From 8f073121248d8af5f3b51c0a0f74fd81c3a14a34 Mon Sep 17 00:00:00 2001
From: Gilles Peskine <Gilles.Peskine@arm.com>
Date: Tue, 27 Nov 2018 15:58:47 +0100
Subject: [PATCH] Move the code into functions. No behavior change.

Move almost all the code of this script into functions. There is no
intended behavior change. The goal of this commit is to make
subsequent improvements easier to follow.

A very large number of lines have been reintended. To see what's going
on, ignore whitespace differences (e.g. diff -w).

I followed the following rules:

* Minimize the amount of code that gets moved.
* Don't change anything to what gets executed or displayed.
* Almost all the code must end up in a function.
* One function does one thing. For most of the code, that's from one
  "cleanup" to the next.
* The test sequence functions (run_XXX) are independent.

The change mostly amounts to putting chunks of code into a function
and calling the functions in order. A few test runs are conditional;
in those cases the conditional is around the function call.
---
 tests/scripts/all.sh | 1425 ++++++++++++++++++++++++------------------
 1 file changed, 819 insertions(+), 606 deletions(-)

diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index 19baf5e8a0..a2afab3a08 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -55,6 +55,16 @@
 # Notes for maintainers
 # ---------------------
 #
+# The bulk of the code is organized into functions that follow one of the
+# following naming conventions:
+#  * pre_XXX: things to do before running the tests, in order.
+#  * component_XXX: independent components. They can be run in any order.
+#      * component_check_XXX: quick tests that aren't worth parallelizing
+#      * component_build_XXX: build things but don't run them
+#      * component_test_XXX: build and test
+#  * post_XXX: things to do after running the tests.
+#  * other: miscellaneous support functions.
+#
 # The tests are roughly in order from fastest to slowest. This doesn't
 # have to be exact, but in general you should add slower tests towards
 # the end and fast checks near the beginning.
@@ -80,38 +90,42 @@
 # Abort on errors (and uninitialised variables)
 set -eu
 
-if [ "$( uname )" != "Linux" ]; then
-    echo "This script only works in Linux" >&2
-    exit 1
-elif [ -d library -a -d include -a -d tests ]; then :; else
-    echo "Must be run from mbed TLS root" >&2
-    exit 1
-fi
+pre_check_environment () {
+    if [ "$( uname )" != "Linux" ]; then
+        echo "This script only works in Linux" >&2
+        exit 1
+    elif [ -d library -a -d include -a -d tests ]; then :; else
+        echo "Must be run from mbed TLS root" >&2
+        exit 1
+    fi
+}
 
-CONFIG_H='include/mbedtls/config.h'
-CONFIG_BAK="$CONFIG_H.bak"
+pre_initialize_variables () {
+    CONFIG_H='include/mbedtls/config.h'
+    CONFIG_BAK="$CONFIG_H.bak"
 
-MEMORY=0
-FORCE=0
-KEEP_GOING=0
-RUN_ARMCC=1
+    MEMORY=0
+    FORCE=0
+    KEEP_GOING=0
+    RUN_ARMCC=1
 
-# Default commands, can be overriden by the environment
-: ${OPENSSL:="openssl"}
-: ${OPENSSL_LEGACY:="$OPENSSL"}
-: ${OPENSSL_NEXT:="$OPENSSL"}
-: ${GNUTLS_CLI:="gnutls-cli"}
-: ${GNUTLS_SERV:="gnutls-serv"}
-: ${GNUTLS_LEGACY_CLI:="$GNUTLS_CLI"}
-: ${GNUTLS_LEGACY_SERV:="$GNUTLS_SERV"}
-: ${OUT_OF_SOURCE_DIR:=./mbedtls_out_of_source_build}
-: ${ARMC5_BIN_DIR:=/usr/bin}
-: ${ARMC6_BIN_DIR:=/usr/bin}
+    # Default commands, can be overriden by the environment
+    : ${OPENSSL:="openssl"}
+    : ${OPENSSL_LEGACY:="$OPENSSL"}
+    : ${OPENSSL_NEXT:="$OPENSSL"}
+    : ${GNUTLS_CLI:="gnutls-cli"}
+    : ${GNUTLS_SERV:="gnutls-serv"}
+    : ${GNUTLS_LEGACY_CLI:="$GNUTLS_CLI"}
+    : ${GNUTLS_LEGACY_SERV:="$GNUTLS_SERV"}
+    : ${OUT_OF_SOURCE_DIR:=./mbedtls_out_of_source_build}
+    : ${ARMC5_BIN_DIR:=/usr/bin}
+    : ${ARMC6_BIN_DIR:=/usr/bin}
 
-# if MAKEFLAGS is not set add the -j option to speed up invocations of make
-if [ -n "${MAKEFLAGS+set}" ]; then
-    export MAKEFLAGS="-j"
-fi
+    # if MAKEFLAGS is not set add the -j option to speed up invocations of make
+    if [ -n "${MAKEFLAGS+set}" ]; then
+        export MAKEFLAGS="-j"
+    fi
+}
 
 usage()
 {
@@ -197,17 +211,15 @@ msg()
     current_section=$1
 }
 
-if [ $RUN_ARMCC -ne 0 ]; then
-    armc6_build_test()
-    {
-        FLAGS="$1"
+armc6_build_test()
+{
+    FLAGS="$1"
 
-        msg "build: ARM Compiler 6 ($FLAGS), make"
-        ARM_TOOL_VARIANT="ult" CC="$ARMC6_CC" AR="$ARMC6_AR" CFLAGS="$FLAGS" \
-                        WARNING_CFLAGS='-xc -std=c99' make lib
-        make clean
-    }
-fi
+    msg "build: ARM Compiler 6 ($FLAGS), make"
+    ARM_TOOL_VARIANT="ult" CC="$ARMC6_CC" AR="$ARMC6_AR" CFLAGS="$FLAGS" \
+                    WARNING_CFLAGS='-xc -std=c99' make lib
+    make clean
+}
 
 err_msg()
 {
@@ -232,61 +244,64 @@ check_headers_in_cpp () {
     rm headers.txt
 }
 
-while [ $# -gt 0 ]; do
-    case "$1" in
-        --armcc) RUN_ARMCC=1;;
-        --armc5-bin-dir) shift; ARMC5_BIN_DIR="$1";;
-        --armc6-bin-dir) shift; ARMC6_BIN_DIR="$1";;
-        --force|-f) FORCE=1;;
-        --gnutls-cli) shift; GNUTLS_CLI="$1";;
-        --gnutls-legacy-cli) shift; GNUTLS_LEGACY_CLI="$1";;
-        --gnutls-legacy-serv) shift; GNUTLS_LEGACY_SERV="$1";;
-        --gnutls-serv) shift; GNUTLS_SERV="$1";;
-        --help|-h) usage; exit;;
-        --keep-going|-k) KEEP_GOING=1;;
-        --memory|-m) MEMORY=1;;
-        --no-armcc) RUN_ARMCC=0;;
-        --no-force) FORCE=0;;
-        --no-keep-going) KEEP_GOING=0;;
-        --no-memory) MEMORY=0;;
-        --openssl) shift; OPENSSL="$1";;
-        --openssl-legacy) shift; OPENSSL_LEGACY="$1";;
-        --openssl-next) shift; OPENSSL_NEXT="$1";;
-        --out-of-source-dir) shift; OUT_OF_SOURCE_DIR="$1";;
-        --random-seed) unset SEED;;
-        --release-test|-r) SEED=1;;
-        --seed|-s) shift; SEED="$1";;
-        *)
-            echo >&2 "Unknown option: $1"
-            echo >&2 "Run $0 --help for usage."
-            exit 120
-            ;;
-    esac
-    shift
-done
+pre_parse_command_line () {
+    while [ $# -gt 0 ]; do
+          case "$1" in
+              --armcc) RUN_ARMCC=1;;
+              --armc5-bin-dir) shift; ARMC5_BIN_DIR="$1";;
+              --armc6-bin-dir) shift; ARMC6_BIN_DIR="$1";;
+              --force|-f) FORCE=1;;
+              --gnutls-cli) shift; GNUTLS_CLI="$1";;
+              --gnutls-legacy-cli) shift; GNUTLS_LEGACY_CLI="$1";;
+              --gnutls-legacy-serv) shift; GNUTLS_LEGACY_SERV="$1";;
+              --gnutls-serv) shift; GNUTLS_SERV="$1";;
+              --help|-h) usage; exit;;
+              --keep-going|-k) KEEP_GOING=1;;
+              --memory|-m) MEMORY=1;;
+              --no-armcc) RUN_ARMCC=0;;
+              --no-force) FORCE=0;;
+              --no-keep-going) KEEP_GOING=0;;
+              --no-memory) MEMORY=0;;
+              --openssl) shift; OPENSSL="$1";;
+              --openssl-legacy) shift; OPENSSL_LEGACY="$1";;
+              --openssl-next) shift; OPENSSL_NEXT="$1";;
+              --out-of-source-dir) shift; OUT_OF_SOURCE_DIR="$1";;
+              --random-seed) unset SEED;;
+              --release-test|-r) SEED=1;;
+              --seed|-s) shift; SEED="$1";;
+              *)
+                  echo >&2 "Unknown option: $1"
+                  echo >&2 "Run $0 --help for usage."
+                  exit 120
+                  ;;
+          esac
+          shift
+    done
+}
 
-if [ $FORCE -eq 1 ]; then
-    git checkout-index -f -q $CONFIG_H
-    cleanup
-else
+pre_check_git () {
+    if [ $FORCE -eq 1 ]; then
+        git checkout-index -f -q $CONFIG_H
+        cleanup
+    else
 
