Without any -O option, the default is -O0, and then the assembly code
is not used, so this would not be a non-regression test for the
assembly code that doesn't build.
Conflict resolution:
* `scripts/config.pl`:
Take the exclusion of `MBEDTLS_PSA_CRYPTO_SE_C` from the API branch.
Take the removal of `MBEDTLS_PSA_CRYPTO_STORAGE_ITS_C` (obsolete) from
the development branch.
* `tests/scripts/all.sh`:
Multiple instances of factoring a sequence of `config.pl` calls into
a mere `config.pl baremetal` in the development branch, and a change in
the composition of `baremetal` in the API branch. In each case, take the
version from development.
* `tests/suites/test_suite_psa_crypto_slot_management.function`:
A function became non-static in development and disappeared in the API
branch. Keep the version from the API branch. Functions need to be
non-static if they're defined but unused in some configurations,
which is not the case for any function in this file at the moment.
* `tests/suites/test_suite_psa_crypto.function`:
Consecutive changes in the two branches, reconciled.
Resolve conflicts by performing the following operations:
- Reject changes related to building a crypto submodule, since Mbed
Crypto is the crypto submodule.
- Reject X.509, NET, and SSL changes.
- Reject changes to README, as Mbed Crypto is a different project from
Mbed TLS, with a different README.
- Avoid adding mention of ssl-opt.sh in a comment near some modified
code in include/CMakeLists.txt (around where ENABLE_TESTING as added).
- Align config.pl in Mbed TLS with config.pl in Mbed Crypto where PSA
options are concerned, to make future merging easier. There is no
reason for the two to be different in this regard, now that Mbed TLS
always depends on Mbed Crypto. Remaining differences are only the
PSA_CRYPTO_KEY_FILE_ID_ENCODES_OWNER option and the absence of X.509,
NET, and SSL related options in Mbed Crypto's config.pl.
- Align config.h in Mbed Crypto with Mbed TLS's copy, with a few notable
exceptions:
- Leave CMAC on by default.
- Leave storage on by default (including ITS emulation).
- Avoid documenting the PSA Crypto API as is in beta stage in
documentation for MBEDTLS_PSA_CRYPTO_C.
The only remaining differences are a lack of X.509, NET, and SSL
options in Mbed Crypto's config.h, as well as an additional
Mbed-Crypto-specific PSA_CRYPTO_KEY_FILE_ID_ENCODES_OWNER option.
Documentation for the check params feature and related macros is also
updated to match Mbed TLS's description.
- Reject tests/data_files/Makefile changes to generate DER versions of
CRTs and keys, as none of those are used by Mbed Crypto tests.
- Add the "no PEM and no filesystem" test to all.sh, without ssl-opt.sh
run, as Mbed Crypto doesn't have ssl-opt.sh. Also remove use of PSA
Crypto storage and ITS emulation, since those depend on filesystem
support.
- Reject addition of test when no ciphersuites have MAC to all.sh, as
the option being tested, MBEDTLS_SSL_SOME_MODES_USE_MAC, is not
present in Mbed Crypto.
- Use baremetal config in all.sh, as Mbed Crypto's baremetal
configuration does exclude the net module (as it doesn't exist in Mbed
Crypto)
- Reject cmake_subproject_build changes, continuing to link only
libmbedcrypto.
- Reject changes to visualc and associated templates. Mbed Crypto
doesn't need additional logic to handle submodule-sourced headers.
- Avoid adding fuzzers from Mbed TLS. The only relevant fuzzers are the
privkey and pubkey fuzzers, but non-trivial work would be required to
integrate those into Mbed Crypto (more than is comfortable in a merge
commit).
- Reject addition of Docker wrappers for compat.sh and ssl-opt.sh, as
those are not present in Mbed Crypto.
- Remove calls to SSL-related scripts from basic-in-docker.sh
Fix test errors by performing the following:
- Avoid using a link that Doxygen can't seem to resolve in Mbed Crypto,
but can resolve in Mbed TLS. In documentation for
MBEDTLS_CHECK_PARAMS, don't attempt to link to MBEDTLS_PARAM_FAILED.
