1# 2# Copyright (c) 2025-2026, Arm Limited. All rights reserved. 3# 4# SPDX-License-Identifier: BSD-3-Clause 5# 6 7ifneq ($(AARCH32_INSTRUCTION_SET),$(filter $(AARCH32_INSTRUCTION_SET),A32 T32)) 8 $(error Error: Unknown AArch32 instruction set ${AARCH32_INSTRUCTION_SET}) 9endif 10 11# Check for ENABLE_RME that is replaced by ENABLE_FEAT_RME 12ifeq (${ENABLE_RME},1) 13 $(warning "ENABLE_RME will be deprecated. Use ENABLE_FEAT_RME=1 and ENABLE_RMM=1 instead.") 14endif 15 16# Make sure ENABLE_FEAT_RME configuration is valid 17ifneq (${ENABLE_FEAT_RME},0) 18 ifneq (${SEPARATE_CODE_AND_RODATA},1) 19 $(error ENABLE_FEAT_RME requires SEPARATE_CODE_AND_RODATA) 20 endif 21 22 ifneq (${ARCH},aarch64) 23 $(error ENABLE_FEAT_RME requires AArch64) 24 endif 25 26 ifeq ($(RESET_TO_BL2),0) 27 ifeq ($(ENABLE_FEAT_RME),2) 28 $(warning ENABLE_FEAT_RME=2 forces BL2 to run at EL3 even if FEAT_RME is not present at runtime) 29 endif 30 endif 31 32 ifeq ($(SPMC_AT_EL3),1) 33 $(error SPMC_AT_EL3 and ENABLE_FEAT_RME cannot both be enabled.) 34 endif 35 36 ifneq (${SPD}, none) 37 ifneq (${SPD}, spmd) 38 $(error ENABLE_FEAT_RME is incompatible with SPD=${SPD}. Use SPD=spmd) 39 endif 40 endif 41 42 ifeq ($(SPM_MM),1) 43 $(error SPM_MM and ENABLE_FEAT_RME cannot both be enabled.) 44 endif 45 46 $(warning "FEAT_RME is an experimental feature") 47else 48 ifeq (${ENABLE_FEAT_RME_GDI},1) 49 $(error ENABLE_FEAT_RME_GDI requires ENABLE_FEAT_RME) 50 endif 51endif 52 53# Make sure RMM configuration is valid 54ifeq (${ENABLE_RMM},1) 55 ifneq (${ENABLE_FEAT_RME},1) 56 $(error ENABLE_RMM requires ENABLE_FEAT_RME=1) 57 endif 58 59 $(warning "RMM is an experimental feature") 60endif 61 62ifeq (${CTX_INCLUDE_EL2_REGS}, 1) 63 ifeq (${SPD},none) 64 ifeq (${ENABLE_RMM},0) 65 $(error CTX_INCLUDE_EL2_REGS is available only when SPD \ 66 or RMM is enabled) 67 endif 68 endif 69endif 70 71################################################################################ 72# Verify RMM, FEAT_SCTLR2 and FEAT_TCR2 are enabled if FEAT_MEC is enabled. 73################################################################################ 74 75ifneq (${ENABLE_FEAT_MEC},0) 76 ifeq (${ENABLE_RMM},0) 77 $(error RMM must be enabled when FEAT_MEC is enabled.) 78 endif 79 ifeq (${ENABLE_FEAT_TCR2},0) 80 $(error FEAT_TCR2 must be enabled when FEAT_MEC is enabled.) 81 endif 82 ifeq (${ENABLE_FEAT_SCTLR2},0) 83 $(error FEAT_SCTLR2 must be enabled when FEAT_MEC is enabled.) 84 endif 85endif 86 87# Handle all invalid build configurations with SPMD usage. 88ifeq (${ENABLE_SPMD_LP}, 1) 89ifneq (${SPD},spmd) 90 $(error Error: ENABLE_SPMD_LP requires SPD=spmd.) 91endif 92 93ifeq ($(SPMC_AT_EL3),1) 94 $(error SPMC at EL3 not supported when enabling SPMD Logical partitions.) 