1# -*- mode: makefile;-*- 2# 3# Copyright (C) 2021 Apple Inc. All rights reserved. 4# 5# MakeInc.san contains global definitions for building, 6# linking and installing sanitizer runtime support. 7# 8 9# 10# Generates rule to build symbolset file from specific export file. 11# 12# $(1) - Kext name (without .symbolset suffix) 13# $(2) - Exports name (without .exports suffix) 14 15define san_symbolset_template 16 17SYMBOL_SET_BUILD_$(1) := $$(OBJPATH)/config/$(1).symbolset 18 19# Our external dependency on config/allsymbols from config hierarchy config_all is hardcoded in the toplevel Makefile! 20$$(SYMBOL_SET_BUILD_$(1)): $$(SRCROOT)/config/$(2).exports $$(OBJPATH)/config/allsymbols $$(KEXT_CREATE_SYMBOL_SET) 21 @$$(LOG_SYMBOLSET) "$(1)$$(Color0) ($$(ColorLF)$$(CURRENT_ARCH_CONFIG_LC), $$(CURRENT_KERNEL_CONFIG_LC) $$(Color0))" 22 $$(_v)$$(KEXT_CREATE_SYMBOL_SET) \ 23 $$(ARCH_FLAGS_$$(CURRENT_ARCH_CONFIG)) \ 24 -import $$(OBJPATH)/config/allsymbols \ 25 -export $$< \ 26 -output $$@ $(_vstdout) 27 28endef 29 30# 31# Generate rule to build System.kext plugin for give sanitizer. 32# 33# $(1) - Name of the kext plugin 34# $(2) - Name of the kext variant binary (Kasan_kasan, Kcov, ...) 35# 36 37define san_kext_dstroot_rule_template 38 39DSTROOT_KEXT_$(2) := $$(DSTROOT_SYSTEM_KEXT_PATH)/$(1)/$(2) 40 41$$(DSTROOT_KEXT_$(2)): $$(DSTROOT_SYSTEM_KEXT_PATH)/$(1)/% : $$(SYMROOT_SYSTEM_KEXT_PATH)/$(1)/% 42 $$(_v)$$(MKDIR) $$(@D) 43 @$$(LOG_INSTALLVARIANT) "$$(Color0)symbolset $$(ColorF)$$(@F)$$(Color0) ($$(ColorLF)$$(CURRENT_KERNEL_CONFIG_LC)$$(Color0))" 44 $$(_v)$$(INSTALL) $$(EXEC_INSTALL_FLAGS) $$< $$@ 45 46endef 47 48# 49# Generate rule to build System.kext plugin in SYMROOT 50# 51# $(1) - Name of the kext plugin 52# $(2) - Name of the kext variant binary (Kasan_kasan, Kcov, ...) 53# $(3) - build configs to get symbolset binaries from corresponding OBJDIR 54# 55 56define san_kext_symroot_rule_template 57 58SYMROOT_KEXT_$(2) := $$(SYMROOT_SYSTEM_KEXT_PATH)/$(1)/$(2) 59 60$$(SYMROOT_KEXT_$(2)): $$(addsuffix /config/$(2).symbolset, \ 61 $$(addprefix $$(OBJROOT)/,$$(foreach bc,$(3),$$(call function_convert_build_config_to_objdir,$$(bc))))) 62 @$$(LOG_INSTALLSYM) "$$(Color0)symbolset $$(ColorF)$(2)$$(Color0) ($$(ColorLF)$$(CURRENT_KERNEL_CONFIG_LC)$$(Color0))" 63 $$(_v)$$(MKDIR) $$(@D) 64 $$(_v)$$(LIPO) -create `(echo $$^ | xargs -L 1 lipo -detailed_info) | \ 65 awk '/is architecture/ {s[$$$$6]=$$$$3} END {for (a in s) {print s[a]}}'` -output $$@ $$(_vstdout) 66 67endef 68