-    if [ -d "$OUT_OF_SOURCE_DIR" ]; then
-        echo "Warning - there is an existing directory at '$OUT_OF_SOURCE_DIR'" >&2
-        echo "You can either delete this directory manually, or force the test by rerunning"
-        echo "the script as: $0 --force --out-of-source-dir $OUT_OF_SOURCE_DIR"
-        exit 1
+        if [ -d "$OUT_OF_SOURCE_DIR" ]; then
+            echo "Warning - there is an existing directory at '$OUT_OF_SOURCE_DIR'" >&2
+            echo "You can either delete this directory manually, or force the test by rerunning"
+            echo "the script as: $0 --force --out-of-source-dir $OUT_OF_SOURCE_DIR"
+            exit 1
+        fi
+
+        if ! git diff-files --quiet include/mbedtls/config.h; then
+            err_msg "Warning - the configuration file 'include/mbedtls/config.h' has been edited. "
+            echo "You can either delete or preserve your work, or force the test by rerunning the"
+            echo "script as: $0 --force"
+            exit 1
+        fi
     fi
+}
 
-    if ! git diff-files --quiet include/mbedtls/config.h; then
-        err_msg "Warning - the configuration file 'include/mbedtls/config.h' has been edited. "
-        echo "You can either delete or preserve your work, or force the test by rerunning the"
-        echo "script as: $0 --force"
-        exit 1
-    fi
-fi
-
-build_status=0
-if [ $KEEP_GOING -eq 1 ]; then
+pre_setup_keep_going () {
     failure_summary=
     failure_count=0
     start_red=
@@ -340,11 +355,8 @@ $text"
             echo "Killed by SIG$1."
         fi
     }
-else
-    record_status () {
-        "$@"
-    }
-fi
+}
+
 if_build_succeeded () {
     if [ $build_status -eq 0 ]; then
         record_status "$@"
@@ -357,45 +369,48 @@ not() {
     ! "$@"
 }
 
-msg "info: $0 configuration"
-echo "MEMORY: $MEMORY"
-echo "FORCE: $FORCE"
-echo "SEED: ${SEED-"UNSET"}"
-echo "OPENSSL: $OPENSSL"
-echo "OPENSSL_LEGACY: $OPENSSL_LEGACY"
-echo "OPENSSL_NEXT: $OPENSSL_NEXT"
-echo "GNUTLS_CLI: $GNUTLS_CLI"
-echo "GNUTLS_SERV: $GNUTLS_SERV"
-echo "GNUTLS_LEGACY_CLI: $GNUTLS_LEGACY_CLI"
-echo "GNUTLS_LEGACY_SERV: $GNUTLS_LEGACY_SERV"
-echo "ARMC5_BIN_DIR: $ARMC5_BIN_DIR"
-echo "ARMC6_BIN_DIR: $ARMC6_BIN_DIR"
+pre_print_configuration () {
+    msg "info: $0 configuration"
+    echo "MEMORY: $MEMORY"
+    echo "FORCE: $FORCE"
+    echo "SEED: ${SEED-"UNSET"}"
+    echo "OPENSSL: $OPENSSL"
+    echo "OPENSSL_LEGACY: $OPENSSL_LEGACY"
+    echo "OPENSSL_NEXT: $OPENSSL_NEXT"
+    echo "GNUTLS_CLI: $GNUTLS_CLI"
+    echo "GNUTLS_SERV: $GNUTLS_SERV"
+    echo "GNUTLS_LEGACY_CLI: $GNUTLS_LEGACY_CLI"
+    echo "GNUTLS_LEGACY_SERV: $GNUTLS_LEGACY_SERV"
+    echo "ARMC5_BIN_DIR: $ARMC5_BIN_DIR"
+    echo "ARMC6_BIN_DIR: $ARMC6_BIN_DIR"
+}
 
-ARMC5_CC="$ARMC5_BIN_DIR/armcc"
-ARMC5_AR="$ARMC5_BIN_DIR/armar"
-ARMC6_CC="$ARMC6_BIN_DIR/armclang"
-ARMC6_AR="$ARMC6_BIN_DIR/armar"
+pre_check_tools () {
+    ARMC5_CC="$ARMC5_BIN_DIR/armcc"
+    ARMC5_AR="$ARMC5_BIN_DIR/armar"
+    ARMC6_CC="$ARMC6_BIN_DIR/armclang"
+    ARMC6_AR="$ARMC6_BIN_DIR/armar"
 
-# To avoid setting OpenSSL and GnuTLS for each call to compat.sh and ssl-opt.sh
-# we just export the variables they require
-export OPENSSL_CMD="$OPENSSL"
-export GNUTLS_CLI="$GNUTLS_CLI"
-export GNUTLS_SERV="$GNUTLS_SERV"
+    # To avoid setting OpenSSL and GnuTLS for each call to compat.sh and ssl-opt.sh
+    # we just export the variables they require
+    export OPENSSL_CMD="$OPENSSL"
+    export GNUTLS_CLI="$GNUTLS_CLI"
+    export GNUTLS_SERV="$GNUTLS_SERV"
 
-# Avoid passing --seed flag in every call to ssl-opt.sh
-if [ -n "${SEED-}" ]; then
-  export SEED
-fi
-
-# Make sure the tools we need are available.
-check_tools "$OPENSSL" "$OPENSSL_LEGACY" "$OPENSSL_NEXT" \
-            "$GNUTLS_CLI" "$GNUTLS_SERV" \
-            "$GNUTLS_LEGACY_CLI" "$GNUTLS_LEGACY_SERV" "doxygen" "dot" \
-            "arm-none-eabi-gcc" "i686-w64-mingw32-gcc" "gdb"
-if [ $RUN_ARMCC -ne 0 ]; then
-    check_tools "$ARMC5_CC" "$ARMC5_AR" "$ARMC6_CC" "$ARMC6_AR"
-fi
+    # Avoid passing --seed flag in every call to ssl-opt.sh
+    if [ -n "${SEED-}" ]; then
+        export SEED
+    fi
 
+    # Make sure the tools we need are available.
+    check_tools "$OPENSSL" "$OPENSSL_LEGACY" "$OPENSSL_NEXT" \
+                "$GNUTLS_CLI" "$GNUTLS_SERV" \
+                "$GNUTLS_LEGACY_CLI" "$GNUTLS_LEGACY_SERV" "doxygen" "dot" \
+                "arm-none-eabi-gcc" "i686-w64-mingw32-gcc" "gdb"
+    if [ $RUN_ARMCC -ne 0 ]; then
+        check_tools "$ARMC5_CC" "$ARMC5_AR" "$ARMC6_CC" "$ARMC6_AR"
+    fi
+}
 
 
 ################################################################
@@ -413,32 +428,46 @@ fi
 #
 # Indicative running times are given for reference.
 
-msg "info: output_env.sh"
-OPENSSL="$OPENSSL" OPENSSL_LEGACY="$OPENSSL_LEGACY" GNUTLS_CLI="$GNUTLS_CLI" \
-    GNUTLS_SERV="$GNUTLS_SERV" GNUTLS_LEGACY_CLI="$GNUTLS_LEGACY_CLI" \
-    GNUTLS_LEGACY_SERV="$GNUTLS_LEGACY_SERV" ARMC5_CC="$ARMC5_CC" \
-    ARMC6_CC="$ARMC6_CC" RUN_ARMCC="$RUN_ARMCC" scripts/output_env.sh
+pre_print_tools () {
+    msg "info: output_env.sh"
+    OPENSSL="$OPENSSL" OPENSSL_LEGACY="$OPENSSL_LEGACY" GNUTLS_CLI="$GNUTLS_CLI" \
+           GNUTLS_SERV="$GNUTLS_SERV" GNUTLS_LEGACY_CLI="$GNUTLS_LEGACY_CLI" \
+           GNUTLS_LEGACY_SERV="$GNUTLS_LEGACY_SERV" ARMC5_CC="$ARMC5_CC" \
+           ARMC6_CC="$ARMC6_CC" RUN_ARMCC="$RUN_ARMCC" scripts/output_env.sh
+}
 
-msg "test: recursion.pl" # < 1s
-record_status tests/scripts/recursion.pl library/*.c
+component_check_recursion () {
+    msg "test: recursion.pl" # < 1s
+    record_status tests/scripts/recursion.pl library/*.c
+}
 
-msg "test: freshness of generated source files" # < 1s
-record_status tests/scripts/check-generated-files.sh
+component_check_generated_files () {
+    msg "test: freshness of generated source files" # < 1s
+    record_status tests/scripts/check-generated-files.sh
+}
 
-msg "test: doxygen markup outside doxygen blocks" # < 1s
-record_status tests/scripts/check-doxy-blocks.pl
+component_check_doxy_blocks () {
+    msg "test: doxygen markup outside doxygen blocks" # < 1s
+    record_status tests/scripts/check-doxy-blocks.pl
+}
 
-msg "test: check-files.py" # < 1s
-cleanup
-record_status tests/scripts/check-files.py
+component_check_files () {
+    msg "test: check-files.py" # < 1s
+    cleanup
+    record_status tests/scripts/check-files.py
+}
 
-msg "test/build: declared and exported names" # < 3s
-cleanup
-record_status tests/scripts/check-names.sh
+component_check_names () {
+    msg "test/build: declared and exported names" # < 3s
+    cleanup
+    record_status tests/scripts/check-names.sh
+}
 
-msg "test: doxygen warnings" # ~ 3s
-cleanup
-record_status tests/scripts/doxygen.sh
+component_check_doxygen_warnings () {
+    msg "test: doxygen warnings" # ~ 3s
+    cleanup
+    record_status tests/scripts/doxygen.sh
+}
 
 
 
@@ -446,319 +475,374 @@ record_status tests/scripts/doxygen.sh
 #### Build and test many configurations and targets
 ################################################################
 