* origin/development: (339 commits)
Do not build fuzz on windows
No booleans and import config
Removing space before opening parenthesis
Style corrections
Syntax fix
Fixes warnings from MSVC
Add a linker flag to enable gcov in basic-build-test.sh
Update crypto submodule to a revision with the HAVEGE header changes
Test with MBEDTLS_ECP_RESTARTABLE
Allow TODO in code
Use the docstring in the command line help
Split _abi_compliance_command into smaller functions
Record the commits that were compared
Document how to build the typical argument for -s
Allow running /somewhere/else/path/to/abi_check.py
tests: Limit each log to 10 GiB
Warn if VLAs are used
Remove redundant compiler flag
Consistently spell -Wextra
Fix parsing issue when int parameter is in base 16
...
* origin/development: (36 commits)
Do not build fuzz on windows
No booleans and import config
Removing space before opening parenthesis
Style corrections
Syntax fix
Fixes warnings from MSVC
Add a linker flag to enable gcov in basic-build-test.sh
tests: Limit each log to 10 GiB
Fix parsing issue when int parameter is in base 16
checks MBEDTLS_PEM_PARSE_C
Restore programs/fuzz/Makefile after in-tree cmake
Move fuzz directory to programs
Documentation for corpus generation
Restore tests/fuzz/Makefile after in-tree cmake
Adding ifdefs to avoid warnings for unused globals
Adds LDFLAGS fsanitize=address
Refactor receive_uint32()
Refactor get_byte function
Make the script portable to both pythons
Update the test encoding to support python3
...
* origin/pr/1622: (29 commits)
Do not build fuzz on windows
No booleans and import config
Removing space before opening parenthesis
Style corrections
Syntax fix
Fixes warnings from MSVC
Add a linker flag to enable gcov in basic-build-test.sh
checks MBEDTLS_PEM_PARSE_C
Restore programs/fuzz/Makefile after in-tree cmake
Move fuzz directory to programs
Documentation for corpus generation
Restore tests/fuzz/Makefile after in-tree cmake
Adding ifdefs to avoid warnings for unused globals
Adds LDFLAGS fsanitize=address
Ignore compiled object files and executables
Also clean the fuzz subdirectory
copyediting README.md
Protecting client/server fuzz targts with ifdefs
Makefile support 1
Fuzz README and direct compilation
...
* origin/development: (33 commits)
Test with MBEDTLS_ECP_RESTARTABLE
Allow TODO in code
Use the docstring in the command line help
Split _abi_compliance_command into smaller functions
Record the commits that were compared
Document how to build the typical argument for -s
Allow running /somewhere/else/path/to/abi_check.py
Warn if VLAs are used
Remove redundant compiler flag
Consistently spell -Wextra
Update Mbed Crypto to contain mbed-crypto#152
Improve compatibility with firewalled networks
Dockerfile: apt -> apt-get
Change Docker container to bionic
Clean up file prologue comments
Add docker-based test scripts
ChangeLog: Add ChangeLog entry for #2681
Allow declarations after statements
CMake: Add a subdirectory build regression test
README: Enable builds as a CMake subproject
...
We accidentally disabled testing with MBEDTLS_ECP_RESTARTABLE. Re-enable
testing with restartable ECP when MBEDTLS_USE_PSA_CRYPTO is not set.
Fixes 971dea3745 ("Enable USE_PSA_CRYPTO with config.pl full")
Secure element support has its own source file, and in addition
requires many hooks in other files. This is a nontrivial amount of
code, so make it optional (but default on).
* restricted/pr/573:
Remove redundant config.pl call
Add a test for signing content with a long ECDSA key
Add documentation notes about the required size of the signature buffers
Add missing MBEDTLS_ECP_C dependencies in check_config.h
Change size of preallocated buffer for pk_sign() calls
* origin/pr/2697:
Update crypto submodule
Add all.sh component that exercises invalid_param checks
Remove mbedtls_param_failed from programs
Make it easier to define MBEDTLS_PARAM_FAILED as assert
Make test suites compatible with #include <assert.h>
Pass -m32 to the linker as well
Don't systematically rebuild programs
With the change to the full config, there were no longer any tests
that exercise invalid-parameter behavior. The test suite exercises
invalid-parameter behavior by calling TEST_INVALID_PARAM and friends,
relying on the test suite's mbedtls_check_param function. This
function is only enabled if MBEDTLS_CHECK_PARAMS is defined but not
MBEDTLS_CHECK_PARAMS_ASSERT.
Add a component to all.sh that enables MBEDTLS_CHECK_PARAMS but
disables MBEDTLS_CHECK_PARAMS_ASSERT and doesn't define
MBEDTLS_PARAM_FAILED. This way, the xxx_invalid_param() tests do run.
