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Patch from Rainer Orth.
Reviewed-on: https://go-review.googlesource.com/29436
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@240285 138bc75d-0d04-0410-961f-82ee72b054a4
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runtime: pass correct type to __splitstack_find
The code was passing uintptr* to a function that expected size_t*.
Based on patch by Andreas Krebbel.
Fixes GCC PR 77642.
Reviewed-on: https://go-review.googlesource.com/29433
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@240275 138bc75d-0d04-0410-961f-82ee72b054a4
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Reviewed-on: https://go-review.googlesource.com/29154
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@240146 138bc75d-0d04-0410-961f-82ee72b054a4
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Copy over the Go 1.7 runtime/internal/sys package, but instead of having
separate files for each GOARCH and GOOS value, set the values in
configure.ac and write them out in Makefile.am. Setting the values in
configure.ac should make it easier to add new processors.
Remove the automake GOARCH conditionals, which are no longer used.
Leave the GOOS conditionals for now, as they are used for the C runtime
package.
Reviewed-on: https://go-review.googlesource.com/29018
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@240083 138bc75d-0d04-0410-961f-82ee72b054a4
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Reviewed-on: https://go-review.googlesource.com/29012
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@240071 138bc75d-0d04-0410-961f-82ee72b054a4
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Copy over the Go 1.7 runtime/internal/atomic package, but implement the
functions in C using __atomic functions rather than using the
processor-specific assembler code.
Reviewed-on: https://go-review.googlesource.com/29010
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@240070 138bc75d-0d04-0410-961f-82ee72b054a4
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Use alignof rather than assuming a 16 byte alignment.
Reviewed-on: https://go-review.googlesource.com/28913
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@240047 138bc75d-0d04-0410-961f-82ee72b054a4
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The definition and most uses of MAKECONTEXT_STACK_TOP were removed in
https://golang.org/cl/88660043, which removed support for Solaris 8/9.
One use of MAKECONTEXT_STACK_TOP was accidentally left in the source
code. Remove it now.
Reviewed-on: https://go-review.googlesource.com/28911
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@240045 138bc75d-0d04-0410-961f-82ee72b054a4
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Some systems, such as ia64 and PPC, require that a ucontext_t pointer
passed to getcontext and friends be aligned to a 16-byte boundary.
Currently the ucontext_t fields in the g structure are defined in Go,
and Go has no way to ensure a 16-byte alignment for a struct field.
The fields are currently represented by an array of unsafe.Pointer.
Enforce the alignment by making the array larger, and picking an offset
into the array that is 16-byte aligned.
Reviewed-on: https://go-review.googlesource.com/28910
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@240044 138bc75d-0d04-0410-961f-82ee72b054a4
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The default stack size for the gsignal goroutine, 32K, is not enough on
ia64. Make sure that the stack size is at least SIGSTKSZ.
Reviewed-on: https://go-review.googlesource.com/28224
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239894 138bc75d-0d04-0410-961f-82ee72b054a4
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Use the new -fgo-c-header option to build a header file for the Go
runtime code in libgo/go/runtime, and use the new header file in the C
runtime code in libgo/runtime. This will ensure that the Go code and C
code share the same data structures as we convert the runtime from C to
Go.
The new file libgo/go/runtime/runtime2.go is copied from the Go 1.7
release, and then edited to remove unnecessary data structures and
modify others for use with libgo.
The new file libgo/go/runtime/mcache.go is an initial version of the
same files in the Go 1.7 release, and will be replaced by the Go 1.7
file when we convert to the new memory allocator.
The new file libgo/go/runtime/type.go describes the gccgo version of the
reflection data structures, and replaces the Go 1.7 runtime file which
describes the gc version of those structures.
Using the new header file means changing a number of struct fields to
use Go naming conventions (that is, no underscores) and to rename
constants to have a leading underscore so that they are not exported
from the Go package. These names were updated in the C code.
The C code was also changed to drop the thread-local variable m, as was
done some time ago in the gc sources. Now the m field is always
accessed using g->m, where g is the single remaining thread-local
variable. This in turn required some adjustments to set g->m correctly
in all cases.
Also pass the new -fgo-compiling-runtime option when compiling the
runtime package, although that option doesn't do anything yet.
Reviewed-on: https://go-review.googlesource.com/28051
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239872 138bc75d-0d04-0410-961f-82ee72b054a4
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The go/build package does not know that gccgo's standard packages don't
have source, and will report an error saying that it can not find them.
