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2019-08-01Switch AARCH32/AARCH64 to __aarch64__Julius Werner
NOTE: AARCH32/AARCH64 macros are now deprecated in favor of __aarch64__. All common C compilers pre-define the same macros to signal which architecture the code is being compiled for: __arm__ for AArch32 (or earlier versions) and __aarch64__ for AArch64. There's no need for TF-A to define its own custom macros for this. In order to unify code with the export headers (which use __aarch64__ to avoid another dependency), let's deprecate the AARCH32 and AARCH64 macros and switch the code base over to the pre-defined standard macro. (Since it is somewhat unintuitive that __arm__ only means AArch32, let's standardize on only using __aarch64__.) Change-Id: Ic77de4b052297d77f38fc95f95f65a8ee70cf200 Signed-off-by: Julius Werner <jwerner@chromium.org>
2019-08-01Replace __ASSEMBLY__ with compiler-builtin __ASSEMBLER__Julius Werner
NOTE: __ASSEMBLY__ macro is now deprecated in favor of __ASSEMBLER__. All common C compilers predefine a macro called __ASSEMBLER__ when preprocessing a .S file. There is no reason for TF-A to define it's own __ASSEMBLY__ macro for this purpose instead. To unify code with the export headers (which use __ASSEMBLER__ to avoid one extra dependency), let's deprecate __ASSEMBLY__ and switch the code base over to the predefined standard. Change-Id: Id7d0ec8cf330195da80499c68562b65cb5ab7417 Signed-off-by: Julius Werner <jwerner@chromium.org>
2019-05-02build_macros: Add mechanism to prevent bin generation.Christoph Müllner
On certain platforms it does not make sense to generate TF-A binary images. For example a platform could make use of serveral memory areas, which are non-continuous and the resulting binary therefore would suffer from the padding-bytes. Typically these platforms use the ELF image. This patch introduces a variable DISABLE_BIN_GENERATION, which can be set to '1' in the platform makefile to prevent the binary generation. Signed-off-by: Christoph Müllner <christophm30@gmail.com> Change-Id: I62948e88bab685bb055fe6167d9660d14e604462
2019-02-27Tegra: Support for scatterfile for the BL31 imageVarun Wadekar
This patch provides support for using the scatterfile format as the linker script with the 'armlink' linker for Tegra platforms. In order to enable the scatterfile usage the following changes have been made: * provide mapping for ld.S symbols in bl_common.h * include bl_common.h from all the affected files * update the makefile rules to use the scatterfile and armlink to compile BL31 * update pubsub.h to add sections to the scatterfile NOTE: THIS CHANGE HAS BEEN VERIFIED WITH TEGRA PLATFORMS ONLY. Change-Id: I7bb78b991c97d74a842e5635c74cb0b18e0fce67 Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2019-02-08libc: Move setjmp to libc folderAntonio Nino Diaz
Now that setjmp() and longjmp() are compliant with the standard they can be moved with the other libc files. Change-Id: Iea3b91c34eb353ace5e171e72f331602d57774d5 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2019-01-24Make device tree pre-processing similar to U-boot/LinuxManish Pandey
Following changes are done to make DT pre-processing similar to that of U-boot/Linux kernel. 1. Creating seperate CPPFLAGS for DT preprocessing so that compiler options specific to it can be accommodated. e.g: "-undef" compiler option avoids replacing "linux" string(used in device trees) with "1" as "linux" is a pre-defined macro in gnu99 standard. 2. Replace CPP with PP for DT pre-processing, as CPP in U-boot/Linux is exported as "${CROSS_COMPILE}gcc -E" while in TF-A it is exported as "${CROSS_COMPILE}cpp". Change-Id: If4c61a249d51614d9f53ae30b602036d50c02349 Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
2019-01-10build: Support BL-specific build flagsJeenu Viswambharan
With this patch, each BL image can have its own compiler flags. Change-Id: Ic9075a20bc6f6dc8a277587b9bee5e062306c090 Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
2018-11-22romlib: Allow patching of romlib functionsSathees Balya
