<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html lang="en">
<head>
<meta content="text/html; charset=US-ASCII" http-equiv="Content-Type">
<title>
GitLab
</title>
<style>img {
max-width: 100%; height: auto;
}
</style>
</head>
<body>
<div class="content">
<h3>
Ben Gamari pushed to branch wip/win32-m32
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
</h3>
<h4>
Commits:
</h4>
<ul>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/901bc2208a115e0f8313b3aa9abc76fd05509aaa">901bc220</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-22T12:39:02-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Bump time submodule to 1.11.1
Also bumps directory, Cabal, hpc, time, and unix submodules.
Closes #18847.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/92c0afbf592e71dae3c80cec09b1596df50ff8a9">92c0afbf</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-22T12:39:38-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">hadrian: Dump STG when ticky is enabled
This changes the "ticky" modifier to enable dumping of final STG as this
is generally needed to make sense of the ticky profiles.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d23fef68415ce6587f77e9530cb0571bb90b31cc">d23fef68</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-22T12:39:38-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">hadrian: Introduce notion of flavour transformers
This extends Hadrian's notion of "flavour", as described in #18942.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/179d0becd2ddfa216f7b221df9fc520a352fdbe7">179d0bec</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-22T12:39:38-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">hadrian: Add a viaLlvmBackend modifier
Note that this also slightly changes the semantics of these flavours as
we only use LLVM for >= stage1 builds.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d4d95e51a463e539fceb1c6f191e84adaa337e3b">d4d95e51</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-22T12:39:38-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">hadrian: Add profiled_ghc and no_dynamic_ghc modifiers
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6815603f271484766425ff2e37043b78da2d073c">6815603f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-22T12:39:38-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">hadrian: Drop redundant flavour definitions
Drop the profiled, LLVM, and ThreadSanitizer flavour definitions as
these can now be realized with flavour transformers.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f88f43398217a5f4c2d326555e21fb1417a21db2">f88f4339</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-24T02:43:20-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts: Flush eventlog buffers from flushEventLog
As noted in #18043, flushTrace failed flush anything beyond the writer.
This means that a significant amount of data sitting in capability-local
event buffers may never get flushed, despite the users' pleads for us to
flush.
Fix this by making flushEventLog flush all of the event buffers before
flushing the writer.
Fixes #18043.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7c03cc5010999d0f0f9dfc549984023b3a1f2c8d">7c03cc50</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-24T02:43:55-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Run LLVM job on appropriately-labelled MRs
Namely, those marked with the ~"LLVM backend" label
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9b95d815d718ce671e9e87b8a2eb0534ed5688dd">9b95d815</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-24T02:43:55-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Run LLVM builds on Debian 10
The current Debian 9 image doesn't provide LLVM 7.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2ed3e6c0f179c06828712832d1176519cdfa82a6">2ed3e6c0</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-24T02:43:55-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">CmmToLlvm: Declare signature for memcmp
Otherwise `opt` fails with:
error: use of undefined value '@memcmp$def'
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/635f863be15ad1017daa5f8efb817554d36dbb71">635f863b</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-27T18:19:09+00:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts/m32: Refactor handling of allocator seeding
Previously, in an attempt to reduce fragmentation, each new allocator
would map a region of M32_MAX_PAGES fresh pages to seed itself. However,
this ends up being extremely wasteful since it turns out that we often
use fewer than this. Consequently, these pages end up getting freed
which, ends up fragmenting our address space more than than we would
have if we had naively allocated pages on-demand.
Here we refactor m32 to avoid this waste while achieving the
fragmentation mitigation previously desired. In particular, we move all
page allocation into the global m32_alloc_page, which will pull a page
from the free page pool. If the free page pool is empty we then refill
it by allocating a region of M32_MAP_PAGES and adding them to the pool.
Furthermore, we do away with the initial seeding entirely. That is, the
allocator starts with no active pages: pages are rather allocated on an
as-needed basis.
On the whole this ends up being a pleasingly simple change,
simultaneously making m32 more efficient, more robust, and simpler.
Fixes #18980.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4c747c2870dc93e3a448b507ff82d36abd9f2d93">4c747c28</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-27T18:19:09+00:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts: Introduce mmapAnonForLinker
Previously most of the uses of mmapForLinker were mapping anonymous
memory, resulting in a great deal of unnecessary repetition. Factor this
out into a new helper.