Work around that in the cmd/go sources, since the go/build sources don't
currently have a list of standard packages.
This should get a real fix in the master sources, somehow.
Fixes golang/go#16701.
Reviewed-on: https://go-review.googlesource.com/27052
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239486 138bc75d-0d04-0410-961f-82ee72b054a4
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Reportedly ksh fails to unset a variable that was not previously set.
Change match.sh and gotest to not unset LANG, but instead set LANG=C.
Also don't combine exporting and setting variable in a single statement.
Reviewed-on: https://go-review.googlesource.com/26999
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239443 138bc75d-0d04-0410-961f-82ee72b054a4
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These files are used to select s390x assembler support in the gc
toolchain. We don't currently have that support, as it is written in
the cmd/asm syntax rather than gas syntax. Mark the files to be ignored
for now, falling back to the default implementations.
Patch by Andreas Krebbel.
Reviewed-on: https://go-review.googlesource.com/26994
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239442 138bc75d-0d04-0410-961f-82ee72b054a4
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It is testing functionality that gccgo does not need and does not
support.
Reviewed-on: https://go-review.googlesource.com/26992
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239438 138bc75d-0d04-0410-961f-82ee72b054a4
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We want to build dir_regfile.go if not GNU/linux, and not solaris/386,
and not solaris/sparc. The latter two conditions were incorrect. To
write ! solaris/386 we have to write !solaris !386. I forgot De
Morgan's Law.
Reviewed-on: https://go-review.googlesource.com/26870
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239393 138bc75d-0d04-0410-961f-82ee72b054a4
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CLONE_NEWNET is needed to compile the syscall tests on GNU/Linux.
The symbol is not defined in the CentOS 5.11 header files.
Patch from Uros Bizjak.
Reviewed-on: https://go-review.googlesource.com/26630
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239296 138bc75d-0d04-0410-961f-82ee72b054a4
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We already lowered the limit of recursive template invocations from
100,000 to 10,000, but the tests still fail occasionally on
x86_64-pc-linux-gnu when using GNU ld (so that split stacks are not
fully functional). Reduce the limit further, to 1000, enough so that
the test passes consistently.
Permitting 1000 recursive template invocations still seems capacious
enough for real world use.
Reviewed-on: https://go-review.googlesource.com/25590
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239261 138bc75d-0d04-0410-961f-82ee72b054a4
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Having each .lo depend on the corresponding .lo.dep caused too many
rebuilds, because the .lo.dep files are rebuilt when Makefile changes.
Instead, if the .lo.dep file changes, remove the .lo file.
Reviewed-on: https://go-review.googlesource.com/25588
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239258 138bc75d-0d04-0410-961f-82ee72b054a4
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The recent changes to Makefile.am mean that if you configure with an
absolute path as srcdir then gotest will be invoked with absolute paths
for the files. That case never worked. This patch fixes it.
Reviewed-on: https://go-review.googlesource.com/25587
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239256 138bc75d-0d04-0410-961f-82ee72b054a4
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runtime: treat zero-sized result value as void
Change the FFI interface to treat a call to a function that returns a
zero-sized result as a call to a function that returns void.
This is part of the fix for https://gcc.gnu.org/PR72814. On 32-bit
SPARC systems, a call to a function that returns a non-zero-sized struct
is followed by an unimp instruction that describes the size of the
struct. The function returns to the address after the unimp
instruction. The libffi library can not represent a zero-sized struct,
so we wind up treating it as a 1-byte struct. Thus in that case libffi
calls the function with an unimp instruction, but the function does not
adjust the return address. The result is that the program attempts to
execute the unimp instruction, causing a crash.
This is part of a change that fixes the crash by treating all functions
that return zero bytes as functions that return void.
Reviewed-on: https://go-review.googlesource.com/25585
* go-gcc.cc (Gcc_backend::function_type): If the return type is
zero bytes, treat the function as returning void.
(return_statement): If the return type is zero bytes, don't
actually return any values.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239252 138bc75d-0d04-0410-961f-82ee72b054a4
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Also change the configure script to set GOARCH correctly for ia64, and
add ia64 as a processor to match.sh and gotest.
Reviewed-on: https://go-review.googlesource.com/25549
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239225 138bc75d-0d04-0410-961f-82ee72b054a4
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Add a ppc build constraint for internal/syscall/unix.