This change allows patching of functions in the romlib. This can be done by adding "patch" at the end of the jump table entry for the function that needs to be patched in the file jmptbl.i. Functions patched in the jump table list will be built as part of the BL image and the romlib version will not be used Change-Id: Iefb200cb86e2a4b61ad3ee6180d3ecc39bad537f Signed-off-by: Sathees Balya <sathees.balya@arm.com>
2018-10-08Makefile: Support totally quiet output with -sAndre Przywara
"-s" is a command line option to the make tool, to suppress normal output, something to the effect of prepending every line with '@' in the Makefile. However with our V={0|1} support, we now print the shortened command line output in any case (even with V=1, in addition to the long line!). Normally -s helps to not miss non-fatal warnings, which tend to scroll out of the window easily. Introduce a new Makefile variable ECHO, to control the shortened output. We only set it in the (current default) V=0 case, and replace every occurence of "@echo" with that variable. When the user specifies "-s", we set ECHO to some magic string which changes the output line into a comment, so the output is suppressed. Beside suppressing every output for "-s", we also avoid the redundant short output when compiling with V=1. This changes the output to: ========== $ make -s PLAT=.... bl31 Built build/.../release/bl31.bin ========== $ make PLAT=.... bl31 ... CC lib/libc/strncmp.c CC lib/libc/strnlen.c ... ========== $ make V=1 PLAT=.... bl31 ... gcc -DDEBUG=0 .... -o build/.../release/libc/strncmp.o gcc -DDEBUG=0 .... -o build/.../release/libc/strnlen.o ... ========== Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2018-10-04Merge pull request #1595 from Yann-lms/dts_depSoby Mathew
MAKE_DTB: dependencies on device tree source files
2018-10-03Set the IMAGE_BLx flag for the linker preprocessorDaniel Boulby
Change-Id: Ibc91f119c99413ded59a9db3db918d22f0517bc1 Signed-off-by: Daniel Boulby <daniel.boulby@arm.com>
2018-09-28MAKE_DTB: dependencies on device tree source filesYann Gautier
Fixes the dependencies issue for DTB image build. Use -MT $(DTBS) -MMD -MF $(DTSDEP) to generate the precompilation dependencies on DTS file(s). "-MT $(DTBS)" builds a dependency for the target DTS file. "-MMD" includes header file dependencies but not on system header files. "-MF $(DTSDEP)" generates a Makefile script to define the dependencies which is included afterward. This change renames existing variable DEP into DTBDEP. Signed-off-by: Yann Gautier <yann.gautier@st.com> Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
2018-08-03Add support for romlib in the build systemRoberto Vargas
Romlib is a new image that is stored in ROM and contains the code of several libraries that can be shared between different images. All the functions within in the library are accessed using a jump table which allows to update the romlib image whithout changing the binary compatibility. This jump table can be also stored in RAM and it can allow to patch a romlib with potential bugs fixes.. Change-Id: If980ccdaca24b7aaca900e32acc68baf6f94ab35 Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
2018-08-03Add make macros to build library archivesRoberto Vargas
This patch adds all the make macros needed to create a library archive and to use it in the link stage. Change-Id: I26597bfd6543649d0b68a9b1e06aec1ba353e6de Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
2018-07-18make: support libraries in MAKE_BL macroKonstantin Porotchkin
Add support for BLx stages to use libraries in MAKE_BL macro. This change does not affect BL stages that do not have BL_LIBS variable defined in their makefiles. However in case that BL wants to use external library (for instance vendor-specific DDR initialization code supplied as a library), this patch will allow to build BL image linked with such library. Change-Id: Ife29069a72dc4aff833db6ef8b828736d6689b78 Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
2018-06-18Build: add cpp build processing for dtbYann Gautier
