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build.rs
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build.rs
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// Inspired from https://github.com/jgallagher/rusqlite/blob/master/libsqlite3-sys/build.rs
fn main() {
build::build_and_link();
bindings::add_bindings();
}
#[cfg(feature = "vendored")]
mod build {
use std::path::PathBuf;
pub fn build_and_link() {
let basedir = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("yara");
let mut cc = cc::Build::new();
cc.include(basedir.join("libyara"))
.include(basedir.join("libyara/include"))
.file(basedir.join("libyara/ahocorasick.c"))
.file(basedir.join("libyara/arena.c"))
.file(basedir.join("libyara/atoms.c"))
.file(basedir.join("libyara/base64.c"))
.file(basedir.join("libyara/bitmask.c"))
.file(basedir.join("libyara/compiler.c"))
.file(basedir.join("libyara/endian.c"))
.file(basedir.join("libyara/exec.c"))
.file(basedir.join("libyara/exefiles.c"))
.file(basedir.join("libyara/filemap.c"))
.file(basedir.join("libyara/grammar.c"))
.file(basedir.join("libyara/hash.c"))
.file(basedir.join("libyara/hex_grammar.c"))
.file(basedir.join("libyara/hex_lexer.c"))
.file(basedir.join("libyara/lexer.c"))
.file(basedir.join("libyara/libyara.c"))
.file(basedir.join("libyara/mem.c"))
.file(basedir.join("libyara/notebook.c"))
.file(basedir.join("libyara/object.c"))
.file(basedir.join("libyara/parser.c"))
.file(basedir.join("libyara/proc.c"))
.file(basedir.join("libyara/re.c"))
.file(basedir.join("libyara/re_grammar.c"))
.file(basedir.join("libyara/re_lexer.c"))
.file(basedir.join("libyara/rules.c"))
.file(basedir.join("libyara/scan.c"))
.file(basedir.join("libyara/scanner.c"))
.file(basedir.join("libyara/sizedstr.c"))
.file(basedir.join("libyara/stack.c"))
.file(basedir.join("libyara/stopwatch.c"))
.file(basedir.join("libyara/stream.c"))
.file(basedir.join("libyara/strutils.c"))
.file(basedir.join("libyara/threading.c"))
.file(basedir.join("libyara/modules.c"))
.file(basedir.join("libyara/modules/elf/elf.c"))
.file(basedir.join("libyara/modules/math/math.c"))
.file(basedir.join("libyara/modules/pe/pe.c"))
.file(basedir.join("libyara/modules/pe/pe_utils.c"))
.file(basedir.join("libyara/modules/tests/tests.c"))
.file(basedir.join("libyara/modules/time/time.c"))
.define("DEX_MODULE", "")
.file(basedir.join("libyara/modules/dex/dex.c"))
.define("DOTNET_MODULE", "")
.file(basedir.join("libyara/modules/dotnet/dotnet.c"))
.define("MACHO_MODULE", "")
.file(basedir.join("libyara/modules/macho/macho.c"))
.define("NDEBUG", "1");
// Use correct proc functions
match std::env::var("CARGO_CFG_TARGET_OS").ok().unwrap().as_str() {
"windows" => cc
.file(basedir.join("libyara/proc/windows.c"))
.define("USE_WINDOWS_PROC", ""),
"linux" => cc
.file(basedir.join("libyara/proc/linux.c"))
.define("USE_LINUX_PROC", ""),
"macos" => cc
.file(basedir.join("libyara/proc/mach.c"))
.define("USE_MACH_PROC", ""),
_ => cc
.file(basedir.join("libyara/proc/none.c"))
.define("USE_NO_PROC", ""),
};
if std::env::var("CARGO_CFG_TARGET_FAMILY")
.ok()
.unwrap()
.as_str()
!= "windows"
{
cc.define("POSIX", "");
};
// Unfortunately, YARA compilation produces lots of warnings
// Ignore some of them.
