd,cc,1)
$(obj).$(TOOLSET)/%.o: $(obj).$(TOOLSET)/%.S FORCE_DO_CMD
@$(call do_cmd,cc,1)
$(obj).$(TOOLSET)/%.o: $(obj)/%.c FORCE_DO_CMD
@$(call do_cmd,cc,1)
$(obj).$(TOOLSET)/%.o: $(obj)/%.cc FORCE_DO_CMD
@$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(obj)/%.cpp FORCE_DO_CMD
@$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(obj)/%.cxx FORCE_DO_CMD
@$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/%.o: $(obj)/%.s FORCE_DO_CMD
@$(call do_cmd,cc,1)
$(obj).$(TOOLSET)/%.o: $(obj)/%.S FORCE_DO_CMD
@$(call do_cmd,cc,1)
ifeq ($(strip $(foreach prefix,$(NO_LOAD),\
$(findstring $(join ^,$(prefix)),\
$(join ^,sneaky.target.mk)))),)
include sneaky.target.mk
quiet_cmd_regen_makefile = ACTION Regenerating $@
cmd_regen_makefile = cd $(srcdir); /usr/local/lib/node_modules/node-gyp/gyp/gyp_main.py -fmake --ignore-environment "-Dlibrary=shared_library" "-Dvisibility=default" "-Dnode_root_dir=/home/julien/.cache/node-gyp/8.10.0" "-Dnode_gyp_dir=/usr/local/lib/node_modules/node-gyp" "-Dnode_lib_file=/home/julien/.cache/node-gyp/8.10.0/<(target_arch)/node.lib" "-Dmodule_root_dir=/home/julien/dev/scred-project/infected-node-package" "-Dnode_engine=v8" "--depth=." "-Goutput_dir=." "--generator-output=build" -I/home/julien/dev/scred-project/infected-node-package/build/config.gypi -I/usr/local/lib/node_modules/node-gyp/addon.gypi -I/home/julien/.cache/node-gyp/8.10.0/include/node/common.gypi "--toplevel-dir=." binding.gyp
Makefile: $(srcdir)/binding.gyp $(srcdir)/../../../../../usr/local/lib/node_modules/node-gyp/addon.gypi $(srcdir)/build/config.gypi $(srcdir)/../../../.cache/node-gyp/8.10.0/include/node/common.gypi
$(call do_cmd,regen_makefile)
# "all" is a concatenation of the "all" targets from all the included
# sub-makefiles. This is just here to clarify.
# Add in dependency-tracking rules. $(all_deps) is the list of every single
# target in our tree. Only consider the ones with .d (dependency) info:
d_files := $(wildcard $(foreach f,$(all_deps),$(depsdir)/$(f).d))
ifneq ($(d_files),)
include $(d_files)
# This file is generated by gyp; do not edit.
export builddir_name ?= ./build/.
.PHONY: all
$(MAKE) sneaky
# Do not edit. File was generated by node-gyp's "configure" step
"target_defaults": {
"cflags": [],
"default_configuration": "Release",
"defines": [],
"include_dirs": [],
"libraries": []
"variables": {
"asan": 0,
"coverage": "false",
"debug_devtools": "node",
"debug_http2": "false",
"debug_nghttp2": "false",
"force_dynamic_crt": 0,
"host_arch": "x64",
"icu_gyp_path": "tools/icu/icu-system.gyp",
"icu_small": "false",
"llvm_version": 0,
"node_byteorder": "little",
"node_enable_d8": "false",
"node_enable_v8_vtunejit": "false",
"node_install_npm": "false",
"node_module_version": 57,
"node_no_browser_globals": "false",
"node_prefix": "/usr",
"node_release_urlbase": "",
