build: Add minimal autotools infrastructure and rules to build libtpm.

This commit adds configuration files implementing a minimal GNU Autotools
build. It follows the common `./bootstrap && ./configure && make`
convention. Currently it only builds a static library for the code under
TPMCmd/tpm/.

bootstrap:
- runs AUTORECONF configured to create symlinks to the required scripts
- generates src.mk file holding variables listing the pathes to source
files (relative to srcdir) used in the build
- uncomment the required macros in the VendorString header leaving the
default values in place

configure.ac:
- sets up basic project metadata using mostly placeholders, including
the version number
- does the typical setup for a c program
- configures libtool
- ensures we're using a compatible version of openssl
- sets up recommended compiler flags being relatively strict
  - build to 'gnu11', this is c11 with a bunch of POSIX and GNU features
  enabled
  - treat all warnings as errors
  - explicitly ignore warnings caused by the current code

Makefile.am:
- build a static library for the 'tpm' module

.gitignore: update to ignore build output on linux

Signed-off-by: Philip Tricca <[email protected]>

.gitignore

@@ -298,3 +298,32 @@ TPMCmd/OsslInclude/*
 # Wolf Build results 
 TPMCmd/WolfDebug/*
 TPMCmd/WolfRelease/*
+
+# Linux build files
+.deps/
+.dirstamp
+.libs/
+*.la
+*.lo
+*.log
+*.o
+*.pp
+*.swp
+*.trs
+Makefile
+Makefile.in
+aclocal.m4
+autom4te.cache/
+compile
+config.guess
+config.log
+config.status
+config.sub
+configure
+depcomp
+install-sh
+libtool
+ltmain.sh
+missing
+src.mk
+TPMCmd/tpm/src/libtpm.a

Makefile.am

@@ -0,0 +1,46 @@
+## The copyright in this software is being made available under the BSD License,
+## included below. This software may be subject to other third party and
+## contributor rights, including patent rights, and no such rights are granted
+## under this license.
+##
+## Copyright (c) Intel Corporation
+##
+## All rights reserved.
+##
+## BSD License
+##
+## Redistribution and use in source and binary forms, with or without modification,
+## are permitted provided that the following conditions are met:
+##
+## Redistributions of source code must retain the above copyright notice, this list
+## of conditions and the following disclaimer.
+##
+## Redistributions in binary form must reproduce the above copyright notice, this
+## list of conditions and the following disclaimer in the documentation and/or
+## other materials provided with the distribution.
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ""AS IS""
+## AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+## DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+## ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+## (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+## LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+## ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+## SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+include src.mk
+
+PLATFORM_INC = -I $(srcdir)/TPMCmd/Platform/include \
+    -I $(srcdir)/TPMCmd/Platform/include/prototypes
+TPM_INC = -I $(srcdir)/TPMCmd/tpm/include \
+    -I $(srcdir)/TPMCmd/tpm/include/prototypes
+
+libtpm = TPMCmd/tpm/src/libtpm.a
+
+noinst_LIBRARIES = $(libtpm)
+
+TPMCmd_tpm_src_libtpm_a_CFLAGS = $(EXTRA_CFLAGS) $(PLATFORM_INC) $(TPM_INC) \
+    $(LIBCRYPTO_CFLAGS)
+TPMCmd_tpm_src_libtpm_a_SOURCES = $(TPM_C) $(TPM_H) $(PLATFORM_H)

