From e1fba7a7b4418e58e8c595619106d7a3df6b4db4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Josep=20Maria=20Antol=C3=ADn=20Segura?= <josepma@gmail.com>
Date: Sat, 22 Jun 2024 03:20:49 +0200
Subject: [PATCH] Fixes to build under arm32 ( raspberry pi on 32bit debian).
 (#261)

---
 CMakeLists.txt            |  9 +++++++--
 cmake/arch-detect.cmake   |  9 ++++++++-
 src/codegen/codegen.cmake | 16 +++++++---------
 3 files changed, 22 insertions(+), 12 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c42c6415..7cce6c1d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,8 +15,13 @@ if(${PCEM_CPU_TYPE} STREQUAL "i386")
         set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse2")
 endif()
 
-set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -fomit-frame-pointer -mstackrealign -fno-strict-aliasing")
-set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fomit-frame-pointer -mstackrealign -fno-strict-aliasing")
+if(${PCEM_CPU_TYPE} MATCHES "arm.*")
+        set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -fomit-frame-pointer -fno-strict-aliasing")
+        set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fomit-frame-pointer -fno-strict-aliasing")
+else()
+        set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -fomit-frame-pointer -mstackrealign -fno-strict-aliasing")
+        set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fomit-frame-pointer -mstackrealign -fno-strict-aliasing")
+endif()
 
 if (UNIX)
 	add_definitions(-D_FILE_OFFSET_BITS=64)
diff --git a/cmake/arch-detect.cmake b/cmake/arch-detect.cmake
index a43026a2..753d22c3 100644
--- a/cmake/arch-detect.cmake
+++ b/cmake/arch-detect.cmake
@@ -1,9 +1,15 @@
 set(archdetect_c_code "
 #if defined(__arm__) || defined(__TARGET_ARCH_ARM)
-    #if defined(__ARM_ARCH_7__) \\
+    #if defined(__ARM_ARCH_8__) \\
+        || defined(__ARM_ARCH_8A__) \\
+        || (defined(__ARM_ARCH) && __ARM_ARCH >= 8) \\
+        || (defined(__TARGET_ARCH_ARM) && __TARGET_ARCH_ARM-0 >= 8)
+        #error cmake_ARCH armv8
+    #elif defined(__ARM_ARCH_7__) \\
         || defined(__ARM_ARCH_7A__) \\
         || defined(__ARM_ARCH_7R__) \\
         || defined(__ARM_ARCH_7M__) \\
+        || (defined(__ARM_ARCH) && __ARM_ARCH >= 7) \\
         || (defined(__TARGET_ARCH_ARM) && __TARGET_ARCH_ARM-0 >= 7)
         #error cmake_ARCH armv7
     #elif defined(__ARM_ARCH_6__) \\
@@ -13,6 +19,7 @@ set(archdetect_c_code "
         || defined(__ARM_ARCH_6K__) \\
         || defined(__ARM_ARCH_6ZK__) \\
         || defined(__ARM_ARCH_6M__) \\
+        || (defined(__ARM_ARCH) && __ARM_ARCH >= 6) \\
         || (defined(__TARGET_ARCH_ARM) && __TARGET_ARCH_ARM-0 >= 6)
         #error cmake_ARCH armv6
     #elif defined(__ARM_ARCH_5TEJ__) \\
diff --git a/src/codegen/codegen.cmake b/src/codegen/codegen.cmake
index c164f938..204f6321 100644
--- a/src/codegen/codegen.cmake
+++ b/src/codegen/codegen.cmake
@@ -106,14 +106,6 @@ if(${PCEM_CPU_TYPE} STREQUAL "i386")
                 )
 endif()
 
-if(${PCEM_CPU_TYPE} STREQUAL "arm")
-        set(PCEM_SRC ${PCEM_SRC}
-                codegen/arm32/codegen_backend_arm.c
-                codegen/arm32/codegen_backend_arm_ops.c
-                codegen/arm32/codegen_backend_arm_uops.c
-                )
-endif()
-
 if(${PCEM_CPU_TYPE} STREQUAL "arm64")
         set(PCEM_SRC ${PCEM_SRC}
                 codegen/arm64/codegen_backend_arm64.c
@@ -121,4 +113,10 @@ if(${PCEM_CPU_TYPE} STREQUAL "arm64")
                 codegen/arm64/codegen_backend_arm64_ops.c
                 codegen/arm64/codegen_backend_arm64_uops.c
                 )
-endif()
\ No newline at end of file
+elseif(${PCEM_CPU_TYPE} MATCHES "armv.*")
+        set(PCEM_SRC ${PCEM_SRC}
+                codegen/arm32/codegen_backend_arm.c
+                codegen/arm32/codegen_backend_arm_ops.c
+                codegen/arm32/codegen_backend_arm_uops.c
+                )
+endif()