Fixed launch failures on NetBSD due to PaX MPROTECT restrictions

CMakeModules/DisablePaxMprotect.cmake

@@ -0,0 +1,11 @@
+function(disable_pax_mprotect target)
+    if (BSD STREQUAL "NetBSD")
+        add_custom_command(TARGET ${target} POST_BUILD
+            COMMAND paxctl +m "$<TARGET_FILE:${target}>"
+            COMMENT "Disabling PaX MPROTECT restrictions for '${target}'"
+            VERBATIM
+        )
+    else()
+        message(FATAL_ERROR "disable_pax_mprotect only applies on NetBSD.")
+    endif()
+endfunction()

src/citra_libretro/CMakeLists.txt

@@ -31,6 +31,11 @@ add_library(azahar_libretro SHARED
 
 create_target_directory_groups(azahar_libretro)
 
+if (BSD STREQUAL "NetBSD")
+    include(DisablePaxMprotect)
+    disable_pax_mprotect(azahar_libretro)
+endif()
+
 target_link_libraries(citra_common PRIVATE libretro)
 target_link_libraries(citra_core PRIVATE libretro)
 target_link_libraries(video_core PRIVATE libretro)

src/citra_meta/CMakeLists.txt

@@ -6,6 +6,11 @@ add_executable(citra_meta
 
 set_target_properties(citra_meta PROPERTIES OUTPUT_NAME "azahar")
 
+if (BSD STREQUAL "NetBSD")
+    include(DisablePaxMprotect)
+    disable_pax_mprotect(citra_meta)
+endif()
+
 if (APPLE)
     set(DIST_DIR "../../dist/apple")
     set(APPLE_RESOURCES

src/citra_room_standalone/CMakeLists.txt

@@ -4,6 +4,11 @@ add_executable(citra_room_standalone
 
 set_target_properties(citra_room_standalone PROPERTIES OUTPUT_NAME "azahar-room")
 
+if (BSD STREQUAL "NetBSD")
+    include(DisablePaxMprotect)
+    disable_pax_mprotect(citra_room_standalone)
+endif()
+
 target_link_libraries(citra_room_standalone PRIVATE citra_room)
 
 if(UNIX AND NOT APPLE)

src/tests/CMakeLists.txt

@@ -23,6 +23,11 @@ add_executable(tests
 
 create_target_directory_groups(tests)
 
+if (BSD STREQUAL "NetBSD")
+    include(DisablePaxMprotect)
+    disable_pax_mprotect(tests)
+endif()
+
 target_link_libraries(tests PRIVATE citra_common citra_core video_core audio_core)
 target_link_libraries(tests PRIVATE ${PLATFORM_LIBRARIES} catch2 nihstro-headers Threads::Threads)