-msg "build: cmake, gcc, ASan" # ~ 1 min 50s
-cleanup
-CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
-make
+component_test_default_cmake_gcc_asan () {
+    msg "build: cmake, gcc, ASan" # ~ 1 min 50s
+    cleanup
+    CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
+    make
 
-msg "test: main suites (inc. selftests) (ASan build)" # ~ 50s
-make test
+    msg "test: main suites (inc. selftests) (ASan build)" # ~ 50s
+    make test
 
-msg "test: ssl-opt.sh (ASan build)" # ~ 1 min
-if_build_succeeded tests/ssl-opt.sh
+    msg "test: ssl-opt.sh (ASan build)" # ~ 1 min
+    if_build_succeeded tests/ssl-opt.sh
 
-msg "test/build: ref-configs (ASan build)" # ~ 6 min 20s
-record_status tests/scripts/test-ref-configs.pl
+    msg "test/build: ref-configs (ASan build)" # ~ 6 min 20s
+    record_status tests/scripts/test-ref-configs.pl
 
-msg "build: with ASan (rebuild after ref-configs)" # ~ 1 min
-make
+    msg "build: with ASan (rebuild after ref-configs)" # ~ 1 min
+    make
 
-msg "test: compat.sh (ASan build)" # ~ 6 min
-if_build_succeeded tests/compat.sh
+    msg "test: compat.sh (ASan build)" # ~ 6 min
+    if_build_succeeded tests/compat.sh
+}
 
-msg "build: Default + SSLv3 (ASan build)" # ~ 6 min
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl set MBEDTLS_SSL_PROTO_SSL3
-CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
-make
+component_test_sslv3 () {
+    msg "build: Default + SSLv3 (ASan build)" # ~ 6 min
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl set MBEDTLS_SSL_PROTO_SSL3
+    CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
+    make
 
-msg "test: SSLv3 - main suites (inc. selftests) (ASan build)" # ~ 50s
-make test
+    msg "test: SSLv3 - main suites (inc. selftests) (ASan build)" # ~ 50s
+    make test
 
-msg "build: SSLv3 - compat.sh (ASan build)" # ~ 6 min
-if_build_succeeded tests/compat.sh -m 'tls1 tls1_1 tls1_2 dtls1 dtls1_2'
-if_build_succeeded env OPENSSL_CMD="$OPENSSL_LEGACY" tests/compat.sh -m 'ssl3'
+    msg "build: SSLv3 - compat.sh (ASan build)" # ~ 6 min
+    if_build_succeeded tests/compat.sh -m 'tls1 tls1_1 tls1_2 dtls1 dtls1_2'
+    if_build_succeeded env OPENSSL_CMD="$OPENSSL_LEGACY" tests/compat.sh -m 'ssl3'
 
-msg "build: SSLv3 - ssl-opt.sh (ASan build)" # ~ 6 min
-if_build_succeeded tests/ssl-opt.sh
+    msg "build: SSLv3 - ssl-opt.sh (ASan build)" # ~ 6 min
+    if_build_succeeded tests/ssl-opt.sh
+}
 
-msg "build: Default + !MBEDTLS_SSL_RENEGOTIATION (ASan build)" # ~ 6 min
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl unset MBEDTLS_SSL_RENEGOTIATION
-CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
-make
+component_test_no_renegotiation () {
+    msg "build: Default + !MBEDTLS_SSL_RENEGOTIATION (ASan build)" # ~ 6 min
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl unset MBEDTLS_SSL_RENEGOTIATION
+    CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
+    make
 
-msg "test: !MBEDTLS_SSL_RENEGOTIATION - main suites (inc. selftests) (ASan build)" # ~ 50s
-make test
+    msg "test: !MBEDTLS_SSL_RENEGOTIATION - main suites (inc. selftests) (ASan build)" # ~ 50s
+    make test
 
-msg "test: !MBEDTLS_SSL_RENEGOTIATION - ssl-opt.sh (ASan build)" # ~ 6 min
-if_build_succeeded tests/ssl-opt.sh
+    msg "test: !MBEDTLS_SSL_RENEGOTIATION - ssl-opt.sh (ASan build)" # ~ 6 min
+    if_build_succeeded tests/ssl-opt.sh
+}
 
-msg "build: Default + RSA_NO_CRT (ASan build)" # ~ 6 min
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl set MBEDTLS_RSA_NO_CRT
-CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
-make
+component_test_rsa_no_crt () {
+    msg "build: Default + RSA_NO_CRT (ASan build)" # ~ 6 min
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl set MBEDTLS_RSA_NO_CRT
+    CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
+    make
 
-msg "test: RSA_NO_CRT - main suites (inc. selftests) (ASan build)" # ~ 50s
-make test
+    msg "test: RSA_NO_CRT - main suites (inc. selftests) (ASan build)" # ~ 50s
+    make test
 
-msg "test: RSA_NO_CRT - RSA-related part of ssl-opt.sh (ASan build)" # ~ 5s
-if_build_succeeded tests/ssl-opt.sh -f RSA
+    msg "test: RSA_NO_CRT - RSA-related part of ssl-opt.sh (ASan build)" # ~ 5s
+    if_build_succeeded tests/ssl-opt.sh -f RSA
 
-msg "test: RSA_NO_CRT - RSA-related part of compat.sh (ASan build)" # ~ 3 min
-if_build_succeeded tests/compat.sh -t RSA
+    msg "test: RSA_NO_CRT - RSA-related part of compat.sh (ASan build)" # ~ 3 min
+    if_build_succeeded tests/compat.sh -t RSA
+}
 
-msg "build: small SSL_OUT_CONTENT_LEN (ASan build)"
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl set MBEDTLS_SSL_IN_CONTENT_LEN 16384
-scripts/config.pl set MBEDTLS_SSL_OUT_CONTENT_LEN 4096
-CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
-make
+component_test_small_ssl_out_content_len () {
+    msg "build: small SSL_OUT_CONTENT_LEN (ASan build)"
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl set MBEDTLS_SSL_IN_CONTENT_LEN 16384
+    scripts/config.pl set MBEDTLS_SSL_OUT_CONTENT_LEN 4096
+    CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
+    make
 
-msg "test: small SSL_OUT_CONTENT_LEN - ssl-opt.sh MFL and large packet tests"
-if_build_succeeded tests/ssl-opt.sh -f "Max fragment\|Large packet"
+    msg "test: small SSL_OUT_CONTENT_LEN - ssl-opt.sh MFL and large packet tests"
+    if_build_succeeded tests/ssl-opt.sh -f "Max fragment\|Large packet"
+}
 
-msg "build: small SSL_IN_CONTENT_LEN (ASan build)"
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl set MBEDTLS_SSL_IN_CONTENT_LEN 4096
-scripts/config.pl set MBEDTLS_SSL_OUT_CONTENT_LEN 16384
-CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
-make
+component_test_small_ssl_in_content_len () {
+    msg "build: small SSL_IN_CONTENT_LEN (ASan build)"
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl set MBEDTLS_SSL_IN_CONTENT_LEN 4096
+    scripts/config.pl set MBEDTLS_SSL_OUT_CONTENT_LEN 16384
+    CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
+    make
 
-msg "test: small SSL_IN_CONTENT_LEN - ssl-opt.sh MFL tests"
-if_build_succeeded tests/ssl-opt.sh -f "Max fragment"
+    msg "test: small SSL_IN_CONTENT_LEN - ssl-opt.sh MFL tests"
+    if_build_succeeded tests/ssl-opt.sh -f "Max fragment"
+}
 
-msg "build: small MBEDTLS_SSL_DTLS_MAX_BUFFERING #0"
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl set MBEDTLS_SSL_DTLS_MAX_BUFFERING 1000
-CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
-make
+component_test_small_ssl_dtls_max_buffering () {
+    msg "build: small MBEDTLS_SSL_DTLS_MAX_BUFFERING #0"
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl set MBEDTLS_SSL_DTLS_MAX_BUFFERING 1000
+    CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
+    make
 
-msg "test: small MBEDTLS_SSL_DTLS_MAX_BUFFERING #0 - ssl-opt.sh specific reordering test"
-if_build_succeeded tests/ssl-opt.sh -f "DTLS reordering: Buffer out-of-order hs msg before reassembling next, free buffered msg"
+    msg "test: small MBEDTLS_SSL_DTLS_MAX_BUFFERING #0 - ssl-opt.sh specific reordering test"
+    if_build_succeeded tests/ssl-opt.sh -f "DTLS reordering: Buffer out-of-order hs msg before reassembling next, free buffered msg"
+}
 
-msg "build: small MBEDTLS_SSL_DTLS_MAX_BUFFERING #1"
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl set MBEDTLS_SSL_DTLS_MAX_BUFFERING 240
-CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
-make
+component_test_small_mbedtls_ssl_dtls_max_buffering () {
+    msg "build: small MBEDTLS_SSL_DTLS_MAX_BUFFERING #1"
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl set MBEDTLS_SSL_DTLS_MAX_BUFFERING 240
+    CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
+    make
 
-msg "test: small MBEDTLS_SSL_DTLS_MAX_BUFFERING #1 - ssl-opt.sh specific reordering test"
-if_build_succeeded tests/ssl-opt.sh -f "DTLS reordering: Buffer encrypted Finished message, drop for fragmented NewSessionTicket"
+    msg "test: small MBEDTLS_SSL_DTLS_MAX_BUFFERING #1 - ssl-opt.sh specific reordering test"
+    if_build_succeeded tests/ssl-opt.sh -f "DTLS reordering: Buffer encrypted Finished message, drop for fragmented NewSessionTicket"
+}
 
