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https://mirrors.bfsu.edu.cn/git/linux.git
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Kbuild updates for v5.9
- run the checker (e.g. sparse) after the compiler - remove unneeded cc-option tests for old compiler flags - fix tar-pkg to install dtbs - introduce ccflags-remove-y and asflags-remove-y syntax - allow to trace functions in sub-directories of lib/ - introduce hostprogs-always-y and userprogs-always-y syntax - various Makefile cleanups -----BEGIN PGP SIGNATURE----- iQJJBAABCgAzFiEEbmPs18K1szRHjPqEPYsBB53g2wYFAl8wJXEVHG1hc2FoaXJv eUBrZXJuZWwub3JnAAoJED2LAQed4NsGMGEP/0jDq/WafbfPN0aU83EqEWLt/sKg bluzmf/6HGx3XVRnuAzsHNNqysUx77WJiDsU/jbC/zdH8Iox3Sc1diE2sELLNAfY iJmQ8NBPggyU74aYG3OJdpDjz8T9EX/nVaYrjyFlbuXElM+Qvo8Z4Fz6NpWqKWlA gU+yGxEPPdX6MLHcSPSIu1hGWx7UT4fgfx3zDFTI2qvbQgQjKtzyTjAH5Cm3o87h rfomvHSSoAUg+Fh1LediRh1tJlkdVO+w7c+LNwCswmdBtkZuxecj1bQGUTS8GaLl CCWOKYfWp0KsVf1veXNNNaX/ecbp+Y34WErFq3V9Fdq5RmVlp+FPSGMyjDMRiQ/p LGvzbJLPpG586MnK8of0dOj6Es6tVPuq6WH2HuvsyTGcZJDpFTTxRcK3HDkE8ig6 ZtuM3owB/Mep8IzwY2yWQiDrc7TX5Fz8S4hzGPU1zG9cfj4VT6TBqHGAy1Eql/0l txj6vJpnbQSdXiIX8MIU3yH35Y7eW3JYWgspTZH5Woj1S/wAWwuG93Fuuxq6mQIJ q6LSkMavtOfuCjOA9vJBZewpKXRU6yo0CzWNL/5EZ6z/r/I+DGtfb/qka8oYUDjX 9H0cecL37AQxDHRPTxCZDQF0TpYiFJ6bmnMftK9NKNuIdvsk9DF7UBa3EdUNIj38 yKS3rI7Lw55xWuY3 =bkNQ -----END PGP SIGNATURE----- Merge tag 'kbuild-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild updates from Masahiro Yamada: - run the checker (e.g. sparse) after the compiler - remove unneeded cc-option tests for old compiler flags - fix tar-pkg to install dtbs - introduce ccflags-remove-y and asflags-remove-y syntax - allow to trace functions in sub-directories of lib/ - introduce hostprogs-always-y and userprogs-always-y syntax - various Makefile cleanups * tag 'kbuild-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kbuild: stop filtering out $(GCC_PLUGINS_CFLAGS) from cc-option base kbuild: include scripts/Makefile.* only when relevant CONFIG is enabled kbuild: introduce hostprogs-always-y and userprogs-always-y kbuild: sort hostprogs before passing it to ifneq kbuild: move host .so build rules to scripts/gcc-plugins/Makefile kbuild: Replace HTTP links with HTTPS ones kbuild: trace functions in subdirectories of lib/ kbuild: introduce ccflags-remove-y and asflags-remove-y kbuild: do not export LDFLAGS_vmlinux kbuild: always create directories of targets powerpc/boot: add DTB to 'targets' kbuild: buildtar: add dtbs support kbuild: remove cc-option test of -ffreestanding kbuild: remove cc-option test of -fno-stack-protector Revert "kbuild: Create directory for target DTB" kbuild: run the checker after the compiler
This commit is contained in:
Linus Torvalds
commit
fc80c51fd4
@ -42,7 +42,7 @@
|
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# "select FW_LOADER" [0], in the end the simple alternative solution to this
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# problem consisted on matching semantics with newly introduced features.
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#
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# [0] http://lkml.kernel.org/r/1432241149-8762-1-git-send-email-mcgrof@do-not-panic.com
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# [0] https://lkml.kernel.org/r/1432241149-8762-1-git-send-email-mcgrof@do-not-panic.com
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mainmenu "Simple example to demo cumulative kconfig recursive dependency implication"
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@ -540,8 +540,8 @@ followed by a test macro::
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If you need to expose a compiler capability to makefiles and/or C source files,
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`CC_HAS_` is the recommended prefix for the config option::
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config CC_HAS_STACKPROTECTOR_NONE
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def_bool $(cc-option,-fno-stack-protector)
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config CC_HAS_ASM_GOTO
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def_bool $(success,$(srctree)/scripts/gcc-goto.sh $(CC))
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Build as module only
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~~~~~~~~~~~~~~~~~~~~
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@ -688,10 +688,10 @@ and real world requirements were not well understood. As it stands though
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only reverse engineering techniques have been used to deduce semantics from
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variability modeling languages such as Kconfig [3]_.
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.. [0] http://www.eng.uwaterloo.ca/~shshe/kconfig_semantics.pdf
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.. [1] http://gsd.uwaterloo.ca/sites/default/files/vm-2013-berger.pdf
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.. [2] http://gsd.uwaterloo.ca/sites/default/files/ase241-berger_0.pdf
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.. [3] http://gsd.uwaterloo.ca/sites/default/files/icse2011.pdf
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.. [0] https://www.eng.uwaterloo.ca/~shshe/kconfig_semantics.pdf
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.. [1] https://gsd.uwaterloo.ca/sites/default/files/vm-2013-berger.pdf
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.. [2] https://gsd.uwaterloo.ca/sites/default/files/ase241-berger_0.pdf
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.. [3] https://gsd.uwaterloo.ca/sites/default/files/icse2011.pdf
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Full SAT solver for Kconfig
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~~~~~~~~~~~~~~~~~~~~~~~~~~~
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@ -710,10 +710,10 @@ such efforts somehow on Kconfig. There is enough interest from mentors of
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existing projects to not only help advise how to integrate this work upstream
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but also help maintain it long term. Interested developers should visit:
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http://kernelnewbies.org/KernelProjects/kconfig-sat
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https://kernelnewbies.org/KernelProjects/kconfig-sat
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.. [4] http://www.cs.cornell.edu/~sabhar/chapters/SATSolvers-KR-Handbook.pdf
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.. [5] http://gsd.uwaterloo.ca/sites/default/files/vm-2013-berger.pdf
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.. [4] https://www.cs.cornell.edu/~sabhar/chapters/SATSolvers-KR-Handbook.pdf
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.. [5] https://gsd.uwaterloo.ca/sites/default/files/vm-2013-berger.pdf
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.. [6] https://cados.cs.fau.de
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.. [7] https://vamos.cs.fau.de
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.. [8] https://undertaker.cs.fau.de
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@ -76,7 +76,7 @@ Getting Help
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Getting LLVM
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-------------
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- http://releases.llvm.org/download.html
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- https://releases.llvm.org/download.html
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- https://github.com/llvm/llvm-project
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- https://llvm.org/docs/GettingStarted.html
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- https://llvm.org/docs/CMake.html
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@ -368,6 +368,14 @@ more details, with real examples.
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subdir-ccflags-y := -Werror
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ccflags-remove-y, asflags-remove-y
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These flags are used to remove particular flags for the compiler,
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assembler invocations.
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Example::
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ccflags-remove-$(CONFIG_MCOUNT) += -pg
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CFLAGS_$@, AFLAGS_$@
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CFLAGS_$@ and AFLAGS_$@ only apply to commands in current
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kbuild makefile.
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@ -375,6 +383,9 @@ more details, with real examples.
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$(CFLAGS_$@) specifies per-file options for $(CC). The $@
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part has a literal value which specifies the file that it is for.
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CFLAGS_$@ has the higher priority than ccflags-remove-y; CFLAGS_$@
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can re-add compiler flags that were removed by ccflags-remove-y.
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|
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Example::
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|
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# drivers/scsi/Makefile
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@ -387,6 +398,9 @@ more details, with real examples.
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$(AFLAGS_$@) is a similar feature for source files in assembly
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languages.
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AFLAGS_$@ has the higher priority than asflags-remove-y; AFLAGS_$@
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can re-add assembler flags that were removed by asflags-remove-y.
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|
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Example::
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|
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# arch/arm/kernel/Makefile
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@ -735,6 +749,10 @@ Both possibilities are described in the following.