bootstrap

@@ -0,0 +1,63 @@
+#!/usr/bin/env sh
+# The copyright in this software is being made available under the BSD License,
+# included below. This software may be subject to other third party and
+# contributor rights, including patent rights, and no such rights are granted
+# under this license.
+#
+# Copyright (c) Intel Corporation
+#
+# All rights reserved.
+#
+# BSD License
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# Redistributions of source code must retain the above copyright notice, this list
+# of conditions and the following disclaimer.
+#
+# Redistributions in binary form must reproduce the above copyright notice, this
+# list of conditions and the following disclaimer in the documentation and/or
+# other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ""AS IS""
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+AUTORECONF=${AUTORECONF:-autoreconf}
+
+# generate list of source files for use in Makefile.am
+# if you add new source files, you must run ./bootstrap again
+src_listvar () {
+    basedir=$1
+    suffix=$2
+    var=$3
+
+    find "${basedir}" -name "${suffix}" | LC_ALL=C sort | tr '\n' ' ' | (printf "${var} = " && cat)
+    echo ""
+}
+
+echo "Generating file lists: src.mk"
+(
+    src_listvar "TPMCmd/Platform" "*.h" "PLATFORM_H"
+    src_listvar "TPMCmd/tpm" "*.c" "TPM_C"
+    src_listvar "TPMCmd/tpm" "*.h" "TPM_H"
+) > src.mk
+
+echo "Setting up build"
+${AUTORECONF} --install --sym
+
+# A freshly checked out source tree will not build. VendorString.h must have
+# these symbols defined to build.
+echo "Setting default vendor strings"
+sed -i 's&^\/\/\(#define[[:space:]]\+FIRMWARE_V1.*\)&\1&;
+        s&^\/\/\(#define[[:space:]]\+MANUFACTURER.*\)&\1&;
+        s&^\/\/\(#define[[:space:]]\+VENDOR_STRING_1.*\)&\1&' \
+       TPMCmd/tpm/include/VendorString.h

configure.ac

@@ -0,0 +1,64 @@
+dnl The copyright in this software is being made available under the BSD License,
+dnl included below. This software may be subject to other third party and
+dnl contributor rights, including patent rights, and no such rights are granted
+dnl under this license.
+dnl
+dnl Copyright (c) Intel Corporation
+dnl
+dnl All rights reserved.
+dnl
+dnl BSD License
+dnl
+dnl Redistribution and use in source and binary forms, with or without modification,
+dnl are permitted provided that the following conditions are met:
+dnl
+dnl Redistributions of source code must retain the above copyright notice, this list
+dnl of conditions and the following disclaimer.
+dnl
+dnl Redistributions in binary form must reproduce the above copyright notice, this
+dnl list of conditions and the following disclaimer in the documentation and/or
+dnl other materials provided with the distribution.
+dnl
+dnl THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ""AS IS""
+dnl AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+dnl IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+dnl DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+dnl ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+dnl (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+dnl LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+dnl ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+dnl (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+dnl SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+AC_INIT([ms-tpm-20-ref],
+        [0.1],
+        [https://github.com/microsoft/ms-tpm-20-ref/issues],
+        [],
+        [https://github.com/microsoft/ms-tpm-20-ref])
+AC_CONFIG_MACRO_DIR([m4])
+AC_PROG_CC
+AC_PROG_LN_S
+AC_PROG_RANLIB
+AM_INIT_AUTOMAKE([foreign subdir-objects])
+AC_CONFIG_FILES([Makefile])
+AC_SUBST([DISTCHECK_CONFIGURE_FLAGS],[$ac_configure_args])
+
+PKG_CHECK_MODULES([LIBCRYPTO], [libcrypto < 1.1 ])
+
+ADD_COMPILER_FLAG([-std=gnu11])
+ADD_COMPILER_FLAG([-Werror])
+ADD_COMPILER_FLAG([-Wall])
+ADD_COMPILER_FLAG([-Wformat-security])
+ADD_COMPILER_FLAG([-fstack-protector-all])
+ADD_COMPILER_FLAG([-fPIC])
+ADD_COMPILER_FLAG([-Wno-error=empty-body])
+ADD_COMPILER_FLAG([-Wno-error=expansion-to-defined])
+ADD_COMPILER_FLAG([-Wno-error=pointer-to-int-cast])
+ADD_COMPILER_FLAG([-Wno-error=missing-braces])
+
+ADD_LINK_FLAG([-Wl,--no-undefined])
+ADD_LINK_FLAG([-Wl,-z,noexecstack])
+ADD_LINK_FLAG([-Wl,-z,now])
+ADD_LINK_FLAG([-Wl,-z,relro])
+
+AC_OUTPUT