-msg "build: cmake, full config, clang" # ~ 50s
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl full
-scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # too slow for tests
-CC=clang cmake -D CMAKE_BUILD_TYPE:String=Check -D ENABLE_TESTING=On .
-make
+component_test_full_cmake_clang () {
+    msg "build: cmake, full config, clang" # ~ 50s
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl full
+    scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # too slow for tests
+    CC=clang cmake -D CMAKE_BUILD_TYPE:String=Check -D ENABLE_TESTING=On .
+    make
 
-msg "test: main suites (full config)" # ~ 5s
-make test
+    msg "test: main suites (full config)" # ~ 5s
+    make test
 
-msg "test: ssl-opt.sh default, ECJPAKE, SSL async (full config)" # ~ 1s
-if_build_succeeded tests/ssl-opt.sh -f 'Default\|ECJPAKE\|SSL async private'
+    msg "test: ssl-opt.sh default, ECJPAKE, SSL async (full config)" # ~ 1s
+    if_build_succeeded tests/ssl-opt.sh -f 'Default\|ECJPAKE\|SSL async private'
 
-msg "test: compat.sh RC4, DES & NULL (full config)" # ~ 2 min
-if_build_succeeded env OPENSSL_CMD="$OPENSSL_LEGACY" GNUTLS_CLI="$GNUTLS_LEGACY_CLI" GNUTLS_SERV="$GNUTLS_LEGACY_SERV" tests/compat.sh -e '3DES\|DES-CBC3' -f 'NULL\|DES\|RC4\|ARCFOUR'
+    msg "test: compat.sh RC4, DES & NULL (full config)" # ~ 2 min
+    if_build_succeeded env OPENSSL_CMD="$OPENSSL_LEGACY" GNUTLS_CLI="$GNUTLS_LEGACY_CLI" GNUTLS_SERV="$GNUTLS_LEGACY_SERV" tests/compat.sh -e '3DES\|DES-CBC3' -f 'NULL\|DES\|RC4\|ARCFOUR'
 
-msg "test: compat.sh ARIA + ChachaPoly"
-if_build_succeeded env OPENSSL_CMD="$OPENSSL_NEXT" tests/compat.sh -e '^$' -f 'ARIA\|CHACHA'
+    msg "test: compat.sh ARIA + ChachaPoly"
+    if_build_succeeded env OPENSSL_CMD="$OPENSSL_NEXT" tests/compat.sh -e '^$' -f 'ARIA\|CHACHA'
+}
 
-msg "build: make, full config + DEPRECATED_WARNING, gcc -O" # ~ 30s
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl full
-scripts/config.pl set MBEDTLS_DEPRECATED_WARNING
-# Build with -O -Wextra to catch a maximum of issues.
-make CC=gcc CFLAGS='-O -Werror -Wall -Wextra' lib programs
-make CC=gcc CFLAGS='-O -Werror -Wall -Wextra -Wno-unused-function' tests
+component_build_deprecated () {
+    msg "build: make, full config + DEPRECATED_WARNING, gcc -O" # ~ 30s
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl full
+    scripts/config.pl set MBEDTLS_DEPRECATED_WARNING
+    # Build with -O -Wextra to catch a maximum of issues.
+    make CC=gcc CFLAGS='-O -Werror -Wall -Wextra' lib programs
+    make CC=gcc CFLAGS='-O -Werror -Wall -Wextra -Wno-unused-function' tests
 
-msg "build: make, full config + DEPRECATED_REMOVED, clang -O" # ~ 30s
-# No cleanup, just tweak the configuration and rebuild
-make clean
-scripts/config.pl unset MBEDTLS_DEPRECATED_WARNING
-scripts/config.pl set MBEDTLS_DEPRECATED_REMOVED
-# Build with -O -Wextra to catch a maximum of issues.
-make CC=clang CFLAGS='-O -Werror -Wall -Wextra' lib programs
-make CC=clang CFLAGS='-O -Werror -Wall -Wextra -Wno-unused-function' tests
+    msg "build: make, full config + DEPRECATED_REMOVED, clang -O" # ~ 30s
+    # No cleanup, just tweak the configuration and rebuild
+    make clean
+    scripts/config.pl unset MBEDTLS_DEPRECATED_WARNING
+    scripts/config.pl set MBEDTLS_DEPRECATED_REMOVED
+    # Build with -O -Wextra to catch a maximum of issues.
+    make CC=clang CFLAGS='-O -Werror -Wall -Wextra' lib programs
+    make CC=clang CFLAGS='-O -Werror -Wall -Wextra -Wno-unused-function' tests
+}
 
-msg "test/build: curves.pl (gcc)" # ~ 4 min
-cleanup
-record_status tests/scripts/curves.pl
 
-msg "test/build: depends-hashes.pl (gcc)" # ~ 2 min
-cleanup
-record_status tests/scripts/depends-hashes.pl
+component_test_depends_curves () {
+    msg "test/build: curves.pl (gcc)" # ~ 4 min
+    cleanup
+    record_status tests/scripts/curves.pl
+}
 
-msg "test/build: depends-pkalgs.pl (gcc)" # ~ 2 min
-cleanup
-record_status tests/scripts/depends-pkalgs.pl
+component_test_depends_hashes () {
+    msg "test/build: depends-hashes.pl (gcc)" # ~ 2 min
+    cleanup
+    record_status tests/scripts/depends-hashes.pl
+}
 
-msg "test/build: key-exchanges (gcc)" # ~ 1 min
-cleanup
-record_status tests/scripts/key-exchanges.pl
+component_test_depends_pkalgs () {
+    msg "test/build: depends-pkalgs.pl (gcc)" # ~ 2 min
+    cleanup
+    record_status tests/scripts/depends-pkalgs.pl
+}
 
-msg "build: Unix make, -Os (gcc)" # ~ 30s
-cleanup
-make CC=gcc CFLAGS='-Werror -Wall -Wextra -Os'
+component_build_key_exchanges () {
+    msg "test/build: key-exchanges (gcc)" # ~ 1 min
+    cleanup
+    record_status tests/scripts/key-exchanges.pl
+}
 
-msg "test: verify header list in cpp_dummy_build.cpp"
-record_status check_headers_in_cpp
+component_build_default_make_gcc_and_cxx () {
+    msg "build: Unix make, -Os (gcc)" # ~ 30s
+    cleanup
+    make CC=gcc CFLAGS='-Werror -Wall -Wextra -Os'
 
-msg "build: Unix make, incremental g++"
-make TEST_CPP=1
+    msg "test: verify header list in cpp_dummy_build.cpp"
+    record_status check_headers_in_cpp
 
-# Full configuration build, without platform support, file IO and net sockets.
-# This should catch missing mbedtls_printf definitions, and by disabling file
-# IO, it should catch missing '#include <stdio.h>'
-msg "build: full config except platform/fsio/net, make, gcc, C99" # ~ 30s
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl full
-scripts/config.pl unset MBEDTLS_PLATFORM_C
-scripts/config.pl unset MBEDTLS_NET_C
-scripts/config.pl unset MBEDTLS_PLATFORM_MEMORY
-scripts/config.pl unset MBEDTLS_PLATFORM_PRINTF_ALT
-scripts/config.pl unset MBEDTLS_PLATFORM_FPRINTF_ALT
-scripts/config.pl unset MBEDTLS_PLATFORM_SNPRINTF_ALT
-scripts/config.pl unset MBEDTLS_PLATFORM_TIME_ALT
-scripts/config.pl unset MBEDTLS_PLATFORM_EXIT_ALT
-scripts/config.pl unset MBEDTLS_ENTROPY_NV_SEED
-scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C
-scripts/config.pl unset MBEDTLS_FS_IO
-# Note, _DEFAULT_SOURCE needs to be defined for platforms using glibc version >2.19,
-# to re-enable platform integration features otherwise disabled in C99 builds
-make CC=gcc CFLAGS='-Werror -Wall -Wextra -std=c99 -pedantic -O0 -D_DEFAULT_SOURCE' lib programs
-make CC=gcc CFLAGS='-Werror -Wall -Wextra -O0' test
+    msg "build: Unix make, incremental g++"
+    make TEST_CPP=1
+}
 
-# catch compile bugs in _uninit functions
-msg "build: full config with NO_STD_FUNCTION, make, gcc" # ~ 30s
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl full
-scripts/config.pl set MBEDTLS_PLATFORM_NO_STD_FUNCTIONS
-scripts/config.pl unset MBEDTLS_ENTROPY_NV_SEED
-make CC=gcc CFLAGS='-Werror -Wall -Wextra -O0'
+component_test_no_platform () {
+    # Full configuration build, without platform support, file IO and net sockets.
+    # This should catch missing mbedtls_printf definitions, and by disabling file
+    # IO, it should catch missing '#include <stdio.h>'
+    msg "build: full config except platform/fsio/net, make, gcc, C99" # ~ 30s
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl full
+    scripts/config.pl unset MBEDTLS_PLATFORM_C
+    scripts/config.pl unset MBEDTLS_NET_C
+    scripts/config.pl unset MBEDTLS_PLATFORM_MEMORY
+    scripts/config.pl unset MBEDTLS_PLATFORM_PRINTF_ALT
+    scripts/config.pl unset MBEDTLS_PLATFORM_FPRINTF_ALT
+    scripts/config.pl unset MBEDTLS_PLATFORM_SNPRINTF_ALT
+    scripts/config.pl unset MBEDTLS_PLATFORM_TIME_ALT
+    scripts/config.pl unset MBEDTLS_PLATFORM_EXIT_ALT
+    scripts/config.pl unset MBEDTLS_ENTROPY_NV_SEED
+    scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C
+    scripts/config.pl unset MBEDTLS_FS_IO
+    # Note, _DEFAULT_SOURCE needs to be defined for platforms using glibc version >2.19,
+    # to re-enable platform integration features otherwise disabled in C99 builds
+    make CC=gcc CFLAGS='-Werror -Wall -Wextra -std=c99 -pedantic -O0 -D_DEFAULT_SOURCE' lib programs
+    make CC=gcc CFLAGS='-Werror -Wall -Wextra -O0' test
+}
 
