A local copy of OpenSSL from GitHub
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# libcommon.a Contains common building blocks and other routines,
# potentially needed by any of our providers.
#
# libfips.a Contains all algorithm implementations that should
# go in the FIPS provider. The compilations for this
# library are all done with FIPS_MODULE defined.
#
# liblegacy.a Contains all algorithm implementations that should
# go into the legacy provider. The compilations for
# this library are all done with STATIC_LEGACY defined.
#
# libdefault.a Contains all algorithm implementations that should
# into the default or base provider.
#
# To be noted is that the FIPS provider shares source code with libcrypto,
# which means that select source files from crypto/ are compiled for
# libfips.a the sources from providers/implementations.
#
# This is how a provider module should be linked:
#
# -o {modulename}.so {object files...} lib{modulename}.a libcommon.a
#
# It is crucial that code that checks the FIPS_MODULE macro ends up in
# libfips.a.
# It is crucial that code that checks the STATIC_LEGACY macro ends up in
# liblegacy.a.
# It is recommended that code that is written for libcommon.a doesn't end
# up depending on libfips.a, liblegacy.a or libdefault.a
#
# Code in providers/implementations/ should be written in such a way that
# the OSSL_DISPATCH arrays (and preferably the majority of the actual code)
# end up in either libfips.a, liblegacy.a or libdefault.a.
SUBDIRS=common implementations
INCLUDE[../libcrypto]=common/include
# Libraries we're dealing with
$LIBCOMMON=libcommon.a
$LIBFIPS=libfips.a
$LIBLEGACY=liblegacy.a
$LIBDEFAULT=libdefault.a
LIBS{noinst}=$LIBDEFAULT $LIBCOMMON
# Enough of our implementations include prov/ciphercommon.h (present in
# providers/implementations/include), which includes crypto/*_platform.h
# (present in include), which in turn may include very internal header
# files in crypto/, so let's have a common include list for them all.
$COMMON_INCLUDES=../crypto ../include implementations/include common/include
INCLUDE[$LIBCOMMON]=$COMMON_INCLUDES
INCLUDE[$LIBFIPS]=.. $COMMON_INCLUDES
INCLUDE[$LIBLEGACY]=.. $COMMON_INCLUDES
INCLUDE[$LIBDEFAULT]=.. $COMMON_INCLUDES
DEFINE[$LIBFIPS]=FIPS_MODULE
# Weak dependencies to provide library order information. What is actually
# used is determined by non-weak dependencies.
DEPEND[$LIBCOMMON]{weak}=../libcrypto
# Strong dependencies. This ensures that any time an implementation library
# is used, libcommon gets included as well.
# The $LIBFIPS dependency on $LIBCOMMON is extra strong, to mitigate for
# linking problems because they are interdependent
SOURCE[$LIBFIPS]=$LIBCOMMON
DEPEND[$LIBLEGACY]=$LIBCOMMON
DEPEND[$LIBDEFAULT]=$LIBCOMMON
#
# Default provider stuff
#
# Because the default provider is built in, it means that libcrypto must
# include all the object files that are needed (we do that indirectly,
# by using the appropriate libraries as source). Note that for shared
# libraries, SOURCEd libraries are considered as if they were specified
# with DEPEND.
$DEFAULTGOAL=../libcrypto
SOURCE[$DEFAULTGOAL]=$LIBDEFAULT defltprov.c
INCLUDE[$DEFAULTGOAL]=implementations/include
#
# Base provider stuff
#
# Because the base provider is built in, it means that libcrypto must
# include all of the object files that are needed, just like the default
# provider.
$BASEGOAL=../libcrypto
SOURCE[$BASEGOAL]=$LIBDEFAULT baseprov.c
INCLUDE[$BASEGOAL]=implementations/include
#
# FIPS provider stuff
#
# We define it this way to ensure that configdata.pm will have all the
# necessary information even if we don't build the module. This will allow
# us to make all kinds of checks on the source, based on what we specify in
# diverse build.info files. libfips.a, fips.so and their sources aren't
# built unless the proper LIBS or MODULES statement has been seen, so we
# have those and only those within a condition.
IF[{- !$disabled{fips} -}]
SUBDIRS=fips
$FIPSGOAL=fips
# This is the trigger to actually build the FIPS module. Without these
# statements, the final build file will not have a trace of it.
MODULES{fips}=$FIPSGOAL
LIBS{noinst}=$LIBFIPS
DEPEND[$FIPSGOAL]=$LIBFIPS
INCLUDE[$FIPSGOAL]=../include
DEFINE[$FIPSGOAL]=FIPS_MODULE
IF[{- defined $target{shared_defflag} -}]
SOURCE[$FIPSGOAL]=fips.ld
GENERATE[fips.ld]=../util/providers.num
ENDIF
DEPEND[|build_modules_nodep|]=fipsmodule.cnf
GENERATE[fipsmodule.cnf]=../util/mk-fipsmodule-cnf.pl \
-module $(FIPSMODULE) -section_name fips_sect -key $(FIPSKEY)
DEPEND[fipsmodule.cnf]=$FIPSGOAL
ENDIF
#
# Legacy provider stuff
#
IF[{- !$disabled{legacy} -}]
LIBS{noinst}=$LIBLEGACY
IF[{- $disabled{module} -}]
# Become built in
# In this case, we need to do the same thing a for the default provider,
# and make the liblegacy object files end up in libcrypto. We could also
# just say that for the built-in legacy, we put the source directly in
# libcrypto instead of going via liblegacy, but that makes writing the
# implementation specific build.info files harder to write, so we don't.
$LEGACYGOAL=../libcrypto
SOURCE[$LEGACYGOAL]=$LIBLEGACY
DEFINE[$LEGACYGOAL]=STATIC_LEGACY
ELSE
# Become a module
# In this case, we can work with dependencies
$LEGACYGOAL=legacy
MODULES=$LEGACYGOAL
DEPEND[$LEGACYGOAL]=$LIBLEGACY ../libcrypto
IF[{- defined $target{shared_defflag} -}]
SOURCE[legacy]=legacy.ld
GENERATE[legacy.ld]=../util/providers.num
ENDIF
SOURCE[$LIBLEGACY]=prov_running.c
ENDIF
# Common things that are valid no matter what form the Legacy provider
# takes.
SOURCE[$LEGACYGOAL]=legacyprov.c
INCLUDE[$LEGACYGOAL]=../include implementations/include common/include
ENDIF
#
# Null provider stuff
#
# Because the null provider is built in, it means that libcrypto must
# include all the object files that are needed.
$NULLGOAL=../libcrypto
SOURCE[$NULLGOAL]=nullprov.c prov_running.c