Previously we only built Linux bindists with hyperlinked sources.

Ensure that deb10-dwarf artifacts are preserved.

(cherry picked from commit a4f50cd8)

The motivation is given in Note [tcFamTyPats: zonking the result kind].

Fixes #19250  --  the fix is easy.

(cherry picked from commit 69cab37a)

Tamar Christina authored 4 years ago and Ben Gamari committed 4 years ago

(cherry picked from commit 4517a382)

Tamar Christina authored 4 years ago and Ben Gamari committed 4 years ago

(cherry picked from commit f065b6b0)

We do not support foreign "C" imports of varargs functions. While this
works on amd64, in general the platform's calling convention may need
more type information that our Cmm representation can currently provide.
For instance, this is the case with Darwin's AArch64 calling convention.
Document this fact in the users guide and fix T5423 which makes use of a
disallowed foreign import.

Closes #18854.

(cherry picked from commit 0b772221)

In general we are less careful about locking closures when running with
only a single capability.

Fixes #19075.

(cherry picked from commit 87bc458d)

(cherry picked from commit 61ce4261)

The refactoring in ed57c3a9 failed to
initialize this field, resulting in no exports being registered. A very
silly bug and yet somehow none of our tests caught it.

See #18548.

Fixes #19149.

(cherry picked from commit 4cd2674f)

Previously lookupSymbol_PEi386 would call lookupSymbol while
holding linker_mutex. Fix this by rather
calling `lookupDependentSymbol`. This is safe
because lookupSymbol_PEi386 unconditionally holds linker_mutex.

Happily, this un-breaks `T12771`, `T13082_good`, and `T14611`, which
were previously marked as broken due to #18718.

Closes #19155.

(cherry picked from commit a7105e53)

The fix for 18919 was somewhat incomplete: while the MVars were
correctly added to the mut_list via dirty_MVAR(), their info table
remained "clean".

While this is mostly harmless in non-debug builds, but trips an
assertion in the debug build, and may result in the MVar being
needlessly being added to the mut_list multiple times.

Resolves: #19145

Scripts taken from autoconf 90b8cb42ba3b244250a6986b8b78c80f30ed197a

Previously we would append -Werror to the argument list. However, this
ended up overriding the -Wno-error=... flags in Settings.Warnings.

The previous state was quite illegible.

This interfered with the autoconf variable of the same name, breaking
pre-release builds.

(cherry picked from commit 15dca847)
(cherry picked from commit 3e55edd9)

Shayne Fletcher authored 4 years ago and Ben Gamari committed 4 years ago

(cherry picked from commit 57f3fdb1)

Fixes #18233.

Takenobu Tani authored 4 years ago and Ben Gamari committed 4 years ago

This patch adds the upper bound of a happy version for ghc-9.0
and earlier.

Currently, we can't use happy-1.20.0 for ghc-9.0.

See #18620.

(cherry picked from commit 74a7fbff)

Previously we would push large objects and compact regions to the mark
queue during the deadlock detect GC, resulting in failure to detect
deadlocks.

Pull the cold non-moving allocation path out of alloc_for_copy.

Previously the deadlock-detection promotion logic in alloc_for_copy was
just plain wrong: it failed to fire when gct->evac_gen_no !=
oldest_gen->gen_no. The fix is simple: move the

When performing a deadlock-detection GC we must ensure that all objects
end up in the non-moving generation. Assert this in scavenge.

Previously an incorrect semicolon meant that we would fail to call
busy_wait_nop when spinning.

Per request of @phadej.

Pulled out of !4310.

(cherry picked from commit be408b86)

As noted in #18991, we would previously allocate heap in low memory.
Due to this the linker, which typically *needs* low memory, would end up
competing with the heap. In longer builds we end up running out of
low memory entirely, leading to linking failures.

(cherry picked from commit a1a75aa9)

We place symbol_extras right after bss. We also need
to ensure that symbol_extras can be mprotect'd independently from the
rest of the image. To ensure this we round up the size of bss to a page
boundary, thus ensuring that symbol_extras is also page-aligned.

(cherry picked from commit 9f40cf6c)
(cherry picked from commit 4b83b6a8)

See Note [Non-moving GC: Marking evacuated objects].

(cherry picked from commit b416189e)

(cherry picked from commit a3b8375e)

The mark thread is not joinable as we detach from it on creation.

(cherry picked from commit ca1ef0e7)

pthread_join returns its error code and apparently doesn't set errno.

(cherry picked from commit c488ac73)

Ensure that the the free variables have been pushed to the update
remembered set before we zero the slop.

(cherry picked from commit 134f7599)

(cherry picked from commit 35c22991)