From 40ae1f4e25d6aff805f2f5eb7b662dbbd4d3979b Mon Sep 17 00:00:00 2001
From: Tulio A M Mendes <tadryanom@hotmail.com>
Date: Thu, 12 Feb 2026 03:46:40 -0300
Subject: [PATCH] refactor: move lwIP port headers from src/net/lwip_port/ to
 include/net/

Moved lwipopts.h and arch/cc.h to include/net/ where they belong
alongside other public headers. Updated Makefile include path from
-Isrc/net/lwip_port to -Iinclude/net.

Also fixed cc.h to use arch-conditional BYTE_ORDER instead of
hardcoding x86 little-endian, supporting ARM, RISC-V, and MIPS
targets.
---
 Makefile                                      | 2 +-
 {src/net/lwip_port => include/net}/arch/cc.h  | 8 +++++++-
 {src/net/lwip_port => include/net}/lwipopts.h | 0
 3 files changed, 8 insertions(+), 2 deletions(-)
 rename {src/net/lwip_port => include/net}/arch/cc.h (75%)
 rename {src/net/lwip_port => include/net}/lwipopts.h (100%)

diff --git a/Makefile b/Makefile
index a12f42c..76d1edc 100644
--- a/Makefile
+++ b/Makefile
@@ -45,7 +45,7 @@ ifeq ($(ARCH),x86)
     C_SOURCES += $(NET_SOURCES)
 
     # Mandatory Architecture Flags
-    ARCH_CFLAGS := -m32 -ffreestanding -fno-builtin -U_FORTIFY_SOURCE -Iinclude -Isrc/net/lwip_port -Ithird_party/lwip/src/include
+    ARCH_CFLAGS := -m32 -ffreestanding -fno-builtin -U_FORTIFY_SOURCE -Iinclude -Iinclude/net -Ithird_party/lwip/src/include
     ARCH_LDFLAGS := -m elf_i386 -T $(SRC_DIR)/arch/x86/linker.ld
     ARCH_ASFLAGS := --32
 
diff --git a/src/net/lwip_port/arch/cc.h b/include/net/arch/cc.h
similarity index 75%
rename from src/net/lwip_port/arch/cc.h
rename to include/net/arch/cc.h
index 3b5070a..26cea98 100644
--- a/src/net/lwip_port/arch/cc.h
+++ b/include/net/arch/cc.h
@@ -4,8 +4,14 @@
 #include <stdint.h>
 #include <stddef.h>
 
-/* Define byte order for x86 (little-endian) */
+/* Define byte order based on target architecture */
+#if defined(__i386__) || defined(__x86_64__) || defined(__arm__) || defined(__aarch64__) || defined(__riscv)
 #define BYTE_ORDER LITTLE_ENDIAN
+#elif defined(__MIPSEB__) || defined(__ARMEB__)
+#define BYTE_ORDER BIG_ENDIAN
+#else
+#define BYTE_ORDER LITTLE_ENDIAN
+#endif
 
 /* Use GCC-style struct packing */
 #define PACK_STRUCT_FIELD(x) x
diff --git a/src/net/lwip_port/lwipopts.h b/include/net/lwipopts.h
similarity index 100%
rename from src/net/lwip_port/lwipopts.h
rename to include/net/lwipopts.h
-- 
2.43.0