m4/flags.m4

@@ -0,0 +1,84 @@
+dnl The copyright in this software is being made available under the BSD License,
+dnl included below. This software may be subject to other third party and
+dnl contributor rights, including patent rights, and no such rights are granted
+dnl under this license.
+dnl
+dnl Copyright (c) Intel Corporation
+dnl
+dnl All rights reserved.
+dnl
+dnl BSD License
+dnl
+dnl Redistribution and use in source and binary forms, with or without modification,
+dnl are permitted provided that the following conditions are met:
+dnl
+dnl Redistributions of source code must retain the above copyright notice, this list
+dnl of conditions and the following disclaimer.
+dnl
+dnl Redistributions in binary form must reproduce the above copyright notice, this
+dnl list of conditions and the following disclaimer in the documentation and/or
+dnl other materials provided with the distribution.
+dnl
+dnl THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ""AS IS""
+dnl AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+dnl IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+dnl DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+dnl ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+dnl (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+dnl LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+dnl ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+dnl (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+dnl SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+dnl ADD_COMPILER_FLAG:
+dnl   A macro to add a CFLAG to the EXTRA_CFLAGS variable. This macro will
+dnl   check to be sure the compiler supprts the flag. Flags can be made
+dnl   mandatory (configure will fail).
+dnl $1: C compiler flag to add to EXTRA_CFLAGS.
+dnl $2: Set to "required" to cause configure failure if flag not supported..
+AC_DEFUN([ADD_COMPILER_FLAG],[
+    AX_CHECK_COMPILE_FLAG([$1],[
+        EXTRA_CFLAGS="$EXTRA_CFLAGS $1"
+        AC_SUBST([EXTRA_CFLAGS])],[
+        AS_IF([test x$2 != xrequired],[
+            AC_MSG_WARN([Optional CFLAG "$1" not supported by your compiler, continuing.])],[
+            AC_MSG_ERROR([Required CFLAG "$1" not supported by your compiler, aborting.])]
+        )],[
+        -Wall -Werror]
+    )]
+)
+dnl ADD_PREPROC_FLAG:
+dnl   Add the provided preprocessor flag to the EXTRA_CFLAGS variable. This
+dnl   macro will check to be sure the preprocessor supports the flag.
+dnl   The flag can be made mandatory by provideing the string 'required' as
+dnl   the second parameter.
+dnl $1: Preprocessor flag to add to EXTRA_CFLAGS.
+dnl $2: Set to "required" t ocause configure failure if preprocesor flag
+dnl     is not supported.
+AC_DEFUN([ADD_PREPROC_FLAG],[
+    AX_CHECK_PREPROC_FLAG([$1],[
+        EXTRA_CFLAGS="$EXTRA_CFLAGS $1"
+        AC_SUBST([EXTRA_CFLAGS])],[
+        AS_IF([test x$2 != xrequired],[
+            AC_MSG_WARN([Optional preprocessor flag "$1" not supported by your compiler, continuing.])],[
+            AC_MSG_ERROR([Required preprocessor flag "$1" not supported by your compiler, aborting.])]
+        )],[
+        -Wall -Werror]
+    )]
+)
+dnl ADD_LINK_FLAG:
+dnl   A macro to add a LDLAG to the EXTRA_LDFLAGS variable. This macro will
+dnl   check to be sure the linker supprts the flag. Flags can be made
+dnl   mandatory (configure will fail).
+dnl $1: linker flag to add to EXTRA_LDFLAGS.
+dnl $2: Set to "required" to cause configure failure if flag not supported.
+AC_DEFUN([ADD_LINK_FLAG],[
+    AX_CHECK_LINK_FLAG([$1],[
+        EXTRA_LDFLAGS="$EXTRA_LDFLAGS $1"
+        AC_SUBST([EXTRA_LDFLAGS])],[
+        AS_IF([test x$2 != xrequired],[
+            AC_MSG_WARN([Optional LDFLAG "$1" not supported by your linker, continuing.])],[
+            AC_MSG_ERROR([Required LDFLAG "$1" not supported by your linker, aborting.])]
+        )]
+    )]
+)