Since sample programs don't provide a mbedtls_check_param function,
this component doesn't build the sample programs.
* origin/pr/2260:
Update crypto submodule
Remove heading spaces in tests/data_files/Makefile
Re-generate library/certs.c from script
Add new line at the end of test-ca2.key.enc
Use strict syntax to annotate origin of test data in certs.c
Add run to all.sh exercising !MBEDTLS_PEM_PARSE_C + !MBEDTLS_FS_IO
Allow DHM self test to run without MBEDTLS_PEM_PARSE_C
ssl-opt.sh: Auto-skip tests that use files if MBEDTLS_FS_IO unset
Document origin of hardcoded certificates in library/certs.c
Adapt ChangeLog
Rename server1.der to server1.crt.der
Add DER encoded files to git tree
Add build instructions to generate DER versions of CRTs and keys
Document "none" value for ca_path/ca_file in ssl_client2/ssl_server2
ssl_server2: Skip CA setup if `ca_path` or `ca_file` argument "none"
ssl_client2: Skip CA setup if `ca_path` or `ca_file` argument "none"
Correct white spaces in ssl_server2 and ssl_client2
Adapt ssl_client2 to parse DER encoded test CRTs if PEM is disabled
Adapt ssl_server2 to parse DER encoded test CRTs if PEM is disabled
Due to the way the current PK API works, it may have not been clear
for the library clients, how big output buffers they should pass
to the signing functions. Depending on the key type they depend on
MPI or EC specific compile-time constants.
Inside the library, there were places, where it was assumed that
the MPI size will always be enough, even for ECDSA signatures.
However, for very small sizes of the MBEDTLS_MPI_MAX_SIZE and
sufficiently large key, the EC signature could exceed the MPI size
and cause a stack overflow.
This test establishes both conditions -- small MPI size and the use
of a long ECDSA key -- and attempts to sign an arbitrary file.
This can cause a stack overvlow if the signature buffers are not
big enough, therefore the test is performed for an ASan build.
For unit tests and sample programs, CFLAGS=-m32 is enough to get a
32-bit build, because these programs are all compiled directly
from *.c to the executable in one shot. But with makefile rules that
first build object files and then link them, LDFLAGS=-m32 is also
needed.
When testing a configuration where no ciphersuites have MAC, via
component_test_when_no_ciphersuites_have_mac(), perform a targeted test
of only encrypt-then-MAC tests within ssl-opt.sh.
When MBEDTLS_SSL_ENCRYPT_THEN_MAC is enabled, but not
MBEDTLS_SSL_SOME_MODES_USE_MAC, mbedtls_ssl_derive_keys() and
build_transforms() will attempt to use a non-existent `encrypt_then_mac`
field in the ssl_transform.
Compile [ 93.7%]: ssl_tls.c
[Error] ssl_tls.c@865,14: 'mbedtls_ssl_transform {aka struct mbedtls_ssl_transform}' ha
s no member named 'encrypt_then_mac'
[ERROR] ./mbed-os/features/mbedtls/src/ssl_tls.c: In function 'mbedtls_ssl_derive_keys'
:
./mbed-os/features/mbedtls/src/ssl_tls.c:865:14: error: 'mbedtls_ssl_transform {aka str
uct mbedtls_ssl_transform}' has no member named 'encrypt_then_mac'
transform->encrypt_then_mac = session->encrypt_then_mac;
^~
Change mbedtls_ssl_derive_keys() and build_transforms() to only access
`encrypt_then_mac` if `encrypt_then_mac` is actually present.
Add a regression test to detect when we have regressions with
configurations that do not include any MAC ciphersuites.
Fixes d56ed2491b ("Reduce size of `ssl_transform` if no MAC ciphersuite is enabled")
* origin/pr/2403: (24 commits)
crypto: Update to Mbed Crypto 8907b019e7
Create seedfile before running tests
crypto: Update to Mbed Crypto 81f9539037
ssl_cli.c : add explicit casting to unsigned char
Generating visualc files - let Mbed TLS take precedence over crypto
Add a link to the seedfile for out-of-tree cmake builds
Adjust visual studio file generation to always use the crypto submodule
all.sh: unparallelize mingw tests
all.sh - disable parallelization for shared target tests
config.pl: disable PSA_ITS_FILE and PSA_CRYPTO_STORAGE for baremetal
all.sh: unset crypto storage define in a psa full config cmake asan test
all.sh: unset FS_IO-dependent defines for tests that do not have it
curves.pl - change test script to not depend on the implementation
Export the submodule flag to sub-cmakes
Disable MBEDTLS_ECP_RESTARTABLE in full config
Export the submodule flag to sub-makes
Force the usage of crypto submodule
Fix crypto submodule usage in Makefile
Documentation rewording
Typo fixes in documentation
...
