From 82039eea869a48d37f5a610be1a71249334a8316 Mon Sep 17 00:00:00 2001
From: Dwight Guth <dwight.guth@pi2.network>
Date: Thu, 17 Oct 2024 11:59:33 -0500
Subject: [PATCH] add hidden visibility flag (#4666)

This PR adds a flag to kompile which passes through to the llvm backend.
Fairly straightforward.
---
 .../main/java/org/kframework/backend/llvm/LLVMBackend.java  | 3 +++
 .../org/kframework/backend/llvm/LLVMKompileOptions.java     | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/llvm-backend/src/main/java/org/kframework/backend/llvm/LLVMBackend.java b/llvm-backend/src/main/java/org/kframework/backend/llvm/LLVMBackend.java
index 420f6c16761..e154e7b6530 100644
--- a/llvm-backend/src/main/java/org/kframework/backend/llvm/LLVMBackend.java
+++ b/llvm-backend/src/main/java/org/kframework/backend/llvm/LLVMBackend.java
@@ -146,6 +146,9 @@ private void llvmKompile(String type, String executable) {
       if (options.llvmMutableBytes) {
         args.add("--mutable-bytes");
       }
+      if (options.llvmHiddenVisibility) {
+        args.add("--hidden-visibility");
+      }
 
       if (options.debug) {
         args.add("-g");
diff --git a/llvm-backend/src/main/java/org/kframework/backend/llvm/LLVMKompileOptions.java b/llvm-backend/src/main/java/org/kframework/backend/llvm/LLVMKompileOptions.java
index 282b58c2f08..b330a5268a9 100644
--- a/llvm-backend/src/main/java/org/kframework/backend/llvm/LLVMKompileOptions.java
+++ b/llvm-backend/src/main/java/org/kframework/backend/llvm/LLVMKompileOptions.java
@@ -119,4 +119,10 @@ public List<String> convert(String str) {
       description = "Use a faster, unsound representation for byte arrays on the LLVM backend",
       hidden = true)
   public boolean llvmMutableBytes;
+
+  @Parameter(
+      names = "--llvm-hidden-visibility",
+      description = "Build the llvm backend with -fvisibility=hidden",
+      hidden = true)
+  public boolean llvmHiddenVisibility;
 }