This is an add-on feature that allows processing device tree with external includes. "-Iinclude" is also added to INCLUDES. It allows inclusion of dt-bindings files either in dts files or drivers, as those files will be in include/dt-bindings/. "-i fdts" is added to the DTC command line. As the pre-processed files are in build directory, the DT source directory has to be explicitely included, to manages /include/ directives. fixes arm-software/tf-issues#595 Signed-off-by: Lionel Debieve <lionel.debieve@st.com> Signed-off-by: Yann Gautier <yann.gautier@st.com>
2018-03-01Make all build results depend on all makefilesStephen Warren
This makes incremental builds work when the only change is to a definition in a makefile. This version of the patch has been fixed to avoid depending on the dependency makefiles that are generated at build time. Fixes arm-software/tf-issues#551 Signed-off-by: Stephen Warren <swarren@nvidia.com>
2018-02-28Revert "Make all build results depend on all makefiles"Dimitris Papastamos
Seems to have unintended side-effects on the build system such as rebuilding certain parts of TF even though nothing has changed. This reverts commit c6f651f9a3322857c8e1f8250274a0984c024283. Change-Id: I1472e6c630cb6371ec629b7d97a5748d9a6fd096 Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
2018-02-26Makefile: Add `all` target to MAKE_DTBSSoby Mathew
This patch makes some minor changes to `MAKE_DTBS` make macro and adds `dtbs` target to the `all` make target. Change-Id: I1c5b4a603ada31d2dac2ed73da9ff707b410dd11 Signed-off-by: Soby Mathew <soby.mathew@arm.com>
2018-02-21Make all build results depend on all makefilesStephen Warren
This makes incremental builds work when the only change is to a definition in a makefile. Fixes arm-software/tf-issues#551 Signed-off-by: Stephen Warren <swarren@nvidia.com>
2018-02-02Build: add GZIP compression filterMasahiro Yamada
One typical usage of the pre-tool image filter is data compression, and GZIP is one of the most commonly used compression methods. I guess this is generic enough to be put in the common script instead of platform.mk. If you want to use this, you can add something like follows to your platform.mk: BL32_PRE_TOOL_FILTER := GZIP BL33_PRE_TOOL_FILTER := GZIP Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-02-02Build: support pre-tool image processingMasahiro Yamada
There are cases where we want to process images before they are passed to cert_create / fiptool. My main motivation is data compression. By compressing images, we can save data storage, and possibly speed up loading images. The image verification will also get faster because certificates are generated based on compressed images. Other image transformation filters (for ex. encryption), and their combinations would be possible. So, our build system should support transformation filters in a generic manner. The choice of applied filters is up to platforms (so specified in platform.mk) To define a new filter, <FILTER_NAME>_RULE and <FILTER_NAME>_SUFFIX are needed. For example, the GZIP compression filter can be implemented as follows: ------------------------>8------------------------ define GZIP_RULE $(1): $(2) @echo " GZIP $$@" $(Q)gzip -n -f -9 $$< --stdout > $$@ endef GZIP_SUFFIX := .gz ------------------------>8------------------------ The _RULE defines how to create the target $(1) from the source $(2). The _SUFFIX defines the extension appended to the processed image path. The suffix is not so important because the file name information is not propagated to FIP, but adding a sensible suffix will be good to classify the data file. Platforms can specify which filter is applied to which BL image, like this: ------------------------>8------------------------ BL32_PRE_TOOL_FILTER := GZIP BL33_PRE_TOOL_FILTER := GZIP ------------------------>8------------------------ <IMAGE_NAME>_PRE_TOOL_FILTER specifies per-image filter. With this, different images can be transformed differently. For the case above, only BL32 and BL33 are GZIP-compressed. Nothing is done for other images. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-02-01Build: change the first parameter of TOOL_ADD_IMG to lowercaseMasahiro Yamada