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hostprogs := lxdialog
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always-y := $(hostprogs)
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Kbuild provides the following shorthand for this:
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hostprogs-always-y := lxdialog
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This will tell kbuild to build lxdialog even if not referenced in
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any rule.
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@ -817,7 +835,32 @@ The syntax is quite similar. The difference is to use "userprogs" instead of
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5.4 When userspace programs are actually built
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----------------------------------------------
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|
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Same as "When host programs are actually built".
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Kbuild builds userspace programs only when told to do so.
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There are two ways to do this.
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|
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(1) Add it as the prerequisite of another file
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|
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Example::
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#net/bpfilter/Makefile
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userprogs := bpfilter_umh
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$(obj)/bpfilter_umh_blob.o: $(obj)/bpfilter_umh
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$(obj)/bpfilter_umh is built before $(obj)/bpfilter_umh_blob.o
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|
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(2) Use always-y
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|
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Example::
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|
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userprogs := binderfs_example
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always-y := $(userprogs)
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|
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Kbuild provides the following shorthand for this:
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userprogs-always-y := binderfs_example
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This will tell Kbuild to build binderfs_example when it visits this
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Makefile.
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6 Kbuild clean infrastructure
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=============================
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26
Makefile
26
Makefile
@ -508,7 +508,6 @@ KBUILD_CFLAGS_MODULE := -DMODULE
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KBUILD_LDFLAGS_MODULE :=
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export KBUILD_LDS_MODULE := $(srctree)/scripts/module-common.lds
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KBUILD_LDFLAGS :=
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GCC_PLUGINS_CFLAGS :=
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CLANG_FLAGS :=
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export ARCH SRCARCH CONFIG_SHELL BASH HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE LD CC
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@ -747,9 +746,6 @@ endif
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KBUILD_CFLAGS += $(call cc-option,--param=allow-store-data-races=0)
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KBUILD_CFLAGS += $(call cc-option,-fno-allow-store-data-races)
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|
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include scripts/Makefile.kcov
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include scripts/Makefile.gcc-plugins
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ifdef CONFIG_READABLE_ASM
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# Disable optimizations that make assembler listings hard to read.
|
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# reorder blocks reorders the control in the function
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@ -764,7 +760,7 @@ ifneq ($(CONFIG_FRAME_WARN),0)
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KBUILD_CFLAGS += -Wframe-larger-than=$(CONFIG_FRAME_WARN)
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endif
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stackp-flags-$(CONFIG_CC_HAS_STACKPROTECTOR_NONE) := -fno-stack-protector
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stackp-flags-y := -fno-stack-protector
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stackp-flags-$(CONFIG_STACKPROTECTOR) := -fstack-protector
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stackp-flags-$(CONFIG_STACKPROTECTOR_STRONG) := -fstack-protector-strong
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@ -959,10 +955,19 @@ ifdef CONFIG_RETPOLINE
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KBUILD_CFLAGS += $(call cc-option,-fcf-protection=none)
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endif
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include scripts/Makefile.kasan
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include scripts/Makefile.extrawarn
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include scripts/Makefile.ubsan
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include scripts/Makefile.kcsan
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# include additional Makefiles when needed
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include-y := scripts/Makefile.extrawarn
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include-$(CONFIG_KASAN) += scripts/Makefile.kasan
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include-$(CONFIG_KCSAN) += scripts/Makefile.kcsan
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include-$(CONFIG_UBSAN) += scripts/Makefile.ubsan
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include-$(CONFIG_KCOV) += scripts/Makefile.kcov
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include-$(CONFIG_GCC_PLUGINS) += scripts/Makefile.gcc-plugins
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|
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include $(addprefix $(srctree)/, $(include-y))
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# scripts/Makefile.gcc-plugins is intentionally included last.
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# Do not add $(call cc-option,...) below this line. When you build the kernel
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# from the clean source tree, the GCC plugins do not exist at this point.
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|
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# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
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KBUILD_CPPFLAGS += $(KCPPFLAGS)
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@ -1120,7 +1125,6 @@ KBUILD_VMLINUX_OBJS += $(patsubst %/,%/built-in.a, $(drivers-y))
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export KBUILD_VMLINUX_OBJS KBUILD_VMLINUX_LIBS
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export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds
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export LDFLAGS_vmlinux
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# used by scripts/Makefile.package
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export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) LICENSES arch include scripts tools)
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@ -1152,7 +1156,7 @@ ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink)
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# Final link of vmlinux with optional arch pass after final link
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cmd_link-vmlinux = \
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$(CONFIG_SHELL) $< $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_vmlinux) ; \
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$(CONFIG_SHELL) $< "$(LD)" "$(KBUILD_LDFLAGS)" "$(LDFLAGS_vmlinux)"; \
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$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
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vmlinux: scripts/link-vmlinux.sh autoksyms_recursive $(vmlinux-deps) FORCE
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@ -481,9 +481,6 @@ config HAVE_STACKPROTECTOR
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An arch should select this symbol if:
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- it has implemented a stack canary (e.g. __stack_chk_guard)
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config CC_HAS_STACKPROTECTOR_NONE
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def_bool $(cc-option,-fno-stack-protector)
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config STACKPROTECTOR
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bool "Stack Protector buffer overflow detection"
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depends on HAVE_STACKPROTECTOR
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@ -84,9 +84,8 @@ endif
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# -fstack-protector-strong triggers protection checks in this code,
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# but it is being used too early to link to meaningful stack_chk logic.
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nossp-flags-$(CONFIG_CC_HAS_STACKPROTECTOR_NONE) := -fno-stack-protector
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$(foreach o, $(libfdt_objs) atags_to_fdt.o, \
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$(eval CFLAGS_$(o) := -I $(srctree)/scripts/dtc/libfdt $(nossp-flags-y)))
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$(eval CFLAGS_$(o) := -I $(srctree)/scripts/dtc/libfdt -fno-stack-protector))
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|
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# These were previously generated C files. When you are building the kernel
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# with O=, make sure to remove the stale files in the output tree. Otherwise,
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@ -103,13 +102,9 @@ clean-files += piggy_data lib1funcs.S ashldi3.S bswapsdi2.S hyp-stub.S
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|
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KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
|
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|
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ifeq ($(CONFIG_FUNCTION_TRACER),y)
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ORIG_CFLAGS := $(KBUILD_CFLAGS)
|
||||
KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
|
||||
endif
|
||||
|
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ccflags-y := -fpic $(call cc-option,-mno-single-pic-base,) -fno-builtin \
|
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-I$(obj) $(DISABLE_ARM_SSP_PER_TASK_PLUGIN)