95endif 96endif 97 98ifeq (${SUPPORT_SP_LIVE_ACTIVATION}, 1) 99ifeq (${LFA_SUPPORT}, 0) 100 $(error Error: SUPPORT_SP_LIVE_ACTIVATION requires LFA_SUPPORT=1) 101endif #(LFA_SUPPORT) 102ifeq (${ENABLE_SPMD_LP}, 0) 103 $(error Error: SUPPORT_SP_LIVE_ACTIVATION requires ENABLE_SPMD_LP=1) 104endif #(ENABLE_SPMD_LP) 105ifeq (${SPMD_SPM_AT_SEL2},0) 106 $(error Error: SUPPORT_SP_LIVE_ACTIVATION requires SPMD_SPM_AT_SEL2=1) 107endif #(SPMD_SPM_AT_SEL2) 108 $(warning SUPPORT_SP_LIVE_ACTIVATION is an experimental feature) 109endif #(SUPPORT_SP_LIVE_ACTIVATION) 110 111ifneq (${SPD},none) 112ifeq (${ARCH},aarch32) 113 $(error "Error: SPD is incompatible with AArch32.") 114endif 115ifdef EL3_PAYLOAD_BASE 116 $(warning "SPD and EL3_PAYLOAD_BASE are incompatible build options.") 117 $(warning "The SPD and its BL32 companion will be present but ignored.") 118endif 119ifeq (${SPD},spmd) 120ifeq ($(SPMD_SPM_AT_SEL2),1) 121 ifeq ($(SPMC_AT_EL3),1) 122 $(error SPM cannot be enabled in both S-EL2 and EL3.) 123 endif 124 ifeq ($(CTX_INCLUDE_SVE_REGS),1) 125 $(error SVE context management not needed with Hafnium SPMC.) 126 endif 127endif 128 129ifeq ($(SPMC_AT_EL3_SEL0_SP),1) 130 ifneq ($(SPMC_AT_EL3),1) 131 $(error SEL0 SP cannot be enabled without SPMC at EL3) 132 endif 133endif 134endif #(SPD=spmd) 135endif #(SPD!=none) 136 137# USE_DEBUGFS experimental feature recommended only in debug builds 138ifeq (${USE_DEBUGFS},1) 139 ifeq (${DEBUG},1) 140 $(warning DEBUGFS experimental feature is enabled.) 141 else 142 $(warning DEBUGFS experimental, recommended in DEBUG builds ONLY) 143 endif 144endif #(USE_DEBUGFS) 145 146# USE_SPINLOCK_CAS requires AArch64 build 147ifeq (${USE_SPINLOCK_CAS},1) 148 ifneq (${ARCH},aarch64) 149 $(error USE_SPINLOCK_CAS requires AArch64) 150 endif 151endif #(USE_SPINLOCK_CAS) 152 153ifdef EL3_PAYLOAD_BASE 154 ifdef PRELOADED_BL33_BASE 155 $(warning "PRELOADED_BL33_BASE and EL3_PAYLOAD_BASE are \ 156 incompatible build options. EL3_PAYLOAD_BASE has priority.") 157 endif 158 ifneq (${GENERATE_COT},0) 159 $(error "GENERATE_COT and EL3_PAYLOAD_BASE are incompatible \ 160 build options.") 161 endif 162 ifneq (${TRUSTED_BOARD_BOOT},0) 163 $(error "TRUSTED_BOARD_BOOT and EL3_PAYLOAD_BASE are \ 164 incompatible \ build options.") 165 endif 166endif #(EL3_PAYLOAD_BASE) 167 168ifeq (${NEED_BL33},yes) 169 ifdef EL3_PAYLOAD_BASE 170 $(warning "BL33 image is not needed when option \ 171 BL33_PAYLOAD_BASE is used and won't be added to the FIP file.") 172 endif 173 ifdef PRELOADED_BL33_BASE 174 $(warning "BL33 image is not needed when option \ 175 PRELOADED_BL33_BASE is used and won't be added to the FIP file.") 176 endif 177endif #(NEED_BL33) 178 179# When building for systems with hardware-assisted coherency, there's no need to 180# use USE_COHERENT_MEM. Require that USE_COHERENT_MEM must be set to 0 too. 181ifeq ($(HW_ASSISTED_COHERENCY)-$(USE_COHERENT_MEM),1-1) 182 $(error USE_COHERENT_MEM cannot be enabled with HW_ASSISTED_COHERENCY) 183endif 184 185#For now, BL2_IN_XIP_MEM is only supported when RESET_TO_BL2 is 1. 