Allow-list all Python code in tree for use with the black linter, and re-format all code in-tree accordingly.
To produce this patch I did all of the following:
1. Make changes to tools/lint/black.yml to remove include: stanza and update list of source extensions.
2. Run ./mach lint --linter black --fix
3. Make some ad-hoc manual updates to python/mozbuild/mozbuild/test/configure/test_configure.py -- it has some hard-coded line numbers that the reformat breaks.
4. Make some ad-hoc manual updates to `testing/marionette/client/setup.py`, `testing/marionette/harness/setup.py`, and `testing/firefox-ui/harness/setup.py`, which have hard-coded regexes that break after the reformat.
5. Add a set of exclusions to black.yml. These will be deleted in a follow-up bug (1672023).
# ignore-this-changeset
Differential Revision: https://phabricator.services.mozilla.com/D94045
Allow-list all Python code in tree for use with the black linter, and re-format all code in-tree accordingly.
To produce this patch I did all of the following:
1. Make changes to tools/lint/black.yml to remove include: stanza and update list of source extensions.
2. Run ./mach lint --linter black --fix
3. Make some ad-hoc manual updates to python/mozbuild/mozbuild/test/configure/test_configure.py -- it has some hard-coded line numbers that the reformat breaks.
4. Add a set of exclusions to black.yml. These will be deleted in a follow-up bug (1672023).
# ignore-this-changeset
Differential Revision: https://phabricator.services.mozilla.com/D94045
LLVM 11 introduces a hard requirement for SDK 10.12 in order to build for Mac. We want to keep building older LLVMs with 10.11 though, so this patch adds some flexibility so that build-clang can make use of whatever SDK package a particular task pulls from tooltool (but still requesting a deployment target of 10.11).
Differential Revision: https://phabricator.services.mozilla.com/D82621
clang/LLVM's build scripts can turn these on on their own, but explicitly
setting what we want is better than guessing. The change is not huge, maybe
~2-3% on the major shared libraries (`libclang`, `libclang-cpp`, `libLLVM`),
about 1% on the overall `.tar.zst` size, but every little bit counts, right?
Differential Revision: https://phabricator.services.mozilla.com/D82896
Source history does not give any good clues about why this line was added in the first place. In any case, LLVM trunk currently has build bustage when threads are disabled. We could work around the bustage and/or wait for a fix, but it seems like threads are a good thing to have in general nowadays. Maybe this could help with LTO build times.
Differential Revision: https://phabricator.services.mozilla.com/D82447
This adds the ability to do four-stage PGO builds. This was surprisingly straightforward thanks to PGO being a well-supported scenario in LLVM's cmake.
For reference, the stages are:
stage1: Initial build with gcc
stage2: Instrumented build using stage1
stage3: Train by using the instrumented stage2 to build the clang tree
stage4: Optimize using the stage3 compiler and the profdata created with it
Differential Revision: https://phabricator.services.mozilla.com/D69080
Separating out the mechanical/"boring" changes to make the next patch more clear. This patch adds the ability to build a fourth stage that for now doesn't do anything special.
I changed to using >= to make it more obvious that e.g. "here is what's going to happen for stage 2" -- the off-by-one was too hard on my brain.
Differential Revision: https://phabricator.services.mozilla.com/D69079
This adds the ability to do four-stage PGO builds. This was surprisingly straightforward thanks to PGO being a well-supported scenario in LLVM's cmake.
For reference, the stages are:
stage1: Initial build with gcc
stage2: Instrumented build using stage1
stage3: Train by using the instrumented stage2 to build the clang tree
stage4: Optimize using the stage3 compiler and the profdata created with it
Differential Revision: https://phabricator.services.mozilla.com/D69080
Separating out the mechanical/"boring" changes to make the next patch more clear. This patch adds the ability to build a fourth stage that for now doesn't do anything special.
I changed to using >= to make it more obvious that e.g. "here is what's going to happen for stage 2" -- the off-by-one was too hard on my brain.
Differential Revision: https://phabricator.services.mozilla.com/D69079
This is required for llvm-mt, which building winchecksec will require.
We do a dummy change to build-clang.sh so as to change the toolchain
index hash.
Differential Revision: https://phabricator.services.mozilla.com/D68153
Best as I can tell, this was a longstanding typo. This went unnoticed because cmake didn't do any interesting `find`s -- until recently in LLVM 10, where zlib is now queried via `find_package`.
Differential Revision: https://phabricator.services.mozilla.com/D62829
Since we've upgraded to clang 9, clang-format changed and now uses dynamic libraries
for the clang tooling lib that it leverages.
Differential Revision: https://phabricator.services.mozilla.com/D47265
Otherwise we wind up with clownshoes like:
```
froydnj@hawkeye:/opt/build/froydnj/tmp/clang$ ls -l lib/libstdc++.so*
-rwxr-xr-x 1 froydnj froydnj 11633720 Aug 6 20:44 lib/libstdc++.so
-rwxr-xr-x 1 froydnj froydnj 11633720 Aug 6 20:44 lib/libstdc++.so.6
-rwxr-xr-x 1 froydnj froydnj 11633720 Aug 6 20:44 lib/libstdc++.so.6.0.24
```
and have duplicate copies of shared libraries in our toolchain packages,
which are not exactly small.
Differential Revision: https://phabricator.services.mozilla.com/D41368
What this means is that the sources for clang/llvm are downloaded
separately from the toolchain build (which also means we finally only
download a given version of clang once for all platforms).
In turn, this means the build-clang.py script needs to start with an
existing llvm-project tree, and we choose to make build-clang.py expect
that it's run from the llvm-project root directory.