|
||||
ccflags-remove-$(CONFIG_FUNCTION_TRACER) += -pg
|
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asflags-y := -DZIMAGE
|
||||
|
||||
# Supply kernel BSS size to the decompressor via a linker symbol.
|
||||
|
||||
@ -35,8 +35,7 @@ cflags-vdso := $(ccflags-vdso) \
|
||||
-O3 -g -fPIC -fno-strict-aliasing -fno-common -fno-builtin -G 0 \
|
||||
-mrelax-pic-calls $(call cc-option, -mexplicit-relocs) \
|
||||
-fno-stack-protector -fno-jump-tables -DDISABLE_BRANCH_PROFILING \
|
||||
$(call cc-option, -fno-asynchronous-unwind-tables) \
|
||||
$(call cc-option, -fno-stack-protector)
|
||||
$(call cc-option, -fno-asynchronous-unwind-tables)
|
||||
aflags-vdso := $(ccflags-vdso) \
|
||||
-D__ASSEMBLY__ -Wa,-gdwarf-2
|
||||
|
||||
|
||||
@ -366,6 +366,8 @@ initrd-y := $(patsubst zImage%, zImage.initrd%, \
|
||||
$(patsubst treeImage%, treeImage.initrd%, $(image-y)))))
|
||||
initrd-y := $(filter-out $(image-y), $(initrd-y))
|
||||
targets += $(image-y) $(initrd-y)
|
||||
targets += $(foreach x, dtbImage uImage cuImage simpleImage treeImage, \
|
||||
$(patsubst $(x).%, dts/%.dtb, $(filter $(x).%, $(image-y))))
|
||||
|
||||
$(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz
|
||||
|
||||
|
||||
@ -16,7 +16,7 @@ CFLAGS_prom_init.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
|
||||
CFLAGS_btext.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
|
||||
CFLAGS_prom.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
|
||||
|
||||
CFLAGS_prom_init.o += $(call cc-option, -fno-stack-protector)
|
||||
CFLAGS_prom_init.o += -fno-stack-protector
|
||||
CFLAGS_prom_init.o += -DDISABLE_BRANCH_PROFILING
|
||||
CFLAGS_prom_init.o += -ffreestanding
|
||||
|
||||
|
||||
@ -1,6 +1,6 @@
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
CFLAGS_bootx_init.o += -fPIC
|
||||
CFLAGS_bootx_init.o += $(call cc-option, -fno-stack-protector)
|
||||
CFLAGS_bootx_init.o += -fno-stack-protector
|
||||
|
||||
KASAN_SANITIZE_bootx_init.o := n
|
||||
|
||||
|
||||
@ -7,8 +7,7 @@ UBSAN_SANITIZE := n
|
||||
KASAN_SANITIZE := n
|
||||
|
||||
# Disable ftrace for the entire directory
|
||||
ORIG_CFLAGS := $(KBUILD_CFLAGS)
|
||||
KBUILD_CFLAGS = $(subst $(CC_FLAGS_FTRACE),,$(ORIG_CFLAGS))
|
||||
ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE)
|
||||
|
||||
ifdef CONFIG_CC_IS_CLANG
|
||||
# clang stores addresses on the stack causing the frame size to blow
|
||||
|
||||
@ -27,7 +27,7 @@ KBUILD_CFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) -m64 -O2
|
||||
KBUILD_CFLAGS_DECOMPRESSOR += -DDISABLE_BRANCH_PROFILING -D__NO_FORTIFY
|
||||
KBUILD_CFLAGS_DECOMPRESSOR += -fno-delete-null-pointer-checks -msoft-float
|
||||
KBUILD_CFLAGS_DECOMPRESSOR += -fno-asynchronous-unwind-tables
|
||||
KBUILD_CFLAGS_DECOMPRESSOR += $(call cc-option,-ffreestanding)
|
||||
KBUILD_CFLAGS_DECOMPRESSOR += -ffreestanding
|
||||
KBUILD_CFLAGS_DECOMPRESSOR += $(call cc-disable-warning, address-of-packed-member)
|
||||
KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO),-g)
|
||||
KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO_DWARF4), $(call cc-option, -gdwarf-4,))
|
||||
|
||||
@ -28,10 +28,7 @@ IMAGE_OFFSET := $(shell /bin/bash -c 'printf "0x%08x" \
|
||||
$(CONFIG_BOOT_LINK_OFFSET)]')
|
||||
endif
|
||||
|
||||
ifeq ($(CONFIG_MCOUNT),y)
|
||||
ORIG_CFLAGS := $(KBUILD_CFLAGS)
|
||||
KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
|
||||
endif
|
||||
ccflags-remove-$(CONFIG_MCOUNT) += -pg
|
||||
|
||||
LDFLAGS_vmlinux := --oformat $(ld-bfd) -Ttext $(IMAGE_OFFSET) -e startup \
|
||||
-T $(obj)/../../kernel/vmlinux.lds
|
||||
|
||||
@ -54,7 +54,7 @@ $(obj)/vdso-image-%.c: $(obj)/vdso%.so.dbg $(obj)/vdso%.so $(obj)/vdso2c FORCE
|
||||
# optimize sibling calls.
|
||||
#
|
||||
CFL := $(PROFILING) -mcmodel=medlow -fPIC -O2 -fasynchronous-unwind-tables -m64 \
|
||||
$(filter -g%,$(KBUILD_CFLAGS)) $(call cc-option, -fno-stack-protector) \
|
||||
$(filter -g%,$(KBUILD_CFLAGS)) -fno-stack-protector \
|
||||
-fno-omit-frame-pointer -foptimize-sibling-calls \
|
||||
-DDISABLE_BRANCH_PROFILING -DBUILD_VDSO
|
||||
|
||||
@ -93,7 +93,7 @@ KBUILD_CFLAGS_32 := $(filter-out -fno-pic,$(KBUILD_CFLAGS_32))
|
||||
KBUILD_CFLAGS_32 := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS_32))
|
||||
KBUILD_CFLAGS_32 := $(filter-out $(SPARC_REG_CFLAGS),$(KBUILD_CFLAGS_32))
|
||||
KBUILD_CFLAGS_32 += -m32 -msoft-float -fpic
|
||||
KBUILD_CFLAGS_32 += $(call cc-option, -fno-stack-protector)
|
||||
KBUILD_CFLAGS_32 += -fno-stack-protector
|
||||
KBUILD_CFLAGS_32 += $(call cc-option, -foptimize-sibling-calls)
|
||||
KBUILD_CFLAGS_32 += -fno-omit-frame-pointer
|
||||
KBUILD_CFLAGS_32 += -DDISABLE_BRANCH_PROFILING
|
||||
|
||||
@ -121,8 +121,7 @@ LINK-$(CONFIG_LD_SCRIPT_STATIC) += -static
|
||||
LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib $(call cc-option, -no-pie)
|
||||
|
||||
CFLAGS_NO_HARDENING := $(call cc-option, -fno-PIC,) $(call cc-option, -fno-pic,) \
|
||||
$(call cc-option, -fno-stack-protector,) \
|
||||
$(call cc-option, -fno-stack-protector-all,)
|
||||
-fno-stack-protector $(call cc-option, -fno-stack-protector-all)
|
||||
|
||||
# Options used by linker script
|
||||
export LDS_START := $(START)
|
||||
|
||||
@ -36,8 +36,8 @@ REALMODE_CFLAGS := $(M16_CFLAGS) -g -Os -DDISABLE_BRANCH_PROFILING \
|
||||
-fno-strict-aliasing -fomit-frame-pointer -fno-pic \
|
||||
-mno-mmx -mno-sse
|
||||
|
||||
REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), -ffreestanding)
|
||||
REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), -fno-stack-protector)
|
||||
REALMODE_CFLAGS += -ffreestanding
|
||||
REALMODE_CFLAGS += -fno-stack-protector
|
||||
REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), -Wno-address-of-packed-member)
|
||||
REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), $(cc_stack_align4))
|
||||
export REALMODE_CFLAGS
|
||||
|
||||
@ -35,8 +35,8 @@ cflags-$(CONFIG_X86_32) := -march=i386
|
||||
cflags-$(CONFIG_X86_64) := -mcmodel=small
|
||||
KBUILD_CFLAGS += $(cflags-y)
|
||||
KBUILD_CFLAGS += -mno-mmx -mno-sse
|
||||
KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
|
||||
KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
|
||||
KBUILD_CFLAGS += -ffreestanding
|
||||
KBUILD_CFLAGS += -fno-stack-protector
|
||||
KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
|
||||
KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
|
||||
KBUILD_CFLAGS += -Wno-pointer-sign
|
||||
|
||||
@ -82,7 +82,7 @@ $(obj)/vdso-image-%.c: $(obj)/vdso%.so.dbg $(obj)/vdso%.so $(obj)/vdso2c FORCE
