From 4334a1985b49fcff714c7a023197d1594abeb200 Mon Sep 17 00:00:00 2001
From: rajdakin <rajdakin@gmail.com>
Date: Fri, 31 Mar 2023 17:33:40 +0200
Subject: [WRAPPER HELPER] First pass toward a better wrapper helper (#658)

---
 wrapperhelper/main.cpp | 48 +++++++++++++++++++++++++-----------------------
 1 file changed, 25 insertions(+), 23 deletions(-)

(limited to 'wrapperhelper/main.cpp')

diff --git a/wrapperhelper/main.cpp b/wrapperhelper/main.cpp
index 1d228b43..bb182359 100644
--- a/wrapperhelper/main.cpp
+++ b/wrapperhelper/main.cpp
@@ -1,61 +1,63 @@
 #include "ast.h"
 #include "utils.h"
 
-
-void dump_usage() {
+static void dump_usage() {
     std::string Usage = R"usage(
         usage: command <filename> <libname> [guest_triple] [host_triple] -- <clang_flags>
-                <filename> : set the header file to be parsed
-                <libname>  : set libname required for wrapping func
-                [guest_triple]: set guest triple arm32/arm64/x86/x64, default is x86
-                [host_triple]: set host tripe arm32/arm64/x86/x64, default is arm32
-                -- : is necessary
+                <filename>    : set the header file to be parsed
+                <libname>     : set libname required for wrapping func
+                [guest_triple]: set guest triple: can be arm32/arm64/x86/x64, default is x64
+                [host_triple] : set host triple: can be arm32/arm64/x86/x64, default is arm64
+                --            : mandatory
+                <clang_flags> : extra compiler flags
     )usage";
     std::cerr << Usage << std::endl;
 }
 
 std::string parse_triple(const char* arg) {
-    if (strcmp(arg, "arm32") == 0) {
-        return TripleName[ARM32];
-    } else if (strcmp(arg, "arm64") == 0) {
-        return TripleName[ARM64];
-    } else if (strcmp(arg, "x86") == 0) {
-        return TripleName[X86];
+    if (strcmp(arg, "x86") == 0) {
+        return "i386-pc-linux-gnu";
     } else if (strcmp(arg, "x64") == 0) {
-        return TripleName[X64];
+        return "x86_64-pc-linux-gnu";
+    } else if (strcmp(arg, "arm32") == 0) {
+        return "armv7-unknown-linux-gnueabihf";
+    } else if (strcmp(arg, "arm64") == 0) {
+        return "aarch64-unknown-linux-gnu";
     } else {
+        std::cerr << "Invalid triple: '" << arg << "'\n";
+        dump_usage();
         return "";
     }
 }
 
-using namespace clang::tooling;
 int main(int argc, const char* argv[]) {
     if (argc < 4) {
         dump_usage();
         return 0;
     }
     std::string libname = argv[2];
-    std::string guest_triple = TripleName[X64];
-    std::string host_triple = TripleName[ARM64];
+    std::string guest_triple = parse_triple("x64");
+    std::string host_triple = parse_triple("arm64");
     if (argc >= 5) {
         guest_triple = parse_triple(argv[3]);
     }
     if (argc >= 6) {
         host_triple = parse_triple(argv[4]);
     }
-    bool has_nessary_tag = false;
+    bool has_necessary_tag = false;
     for (int i = 0; i < argc; i++) {
         if (strcmp(argv[i], "--") == 0) {
-            has_nessary_tag = true;
+            has_necessary_tag = true;
             break;
         }
     }
-    if (!has_nessary_tag) {
-        std::cerr << "Please add '--' after triple arg" << std::endl;
+    if (!has_necessary_tag) {
+        std::cerr << "Please add '--' after the triples" << std::endl;
+        dump_usage();
         return 0;
     }
     std::string err;
-    auto compile_db = FixedCompilationDatabase::loadFromCommandLine(argc, argv, err);
-    ClangTool Tool(*compile_db, {argv[1]});
+    auto compile_db = clang::tooling::FixedCompilationDatabase::loadFromCommandLine(argc, argv, err);
+    clang::tooling::ClangTool Tool(*compile_db, {argv[1]});
     return Tool.run(std::make_unique<MyFrontendActionFactory>(libname, host_triple, guest_triple).get());
 }
-- 
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