186ifeq ($(RESET_TO_BL2)-$(BL2_IN_XIP_MEM),0-1) 187 $(error "BL2_IN_XIP_MEM is only supported when RESET_TO_BL2 is enabled") 188endif 189 190# RAS_EXTENSION is deprecated, provide alternate build options 191ifeq ($(RAS_EXTENSION),1) 192 $(error "RAS_EXTENSION is now deprecated, please use ENABLE_FEAT_RAS \ 193 and HANDLE_EA_EL3_FIRST_NS instead") 194endif 195 196ifeq ($(ENABLE_FEAT_RAS),0) 197 ifneq ($(FAULT_INJECTION_SUPPORT),0) 198 $(error For FAULT_INJECTION_SUPPORT, ENABLE_FEAT_RAS must not be 0) 199 endif 200 ifneq ($(RAS_TRAP_NS_ERR_REC_ACCESS),0) 201 $(error For RAS_TRAP_NS_ERR_REC_ACCESS, ENABLE_FEAT_RAS must not be 0) 202 endif 203endif #(ENABLE_FEAT_RAS) 204 205# DYN_DISABLE_AUTH can be set only when TRUSTED_BOARD_BOOT=1 206ifeq ($(DYN_DISABLE_AUTH), 1) 207 ifeq (${TRUSTED_BOARD_BOOT}, 0) 208 $(error "TRUSTED_BOARD_BOOT must be enabled for DYN_DISABLE_AUTH \ 209 to be set.") 210 endif 211endif #(DYN_DISABLE_AUTH) 212 213# SDEI_IN_FCONF is only supported when SDEI_SUPPORT is enabled. 214ifeq ($(SDEI_SUPPORT)-$(SDEI_IN_FCONF),0-1) 215 $(error "SDEI_IN_FCONF is only supported when SDEI_SUPPORT is enabled") 216endif 217 218# If pointer authentication is used in the firmware, make sure that all the 219# registers associated to it are also saved and restored. 220# Not doing it would leak the value of the keys used by EL3 to EL1 and S-EL1. 221ifneq ($(ENABLE_PAUTH),0) 222 ifeq ($(CTX_INCLUDE_PAUTH_REGS),0) 223 $(error Pointer Authentication requires CTX_INCLUDE_PAUTH_REGS to be enabled) 224 endif 225endif #(ENABLE_PAUTH) 226 227ifneq ($(CTX_INCLUDE_PAUTH_REGS),0) 228 ifneq (${ARCH},aarch64) 229 $(error CTX_INCLUDE_PAUTH_REGS requires AArch64) 230 endif 231endif #(CTX_INCLUDE_PAUTH_REGS) 232 233# Check ENABLE_FEAT_PAUTH_LR 234ifneq (${ENABLE_FEAT_PAUTH_LR},0) 235 236# Make sure PAUTH is enabled 237ifeq (${ENABLE_PAUTH},0) 238 $(error Error: PAUTH_LR cannot be used without PAUTH (see BRANCH_PROTECTION)) 239endif 240 241# Make sure SCTLR2 is enabled 242ifeq (${ENABLE_FEAT_SCTLR2},0) 243 $(error Error: PAUTH_LR cannot be used without ENABLE_FEAT_SCTLR2) 244endif 245 246ifneq (${ENABLE_FEAT_HACDBS},0) 247 ifeq (${ENABLE_FEAT_HDBSS},0) 248 $(error ENABLE_FEAT_HACDBS requires ENABLE_FEAT_HDBSS) 249 endif 250endif 251 252# FEAT_PAUTH_LR is only supported in aarch64 state 253ifneq (${ARCH},aarch64) 254 $(error ENABLE_FEAT_PAUTH_LR requires AArch64) 255endif 256 257endif # ${ENABLE_FEAT_PAUTH_LR} 258 259ifeq ($(FEATURE_DETECTION),1) 260 $(info FEATURE_DETECTION is an experimental feature) 261endif #(FEATURE_DETECTION) 262 263ifeq ($(FIRME_SUPPORT),1) 264 $(info FIRME_SUPPORT is an experimental feature) 265endif #(FIRME_SUPPORT) 266 267ifneq ($(ENABLE_SME2_FOR_NS), 0) 268 ifeq (${ENABLE_SME_FOR_NS}, 0) 269 $(warning "ENABLE_SME2_FOR_NS requires ENABLE_SME_FOR_NS also \ 270 to be set") 271 $(warning "Forced ENABLE_SME_FOR_NS=1") 272 override ENABLE_SME_FOR_NS := 1 273 endif 274endif #(ENABLE_SME2_FOR_NS) 275 276ifeq (${ARM_XLAT_TABLES_LIB_V1}, 