|
||||
# optimize sibling calls.
|
||||
#
|
||||
CFL := $(PROFILING) -mcmodel=small -fPIC -O2 -fasynchronous-unwind-tables -m64 \
|
||||
$(filter -g%,$(KBUILD_CFLAGS)) $(call cc-option, -fno-stack-protector) \
|
||||
$(filter -g%,$(KBUILD_CFLAGS)) -fno-stack-protector \
|
||||
-fno-omit-frame-pointer -foptimize-sibling-calls \
|
||||
-DDISABLE_BRANCH_PROFILING -DBUILD_VDSO
|
||||
|
||||
@ -151,7 +151,7 @@ KBUILD_CFLAGS_32 := $(filter-out -mfentry,$(KBUILD_CFLAGS_32))
|
||||
KBUILD_CFLAGS_32 := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS_32))
|
||||
KBUILD_CFLAGS_32 := $(filter-out $(RETPOLINE_CFLAGS),$(KBUILD_CFLAGS_32))
|
||||
KBUILD_CFLAGS_32 += -m32 -msoft-float -mregparm=0 -fpic
|
||||
KBUILD_CFLAGS_32 += $(call cc-option, -fno-stack-protector)
|
||||
KBUILD_CFLAGS_32 += -fno-stack-protector
|
||||
KBUILD_CFLAGS_32 += $(call cc-option, -foptimize-sibling-calls)
|
||||
KBUILD_CFLAGS_32 += -fno-omit-frame-pointer
|
||||
KBUILD_CFLAGS_32 += -DDISABLE_BRANCH_PROFILING
|
||||
|
||||
@ -17,8 +17,7 @@ KCOV_INSTRUMENT_perf_event.o := n
|
||||
KCSAN_SANITIZE_common.o := n
|
||||
|
||||
# Make sure load_percpu_segment has no stackprotector
|
||||
nostackp := $(call cc-option, -fno-stack-protector)
|
||||
CFLAGS_common.o := $(nostackp)
|
||||
CFLAGS_common.o := -fno-stack-protector
|
||||
|
||||
obj-y := cacheinfo.o scattered.o topology.o
|
||||
obj-y += common.o
|
||||
|
||||
@ -24,7 +24,7 @@ ifdef CONFIG_FUNCTION_TRACER
|
||||
CFLAGS_REMOVE_cmdline.o = -pg
|
||||
endif
|
||||
|
||||
CFLAGS_cmdline.o := $(call cc-option, -fno-stack-protector)
|
||||
CFLAGS_cmdline.o := -fno-stack-protector
|
||||
endif
|
||||
|
||||
inat_tables_script = $(srctree)/arch/x86/tools/gen-insn-attr-x86.awk
|
||||
|
||||
@ -22,10 +22,9 @@ obj-y := init.o init_$(BITS).o fault.o ioremap.o extable.o mmap.o \
|
||||
obj-y += pat/
|
||||
|
||||
# Make sure __phys_addr has no stackprotector
|
||||
nostackp := $(call cc-option, -fno-stack-protector)
|
||||
CFLAGS_physaddr.o := $(nostackp)
|
||||
CFLAGS_setup_nx.o := $(nostackp)
|
||||
CFLAGS_mem_encrypt_identity.o := $(nostackp)
|
||||
CFLAGS_physaddr.o := -fno-stack-protector
|
||||
CFLAGS_setup_nx.o := -fno-stack-protector
|
||||
CFLAGS_mem_encrypt_identity.o := -fno-stack-protector
|
||||
|
||||
CFLAGS_fault.o := -I $(srctree)/$(src)/../include/asm/trace
|
||||
|
||||
|
||||
@ -3,8 +3,7 @@ OBJECT_FILES_NON_STANDARD_hibernate_asm_$(BITS).o := y
|
||||
|
||||
# __restore_processor_state() restores %gs after S3 resume and so should not
|
||||
# itself be stack-protected
|
||||
nostackp := $(call cc-option, -fno-stack-protector)
|
||||
CFLAGS_cpu.o := $(nostackp)
|
||||
CFLAGS_cpu.o := -fno-stack-protector
|
||||
|
||||
obj-$(CONFIG_PM_SLEEP) += cpu.o
|
||||
obj-$(CONFIG_HIBERNATION) += hibernate_$(BITS).o hibernate_asm_$(BITS).o hibernate.o
|
||||
|
||||
@ -34,7 +34,7 @@ KCOV_INSTRUMENT := n
|
||||
PURGATORY_CFLAGS_REMOVE := -mcmodel=kernel
|
||||
PURGATORY_CFLAGS := -mcmodel=large -ffreestanding -fno-zero-initialized-in-bss
|
||||
PURGATORY_CFLAGS += $(DISABLE_STACKLEAK_PLUGIN) -DDISABLE_BRANCH_PROFILING
|
||||
PURGATORY_CFLAGS += $(call cc-option,-fno-stack-protector)
|
||||
PURGATORY_CFLAGS += -fno-stack-protector
|
||||
|
||||
# Default KBUILD_CFLAGS can have -pg option set when FTRACE is enabled. That
|
||||
# in turn leaves some undefined symbols like __fentry__ in purgatory and not
|
||||
|
||||
@ -42,7 +42,7 @@ $(obj)/%.so: $(obj)/%.so.dbg FORCE
|
||||
# optimize sibling calls.
|
||||
#
|
||||
CFL := $(PROFILING) -mcmodel=small -fPIC -O2 -fasynchronous-unwind-tables -m64 \
|
||||
$(filter -g%,$(KBUILD_CFLAGS)) $(call cc-option, -fno-stack-protector) \
|
||||
$(filter -g%,$(KBUILD_CFLAGS)) -fno-stack-protector \
|
||||
-fno-omit-frame-pointer -foptimize-sibling-calls
|
||||
|
||||
$(vobjs): KBUILD_CFLAGS += $(CFL)
|
||||
|
||||
@ -9,9 +9,8 @@ CFLAGS_REMOVE_irq.o = -pg
|
||||
endif
|
||||
|
||||
# Make sure early boot has no stackprotector
|
||||
nostackp := $(call cc-option, -fno-stack-protector)
|
||||
CFLAGS_enlighten_pv.o := $(nostackp)
|
||||
CFLAGS_mmu_pv.o := $(nostackp)
|
||||
CFLAGS_enlighten_pv.o := -fno-stack-protector
|
||||
CFLAGS_mmu_pv.o := -fno-stack-protector
|
||||
|
||||
obj-y += enlighten.o
|
||||
obj-y += mmu.o
|
||||
|
||||
@ -26,7 +26,7 @@ $(obj)/Image.o: $(obj)/../vmlinux.bin $(OBJS)
|
||||
$(OBJS) $@
|
||||
|
||||
$(obj)/../Image.elf: $(obj)/Image.o $(obj)/boot.lds
|
||||
$(Q)$(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_vmlinux) \
|
||||
$(Q)$(LD) $(KBUILD_LDFLAGS) \
|
||||
-T $(obj)/boot.lds \
|
||||
--build-id=none \
|
||||
-o $@ $(obj)/Image.o
|
||||
|
||||
@ -28,8 +28,8 @@ cflags-$(CONFIG_EFI_GENERIC_STUB) += -I$(srctree)/scripts/dtc/libfdt
|
||||
KBUILD_CFLAGS := $(cflags-y) -Os -DDISABLE_BRANCH_PROFILING \
|
||||
-include $(srctree)/drivers/firmware/efi/libstub/hidden.h \
|
||||
-D__NO_FORTIFY \
|
||||
$(call cc-option,-ffreestanding) \
|
||||
$(call cc-option,-fno-stack-protector) \
|
||||
-ffreestanding \
|
||||
-fno-stack-protector \
|
||||
$(call cc-option,-fno-addrsig) \
|
||||
-D__DISABLE_EXPORTS
|
||||
|
||||
|
||||
@ -5,8 +5,7 @@ obj-y += mem-reservation.o
|
||||
obj-y += events/
|
||||
obj-y += xenbus/
|
||||
|
||||
nostackp := $(call cc-option, -fno-stack-protector)
|
||||
CFLAGS_features.o := $(nostackp)
|
||||
CFLAGS_features.o := -fno-stack-protector
|
||||
|
||||
dom0-$(CONFIG_ARM64) += arm-device.o
|
||||
dom0-$(CONFIG_PCI) += pci.o
|
||||
|
||||
@ -2,9 +2,9 @@
|
||||
|
||||
# Do not instrument the tracer itself:
|
||||
|
||||
ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE)
|
||||
|
||||
ifdef CONFIG_FUNCTION_TRACER
|
||||
ORIG_CFLAGS := $(KBUILD_CFLAGS)
|
||||
KBUILD_CFLAGS = $(subst $(CC_FLAGS_FTRACE),,$(ORIG_CFLAGS))
|
||||
|
||||
# Avoid recursion due to instrumentation.
|
||||
KCSAN_SANITIZE := n
|
||||
|
||||
@ -3,10 +3,7 @@
|
||||
# Makefile for some libs needed in the kernel.
|
||||
#
|
||||
|
||||
ifdef CONFIG_FUNCTION_TRACER
|
||||
ORIG_CFLAGS := $(KBUILD_CFLAGS)
|
||||
KBUILD_CFLAGS = $(subst $(CC_FLAGS_FTRACE),,$(ORIG_CFLAGS))
|
||||
endif
|
||||
ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE)
|
||||
|
||||
# These files are disabled because they produce lots of non-interesting and/or
|
||||
# flaky coverage that is not a function of syscall inputs. For example,
|
||||
@ -22,7 +19,7 @@ KCOV_INSTRUMENT_fault-inject.o := n
|
||||
ifdef CONFIG_AMD_MEM_ENCRYPT
|
||||
KASAN_SANITIZE_string.o := n
|
||||
|
||||
CFLAGS_string.o := $(call cc-option, -fno-stack-protector)
