Makefile 5.0 KB

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  1. # libwolfssl Linux kernel module Makefile (wraps Kbuild-native makefile)
  2. #
  3. # Copyright (C) 2006-2023 wolfSSL Inc.
  4. #
  5. # This file is part of wolfSSL.
  6. #
  7. # wolfSSL is free software; you can redistribute it and/or modify
  8. # it under the terms of the GNU General Public License as published by
  9. # the Free Software Foundation; either version 2 of the License, or
  10. # (at your option) any later version.
  11. #
  12. # wolfSSL is distributed in the hope that it will be useful,
  13. # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15. # GNU General Public License for more details.
  16. #
  17. # You should have received a copy of the GNU General Public License
  18. # along with this program; if not, write to the Free Software
  19. # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
  20. SHELL=/bin/bash
  21. all: libwolfssl.ko libwolfssl.ko.signed
  22. .PHONY: libwolfssl.ko
  23. ifndef MODULE_TOP
  24. MODULE_TOP=$(CURDIR)
  25. endif
  26. ifndef SRC_TOP
  27. SRC_TOP=$(shell dirname $(MODULE_TOP))
  28. endif
  29. WOLFSSL_CFLAGS=-DHAVE_CONFIG_H -I$(SRC_TOP) -DBUILDING_WOLFSSL $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -Wno-declaration-after-statement -Wno-redundant-decls -DLIBWOLFSSL_GLOBAL_EXTRA_CFLAGS="\" $(KERNEL_EXTRA_CFLAGS)\""
  30. ifdef KERNEL_EXTRA_CFLAGS
  31. WOLFSSL_CFLAGS += $(KERNEL_EXTRA_CFLAGS)
  32. endif
  33. WOLFSSL_ASFLAGS=-DHAVE_CONFIG_H -I$(SRC_TOP) -DBUILDING_WOLFSSL $(AM_CCASFLAGS) $(CCASFLAGS)
  34. WOLFSSL_OBJ_FILES=$(patsubst %.lo, %.o, $(patsubst src/src_libwolfssl_la-%, src/%, $(patsubst src/libwolfssl_la-%, src/%, $(patsubst wolfcrypt/src/src_libwolfssl_la-%, wolfcrypt/src/%, $(src_libwolfssl_la_OBJECTS)))))
  35. ifeq "$(ENABLED_CRYPT_TESTS)" "yes"
  36. WOLFSSL_OBJ_FILES+=wolfcrypt/test/test.o
  37. else
  38. WOLFSSL_CFLAGS+=-DNO_CRYPT_TEST
  39. endif
  40. ifeq "$(ENABLED_LINUXKM_BENCHMARKS)" "yes"
  41. WOLFSSL_OBJ_FILES+=wolfcrypt/benchmark/benchmark.o
  42. endif
  43. ifeq "$(ENABLED_LINUXKM_PIE)" "yes"
  44. WOLFCRYPT_PIE_FILES := linuxkm/pie_first.o $(filter wolfcrypt/src/%,$(WOLFSSL_OBJ_FILES)) linuxkm/pie_redirect_table.o linuxkm/pie_last.o
  45. WOLFSSL_OBJ_FILES := $(WOLFCRYPT_PIE_FILES) $(filter-out $(WOLFCRYPT_PIE_FILES),$(WOLFSSL_OBJ_FILES))
  46. endif
  47. export WOLFSSL_CFLAGS WOLFSSL_ASFLAGS WOLFSSL_OBJ_FILES WOLFCRYPT_PIE_FILES
  48. libwolfssl.ko:
  49. @if test -z "$(KERNEL_ROOT)"; then echo '$$KERNEL_ROOT is unset' >&2; exit 1; fi
  50. @if test -z "$(AM_CFLAGS)$(CFLAGS)"; then echo '$$AM_CFLAGS and $$CFLAGS are both unset.' >&2; exit 1; fi
  51. @if test -z "$(src_libwolfssl_la_OBJECTS)"; then echo '$$src_libwolfssl_la_OBJECTS is unset.' >&2; exit 1; fi
