From e28cbb2efac9ed6e56cd9ab6eb1a3f16810d575a Mon Sep 17 00:00:00 2001
From: _ov4 <ov4@ov4.org>
Date: Tue, 13 Oct 2026 03:54:49 +0000
Subject: feat: embed a statically linked LLVM execution engine

Add EMBEDDED mode to run generated modules in-process without lli or PATH
lookup. Link LLVM and support archives plus the C++ runtime statically,
while retaining the system C runtime on Linux.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
---
 tools/driver/main.cc | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'tools/driver/main.cc')

diff --git a/tools/driver/main.cc b/tools/driver/main.cc
index f5373a0..4df8562 100644
--- a/tools/driver/main.cc
+++ b/tools/driver/main.cc
@@ -1,6 +1,9 @@
 #include "cps/Lexer.h"
 #include "cps/Parser.h"
 #include "cps/CodeGen.h"
+#ifdef CPSC_RUN_EMBEDDED
+#include "EmbeddedRunner.h"
+#endif
 #include "llvm/ADT/SmallString.h"
 #include "llvm/Support/FileSystem.h"
 #include "llvm/Support/FileUtilities.h"
@@ -48,7 +51,9 @@ int main(int argc, char **argv) {
         llvm::errs() << "Error: no source file specified\n";
         return 1;
     }
+#ifdef CPSC_RUN_PATH
     std::string LliPath;
+#endif
     if (Run) {
 #ifdef CPSC_RUN_PATH
         auto Lli = llvm::sys::findProgramByName("lli");
@@ -57,7 +62,7 @@ int main(int argc, char **argv) {
             return 1;
         }
         LliPath = *Lli;
-#else
+#elif defined(CPSC_RUN_NONE)
         llvm::errs() << "Error: -r is disabled in this build (CPSC_RUN_MODE=NONE)\n";
         return 1;
 #endif
@@ -93,6 +98,9 @@ int main(int argc, char **argv) {
 
     if (CG.hadError()) return 1;
 
+#ifdef CPSC_RUN_EMBEDDED
+    if (Run && OutputPath.empty()) return runEmbedded(CG);
+#endif
     std::error_code EC;
     int OutputFD;
     llvm::FileRemover TemporaryOutput;
@@ -137,6 +145,8 @@ int main(int argc, char **argv) {
         return 1;
     }
     return Result;
+#elif defined(CPSC_RUN_EMBEDDED)
+    return runEmbedded(CG);
 #else
     return 0;
 #endif
-- 
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