From 18c3f13a71241d158ddfaede8e41d442a99a0830 Mon Sep 17 00:00:00 2001
From: Christoph Urlacher <christoph.urlacher@protonmail.com>
Date: Fri, 17 Apr 2026 00:25:22 +0200
Subject: [PATCH] move wamr mmap memory region into .text segment for wamr aot
 mode

---
 flake.nix         | 10 ++++++++--
 targets/linker.ld |  5 +++--
 wasm.just         |  2 ++
 3 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/flake.nix b/flake.nix
index cd9226a..d05cca1 100644
--- a/flake.nix
+++ b/flake.nix
@@ -288,8 +288,14 @@ rec {
             domain = "gitea.local.chriphost.de";
             owner = "christoph";
             repo = "wamr";
-            rev = "fd69a4e76ec0d384bd79f514772b7dfa240fc0d7";
-            hash = "sha256-rlCx4isI0k6rC9E0hWIA9LeinqiACug7zxj9z/e4SBQ=";
+
+            # After placing mmap region in .text segment:
+            rev = "1521011029b0531c02eb0142c239b7f85a3165b5";
+            hash = "sha256-/uLSank+Aacfj+SBliYTaD320cCA1lBRtSRALXErJGE=";
+
+            # Before placing mmap region in .text segment:
+            # rev = "fd69a4e76ec0d384bd79f514772b7dfa240fc0d7";
+            # hash = "sha256-rlCx4isI0k6rC9E0hWIA9LeinqiACug7zxj9z/e4SBQ=";
           };
 
           nativeBuildInputs = with pkgs; [cmake];
diff --git a/targets/linker.ld b/targets/linker.ld
index 0dd893c..abe99b8 100644
--- a/targets/linker.ld
+++ b/targets/linker.ld
@@ -18,7 +18,6 @@ SECTIONS {
     /* Code and readonly data */
     .text : {
         /* fill gaps with int3 opcode to detect invalid jumps */
-        /* TODO: Crashes */
         FILL(0xcc)
 
         /* multiboot header */
@@ -51,7 +50,9 @@ SECTIONS {
     }
 
     /* Data and Stacks */
-    . = 0x200000;
+    /* NOTE: When including the WAMR mmap region inside .text, it has to be large */
+    /* . = 0x200000; */
+    . = ALIGN(4096);
     .data : {
         KEEP (*(".startup_stack"))
         KEEP (*(".kernel_stack"))
diff --git a/wasm.just b/wasm.just
index 4535996..c0a5166 100644
--- a/wasm.just
+++ b/wasm.just
@@ -53,6 +53,8 @@ WAMRCFLAGS := "\
 --target=i386 \
 --cpu=generic \
 --opt-level=0 \
+--enable-indirect-mode \
+--disable-llvm-intrinsics \
 "
 XXD := "xxd"