  52. @if test ! -h $(SRC_TOP)/Kbuild; then ln -s $(MODULE_TOP)/Kbuild $(SRC_TOP)/Kbuild; fi
  53. # after commit 9a0ebe5011 (6.10), sources must be in $(obj). work around this by making links to all needed sources:
  54. @mkdir -p linuxkm
  55. @cp --no-dereference --symbolic-link --update=none '$(MODULE_TOP)'/*.[ch] '$(MODULE_TOP)'/linuxkm/
  56. @cp --no-dereference --symbolic-link --update=none --recursive '$(SRC_TOP)'/wolfcrypt '$(MODULE_TOP)'/
  57. @cp --no-dereference --symbolic-link --update=none --recursive '$(SRC_TOP)'/src '$(MODULE_TOP)'/
  58. ifeq "$(ENABLED_LINUXKM_PIE)" "yes"
  59. +$(MAKE) -C $(KERNEL_ROOT) M=$(MODULE_TOP) $(KBUILD_EXTRA_FLAGS) CC_FLAGS_FTRACE=
  60. else
  61. +$(MAKE) -C $(KERNEL_ROOT) M=$(MODULE_TOP) $(KBUILD_EXTRA_FLAGS)
  62. endif
  63. libwolfssl.ko.signed: libwolfssl.ko
  64. @cd '$(KERNEL_ROOT)' || exit $$?; \
  65. while read configline; do \
  66. case "$$configline" in \
  67. CONFIG_MODULE_SIG*=*) \
  68. declare "$${configline%=*}"="$${configline#*=}" \
  69. ;; \
  70. esac; \
  71. done < .config || exit $$?; \
  72. if [[ "$${CONFIG_MODULE_SIG}" = "y" && -n "$${CONFIG_MODULE_SIG_KEY}" && \
  73. -n "$${CONFIG_MODULE_SIG_HASH}" && ( ! -f '$(MODULE_TOP)/$@' || \
  74. '$(MODULE_TOP)/$<' -nt '$(MODULE_TOP)/$@' ) ]]; then \
  75. CONFIG_MODULE_SIG_KEY="$${CONFIG_MODULE_SIG_KEY#\"}"; \
  76. CONFIG_MODULE_SIG_KEY="$${CONFIG_MODULE_SIG_KEY%\"}"; \
  77. CONFIG_MODULE_SIG_HASH="$${CONFIG_MODULE_SIG_HASH#\"}"; \
  78. CONFIG_MODULE_SIG_HASH="$${CONFIG_MODULE_SIG_HASH%\"}"; \
  79. cp -p '$(MODULE_TOP)/$<' '$(MODULE_TOP)/$@' || exit $$?; \
  80. ./scripts/sign-file "$${CONFIG_MODULE_SIG_HASH}" \
  81. "$${CONFIG_MODULE_SIG_KEY}" \
  82. "$${CONFIG_MODULE_SIG_KEY/%.pem/.x509}" \
  83. '$(MODULE_TOP)/$@'; \
  84. sign_file_exitval=$$?; \
  85. if [[ $$sign_file_exitval != 0 ]]; then \
  86. $(RM) -f '$(MODULE_TOP)/$@'; \
  87. exit $$sign_file_exitval; \
  88. fi; \
  89. if [[ "$(quiet)" != "silent_" ]]; then \
  90. echo " Module $@ signed by $${CONFIG_MODULE_SIG_KEY}."; \
  91. fi \
  92. fi
  93. .PHONY: install modules_install
  94. install modules_install:
  95. +$(MAKE) -C $(KERNEL_ROOT) M=$(MODULE_TOP) src=$(SRC_TOP) INSTALL_MOD_DIR=wolfssl modules_install
  96. .PHONY: clean
  97. # note, must supply $(MODULE_TOP) as the src value for clean so that Kbuild is included, else
  98. # the top Makefile (which is not for the kernel build) would be included here.
  99. clean:
  100. +$(MAKE) -C $(KERNEL_ROOT) M=$(MODULE_TOP) src=$(MODULE_TOP) clean
  101. .PHONY: check
  102. check:
  103. .PHONY: distclean
  104. distclean: clean
  105. .PHONY: dist
  106. dist:
  107. .PHONY: distdir
  108. distdir: