libgcc:
	* config.host (*-*-solaris2*): Adapt comment for Solaris 12
	renaming.
	* config/sol2/crtpg.c (__start_crt_compiler): Likewise.
	* configure.ac (libgcc_cv_solaris_crts): Likewise.
	* configure: Regenerate.

	gcc:
	* config.gcc (*-*-solaris2*): Enable default_use_cxa_atexit since
	Solaris 11.  Update comment.
	* configure.ac (gcc_cv_ld_pid): Adapt comment for Solaris 12
	renaming.
	* config/sol2.h (STARTFILE_SPEC): Likewise.
	* configure: Regenerate.

	gcc/testsuite:
	* lib/target-supports.exp (check_effective_target_pie): Adapt
	comment for Solaris 12 renaming.

	* gcc.dg/torture/pr60092.c: Remove *-*-solaris2.11* dg-xfail-run-if.

From-SVN: r254737

    
    With the change in the Solaris release model (no more major releases
    like Solaris 12 but only minor ones like 11.4), the Solaris 12
    references in GCC need to be adapted.
    
    Patch by Rainer Orth.
    
    Reviewed-on: https://go-review.googlesource.com/77490

From-SVN: r254729

    
    For a misaligned address force a panic rather than assuming that reading
    from the address 0 will cause one.
    
    Reviewed-on: https://go-review.googlesource.com/69850

From-SVN: r254610

    
    "make check" runs make recursively to check each package. Pass
    the flags through. So it is possible to run "make check" with
    different settings easily.
    
    Reviewed-on: https://go-review.googlesource.com/76029

From-SVN: r254475

    
    Also fix 64-bit DWARF to read a 64-bit abbrev offset in the
    compilation unit.
    
    This is a backport of https://golang.org/cl/71171, which will be in
    the Go 1.10 release, to the gofrontend copy. Doing it now because AIX
    is pretty much the only system that uses 64-bit DWARF.
    
    Reviewed-on: https://go-review.googlesource.com/72250

From-SVN: r253955

    
    Reviewed-on: https://go-review.googlesource.com/69891

From-SVN: r253664

    
    Patch by Rainer Orth.
    
    Reviewed-on: https://go-review.googlesource.com/67111

From-SVN: r253292

    
    We don't need them, and this fixes the build when using uClibc-ng
    1.0.26 as originally reported at
    https://gcc.gnu.org/ml/gcc-patches/2017-09/msg01930.html
    
    Reviewed-on: https://go-review.googlesource.com/67110

From-SVN: r253291

    
    Reviewed-on: https://go-review.googlesource.com/64550

From-SVN: r253231

    
    Reviewed-on: https://go-review.googlesource.com/64592

From-SVN: r253105

    
    With -enable-static=no we don't build non-pic objects, but libgotool.a
    is built from non-pic objects.  Build the packages that go into
    libgotool.a in static mode in all cases.
    
    Also ensure that internal test packages are built, since nothing
    explicitly depended on them.
    
    Reviewed-on: https://go-review.googlesource.com/65050

From-SVN: r253042

    
    Reviewed-on: https://go-review.googlesource.com/64990

From-SVN: r253022

    
    Reviewed-on: https://go-review.googlesource.com/64552

From-SVN: r253021

    
    Reviewed-on: https://go-review.googlesource.com/64551

From-SVN: r253016

    
    In the 1.9 upgrade I took out the word "goroutine" from a traceback
    showing a goroutine running in C code, to let TestCgoNumGoroutine
    pass.  However, it turns out that some code is actually checking for
    that string; for example,
    https://github.com/grpc/grpc-go/blob/master/test/leakcheck/leakcheck.go#L44
    So keep the message the same, and change the test.
    
    Reviewed-on: https://go-review.googlesource.com/64850

From-SVN: r252991

    
    Reviewed-on: https://go-review.googlesource.com/64110

From-SVN: r252953

    
    Patch by Rainer Orth.
    
    Reviewed-on: https://go-review.googlesource.com/64170

From-SVN: r252866

    
    Reviewed-on: https://go-review.googlesource.com/63753

From-SVN: r252767

    
    In preparation for upgrading libgo to the 1.9 release, this
    approximately incorporates https://golang.org/cl/37661 and
    https://golang.org/cl/38351.
    
    CL 37661 changed the gc compiler such that the select statement simply
    returns an integer which is then used as the argument for a switch.
    Since gccgo already worked that way, this just adjusts the switch code
    to look like the gc switch code by removing the explicit case index
    expression and calculating it from the order of calls to selectsend,
    selectrecv, and selectdefault.
    
    CL 38351 simplifies the channel code by not passing the unused channel
    type descriptor pointer.
    
    Reviewed-on: https://go-review.googlesource.com/62730

From-SVN: r252749

    
    This adds much of https://golang.org/cl/35731 and
    https://golang.org/cl/35732 to the gofrontend code.
    
    This is a step toward updating libgo to the 1.9 release.  The
    gofrontend already supports type aliases, and this is required for
    correct support of type aliases when used as embedded fields.
    
    The change to expressions.cc is to handle the << 1, used for the
    newly renamed offsetAnon field, in the constant context used for type
    descriptor initialization.
    
    Reviewed-on: https://go-review.googlesource.com/62710

From-SVN: r252746

    
    Patch by Rainer Orth.
    
    Reviewed-on: https://go-review.googlesource.com/60732

From-SVN: r251574

    
    Reviewed-on: https://go-review.googlesource.com/59913

From-SVN: r251440

    
    Reviewed-on: https://go-review.googlesource.com/59912

From-SVN: r251439

    
    Reviewed-on: https://go-review.googlesource.com/59911

From-SVN: r251436

    
    Reviewed-on: https://go-review.googlesource.com/59910

From-SVN: r251435

    
    Reviewed-on: https://go-review.googlesource.com/57550

From-SVN: r251420

	PR go/81893
    runtime: only use PPC GNU/Linux register code on little endian
    
    Reportedly the current code builds on little endian but not big endian.
    
    Fixes https://gcc.gnu.org/PR81893.
    
    Reviewed-on: https://go-review.googlesource.com/57110

From-SVN: r251188

    
    Reviewed-on: https://go-review.googlesource.com/56910

From-SVN: r251182

    
    Using -funwind-tables is necessary to permit Go code to correctly
    throw a panic through C code.  This hasn't been necessary in the past
    as -funwind-tables is the default on x86.  However, it is not the
    default for PPC AIX.
    
    Reviewed-on: https://go-review.googlesource.com/56650

From-SVN: r251179

    
    Reviewed-on: https://go-review.googlesource.com/54170

From-SVN: r251133

    
    Fix dumpregs on i386, implement dumpregs for PPC Linux/AIX, get PC on AIX.
    
    Reviewed-on: https://go-review.googlesource.com/56170

From-SVN: r251127

    
    Libgo's implementation of math.Ldexp declared the libc "ldexp" as
    taking an 'int' exponent argument, which is not quite right for 64-bit
    platforms (exp arg is always int32); this could yield incorrect
    results for exponent values outside the range of Minint32/Maxint32.
    Fix by upating the type for the libc version of ldexp, and adding
    guards to screen for out-of-range exponents.
    
    Fixes #21323.
    
    Reviewed-on: https://go-review.googlesource.com/54250

From-SVN: r250992

    
    Patch from Uros Bizjak.
    
    Reviewed-on: https://go-review.googlesource.com/53350

From-SVN: r250873

	PR go/81617
    libgo: change mksigtab to recognize glibc 2.26 NSIG expression
    
    Fixes golang/go#21147
    Fixes GCC PR 81617
    
    Reviewed-on: https://go-review.googlesource.com/52611

From-SVN: r250858

    
    Patch by Uros Bizjak.
    
    Reviewed-on: https://go-review.googlesource.com/51370

From-SVN: r250588

    
    We unconditionally set _FILE_OFFSET_BITS to 64 in configure.ac, so we
    should unconditionally call the statfs64 and fstatfs64 functions.
    These functions should be available on all versions of GNU/Linux since 2.6.
    On 64-bit systems they are aliased to statfs/fstatfs, and on 32-bit
    systems they use the 64-bit data structures.
    
    Fixes golang/go#20922
    
    Reviewed-on: https://go-review.googlesource.com/50635

From-SVN: r250443

    
    If getSiginfo does not know how to determine the PC, it will call
    runtime_callers. That can happen in a thread that was started by
    non-Go code, in which case the TLS variable g will not be set, in
    which case runtime_lock will crash.
    
    Avoid the problem by using atomic operations for the lock. This is OK
    since creating a backtrace state is fast and never blocks.
    
    The test case is TestCgoExternalThreadSIGPROF in the runtime package
    on a system that getSiginfo doesn't handle specially.
    
    Updates golang/go#20931
    
    Reviewed-on: https://go-review.googlesource.com/50650

From-SVN: r250439

    
    Updates golang/go#20931
    
    Reviewed-on: https://go-review.googlesource.com/50631

From-SVN: r250436

    
    Allocate enough stack space so that the test will work on a system
    that does not support split stacks.
    
    This test is actually not very meaningful for gccgo at present, but it
    doesn't hurt to keep running it.
    
    Updates golang/go#20931
    
    Reviewed-on: https://go-review.googlesource.com/50630

From-SVN: r250433

re PR go/81451 (missing futex check - libgo/runtime/thread-linux.c:12:0 futex.h:13:12: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘long’)

	PR go/81451
    runtime: inline runtime_osinit
    
    We had two identical copies of runtime_osinit. They set runtime_ncpu,
    a variable that is no longer used. Removing that leaves us with two lines.
    Inline those two lines in the two places the function was called.
    
    This fixes GCC PR 81451.
    
    Reviewed-on: https://go-review.googlesource.com/48862

From-SVN: r250326