-msg "build: full config except ssl_srv.c, make, gcc" # ~ 30s
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl full
-scripts/config.pl unset MBEDTLS_SSL_SRV_C
-make CC=gcc CFLAGS='-Werror -Wall -Wextra -O0'
+component_build_no_std_function () {
+    # catch compile bugs in _uninit functions
+    msg "build: full config with NO_STD_FUNCTION, make, gcc" # ~ 30s
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl full
+    scripts/config.pl set MBEDTLS_PLATFORM_NO_STD_FUNCTIONS
+    scripts/config.pl unset MBEDTLS_ENTROPY_NV_SEED
+    make CC=gcc CFLAGS='-Werror -Wall -Wextra -O0'
+}
 
-msg "build: full config except ssl_cli.c, make, gcc" # ~ 30s
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl full
-scripts/config.pl unset MBEDTLS_SSL_CLI_C
-make CC=gcc CFLAGS='-Werror -Wall -Wextra -O0'
+component_build_no_ssl_srv () {
+    msg "build: full config except ssl_srv.c, make, gcc" # ~ 30s
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl full
+    scripts/config.pl unset MBEDTLS_SSL_SRV_C
+    make CC=gcc CFLAGS='-Werror -Wall -Wextra -O0'
+}
 
-# Note, C99 compliance can also be tested with the sockets support disabled,
-# as that requires a POSIX platform (which isn't the same as C99).
-msg "build: full config except net_sockets.c, make, gcc -std=c99 -pedantic" # ~ 30s
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl full
-scripts/config.pl unset MBEDTLS_NET_C # getaddrinfo() undeclared, etc.
-scripts/config.pl set MBEDTLS_NO_PLATFORM_ENTROPY # uses syscall() on GNU/Linux
-make CC=gcc CFLAGS='-Werror -Wall -Wextra -O0 -std=c99 -pedantic' lib
+component_build_no_ssl_cli () {
+    msg "build: full config except ssl_cli.c, make, gcc" # ~ 30s
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl full
+    scripts/config.pl unset MBEDTLS_SSL_CLI_C
+    make CC=gcc CFLAGS='-Werror -Wall -Wextra -O0'
+}
 
-# Run max fragment length tests with MFL disabled
-msg "build: default config except MFL extension (ASan build)" # ~ 30s
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl unset MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
-CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
-make
+component_build_no_sockets () {
+    # Note, C99 compliance can also be tested with the sockets support disabled,
+    # as that requires a POSIX platform (which isn't the same as C99).
+    msg "build: full config except net_sockets.c, make, gcc -std=c99 -pedantic" # ~ 30s
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl full
+    scripts/config.pl unset MBEDTLS_NET_C # getaddrinfo() undeclared, etc.
+    scripts/config.pl set MBEDTLS_NO_PLATFORM_ENTROPY # uses syscall() on GNU/Linux
+    make CC=gcc CFLAGS='-Werror -Wall -Wextra -O0 -std=c99 -pedantic' lib
+}
 
-msg "test: ssl-opt.sh, MFL-related tests"
-if_build_succeeded tests/ssl-opt.sh -f "Max fragment length"
+component_test_no_max_fragment_length () {
+    # Run max fragment length tests with MFL disabled
+    msg "build: default config except MFL extension (ASan build)" # ~ 30s
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl unset MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
+    CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
+    make
 
-msg "build: no MFL extension, small SSL_OUT_CONTENT_LEN (ASan build)"
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl unset MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
-scripts/config.pl set MBEDTLS_SSL_IN_CONTENT_LEN 16384
-scripts/config.pl set MBEDTLS_SSL_OUT_CONTENT_LEN 4096
-CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
-make
+    msg "test: ssl-opt.sh, MFL-related tests"
+    if_build_succeeded tests/ssl-opt.sh -f "Max fragment length"
+}
 
-msg "test: MFL tests (disabled MFL extension case) & large packet tests"
-if_build_succeeded tests/ssl-opt.sh -f "Max fragment length\|Large buffer"
+component_test_no_max_fragment_length_small_ssl_out_content_len () {
+    msg "build: no MFL extension, small SSL_OUT_CONTENT_LEN (ASan build)"
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl unset MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
+    scripts/config.pl set MBEDTLS_SSL_IN_CONTENT_LEN 16384
+    scripts/config.pl set MBEDTLS_SSL_OUT_CONTENT_LEN 4096
+    CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
+    make
 
-msg "build: default config with  MBEDTLS_TEST_NULL_ENTROPY (ASan build)"
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl set MBEDTLS_TEST_NULL_ENTROPY
-scripts/config.pl set MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
-scripts/config.pl set MBEDTLS_ENTROPY_C
-scripts/config.pl unset MBEDTLS_ENTROPY_NV_SEED
-scripts/config.pl unset MBEDTLS_ENTROPY_HARDWARE_ALT
-scripts/config.pl unset MBEDTLS_HAVEGE_C
-CC=gcc cmake  -D UNSAFE_BUILD=ON -D CMAKE_C_FLAGS:String="-fsanitize=address -fno-common -O3" .
-make
+    msg "test: MFL tests (disabled MFL extension case) & large packet tests"
+    if_build_succeeded tests/ssl-opt.sh -f "Max fragment length\|Large buffer"
+}
 
-msg "test: MBEDTLS_TEST_NULL_ENTROPY - main suites (inc. selftests) (ASan build)"
-make test
+component_test_null_entropy () {
+    msg "build: default config with  MBEDTLS_TEST_NULL_ENTROPY (ASan build)"
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl set MBEDTLS_TEST_NULL_ENTROPY
+    scripts/config.pl set MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
+    scripts/config.pl set MBEDTLS_ENTROPY_C
+    scripts/config.pl unset MBEDTLS_ENTROPY_NV_SEED
+    scripts/config.pl unset MBEDTLS_ENTROPY_HARDWARE_ALT
+    scripts/config.pl unset MBEDTLS_HAVEGE_C
+    CC=gcc cmake  -D UNSAFE_BUILD=ON -D CMAKE_C_FLAGS:String="-fsanitize=address -fno-common -O3" .
+    make
 
-msg "build: MBEDTLS_PLATFORM_{CALLOC/FREE}_MACRO enabled (ASan build)"
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl set MBEDTLS_PLATFORM_MEMORY
-scripts/config.pl set MBEDTLS_PLATFORM_CALLOC_MACRO calloc
-scripts/config.pl set MBEDTLS_PLATFORM_FREE_MACRO   free
-CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
-make
+    msg "test: MBEDTLS_TEST_NULL_ENTROPY - main suites (inc. selftests) (ASan build)"
+    make test
+}
 
-msg "test: MBEDTLS_PLATFORM_{CALLOC/FREE}_MACRO enabled (ASan build)"
-make test
+component_test_platform_calloc_macro () {
+    msg "build: MBEDTLS_PLATFORM_{CALLOC/FREE}_MACRO enabled (ASan build)"
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl set MBEDTLS_PLATFORM_MEMORY
+    scripts/config.pl set MBEDTLS_PLATFORM_CALLOC_MACRO calloc
+    scripts/config.pl set MBEDTLS_PLATFORM_FREE_MACRO   free
+    CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
+    make
 
-msg "build: default config with AES_FEWER_TABLES enabled"
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl set MBEDTLS_AES_FEWER_TABLES
-make CC=gcc CFLAGS='-Werror -Wall -Wextra'
+    msg "test: MBEDTLS_PLATFORM_{CALLOC/FREE}_MACRO enabled (ASan build)"
+    make test
+}
 
-msg "test: AES_FEWER_TABLES"
-make test
+component_test_aes_fewer_tables () {
+    msg "build: default config with AES_FEWER_TABLES enabled"
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl set MBEDTLS_AES_FEWER_TABLES
+    make CC=gcc CFLAGS='-Werror -Wall -Wextra'
 
-msg "build: default config with AES_ROM_TABLES enabled"
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl set MBEDTLS_AES_ROM_TABLES
-make CC=gcc CFLAGS='-Werror -Wall -Wextra'
+    msg "test: AES_FEWER_TABLES"
+    make test
+}
 
-msg "test: AES_ROM_TABLES"
-make test
+component_test_aes_rom_tables () {
+    msg "build: default config with AES_ROM_TABLES enabled"
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl set MBEDTLS_AES_ROM_TABLES
+    make CC=gcc CFLAGS='-Werror -Wall -Wextra'
 
-msg "build: default config with AES_ROM_TABLES and AES_FEWER_TABLES enabled"
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl set MBEDTLS_AES_FEWER_TABLES
-scripts/config.pl set MBEDTLS_AES_ROM_TABLES
-make CC=gcc CFLAGS='-Werror -Wall -Wextra'
+    msg "test: AES_ROM_TABLES"
+    make test
+}
 
-msg "test: AES_FEWER_TABLES + AES_ROM_TABLES"
-make test
+component_test_aes_fewer_tables_and_rom_tables () {
+    msg "build: default config with AES_ROM_TABLES and AES_FEWER_TABLES enabled"
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl set MBEDTLS_AES_FEWER_TABLES
+    scripts/config.pl set MBEDTLS_AES_ROM_TABLES
+    make CC=gcc CFLAGS='-Werror -Wall -Wextra'
 
-if uname -a | grep -F Linux >/dev/null; then
+    msg "test: AES_FEWER_TABLES + AES_ROM_TABLES"
+    make test
+}
+
+component_test_make_shared () {
     msg "build/test: make shared" # ~ 40s
     cleanup
     make SHARED=1 all check
-fi
+}
 
