Oz is allowed to make size optimizations that make the code slower,
where Os isn't. Optimize with Oz, as we care more about having a small
code footprint than having fast code.
Only effective together with --rom, makes two changes:
- abort in case of build warnings
- skip writing statistics
The goal is to make sure we build cleanly in the configuration used for
measuring code size, with all the compilers we use, both because we care about
that configuration and those compilers, and because any warnings would cast a
shadow on the code size measurements.
Currently the build fails with armc5 due to a pre-existing warning in PK, this
will be fixed in the next commit.
The next commit will also add an all.sh component to make sure we have no
regression in the future. (Which is the motivation for --check skipping
statistics: an all.sh component should probably not leave files around.)
While at it, fix two things:
1. The call to gcc --version was redundant with the echo line below
2. WARNING_CFLAGS shouldn't be overriden with armclang, as it would remove the
-Wall -Wextra and any directory-specific warning (such as
-Wdeclaration-after-statement in library). It's meant to be overriden only
with compilers that don't accept the default value (namely armc5 here).
A positive option looks better, but comes with the following compatibility
issue: people using a custom config.h that is not based on the default
config.h and need TLS support would need to manually change their config in
order to still get TLS.
Work around that by making the public option negative. Internally the positive
option is used, though.
In the future (when preparing the next major version), we might want to switch
back to a positive option as this would be more consistent with other options
we have.
This commit modifies `scripts/baremetal.sh` to print the total code-size
of the SSL, X.509 and Crypto libraries are runs of
- ./scripts/baremetal.sh --rom --gcc
- ./scripts/baremetal.sh --rom --armc5
- ./scripts/baremetal.sh --rom --armc6
This eases quick investigation of the effect of changes on code-size.
* mbedtls-2.16:
test: Always use `make clean` by itself
list-symbols.sh: if the build fails, print the build transcript
Document "check-names.sh -v"
all.sh: invoke check-names.sh in print-trace-on-exit mode
Print a command trace if the check-names.sh exits unexpectedly
Only use submodule if present
Update change log
Reword ssl_conf_max_frag_len documentation for clarity
Ignore more generated files: seedfile, apidoc
Improve .gitignore grouping and documentation
Generate tags for Vi, for Emacs and with Global
While the abi-checking script handled comparing only the modules
that were shared between the old and new versions correctly, the
cleanup of the abi dumps only removed what was shared. Change the
cleanup logic to remove all abi dumps instead.
Enabling the USE_CRYPTO_SUBMODULE option causes problems if the
crypto submodule isn't present. For example, when building
mbed-crypto as a submodule, it should use error.c from the parent
project if USE_CRYPTO_SUBMODULE is set. However if the parent
project isn't present, then the build will fail. Only enable it
if the submodule actually exists.
We called in tinycrypt in the file names, but uecc in config.h, all.sh and
other places, which could be confusing. Just use tinycrypt everywhere because
that's the name of the project and repo where we took the files.
The changes were made using the following commands (with GNU sed and zsh):
sed -i 's/uecc/tinycrypt/g' **/*.[ch] tests/scripts/all.sh
sed -i 's/MBEDTLS_USE_UECC/MBEDTLS_USE_TINYCRYPT/g' **/*.[ch] tests/scripts/all.sh scripts/config.pl
* public/mbedtls-2.16: (40 commits)
Clarify comment mangled by an earlier refactoring
Add an "out-of-box" component
Run ssl-opt.sh on 32-bit runtime
Fix typo in data_file generator code
Give credit to OSS-Fuzz for #2404
Remove ssl_cert_test sample app
Fix the proxy seed in Travis runs
Update library version to 2.16.1
Fix errors in AEAD test function
x509.c: Fix potential memory leak in X.509 self test
Remove Circle CI script
Fix ChangeLog entry ordering
Fix typo
Add non-regression test for buffer overflow
Improve documentation of mbedtls_mpi_write_string()
Adapt ChangeLog
Fix 1-byte buffer overflow in mbedtls_mpi_write_string()
Change Perl to Python in test builds
Fix default port number information
Silence pylint
...
There are a number of arguments being passed around, nearly all of
which are duplicated between the old and new versions. Moving these
into a separate class should hopefully make it simpler to follow
what is being done.
As before with wanting to compare revisions across different
repositories, the ability to select the crypto submodule from a
different repository is useful.
We may wish to compare ABI/API between Mbed TLS and Mbed Crypto,
which will cause issues as not all .so files are shared. Only
compare .so files which both libraries have.
As going forward we will have Crypto in a submodule, we will need to
be able to check ABI compatibility between versions using different
submodule versions. For TLS versions that support the submodule, we
will always build using the submodule.
If the Crypto submodule is used, libmbedcrypto.so is not in the main
library folder, but in crypto/library instead. Given this, the script
searches for *.so files and notes their path, in order to create the
dumps correctly.
By default abi-compliance-checker will check the entire ABI/API.
There are internal identifiers that we do not promise compatibility
for, so we want the ability to skip them when checking the ABI/API.
Without a "--detach" option, git worktree will refuse to checkout a branch
that's already checked out. This makes the abi_check.py script not very
useful for checking the currently checked out branch, as git will error
that the branch is already checked out. Add the "--detach" option to check
out the new temporary worktree in detached head mode. This is acceptable
because we aren't planning on working on the branch and just want a
checkout to do ABI checking from.
* origin/pr/2470:
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
So far, `baremetal.sh --ram --stack` ran `callgrind` to extract
a call stack in an example run of ssl_client2 and ssl_server2.
This, however, needs to be complemented with per-function stack
usage to be able to extract the maximum stack usage.
This commit adds `-fstack-usage` to the CFLAGS used when building
the library in `baremetal.sh --ram` runs, which generates *.su
files indicating the stack usage of individual functions.