In the next commit, I need the image name in lowercase because output files are generally named in lowercase. Unfortunately, TOOL_ADD_IMG takes the first argument in uppercase since we generally use uppercase Make variables. make_helpers/build_macros.mk provides 'uppercase' macro to convert a string into uppercase, but 'lowercase' does not exist. We can implement it if we like, but it would be more straightforward to change the argument of TOOL_ADD_IMG. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-02-01Build: make tools depend on $(BIN) instead of PHONY targetMasahiro Yamada
The PHONY target "bl*" generate $(BIN) and $(DUMP), but host tools (fiptool, cert_create) only need $(BIN). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-02-01Build: remove third argument of CERT_ADD_CMD_OPTMasahiro Yamada
The third argument was given "true" by images, but it was moved to TOOL_ADD_PAYLOAD. No more caller of CERT_ADD_CMD_OPT uses this. So, the third argument is always empty. Remove it. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-02-01Build: rename FIP_ADD_IMG to TOOL_ADD_IMGMasahiro Yamada
Now FIP_ADD_IMG takes care of both fiptool and cert_create symmetrically. Rename it so that it matches the behavior. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-02-01Build: rename FIP_ADD_PAYLOAD to TOOL_ADD_PAYLOADMasahiro Yamada
Now FIP_ADD_PAYLOAD takes care of both fiptool and cert_create symmetrically. Rename it so that it matches the behavior. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-02-01Build: move cert_create arguments and dependency to FIP_ADD_PAYLOADMasahiro Yamada
The fiptool and cert_create use the same command options for images. It is pretty easy to handle both in the same, symmetrical way. Move CRT_ARGS and CRT_DEPS to FIP_ADD_PAYLOAD. This refactoring makes sense because FIP_ADD_PAYLOAD is called from MAKE_BL (when building images from source), and from FIP_ADD_IMG (when including external images). (FIP_ADD_PAYLOAD will be renamed later on since it now caters to both fiptool and cert_create). We can delete CERT_ADD_CMD_OPT for images in tbbr.mk. It still needs to call CERT_ADD_CMD_OPT directly for certificates. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-02-01Build: rip off unneeded $(eval ...) from buid macrosMasahiro Yamada
The callers of these macros are supposed to use $(eval $(call, ...)). The $(eval ...) on the callee side is unneeded. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-02-01Build: merge build macros between FIP_ and FWU_FIP_Masahiro Yamada
The build system supports generating two FIP images, fip and fwu_fip. Accordingly, we have similar build macros. FIP_ADD_PAYLOAD <--> FWU_FIP_ADD_PAYLOAD CERT_ADD_CMD_OPT <--> FWU_CERT_ADD_CMD_OPT FIP_ADD_IMG <--> FWU_FIP_ADD_IMG The duplicated code increases the maintenance burden. Also, the build rule of BL2U looks clumsy - we want to call MAKE_BL to compile it from source files, but we want to put it in fwu_fip. We can not do it in a single macro call since the current MAKE_BL does not support fwu_fip. To refactor those in a clean way is to support one more argument to specify the FIP prefix. If it is empty, the images are targeted to fip, whereas if the argument is "FWU_", targeted to fwu_fip. The build macros prefixed with FWU_ go away. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-02-01Build: squash MAKE_TOOL_ARGS into MAKE_BLMasahiro Yamada
Now, MAKE_TOOL_ARGS is only called from MAKE_BL. Squash it. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-02-01Build: check if specified external image existsMasahiro Yamada
check_* targets check if the required option are given, but do not check the validity of the argument. If the specified file does not exist, let the build fail immediately instead of passing the invalid file path to tools. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-12-24Build: specify check_* targets as .PHONYMasahiro Yamada
check_* targets just check necessary command line argument, not build any images. They should be specified as .PHONY. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-12-23Build: update comment lines for macrosMasahiro Yamada
Commit 8f0617ef9e46 ("Apply TBBR naming convention to the fip_create options") changed fiptool command options. We often forget to update documentation. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-12-14Merge pull request #1104 from nmenon/dtb_build-v2davidcunado-arm