|
||||
CFLAGS_string.o := -fno-stack-protector
|
||||
endif
|
||||
|
||||
# Used by KCSAN while enabled, avoid recursion.
|
||||
@ -324,7 +321,7 @@ endif
|
||||
UBSAN_SANITIZE_ubsan.o := n
|
||||
KASAN_SANITIZE_ubsan.o := n
|
||||
KCSAN_SANITIZE_ubsan.o := n
|
||||
CFLAGS_ubsan.o := $(call cc-option, -fno-stack-protector) $(DISABLE_STACKLEAK_PLUGIN)
|
||||
CFLAGS_ubsan.o := -fno-stack-protector $(DISABLE_STACKLEAK_PLUGIN)
|
||||
|
||||
obj-$(CONFIG_SBITMAP) += sbitmap.o
|
||||
|
||||
|
||||
@ -12,7 +12,3 @@ obj-$(CONFIG_TEST_LIVEPATCH) += test_klp_atomic_replace.o \
|
||||
test_klp_state.o \
|
||||
test_klp_state2.o \
|
||||
test_klp_state3.o
|
||||
|
||||
# Target modules to be livepatched require CC_FLAGS_FTRACE
|
||||
CFLAGS_test_klp_callbacks_busy.o += $(CC_FLAGS_FTRACE)
|
||||
CFLAGS_test_klp_callbacks_mod.o += $(CC_FLAGS_FTRACE)
|
||||
|
||||
@ -16,7 +16,7 @@ CFLAGS_REMOVE_tags_report.o = $(CC_FLAGS_FTRACE)
|
||||
# Function splitter causes unnecessary splits in __asan_load1/__asan_store1
|
||||
# see: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63533
|
||||
CC_FLAGS_KASAN_RUNTIME := $(call cc-option, -fno-conserve-stack)
|
||||
CC_FLAGS_KASAN_RUNTIME += $(call cc-option, -fno-stack-protector)
|
||||
CC_FLAGS_KASAN_RUNTIME += -fno-stack-protector
|
||||
# Disable branch tracing to avoid recursion.
|
||||
CC_FLAGS_KASAN_RUNTIME += -DDISABLE_BRANCH_PROFILING
|
||||
|
||||
|
||||
@ -1,3 +1,2 @@
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
userprogs := cfag12864b-example
|
||||
always-y := $(userprogs)
|
||||
userprogs-always-y += cfag12864b-example
|
||||
|
||||
@ -1,5 +1,4 @@
|
||||
# SPDX-License-Identifier: GPL-2.0-only
|
||||
userprogs := binderfs_example
|
||||
always-y := $(userprogs)
|
||||
userprogs-always-y += binderfs_example
|
||||
|
||||
userccflags += -I usr/include
|
||||
|
||||
@ -1,7 +1,6 @@
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
obj-$(CONFIG_SAMPLE_CONNECTOR) += cn_test.o
|
||||
|
||||
userprogs := ucon
|
||||
always-$(CONFIG_CC_CAN_LINK) := $(userprogs)
|
||||
userprogs-always-$(CONFIG_CC_CAN_LINK) += ucon
|
||||
|
||||
userccflags += -I usr/include
|
||||
|
||||
@ -1,5 +1,4 @@
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
userprogs := hid-example
|
||||
always-y := $(userprogs)
|
||||
userprogs-always-y += hid-example
|
||||
|
||||
userccflags += -I usr/include
|
||||
|
||||
@ -1,7 +1,5 @@
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
# Copyright (c) 2012-2019, Intel Corporation. All rights reserved.
|
||||
|
||||
userprogs := mei-amt-version
|
||||
always-y := $(userprogs)
|
||||
userprogs-always-y += mei-amt-version
|
||||
|
||||
userccflags += -I usr/include
|
||||
|
||||
@ -1,6 +1,4 @@
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
|
||||
usertprogs := pidfd-metadata
|
||||
always-y := $(userprogs)
|
||||
usertprogs-always-y += pidfd-metadata
|
||||
|
||||
userccflags += -I usr/include
|
||||
|
||||
@ -1,8 +1,6 @@
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
userprogs := bpf-fancy dropper bpf-direct user-trap
|
||||
userprogs-always-y += bpf-fancy dropper bpf-direct user-trap
|
||||
|
||||
bpf-fancy-objs := bpf-fancy.o bpf-helper.o
|
||||
|
||||
userccflags += -I usr/include
|
||||
|
||||
always-y := $(userprogs)
|
||||
|
||||
@ -1,5 +1,4 @@
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
userprogs := hpet_example
|
||||
always-y := $(userprogs)
|
||||
userprogs-always-y += hpet_example
|
||||
|
||||
userccflags += -I usr/include
|
||||
|
||||
@ -1,5 +1,4 @@
|
||||
# SPDX-License-Identifier: GPL-2.0-only
|
||||
userprogs := uhid-example
|
||||
always-y := $(userprogs)
|
||||
userprogs-always-y += uhid-example
|
||||
|
||||
userccflags += -I usr/include
|
||||
|
||||
@ -1,5 +1,4 @@
|
||||
# SPDX-License-Identifier: GPL-2.0-only
|
||||
userprogs := test-fsmount test-statx
|
||||
always-y := $(userprogs)
|
||||
userprogs-always-y += test-fsmount test-statx
|
||||
|
||||
userccflags += -I usr/include
|
||||
|
||||
@ -1,5 +1,4 @@
|
||||
# SPDX-License-Identifier: GPL-2.0-only
|
||||
userprogs := watch_test
|
||||
always-y := $(userprogs)
|
||||
userprogs-always-y += watch_test
|
||||
|
||||
userccflags += -I usr/include
|
||||
|
||||
@ -1,3 +1,2 @@
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
userprogs := watchdog-simple
|
||||
always-y := $(userprogs)
|
||||
userprogs-always-y += watchdog-simple
|
||||
|
||||
@ -119,25 +119,21 @@ as-instr = $(call try-run,\
|
||||
__cc-option = $(call try-run,\
|
||||
$(1) -Werror $(2) $(3) -c -x c /dev/null -o "$$TMP",$(3),$(4))
|
||||
|
||||
# Do not attempt to build with gcc plugins during cc-option tests.
|
||||
# (And this uses delayed resolution so the flags will be up to date.)
|
||||
CC_OPTION_CFLAGS = $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS))
|
||||
|
||||
# cc-option
|
||||
# Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586)
|
||||
|
||||
cc-option = $(call __cc-option, $(CC),\
|
||||
$(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS),$(1),$(2))
|
||||
$(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS),$(1),$(2))
|
||||
|
||||
# cc-option-yn
|
||||
# Usage: flag := $(call cc-option-yn,-march=winchip-c6)
|
||||
cc-option-yn = $(call try-run,\
|
||||
$(CC) -Werror $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",y,n)
|
||||
$(CC) -Werror $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",y,n)
|
||||
|
||||
# cc-disable-warning
|
||||
# Usage: cflags-y += $(call cc-disable-warning,unused-but-set-variable)
|
||||
cc-disable-warning = $(call try-run,\
|
||||
$(CC) -Werror $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1)))
|
||||
$(CC) -Werror $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1)))
