fix llvm and removed unused dependencies

luisa_compute_sys/Cargo.toml

@@ -6,12 +6,7 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-luisa_compute_api_types = {path = "LuisaCompute/src/rust/luisa_compute_api_types"}
-luisa_compute_backend =  {path = "LuisaCompute/src/rust/luisa_compute_backend"}
-luisa_compute_ir = {path = "../luisa_compute_sys/LuisaCompute/src/rust/luisa_compute_ir"}
-libc = "0.2"
-lazy_static = "1.4"
-parking_lot = "0.12.1"
+
 
 [build-dependencies]
 cmake = "0.1.48"
@@ -27,6 +22,3 @@ metal = []
 dx = []
 oidn = []
 
-
-[lib]
-crate-type = ["dylib"]

luisa_compute_sys/build.rs

@@ -189,4 +189,15 @@ fn copy_dlls(out_dir: &PathBuf) {
 fn main() {
     let out_dir = cmake_build();
     copy_dlls(&out_dir);
+
+    #[cfg(target_os = "linux")]
+    {
+        println!("rerun-if-changed=./llvm_dummy_orc");
+        let out = cmake::Config::new("./llvm_dummy_orc")
+            .build_target("dummy_orc_eh")
+            .build();
+        dbg!(&out);
+        println!("cargo:rustc-link-lib=dylib=dummy_orc_eh");
+        println!("cargo:rustc-link-search=native={}/build", out.display());
+    }
 }

luisa_compute_sys/llvm_hack/CMakeLists.txt

@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 3.15)
+project(dummy_orc_eh)
+
+add_library(dummy_orc_eh SHARED dummy_orc_eh.cc)

luisa_compute_sys/llvm_hack/dummy_orc_eh.cc

@@ -0,0 +1,32 @@
+#include <cstddef>
+namespace dummy_orc_eh
+{
+    union CWrapperFunctionResultDataUnion
+    {
+        char *ValuePtr;
+        char Value[sizeof(ValuePtr)];
+    };
+
+    typedef struct
+    {
+        CWrapperFunctionResultDataUnion Data;
+        size_t Size;
+    } CWrapperFunctionResult;
+    extern "C"
+    {
+        CWrapperFunctionResult llvm_orc_registerEHFrameSectionWrapper(const char *Data, size_t Size)
+        {
+            CWrapperFunctionResult r;
+            r.Data.ValuePtr = nullptr;
+            r.Size = 0;
+            return r;
+        }
+        CWrapperFunctionResult llvm_orc_deregisterEHFrameSectionWrapper(const char *Data, size_t Size)
+        {
+            CWrapperFunctionResult r;
+            r.Data.ValuePtr = nullptr;
+            r.Size = 0;
+            return r;
+        }
+    }
+}

luisa_compute_sys/src/lib.rs

@@ -1,4 +1,4 @@
-use std::{ffi::c_char, ptr::null};
+use std::ffi::c_char;
 // union CWrapperFunctionResultDataUnion {
 //     char *ValuePtr;
 //     char Value[sizeof(ValuePtr)];
@@ -21,28 +21,8 @@ pub struct CWrapperFunctionResult {
     pub Size: usize,
 }
 
-#[no_mangle]
-#[inline(never)]
-pub unsafe extern "C" fn llvm_orc_registerEHFrameSectionWrapper(
-    _data: *const c_char,
-    _size: u64,
-) -> CWrapperFunctionResult {
-    let result = CWrapperFunctionResult {
-        Data: CWrapperFunctionResultDataUnion { ValuePtr: null() },
-        Size: 0,
-    };
-    result
-}
+extern "C" {
+    pub fn llvm_orc_registerEHFrameSectionWrapper(_data: *const c_char, _size: u64);
 
-#[no_mangle]
-#[inline(never)]
-pub unsafe extern "C" fn llvm_orc_deregisterEHFrameSectionWrapper(
-    _data: *const c_char,
-    _size: u64,
-) -> CWrapperFunctionResult {
-    let result = CWrapperFunctionResult {
-        Data: CWrapperFunctionResultDataUnion { ValuePtr: null() },
-        Size: 0,
-    };
-    result
+    pub fn llvm_orc_deregisterEHFrameSectionWrapper(_data: *const c_char, _size: u64);
 }