enable multilib support for mips

target/config/Config.in

@@ -127,6 +127,21 @@ depends on ADK_TARGET_KERNEL64 && \
 config ADK_TARGET_WITH_MULTILIB 
 	boolean "multilib support"
 
+config ADK_TARGET_MULTILIB_MIPS_64
+	boolean "64 bit libraries (n64 abi)"
+	depends on ADK_LINUX_MIPS && ADK_TARGET_WITH_MULTILIB
+	default y if ADK_n64
+
+config ADK_TARGET_MULTILIB_MIPS_N32
+	boolean "32 bit libraries (n32 abi)"
+	depends on ADK_LINUX_MIPS && ADK_TARGET_WITH_MULTILIB
+	default y if ADK_n32
+
+config ADK_TARGET_MULTILIB_MIPS_O32
+	boolean "32 bit libraries (o32 abi)"
+	depends on ADK_LINUX_MIPS && ADK_TARGET_WITH_MULTILIB
+	default y if ADK_o32
+
 config ADK_TARGET_MULTILIB_X86_64
 	boolean "64 bit libraries"
 	depends on ADK_LINUX_X86_64 && ADK_TARGET_WITH_MULTILIB

toolchain/eglibc/Makefile

@@ -30,7 +30,7 @@ $(WRKBUILD)/.headers_configure:
 			$(EGLIBC_BUILD_DIR_INITIAL)-$${abi/*:/}/option-groups.config; \
 		(cd $(EGLIBC_BUILD_DIR_INITIAL)-$${abi/*:/}; \
 			${EGLIBC_ENV} \
-			CC="${REAL_GNU_TARGET_NAME}-gcc -m$${abi/*:/}" \
+			CC="${REAL_GNU_TARGET_NAME}-gcc ${TCFLAGS}$${abi/*:/}" \
 			$(WRKBUILD)/libc/configure \
 				--prefix=$(STAGING_TARGET_DIR)-$${abi/*:/}/usr \
 				--with-headers=$(STAGING_TARGET_DIR)-$${abi/*:/}/usr/include \
@@ -44,7 +44,7 @@ $(WRKBUILD)/.headers: $(WRKBUILD)/.headers_configure
 	for abi in $(TABI); do \
 		(cd $(EGLIBC_BUILD_DIR_INITIAL)-$${abi/*:/}; \
 			${EGLIBC_ENV} \
-			CC="${REAL_GNU_TARGET_NAME}-gcc -m$${abi/*:/}" \
+			CC="${REAL_GNU_TARGET_NAME}-gcc ${TCFLAGS}$${abi/*:/}" \
 			$(MAKE) install-headers install-bootstrap-headers=yes cross-compiling=yes \
 		); \
 		touch $(STAGING_TARGET_DIR)-$${abi/*:/}/usr/include/gnu/stubs.h; \
@@ -94,7 +94,7 @@ $(WRKBUILD)/.configured:
 			$(EGLIBC_BUILD_DIR_FINAL)-$${abi/*:/}/option-groups.config ;\
 		(cd $(EGLIBC_BUILD_DIR_FINAL)-$${abi/*:/}; \
 			${EGLIBC_ENV} \
-			CC="${REAL_GNU_TARGET_NAME}-gcc -m$${abi/*:/}" \
+			CC="${REAL_GNU_TARGET_NAME}-gcc ${TCFLAGS}$${abi/*:/}" \
 			$(WRKBUILD)/libc/configure \
 				--prefix=/usr \
 				--enable-shared \
@@ -116,6 +116,15 @@ $(WRKBUILD)/.installed: $(EGLIBC_BUILD_DIR_FINAL)/libc.so
 	for abi in $(TABI); do \
 		${EGLIBC_ENV} $(MAKE) -C $(EGLIBC_BUILD_DIR_FINAL)-$${abi/*:/} install_root=$(STAGING_TARGET_DIR)-$${abi/*:/} install ;\
 	done
+ifeq ($(ADK_TARGET_ABI_N64),y)
+	${EGLIBC_ENV} $(MAKE) -C $(EGLIBC_BUILD_DIR_FINAL)-64 install_root=$(STAGING_TARGET_DIR) install
+endif
+ifeq ($(ADK_TARGET_ABI_N32),y)
+	${EGLIBC_ENV} $(MAKE) -C $(EGLIBC_BUILD_DIR_FINAL)-n32 install_root=$(STAGING_TARGET_DIR) install
+endif
+ifeq ($(ADK_TARGET_ABI_O32),y)
+	${EGLIBC_ENV} $(MAKE) -C $(EGLIBC_BUILD_DIR_FINAL)-o32 install_root=$(STAGING_TARGET_DIR) install
+endif
 ifeq ($(ADK_TARGET_ABI_64),y)
 	${EGLIBC_ENV} $(MAKE) -C $(EGLIBC_BUILD_DIR_FINAL)-64 install_root=$(STAGING_TARGET_DIR) install
 endif

