PR 68980
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
From-SVN: r232234
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
From-SVN: r231796
PR go/61303
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
From-SVN: r230922
PR go/68496
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
From-SVN: r230776
PR go/65785
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
From-SVN: r230695
When using the go command built from gccgo to build and
install a go tool, use the value from runtime GCCGOTOOLDIR as
the install directory.
This also fixes the output from 'go tool' when used with the
gccgo-built go command, to only include the go tools and not
other binaries found in the same directory.
Reviewed-on: https://go-review.googlesource.com/16516
From-SVN: r230677
Before Solaris 12 the sendfile function is found in -lsendfile, so look
for it there.
Solaris 12 adds some more types that use _in6_addr_t, that need to be
edited in mksysinfo.
Patch by Rainer Orth.
Reviewed-on: https://go-review.googlesource.com/16779
From-SVN: r230132
PR go/68255
cmd/go: always use --whole-archive for gccgo packages
This is a backport of https://golang.org/cl/16775.
This is, in effect, what the gc toolchain does. It fixes cases where Go
code refers to a C global variable; without this, if the global variable
was the only thing visible in the C code, the generated cgo file might
not get pulled in from the archive, leaving the Go variable
uninitialized.
This was reported against gccgo as https://gcc.gnu.org/PR68255 .
Reviewed-on: https://go-review.googlesource.com/16778
From-SVN: r230120
PR go/66138
reflect, encoding/json, encoding/xml: fix unexported embedded structs
Bring in three changes from the master Go repository. These changes
will be in Go 1.6, but they are appropriate for gccgo now because they
resolve a long-standing discrepancy between how gc and gccgo handle the
PkgPath field for embedded unexported struct fields. The core issue is
described at https://golang.org/cl/7247. This has been reported against
gccgo as https://gcc.gnu.org/PR66138.
The three changes being brought over are:
https://golang.org/cl/14010
reflect: adjust access to unexported embedded structs
This CL changes reflect to allow access to exported fields and
methods in unexported embedded structs for gccgo and after gc
has been adjusted to disallow access to embedded unexported structs.
Adresses #12367, #7363, #11007, and #7247.
https://golang.org/cl/14011
encoding/json: check for exported fields in embedded structs
Addresses issue #12367.
https://golang.org/cl/14012
encoding/xml: check for exported fields in embedded structs
Addresses issue #12367.
Reviewed-on: https://go-review.googlesource.com/16723
From-SVN: r229907
Only build net/hook_cloexec.go on GNU/Linux and FreeBSD, because those
are the only systems with accept4.
Add syscall/libcall_bsd.go to define sendfile for *BSD and Solaris.
Revert tcpsockopt_solaris.go back to the earlier version, so that it
works on Solaris 10.
Always pass the address of a Pid_t value to TIOCGPGRP and TIOCSPGRP.
Include <unistd.h> in runtime/go-varargs.c.
Reviewed-on: https://go-review.googlesource.com/16719
From-SVN: r229880
I managed to add a new --goarch option to gotest without noticing that
the script already had one. Worse, they set different variables.
Remove the old option in favor of the new one.
Reviewed-on: https://go-review.googlesource.com/16613
From-SVN: r229734
When not using split stacks, libgo allocate large stacks for each
goroutine. On a 64-bit system, libgo allocates a maximum of 128G for
the Go heap, and allocates 4M for each stack. When the stacks are
allocated from the Go heap, the result is that a program can only create
32K goroutines, which is not enough for an active Go server. This patch
changes libgo to allocate the stacks using mmap directly, rather than
allocating them out of the Go heap. This change is only done for 64-bit
systems when not using split stacks. When using split stacks, the
stacks are allocated using mmap directly anyhow. On a 32-bit system,
there is no maximum size for the Go heap, or, rather, the maximum size
is the available address space anyhow.
Reviewed-on: https://go-review.googlesource.com/16531
From-SVN: r229636
Type descriptors picked up a zero field because the gc map
implementation used it. However, it's since been dropped by the gc
library. It was never used by gccgo. Drop it now in preparation for
upgrading to the Go 1.5 library.
Reviewed-on: https://go-review.googlesource.com/16486
From-SVN: r229546
Change the type descriptor hash and equal functions from C code pointers
to Go func values. This permits them to be set to a Go function
closure. This is in preparation for the Go 1.5, so that we can use a
closure for the hash/equal functions returned by the new reflect.ArrayOf
function.