1) 277 ifeq (${ALLOW_RO_XLAT_TABLES}, 1) 278 $(error "ALLOW_RO_XLAT_TABLES requires translation tables \ 279 library v2") 280 endif 281 282 ifneq (${ENABLE_FEAT_RME},0) 283 $(error "ENABLE_FEAT_RME requires version 2 of the Translation \ 284 Tables Library") 285 endif 286endif #(ARM_XLAT_TABLES_LIB_V1) 287 288ifneq (${DECRYPTION_SUPPORT},none) 289 ifeq (${TRUSTED_BOARD_BOOT}, 0) 290 $(error TRUSTED_BOARD_BOOT must be enabled for DECRYPTION_SUPPORT \ 291 to be set) 292 endif 293endif #(DECRYPTION_SUPPORT) 294 295# Ensure that no Aarch64-only features are enabled in Aarch32 build 296ifeq (${ARCH},aarch32) 297 ifneq (${ENABLE_LTO},0) 298 $(error "ENABLE_LTO is not supported with ARCH=aarch32") 299 endif 300 ifneq (${EL3_EXCEPTION_HANDLING},0) 301 $(error "EL3_EXCEPTION_HANDLING is not supported outside BL31") 302 endif 303 304 ifeq (${CRASH_REPORTING},1) 305 $(error "CRASH_REPORTING is not supported with ARCH=aarch32") 306 endif 307 308 # SME/SVE only supported on AArch64 309 ifneq (${ENABLE_SME_FOR_NS},0) 310 $(error "ENABLE_SME_FOR_NS cannot be used with ARCH=aarch32") 311 endif 312 313 ifneq (${ENABLE_SVE_FOR_NS},0) 314 $(error "ENABLE_SVE_FOR_NS cannot be used with ARCH=aarch32") 315 endif 316 317 ifneq (${ENABLE_SPE_FOR_NS},0) 318 $(error "ENABLE_SPE_FOR_NS cannot be used with ARCH=aarch32") 319 endif 320 321 # BRBE is not supported in AArch32 322 ifneq (${ENABLE_BRBE_FOR_NS},0) 323 $(error "ENABLE_BRBE_FOR_NS cannot be used with ARCH=aarch32") 324 endif 325 326 # FEAT_RNG_TRAP is not supported in AArch32 327 ifneq (${ENABLE_FEAT_RNG_TRAP},0) 328 $(error "ENABLE_FEAT_RNG_TRAP cannot be used with ARCH=aarch32") 329 endif 330 331 ifneq (${ENABLE_FEAT_FPMR},0) 332 $(error "ENABLE_FEAT_FPMR cannot be used with ARCH=aarch32") 333 endif 334 335 ifeq (${ARCH_FEATURE_AVAILABILITY},1) 336 $(error "ARCH_FEATURE_AVAILABILITY cannot be used with ARCH=aarch32") 337 endif 338 # FEAT_MOPS is only supported on AArch64 339 ifneq (${ENABLE_FEAT_MOPS},0) 340 $(error "ENABLE_FEAT_MOPS cannot be used with ARCH=aarch32") 341 endif 342 ifneq (${ENABLE_FEAT_GCIE},0) 343 $(error "ENABLE_FEAT_GCIE cannot be used with ARCH=aarch32") 344 endif 345 ifneq (${ENABLE_FEAT_CPA2},0) 346 $(error "ENABLE_FEAT_CPA2 cannot be used with ARCH=aarch32") 347 endif 348 ifneq (${USE_SPINLOCK_CAS},0) 349 $(error "USE_SPINLOCK_CAS is not supported with ARCH=aarch32") 350 endif 351 ifneq (${PLATFORM_NODE_COUNT},1) 352 $(error "NUMA AWARE PER CPU is not supported with ARCH=aarch32") 353 endif 354 ifeq (${ENABLE_FEAT_CRYPTO},1) 355 $(error "ENABLE_FEAT_CRYPTO cannot be used with ARCH=aarch32") 356 endif 357 ifeq (${ENABLE_FEAT_CRYPTO_SHA3},1) 358 $(error "ENABLE_FEAT_CRYPTO_SHA3 cannot be used with ARCH=aarch32") 359 endif 360 ifneq (${ENABLE_FEAT_MPAM},0) 361 $(error "ENABLE_FEAT_MPAM cannot be used with ARCH=aarch32") 362 endif 363 ifneq (${ENABLE_FEAT_UINJ},0) 364 $(error "ENABLE_FEAT_UINJ cannot be used with ARCH=aarch32") 