diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index 3e3fab4..5121e17 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -223,6 +223,11 @@
     rm -f programs/test/cmake_subproject/Makefile
     rm -f programs/test/cmake_subproject/cmake_subproject
 
+    # Remove any artifacts from the component_test_cmake_as_subdirectory test.
+    rm -rf programs/test/cmake_subproject/build
+    rm -f programs/test/cmake_subproject/Makefile
+    rm -f programs/test/cmake_subproject/cmake_subproject
+
     if [ -f "$CONFIG_BAK" ]; then
         mv "$CONFIG_BAK" "$CONFIG_H"
     fi
@@ -541,7 +546,7 @@
 
 component_check_names () {
     msg "test/build: declared and exported names" # < 3s
-    record_status tests/scripts/check-names.sh
+    record_status tests/scripts/check-names.sh -v
 }
 
 component_check_doxygen_warnings () {
@@ -580,6 +585,19 @@
     record_status tests/scripts/test-ref-configs.pl
 }
 
+component_test_no_pem_no_fs () {
+    msg "build: Default + !MBEDTLS_PEM_PARSE_C + !MBEDTLS_FS_IO (ASan build)"
+    scripts/config.pl unset MBEDTLS_PEM_PARSE_C
+    scripts/config.pl unset MBEDTLS_FS_IO
+    scripts/config.pl unset MBEDTLS_PSA_ITS_FILE_C # requires a filesystem
+    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_C # requires PSA ITS
+    CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
+    make
+
+    msg "test: !MBEDTLS_PEM_PARSE_C !MBEDTLS_FS_IO - main suites (inc. selftests) (ASan build)" # ~ 50s
+    make test
+}
+
 component_test_rsa_no_crt () {
     msg "build: Default + RSA_NO_CRT (ASan build)" # ~ 6 min
     scripts/config.pl set MBEDTLS_RSA_NO_CRT
@@ -642,7 +660,6 @@
     make CC=clang CFLAGS='-O -Werror -Wall -Wextra -Wno-unused-function' tests
 }
 
-
 component_test_depends_curves () {
     msg "test/build: curves.pl (gcc)" # ~ 4 min
     record_status tests/scripts/curves.pl
@@ -669,24 +686,38 @@
     make TEST_CPP=1
 }
 
-component_test_use_psa_crypto_full_cmake_asan() {
-    # MBEDTLS_USE_PSA_CRYPTO: run the same set of tests as basic-build-test.sh
+component_test_no_use_psa_crypto_full_cmake_asan() {
+    # full minus MBEDTLS_USE_PSA_CRYPTO: run the same set of tests as basic-build-test.sh
     msg "build: cmake, full config + MBEDTLS_USE_PSA_CRYPTO, ASan"
     scripts/config.pl full
     scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # too slow for tests
-    scripts/config.pl unset MBEDTLS_ECP_RESTARTABLE  # restartable ECC not supported through PSA
+    scripts/config.pl set MBEDTLS_ECP_RESTARTABLE  # not using PSA, so enable restartable ECC
     scripts/config.pl set MBEDTLS_PSA_CRYPTO_C
-    scripts/config.pl set MBEDTLS_USE_PSA_CRYPTO
+    scripts/config.pl unset MBEDTLS_USE_PSA_CRYPTO
+    scripts/config.pl unset MBEDTLS_PSA_ITS_FILE_C
+    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_C
     CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
     make
 
-    msg "test: main suites (MBEDTLS_USE_PSA_CRYPTO)"
+    msg "test: main suites (full minus MBEDTLS_USE_PSA_CRYPTO)"
     make test
 }
 
+component_test_check_params_functionality () {
+    msg "build+test: MBEDTLS_CHECK_PARAMS functionality"
+    scripts/config.pl full # includes CHECK_PARAMS
+    # Make MBEDTLS_PARAM_FAILED call mbedtls_param_failed().
+    scripts/config.pl unset MBEDTLS_CHECK_PARAMS_ASSERT
+    scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C
+    # Only build and run tests. Do not build sample programs, because
+    # they don't have a mbedtls_param_failed() function.
+    make CC=gcc CFLAGS='-Werror -O1' lib test
+}
+
 component_test_check_params_without_platform () {
     msg "build+test: MBEDTLS_CHECK_PARAMS without MBEDTLS_PLATFORM_C"
     scripts/config.pl full # includes CHECK_PARAMS
+    # Keep MBEDTLS_PARAM_FAILED as assert.
     scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # too slow for tests
     scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C
     scripts/config.pl unset MBEDTLS_PLATFORM_EXIT_ALT
@@ -704,6 +735,7 @@
     msg "build+test: MBEDTLS_CHECK_PARAMS with alternative MBEDTLS_PARAM_FAILED()"
     scripts/config.pl full # includes CHECK_PARAMS
     scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # too slow for tests
+    # Set MBEDTLS_PARAM_FAILED to nothing.
     sed -i 's/.*\(#define MBEDTLS_PARAM_FAILED( cond )\).*/\1/' "$CONFIG_H"
     make CC=gcc CFLAGS='-Werror -O1' all test
 }
@@ -726,7 +758,6 @@
     scripts/config.pl unset MBEDTLS_FS_IO
     scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_C
     scripts/config.pl unset MBEDTLS_PSA_ITS_FILE_C
-    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_ITS_C
     # 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
@@ -799,14 +830,14 @@
 
 component_test_make_shared () {
     msg "build/test: make shared" # ~ 40s
-    make SHARED=1 all check
+    make SHARED=1 all check -j1
 }
 