Reviewed-on: https://go-review.googlesource.com/16485
From-SVN: r229541
This patch adds an easy way to write tests for expected multiline
output. For example we can test carets and underlines for
a particular diagnostic with:
/* { dg-begin-multiline-output "" }
typedef struct _GMutex GMutex;
^~~~~~~
{ dg-end-multiline-output "" } */
multiline.exp is used by prune.exp; hence we need to load it before
prune.exp via *load_gcc_lib* for the testsuites of the various
non-"gcc" support libraries (e.g. boehm-gc).
gcc/testsuite/ChangeLog:
* lib/multiline.exp: New file.
* lib/prune.exp: Load multiline.exp.
(prune_gcc_output): Call into multiline.exp to handle any
multiline output directives.
* lib/libgo.exp: Load multiline.exp before prune.exp, using
load_gcc_lib.
boehm-gc/ChangeLog:
* testsuite/lib/boehm-gc.exp: Load multiline.exp before
prune.exp, using load_gcc_lib.
libatomic/ChangeLog:
* testsuite/lib/libatomic.exp: Load multiline.exp before
prune.exp, using load_gcc_lib.
libgomp/ChangeLog:
* testsuite/lib/libgomp.exp: Load multiline.exp before prune.exp,
using load_gcc_lib.
libitm/ChangeLog:
* testsuite/lib/libitm.exp: Load multiline.exp before prune.exp,
using load_gcc_lib.
libvtv/ChangeLog:
* testsuite/lib/libvtv.exp: Load multiline.exp before prune.exp,
using load_gcc_lib.
From-SVN: r228655
PR go/67874
net, runtime: Call C library fcntl function rather than syscall.Syscall.
Not all systems define a fcntl syscall; some only have fcntl64.
Fixes GCC PR go/67874.
Reviewed-on: https://go-review.googlesource.com/15497
From-SVN: r228576
If the compiler supports split-stack but we are using a gold linker that
does not, as happens on PPC with current GCC but old gold, then we need
to compile the Go code with -fno-split-stack to avoid a linker error
avoid the inability to call from split-stack code to non-split-stack
code.
Reviewed-on: https://go-review.googlesource.com/14598
From-SVN: r227811
PPC has split-stack support in current GCC, but old version of gold will
reject attempts to link PPC split-stack and non-split-stack code
together. Test for that, and don't compile the C code with
-fsplit-stack if it doesn't work.
Reviewed-on: https://go-review.googlesource.com/14594
From-SVN: r227802
This avoids linker warnings when linking against glibc, as apparently
arm64 GNU/Linux does not support the ustat system call.
Also update to automake 1.11.6, as that is the new GCC standard.
Reviewed-on: https://go-review.googlesource.com/14567
From-SVN: r227777
From Rainer Orth.
Solaris 12 changes the stat_[amc]tim members of struct stat from
timestruc_t to timespec_t for XPG7 compatiblity, thus breaking the libgo
build. The following patch checks for this change and uses the common
stat_atim.go if appropriate.
Reviewed-on: https://go-review.googlesource.com/14495
From-SVN: r227665
If the timeout subshell has no child processes,
the "xargs | kill" will fail. Ensure there is
some input for kill before calling it.
Reviewed-on: https://go-review.googlesource.com/13295
From-SVN: r226719
The struct RawSockaddr contains a field Data which
should be uint8 on ppc64 and ppc64le, but is declared
as int8 in gccgo. This change adds a two new files
which contain the structure declaration for
RawSockaddr, one with the correct types for for ppc64
and ppc64le, and the other for non-ppc64 platforms.
Fixesgolang/go#11469
Reviewed-on: https://go-review.googlesource.com/11946
From-SVN: r226533
This change modifies the "gotest" shell script
to kill all processes, including "sleep", spawned
by the timeout subshell. This prevents the sleep
process from living beyond the gotest process.
BACKGROUND
The "gotest" shell script spawns "sleep" processes
in the background to kill off test cases that run
past their specified timeout. There are commands
included that appear to kill the sleep process,
but they only kill the parent shell, causing the
sleep process to reparent.
The orphaned sleep process can cause issues when
gotest is run under some build systems, such as
Ninja [0]. The particular issue with Ninja is the
method it uses to identify terminated processes:
it creates a pipe, passes the write end to the
child process, and waits for EOF. In the case of
libgo/gotest, the orphaned sleep process inherits
the pipe FD and keeps it open for 4 minutes by
default.
[0] https://github.com/martine/ninja
Reviewed-on: https://go-review.googlesource.com/12227
From-SVN: r226526
PR go/67101
runtime: Remove call to __builtin_frame_address.