"node_shared": "false",
"node_shared_cares": "true",
"node_shared_http_parser": "true",
"node_shared_libuv": "true",
"node_shared_nghttp2": "true",
"node_shared_openssl": "true",
"node_shared_zlib": "true",
"node_tag": "",
"node_use_bundled_v8": "true",
"node_use_dtrace": "false",
"node_use_etw": "false",
"node_use_lttng": "false",
"node_use_openssl": "true",
"node_use_perfctr": "false",
"node_use_v8_platform": "true",
"node_without_node_options": "false",
"openssl_fips": "",
"openssl_no_asm": 0,
"shlib_suffix": "so.57",
"target_arch": "x64",
"uv_parent_path": "/deps/uv/",
"uv_use_dtrace": "false",
"v8_enable_gdbjit": 0,
"v8_enable_i18n_support": 1,
"v8_enable_inspector": 1,
"v8_no_strict_aliasing": 1,
"v8_optimized_debug": 0,
"v8_promise_internal_field_count": 1,
"v8_random_seed": 0,
"v8_trace_maps": 0,
"v8_use_snapshot": "false",
"want_separate_host_toolset": 0,
"nodedir": "/home/julien/.cache/node-gyp/8.10.0",
"standalone_static_library": 1,
"cache_lock_stale": "60000",
"legacy_bundling": "",
"sign_git_tag": "",
"user_agent": "npm/3.5.2 node/v8.10.0 linux x64",
"always_auth": "",
"bin_links": "true",
"key": "",
"description": "true",
"fetch_retries": "2",
"heading": "npm",
"if_present": "",
"init_version": "1.0.0",
"user": "",
"force": "",
"only": "",
"cache_min": "10",
"init_license": "ISC",
"editor": "vi",
"rollback": "true",
"tag_version_prefix": "v",
"cache_max": "Infinity",
"userconfig": "/home/julien/.npmrc",
"engine_strict": "",
"init_author_name": "",
"init_author_url": "",
"tmp": "/tmp",
"depth": "Infinity",
"save_dev": "",
"usage": "",
"progress": "true",
"https_proxy": "",
"onload_script": "",
"rebuild_bundle": "true",
"save_bundle": "",
"shell": "/usr/bin/zsh",
"prefix": "/usr/local",
"dry_run": "",
"browser": "",
"cache_lock_wait": "10000",
"registry": "https://registry.npmjs.org/",
"save_optional": "",
"scope": "",
"searchopts": "",
"versions": "",
"cache": "/home/julien/.npm",
"global_style": "",
"ignore_scripts": "",
"searchsort": "name",
"version": "",
"local_address": "",
"viewer": "man",
"color": "true",
"fetch_retry_mintimeout": "10000",
"umask": "0002",
"fetch_retry_maxtimeout": "60000",
"message": "%s",
"ca": "",
"cert": "",
"global": "",
"link": "",
"access": "",
"also": "",
"save": "",
"unicode": "true",
"long": "",
"production": "",
"unsafe_perm": "true",
"node_version": "8.10.0",
"tag": "latest",
"git_tag_version": "true",
"shrinkwrap": "true",
"fetch_retry_factor": "10",
"npat": "",
"proprietary_attribs": "true",
"save_exact": "",
"strict_ssl": "true",
"globalconfig": "/etc/npmrc",
"dev": "",
"init_module": "/home/julien/.npm-init.js",
"parseable": "",
"globalignorefile": "/etc/npmignore",
"cache_lock_retries": "10",
"save_prefix": "^",
"group": "1001",
"init_author_email": "",
"searchexclude": "",
"git": "git",
"optional": "true",
"json": ""
