diff --git a/Makefile b/Makefile
index af829f2..7ebccf9 100644
--- a/Makefile
+++ b/Makefile
@@ -855,71 +855,77 @@
 # Build options checks
 ################################################################################
 
-$(eval $(call assert_boolean,ALLOW_RO_XLAT_TABLES))
-$(eval $(call assert_boolean,COLD_BOOT_SINGLE_CPU))
-$(eval $(call assert_boolean,CREATE_KEYS))
-$(eval $(call assert_boolean,CTX_INCLUDE_AARCH32_REGS))
-$(eval $(call assert_boolean,CTX_INCLUDE_FPREGS))
-$(eval $(call assert_boolean,CTX_INCLUDE_PAUTH_REGS))
-$(eval $(call assert_boolean,CTX_INCLUDE_MTE_REGS))
-$(eval $(call assert_boolean,CTX_INCLUDE_EL2_REGS))
-$(eval $(call assert_boolean,DEBUG))
-$(eval $(call assert_boolean,DYN_DISABLE_AUTH))
-$(eval $(call assert_boolean,EL3_EXCEPTION_HANDLING))
-$(eval $(call assert_boolean,ENABLE_AMU))
-$(eval $(call assert_boolean,ENABLE_ASSERTIONS))
-$(eval $(call assert_boolean,ENABLE_MPAM_FOR_LOWER_ELS))
-$(eval $(call assert_boolean,ENABLE_PIE))
-$(eval $(call assert_boolean,ENABLE_PMF))
-$(eval $(call assert_boolean,ENABLE_PSCI_STAT))
-$(eval $(call assert_boolean,ENABLE_RUNTIME_INSTRUMENTATION))
-$(eval $(call assert_boolean,ENABLE_SPE_FOR_LOWER_ELS))
-$(eval $(call assert_boolean,ENABLE_SVE_FOR_NS))
-$(eval $(call assert_boolean,ERROR_DEPRECATED))
-$(eval $(call assert_boolean,FAULT_INJECTION_SUPPORT))
-$(eval $(call assert_boolean,GENERATE_COT))
-$(eval $(call assert_boolean,GICV2_G0_FOR_EL3))
-$(eval $(call assert_boolean,HANDLE_EA_EL3_FIRST))
-$(eval $(call assert_boolean,HW_ASSISTED_COHERENCY))
-$(eval $(call assert_boolean,INVERTED_MEMMAP))
-$(eval $(call assert_boolean,MEASURED_BOOT))
-$(eval $(call assert_boolean,NS_TIMER_SWITCH))
-$(eval $(call assert_boolean,OVERRIDE_LIBC))
-$(eval $(call assert_boolean,PL011_GENERIC_UART))
-$(eval $(call assert_boolean,PROGRAMMABLE_RESET_ADDRESS))
-$(eval $(call assert_boolean,PSCI_EXTENDED_STATE_ID))
-$(eval $(call assert_boolean,RAS_EXTENSION))
-$(eval $(call assert_boolean,RESET_TO_BL31))
-$(eval $(call assert_boolean,SAVE_KEYS))
-$(eval $(call assert_boolean,SEPARATE_CODE_AND_RODATA))
-$(eval $(call assert_boolean,SEPARATE_NOBITS_REGION))
-$(eval $(call assert_boolean,SPIN_ON_BL1_EXIT))
-$(eval $(call assert_boolean,SPM_MM))
-$(eval $(call assert_boolean,SPMD_SPM_AT_SEL2))
-$(eval $(call assert_boolean,TRUSTED_BOARD_BOOT))
-$(eval $(call assert_boolean,USE_COHERENT_MEM))
-$(eval $(call assert_boolean,USE_DEBUGFS))
-$(eval $(call assert_boolean,ARM_IO_IN_DTB))
