build: add support for make -s

Adds support for make -s to get a really silent build. This is
useful to get a shorter travis build log.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Rev

build: add support for make -s

Adds support for make -s to get a really silent build. This is
useful to get a shorter travis build log.

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

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s/CFG_TEE_FW_DEBUG/CFG_TEE_CORE_DEBUG

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

mk/checkconf.mk: update generation of conf.mk

Make generation of conf.mk more consistent with what we do for conf.h,
that is:
- conf.mk shall not be touched if its content does not change,
- write "

mk/checkconf.mk: update generation of conf.mk

Make generation of conf.mk more consistent with what we do for conf.h,
that is:
- conf.mk shall not be touched if its content does not change,
- write "CHK" when checking the file, then "UPD" only if it needs
updating.

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

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Convert configuration variables to CFG_* name

- Rename configuration variables that do not follow the CFG_* convention
- Delete useless -D<VAR> compiler flags
- Slightly reformat mk/conf.mk, add com

Convert configuration variables to CFG_* name

- Rename configuration variables that do not follow the CFG_* convention
- Delete useless -D<VAR> compiler flags
- Slightly reformat mk/conf.mk, add comments

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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Separate compiler for core and user TA

Enables compilation with different compilers for core and user TA.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Tested-by: Jens Wiklander <jens.w

Separate compiler for core and user TA

Enables compilation with different compilers for core and user TA.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Tested-by: Jens Wiklander <jens.wiklander@linaro.org> (QEMU, FVP)
Reviewed-by: Pascal Brand <pascal.brand@linaro.org>

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Added Abstract Layer for PRNG

- Extended crypto_ops with a new prng_ops which handles prng operations.
- Replace calls to get_rng_array() with crypto_ops.prng.read(), this
enforces PRNG operations

Added Abstract Layer for PRNG

- Extended crypto_ops with a new prng_ops which handles prng operations.
- Replace calls to get_rng_array() with crypto_ops.prng.read(), this
enforces PRNG operations go through PRNG HAL, instead of invoking
platform-dependent PRNG implementation directly.
- Create a new mpa_set_random_generator() interface for mpa user to register
a callback to generate random number, instead of expecting the user to provide
a get_rng_array(). This enables libmpa uses crypto_ops.prng.read().
- Added a new configuration CFG_WITH_PRNG_SOFTWARE to toggle SW/HW-dependent
PRNG implementation.
- The SW PRNG implementation is supplied by backed cryto library(libtomcrypt).
- Added a new SW PRNG 'Fortuna' to libtomcrypt.
- Added a new SW PRNG 'RC4' to libtomcrypt, when Fortuna is not available due
to AES and SHA256 not available, fallback to RC4.
- Get rid of bad implemented SW PRNG in plat_vexpress(rng_support.c).
- If CFG_WITH_PRNG_SOFTWARE is not enabled, the platform needs to supply
hw_get_random_byte().

Signed-off-by: SY Chiu <sy.chiu@linaro.org>
Reviewed-by: Pascal Brand <pascal.brand@linaro.org>
Reviewed-by: Joakim Bech <joakim.bech@linaro.org>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Tested-by: Pascal Brand <pascal.brand@linaro.org> (STM platform)
Tested-by: SY Chiu <sy.chiu@linaro.org> (QEMU)

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load/generate TEE Core build configuration file

At build time, conf.in file is generated at output root core directory.

At build entry, if CFG_OPTEE_CONFIG is defined, it specifies the
path of the

load/generate TEE Core build configuration file

At build time, conf.in file is generated at output root core directory.

At build entry, if CFG_OPTEE_CONFIG is defined, it specifies the
path of the target TEE Core build configuration to use.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Tested-by: Etienne CARRIERE <etienne.carriere@st.com>
Reviewed-by: Pascal BRAND <pascal.brand@st.com>
Reviewed-by: Etienne CARRIERE <etienne.carriere@st.com>

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CFG_TEE_CORE_TA_TRACE to disable TA traces

In order to disable TA traces, whatever the compilation options of the
TAs, CFG_TEE_CORE_TA_TRACE can be defined to n

Reviewed-by: Jerome Forissier <jerom

CFG_TEE_CORE_TA_TRACE to disable TA traces

In order to disable TA traces, whatever the compilation options of the
TAs, CFG_TEE_CORE_TA_TRACE can be defined to n

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Tested-by: Pascal Brand <pascal.brand@linaro.org> (STM platform)
Signed-off-by: Pascal Brand <pascal.brand@st.com>

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mk/compile.mk: GNU make 4.0 compatibility

Fixes issue https://github.com/OP-TEE/optee_os/issues/179 (GNU make 4.0
rebuilds everything each time it is run).