toolchain/eglibc/Makefile.multilib

@@ -1,13 +1,44 @@
 # multilib support
 ifeq ($(ADK_TARGET_WITH_MULTILIB),y)
 TABI:=
+TCFLAGS:=
 ifeq ($(ADK_TARGET_MULTILIB_X86_X32),y)
 TABI+=x86_64-openadk-linux-gnu:x32
+TCFLAGS:=-m
 endif
 ifeq ($(ADK_TARGET_MULTILIB_X86_32),y)
 TABI+=i486-openadk-linux-gnu:32
+TCFLAGS:=-m
 endif
 ifeq ($(ADK_TARGET_MULTILIB_X86_64),y)
 TABI+=x86_64-openadk-linux-gnu:64
+TCFLAGS:=-m
+endif
+ifeq ($(ADK_TARGET_MULTILIB_MIPS_N32),y)
+ifeq ($(ADK_KERNEL_CPU_LITTLE_ENDIAN),y)
+TABI+=mips64el-openadk-linux-gnu:n32
+TCFLAGS:=-mabi=
+else
+TABI+=mips64-openadk-linux-gnu:n32
+TCFLAGS:=-mabi=
+endif
+endif
+ifeq ($(ADK_TARGET_MULTILIB_MIPS_O32),y)
+ifeq ($(ADK_KERNEL_CPU_LITTLE_ENDIAN),y)
+TABI+=mips64el-openadk-linux-gnu:o32
+TCFLAGS:=-mabi=
+else
+TABI+=mips64-openadk-linux-gnu:o32
+TCFLAGS:=-mabi=
+endif
+endif
+ifeq ($(ADK_TARGET_MULTILIB_MIPS_64),y)
+ifeq ($(ADK_KERNEL_CPU_LITTLE_ENDIAN),y)
+TABI+=mips64el-openadk-linux-gnu:64
+TCFLAGS:=-mabi=
+else
+TABI+=mips64-openadk-linux-gnu:64
+TCFLAGS:=-mabi=
+endif
 endif
 endif

toolchain/kernel-headers/Makefile

@@ -11,6 +11,18 @@ $(WRKBUILD)/.headers:
 		INSTALL_HDR_PATH=$(STAGING_DIR)/usr \
 		headers_install
 ifeq ($(ADK_TARGET_WITH_MULTILIB),y)
+ifeq ($(ADK_LINUX_MIPS),y)
+	$(MAKE) -C $(WRKBUILD) HOSTCC=$(CC_FOR_BUILD) ARCH=mips V=1 \
+		INSTALL_HDR_PATH=$(STAGING_TARGET_DIR)-n32/usr \
+		headers_install
+	$(MAKE) -C $(WRKBUILD) HOSTCC=$(CC_FOR_BUILD) ARCH=mips V=1 \
+		INSTALL_HDR_PATH=$(STAGING_TARGET_DIR)-64/usr \
+		headers_install
+	$(MAKE) -C $(WRKBUILD) HOSTCC=$(CC_FOR_BUILD) ARCH=mips V=1 \
+		INSTALL_HDR_PATH=$(STAGING_TARGET_DIR)-o32/usr \
+		headers_install
+endif
+ifeq ($(ADK_LINUX_X86_64),y)
 	$(MAKE) -C $(WRKBUILD) HOSTCC=$(CC_FOR_BUILD) ARCH=x86 V=1 \
 		INSTALL_HDR_PATH=$(STAGING_TARGET_DIR)-32/usr \
 		headers_install
@@ -20,6 +32,7 @@ ifeq ($(ADK_TARGET_WITH_MULTILIB),y)
 	$(MAKE) -C $(WRKBUILD) HOSTCC=$(CC_FOR_BUILD) ARCH=x86 V=1 \
 		INSTALL_HDR_PATH=$(STAGING_TARGET_DIR)-64/usr \
 		headers_install
+endif
 endif
 	$(MAKE) -C $(WRKBUILD) HOSTCC=$(CC_FOR_BUILD) ARCH=$(ARCH) V=1 \
 		INSTALL_HDR_PATH=$(LINUX_HEADER_DIR) \