Sometimes, when building the shared target with crypto submodule, one could
get an "No rule to make target '../crypto/library/libmbedcrypto.so'" error.
This is due to two reasons - building in parallel and (probably) an
incomplete/incorrect list of dependencies for certain targets. The proposed
solution is to disable parallel builds with crypto submodule for now.
An issue has been raised here: https://github.com/ARMmbed/mbedtls/issues/2634
Sometimes, when building the shared target with crypto submodule, one could
get an "No rule to make target '../crypto/library/libmbedcrypto.so'" error.
This is due to two reasons - building in parallel and (probably) an
incomplete/incorrect list of dependencies for certain targets. The proposed
solution is to disable parallel builds with crypto submodule for now.
An issue has been raised here: https://github.com/ARMmbed/mbedtls/issues/2634
Previously it was disabled as too experimental, which no longer holds. Also,
this option introduces new APIs, so it's not only about an internal
alternative (as the comment in config.pl used to state) - people who request a
full config should get all of the available APIs.
Adapt all.sh: now all builds with full config will also test this option, and
builds with the default config will test without it. Just to be sure, let's
have a build with full config minus this option.
Update documentation of MBEDTLS_USE_PSA_CRYPTO to reflect the status of the
new APIs it enables in Mbed TLS and why they're still opt-in.
Also enable it in scripts/config.pl full, as well as two storage options that
were only blacklisted from full config because they depended on
MBEDTLS_PSA_CRYPTO_C.
Adapt tests in all.sh:
- tests with submodule enabled (default) no longer need to enable it
explicitly, and no longer need runtime tests, as those are now handled by
all other test cases in this script
- tests with submodule disabled (old default) now need to disable it
explicitly, and execute some runtime tests, as those are no longer tested
anywhere else in this script
Adapt documentation in Readme: remove the section "building with submodule"
and replace it with a new section before the other building sections.
Purposefully don't document how to build not from the submodule, as that
option is going away soon.
Resolve merge conflicts by performing the following actions:
- Reject changes to deleted files.
- Reject changes to generate_errors.pl and generate_visualc_files.pl.
Don't add an 'include-crypto' option which would attempt to use the
non-existent crypto submodule.
- list-identifiers.sh had the `--internal` option added to it, which
lists identifiers only in internal headers. Add PSA-specific internal
headers to list-identifiers.sh.
* origin/development: (40 commits)
Document the scripts behaviour further
Use check_output instead of Popen
all.sh: Require i686-w64-mingw32-gcc version >= 6
generate_visualc_files.pl: add mbedtls source shadowing by crypto
generate_errors.pl: refactor and simplify the code
Start unused variable with underscore
Correct documentation
generate_errors.pl: typo fix
revert changes to generate_features.pl and generate_query_config.pl
Check that the report directory is a directory
Use namespaces instead of full classes
Fix pylint issues
Don't put abi dumps in subfolders
Add verbose switch to silence all output except the final report
Fetch the remote crypto branch, rather than cloning it
Prefix internal functions with underscore
Add RepoVersion class to make handling of many arguments easier
Reduce indentation levels
Improve documentation
Use optional arguments for setting repositories
...
Remove TLS and NET options from config files and scripts.
Note that this fails check-names.sh because options that TLS and NET
files use are no longer present in config.h.
Merge Mbed TLS at f790a6cbee into Mbed Crypto.
Resolve conflicts by performing the following:
- Reject changes to README.md
- Don't add crypto as a submodule
- Remove test/ssl_cert_test from programs/Makefile
- Add cipher.nist_kw test to tests/CMakeLists.txt
- Reject removal of crypto-specific all.sh tests
- Reject update to SSL-specific portion of component_test_valgrind
in all.sh
- Reject addition of ssl-opt.sh testing to component_test_m32_o1 in
all.sh
* tls/development: (87 commits)
Call mbedtls_cipher_free() to reset a cipher context
Don't call mbedtls_cipher_setkey twice
Update crypto submodule
Minor fixes in get certificate policies oid test
Add certificate policy oid x509 extension
cpp_dummy_build: Add missing header psa_util.h
Clarify comment mangled by an earlier refactoring
Add an "out-of-box" component
Run ssl-opt.sh on 32-bit runtime
Don't use debug level 1 for informational messages
Skip uncritical unsupported extensions
Give credit to OSS-Fuzz for #2404
all.sh: remove component_test_new_ecdh_context
Remove crypto-only related components from all.sh
Remove ssl_cert_test sample app
Make CRT callback tests more robust
Rename constant in client2.c
Document and test flags in x509_verify
Fix style issues and a typo
Fix a rebase error
...