 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
     scripts/config.pl full
-    make CC=gcc CFLAGS='-O0 -Werror -Wall -Wextra -m32 -fsanitize=address'
+    make CC=gcc CFLAGS='-O0 -Werror -Wall -Wextra -m32 -fsanitize=address' LDFLAGS='-m32 -fsanitize=address'
 
     msg "test: i386, make, gcc -O0 (ASan build)"
     make test
@@ -825,7 +856,7 @@
     scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE
     scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C
     scripts/config.pl unset MBEDTLS_MEMORY_DEBUG
-    make CC=gcc CFLAGS='-O1 -Werror -Wall -Wextra -m32 -fsanitize=address'
+    make CC=gcc CFLAGS='-O1 -Werror -Wall -Wextra -m32 -fsanitize=address' LDFLAGS='-m32 -fsanitize=address'
 
     msg "test: i386, make, gcc -O1 (ASan build)"
     make test
@@ -837,7 +868,7 @@
 component_test_mx32 () {
     msg "build: 64-bit ILP32, make, gcc" # ~ 30s
     scripts/config.pl full
-    make CC=gcc CFLAGS='-Werror -Wall -Wextra -mx32'
+    make CC=gcc CFLAGS='-Werror -Wall -Wextra -mx32' LDFLAGS='-mx32'
 
     msg "test: 64-bit ILP32, make, gcc"
     make test
@@ -905,39 +936,13 @@
 
 component_build_arm_none_eabi_gcc () {
     msg "build: arm-none-eabi-gcc, make" # ~ 10s
-    scripts/config.pl full
-    scripts/config.pl unset MBEDTLS_TIMING_C
-    scripts/config.pl unset MBEDTLS_FS_IO
-    scripts/config.pl unset MBEDTLS_PSA_ITS_FILE_C
-    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_ITS_C
-    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_C
-    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 baremetal
     make CC=arm-none-eabi-gcc AR=arm-none-eabi-ar LD=arm-none-eabi-ld CFLAGS='-Werror -Wall -Wextra' lib
 }
 
 component_build_arm_none_eabi_gcc_no_udbl_division () {
     msg "build: arm-none-eabi-gcc -DMBEDTLS_NO_UDBL_DIVISION, make" # ~ 10s
-    scripts/config.pl full
-    scripts/config.pl unset MBEDTLS_TIMING_C
-    scripts/config.pl unset MBEDTLS_FS_IO
-    scripts/config.pl unset MBEDTLS_PSA_ITS_FILE_C
-    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_ITS_C
-    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_C
-    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 baremetal
     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"
@@ -946,20 +951,7 @@
 
 component_build_arm_none_eabi_gcc_no_64bit_multiplication () {
     msg "build: arm-none-eabi-gcc MBEDTLS_NO_64BIT_MULTIPLICATION, make" # ~ 10s
-    scripts/config.pl full
-    scripts/config.pl unset MBEDTLS_TIMING_C
-    scripts/config.pl unset MBEDTLS_FS_IO
-    scripts/config.pl unset MBEDTLS_PSA_ITS_FILE_C
-    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_ITS_C
-    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_C
-    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 baremetal
     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"
@@ -968,24 +960,7 @@
 
 component_build_armcc () {
     msg "build: ARM Compiler 5, make"
-    scripts/config.pl full
-    scripts/config.pl unset MBEDTLS_TIMING_C
-    scripts/config.pl unset MBEDTLS_FS_IO
-    scripts/config.pl unset MBEDTLS_PSA_ITS_FILE_C
-    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_ITS_C
-    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_C
-    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
+    scripts/config.pl baremetal
 
     make CC="$ARMC5_CC" AR="$ARMC5_AR" WARNING_CFLAGS='--strict --c99' lib
     make clean
@@ -1008,15 +983,15 @@
 
 component_build_mingw () {
     msg "build: Windows cross build - mingw64, make (Link Library)" # ~ 30s
-    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
+    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 -j1
 
     # 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 CC=i686-w64-mingw32-gcc AR=i686-w64-mingw32-ar LD=i686-w64-minggw32-ld CFLAGS='-Werror' WINDOWS_BUILD=1 tests -j1
     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 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 -j1
+    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 -j1
     make WINDOWS_BUILD=1 clean
 }
 support_build_mingw() {