__builtin_frame_address was only supposed to use nonzero arguments
for debugging purposes. Calling it with nonzero arguments can have
unpredictable results and uses are now marked unsafe when
-Wframe-address is enabled.
Reviewed-on: https://go-review.googlesource.com/13063
From-SVN: r226525
In a recent change to mksysinfo.sh, a space was missing on
some lines which caused the libgo build to hang on some
systems. This corrects that problem.
Fixesgolang/go#11924
Reviewed-on: https://go-review.googlesource.com/12835
From-SVN: r226366
During the gccgo build define constants from
some header files are processed by mksysinfo.sh and
added to syscall.go. In some cases the constants
are based on macros which are not processed
correctly by mksysinfo.sh. This adds the support
to generate the correct values for the TUN* constants
from linux/if_tun.h.
Fixesgolang/go#11707
Reviewed-on: https://go-review.googlesource.com/12491
From-SVN: r226196
As the removed comment states, if the package being compiled played
certain tricks with pointers that looked like integers, the compiler
might allocate space for new pointers unnecessarily. Since the type
information on the heap is now precise, this logic can be moved to the
runtime.
Reviewed-on: https://go-review.googlesource.com/11581
From-SVN: r225757
The syscall for Getdents in syscall/libcall_linux.go
called Entersyscall and Exitsyscall, causing the
runtime_sched counts for goroutines to be incorrect.
Inconsistent counts caused checkdead in runtime/proc.c
to panic.
Fixesgolang/go#11406
Reviewed-on: https://go-review.googlesource.com/11761
From-SVN: r225745
When libgo is not optimized the static function profilealloc
in malloc.goc shows up in the stack trace. Rename it to
runtime_profilealloc so that runtime/pprof.printStackRecord
ignores it.
From-SVN: r223006
These changes permit using the go tool from the upcoming Go
1.5 release with -buildmode=c-archive to build gccgo code into
an archive file that can be linked with a C program.
From-SVN: r222594
PR go/64683
runtime/pprof: Assume function with no name is in runtime.
GCC PR 65797 causes some of the runtime functions to be
compiled with no name in the debug info. This in turn causes
the runtime/pprof test to fail as reported in GCC PR 64683.
There are no good choices when a function has no name in the
debug info, but here we assume that if we see such a function
while reading the runtime functions, we assume that it is also
a runtime function.
From-SVN: r222200
PR go/65755
compiler, runtime, reflect: Use reflection string for type comparisons.
Change the runtime and reflect libraries to always use only
the type reflection string to determine whether two types are
equal. It previously used the PkgPath and Name values for a
type name, but that required a PkgPath that did not match the
gc compiler.
Change the compiler to use the same PkgPath value as the gc
compiler in all cases.
Change the compiler to put the receiver type in the reflection
string for a type defined inside a method.
From-SVN: r222194
PR go/63731
libgo: Build and install libnetgo.a
libnetgo.a provides the net
package built with the netgo
tag enabled. This provides the
netgo fallback solution for gccgo.
This lib must be explicitly linked
in using the -gccgoflags, so is
not included by default.
From-SVN: r221906
When linking complex packages that use both internal and external tests as well as many dependencies it is critical that the link order be external test package, internal test package, everything else.
This change is a back (forward?) port of the same change that canonical have been maintaining on their fork of the go tool for gccgo. Now that gccgo uses the go tool from upstream, this patch should be applied both to the gofrontend and golang/go repos.
From-SVN: r221800
PR go/65570
libgo/Makefile.am: add runtime/cgo to list of standard packages
The runtime/cgo package is treated specially by the go tool.
It needs to know that it is always available for gccgo.
From-SVN: r221673
PR go/65417
debug/elf: support reading debug info from 32-bit PPC objects
This is a backport of http://golang.org/7590 from the master
Go library.
From-SVN: r221644
PR go/65462
cmd: Fix dependencies for 'go get' with gccgo
Problem described in GCC BZ 65462.
Generate the list of the standard GO package names based on what was built into libgo in the libgo Makefile.
Change the var name from reqPkgSrc to reqStdPkgSrc to clarify it only affects standard GO packages.
Skip the attempted loading of a package only if it is a standard GO package and the flag is set indicating its source is not required to be available.
This requires a corresponding change to gotools to build and link in the new file containing the list of standard GO package names that was generated by the libgo Makefile.
gotools/:
PR go/65462
* Makefile.am (go_cmd_go_files): Add $(libgodir)/zstdpkglist.go.
* Makefile.in: Rebuild.