Also fixes a few places where error checking was missing or suboptimal.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/609787061255a551d0f58d4c143230f74b40ccf1">60978706</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-27T18:19:09+00:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts/linker: Introduce munmapForLinker
Consolidates munmap calls to ensure consistent error handling.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/35ab0f104f88e6c2bff7d7cd36e23107fc51f46c">35ab0f10</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-27T18:19:09+00:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts/Linker: Introduce Windows implementations for mmapForLinker, et al.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0bb88f57ac267b267f8f127145ee4bb1d89712c9">0bb88f57</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-27T18:19:09+00:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts/m32: Introduce NEEDS_M32 macro
Instead of relying on RTS_LINKER_USE_MMAP
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f6c843a8da43748f0365fbac1b73c80883b64499">f6c843a8</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-27T18:19:09+00:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts/linker: Use m32 to allocate symbol extras in PEi386
</pre>
</li>
</ul>
<h4>30 changed files:</h4>
<ul>
<li class="file-stats">
<a href="#587d266bb27a4dc3022bbed44dfa19849df3044c">
.gitlab-ci.yml
</a>
</li>
<li class="file-stats">
<a href="#b5ac041c7f79084a7a7626eda4cdadda3457d235">
compiler/GHC/CmmToLlvm/Base.hs
</a>
</li>
<li class="file-stats">
<a href="#0f33fd88c617246c7f89c4477d2d1d24f942df23">
compiler/ghc.cabal.in
</a>
</li>
<li class="file-stats">
<a href="#51d77a90635e9ec3ddfb3918005aecda9cc567c0">
ghc/ghc-bin.cabal.in
</a>
</li>
<li class="file-stats">
<a href="#65d0ee7bb66a1370d9f336158f48ffb0bfb27693">
hadrian/doc/flavours.md
</a>
</li>
<li class="file-stats">
<a href="#2eeb40f0acd6cb433ebe65e34262040b618908a7">
hadrian/hadrian.cabal
</a>
</li>
<li class="file-stats">
<a href="#1655041cfd1add79e4c335c656405ee3eb3bd0dd">
hadrian/src/Flavour.hs
</a>
</li>
<li class="file-stats">
<a href="#704958036ebddd9058fb1367e440b2ea1abb53e9">
hadrian/src/Settings.hs
</a>
</li>
<li class="file-stats">
<a href="#519f09567a853f5fe119cec01e9274324ad2404f">
<span class="deleted-file">
−
hadrian/src/Settings/Flavours/Llvm.hs
</span>
</a>
</li>
<li class="file-stats">
<a href="#dafbbac54c7ce99acda23b0dca02c5302d46def0">
<span class="deleted-file">
−
hadrian/src/Settings/Flavours/Profiled.hs
</span>
</a>
</li>
<li class="file-stats">
<a href="#fbf853844dc48d850085cbef14c0af1e474cb087">
<span class="deleted-file">
−
hadrian/src/Settings/Flavours/ThreadSanitizer.hs
</span>
</a>
</li>
<li class="file-stats">
<a href="#f7bfc5e15e7497f29b41f6df46865c151a07955d">
includes/RtsAPI.h
</a>
</li>
<li class="file-stats">
<a href="#a1d25ba13887eca47ad71301d419574bea4696a0">
includes/rts/EventLogWriter.h
</a>
</li>
<li class="file-stats">
<a href="#2b3a5da6af2421fdb559def8637e7fac0436609f">
libraries/Cabal
</a>
</li>
<li class="file-stats">
<a href="#cbecf35546dee344ca6fb2e73c7515f07e868d0f">
libraries/base/Debug/Trace.hs
</a>
</li>
<li class="file-stats">
<a href="#a76fbf30d162dc25f6f8c990c849b2f61b1e79e0">
libraries/directory
</a>
</li>
<li class="file-stats">
<a href="#1fff7939e439e1a46b51fc3d747b1fd8df7a1822">
libraries/ghc-boot/GHC/Data/ShortText.hs
</a>
</li>
<li class="file-stats">
<a href="#42bcd36e5791e64370e1cb55417c82c34538bb7a">
libraries/hpc
</a>
</li>
<li class="file-stats">
<a href="#85be39da47a20360dc906ebad4c63f9cfb7363a6">
libraries/time
</a>
</li>
<li class="file-stats">
<a href="#c94f27a74551c6432f819bdfe482f1a46f1a1596">
libraries/unix
</a>
</li>
<li class="file-stats">
<a href="#33249795fee267712d5c3a7ecfa9f2edea260401">
rts/Capability.c
</a>
</li>
<li class="file-stats">
<a href="#62ec5569a8af1e443ae952b393d15b9dd1cea199">
rts/Capability.h
</a>
</li>
<li class="file-stats">
<a href="#044fe9284335a9bfd17546e06c2e5c40a680dd3d">
rts/Linker.c
</a>
</li>
<li class="file-stats">
<a href="#687f0b17315e54a1692de64626391e572ca298e9">
rts/LinkerInternals.h
</a>
</li>
<li class="file-stats">
<a href="#16c842a51a135c8ef2c7c7f94336544868348a3c">
rts/RtsSymbols.c
</a>
</li>
<li class="file-stats">
<a href="#7d6961cb073b9fe3df3a81f0ad5cf36eed293c42">
rts/Schedule.c
</a>
</li>
<li class="file-stats">
<a href="#050d739b5c42d009648d099fb66bae809e83482e">
rts/Trace.c
</a>
</li>
<li class="file-stats">
<a href="#af7520a7c19cb7a894a90a944c97a4ed95f12b78">
rts/Trace.h
</a>
</li>
<li class="file-stats">
<a href="#4bef7d0c5d4ce46744aaacac2800349746d7e44f">
rts/eventlog/EventLog.c
</a>
</li>
<li class="file-stats">
<a href="#76aeecda0541f8b07341c3e7947c02a0cae5b8af">
rts/eventlog/EventLog.h
</a>
</li>
</ul>
<h5>The diff was not included because it is too large.</h5>
</div>
<div class="footer" style="margin-top: 10px;">
<p style="font-size: small; color: #666;">
—
<br>
<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/267c1245823d18567e00663c10c0afd92e5b3977...f6c843a8da43748f0365fbac1b73c80883b64499">View it on GitLab</a>.
<br>
You're receiving this email because of your account on gitlab.haskell.org.
If you'd like to receive fewer emails, you can
adjust your notification settings.
</p>
</div>
</body>
</html>