GNU make 4.0 includes a fix for bug http:

mk/compile.mk: GNU make 4.0 compatibility

Fixes issue https://github.com/OP-TEE/optee_os/issues/179 (GNU make 4.0
rebuilds everything each time it is run).

GNU make 4.0 includes a fix for bug http://savannah.gnu.org/bugs/?16051
which breaks the C compilation rule in mk/compile.mk. Previous versions
of make would not add the FORCE target to $?, whereas version 4.0 does.
Therefore, one must explicitly exclude FORCE from $? to properly detect
if dependencies have changed.

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

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separate .rodata sections

Puts each .rodata in a file specific .rodata section

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

Cosmetics fixes

Signed-off-by: Pascal Brand <pascal.brand@st.com>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

mk/checkconf.mk: add utility functions to test configuration variables

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

Fixes in trace refactoring

- Deprecates ATAMSG
- trace_ext.c is arm32 specific
- tee_kta_trace.h and trace_ta.h are generic
- Default level is now 1 (was 2)

Signed-off-by: Pascal Brand <pascal.bran

Fixes in trace refactoring

- Deprecates ATAMSG
- trace_ext.c is arm32 specific
- tee_kta_trace.h and trace_ta.h are generic
- Default level is now 1 (was 2)

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

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core: create conf.h from CFG_* Makefile variables

Simplify the use of makefile configuration variables from C code.
With this patch, one can #include <generated/conf.h> instead of adding
CPP flags d

core: create conf.h from CFG_* Makefile variables

Simplify the use of makefile configuration variables from C code.
With this patch, one can #include <generated/conf.h> instead of adding
CPP flags definitions to the .mk files.

- CFG_* variables that are set to 'y' are converted to: #define CFG_FOO 1
- Undefined variables, or variables set to 'n' remain undefined in conf.h
- CFG_* variables with any other value are output unchanged

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

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core/core.mk, mk/config.mk: delete unused definitions

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Pascal Brand <pascal.brand@linaro.org>

build: print 'AS' instead of 'CC' when input file is assembly

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Joakim Bech <joakim.bech@linaro.org>
Reviewed-by: Jens Wiklan

build: print 'AS' instead of 'CC' when input file is assembly

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

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Add support for $(cflags-lib-y)

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

Add support for $(cflags-lib-y)

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Pascal Brand <pascal.brand@linaro.org>
Tested-by: Pascal Brand <pascal.brand@linaro.org> (STM platform)

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Add support for $(lib-use-ld) and $(lib-ldflags)

When building a static library, set lib-use-ld := y to use $(LD) instead of
$(AR). Link flags may be passed in $(lib-ldflags).

Signed-off-by: Jerome

Add support for $(lib-use-ld) and $(lib-ldflags)

When building a static library, set lib-use-ld := y to use $(LD) instead of
$(AR). Link flags may be passed in $(lib-ldflags).

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Pascal Brand <pascal.brand@linaro.org>
Tested-by: Pascal Brand <pascal.brand@linaro.org> (STM platform)

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Add support for per-directory/per-library/per-file includes, and per-library CPP flags

The new variables that can be used in sub.mk are:

1) For includes: incdirs-y, incdirs-lib-y, incdirs-<filena

Add support for per-directory/per-library/per-file includes, and per-library CPP flags

The new variables that can be used in sub.mk are:

1) For includes: incdirs-y, incdirs-lib-y, incdirs-<filename>-y

For example, suppose core/lib/libfoo/sub.mk contains the following:

# All source files declared in $(srcs-y) in this sub.mk will
# have -Icore/lib/libfoo/include
incdirs-y := include

# All source files for the current library $(libname) will be built
# with -Icore/lib/libfoo/include/baz (even files that are in other
# directories)
incdirs-lib-y := include/baz

# In addition to the above, bar.c will be compiled with
# -Icore/lib/libfoo/include/bar
incdirs-bar.c-y := include/bar

2) For CPP flags: cppflags-lib-y

For example, to add -DLIBFOO to all the source files that belong to the same
library, add this to any of the sub.mk files:

cppflags-lib-y := -DLIBFOO

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Pascal Brand <pascal.brand@linaro.org>
Tested-by: Jens Wiklander <jens.wiklander@linaro.org> (QEMU virt platform)

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Fix strict-aliasing for DEBUG=0

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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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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subdir.mk supports absolute path

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

Open-source the TEE Core

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