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Patch by Svante Signell.
Updates PR go/93468
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/216959
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Patch from Svante Signell.
Updates PR go/93468
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/216958
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Patch by Maciej W. Rozycki.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/216239
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In libgo CacheLinePadSize is defined by the generated file cpugen.go.
Keep cpu_riscv64.go around, even though it is now empty, so that
we will pick up changes to it in future merges.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/216077
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Type descriptors are normally weak and nm will report them as V,
so we will skip them when collecting the list of symbols.
But when not using GNU nm, they may be reported as D,
so also skip them in symstogo.
This fixes go/doc/check on Solaris.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/215900
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Fixes a build breakage introduced in the 1.14beta1 upgrade.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/215857
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Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/215342
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The function name was changed in 1.14beta1. Fix the non-x86, non-s390 code.
Fixes golang/go#36694
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/215724
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Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/214297
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It's not part of the POSIX shell standard.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/214300
From-SVN: r280118
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Previously if the only names defined by _test packages were examples,
the gotest script would emit an incorrect _testmain.go file.
I worked around that by marking the example_test.go files +build ignored.
This CL changes the gotest script to handle this case correctly,
and removes the now-unnecessary build tags.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/214039
From-SVN: r280085
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Use specific panic functions instead, which are mostly already in the
runtime package.
Also correct "defer nil" to panic when we execute the defer, rather
than throw when we queue it.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/213642
From-SVN: r279979
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Right now we generate hash functions for all types, just in case they
are used as map keys. That's a lot of wasted effort and binary size
for types which will never be used as a map key. Instead, generate
hash functions only for types that we know are map keys.
Just doing that is a bit too simple, since maps with an interface type
as a key might have to hash any concrete key type that implements that
interface. So for that case, implement hashing of such types at
runtime (instead of with generated code). It will be slower, but only
for maps with interface types as keys, and maybe only a bit slower as
the aeshash time probably dominates the dispatch time.
Reorg where we keep the equals and hash functions. Move the hash function
from the key type to the map type, saving a field in every non-map type.
That leaves only one function in the alg structure, so get rid of that and
just keep the equal function in the type descriptor itself.
While we're here, reorganize the rtype struct to more closely match
the gc version.
This is the gofrontend version of https://golang.org/cl/191198.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/212843
From-SVN: r279848
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PR go/93020
libgo: Hurd portability patches
By Svante Signell.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/212409
From-SVN: r279724
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PR go/92861
runtime: don't define CLOCK_REALTIME in os_hurd.go
It's already defined in sysinfo.go.
Patch by Samuel Thibault.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/210538
From-SVN: r279136
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PR go/92861
runtime: use absolute time for sem_timedwait
Patch by Samuel Thibault.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/210457
From-SVN: r279106
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PR go/92820
runtime: only build go-context for x86 GNU/Linux
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/210258
From-SVN: r279063
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STMicroelectronics)
PR go/29842
runtime: update HURD support for mOS now being embedded
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/210285
From-SVN: r279062
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PR go/92810
libgo: recognize aarch64_be as arm64be
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/210038
From-SVN: r279032
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PR go/92820
runtime: always mark assembly file as non-executable stack
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/210037
From-SVN: r279010
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PR go/92605
runtime: declare runtime_usestackmaps in stack.c, not runtime.h
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/208161
From-SVN: r278540
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Also fix a case where grep wasn't redirecting to /dev/null.
Fixes golang/go#35713
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/208160
From-SVN: r278539
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Updates cgo's gccgoPkgpathToSymbolNew() to bring it into
conformance with the way that gccgo now handles package
paths with embedded dots (see CL 200838). See also
https://gcc.gnu.org/PR61880, a related bug. This CL is a
copy of CL 207957 in the main Go repo.
Updates golang/go#35623.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/207977
From-SVN: r278470
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Patch by Maciej W. Rozycki.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/207458
From-SVN: r278316
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Patch by Maciej W. Rozycki.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/206577
From-SVN: r278070
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Patch from Andreas Krebbel.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/201038
From-SVN: r276964
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Patch from Andreas Krebbel.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/201037
From-SVN: r276962
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The .note.GNU-stack section tells the linker that this object does not
require an executable stack.
The .note.GNU-split-stack section tells the linker that functions in
this object can be called directly by split-stack functions, without
require a large stack.
The .note.GNU-no-split-stack section tells the linker that functions
in this object do not have a split-stack prologue.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/198440
From-SVN: r276488
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This CL serves as part of an initial change for enabling gollvm
building on arm64 linux, the rest of the change will be covered by
another one to the gollvm repo.
Incorporate type definition of 'uint128' to 'runtime' and 'syscall'
packges, the change is not specific to arm64 linux but made available
for all platforms.
Verified by building and unit-testing gollvm on linux x86-64 and arm64.
Verified by building and checking gccgo on linux x86-64 and arm64.