-$(eval $(call assert_boolean,SDEI_IN_FCONF))
-$(eval $(call assert_boolean,SEC_INT_DESC_IN_FCONF))
-$(eval $(call assert_boolean,USE_ROMLIB))
-$(eval $(call assert_boolean,USE_TBBR_DEFS))
-$(eval $(call assert_boolean,WARMBOOT_ENABLE_DCACHE_EARLY))
-$(eval $(call assert_boolean,BL2_AT_EL3))
-$(eval $(call assert_boolean,BL2_IN_XIP_MEM))
-$(eval $(call assert_boolean,BL2_INV_DCACHE))
-$(eval $(call assert_boolean,USE_SPINLOCK_CAS))
-$(eval $(call assert_boolean,ENCRYPT_BL31))
-$(eval $(call assert_boolean,ENCRYPT_BL32))
-$(eval $(call assert_boolean,ERRATA_SPECULATIVE_AT))
-$(eval $(call assert_boolean,RAS_TRAP_LOWER_EL_ERR_ACCESS))
-$(eval $(call assert_boolean,COT_DESC_IN_DTB))
-$(eval $(call assert_boolean,USE_SP804_TIMER))
+$(eval $(call assert_booleans,\
+    $(sort \
+        ALLOW_RO_XLAT_TABLES \
+        COLD_BOOT_SINGLE_CPU \
+        CREATE_KEYS \
+        CTX_INCLUDE_AARCH32_REGS \
+        CTX_INCLUDE_FPREGS \
+        CTX_INCLUDE_PAUTH_REGS \
+        CTX_INCLUDE_MTE_REGS \
+        CTX_INCLUDE_EL2_REGS \
+        DEBUG \
+        DYN_DISABLE_AUTH \
+        EL3_EXCEPTION_HANDLING \
+        ENABLE_AMU \
+        ENABLE_ASSERTIONS \
+        ENABLE_MPAM_FOR_LOWER_ELS \
+        ENABLE_PIE \
+        ENABLE_PMF \
+        ENABLE_PSCI_STAT \
+        ENABLE_RUNTIME_INSTRUMENTATION \
+        ENABLE_SPE_FOR_LOWER_ELS \
+        ENABLE_SVE_FOR_NS \
+        ERROR_DEPRECATED \
+        FAULT_INJECTION_SUPPORT \
+        GENERATE_COT \
+        GICV2_G0_FOR_EL3 \
+        HANDLE_EA_EL3_FIRST \
+        HW_ASSISTED_COHERENCY \
+        INVERTED_MEMMAP \
+        MEASURED_BOOT \
+        NS_TIMER_SWITCH \
+        OVERRIDE_LIBC \
+        PL011_GENERIC_UART \
+        PROGRAMMABLE_RESET_ADDRESS \
+        PSCI_EXTENDED_STATE_ID \
+        RAS_EXTENSION \
+        RESET_TO_BL31 \
+        SAVE_KEYS \
+        SEPARATE_CODE_AND_RODATA \
+        SEPARATE_NOBITS_REGION \
+        SPIN_ON_BL1_EXIT \
+        SPM_MM \
+        SPMD_SPM_AT_SEL2 \
+        TRUSTED_BOARD_BOOT \
+        USE_COHERENT_MEM \
+        USE_DEBUGFS \
+        ARM_IO_IN_DTB \
+        SDEI_IN_FCONF \
+        SEC_INT_DESC_IN_FCONF \
+        USE_ROMLIB \
+        USE_TBBR_DEFS \
+        WARMBOOT_ENABLE_DCACHE_EARLY \
+        BL2_AT_EL3 \
+        BL2_IN_XIP_MEM \
+        BL2_INV_DCACHE \
+        USE_SPINLOCK_CAS \
+        ENCRYPT_BL31 \
+        ENCRYPT_BL32 \
+        ERRATA_SPECULATIVE_AT \
+        RAS_TRAP_LOWER_EL_ERR_ACCESS \
+        COT_DESC_IN_DTB \
+        USE_SP804_TIMER \
+)))
 
