In the Linux kernel, the BUG() macro causes an instant panic. Our
BUG() macro is different, however: it generates a nonfatal assertion
failure, and is usable as an expression.
Additionally, this patch tells util_bug.h to make all assertion
failures into fatal conditions when we're building with a static
analysis tool, so that the analysis tool can look for instances
where they're reachable.
Fixes bug 23030.
Wow, it sure seems like some compilers can't implement isnan() and
friends in a way that pleases themselves!
Fixes bug 22915. Bug trigged by 0.2.8.1-alpha and later; caused by
clang 4.
* CHANGE .travis.yml so that commands for different purposes (e.g. getting
dependencies, building, testing) are in separate config lines and sections.
* CHANGE .travis.yml to use their mechanism for installing dependencies via
apt. [0] This also allows us to not need sudo (the "sudo: false" line).
* CHANGE Travis CI tests (the "script:" section) to build and run tests in the
same manner as Jenkins (i.e. with --enable-fatal-warnings and
--disable-silent-rules and run `make check`).
* ADD Travis configuration to do all the target builds with both GCC and clang.
* ADD make flags to build with both of the cores available.
* ADD notifications for IRC, and configure email notifications (to the author
of the commit) only if the branch was previously building successfully and
the latest commit broke it.
* ADD the ability to run the Travis build matrix for OSX as well, but leave it
commented out by default (because it takes roughly ten times longer, due to a
shortage of OSX build machines).
* ADD Travis config option to cancel/fail the build early if one target has
already failed ("fast_finish: true").
* ADD comments to describe what our Travis config is doing and why it is
configured that way.
[0]: https://docs.travis-ci.com/user/installing-dependencies/#Installing-Packages-on-Container-Based-Infrastructure)
Installs dependencies (including rust) and runs the existing test suite.
TODO: Introduce build matrix utilizing the rust toolchain to run test
suites both with and without the rust components.
Clang didn't like that we were passing uint64_t values to an API
that wanted uint32_t. GCC has either not cared, or has figured out
that the values in question were safe to cast to uint32_t.
Fixes bug22916; bugfix on 0.2.7.2-alpha.
The 22081 fix disabled -Wfloat-conversion, but -Wfloat-conversion
didn't exist in every relevant mingw; it was added in GCC 4.9.x some
time, if the documentation can be trusted.
Bug not in any released version of tor.
We just have to suppress these warnings: Mingw's math.h uses gcc's
__builtin_choose_expr() facility to declare isnan, isfinite, and
signbit. But as implemented in at least some versions of gcc,
__builtin_choose_expr() can generate type warnings even from
branches that are not taken.
Fixes bug 22801; bugfix on 0.2.8.1-alpha.