Reviewed-on: https://go-review.googlesource.com/25547
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239210 138bc75d-0d04-0410-961f-82ee72b054a4
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Previously the libgo Makefile explicitly listed the set of files to
compile for each package. For packages that use build tags, this
required a lot of awkward automake conditionals in the Makefile.
This CL changes the build to look at the build tags in the files.
The new shell script libgo/match.sh does the matching. This required
adjusting a lot of build tags, and removing some files that are never
used. I verified that the exact same sets of files are compiled on
amd64 GNU/Linux. I also tested the build on i386 Solaris.
Writing match.sh revealed some bugs in the build tag handling that
already exists, in a slightly different form, in the gotest shell
script. This CL fixes those problems as well.
The old code used automake conditionals to handle systems that were
missing strerror_r and wait4. Rather than deal with those in Go, those
functions are now implemented in runtime/go-nosys.c when necessary, so
the Go code can simply assume that they exist.
The os testsuite looked for dir_unix.go, which was never built for gccgo
and has now been removed. I changed the testsuite to look for dir.go
instead.
Reviewed-on: https://go-review.googlesource.com/25546
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239189 138bc75d-0d04-0410-961f-82ee72b054a4
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Reviewed-on: https://go-review.googlesource.com/25490
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239144 138bc75d-0d04-0410-961f-82ee72b054a4
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When using gccgo on systems without full support for split stacks a
recursive template can overrun the available stack space. Reduce the
limit from 100000 to 10000 to make this less likely. It's still high
enough that real uses will work.
Reviewed-on: https://go-review.googlesource.com/25467
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239141 138bc75d-0d04-0410-961f-82ee72b054a4
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The code that handled +build lines did not correctly require them to all
be true. While looking into this I discovered that multiple +build
lines were mishandled in a different way, because the shell does not
preseve line breaks in backquoted data. Look for the +build token to
tell us when we are switching from one +build line to another.
Reviewed-on: https://go-review.googlesource.com/25460
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239100 138bc75d-0d04-0410-961f-82ee72b054a4
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Reviewed-on: https://go-review.googlesource.com/25211
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@238743 138bc75d-0d04-0410-961f-82ee72b054a4
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Patch from Rainer Orth.
Reviewed-on: https://go-review.googlesource.com/25210
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@238742 138bc75d-0d04-0410-961f-82ee72b054a4
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Reviewed-on: https://go-review.googlesource.com/25150
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@238662 138bc75d-0d04-0410-961f-82ee72b054a4
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This updates gccgo to the final version of https://golang.org/cl/18790,
by Michael Hudson-Doyle.
Update golang/go#11739.
Reviewed-on: https://go-review.googlesource.com/22400
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235380 138bc75d-0d04-0410-961f-82ee72b054a4
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Reviewed-on: https://go-review.googlesource.com/22007
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234958 138bc75d-0d04-0410-961f-82ee72b054a4
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Leaving them incorrectly marked as addressable broke a use of the
text/template package, because state.evalField checks CanAddr and takes
the address if it is addressable.
Reviewed-on: https://go-review.googlesource.com/21908
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234923 138bc75d-0d04-0410-961f-82ee72b054a4
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Reportedly fixes PPC64 deadlock.
From a comment by Gabriel Russell.
Fixes golang/go#15051.
Reviewed-on: https://go-review.googlesource.com/21450
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234694 138bc75d-0d04-0410-961f-82ee72b054a4
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syscall: Add new Getsockopt functions.
Add GetsockoptICMPv6Filter, GetsockoptIPv6MTUInfo, GetsockoptUcred as
appropriate. These functions exist in the master library.
For GCC PR 69966.
Reviewed-on: https://go-review.googlesource.com/19960
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@233747 138bc75d-0d04-0410-961f-82ee72b054a4
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cgo should lock the M.
See also https://golang.org/cl/18882 .
Reviewed-on: https://go-review.googlesource.com/18883
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@233670 138bc75d-0d04-0410-961f-82ee72b054a4
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Reviewed-on: https://go-review.googlesource.com/19592
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@233515 138bc75d-0d04-0410-961f-82ee72b054a4
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This is a port of https://golang.org/cl/18150 to the gccgo runtime.
The previous behaviour of installing the signal handlers in a separate
thread meant that Go initialization raced with non-Go initialization if
the non-Go initialization also wanted to install signal handlers. Make
installing signal handlers synchronous so that the process-wide behavior
is predictable.