-$(eval $(call assert_numeric,ARM_ARCH_MAJOR))
-$(eval $(call assert_numeric,ARM_ARCH_MINOR))
-$(eval $(call assert_numeric,BRANCH_PROTECTION))
-$(eval $(call assert_numeric,FW_ENC_STATUS))
+$(eval $(call assert_numerics,\
+    $(sort \
+        ARM_ARCH_MAJOR \
+        ARM_ARCH_MINOR \
+        BRANCH_PROTECTION \
+        FW_ENC_STATUS \
+)))
 
 ifdef KEY_SIZE
         $(eval $(call assert_numeric,KEY_SIZE))
@@ -935,68 +941,71 @@
 # platform to overwrite the default options
 ################################################################################
 
-$(eval $(call add_define,ALLOW_RO_XLAT_TABLES))
-$(eval $(call add_define,ARM_ARCH_MAJOR))
-$(eval $(call add_define,ARM_ARCH_MINOR))
-$(eval $(call add_define,COLD_BOOT_SINGLE_CPU))
-$(eval $(call add_define,CTX_INCLUDE_AARCH32_REGS))
-$(eval $(call add_define,CTX_INCLUDE_FPREGS))
-$(eval $(call add_define,CTX_INCLUDE_PAUTH_REGS))
-$(eval $(call add_define,EL3_EXCEPTION_HANDLING))
-$(eval $(call add_define,CTX_INCLUDE_MTE_REGS))
-$(eval $(call add_define,CTX_INCLUDE_EL2_REGS))
-$(eval $(call add_define,DECRYPTION_SUPPORT_${DECRYPTION_SUPPORT}))
-$(eval $(call add_define,ENABLE_AMU))
-$(eval $(call add_define,ENABLE_ASSERTIONS))
-$(eval $(call add_define,ENABLE_BTI))
-$(eval $(call add_define,ENABLE_MPAM_FOR_LOWER_ELS))
-$(eval $(call add_define,ENABLE_PAUTH))
-$(eval $(call add_define,ENABLE_PIE))
-$(eval $(call add_define,ENABLE_PMF))
-$(eval $(call add_define,ENABLE_PSCI_STAT))
-$(eval $(call add_define,ENABLE_RUNTIME_INSTRUMENTATION))
-$(eval $(call add_define,ENABLE_SPE_FOR_LOWER_ELS))
-$(eval $(call add_define,ENABLE_SVE_FOR_NS))
-$(eval $(call add_define,ENCRYPT_BL31))
-$(eval $(call add_define,ENCRYPT_BL32))
-$(eval $(call add_define,ERROR_DEPRECATED))
-$(eval $(call add_define,FAULT_INJECTION_SUPPORT))
-$(eval $(call add_define,GICV2_G0_FOR_EL3))
-$(eval $(call add_define,HANDLE_EA_EL3_FIRST))
-$(eval $(call add_define,HW_ASSISTED_COHERENCY))
-$(eval $(call add_define,LOG_LEVEL))
-$(eval $(call add_define,MEASURED_BOOT))
-$(eval $(call add_define,NS_TIMER_SWITCH))
-$(eval $(call add_define,PL011_GENERIC_UART))
-$(eval $(call add_define,PLAT_${PLAT}))
-$(eval $(call add_define,PROGRAMMABLE_RESET_ADDRESS))
-$(eval $(call add_define,PSCI_EXTENDED_STATE_ID))
-$(eval $(call add_define,RAS_EXTENSION))
-$(eval $(call add_define,RESET_TO_BL31))
-$(eval $(call add_define,SEPARATE_CODE_AND_RODATA))
-$(eval $(call add_define,SEPARATE_NOBITS_REGION))
-$(eval $(call add_define,RECLAIM_INIT_CODE))
-$(eval $(call add_define,SPD_${SPD}))
-$(eval $(call add_define,SPIN_ON_BL1_EXIT))
-$(eval $(call add_define,SPM_MM))
-$(eval $(call add_define,SPMD_SPM_AT_SEL2))
