Configure: final cleanup of asm related things

Remove the *_asm templates in Configurations/00-base-templates.conf,
all attempts to inherit them, and the asm() perl function.

[e

Configure: final cleanup of asm related things

Remove the *_asm templates in Configurations/00-base-templates.conf,
all attempts to inherit them, and the asm() perl function.

[extended tests]

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9166)

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Move bn_asm_src file information to build.info files

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9166)

Configure: add mechanism to specify asm target architecture

As preparation for moving asm file specs to build.info files, we must
make sure there is still some base information to help s

Configure: add mechanism to specify asm target architecture

As preparation for moving asm file specs to build.info files, we must
make sure there is still some base information to help select the
correct files.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9166)

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Move uplink file information to build.info files

This file information was hidden in config target files, when they
should really be part of build.info like any other file we build
f

Move uplink file information to build.info files

This file information was hidden in config target files, when they
should really be part of build.info like any other file we build
from. With build.info variables, the task became much easier.

We take the opportunity to move apps_init_src and apps_aux_src to
apps/build.info as well, and to clean up apps/build.info.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9166)

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Configure: add mechanism to specify uplink target architecture

As preparation for moving uplink file specs to build.info files, we
must make sure there is still some base information to

Configure: add mechanism to specify uplink target architecture

As preparation for moving uplink file specs to build.info files, we
must make sure there is still some base information to help select the
correct files.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9166)

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Make "make variables" config attributes for overridable flags

With the support of "make variables" comes the possibility for the
user to override them. However, we need to make a differ

Make "make variables" config attributes for overridable flags

With the support of "make variables" comes the possibility for the
user to override them. However, we need to make a difference between
defaults that we use (and that should be overridable by the user) and
flags that are crucial for building OpenSSL (should not be
overridable).

Typically, overridable flags are those setting optimization levels,
warnings levels, that kind of thing, while non-overridable flags are,
for example, macros that indicate aspects of how the config target
should be treated, such as L_ENDIAN and B_ENDIAN.

We do that differentiation by allowing upper case attributes in the
config targets, named exactly like the "make variables" we support,
and reserving the lower case attributes for non-overridable project
flags.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5534)

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Configure: Add read_eval_file, a general purpose perl file reader/evaluator

It will return the last expression from the input file.

We also use this in read_config, which slightly c

Configure: Add read_eval_file, a general purpose perl file reader/evaluator

It will return the last expression from the input file.

We also use this in read_config, which slightly changes what's
expected of Configurations/*.conf. They do not have to assign
%targets specifically. On the other hand, the table of configs MUST
be the last expression in each of those files.

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4840)

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Configurations/50-masm.conf: add /nologo to ml64 command line.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2810)

appveyor.yml: engage VC-WIN64A-masm.

One of the reasons for why masm/ml64 is not [fully] supported is that
it's problematic to support multiple versions. But latest one usually
works

appveyor.yml: engage VC-WIN64A-masm.

One of the reasons for why masm/ml64 is not [fully] supported is that
it's problematic to support multiple versions. But latest one usually
works and/or it's lesser problem to make it work. So idea here is to
have a "whistle" when it breaks, so that problems can be evaluated as
they emerge. It's kind of "best effort" thing, as opposite to "full
support".

Reviewed-by: Richard Levitte <levitte@openssl.org>

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Configurations: fix typo in 50-masm.conf.

Reviewed-by: Richard Levitte <levitte@openssl.org>

Configuration: add unsupported masm target.

Reviewed-by: Richard Levitte <levitte@openssl.org>