|
||||
|
||||
# cc-ifversion
|
||||
# Usage: EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1)
|
||||
|
||||
@ -3,14 +3,14 @@
|
||||
# scripts contains sources for various helper programs used throughout
|
||||
# the kernel for the build process.
|
||||
|
||||
always-$(CONFIG_BUILD_BIN2C) += bin2c
|
||||
always-$(CONFIG_KALLSYMS) += kallsyms
|
||||
always-$(BUILD_C_RECORDMCOUNT) += recordmcount
|
||||
always-$(CONFIG_BUILDTIME_TABLE_SORT) += sorttable
|
||||
always-$(CONFIG_ASN1) += asn1_compiler
|
||||
always-$(CONFIG_MODULE_SIG_FORMAT) += sign-file
|
||||
always-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += extract-cert
|
||||
always-$(CONFIG_SYSTEM_EXTRA_CERTIFICATE) += insert-sys-cert
|
||||
hostprogs-always-$(CONFIG_BUILD_BIN2C) += bin2c
|
||||
hostprogs-always-$(CONFIG_KALLSYMS) += kallsyms
|
||||
hostprogs-always-$(BUILD_C_RECORDMCOUNT) += recordmcount
|
||||
hostprogs-always-$(CONFIG_BUILDTIME_TABLE_SORT) += sorttable
|
||||
hostprogs-always-$(CONFIG_ASN1) += asn1_compiler
|
||||
hostprogs-always-$(CONFIG_MODULE_SIG_FORMAT) += sign-file
|
||||
hostprogs-always-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += extract-cert
|
||||
hostprogs-always-$(CONFIG_SYSTEM_EXTRA_CERTIFICATE) += insert-sys-cert
|
||||
|
||||
HOSTCFLAGS_sorttable.o = -I$(srctree)/tools/include
|
||||
HOSTCFLAGS_asn1_compiler.o = -I$(srctree)/include
|
||||
@ -26,8 +26,6 @@ HOSTCFLAGS_sorttable.o += -DUNWINDER_ORC_ENABLED
|
||||
HOSTLDLIBS_sorttable = -lpthread
|
||||
endif
|
||||
|
||||
hostprogs := $(always-y) $(always-m)
|
||||
|
||||
# The following programs are only built on demand
|
||||
hostprogs += unifdef
|
||||
|
||||
|
||||
@ -45,12 +45,15 @@ include $(kbuild-file)
|
||||
|
||||
include scripts/Makefile.lib
|
||||
|
||||
# Do not include host rules unless needed
|
||||
ifneq ($(hostprogs)$(hostcxxlibs-y)$(hostcxxlibs-m),)
|
||||
# Do not include hostprogs rules unless needed.
|
||||
# $(sort ...) is used here to remove duplicated words and excessive spaces.
|
||||
hostprogs := $(sort $(hostprogs))
|
||||
ifneq ($(hostprogs),)
|
||||
include scripts/Makefile.host
|
||||
endif
|
||||
|
||||
# Do not include userprogs rules unless needed.
|
||||
# $(sort ...) is used here to remove duplicated words and excessive spaces.
|
||||
userprogs := $(sort $(userprogs))
|
||||
ifneq ($(userprogs),)
|
||||
include scripts/Makefile.userprogs
|
||||
@ -252,9 +255,9 @@ cmd_gen_ksymdeps = \
|
||||
endif
|
||||
|
||||
define rule_cc_o_c
|
||||
$(call cmd,checksrc)
|
||||
$(call cmd_and_fixdep,cc_o_c)
|
||||
$(call cmd,gen_ksymdeps)
|
||||
$(call cmd,checksrc)
|
||||
$(call cmd,checkdoc)
|
||||
$(call cmd,objtool)
|
||||
$(call cmd,modversions_c)
|
||||
@ -277,8 +280,8 @@ endif
|
||||
|
||||
# Built-in and composite module parts
|
||||
$(obj)/%.o: $(src)/%.c $(recordmcount_source) $(objtool_dep) FORCE
|
||||
$(call cmd,force_checksrc)
|
||||
$(call if_changed_rule,cc_o_c)
|
||||
$(call cmd,force_checksrc)
|
||||
|
||||
cmd_mod = { \
|
||||
echo $(if $($*-objs)$($*-y)$($*-m), $(addprefix $(obj)/, $($*-objs) $($*-y) $($*-m)), $(@:.mod=.o)); \
|
||||
@ -515,15 +518,13 @@ existing-targets := $(wildcard $(sort $(targets)))
|
||||
|
||||
-include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd)
|
||||
|
||||
ifdef building_out_of_srctree
|
||||
# Create directories for object files if they do not exist
|
||||
obj-dirs := $(sort $(obj) $(patsubst %/,%, $(dir $(targets))))
|
||||
obj-dirs := $(sort $(patsubst %/,%, $(dir $(targets))))
|
||||
# If targets exist, their directories apparently exist. Skip mkdir.
|
||||
existing-dirs := $(sort $(patsubst %/,%, $(dir $(existing-targets))))
|
||||
obj-dirs := $(strip $(filter-out $(existing-dirs), $(obj-dirs)))
|
||||
ifneq ($(obj-dirs),)
|
||||
$(shell mkdir -p $(obj-dirs))
|
||||
endif
|
||||
endif
|
||||
|
||||
.PHONY: $(PHONY)
|
||||
|
||||
@ -27,10 +27,15 @@ subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn))
|
||||
# build a list of files to remove, usually relative to the current
|
||||
# directory
|
||||
|
||||
__clean-files := $(extra-y) $(extra-m) $(extra-) \
|
||||
$(always) $(always-y) $(always-m) $(always-) $(targets) $(clean-files) \
|
||||
$(hostprogs) $(hostprogs-y) $(hostprogs-m) $(hostprogs-) $(userprogs) \
|
||||
$(hostcxxlibs-y) $(hostcxxlibs-m)
|
||||
__clean-files := \
|
||||
$(clean-files) $(targets) $(hostprogs) $(userprogs) \
|
||||
$(extra-y) $(extra-m) $(extra-) \
|
||||
$(always-y) $(always-m) $(always-) \
|
||||
$(hostprogs-always-y) $(hostprogs-always-m) $(hostprogs-always-) \
|
||||
$(userprogs-always-y) $(userprogs-always-m) $(userprogs-always-)
|
||||
|
||||
# deprecated
|
||||
__clean-files += $(always) $(hostprogs-y) $(hostprogs-m) $(hostprogs-)
|
||||
|
||||
__clean-files := $(filter-out $(no-clean-files), $(__clean-files))
|
||||
|
||||
|
||||
@ -38,39 +38,31 @@ $(obj)/%.tab.c $(obj)/%.tab.h: $(src)/%.y FORCE
|
||||
# Will compile qconf as a C++ program, and menu as a C program.
|
||||
# They are linked as C++ code to the executable qconf
|
||||
|
||||
__hostprogs := $(sort $(hostprogs))
|
||||
host-cxxshlib := $(sort $(hostcxxlibs-y) $(hostcxxlibs-m))
|
||||
|
||||
# C code
|
||||
# Executables compiled from a single .c file
|
||||
host-csingle := $(foreach m,$(__hostprogs), \
|
||||
host-csingle := $(foreach m,$(hostprogs), \
|
||||
$(if $($(m)-objs)$($(m)-cxxobjs),,$(m)))
|
||||
|
||||
# C executables linked based on several .o files
|
||||
host-cmulti := $(foreach m,$(__hostprogs),\
|
||||
host-cmulti := $(foreach m,$(hostprogs),\
|
||||
$(if $($(m)-cxxobjs),,$(if $($(m)-objs),$(m))))
|
||||
|
||||
# Object (.o) files compiled from .c files
|
||||
host-cobjs := $(sort $(foreach m,$(__hostprogs),$($(m)-objs)))
|
||||
host-cobjs := $(sort $(foreach m,$(hostprogs),$($(m)-objs)))
|
||||
|
||||
# C++ code
|
||||
# C++ executables compiled from at least one .cc file
|
||||
# and zero or more .c files
|
||||
host-cxxmulti := $(foreach m,$(__hostprogs),$(if $($(m)-cxxobjs),$(m)))
|
||||
host-cxxmulti := $(foreach m,$(hostprogs),$(if $($(m)-cxxobjs),$(m)))
|
||||
|
||||
# C++ Object (.o) files compiled from .cc files
|
||||
host-cxxobjs := $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs)))
|
||||
|
||||
# Object (.o) files used by the shared libaries
|
||||
host-cxxshobjs := $(sort $(foreach m,$(host-cxxshlib),$($(m:.so=-objs))))
|
||||
|
||||
host-csingle := $(addprefix $(obj)/,$(host-csingle))
|
||||
host-cmulti := $(addprefix $(obj)/,$(host-cmulti))
|
||||
host-cobjs := $(addprefix $(obj)/,$(host-cobjs))
|
||||
host-cxxmulti := $(addprefix $(obj)/,$(host-cxxmulti))
|
||||
host-cxxobjs := $(addprefix $(obj)/,$(host-cxxobjs))
|
||||
host-cxxshlib := $(addprefix $(obj)/,$(host-cxxshlib))
|
||||
host-cxxshobjs := $(addprefix $(obj)/,$(host-cxxshobjs))
|
||||
|
||||
#####
|
||||
# Handle options to gcc. Support building with separate output directory
|
||||
@ -136,25 +128,5 @@ quiet_cmd_host-cxxobjs = HOSTCXX $@
|
||||
$(host-cxxobjs): $(obj)/%.o: $(src)/%.cc FORCE
|
||||
$(call if_changed_dep,host-cxxobjs)