-$(eval $(call add_define,TRUSTED_BOARD_BOOT))
-$(eval $(call add_define,USE_COHERENT_MEM))
-$(eval $(call add_define,USE_DEBUGFS))
-$(eval $(call add_define,ARM_IO_IN_DTB))
-$(eval $(call add_define,SDEI_IN_FCONF))
-$(eval $(call add_define,SEC_INT_DESC_IN_FCONF))
-$(eval $(call add_define,USE_ROMLIB))
-$(eval $(call add_define,USE_TBBR_DEFS))
-$(eval $(call add_define,WARMBOOT_ENABLE_DCACHE_EARLY))
-$(eval $(call add_define,BL2_AT_EL3))
-$(eval $(call add_define,BL2_IN_XIP_MEM))
-$(eval $(call add_define,BL2_INV_DCACHE))
-$(eval $(call add_define,USE_SPINLOCK_CAS))
-$(eval $(call add_define,ERRATA_SPECULATIVE_AT))
-$(eval $(call add_define,RAS_TRAP_LOWER_EL_ERR_ACCESS))
-$(eval $(call add_define,COT_DESC_IN_DTB))
-$(eval $(call add_define,USE_SP804_TIMER))
+$(eval $(call add_defines,\
+    $(sort \
+        ALLOW_RO_XLAT_TABLES \
+        ARM_ARCH_MAJOR \
+        ARM_ARCH_MINOR \
+        COLD_BOOT_SINGLE_CPU \
+        CTX_INCLUDE_AARCH32_REGS \
+        CTX_INCLUDE_FPREGS \
+        CTX_INCLUDE_PAUTH_REGS \
+        EL3_EXCEPTION_HANDLING \
+        CTX_INCLUDE_MTE_REGS \
+        CTX_INCLUDE_EL2_REGS \
+        DECRYPTION_SUPPORT_${DECRYPTION_SUPPORT} \
+        ENABLE_AMU \
+        ENABLE_ASSERTIONS \
+        ENABLE_BTI \
+        ENABLE_MPAM_FOR_LOWER_ELS \
+        ENABLE_PAUTH \
+        ENABLE_PIE \
+        ENABLE_PMF \
+        ENABLE_PSCI_STAT \
+        ENABLE_RUNTIME_INSTRUMENTATION \
+        ENABLE_SPE_FOR_LOWER_ELS \
+        ENABLE_SVE_FOR_NS \
+        ENCRYPT_BL31 \
+        ENCRYPT_BL32 \
+        ERROR_DEPRECATED \
+        FAULT_INJECTION_SUPPORT \
+        GICV2_G0_FOR_EL3 \
+        HANDLE_EA_EL3_FIRST \
+        HW_ASSISTED_COHERENCY \
+        LOG_LEVEL \
+        MEASURED_BOOT \
+        NS_TIMER_SWITCH \
+        PL011_GENERIC_UART \
+        PLAT_${PLAT} \
+        PROGRAMMABLE_RESET_ADDRESS \
+        PSCI_EXTENDED_STATE_ID \
+        RAS_EXTENSION \
+        RESET_TO_BL31 \
+        SEPARATE_CODE_AND_RODATA \
+        SEPARATE_NOBITS_REGION \
+        RECLAIM_INIT_CODE \
+        SPD_${SPD} \
+        SPIN_ON_BL1_EXIT \
+        SPM_MM \
+        SPMD_SPM_AT_SEL2 \
+        TRUSTED_BOARD_BOOT \
+        USE_COHERENT_MEM \
+        USE_DEBUGFS \
+        ARM_IO_IN_DTB \
+        SDEI_IN_FCONF \
+        SEC_INT_DESC_IN_FCONF \
+        USE_ROMLIB \
+        USE_TBBR_DEFS \
+        WARMBOOT_ENABLE_DCACHE_EARLY \
+        BL2_AT_EL3 \
+        BL2_IN_XIP_MEM \
+        BL2_INV_DCACHE \
+        USE_SPINLOCK_CAS \
+        ERRATA_SPECULATIVE_AT \
+        RAS_TRAP_LOWER_EL_ERR_ACCESS \
+        COT_DESC_IN_DTB \
+        USE_SP804_TIMER \
+)))
 