-if uname -a | grep -F x86_64 >/dev/null; then
+component_test_m32_o0 () {
     # Build once with -O0, to compile out the i386 specific inline assembly
     msg "build: i386, make, gcc -O0 (ASan build)" # ~ 30s
     cleanup
@@ -768,7 +852,9 @@ if uname -a | grep -F x86_64 >/dev/null; then
 
     msg "test: i386, make, gcc -O0 (ASan build)"
     make test
+}
 
+component_test_m32_o1 () {
     # Build again with -O1, to compile in the i386 specific inline assembly
     msg "build: i386, make, gcc -O1 (ASan build)" # ~ 30s
     cleanup
@@ -778,7 +864,9 @@ if uname -a | grep -F x86_64 >/dev/null; then
 
     msg "test: i386, make, gcc -O1 (ASan build)"
     make test
+}
 
+component_test_mx32 () {
     msg "build: 64-bit ILP32, make, gcc" # ~ 30s
     cleanup
     cp "$CONFIG_H" "$CONFIG_BAK"
@@ -787,187 +875,204 @@ if uname -a | grep -F x86_64 >/dev/null; then
 
     msg "test: 64-bit ILP32, make, gcc"
     make test
-fi # x86_64
+}
 
-msg "build: gcc, force 32-bit bignum limbs"
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl unset MBEDTLS_HAVE_ASM
-scripts/config.pl unset MBEDTLS_AESNI_C
-scripts/config.pl unset MBEDTLS_PADLOCK_C
-make CC=gcc CFLAGS='-Werror -Wall -Wextra -DMBEDTLS_HAVE_INT32'
+component_test_have_int32 () {
+    msg "build: gcc, force 32-bit bignum limbs"
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl unset MBEDTLS_HAVE_ASM
+    scripts/config.pl unset MBEDTLS_AESNI_C
+    scripts/config.pl unset MBEDTLS_PADLOCK_C
+    make CC=gcc CFLAGS='-Werror -Wall -Wextra -DMBEDTLS_HAVE_INT32'
 
-msg "test: gcc, force 32-bit bignum limbs"
-make test
+    msg "test: gcc, force 32-bit bignum limbs"
+    make test
+}
 
-msg "build: gcc, force 64-bit bignum limbs"
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl unset MBEDTLS_HAVE_ASM
-scripts/config.pl unset MBEDTLS_AESNI_C
-scripts/config.pl unset MBEDTLS_PADLOCK_C
-make CC=gcc CFLAGS='-Werror -Wall -Wextra -DMBEDTLS_HAVE_INT64'
+component_test_have_int64 () {
+    msg "build: gcc, force 64-bit bignum limbs"
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl unset MBEDTLS_HAVE_ASM
+    scripts/config.pl unset MBEDTLS_AESNI_C
+    scripts/config.pl unset MBEDTLS_PADLOCK_C
+    make CC=gcc CFLAGS='-Werror -Wall -Wextra -DMBEDTLS_HAVE_INT64'
 
-msg "test: gcc, force 64-bit bignum limbs"
-make test
+    msg "test: gcc, force 64-bit bignum limbs"
+    make test
+}
 
+component_test_no_udbl_division () {
+    msg "build: MBEDTLS_NO_UDBL_DIVISION native" # ~ 10s
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl full
+    scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # too slow for tests
+    scripts/config.pl set MBEDTLS_NO_UDBL_DIVISION
+    make CFLAGS='-Werror -O1'
 
-msg "build: MBEDTLS_NO_UDBL_DIVISION native" # ~ 10s
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl full
-scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # too slow for tests
-scripts/config.pl set MBEDTLS_NO_UDBL_DIVISION
-make CFLAGS='-Werror -O1'
+    msg "test: MBEDTLS_NO_UDBL_DIVISION native" # ~ 10s
+    make test
+}
 
-msg "test: MBEDTLS_NO_UDBL_DIVISION native" # ~ 10s
-make test
+component_test_no_64bit_multiplication () {
+    msg "build: MBEDTLS_NO_64BIT_MULTIPLICATION native" # ~ 10s
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl full
+    scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # too slow for tests
+    scripts/config.pl set MBEDTLS_NO_64BIT_MULTIPLICATION
+    make CFLAGS='-Werror -O1'
 
+    msg "test: MBEDTLS_NO_64BIT_MULTIPLICATION native" # ~ 10s
+    make test
+}
 
-msg "build: MBEDTLS_NO_64BIT_MULTIPLICATION native" # ~ 10s
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl full
-scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # too slow for tests
-scripts/config.pl set MBEDTLS_NO_64BIT_MULTIPLICATION
-make CFLAGS='-Werror -O1'
+component_build_arm_none_eabi_gcc () {
+    msg "build: arm-none-eabi-gcc, make" # ~ 10s
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl full
+    scripts/config.pl unset MBEDTLS_NET_C
+    scripts/config.pl unset MBEDTLS_TIMING_C
+    scripts/config.pl unset MBEDTLS_FS_IO
+    scripts/config.pl unset MBEDTLS_ENTROPY_NV_SEED
+    scripts/config.pl set MBEDTLS_NO_PLATFORM_ENTROPY
+    # following things are not in the default config
+    scripts/config.pl unset MBEDTLS_HAVEGE_C # depends on timing.c
+    scripts/config.pl unset MBEDTLS_THREADING_PTHREAD
+    scripts/config.pl unset MBEDTLS_THREADING_C
+    scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # execinfo.h
+    scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C # calls exit
+    make CC=arm-none-eabi-gcc AR=arm-none-eabi-ar LD=arm-none-eabi-ld CFLAGS='-Werror -Wall -Wextra' lib
+}
 
-msg "test: MBEDTLS_NO_64BIT_MULTIPLICATION native" # ~ 10s
-make test
+component_build_arm_none_eabi_gcc_no_udbl_division () {
+    msg "build: arm-none-eabi-gcc -DMBEDTLS_NO_UDBL_DIVISION, make" # ~ 10s
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl full
+    scripts/config.pl unset MBEDTLS_NET_C
+    scripts/config.pl unset MBEDTLS_TIMING_C
+    scripts/config.pl unset MBEDTLS_FS_IO
+    scripts/config.pl unset MBEDTLS_ENTROPY_NV_SEED
+    scripts/config.pl set MBEDTLS_NO_PLATFORM_ENTROPY
+    # following things are not in the default config
+    scripts/config.pl unset MBEDTLS_HAVEGE_C # depends on timing.c
+    scripts/config.pl unset MBEDTLS_THREADING_PTHREAD
+    scripts/config.pl unset MBEDTLS_THREADING_C
+    scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # execinfo.h
+    scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C # calls exit
+    scripts/config.pl set MBEDTLS_NO_UDBL_DIVISION
+    make CC=arm-none-eabi-gcc AR=arm-none-eabi-ar LD=arm-none-eabi-ld CFLAGS='-Werror -Wall -Wextra' lib
+    echo "Checking that software 64-bit division is not required"
+    if_build_succeeded not grep __aeabi_uldiv library/*.o
+}
 
+component_build_arm_none_eabi_gcc_no_64bit_multiplication () {
+    msg "build: arm-none-eabi-gcc MBEDTLS_NO_64BIT_MULTIPLICATION, make" # ~ 10s
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl full
+    scripts/config.pl unset MBEDTLS_NET_C
+    scripts/config.pl unset MBEDTLS_TIMING_C
+    scripts/config.pl unset MBEDTLS_FS_IO
+    scripts/config.pl unset MBEDTLS_ENTROPY_NV_SEED
+    scripts/config.pl set MBEDTLS_NO_PLATFORM_ENTROPY
+    # following things are not in the default config
+    scripts/config.pl unset MBEDTLS_HAVEGE_C # depends on timing.c
+    scripts/config.pl unset MBEDTLS_THREADING_PTHREAD
+    scripts/config.pl unset MBEDTLS_THREADING_C
+    scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # execinfo.h
+    scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C # calls exit
+    scripts/config.pl set MBEDTLS_NO_64BIT_MULTIPLICATION
+    make CC=arm-none-eabi-gcc AR=arm-none-eabi-ar LD=arm-none-eabi-ld CFLAGS='-Werror -O1 -march=armv6-m -mthumb' lib
+    echo "Checking that software 64-bit multiplication is not required"
+    if_build_succeeded not grep __aeabi_lmul library/*.o
+}
 
-msg "build: arm-none-eabi-gcc, make" # ~ 10s
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl full
-scripts/config.pl unset MBEDTLS_NET_C
-scripts/config.pl unset MBEDTLS_TIMING_C
-scripts/config.pl unset MBEDTLS_FS_IO
-scripts/config.pl unset MBEDTLS_ENTROPY_NV_SEED
-scripts/config.pl set MBEDTLS_NO_PLATFORM_ENTROPY
-# following things are not in the default config
-scripts/config.pl unset MBEDTLS_HAVEGE_C # depends on timing.c
-scripts/config.pl unset MBEDTLS_THREADING_PTHREAD
-scripts/config.pl unset MBEDTLS_THREADING_C
-scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # execinfo.h
-scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C # calls exit
-make CC=arm-none-eabi-gcc AR=arm-none-eabi-ar LD=arm-none-eabi-ld CFLAGS='-Werror -Wall -Wextra' lib
+component_build_armcc () {
+    msg "build: ARM Compiler 5, make"
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl full
+    scripts/config.pl unset MBEDTLS_NET_C
+    scripts/config.pl unset MBEDTLS_TIMING_C
+    scripts/config.pl unset MBEDTLS_FS_IO
+    scripts/config.pl unset MBEDTLS_ENTROPY_NV_SEED
+    scripts/config.pl unset MBEDTLS_HAVE_TIME
+    scripts/config.pl unset MBEDTLS_HAVE_TIME_DATE
+    scripts/config.pl set MBEDTLS_NO_PLATFORM_ENTROPY
+    # following things are not in the default config
+    scripts/config.pl unset MBEDTLS_DEPRECATED_WARNING
+    scripts/config.pl unset MBEDTLS_HAVEGE_C # depends on timing.c
+    scripts/config.pl unset MBEDTLS_THREADING_PTHREAD
+    scripts/config.pl unset MBEDTLS_THREADING_C
+    scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # execinfo.h
+    scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C # calls exit
+    scripts/config.pl unset MBEDTLS_PLATFORM_TIME_ALT # depends on MBEDTLS_HAVE_TIME
 