Makefile: Add ability to build dtb (v2)
2017-11-07Build: introduce ${BUILD_PLAT} target to create the top build directoryMasahiro Yamada
Some platforms (for ex. UniPhier) want to create files in the very top of the build directory. Add ${BUILD_PLAT} so such files can depend on it. Make existing directory targets depend on ${BUILD_PLAT} because they are sub-directories of ${BUILD_PLAT}. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-09-19Makefile: Add ability to build dtbNishanth Menon
This is a revamp of the original approach in: https://github.com/ARM-software/arm-trusted-firmware/pull/747 Current build system has no means to automatically generate dtbs from dts, instead, stores the dtbs in the fdts/ folder. While this makes perfect sense for many reference platforms, this becomes a minor breakage in development flow for newer platforms. However, this can be solved by providing a rule for the dtbs while building the ATF binaries by purely describing which dts sources we need. For example, with this change, we will now be able to describe the dtbs we need for the platform in the corresponding platform.mk file: FDT_SOURCES += fdts/abc.dts This should be able to generate the abc.dtb appropriately. Since device trees are specification of hardware, we don't tie the rule to any specific BL, instead a generic rule is introduced. Further, this approach allows us to generate appropriate dtbs which may be need to be regenerated when a common dtsi gets updated, by just restricting changes to the dtsi alone, instead of synchronizing all the dtbs as well. If dtc is not available in default paths, but is available in an alternate location, it can be chosen by overriding the DTC variable such as 'make DTC=~/dtc/dtc ....` NOTE: dtbs are built only with the explicit make dtbs command. The rule is only available if the platform defines a FDT_SOURCES variable. Signed-off-by: Benjamin Fair <b-fair@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com>
2017-06-28Add support to link an external lib with ARM TFSoby Mathew
This patch defines the variable `LDLIBS` which allows external libraries to be specified to 'ld' to enable it to link the libraries. Change-Id: I02a490eca1074063d00153ccb0ee974ef8859a0e Signed-off-by: Soby Mathew <soby.mathew@arm.com>
2017-06-28Introduce TF_LDFLAGSDouglas Raillard
Use TF_LDFLAGS from the Makefiles, and still append LDFLAGS as well to the compiler's invocation. This allows passing extra options from the make command line using LDFLAGS. Document new LDFLAGS Makefile option. Change-Id: I88c5ac26ca12ac2b2d60a6f150ae027639991f27 Signed-off-by: Douglas Raillard <douglas.raillard@arm.com>
2017-05-23Build: fix assert_boolean implementationMasahiro Yamada
The current assert_boolean does not work with variables assigned with '=' flavor instead of ':='. For example, FOO = $(BAR) BAR := 1 Here, $(value FOO) is evaluated to $(BAR), not 1. This is not what we expect. While I am here, I simplified the implementation. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-05-08Merge pull request #926 from EvanLloyd/win_make_4davidcunado-arm
Minor makefile fixes
2017-05-03Use SPDX license identifiersdp-arm
To make software license auditing simpler, use SPDX[0] license identifiers instead of duplicating the license text in every file. NOTE: Files that have been imported by FreeBSD have not been modified. [0]: https://spdx.org/ Change-Id: I80a00e1f641b8cc075ca5a95b10607ed9ed8761a Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
2017-05-02Build: Correct Unix specific echo commandsEvan Lloyd
Some recent changes have added direct use of the echo command without parameters. This fails on a Windows shell, because echo without parameters reports the mode ("ECHO is on"). This is corrected using the ECHO_BLANK_LINE macro already provided for that purpose. Change-Id: I5fd7192861b4496f6f46b4f096e80a752cd135d6 Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
2017-05-02Build: Fix parallel buildEvan Lloyd