 ifeq (${SANITIZE_UB},trap)
         $(eval $(call add_define,MONITOR_TRAPS))
diff --git a/bl31/bl31.mk b/bl31/bl31.mk
index 0948e94..735d1fc 100644
--- a/bl31/bl31.mk
+++ b/bl31/bl31.mk
@@ -89,10 +89,16 @@
 CRASH_REPORTING		:=	$(DEBUG)
 endif
 
-$(eval $(call assert_boolean,CRASH_REPORTING))
-$(eval $(call assert_boolean,EL3_EXCEPTION_HANDLING))
-$(eval $(call assert_boolean,SDEI_SUPPORT))
+$(eval $(call assert_booleans,\
+    $(sort \
+	CRASH_REPORTING \
+	EL3_EXCEPTION_HANDLING \
+	SDEI_SUPPORT \
+)))
 
-$(eval $(call add_define,CRASH_REPORTING))
-$(eval $(call add_define,EL3_EXCEPTION_HANDLING))
-$(eval $(call add_define,SDEI_SUPPORT))
+$(eval $(call add_defines,\
+    $(sort \
+        CRASH_REPORTING \
+        EL3_EXCEPTION_HANDLING \
+        SDEI_SUPPORT \
+)))
diff --git a/drivers/auth/mbedtls/mbedtls_common.mk b/drivers/auth/mbedtls/mbedtls_common.mk
index 94f2f59..8454105 100644
--- a/drivers/auth/mbedtls/mbedtls_common.mk
+++ b/drivers/auth/mbedtls/mbedtls_common.mk
@@ -98,10 +98,13 @@
 endif
 
 # Needs to be set to drive mbed TLS configuration correctly
-$(eval $(call add_define,TF_MBEDTLS_KEY_ALG_ID))
-$(eval $(call add_define,TF_MBEDTLS_KEY_SIZE))
-$(eval $(call add_define,TF_MBEDTLS_HASH_ALG_ID))
-$(eval $(call add_define,TF_MBEDTLS_USE_AES_GCM))
+$(eval $(call add_defines,\
+    $(sort \
+        TF_MBEDTLS_KEY_ALG_ID \
+        TF_MBEDTLS_KEY_SIZE \
+        TF_MBEDTLS_HASH_ALG_ID \
+        TF_MBEDTLS_USE_AES_GCM \
+)))
 
 $(eval $(call MAKE_LIB,mbedtls))
 
diff --git a/drivers/measured_boot/measured_boot.mk b/drivers/measured_boot/measured_boot.mk
index fc005d5..b7aa48b 100644
--- a/drivers/measured_boot/measured_boot.mk
+++ b/drivers/measured_boot/measured_boot.mk
@@ -25,10 +25,13 @@
 EVENT_LOG_SIZE			:= 1024
 
 # Set definitions for mbed TLS library and Measured Boot driver
-$(eval $(call add_define,MBEDTLS_MD_ID))
-$(eval $(call add_define,TPM_ALG_ID))
-$(eval $(call add_define,TCG_DIGEST_SIZE))
-$(eval $(call add_define,EVENT_LOG_SIZE))
+$(eval $(call add_defines,\
+    $(sort \
+        MBEDTLS_MD_ID \
+        TPM_ALG_ID \
+        TCG_DIGEST_SIZE \
+        EVENT_LOG_SIZE \
+)))
 
 ifeq (${HASH_ALG}, sha256)
 ifneq (${TPM_HASH_ALG}, sha256)
diff --git a/make_helpers/armv7-a-cpus.mk b/make_helpers/armv7-a-cpus.mk
index 5571ab0..eec85cc 100644
--- a/make_helpers/armv7-a-cpus.mk
+++ b/make_helpers/armv7-a-cpus.mk
@@ -44,10 +44,13 @@
 # Defined if ARMv7 core supports the Generic Timer extension.
 
