From b47f5e0b91877055367187b5e0c718c14c4cf151 Mon Sep 17 00:00:00 2001
From: Aitor Viana <aitorvs@gmail.com>
Date: Fri, 20 Dec 2024 15:32:27 +0000
Subject: [PATCH] Make builds 16KB compliant (#38)

Task/Issue URL: https://app.asana.com/0/488551667048375/1209000029029641/f

### Description
Make sure the builds are 16KB compatible

### Steps to test this PR
Script to be used during testing
```bash
find . -type f -name "*.so" | while read -r file; do
    result=$(objdump -p "$file" | grep LOAD | awk '{ print $NF }' | head -1)
    echo "$file: $result"
done
```
_Test_
- [x] in the main branch, `cd android` folder and run `./gradlew clean build`
- [x] run the script above
- [x] all `.so` files result in `2**12` alignment
- [x] change to this branch and again `cd android` folder and run `./gradlew clean build`
- [x] run the script above
- [x] all `.so` files result in `2**14` alignment
---
 android/netguard/src/main/cpp/CMakeLists.txt | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/android/netguard/src/main/cpp/CMakeLists.txt b/android/netguard/src/main/cpp/CMakeLists.txt
index 1060776..9d6fd1d 100644
--- a/android/netguard/src/main/cpp/CMakeLists.txt
+++ b/android/netguard/src/main/cpp/CMakeLists.txt
@@ -62,6 +62,9 @@ target_link_libraries( # Specifies the target library.
                        # included in the NDK.
                        ${log-lib} )
 
+#Ensure 16KB compatibility
+target_link_options(netguard PRIVATE "-Wl,-z,max-page-size=16384")
+
 # Makefile requires this to be with "/" to link correctly
 file(TO_CMAKE_PATH ${CMAKE_LIBRARY_OUTPUT_DIRECTORY} OUT_PATH_CMAKE)
 add_custom_target(libwg-go.so WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/wireguard" COMMENT "Building wireguard-go" VERBATIM COMMAND make
@@ -73,7 +76,7 @@ add_custom_target(libwg-go.so WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/../
         ANDROID_PACKAGE_NAME=${ANDROID_PACKAGE_NAME}
         GRADLE_USER_HOME=${GRADLE_USER_HOME}
         CFLAGS=${CMAKE_C_FLAGS}\ -Wno-unused-command-line-argument
-        LDFLAGS=${CMAKE_SHARED_LINKER_FLAGS}\ -fuse-ld=gold
+        LDFLAGS=${CMAKE_SHARED_LINKER_FLAGS}\ -fuse-ld=gold\ -Wl,-z,max-page-size=16384
         DESTDIR=${OUT_PATH_CMAKE}
         BUILDDIR=${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/../generated-src
         )