-msg "build: arm-none-eabi-gcc -DMBEDTLS_NO_UDBL_DIVISION, make" # ~ 10s
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl full
-scripts/config.pl unset MBEDTLS_NET_C
-scripts/config.pl unset MBEDTLS_TIMING_C
-scripts/config.pl unset MBEDTLS_FS_IO
-scripts/config.pl unset MBEDTLS_ENTROPY_NV_SEED
-scripts/config.pl set MBEDTLS_NO_PLATFORM_ENTROPY
-# following things are not in the default config
-scripts/config.pl unset MBEDTLS_HAVEGE_C # depends on timing.c
-scripts/config.pl unset MBEDTLS_THREADING_PTHREAD
-scripts/config.pl unset MBEDTLS_THREADING_C
-scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # execinfo.h
-scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C # calls exit
-scripts/config.pl set MBEDTLS_NO_UDBL_DIVISION
-make CC=arm-none-eabi-gcc AR=arm-none-eabi-ar LD=arm-none-eabi-ld CFLAGS='-Werror -Wall -Wextra' lib
-echo "Checking that software 64-bit division is not required"
-if_build_succeeded not grep __aeabi_uldiv library/*.o
+    if [ $RUN_ARMCC -ne 0 ]; then
+        make CC="$ARMC5_CC" AR="$ARMC5_AR" WARNING_CFLAGS='--strict --c99' lib
+        make clean
 
-msg "build: arm-none-eabi-gcc MBEDTLS_NO_64BIT_MULTIPLICATION, make" # ~ 10s
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl full
-scripts/config.pl unset MBEDTLS_NET_C
-scripts/config.pl unset MBEDTLS_TIMING_C
-scripts/config.pl unset MBEDTLS_FS_IO
-scripts/config.pl unset MBEDTLS_ENTROPY_NV_SEED
-scripts/config.pl set MBEDTLS_NO_PLATFORM_ENTROPY
-# following things are not in the default config
-scripts/config.pl unset MBEDTLS_HAVEGE_C # depends on timing.c
-scripts/config.pl unset MBEDTLS_THREADING_PTHREAD
-scripts/config.pl unset MBEDTLS_THREADING_C
-scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # execinfo.h
-scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C # calls exit
-scripts/config.pl set MBEDTLS_NO_64BIT_MULTIPLICATION
-make CC=arm-none-eabi-gcc AR=arm-none-eabi-ar LD=arm-none-eabi-ld CFLAGS='-Werror -O1 -march=armv6-m -mthumb' lib
-echo "Checking that software 64-bit multiplication is not required"
-if_build_succeeded not grep __aeabi_lmul library/*.o
+        # ARM Compiler 6 - Target ARMv7-A
+        armc6_build_test "--target=arm-arm-none-eabi -march=armv7-a"
 
-msg "build: ARM Compiler 5, make"
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl full
-scripts/config.pl unset MBEDTLS_NET_C
-scripts/config.pl unset MBEDTLS_TIMING_C
-scripts/config.pl unset MBEDTLS_FS_IO
-scripts/config.pl unset MBEDTLS_ENTROPY_NV_SEED
-scripts/config.pl unset MBEDTLS_HAVE_TIME
-scripts/config.pl unset MBEDTLS_HAVE_TIME_DATE
-scripts/config.pl set MBEDTLS_NO_PLATFORM_ENTROPY
-# following things are not in the default config
-scripts/config.pl unset MBEDTLS_DEPRECATED_WARNING
-scripts/config.pl unset MBEDTLS_HAVEGE_C # depends on timing.c
-scripts/config.pl unset MBEDTLS_THREADING_PTHREAD
-scripts/config.pl unset MBEDTLS_THREADING_C
-scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # execinfo.h
-scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C # calls exit
-scripts/config.pl unset MBEDTLS_PLATFORM_TIME_ALT # depends on MBEDTLS_HAVE_TIME
+        # ARM Compiler 6 - Target ARMv7-M
+        armc6_build_test "--target=arm-arm-none-eabi -march=armv7-m"
 
-if [ $RUN_ARMCC -ne 0 ]; then
-    make CC="$ARMC5_CC" AR="$ARMC5_AR" WARNING_CFLAGS='--strict --c99' lib
-    make clean
+        # ARM Compiler 6 - Target ARMv8-A - AArch32
+        armc6_build_test "--target=arm-arm-none-eabi -march=armv8.2-a"
 
-    # ARM Compiler 6 - Target ARMv7-A
-    armc6_build_test "--target=arm-arm-none-eabi -march=armv7-a"
+        # ARM Compiler 6 - Target ARMv8-M
+        armc6_build_test "--target=arm-arm-none-eabi -march=armv8-m.main"
 
-    # ARM Compiler 6 - Target ARMv7-M
-    armc6_build_test "--target=arm-arm-none-eabi -march=armv7-m"
+        # ARM Compiler 6 - Target ARMv8-A - AArch64
+        armc6_build_test "--target=aarch64-arm-none-eabi -march=armv8.2-a"
+    fi
+}
 
-    # ARM Compiler 6 - Target ARMv8-A - AArch32
-    armc6_build_test "--target=arm-arm-none-eabi -march=armv8.2-a"
+component_test_allow_sha1 () {
+    msg "build: allow SHA1 in certificates by default"
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl set MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_CERTIFICATES
+    make CFLAGS='-Werror -Wall -Wextra'
+    msg "test: allow SHA1 in certificates by default"
+    make test
+    if_build_succeeded tests/ssl-opt.sh -f SHA-1
+}
 
-    # ARM Compiler 6 - Target ARMv8-M
-    armc6_build_test "--target=arm-arm-none-eabi -march=armv8-m.main"
+component_test_rsa_no_crt () {
+    msg "build: Default + MBEDTLS_RSA_NO_CRT (ASan build)" # ~ 6 min
+    cleanup
+    cp "$CONFIG_H" "$CONFIG_BAK"
+    scripts/config.pl set MBEDTLS_RSA_NO_CRT
+    CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
+    make
 
-    # ARM Compiler 6 - Target ARMv8-A - AArch64
-    armc6_build_test "--target=aarch64-arm-none-eabi -march=armv8.2-a"
-fi
+    msg "test: MBEDTLS_RSA_NO_CRT - main suites (inc. selftests) (ASan build)"
+    make test
+}
 
-msg "build: allow SHA1 in certificates by default"
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl set MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_CERTIFICATES
-make CFLAGS='-Werror -Wall -Wextra'
-msg "test: allow SHA1 in certificates by default"
-make test
-if_build_succeeded tests/ssl-opt.sh -f SHA-1
+component_build_mingw () {
+    msg "build: Windows cross build - mingw64, make (Link Library)" # ~ 30s
+    cleanup
+    make CC=i686-w64-mingw32-gcc AR=i686-w64-mingw32-ar LD=i686-w64-minggw32-ld CFLAGS='-Werror -Wall -Wextra' WINDOWS_BUILD=1 lib programs
 
-msg "build: Default + MBEDTLS_RSA_NO_CRT (ASan build)" # ~ 6 min
-cleanup
-cp "$CONFIG_H" "$CONFIG_BAK"
-scripts/config.pl set MBEDTLS_RSA_NO_CRT
-CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
-make
+    # note Make tests only builds the tests, but doesn't run them
+    make CC=i686-w64-mingw32-gcc AR=i686-w64-mingw32-ar LD=i686-w64-minggw32-ld CFLAGS='-Werror' WINDOWS_BUILD=1 tests
+    make WINDOWS_BUILD=1 clean
 
-msg "test: MBEDTLS_RSA_NO_CRT - main suites (inc. selftests) (ASan build)"
-make test
-
-msg "build: Windows cross build - mingw64, make (Link Library)" # ~ 30s
-cleanup
-make CC=i686-w64-mingw32-gcc AR=i686-w64-mingw32-ar LD=i686-w64-minggw32-ld CFLAGS='-Werror -Wall -Wextra' WINDOWS_BUILD=1 lib programs
-
-# note Make tests only builds the tests, but doesn't run them
-make CC=i686-w64-mingw32-gcc AR=i686-w64-mingw32-ar LD=i686-w64-minggw32-ld CFLAGS='-Werror' WINDOWS_BUILD=1 tests
-make WINDOWS_BUILD=1 clean
-
-msg "build: Windows cross build - mingw64, make (DLL)" # ~ 30s
-make CC=i686-w64-mingw32-gcc AR=i686-w64-mingw32-ar LD=i686-w64-minggw32-ld CFLAGS='-Werror -Wall -Wextra' WINDOWS_BUILD=1 SHARED=1 lib programs
-make CC=i686-w64-mingw32-gcc AR=i686-w64-mingw32-ar LD=i686-w64-minggw32-ld CFLAGS='-Werror -Wall -Wextra' WINDOWS_BUILD=1 SHARED=1 tests
-make WINDOWS_BUILD=1 clean
-
-# MemSan currently only available on Linux 64 bits
-if uname -a | grep 'Linux.*x86_64' >/dev/null; then
+    msg "build: Windows cross build - mingw64, make (DLL)" # ~ 30s
+    make CC=i686-w64-mingw32-gcc AR=i686-w64-mingw32-ar LD=i686-w64-minggw32-ld CFLAGS='-Werror -Wall -Wextra' WINDOWS_BUILD=1 SHARED=1 lib programs
+    make CC=i686-w64-mingw32-gcc AR=i686-w64-mingw32-ar LD=i686-w64-minggw32-ld CFLAGS='-Werror -Wall -Wextra' WINDOWS_BUILD=1 SHARED=1 tests
+    make WINDOWS_BUILD=1 clean
+}
 