365 endif 366 ifneq (${ENABLE_FEAT_STEP2},0) 367 $(error "ENABLE_FEAT_STEP2 cannot be used with ARCH=aarch32") 368 endif 369 ifneq (${ENABLE_FEAT_HDBSS},0) 370 $(error "ENABLE_FEAT_HDBSS cannot be used with ARCH=aarch32") 371 endif 372 ifneq (${ENABLE_FEAT_HACDBS},0) 373 $(error "ENABLE_FEAT_HACDBS cannot be used with ARCH=aarch32") 374 endif 375endif #(ARCH=aarch32) 376 377ifneq (${ENABLE_FEAT_FPMR},0) 378 ifeq (${ENABLE_FEAT_FGT},0) 379 $(error "ENABLE_FEAT_FPMR requires ENABLE_FEAT_FGT") 380 endif 381 ifeq (${ENABLE_FEAT_HCX},0) 382 $(error "ENABLE_FEAT_FPMR requires ENABLE_FEAT_HCX") 383 endif 384endif #(ENABLE_FEAT_FPMR) 385 386ifneq (${ENABLE_FEAT_CPA2},0) 387 ifeq (${ENABLE_FEAT_SCTLR2},0) 388 $(error "Error: ENABLE_FEAT_CPA2 cannot be used without ENABLE_FEAT_SCTLR2") 389 endif 390endif #${ENABLE_FEAT_CPA2} 391 392ifneq (${ENABLE_SME_FOR_NS},0) 393 ifeq (${ENABLE_SVE_FOR_NS},0) 394 $(error "ENABLE_SME_FOR_NS requires ENABLE_SVE_FOR_NS") 395 endif 396endif #(ENABLE_SME_FOR_NS) 397 398# Secure SME/SVE requires the non-secure component as well 399ifeq (${ENABLE_SME_FOR_SWD},1) 400 ifeq (${ENABLE_SME_FOR_NS},0) 401 $(error "ENABLE_SME_FOR_SWD requires ENABLE_SME_FOR_NS") 402 endif 403 ifeq (${ENABLE_SVE_FOR_SWD},0) 404 $(error "ENABLE_SME_FOR_SWD requires ENABLE_SVE_FOR_SWD") 405 endif 406endif #(ENABLE_SME_FOR_SWD) 407 408# Enabling SVE for SWD requires enabling SVE for NWD due to ENABLE_FEAT 409# mechanism. 410ifeq (${ENABLE_SVE_FOR_SWD},1) 411 ifeq (${ENABLE_SVE_FOR_NS},0) 412 $(error "ENABLE_SVE_FOR_SWD requires ENABLE_SVE_FOR_NS") 413 endif 414endif 415 416# Enabling FEAT_MOPS requires access to hcrx_el2 registers which is 417# available only when FEAT_HCX is enabled. 418ifneq (${ENABLE_FEAT_MOPS},0) 419 ifeq (${ENABLE_FEAT_HCX},0) 420 $(error "ENABLE_FEAT_MOPS requires ENABLE_FEAT_HCX") 421 endif 422endif 423 424# Enabling SVE for both the worlds typically requires the context 425# management of SVE registers. The only exception being SPMC at S-EL2. 426ifeq (${ENABLE_SVE_FOR_SWD}, 1) 427 ifneq (${ENABLE_SVE_FOR_NS}, 0) 428 ifeq (${CTX_INCLUDE_SVE_REGS}-$(SPMD_SPM_AT_SEL2),0-0) 429 $(warning "ENABLE_SVE_FOR_SWD and ENABLE_SVE_FOR_NS together require CTX_INCLUDE_SVE_REGS") 430 endif 431 endif 432endif 433 434# Enabling SHA3 requires regular Crypto extension to be enabled 435ifeq (${ENABLE_FEAT_CRYPTO_SHA3}, 1) 436 ifeq (${ENABLE_FEAT_CRYPTO}, 0) 437 $(error "ENABLE_FEAT_CRYPTO_SHA3 requires ENABLE_FEAT_CRYPTO") 438 endif 439endif 440 441ifeq (${ENABLE_FEAT_CRYPTO_SHA3}, 2) 442 $(warning "ENABLE_FEAT_CRYPTO_SHA3 does not have any effect when set to 2") 443endif 444 445ifeq (${ENABLE_FEAT_CRYPTO}, 2) 446 $(warning "ENABLE_FEAT_CRYPTO does not have any effect when set to 2") 447endif 448 449# Enabling SVE in either world while enabling CTX_INCLUDE_FPREGS requires 450# CTX_INCLUDE_SVE_REGS to be enabled due to architectural dependency between FP 451# and SVE registers. 