This also means we don't need to download git for the windows toolchain
task.
Differential Revision: https://phabricator.services.mozilla.com/D40402
Bug 1546136 wrapped subprocess execution output to capture cmake's, but
at the detriment of other output, and hiding everything unless an error
occurs.
So instead, we only capture the output when the called process is cmake,
and even when it is cmake, we don't pipe stderr at all (since we only
care about cmake's stdout) and we print out stdout as it comes in rather
than later. We then later check the output for hints at the more useful
cmake logs and dump them.
While here, add verbosity to ninja output (which gives the command
lines, rather than generic "Building foo.o" output).
Differential Revision: https://phabricator.services.mozilla.com/D40142
Our current OS X builds use `--target=x86_64-darwin11` (which
corresponds to OS X 10.7). This target is problematic for two reasons:
* We're actually targeting for OS X 10.9 (`MACOSX_DEPLOYMENT_TARGET`);
* It's slightly different from the default Rust target.
Let's address these problems in reverse order: differences from the Rust
target are bad, because the `--target` we provide to `clang` and the
Rust target find their way into LLVM bitcode files and the linker will
refuse to link together bitcode files that have incompatible targets.
Why are the two incompatible? The current `--target` doesn't have a
"vendor" in triple-speak, whereas the Rust one has "apple" as the
vendor (`x86_64-apple-darwin`) We therefore need to change the
`--target` we pass to `clang` to have a vendor of "apple".
This need is behind the {init,toolchain}.configure changes,
but it has ramifications elsewhere, because `clang` looks for
`--target`-prefixed build tools. So we have to change the `--target`
for cctools to get the right tool prefixes and we have to change the
`--target` for building clang ourselves so that *those* builds can find
the newly renamed cctools.
Once we've done, that's really enough; we don't *need to address the
first problem: While the `--target` might be `x86_64-apple-darwin11`,
both `clang` and `rustc` will dynamically choose the target triple that
eventually lands in LLVM bitcode files based on
`MACOSX_DEPLOYMENT_TARGET`, which we set in all builds. But the current
target is slightly misleading, and the cctools don't need to be prefixed
with a particular Darwin version, since they work for all Darwin
targets. Let's just drop the "11" from the `--target` and eliminate a
little bit of confusion.
Differential Revision: https://phabricator.services.mozilla.com/D31128
Our current OS X builds use `--target=x86_64-darwin11` (which
corresponds to OS X 10.7). This target is problematic for two reasons:
* We're actually targeting for OS X 10.9 (`MACOSX_DEPLOYMENT_TARGET`);
* It's slightly different from the default Rust target.
Let's address these problems in reverse order: differences from the Rust
target are bad, because the `--target` we provide to `clang` and the
Rust target find their way into LLVM bitcode files and the linker will
refuse to link together bitcode files that have incompatible targets.
Why are the two incompatible? The current `--target` doesn't have a
"vendor" in triple-speak, whereas the Rust one has "apple" as the
vendor (`x86_64-apple-darwin`) We therefore need to change the
`--target` we pass to `clang` to have a vendor of "apple".
This need is behind the {init,toolchain}.configure changes,
but it has ramifications elsewhere, because `clang` looks for
`--target`-prefixed build tools. So we have to change the `--target`
for cctools to get the right tool prefixes and we have to change the
`--target` for building clang ourselves so that *those* builds can find
the newly renamed cctools.
Once we've done, that's really enough; we don't *need to address the
first problem: While the `--target` might be `x86_64-apple-darwin11`,
both `clang` and `rustc` will dynamically choose the target triple that
eventually lands in LLVM bitcode files based on
`MACOSX_DEPLOYMENT_TARGET`, which we set in all builds. But the current
target is slightly misleading, and the cctools don't need to be prefixed
with a particular Darwin version, since they work for all Darwin
targets. Let's just drop the "11" from the `--target` and eliminate a
little bit of confusion.
Differential Revision: https://phabricator.services.mozilla.com/D31128
Our current OS X builds use `--target=x86_64-darwin11` (which
corresponds to OS X 10.7). This target is problematic for two reasons:
* We're actually targeting for OS X 10.9 (`MACOSX_DEPLOYMENT_TARGET`);
* It's slightly different from the default Rust target.
Let's address these problems in reverse order: differences from the Rust
target are bad, because the `--target` we provide to `clang` and the
Rust target find their way into LLVM bitcode files and the linker will
refuse to link together bitcode files that have incompatible targets.
Why are the two incompatible? The current `--target` doesn't have a
"vendor" in triple-speak, whereas the Rust one has "apple" as the
vendor (`x86_64-apple-darwin`) We therefore need to change the
`--target` we pass to `clang` to have a vendor of "apple".
This need is behind the {init,toolchain}.configure changes,
but it has ramifications elsewhere, because `clang` looks for
`--target`-prefixed build tools. So we have to change the `--target`
for cctools to get the right tool prefixes and we have to change the
`--target` for building clang ourselves so that *those* builds can find
the newly renamed cctools.
Once we've done, that's really enough; we don't *need to address the
first problem: While the `--target` might be `x86_64-apple-darwin11`,
both `clang` and `rustc` will dynamically choose the target triple that
eventually lands in LLVM bitcode files based on
`MACOSX_DEPLOYMENT_TARGET`, which we set in all builds. But the current
target is slightly misleading, and the cctools don't need to be prefixed
with a particular Darwin version, since they work for all Darwin
targets. Let's just drop the "11" from the `--target` and eliminate a
little bit of confusion.
Differential Revision: https://phabricator.services.mozilla.com/D31128