 ifeq ($(filter yes,$(ARM_CORTEX_A7) $(ARM_CORTEX_A12) $(ARM_CORTEX_A15) $(ARM_CORTEX_A17)),yes)
-$(eval $(call add_define,ARMV7_SUPPORTS_LARGE_PAGE_ADDRESSING))
-$(eval $(call add_define,ARMV7_SUPPORTS_VIRTUALIZATION))
-$(eval $(call add_define,ARMV7_SUPPORTS_GENERIC_TIMER))
-$(eval $(call add_define,ARMV7_SUPPORTS_VFP))
+$(eval $(call add_defines,\
+    $(sort \
+        ARMV7_SUPPORTS_LARGE_PAGE_ADDRESSING \
+        ARMV7_SUPPORTS_VIRTUALIZATION \
+        ARMV7_SUPPORTS_GENERIC_TIMER \
+        ARMV7_SUPPORTS_VFP \
+)))
 endif
 
 ifeq ($(ARM_CORTEX_A5),yes)
diff --git a/make_helpers/build_macros.mk b/make_helpers/build_macros.mk
index 1c3d14d..613fca2 100644
--- a/make_helpers/build_macros.mk
+++ b/make_helpers/build_macros.mk
@@ -44,6 +44,13 @@
     DEFINES			+=	-D$(1)$(if $(value $(1)),=$(value $(1)),)
 endef
 
+
+# Convenience function for addding multiple build definitions
+# $(eval $(call add_defines,FOO BOO))
+define add_defines
+    $(foreach def,$1,$(eval $(call add_define,$(def))))
+endef
+
 # Convenience function for adding build definitions
 # $(eval $(call add_define_val,FOO,BAR)) will have:
 # -DFOO=BAR
@@ -57,6 +64,12 @@
     $(if $(filter-out 0 1,$($1)),$(error $1 must be boolean))
 endef
 
+# Convenience function for verifying options have boolean values
+# $(eval $(call assert_booleans,FOO BOO)) will assert FOO and BOO for 0 or 1 values
+define assert_booleans
+    $(foreach bool,$1,$(eval $(call assert_boolean,$(bool))))
+endef
+
 0-9 := 0 1 2 3 4 5 6 7 8 9
 
 # Function to verify that a given option $(1) contains a numeric value
@@ -67,6 +80,12 @@
 $(if $(__numeric),$(error $(1) must be numeric))
 endef
 
+# Convenience function for verifying options have numeric values
+# $(eval $(call assert_numerics,FOO BOO)) will assert FOO and BOO contain numeric values
+define assert_numerics
+    $(foreach num,$1,$(eval $(call assert_numeric,$(num))))
+endef
+
 # CREATE_SEQ is a recursive function to create sequence of numbers from 1 to
 # $(2) and assign the sequence to $(1)
 define CREATE_SEQ
diff --git a/plat/st/stm32mp1/platform.mk b/plat/st/stm32mp1/platform.mk
index 9998236..41eacc8 100644
--- a/plat/st/stm32mp1/platform.mk
+++ b/plat/st/stm32mp1/platform.mk
@@ -46,16 +46,23 @@
 $(error "No boot device driver is enabled")
 endif
 
-$(eval $(call assert_boolean,STM32MP_EMMC))
-$(eval $(call assert_boolean,STM32MP_SDMMC))
-$(eval $(call assert_boolean,STM32MP_RAW_NAND))
-$(eval $(call assert_boolean,STM32MP_SPI_NAND))
-$(eval $(call assert_boolean,STM32MP_SPI_NOR))
-$(eval $(call add_define,STM32MP_EMMC))
-$(eval $(call add_define,STM32MP_SDMMC))
-$(eval $(call add_define,STM32MP_RAW_NAND))
-$(eval $(call add_define,STM32MP_SPI_NAND))
-$(eval $(call add_define,STM32MP_SPI_NOR))
+$(eval $(call assert_booleans,\
+    $(sort \
+        STM32MP_EMMC \
+        STM32MP_SDMMC \
+        STM32MP_RAW_NAND \
+        STM32MP_SPI_NAND \
+        STM32MP_SPI_NOR \
+)))
+
+$(eval $(call add_defines,\
+    $(sort \
+        STM32MP_EMMC \
+        STM32MP_SDMMC \
+        STM32MP_RAW_NAND \
+        STM32MP_SPI_NAND \
+        STM32MP_SPI_NOR \
+)))
 
 PLAT_INCLUDES		:=	-Iplat/st/common/include/
 PLAT_INCLUDES		+=	-Iplat/st/stm32mp1/include/