452ifeq (${CTX_INCLUDE_FPREGS}, 1) 453 ifneq (${ENABLE_SVE_FOR_NS},0) 454 ifeq (${CTX_INCLUDE_SVE_REGS},0) 455 # Warning instead of error due to CI dependency on this 456 $(warning "CTX_INCLUDE_FPREGS and ENABLE_SVE_FOR_NS together require CTX_INCLUDE_SVE_REGS") 457 $(warning "Forced ENABLE_SVE_FOR_NS=0") 458 override ENABLE_SVE_FOR_NS := 0 459 endif 460 endif 461endif #(CTX_INCLUDE_FPREGS) 462 463# SVE context management is only required if secure world has access to SVE/FP 464# functionality. 465# Enabling CTX_INCLUDE_SVE_REGS requires CTX_INCLUDE_FPREGS to be enabled due 466# to architectural dependency between FP and SVE registers. 467ifeq (${CTX_INCLUDE_SVE_REGS},1) 468 ifeq (${ENABLE_SVE_FOR_SWD},0) 469 $(error "CTX_INCLUDE_SVE_REGS requires ENABLE_SVE_FOR_SWD to also be enabled") 470 endif 471 ifeq (${CTX_INCLUDE_FPREGS},0) 472 $(error "CTX_INCLUDE_SVE_REGS requires CTX_INCLUDE_FPREGS to also be enabled") 473 endif #(CTX_INCLUDE_FPREGS) 474endif #(CTX_INCLUDE_SVE_REGS) 475 476# SME cannot be used with CTX_INCLUDE_FPREGS since SPM does its own context 477# management including FPU registers. 478ifeq (${CTX_INCLUDE_FPREGS},1) 479 ifneq (${ENABLE_SME_FOR_NS},0) 480 $(error "ENABLE_SME_FOR_NS cannot be used with CTX_INCLUDE_FPREGS") 481 endif 482endif #(CTX_INCLUDE_FPREGS) 483 484ifeq ($(DRTM_SUPPORT),1) 485 $(info DRTM_SUPPORT is an experimental feature) 486endif 487 488ifeq (${HOB_LIST},1) 489 $(warning HOB_LIST is an experimental feature) 490endif 491 492ifeq (${TRANSFER_LIST},1) 493 $(info TRANSFER_LIST is an experimental feature) 494endif 495 496ifeq ($(PSA_CRYPTO),1) 497 $(info PSA_CRYPTO is an experimental feature) 498endif 499 500ifeq ($(DICE_PROTECTION_ENVIRONMENT),1) 501 $(info DICE_PROTECTION_ENVIRONMENT is an experimental feature) 502endif 503 504ifeq (${LFA_SUPPORT},1) 505 $(warning LFA_SUPPORT is an experimental feature) 506endif #(LFA_SUPPORT) 507 508ifneq (${ENABLE_FEAT_MPAM_PE_BW_CTRL},0) 509 ifeq (${ENABLE_FEAT_MPAM},0) 510 $(error "ENABLE_FEAT_MPAM_PW_BW_CTRL requires ENABLE_FEAT_MPAM") 511 endif 512endif #(ENABLE_FEAT_MPAM_PE_BW_CTRL) 513 514ifneq (${DYNAMIC_WORKAROUND_CVE_2018_3639},0) 515 ifeq (${WORKAROUND_CVE_2018_3639},0) 516 $(error Error: WORKAROUND_CVE_2018_3639 must be 1 if DYNAMIC_WORKAROUND_CVE_2018_3639 is 1) 517 endif 518endif 519 520ifneq ($(ENABLE_FEAT_MORELLO),0) 521 ifneq ($($(ARCH)-cc-id),llvm-clang) 522 $(error ENABLE_FEAT_MORELLO requires Clang toolchain) 523 endif 524 $(warning Morello capability is an experimental feature) 525endif 526 527# Handle all deprecated build options. 528ifeq (${ERROR_DEPRECATED}, 1) 529 ifneq (${NS_TIMER_SWITCH},0) 530 $(error "NS_TIMER_SWITCH breaks Linux preemption model, hence deprecated") 531 endif 532 ifneq (${SPM_MM},0) 533 $(error "SPM_MM build option is deprecated") 534 endif 535endif 536 537ifneq (${ENABLE_FEAT_IDTE3},0) 538 $(info FEAT_IDTE3 is an experimental feature) 539endif #(ENABLE_FEAT_IDTE3) 540