2 problems were found, but are in one change to avoid submitting a patch that might fail to build. The problems were: 1. The macro MAKE_PREREQ_DIR has a minor bug, in that it is capable of generating recursive dependencies. 2. The inclusion of BUILD_DIR in TEMP_OBJ_DIRS left no explicit dependency, BUILD_DIR might not exist when subdirectories are created by a thread on another CPU. This fix corrects these with the following changes: 1. MAKE_PREREQ_DIR does nothing for a direct self dependency. 2. BUILD_DIR is built using MAKE_PREREQ_DIR. 3. BUILD_DIR is an explicit prerequisite of all OBJ_DIRS. Change-Id: I938cddea4a006df225c02a47b9cf759212f27fb7 Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
2017-02-14Introduce locking primitives using CAS instructionJeenu Viswambharan
The ARMv8v.1 architecture extension has introduced support for far atomics, which includes compare-and-swap. Compare and Swap instruction is only available for AArch64. Introduce build options to choose the architecture versions to target ARM Trusted Firmware: - ARM_ARCH_MAJOR: selects the major version of target ARM Architecture. Default value is 8. - ARM_ARCH_MINOR: selects the minor version of target ARM Architecture. Default value is 0. When: (ARM_ARCH_MAJOR > 8) || ((ARM_ARCH_MAJOR == 8) && (ARM_ARCH_MINOR >= 1)), for AArch64, Compare and Swap instruction is used to implement spin locks. Otherwise, the implementation falls back to using load-/store-exclusive instructions. Update user guide, and introduce a section in Firmware Design guide to summarize support for features introduced in ARMv8 Architecture Extensions. Change-Id: I73096a0039502f7aef9ec6ab3ae36680da033f16 Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
2017-01-19Build: strip trailing slashes from directory paths more simplyMasahiro Yamada
Append . then strip /. seems clumsy. Just use $(patsubst %/,%, ). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-01-19Build: Fix parallel buildingMasahiro Yamada
Soren reports build fails if -j option is given: $ make -j16 CROSS_COMPILE=aarch64-linux-gnu- Building fvp make: *** No rule to make target 'build/fvp/release/bl1/', needed by 'build/fvp/release/bl1/bl1.ld'. Stop. make: *** Waiting for unfinished jobs.... The cause of the failure is that $(dir ) leaves a trailing / on the directory names. It must be ripped off to let Make create the directory. There are some ways to fix the issue. Here, I chose to make MAKE_LD look like MAKE_C and MAKE_S because bl*_dirs seems the central place of making directories. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reported-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Tested-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
2017-01-05Build: add -MP option to add dummy rules to *.d filesMasahiro Yamada
This adds a phony target for each dependency other than the main file, causing each to depend on nothing. Without this, the incremental build will fail when a header file is removed. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-01-05Build: generate .d file at the same time as object is createdMasahiro Yamada
Currently, .d files are generated before any objects are built. So, IS_ANYTHING_TO_BUILD flag is needed to avoid such processing for non-build targets. There is a cleverer way; just create a .d file simultaneously when the corresponding object is created. No need to have separate rules for .d files. This commit will also fix a bug; -D$(IMAGE) is defined for $(OBJ), but not for $(PREREQUISITES). So, .d files are generated with different macro sets from those for .o files, then wrong .d files are generated. For example, in lib/cpus/aarch64/cpu_helpers.S #if IMAGE_BL31 #include <cpu_data.h> #endif <cpu_data.h> is parsed for the object when built for BL31, but the .d file does not pick up that dependency. With this commit, the compiler will generate .o and .d at the same time, guaranteeing they are generated under the same circumstances. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-01-05Build: use CPP just for pre-processingMasahiro Yamada
Using AS for pre-processing looks a bit weird, and some assembly specific options are given for nothing. Rather, use CPP. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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