Fixes golang/go#33711
Change-Id: I4720c7d810cfd4ef720962fb4104c5641b2459c0
From-SVN: r275919
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This only matters on systems that pass a struct with a single pointer
field differently than passing a single pointer. I noticed it on
32-bit PPC, where the reflect package TestDirectIfaceMethod failed.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/195878
From-SVN: r275814
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PR go/91781
reflect: promote integer closure return to full word
The libffi library expects an integer return type to be promoted to a
full word. Implement that when returning from a closure written in Go.
This only matters on big-endian systems when returning an integer smaller
than the pointer size, which is why we didn't notice it until now.
Fixes https://gcc.gnu.org/PR91781.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/195858
From-SVN: r275813
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The function was always intended to be internal-only, but was exported
so that C code could call it. Now that have go:linkname for that, use it.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/195857
From-SVN: r275809
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It's not supported by Solaris grep. Just use * instead; it matches
more but it shouldn't matter.
Fixes https://gcc.gnu.org/PR91764
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/195238
From-SVN: r275700
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Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/194698
From-SVN: r275691
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Should fix the build on riscv64 and other systems.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/194641
From-SVN: r275650
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When compiling the x_test package, force the test package to be
imported first. That ensures that we will see the types defined in
the test package before the types defined in the non-test version of
the package. This matters if the types differ in some way, such as by
adding a new method.
This avoids a failure in internal/poll on Solaris, in which the test
package adds a method to a type (FD.EOFError). I think it was Solaris-
specific because files are sorted in a different order by default.
The go tool handles this kind of thing correctly, by rebuilding
dependent packages. This is just a hack sufficient to run the libgo
testsuite without using the go tool.
Fixes https://gcc.gnu.org/PR91712
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/194637
From-SVN: r275648
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Restore Solaris compatibility fixes lost when internal/x/net/lif moved
to golang.org/x/net/lif. Also fix the Makefile for x/net/lif and
x/net/route.
Change x/sys/cpu to get the cache line size from goarch.sh as the
gofrontend version of internal/cpu does.
Partially based on work by Rainer Orth.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/194438
From-SVN: r275611
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PR go/91621
mksysinfo: change test == to test =
Fixes https://gcc.gnu.org/PR91621
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/194569
From-SVN: r275608
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Backport of https://golang.org/cl/194440. Original description:
If an embedded field refers to a type via a pointer, the parser needs
to know the name of the embedded field. It is possible that the
pointer type is not yet resolved. This CL fixes the parser to handle
that case by setting the pointer element type to the unresolved named
type while the pointer is being resolved.
Updates golang/go#34182
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/194562
From-SVN: r275606
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Also fix the key used to store the ID.
This is a significant speedup in cmd/go run time.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/194257
From-SVN: r275559
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They were lost when the files were moved in the update to Go1.13beta1.
These changes should be made in the master repo for the 1.14 release,
as riscv64 support is added there.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/194343
From-SVN: r275551
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The C file has a build tag, but the procedure we use for building C
files ignores build tags.
This should fix the libgo build on non-x86 systems.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/194378
From-SVN: r275544
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Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/193497
From-SVN: r275473
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The gc compiler has started permitting go:linkname comments with a
single argument to mean that a function should be externally visible
outside the package. Implement this in the Go frontend.
Change the libgo runtime package to use it, rather than repeating the
name just to export a function.
Remove a couple of unnecessary go:linkname comments on declarations.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/192197
From-SVN: r275239
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Avoids problems with arm64 ILP32 mode. We might want to handle that
mode better in general, but always building panic32.go is simple and
fixes the build.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/192723
From-SVN: r275237
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Permit putting structs with anonymous and empty fields in the C header
file runtime.inc that is used to build the C runtime code. This is
required for upcoming 1.13 support, as the m struct has picked up an
anonymous field.
Doing this lets the C header contain all the type descriptor structs,
so start using those in the C code. This cuts the number of copies of
type descriptor definitions from 3 to 2.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/192343
From-SVN: r275227
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This is a step toward updating libgo to 1.13. This adds the 1.13
version of the osinit function to Go code, and removes the
corresponding code from the C runtime. This should simplify future updates.
Some additional 1.13 code was brought in to simplify this change.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/191717
From-SVN: r275010
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This implements https://golang.org/cl/161477 in the gofrontend.
Updates golang/go#30116
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/191881
From-SVN: r274998
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The Makefile was missing a dependency.
Also remove runtime.inc.raw in mostlyclean.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/191958
From-SVN: r274956
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Record when a local pointer variable is set to a value such that
indirecting through the pointer does not require a write barrier. Use
that to eliminate write barriers when indirecting through that local
pointer variable. Only keep this information per-block, so it's not
all that applicable.
This reduces the number of write barriers generated when compiling the
runtime package from 553 to 524.
The point of this is to eliminate a bad write barrier in the bytes
function in runtime/print.go. Mark that function nowritebarrier so
that the problem does not recur.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/191581
From-SVN: r274890
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