core: split arm32.h

Splits arm32.h into one ARM generic arm.h and one ARM32 specific arm32.h.
arm32.h should not be included directly, arm.h should be included instead.

Signed-off-by: Jens Wiklande

core: split arm32.h

Splits arm32.h into one ARM generic arm.h and one ARM32 specific arm32.h.
arm32.h should not be included directly, arm.h should be included instead.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Pascal Brand <pascal.brand@linaro.org>

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ta_dev_kit.mk: get platform-specific flags from platform_flags.mk

Platform-specific flags that apply to user-mode code are moved from
from core/arch/$(ARCH)/plat-$(PLATFORM)/conf.mk to a new file:
c

ta_dev_kit.mk: get platform-specific flags from platform_flags.mk

Platform-specific flags that apply to user-mode code are moved from
from core/arch/$(ARCH)/plat-$(PLATFORM)/conf.mk to a new file:
core/arch/$(ARCH)/plat-$(PLATFORM)/platform_flags.mk.

This file is used by ta/mk/ta_dev_kit.mk so that the Trusted Applications
are built with the same flags used when building the user-mode TEE code.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>

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TA-dev-kit: build TA with -mfloat-abi=soft

Solves the same problem as in commit e46048ea67f7...

Signed-off-by: Joakim Bech <joakim.bech@linaro.org>
Reviewed-by: Pascal Brand <pascal.brand@linaro.or

TA-dev-kit: build TA with -mfloat-abi=soft

Solves the same problem as in commit e46048ea67f7...

Signed-off-by: Joakim Bech <joakim.bech@linaro.org>
Reviewed-by: Pascal Brand <pascal.brand@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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Fix TA build error

This fixes a bug introduced by commit 4334e8d. In ta_dev_kit.mk, out-dir must
be set to '.' and not left empty when output directory (O=) is not specified.
Otherwise, when buildin

Fix TA build error

This fixes a bug introduced by commit 4334e8d. In ta_dev_kit.mk, out-dir must
be set to '.' and not left empty when output directory (O=) is not specified.
Otherwise, when building a trusted app, the compile rule will have an unwanted
leading slash (result from the expansion of $(out-dir)/$(...) in compile.mk).
Error is:

make[1]: Entering directory `/home/jerome/tmp/lcu14_optee_hello_world/ta'
CC /hello_world_ta.o
hello_world_ta.c:101:1: fatal error: opening dependency file /.hello_world_ta.o.d: Permission denied
}
^
compilation terminated.

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Makefile variables $(*-dir) should not have a trailing slash

As a general rule, Makefile variables that are directories should not have
a trailing slash, and should be used as: $(some-dir)/some-file

Makefile variables $(*-dir) should not have a trailing slash

As a general rule, Makefile variables that are directories should not have
a trailing slash, and should be used as: $(some-dir)/some-file rather than
$(some-dir)some-file. This is more readable.

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Cosmetic fixes for build output

By default, the OP-TEE build shows abbreviated output similar to the Linux
kernel. This commit fixes a number of deviations/inconsistencies.

- Always print a command

Cosmetic fixes for build output

By default, the OP-TEE build shows abbreviated output similar to the Linux
kernel. This commit fixes a number of deviations/inconsistencies.

- Always print a command in uppercase, followed by the target file.
- Make sure commands and file paths are nicely aligned, with two leading spaces
to make command output/errors better stand out.
- Remove some duplicate slashes in file paths. We use the following rule:
variables that hold directory names such as $(arch-dir) or $(platform-dir)
always have a trailing slash. The 'subdirs' and 'incdirs' variables used in
sub-makefiles are an exception because doing otherwise would needlessly
clutter the sub-makefiles.

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Bugfix TA dev kit

* Small bugfixes to bring the mk-files for TA dev kit up to date.
* Compile TAs with -fpie
* Add fix_ta_binary to fix the absolute relocation issue in TA header

mk/compile.mk: simplify dependency generation; better support ccache

This commit modifies the compilation flags that are used to generate
dependency files (*.o.d). Rather than using the preprocessor

mk/compile.mk: simplify dependency generation; better support ccache

This commit modifies the compilation flags that are used to generate
dependency files (*.o.d). Rather than using the preprocessor's -MD flag
(-Wp,-MD,<depfile>), we now use the frontend's equivalent (-MD -MF <depfile>
-MT <target>).

There are three reasons for doing so:
1. The GCC man page recommends against using -Wp, because "the
preprocessor's direct interface is undocumented and subject to change".
2. The new flags generate the correct rule directly, including the
subdirectory in front of the object name, so scripts/fixdep is not needed
anymore.
3. ccache (3.1.9) would not handle -Wp,-MD as expected. It would preserve
the directory prefix, so that we would end up with an invalid path after
the fixdep phase, making the rules useless. With this patch, OP-TEE builds
fine with ccache:
make -j3 CROSS_COMPILE="ccache arm-linux-gnueabihf-"

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Open-source the TEE Core

Signed-off-by: Pascal Brand <pascal.brand@st.com>