Run ssl-opt.sh on x86_32 with ASan. This may detect bugs that only
show up on 32-bit platforms, for example due to size_t overflow.
For this component, turn off some memory management features that are
not useful, potentially slow, and may reduce ASan's effectiveness at
catching buffer overflows.
* origin/pr/2464:
Allow main() to lack a docstring.
Silence pylint
check-files.py: readability improvement in permission check
check-files.py: use class fields for class-wide constants
check-files.py: clean up class structure
abi_check.py: Document more methods
check-files.py: document some classes and methods
Fix pylint errors going uncaught
Call pylint3, not pylint
New, documented pylint configuration
Resolve conflicts actions:
- Reject path changes to config.h
- Reject submodule-related changes in build scripts (Makefile,
CMakeLists.txt)
- Add oid test suite to list of tests in tests/CMakeLists.txt,
rejecting any test filtering related changes (which TLS uses to avoid
duplicating crypto tests)
- Add legacy ECDH test to all.sh without including
all.sh tests that depend on SSL
Ensure this merge passes tests by auto-generating query_config.c, adding
MBEDTLS_ECDH_LEGACY_CONTEXT to it.
* restricted/pr/552:
Fix mbedtls_ecdh_get_params with new ECDH context
Test undefining MBEDTLS_ECDH_LEGACY_CONTEXT in all.sh
Define MBEDTLS_ECDH_LEGACY_CONTEXT in config.h
Add changelog entry for mbedtls_ecdh_get_params robustness
Fix ecdh_get_params with mismatching group
Add test case for ecdh_get_params with mismatching group
Add test case for ecdh_calc_secret
Fix typo in documentation
Now that we have ITS over files, we no longer need a direct backend
for key storage over files. Remove psa_crypto_storage_file and its
tests.
Switch MBEDTLS_PSA_CRYPTO_STORAGE_ITS_C and MBEDTLS_PSA_ITS_FILE_C on
by default. This preserves functionality and test coverage in the
default configuration, but forgets any key previously stored using the
file backend.
* origin/development: (113 commits)
Update query_config.c
Fix failure in SSLv3 per-version suites test
Adjust DES exclude lists in test scripts
Clarify 3DES changes in ChangeLog
Fix documentation for 3DES removal
Exclude 3DES tests in test scripts
Fix wording of ChangeLog and 3DES_REMOVE docs
Reduce priority of 3DES ciphersuites
Fix unused variable warning in ssl_parse_certificate_coordinate()
Update the crypto submodule to a78c958
Fix ChangeLog entry to correct release version
Fix typo in x509write test data
Add ChangeLog entry for unused bits in bitstrings
Improve docs for named bitstrings and their usage
Add tests for (named) bitstring to suite_asn1write
Add new function mbedtls_asn1_write_named_bitstring()
Add missing compile time guard in ssl_client2
Update programs/ssl/query_config.c
ssl_client2: Reset peer CRT info string on reconnect
Add further debug statements on assertion failures
...
* public/pr/2421: (68 commits)
Fix unused variable warning in ssl_parse_certificate_coordinate()
Add missing compile time guard in ssl_client2
Update programs/ssl/query_config.c
ssl_client2: Reset peer CRT info string on reconnect
Add further debug statements on assertion failures
Fix typo in documentation of ssl_parse_certificate_chain()
Add debug output in case of assertion failure
Fix typo in SSL ticket documentation
Add config sanity check for !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE
ssl_client2: Zeroize peer CRT info buffer when reconnecting
Reintroduce numerous ssl-opt.sh tests if !MBEDTLS_SSL_KEEP_PEER_CERT
ssl_client2: Extract peer CRT info from verification callback
Improve documentation of mbedtls_ssl_get_peer_cert()
Improve documentation of MBEDTLS_SSL_KEEP_PEER_CERTIFICATE
Fix indentation of Doxygen comment in ssl_internal.h
Set peer CRT length only after successful allocation
Remove question in comment about verify flags on cli vs. server
Remove misleading and redundant guard around restartable ECC field
Add test for !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE to all.sh
Free peer CRT chain immediately after verifying it
...