From-SVN: r221643
PR go/65349
runtime: Don't call malloc from __go_file_line callback.
When crashing, we call runtime_printcreatedby which calls
__go_file_line which used to call the Go malloc. If we are
crashing due to a signal due to heap corruption of some sort,
the GO malloc lock might already be held, leading to a crash
within a crash. Avoid that by assuming that the libbacktrace
strings will stick around, as we already do in go-callers.c.
From-SVN: r221291
From Rainer Orth.
The recent godump changes broke Solaris 11.1+ bootstrap in
libgo: before, gen-sysinfo.so had
type _zone_net_addr_t struct { zna_family uint16; zna_plen uint16; zna_addru struct { znau_addr6 _in6_addr; }; }
which was filtered out by mksysinfo.sh due to the use of
_in6_addr.
After the change, there's now
type _zone_net_addr_t struct { zna_family uint16; zna_plen uint16; zna_addru struct { znau_addr6 [16]byte; Godump_0_align [0]uint32; }; }
instead, not filtered, but added a second time by the
_zone_net_addr_t code in mksysinfo.sh, which leads to
redefinition warnings/errors.
Simply removing the old _zone_net_addr_t fragment fixes this
and restores bootstrap.
From-SVN: r220481
Add memprofilerate as a value recognized
in the GODEBUG env var. The value provided
is used as the new setting for
runtime.MemProfileRate, allowing the user
to adjust memory profiling.
From-SVN: r220470
PR go/64683
runtime/pprof: Let memory profiler test pass if value not collected.
Since gccgo's GC is not precise, the transient value may not
be collected. Let the regexp match that case as well.
From-SVN: r219900
Change from using __go_set_closure to passing the closure
value in the static chain field. Uses new backend support for
setting the closure chain in a call from C via
__builtin_call_with_static_chain. Uses new support in libffi
for Go closures.
The old architecture specific support for reflect.MakeFunc is
removed, replaced by the libffi support.
All work done by Richard Henderson.
* go-gcc.cc (Gcc_backend::call_expression): Add chain_expr argument.
(Gcc_backend::static_chain_variable): New method.
From-SVN: r219776
The version from the master repository seems to be appropriate
for OpenSolaris but not for Solaris itself. Solaris 11.2
proper does not define TCP_KEEPIDLE or TCP_KEEPINTVL.
From-SVN: r219749
A recent libffi upgrade caused the reflect test to fail on
386. The problem case is a function that returns an empty
struct--a struct with no fields. The libffi library does not
recognize the existence of empty structs, presumably since
they can't happen in C. To work around this, the Go interface
to the libffi library changes an empty struct to void. This
normally works fine, but with the new libffi upgrade it fails
for a function that returns an empty struct. On 386 a
function that returns a struct is expected to pop the hidden
pointer when it returns. So when we convert an empty struct
to void, libffi is calling a function that pops the hidden
pointer but does not expect that to happen.
In the older version of libffi, this didn't matter, because
the libffi code for 386 used a frame pointer, so the fact that
the stack pointer was wonky when the function returned was
ignored as the stack pointer was immediately replaced by the
saved frame pointer. In the newer version of libffi, the 386
code is more efficient and does not use a frame pointer, and
therefore it matters whether libffi expects the function to
pop the hidden pointer or not.
This patch changes libgo to convert an empty to a struct with
a single field of type void. This seems to be enough to get
the test cases working again.
Of course the real fix would be to change libffi to handle
empty types, but as libffi uses size == 0 as a marker for an
uninitialized type, that would be a non-trivial change.
From-SVN: r219701
This upgrades all of libgo other than the runtime package to
the Go 1.4 release. In Go 1.4 much of the runtime was
rewritten into Go. Merging that code will take more time and
will not change the API, so I'm putting it off for now.
There are a few runtime changes anyhow, to accomodate other
packages that rely on minor modifications to the runtime
support.
The compiler changes slightly to add a one-bit flag to each
type descriptor kind that is stored directly in an interface,
which for gccgo is currently only pointer types. Another
one-bit flag (gcprog) is reserved because it is used by the gc
compiler, but gccgo does not currently use it.
There is another error check in the compiler since I ran
across it during testing.
gotools/:
* Makefile.am (go_cmd_go_files): Sort entries. Add generate.go.
* Makefile.in: Rebuild.
From-SVN: r219627
Don't look it up on PATH. This lets a go tool built as part
of a GCC build use the gccgo from the same build.
Also pass -c when assembling a .s file with gccgo.
From-SVN: r219358
Ian Lance Taylor