scripts: convert remainging scripts to python3

Convert the remaining scripts to python3. Mostly done with 2to3 and
manual adjustements to the code afterwards.

Signed-off-by: Rouven Czerwinski <r.cz

scripts: convert remainging scripts to python3

Convert the remaining scripts to python3. Mostly done with 2to3 and
manual adjustements to the code afterwards.

Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Jerome Forissier <jerome@forissier.org>
Tested-by: Jerome Forissier <jerome@forissier.org> (QEMU, QEMUv8)

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gen_ld_sects: call `print` as a function

With this change gen_ld_sects.py will be compatible with
python3.

Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Acked-by: Jens Wiklander <jens.w

gen_ld_sects: call `print` as a function

With this change gen_ld_sects.py will be compatible with
python3.

Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Joakim Bech <joakim.bech@linaro.org>

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gen_ld_sects.py: fix issues reported by pycodestyle and re-indent

Fixes issues reported by: pycodestyle gen_ld_sects.py and re-indent
(4 spaces).
Patch obtained by running: autopep8 -i gen_ld_sects.

gen_ld_sects.py: fix issues reported by pycodestyle and re-indent

Fixes issues reported by: pycodestyle gen_ld_sects.py and re-indent
(4 spaces).
Patch obtained by running: autopep8 -i gen_ld_sects.py.

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

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Remove 'All rights reserved' from Linaro files

The text 'All rights reserved' is useless [1]. The Free Software
Foundation's REUSE Initiative best practices document [2] does not
contain these words

Remove 'All rights reserved' from Linaro files

The text 'All rights reserved' is useless [1]. The Free Software
Foundation's REUSE Initiative best practices document [2] does not
contain these words. Therefore, we can safely remove the text from the
files that are owned by Linaro.

Generated by:
spdxify.py --linaro-only --strip-arr optee_os/

Link: [1] https://en.wikipedia.org/wiki/All_rights_reserved
Link: [2] https://reuse.software/practices/
Link: [3] https://github.com/jforissier/misc/blob/f7b56c8/spdxify.py
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Joakim Bech <joakim.bech@linaro.org>

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Remove license notice from Linaro files

Now that we have added SPDX identifiers, we can safely remove the
verbose license text from the files that are owned by Linaro.

Generated by [1]:
spdxify.p

Remove license notice from Linaro files

Now that we have added SPDX identifiers, we can safely remove the
verbose license text from the files that are owned by Linaro.

Generated by [1]:
spdxify.py --linaro-only --strip-license-text optee_os/

Link: [1] https://github.com/jforissier/misc/blob/f7b56c8/spdxify.py
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Joakim Bech <joakim.bech@linaro.org>

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Add SPDX license identifiers

Adds one SPDX-License-Identifier line [1] to each source files that
contains license text.

Generated by [2]:
spdxify.py --add-spdx optee_os/

The scancode tool [3] wa

Add SPDX license identifiers

Adds one SPDX-License-Identifier line [1] to each source files that
contains license text.

Generated by [2]:
spdxify.py --add-spdx optee_os/

The scancode tool [3] was used to double check the license matching
code in the Python script. All the licenses detected by scancode are
either detected by spdxify.py, or have no SPDX identifier, or are false
matches.

Link: [1] https://spdx.org/licenses/
Link: [2] https://github.com/jforissier/misc/blob/f7b56c8/spdxify.py
Link: [3] https://github.com/nexB/scancode-toolkit
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Joakim Bech <joakim.bech@linaro.org>

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scripts/gen_ld_sects.py: Explicitly number positional argument specifiers

Before Python 2.7 omitting the positional argument specifier was not
allowed. Some may still be using earlier Python version

scripts/gen_ld_sects.py: Explicitly number positional argument specifiers

Before Python 2.7 omitting the positional argument specifier was not
allowed. Some may still be using earlier Python version where this
will cause build to fail. Fix this here.

Fixes: 5976a0a5b9bf ("core: avoid incremental linking with -gc")
Reported-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: avoid incremental linking with -gc

The AArch64 linkers seems to have occasional problems with incremental
linking (-i) in combination with garbage collect of sections (-gc). The
way we're orga

core: avoid incremental linking with -gc

The AArch64 linkers seems to have occasional problems with incremental
linking (-i) in combination with garbage collect of sections (-gc). The
way we're organizing the layout of the binary used for paging depends on
-gc to build the different dependency trees for unpaged and
initialization code.

The problem in the linker is tracked in
https://bugs.linaro.org/show_bug.cgi?id=3006 and
https://sourceware.org/bugzilla/show_bug.cgi?id=21524

The problem typically manifests itself by:
aarch64-toolchain/gcc-linaro-6.3.1-2017.02-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-ld: BFD (Linaro_Binutils-2017.02) 2.27.0.20161019 assertion fail /home/tcwg-buildslave/workspace/tcwg-make-release/label/docker-trusty-amd64-tcwg-build/target/aarch64-linux-gnu/snapshots/binutils-gdb.git~linaro_binutils-2_27-branch/bfd/elflink.c:8380
core/arch/arm/kernel/link.mk:90: recipe for target 'out/arm-plat-vexpress/core/init.o' failed
make: *** [out/arm-plat-vexpress/core/init.o] Error 1

With this patch we replace the incremental linking with a full link
using a special link script. With a full link we can't have undefined
symbols so some dummy symbols are provided by the link script when some
object files are skipped when reducing the dependency tree. To
completely get rid of those dummy symbols the script that gathers the
sections is replaced by a python script that skips listed sections (if
provided).

In terms of features in the resulting binary, nothing is changed in this
commit.

Reviewed-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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