Additional work done as part of merge:
- Run ./tests/scripts/check-generated-files.sh and check in the
resulting changes to programs/ssl/query_config.c
Make check-python-files.sh run pylint on all *.py files (in
directories where they are known to be present), rather than list
files explicitly.
Fix a bug whereby the return status of check-python-files.sh was only
based on the last file passing, i.e. errors in other files were
effectively ignored.
Make check-python-files.sh run pylint unconditionally. Since pylint3
is not critical, make all.sh to skip running check-python-files.sh if
pylint3 is not available.
Resolve conflicts by performing the following.
- Take the upstream Mbed TLS ChangeLog verbatim.
- Reject changes to Makefiles and CMake that are related to using Mbed
Crypto as a submodule. It doesn't make sense to use Mbed Crypto as a
submodule of itself.
- Reject README changes, as Mbed Crypto has its own, different README.
- Reject PSA-related changes to config.h. We don't want to disable the
availability of the PSA Crypto API by default in the Mbed Crypto
config.h.
- Don't inadvertently revert dead code removal in
mbedtls_cipher_write_tag() which was added in f2a7529403 ("Fix
double return statement in cipher.c")
- Where Mbed Crypto already had some MBEDTLS_USE_PSA_CRYPTO code (from
past companion PRs) take the latest version from Mbed TLS which
includes integration with MBEDTLS_CHECK_PARAMS.
- Update the version of the shared library files to match what's
currently present in Mbed TLS.
- Reject removal of testing with PSA from config full tests.
- Resolve conflicts in test tests/suites/helpers.function, where both
Mbed Crypto and Mbed TLS both added documentation for TEST_ASSERT.
Combine text from both documentation efforts.
- Reject adding a submodule of ourselves.
- Reject addition of submodule tests in all.sh.
- Reject addition of submodule to library path in
tests/scripts/run-test-suites.pl.
- Avoid using USE_CRYPTO_SUBMODULE=1 in
component_test_use_psa_crypto_full_cmake_asan() in all.sh.
When using PSA with MBEDTLS_ENTROPY_NV_SEED, some test suites
require the seed file for PSA initialization, which was normally generated
later, when entropy tests were run. This change creates an initial seedfile
in all.sh.
Set the CMake-observed variable `CTEST_OUTPUT_ON_FAILURE`, so that when
a "make test" run by CMake fails, verbose test output about the detail
of failure is available.
When all.sh invokes check_headers_in_cpp, a backup config.h exists. This
causes a stray difference vs cpp_dummy_build.cpp. Fix by only collecting
the *.h files in include/mbedtls.
Change-Id: Ifd415027e856858579a6699538f06fc49c793570
Additional changes to temporarily enable running tests:
ssl_srv.c and test_suite_ecdh use mbedtls_ecp_group_load instead of
mbedtls_ecdh_setup
test_suite_ctr_drbg uses mbedtls_ctr_drbg_update instead of
mbedtls_ctr_drbg_update_ret
Wildcard patterns now work with command line COMPONENT arguments
without --except as well as with. You can now run e.g.
`all.sh "check_*` to run all the sanity checks.
After backing up and restoring config.h, `git diff-files` may report
it as potentially-changed because it isn't sure whether the index is
up to date. Use `git diff` instead: it actually reads the file.
Only look for armcc if component_build_armcc is to be executed,
instead of requiring the option --no-armcc.
You can still pass --no-armcc, but it's no longer required when
listing components to run. With no list of components or an exclude
list on the command line, --no-armcc is equivalent to having
build_armcc in the exclude list.
Build the list of components to run in $RUN_COMPONENTS as part of
command line parsing. After parsing the command line, it no longer
matters how this list was built.
Extract the list of available components by looking for definitions of
functions called component_xxx. The previous code explicitly listed
all components in run_all_components, which opened the risk of
forgetting to list a component there.
Add a conditional execution facility: if a function support_xxx exists
and returns false then component_xxx is not executed (except when the
command line lists an explicit set of components to execute).
Wildcard patterns now work with command line COMPONENT arguments
without --except as well as with. You can now run e.g.
`all.sh "check_*` to run all the sanity checks.