|
||||
|
||||
# Compile .c file, create position independent .o file
|
||||
# Note that plugin capable gcc versions can be either C or C++ based
|
||||
# therefore plugin source files have to be compilable in both C and C++ mode.
|
||||
# This is why a C++ compiler is invoked on a .c file.
|
||||
# host-cxxshobjs -> .o
|
||||
quiet_cmd_host-cxxshobjs = HOSTCXX -fPIC $@
|
||||
cmd_host-cxxshobjs = $(HOSTCXX) $(hostcxx_flags) -fPIC -c -o $@ $<
|
||||
$(host-cxxshobjs): $(obj)/%.o: $(src)/%.c FORCE
|
||||
$(call if_changed_dep,host-cxxshobjs)
|
||||
|
||||
# Link a shared library, based on position independent .o files
|
||||
# *.o -> .so shared library (host-cxxshlib)
|
||||
quiet_cmd_host-cxxshlib = HOSTLLD -shared $@
|
||||
cmd_host-cxxshlib = $(HOSTCXX) $(KBUILD_HOSTLDFLAGS) -shared -o $@ \
|
||||
$(addprefix $(obj)/, $($(target-stem)-objs)) \
|
||||
$(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(target-stem).so)
|
||||
$(host-cxxshlib): FORCE
|
||||
$(call if_changed,host-cxxshlib)
|
||||
$(call multi_depend, $(host-cxxshlib), .so, -objs)
|
||||
|
||||
targets += $(host-csingle) $(host-cmulti) $(host-cobjs)\
|
||||
$(host-cxxmulti) $(host-cxxobjs) $(host-cxxshlib) $(host-cxxshobjs)
|
||||
targets += $(host-csingle) $(host-cmulti) $(host-cobjs) \
|
||||
$(host-cxxmulti) $(host-cxxobjs)
|
||||
|
||||
@ -1,10 +1,6 @@
|
||||
# SPDX-License-Identifier: GPL-2.0-only
|
||||
ifdef CONFIG_KCOV
|
||||
|
||||
kcov-flags-$(CONFIG_CC_HAS_SANCOV_TRACE_PC) += -fsanitize-coverage=trace-pc
|
||||
kcov-flags-$(CONFIG_KCOV_ENABLE_COMPARISONS) += -fsanitize-coverage=trace-cmp
|
||||
kcov-flags-$(CONFIG_GCC_PLUGIN_SANCOV) += -fplugin=$(objtree)/scripts/gcc-plugins/sancov_plugin.so
|
||||
|
||||
export CFLAGS_KCOV := $(kcov-flags-y)
|
||||
|
||||
endif
|
||||
|
||||
@ -1,6 +1,4 @@
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
ifdef CONFIG_KCSAN
|
||||
|
||||
# GCC and Clang accept backend options differently. Do not wrap in cc-option,
|
||||
# because Clang accepts "--param" even if it is unused.
|
||||
ifdef CONFIG_CC_IS_CLANG
|
||||
@ -15,5 +13,3 @@ CFLAGS_KCSAN := -fsanitize=thread \
|
||||
$(call cc-option,$(call cc-param,tsan-instrument-func-entry-exit=0) -fno-optimize-sibling-calls) \
|
||||
$(call cc-option,$(call cc-param,tsan-instrument-read-before-write=1)) \
|
||||
$(call cc-param,tsan-distinguish-volatile=1)
|
||||
|
||||
endif # CONFIG_KCSAN
|
||||
|
||||
@ -68,6 +68,17 @@ real-obj-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))
|
||||
|
||||
always-y += $(always-m)
|
||||
|
||||
# hostprogs-always-y += foo
|
||||
# ... is a shorthand for
|
||||
# hostprogs += foo
|
||||
# always-y += foo
|
||||
hostprogs += $(hostprogs-always-y) $(hostprogs-always-m)
|
||||
always-y += $(hostprogs-always-y) $(hostprogs-always-m)
|
||||
|
||||
# userprogs-always-y is likewise.
|
||||
userprogs += $(userprogs-always-y) $(userprogs-always-m)
|
||||
always-y += $(userprogs-always-y) $(userprogs-always-m)
|
||||
|
||||
# DTB
|
||||
# If CONFIG_OF_ALL_DTBS is enabled, all DT blobs are built
|
||||
extra-y += $(dtb-y)
|
||||
@ -111,12 +122,14 @@ basename_flags = -DKBUILD_BASENAME=$(call name-fix,$(basetarget))
|
||||
modname_flags = -DKBUILD_MODNAME=$(call name-fix,$(modname))
|
||||
modfile_flags = -DKBUILD_MODFILE=$(call stringify,$(modfile))
|
||||
|
||||
orig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) \
|
||||
$(ccflags-y) $(CFLAGS_$(target-stem).o)
|
||||
_c_flags = $(filter-out $(CFLAGS_REMOVE_$(target-stem).o), $(orig_c_flags))
|
||||
orig_a_flags = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) \
|
||||
$(asflags-y) $(AFLAGS_$(target-stem).o)
|
||||
_a_flags = $(filter-out $(AFLAGS_REMOVE_$(target-stem).o), $(orig_a_flags))
|
||||
_c_flags = $(filter-out $(CFLAGS_REMOVE_$(target-stem).o), \
|
||||
$(filter-out $(ccflags-remove-y), \
|
||||
$(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(ccflags-y)) \
|
||||
$(CFLAGS_$(target-stem).o))
|
||||
_a_flags = $(filter-out $(AFLAGS_REMOVE_$(target-stem).o), \
|
||||
$(filter-out $(asflags-remove-y), \
|
||||
$(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(asflags-y)) \
|
||||
$(AFLAGS_$(target-stem).o))
|
||||
_cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(target-stem).lds)
|
||||
|
||||
#
|
||||
@ -303,8 +316,7 @@ $(obj)/%.dtb.S: $(obj)/%.dtb FORCE
|
||||
$(call if_changed,dt_S_dtb)
|
||||
|
||||
quiet_cmd_dtc = DTC $@
|
||||
cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
|
||||
$(HOSTCC) -E $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
|
||||
cmd_dtc = $(HOSTCC) -E $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
|
||||
$(DTC) -O $(patsubst .%,%,$(suffix $@)) -o $@ -b 0 \
|
||||
$(addprefix -i,$(dir $<) $(DTC_INCLUDE)) $(DTC_FLAGS) \
|
||||
-d $(depfile).dtc.tmp $(dtc-tmp) ; \
|
||||
|
||||
@ -1,6 +1,4 @@
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
ifdef CONFIG_UBSAN
|
||||
|
||||
ifdef CONFIG_UBSAN_ALIGNMENT
|
||||
CFLAGS_UBSAN += $(call cc-option, -fsanitize=alignment)
|
||||
endif
|
||||
@ -26,4 +24,3 @@ endif
|
||||
# -fsanitize=* options makes GCC less smart than usual and
|
||||
# increase number of 'maybe-uninitialized false-positives
|
||||
CFLAGS_UBSAN += $(call cc-option, -Wno-maybe-uninitialized)
|
||||
endif
|
||||
|
||||
@ -2,5 +2,4 @@
|
||||
#
|
||||
# fixdep: used to generate dependency information during build process
|
||||
|
||||
hostprogs := fixdep
|
||||
always-y := $(hostprogs)
|
||||
hostprogs-always-y += fixdep
|
||||
|
||||
@ -1,9 +1,8 @@
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
# scripts/dtc makefile
|
||||
|
||||
hostprogs := dtc
|
||||
always-$(CONFIG_DTC) += $(hostprogs)
|
||||
always-$(CHECK_DT_BINDING) += $(hostprogs)
|
||||
hostprogs-always-$(CONFIG_DTC) += dtc
|
||||
hostprogs-always-$(CHECK_DT_BINDING) += dtc
|
||||
|
||||
dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o \
|
||||
srcpos.o checks.o util.o
|
||||
|
||||
@ -1,22 +1,61 @@
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
GCC_PLUGINS_DIR := $(shell $(CC) -print-file-name=plugin)
|
||||
|
||||
HOST_EXTRACXXFLAGS += -I$(GCC_PLUGINS_DIR)/include -I$(src) -std=gnu++98 -fno-rtti
|
||||
HOST_EXTRACXXFLAGS += -fno-exceptions -fasynchronous-unwind-tables -ggdb
|
||||
HOST_EXTRACXXFLAGS += -Wno-narrowing -Wno-unused-variable -Wno-c++11-compat
|
||||
HOST_EXTRACXXFLAGS += -Wno-format-diag
|
||||
|
||||
$(obj)/randomize_layout_plugin.o: $(objtree)/$(obj)/randomize_layout_seed.h
|
||||
$(obj)/randomize_layout_plugin.so: $(objtree)/$(obj)/randomize_layout_seed.h
|
||||
quiet_cmd_create_randomize_layout_seed = GENSEED $@
|
||||
cmd_create_randomize_layout_seed = \
|
||||
$(CONFIG_SHELL) $(srctree)/$(src)/gen-random-seed.sh $@ $(objtree)/include/generated/randomize_layout_hash.h
|
||||
$(objtree)/$(obj)/randomize_layout_seed.h: FORCE
|
||||
$(call if_changed,create_randomize_layout_seed)
|
||||
targets = randomize_layout_seed.h randomize_layout_hash.h
|
||||
targets += randomize_layout_seed.h randomize_layout_hash.h
|
||||
|
||||
hostcxxlibs-y := $(GCC_PLUGIN)
|
||||
always-y := $(hostcxxlibs-y)