cc.flag_if_supported("-Wno-deprecated-declarations")
.flag_if_supported("-Wno-unused-parameter")
.flag_if_supported("-Wno-unused-function")
.flag_if_supported("-Wno-cast-function-type")
.flag_if_supported("-Wno-type-limits")
.flag_if_supported("-Wno-tautological-constant-out-of-range-compare")
.flag_if_supported("-Wno-sign-compare"); // maybe this one shouldn't be silenced.
cc.compile("yara");
let include_dir = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("yara/libyara/include");
let lib_dir = std::env::var("OUT_DIR").unwrap();
println!("cargo:rustc-link-search=native={}", lib_dir);
println!("cargo:rustc-link-lib=static=yara");
println!("cargo:include={}", include_dir.display());
println!("cargo:lib={}", lib_dir);
// tell the add_bindings phase to generate bindings from `include_dir`.
std::env::set_var("YARA_INCLUDE_DIR", include_dir);
}
}
#[cfg(not(feature = "vendored"))]
mod build {
/// Tell cargo to tell rustc to link the system yara
/// shared library.
pub fn build_and_link() {
let kind = match std::env::var("LIBYARA_STATIC").ok().as_deref() {
Some("0") => "dylib",
Some(_) => "static",
None => "dylib",
};
println!("cargo:rustc-link-lib={}=yara", kind);
// Add the environment variable YARA_LIBRARY_PATH to the library search path.
if let Some(yara_library_path) = std::env::var("YARA_LIBRARY_PATH")
.ok()
.filter(|path| !path.is_empty())
{
println!("cargo:rustc-link-search=native={}", yara_library_path);
}
}
}
#[cfg(feature = "bundled-4_1_0")]
mod bindings {
use std::env;
use std::fs;
use std::path::PathBuf;
pub fn add_bindings() {
let binding_file = match env::var("CARGO_CFG_TARGET_FAMILY").unwrap().as_ref() {
"unix" => "yara-4.1.0-unix.rs",
"windows" => "yara-4.1.0-windows.rs",
f => panic!("no bundled bindings for family {}", f),
};
let out_dir = env::var("OUT_DIR").expect("$OUT_DIR should be defined");
let out_path = PathBuf::from(out_dir).join("bindings.rs");
fs::copy(PathBuf::from("bindings").join(binding_file), out_path)
.expect("Could not copy bindings to output directory");
}
}
#[cfg(not(feature = "bundled-4_1_0"))]
mod bindings {
extern crate bindgen;
use std::env;
use std::path::PathBuf;
pub fn add_bindings() {
let mut builder = bindgen::Builder::default()
.header("wrapper.h")
.allowlist_var("CALLBACK_.*")
.allowlist_var("ERROR_.*")
.allowlist_var("META_TYPE_.*")
.allowlist_var("META_FLAGS_LAST_IN_RULE")
.allowlist_var("STRING_FLAGS_LAST_IN_RULE")
.allowlist_var("YARA_ERROR_LEVEL_.*")
.allowlist_var("SCAN_FLAGS_.*")
.allowlist_function("yr_initialize")
.allowlist_function("yr_finalize")
.allowlist_function("yr_finalize_thread")
.allowlist_function("yr_compiler_.*")
.allowlist_function("yr_rule_.*")
.allowlist_function("yr_rules_.*")
.allowlist_function("yr_scanner_.*")
.allowlist_type("YR_ARENA")
.allowlist_type("YR_EXTERNAL_VARIABLE")
.allowlist_type("YR_MATCH")
.opaque_type("YR_COMPILER")
.opaque_type("YR_AC_MATCH_TABLE")
.opaque_type("YR_AC_TRANSITION_TABLE")
.opaque_type("_YR_EXTERNAL_VARIABLE");
if let Some(yara_include_dir) = env::var("YARA_INCLUDE_DIR")
.ok()
.filter(|dir| !dir.is_empty())
{
builder = builder.clang_arg(format!("-I{}", yara_include_dir))
}
let bindings = builder.generate().expect("Unable to generate bindings");
// Write the bindings to the $OUT_DIR/bindings.rs file.
let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
bindings
.write_to_file(out_path.join("bindings.rs"))
.expect("Couldn't write bindings!");
}
}