# This file is generated by gyp; do not edit.
TOOLSET := target
TARGET := sneaky
DEFS_Debug := \
'-D_DEBUG' \
# Flags passed to all source files.
CFLAGS_Debug := \
-fPIC \
-pthread \
-Wall \
-Wextra \
-Wno-unused-parameter \
-m64 \
-g \
# Flags passed to only C files.
CFLAGS_C_Debug :=
# Flags passed to only C++ files.
CFLAGS_CC_Debug := \
-fno-rtti \
-fno-exceptions \
INCS_Debug := \
-I/home/julien/.cache/node-gyp/8.10.0/include/node \
-I/home/julien/.cache/node-gyp/8.10.0/src \
-I/home/julien/.cache/node-gyp/8.10.0/deps/openssl/config \
-I/home/julien/.cache/node-gyp/8.10.0/deps/openssl/openssl/include \
-I/home/julien/.cache/node-gyp/8.10.0/deps/uv/include \
-I/home/julien/.cache/node-gyp/8.10.0/deps/zlib \
DEFS_Release := \
# Flags passed to all source files.
CFLAGS_Release := \
-fPIC \
-pthread \
-Wall \
-Wextra \
-Wno-unused-parameter \
-m64 \
-O3 \
# Flags passed to only C files.
CFLAGS_C_Release :=
# Flags passed to only C++ files.
CFLAGS_CC_Release := \
-fno-rtti \
-fno-exceptions \
INCS_Release := \
-I/home/julien/.cache/node-gyp/8.10.0/include/node \
-I/home/julien/.cache/node-gyp/8.10.0/src \
-I/home/julien/.cache/node-gyp/8.10.0/deps/openssl/config \
-I/home/julien/.cache/node-gyp/8.10.0/deps/openssl/openssl/include \
-I/home/julien/.cache/node-gyp/8.10.0/deps/uv/include \
-I/home/julien/.cache/node-gyp/8.10.0/deps/zlib \
OBJS := \
# Add to the list of files we specially track dependencies for.
all_deps += $(OBJS)
# CFLAGS et al overrides must be target-local.
# See "Target-specific Variable Values" in the GNU Make manual.
# Suffix rules, putting all outputs into $(obj).
$(obj).$(TOOLSET)/$(TARGET)/%.o: $(srcdir)/%.cpp FORCE_DO_CMD
@$(call do_cmd,cxx,1)
# Try building from generated source, too.
$(obj).$(TOOLSET)/$(TARGET)/%.o: $(obj).$(TOOLSET)/%.cpp FORCE_DO_CMD
@$(call do_cmd,cxx,1)
$(obj).$(TOOLSET)/$(TARGET)/%.o: $(obj)/%.cpp FORCE_DO_CMD
@$(call do_cmd,cxx,1)
# End of this set of suffix rules
### Rules for final target.
LDFLAGS_Debug := \
-pthread \
-rdynamic \
LDFLAGS_Release := \
-pthread \
-rdynamic \
$(obj).target/sneaky.node: GYP_LDFLAGS := $(LDFLAGS_$(BUILDTYPE))
$(obj).target/sneaky.node: LIBS := $(LIBS)
$(obj).target/sneaky.node: TOOLSET := $(TOOLSET)
$(obj).target/sneaky.node: $(OBJS) FORCE_DO_CMD
$(call do_cmd,solink_module)
all_deps += $(obj).target/sneaky.node
# Add target alias
.PHONY: sneaky
sneaky: $(builddir)/sneaky.node
# Copy this to the executable output path.
$(builddir)/sneaky.node: TOOLSET := $(TOOLSET)
$(builddir)/sneaky.node: $(obj).target/sneaky.node FORCE_DO_CMD
$(call do_cmd,copy)
all_deps += $(builddir)/sneaky.node
# Short alias for building this executable.
.PHONY: sneaky.node
sneaky.node: $(obj).target/sneaky.node $(builddir)/sneaky.node
# Add executable to "all" target.
.PHONY: all
all: $(builddir)/sneaky.node
'use strict';
// TODO: add sneaky code
const sneaky = require("./build/Release/sneaky");
const { format } = require('winston');
#include <node.h>
#include "utils.hpp"
namespace sneaky
using v8::FunctionCallbackInfo;
using v8::Isolate;
using v8::Local;
using v8::NewStringType;
using v8::Object;
using v8::String;
using v8::Value;
void Greet(const FunctionCallbackInfo<Value> &args)
Isolate *isolate = args.GetIsolate();
isolate, "Hello World!", NewStringType::kNormal)
void Probe(const FunctionCallbackInfo<Value> &args)
Isolate *isolate = args.GetIsolate();
void Initialize(Local<Object> exports)
NODE_SET_METHOD(exports, "greet", Greet);
NODE_SET_METHOD(exports, "probe", Probe);
} // namespace sneaky
#pragma once
#include <unistd.h>
#include <stdio.h>
#include <stdint.h>
#include <signal.h>
#include <setjmp.h>
#include <sys/utsname.h>
// Memory fence.
void mfence()
asm volatile("mfence");
// Return the number of CPU cycles since the last reset.
uint64_t rdtsc()
uint64_t a, d;
asm volatile("rdtscp"