Reviewed-on: https://go-review.googlesource.com/19494
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@233393 138bc75d-0d04-0410-961f-82ee72b054a4
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cmd/go: fix "#cgo pkg-config:" comments with gccgo
Copy of https://golang.org/cl/18790 by Michael Hudson-Doyle.
The unique difficulty of #cgo pkg-config is that the linker flags are recorded
when the package is compiled but (obviously) must be used when the package is
linked into an executable -- so the flags need to be stored on disk somewhere.
As it happens cgo already writes out a _cgo_flags file: nothing uses it
currently, but this change adds it to the lib$pkg.a file when compiling a
package, reads it out when linking (and passes a version of the .a file with
_cgo_flags stripped out of it to the linker). It's all fairly ugly but it works
and I can't really think of any way of reducing the essential level of
ugliness.
Update golang/go#11739.
GCC PR 66904.
Reviewed-on: https://go-review.googlesource.com/19431
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@233290 138bc75d-0d04-0410-961f-82ee72b054a4
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runtime: change G gcstack_size field to size_t
Because its address is passed to __splitstack_find, which expects size_t*.
From Dominik Vogt in GCC PR 69511.
Reviewed-on: https://go-review.googlesource.com/19429
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@233260 138bc75d-0d04-0410-961f-82ee72b054a4
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runtime: Don't refer to _end symbol in shared library.
Fixes GCC PR 69357.
Reviewed-on: https://go-review.googlesource.com/19362
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@233235 138bc75d-0d04-0410-961f-82ee72b054a4
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Reviewed-on: https://go-review.googlesource.com/19233
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@233156 138bc75d-0d04-0410-961f-82ee72b054a4
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Reviewed-on: https://go-review.googlesource.com/19200
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@233110 138bc75d-0d04-0410-961f-82ee72b054a4
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This fixes the long-standing bug in which the testing package misreports
the file/line of an error.
Reviewed-on: https://go-review.googlesource.com/19179
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@233098 138bc75d-0d04-0410-961f-82ee72b054a4
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libgo/testsuite: portable ps usage in gotest
gotest is using "ps" to list descendant sleep
processes in its timeout handling, grepping
the command name.
We are currently using the "cmd" ps output
formatter, which is non-portable. We should
use "comm" which is part of the POSIX
standard, and outputs only the command name
and not the arguments.
Fixes https://gcc.gnu.org/PR68980
Reviewed-on: https://go-review.googlesource.com/18426
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@232234 138bc75d-0d04-0410-961f-82ee72b054a4
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This change updates mksysinfo.sh so it correctly
includes the define NLA_HDRLEN in the syscall package.
Fixes golang/go/#13629
Reviewed-on: https://go-review.googlesource.com/17893
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231796 138bc75d-0d04-0410-961f-82ee72b054a4
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runtime: don't overallocate in select code
If we've already allocated an fd_set, don't allocate another one.
Also, don't bother to read from rdwake if it wasn't returned in select.
Fixes https://gcc.gnu.org/PR61303.
Reviewed-on: https://go-review.googlesource.com/17243
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@230922 138bc75d-0d04-0410-961f-82ee72b054a4
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reflect: Allocate space for FFI functions returning a zero-sized type.
The libffi library does not understand zero-sized types. We represent
them as a struct with a single field of type void. If such a type is
returned from a function, libffi will copy 1 byte of data. Allocate
space for that byte, although we won't use it.
Fixes https://gcc.gnu.org/PR68496.
Reviewed-on: https://go-review.googlesource.com/17175
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@230776 138bc75d-0d04-0410-961f-82ee72b054a4
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syscall: Fix initial offset value in syscall.Sendfile.
Bug reported in https://gcc.gnu.org/PR66378.
Reviewed-on: https://go-review.googlesource.com/17159
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@230699 138bc75d-0d04-0410-961f-82ee72b054a4
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net: don't run multicast listen test on nil interface in short mode
This is a backport of https://golang.org/cl/17154.
The gccgo bug report https://gcc.gnu.org/PR65785 points out that the
multicast listen tests will use the network even with -test.short.
Fix test by checking testing.Short with a nil interface.
Reviewed-on: https://go-review.googlesource.com/17158
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@230695 138bc75d-0d04-0410-961f-82ee72b054a4
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