|
||||
# Build rules for plugins
|
||||
#
|
||||
# No extra code is needed for single-file plugins.
|
||||
# For multi-file plugins, use *-objs syntax to list the objects.
|
||||
#
|
||||
# If the plugin foo.so is compiled from foo.c and foo2.c, you can do:
|
||||
#
|
||||
# foo-objs := foo.o foo2.o
|
||||
|
||||
$(foreach p,$(hostcxxlibs-y:%.so=%),$(eval $(p)-objs := $(p).o))
|
||||
always-y += $(GCC_PLUGIN)
|
||||
|
||||
GCC_PLUGINS_DIR = $(shell $(CC) -print-file-name=plugin)
|
||||
|
||||
plugin_cxxflags = -Wp,-MMD,$(depfile) $(KBUILD_HOSTCXXFLAGS) -fPIC \
|
||||
-I $(GCC_PLUGINS_DIR)/include -I $(obj) -std=gnu++98 \
|
||||
-fno-rtti -fno-exceptions -fasynchronous-unwind-tables \
|
||||
-ggdb -Wno-narrowing -Wno-unused-variable -Wno-c++11-compat \
|
||||
-Wno-format-diag
|
||||
|
||||
plugin_ldflags = -shared
|
||||
|
||||
plugin-single := $(foreach m, $(GCC_PLUGIN), $(if $($(m:%.so=%-objs)),,$(m)))
|
||||
plugin-multi := $(filter-out $(plugin-single), $(GCC_PLUGIN))
|
||||
plugin-objs := $(sort $(foreach m, $(plugin-multi), $($(m:%.so=%-objs))))
|
||||
|
||||
targets += $(plugin-single) $(plugin-multi) $(plugin-objs)
|
||||
clean-files += *.so
|
||||
|
||||
plugin-single := $(addprefix $(obj)/, $(plugin-single))
|
||||
plugin-multi := $(addprefix $(obj)/, $(plugin-multi))
|
||||
plugin-objs := $(addprefix $(obj)/, $(plugin-objs))
|
||||
|
||||
quiet_cmd_plugin_cxx_so_c = HOSTCXX $@
|
||||
cmd_plugin_cxx_so_c = $(HOSTCXX) $(plugin_cxxflags) $(plugin_ldflags) -o $@ $<
|
||||
|
||||
$(plugin-single): $(obj)/%.so: $(src)/%.c FORCE
|
||||
$(call if_changed_dep,plugin_cxx_so_c)
|
||||
|
||||
quiet_cmd_plugin_ld_so_o = HOSTLD $@
|
||||
cmd_plugin_ld_so_o = $(HOSTCXX) $(plugin_ldflags) -o $@ \
|
||||
$(addprefix $(obj)/, $($(target-stem)-objs))
|
||||
|
||||
$(plugin-multi): FORCE
|
||||
$(call if_changed,plugin_ld_so_o)
|
||||
$(foreach m, $(notdir $(plugin-multi)), $(eval $(obj)/$m: $(addprefix $(obj)/, $($(m:%.so=%-objs)))))
|
||||
|
||||
quiet_cmd_plugin_cxx_o_c = HOSTCXX $@
|
||||
cmd_plugin_cxx_o_c = $(HOSTCXX) $(plugin_cxxflags) -c -o $@ $<
|
||||
|
||||
$(plugin-objs): $(obj)/%.o: $(src)/%.c FORCE
|
||||
$(call if_changed_dep,plugin_cxx_o_c)
|
||||
|
||||
@ -1,7 +1,6 @@
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
|
||||
hostprogs := genksyms
|
||||
always-y := $(hostprogs)
|
||||
hostprogs-always-y += genksyms
|
||||
|
||||
genksyms-objs := genksyms.o parse.tab.o lex.lex.o
|
||||
|
||||
|
||||
@ -30,6 +30,10 @@
|
||||
# Error out on error
|
||||
set -e
|
||||
|
||||
LD="$1"
|
||||
KBUILD_LDFLAGS="$2"
|
||||
LDFLAGS_vmlinux="$3"
|
||||
|
||||
# Nice output in kbuild format
|
||||
# Will be supressed by "make -s"
|
||||
info()
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
OBJECT_FILES_NON_STANDARD := y
|
||||
|
||||
hostprogs := modpost mk_elfconfig
|
||||
always-y := $(hostprogs) empty.o
|
||||
hostprogs-always-y += modpost mk_elfconfig
|
||||
always-y += empty.o
|
||||
|
||||
modpost-objs := modpost.o file2alias.o sumversion.o
|
||||
|
||||
|
||||
@ -53,6 +53,18 @@ rm -rf -- "${tmpdir}"
|
||||
mkdir -p -- "${tmpdir}/boot"
|
||||
dirs=boot
|
||||
|
||||
|
||||
#
|
||||
# Try to install dtbs
|
||||
#
|
||||
if grep -q '^CONFIG_OF_EARLY_FLATTREE=y' include/config/auto.conf; then
|
||||
# Only some architectures with OF support have this target
|
||||
if [ -d "${srctree}/arch/${SRCARCH}/boot/dts" ]; then
|
||||
$MAKE ARCH="${ARCH}" -f ${srctree}/Makefile INSTALL_DTBS_PATH="${tmpdir}/boot/dtbs/${KERNELRELEASE}" dtbs_install
|
||||
fi
|
||||
fi
|
||||
|
||||
|
||||
#
|
||||
# Try to install modules
|
||||
#
|
||||
|
||||
@ -175,7 +175,7 @@ Section: kernel
|
||||
Priority: optional
|
||||
Maintainer: $maintainer
|
||||
Build-Depends: bc, rsync, kmod, cpio, bison, flex | flex:native $extra_build_depends
|
||||
Homepage: http://www.kernel.org/
|
||||
Homepage: https://www.kernel.org/
|
||||
|
||||
Package: $packagename
|
||||
Architecture: $debarch
|
||||
|
||||
@ -46,7 +46,7 @@ sed -e '/^DEL/d' -e 's/^\t*//' <<EOF
|
||||
License: GPL
|
||||
Group: System Environment/Kernel
|
||||
Vendor: The Linux Community
|
||||
URL: http://www.kernel.org
|
||||
URL: https://www.kernel.org
|
||||
$S Source: kernel-$__KERNELRELEASE.tar.gz
|
||||
Provides: $PROVIDES
|
||||
%define __spec_install_post /usr/lib/rpm/brp-compress || :
|
||||
|
||||
@ -1,7 +1,5 @@
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
hostprogs := genheaders
|
||||
hostprogs-always-y += genheaders
|
||||
HOST_EXTRACFLAGS += \
|
||||
-I$(srctree)/include/uapi -I$(srctree)/include \
|
||||
-I$(srctree)/security/selinux/include
|
||||
|
||||
always-y := $(hostprogs)
|
||||
|
||||
@ -1,8 +1,7 @@
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
hostprogs := mdp
|
||||
hostprogs-always-y += mdp
|
||||
HOST_EXTRACFLAGS += \
|
||||
-I$(srctree)/include/uapi -I$(srctree)/include \
|
||||
-I$(srctree)/security/selinux/include -I$(objtree)/include
|
||||
|
||||
always-y := $(hostprogs)
|
||||
clean-files := policy.* file_contexts
|
||||
|
||||
Loading…
Reference in New Issue
Block a user