+component_test_memsan () {
     msg "build: MSan (clang)" # ~ 1 min 20s
     cleanup
     cp "$CONFIG_H" "$CONFIG_BAK"
@@ -987,9 +1092,9 @@ if uname -a | grep 'Linux.*x86_64' >/dev/null; then
         msg "test: compat.sh (MSan)" # ~ 6 min 20s
         if_build_succeeded tests/compat.sh
     fi
+}
 
-else # no MemSan
-
+component_test_memcheck () {
     msg "build: Release (clang)"
     cleanup
     CC=clang cmake -D CMAKE_BUILD_TYPE:String=Release .
@@ -1011,63 +1116,171 @@ else # no MemSan
         msg "test: compat.sh --memcheck (Release)"
         if_build_succeeded tests/compat.sh --memcheck
     fi
+}
 
-fi # MemSan
+component_test_cmake_out_of_source () {
+    msg "build: cmake 'out-of-source' build"
+    cleanup
+    MBEDTLS_ROOT_DIR="$PWD"
+    mkdir "$OUT_OF_SOURCE_DIR"
+    cd "$OUT_OF_SOURCE_DIR"
+    cmake "$MBEDTLS_ROOT_DIR"
+    make
 
-msg "build: cmake 'out-of-source' build"
-cleanup
-MBEDTLS_ROOT_DIR="$PWD"
-mkdir "$OUT_OF_SOURCE_DIR"
-cd "$OUT_OF_SOURCE_DIR"
-cmake "$MBEDTLS_ROOT_DIR"
-make
+    msg "test: cmake 'out-of-source' build"
+    make test
+    # Test an SSL option that requires an auxiliary script in test/scripts/.
+    # Also ensure that there are no error messages such as
+    # "No such file or directory", which would indicate that some required
+    # file is missing (ssl-opt.sh tolerates the absence of some files so
+    # may exit with status 0 but emit errors).
+    if_build_succeeded ./tests/ssl-opt.sh -f 'Fallback SCSV: beginning of list' 2>ssl-opt.err
+    if [ -s ssl-opt.err ]; then
+        cat ssl-opt.err >&2
+        record_status [ ! -s ssl-opt.err ]
+        rm ssl-opt.err
+    fi
+    cd "$MBEDTLS_ROOT_DIR"
+    rm -rf "$OUT_OF_SOURCE_DIR"
+    unset MBEDTLS_ROOT_DIR
+}
 
-msg "test: cmake 'out-of-source' build"
-make test
-# Test an SSL option that requires an auxiliary script in test/scripts/.
-# Also ensure that there are no error messages such as
-# "No such file or directory", which would indicate that some required
-# file is missing (ssl-opt.sh tolerates the absence of some files so
-# may exit with status 0 but emit errors).
-if_build_succeeded ./tests/ssl-opt.sh -f 'Fallback SCSV: beginning of list' 2>ssl-opt.err
-if [ -s ssl-opt.err ]; then
-  cat ssl-opt.err >&2
-  record_status [ ! -s ssl-opt.err ]
-  rm ssl-opt.err
-fi
-cd "$MBEDTLS_ROOT_DIR"
-rm -rf "$OUT_OF_SOURCE_DIR"
-unset MBEDTLS_ROOT_DIR
-
-# Test that the function mbedtls_platform_zeroize() is not optimized away by
-# different combinations of compilers and optimization flags by using an
-# auxiliary GDB script. Unfortunately, GDB does not return error values to the
-# system in all cases that the script fails, so we must manually search the
-# output to check whether the pass string is present and no failure strings
-# were printed.
-for optimization_flag in -O2 -O3 -Ofast -Os; do
-    for compiler in clang gcc; do
-        msg "test: $compiler $optimization_flag, mbedtls_platform_zeroize()"
-        cleanup
-        make programs CC="$compiler" DEBUG=1 CFLAGS="$optimization_flag"
-        if_build_succeeded gdb -x tests/scripts/test_zeroize.gdb -nw -batch -nx 2>&1 | tee test_zeroize.log
-        if_build_succeeded grep "The buffer was correctly zeroized" test_zeroize.log
-        if_build_succeeded not grep -i "error" test_zeroize.log
-        rm -f test_zeroize.log
+component_test_zeroize () {
+    # Test that the function mbedtls_platform_zeroize() is not optimized away by
+    # different combinations of compilers and optimization flags by using an
+    # auxiliary GDB script. Unfortunately, GDB does not return error values to the
+    # system in all cases that the script fails, so we must manually search the
+    # output to check whether the pass string is present and no failure strings
+    # were printed.
+    for optimization_flag in -O2 -O3 -Ofast -Os; do
+          for compiler in clang gcc; do
+                msg "test: $compiler $optimization_flag, mbedtls_platform_zeroize()"
+                cleanup
+                make programs CC="$compiler" DEBUG=1 CFLAGS="$optimization_flag"
+                if_build_succeeded gdb -x tests/scripts/test_zeroize.gdb -nw -batch -nx 2>&1 | tee test_zeroize.log
+                if_build_succeeded grep "The buffer was correctly zeroized" test_zeroize.log
+                if_build_succeeded not grep -i "error" test_zeroize.log
+                rm -f test_zeroize.log
+          done
     done
-done
+}
 
-msg "Lint: Python scripts"
-record_status tests/scripts/check-python-files.sh
+component_check_python_files () {
+    msg "Lint: Python scripts"
+    record_status tests/scripts/check-python-files.sh
+}
 
-msg "uint test: generate_test_code.py"
-record_status ./tests/scripts/test_generate_test_code.py
+component_check_generate_test_code () {
+    msg "uint test: generate_test_code.py"
+    record_status ./tests/scripts/test_generate_test_code.py
+}
 
 ################################################################
 #### Termination
 ################################################################
 
-msg "Done, cleaning up"
-cleanup
+post_report () {
+    msg "Done, cleaning up"
+    cleanup
 
-final_report
+    final_report
+}
+
+
+
+################################################################
+#### Run all the things
+################################################################
+
+# Run one component. Currently trivial.
+run_component () {
+    "$@"
+}
+
+# Preliminary setup
+pre_check_environment
+pre_initialize_variables
+pre_parse_command_line "$@"
+pre_check_git
+build_status=0
+if [ $KEEP_GOING -eq 1 ]; then
+    pre_setup_keep_going
+else
+    record_status () {
+        "$@"
+    }
+fi
+pre_print_configuration
+pre_check_tools
+pre_print_tools
+
+# Small things
+run_component component_check_recursion
+run_component component_check_generated_files
+run_component component_check_doxy_blocks
+run_component component_check_files
+run_component component_check_names
+run_component component_check_doxygen_warnings
+
+# Test many different configurations
+run_component component_test_default_cmake_gcc_asan
+run_component component_test_sslv3
+run_component component_test_no_renegotiation
+run_component component_test_rsa_no_crt
+run_component component_test_small_ssl_out_content_len
+run_component component_test_small_ssl_in_content_len
+run_component component_test_small_ssl_dtls_max_buffering
+run_component component_test_small_mbedtls_ssl_dtls_max_buffering
+run_component component_test_full_cmake_clang
+run_component component_build_deprecated
+run_component component_test_depends_curves
+run_component component_test_depends_hashes
+run_component component_test_depends_pkalgs
+run_component component_build_key_exchanges
+run_component component_build_default_make_gcc_and_cxx
+run_component component_test_no_platform
+run_component component_build_no_std_function
+run_component component_build_no_ssl_srv
+run_component component_build_no_ssl_cli
+run_component component_build_no_sockets
+run_component component_test_no_max_fragment_length
+run_component component_test_no_max_fragment_length_small_ssl_out_content_len
+run_component component_test_null_entropy
+run_component component_test_platform_calloc_macro
+run_component component_test_aes_fewer_tables
+run_component component_test_aes_rom_tables
+run_component component_test_aes_fewer_tables_and_rom_tables
+if uname -a | grep -F Linux >/dev/null; then
+    run_component component_test_make_shared
+fi
+if uname -a | grep -F x86_64 >/dev/null; then
+    run_component component_test_m32_o0
+    run_component component_test_m32_o1
+    run_component component_test_mx32
+fi
+run_component component_test_have_int32
+run_component component_test_have_int64
+run_component component_test_no_udbl_division
+run_component component_test_no_64bit_multiplication
+run_component component_build_arm_none_eabi_gcc
+run_component component_build_arm_none_eabi_gcc_no_udbl_division
+run_component component_build_arm_none_eabi_gcc_no_64bit_multiplication
+run_component component_build_armcc
+run_component component_test_allow_sha1
+run_component component_test_rsa_no_crt
+run_component component_build_mingw
+# MemSan currently only available on Linux 64 bits
+if uname -a | grep 'Linux.*x86_64' >/dev/null; then
+    run_component component_test_memsan
+else # no MemSan
+    run_component component_test_memcheck
+fi
+run_component component_test_cmake_out_of_source
+
+# More small things
+run_component component_test_zeroize
+run_component component_check_python_files
+run_component component_check_generate_test_code
+
+# We're done.
+post_report