X86Assembler: Isolate get_asm() and save_bin() for 32 and 64bit

Author: ubaidsk

src/libasr/codegen/wasm_to_x64.cpp

@@ -695,7 +695,7 @@ Result<int> wasm_to_x64(Vec<uint8_t> &wasm_bytes, Allocator &al,
 
     {
         auto t1 = std::chrono::high_resolution_clock::now();
-        m_a.save_binary(filename);
+        m_a.save_binary64(filename);
         auto t2 = std::chrono::high_resolution_clock::now();
         time_save =
             std::chrono::duration_cast<std::chrono::milliseconds>(t2 - t1)

src/libasr/codegen/x86_assembler.cpp

@@ -10,7 +10,7 @@
 
 namespace LCompilers {
 
-void X86Assembler::save_binary(const std::string &filename) {
+void X86Assembler::save_binary64(const std::string &filename) {
     Vec<uint8_t> bin = create_elf64_x86_binary(m_al, *this);
     {
         std::ofstream out;
@@ -26,6 +26,21 @@ void X86Assembler::save_binary(const std::string &filename) {
 #endif
 }
 
+void X86Assembler::save_binary(const std::string &filename) {
+    {
+        std::ofstream out;
+        out.open(filename);
+        out.write((const char*) m_code.p, m_code.size());
+    }
+#ifdef LFORTRAN_LINUX
+    std::string mode = "0755";
+    int mod = strtol(mode.c_str(), 0, 8);
+    if (chmod(filename.c_str(),mod) < 0) {
+        throw AssemblerError("chmod failed");
+    }
+#endif
+}
+
 // ELF header structure for 32-bit
 struct Elf32_Ehdr {
     uint8_t ident[16];

src/libasr/codegen/x86_assembler.h

@@ -446,7 +446,10 @@ class X86Assembler {
 
 #ifdef LFORTRAN_ASM_PRINT
     std::string get_asm() {
+        return m_asm_code;
+    }
 
+    std::string get_asm64() {
         std::string header =
 R"(BITS 64
     org )" + i2s((uint64_t) m_origin) + R"(
@@ -666,6 +669,7 @@ R"(BITS 64
 
     // Saves the generated machine code into a binary file
     void save_binary(const std::string &filename);
+    void save_binary64(const std::string &filename);
 
     void asm_pop_r64(X64Reg r64) {
         X86Reg r32 = X86Reg(r64 & 7);