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From Eric Botcazou.
From-SVN: r223231
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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
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PR go/66016
runtime: Don't crash in Func.Name if the Func is nil.
Related to Go issue 10696
From-SVN: r222816
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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
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PR go/65616
libgo: Compile go-main, in libgobegin, with -fPIC.
From-SVN: r222431
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PR go/65798
runtime: In Caller don't return ok == true if PC == 0.
GCC PR 65798 reports that this can happen in some cases.
From-SVN: r222204
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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
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PR go/64999
PR go/65180
runtime: Adjust libbacktrace PC value to what runtime.Callers expects.
From Lynn Boger.
From-SVN: r222196
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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
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From Rainer Orth.
From-SVN: r221920
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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
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From-SVN: r221802
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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
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PR go/65587
debug/elf: apply relocations for SHT_RELA/EM_PPC
From-SVN: r221698
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The tests run out of memory on 31-bit S390 systems because
it does not have split stacks.
From-SVN: r221681
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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
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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
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correctly)
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
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In particular, mention that libgo should not be stripped.
From-SVN: r221427
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From-SVN: r221398
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PR go/65404
go/build: cgo works on linux/pcc.
From-SVN: r221396
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PR go/65353.
cmd/cgo: Add all gccgo GOARCH values to size maps.
From-SVN: r221293
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PR go/65349
runtime: Don't crash if explicitly freeing small map.
From-SVN: r221292
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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
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From-SVN: r221245
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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
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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
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The go/types package was removed in July 2013, but the
testdata files were accidentally left behind.
From-SVN: r220378
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PR go/64573
syscall: Restore line somehow lost in libgo merge.
From-SVN: r220068
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finalizer for type func(*int) didn't run)
PR go/64725
runtime: Disable tests that require that a finalizer run.
From-SVN: r220067
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PR go/64595
runtime: Don't crash in runtime_callers if no debug info available.
From-SVN: r220057
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From-SVN: r219976
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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
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All supported libgo 386 targets now have complex support in
libffi.
From Uros Bizjak.
From-SVN: r219877
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From-SVN: r219862
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From-SVN: r219831
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The glibc setcontext incorrectly modifies %g7 on SPARC.
From Richard Henderson.
From-SVN: r219778
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No longer needed now that libffi supports complex types.
From-SVN: r219777
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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
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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
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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
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From Uros Bizjak.
From-SVN: r219691
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From-SVN: r219685
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From-SVN: r219629
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From-SVN: r219628
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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
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toolchain).
From-SVN: r219419
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From-SVN: r219406
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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
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The new commands are not yet built. That will be done
separately.
Also include a few changes to go/build to support them.
From-SVN: r219272
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