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  1. 23 Jan, 2015 3 commits
  3. 21 Jan, 2015 1 commit
  5. 20 Jan, 2015 2 commits
  7. 19 Jan, 2015 2 commits
  9. 16 Jan, 2015 5 commits
    • runtime: Add __sparc__ case for SETCONTEXT_CLOBBERS_TLS. · 0f59f5c1 
      The glibc setcontext incorrectly modifies %g7 on SPARC.

From Richard Henderson.

From-SVN: r219778
      Ian Lance Taylor committed
    • testing/quick: Revert Alpha specific change. · 20780a00 
      No longer needed now that libffi supports complex types.

From-SVN: r219777
      Ian Lance Taylor committed
    • compiler, reflect, runtime: Use static chain for closures. · 38bf819a 
      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
      Richard Henderson committed
    • net: Restore earlier Solaris-specific version of setKeepAlivePeriod. · 72d7151a 
      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
      Ian Lance Taylor committed
    • runtime: Use a struct, not void, for an empty struct for libffi. · cb054b63 
      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
      Ian Lance Taylor committed
  11. 15 Jan, 2015 5 commits
  13. 10 Jan, 2015 1 commit
  15. 09 Jan, 2015 1 commit
  17. 08 Jan, 2015 1 commit
  19. 06 Jan, 2015 1 commit
  21. 05 Jan, 2015 1 commit
  23. 23 Dec, 2014 1 commit
  25. 17 Dec, 2014 1 commit
  27. 13 Dec, 2014 3 commits
    • re PR go/61258 (gccgo: assertion failure go-map-delete.c:37 [GoSmith]) · 9ac18f8c 
      	PR go/61258
runtime: Don't crash when deleting zero-sized key.

From-SVN: r218702
      Ian Lance Taylor committed
    • testing: Add testing.MainStart function. · e846322c 
      This patches in the Go 1.4 function, for convenience for
people using the Go 1.4 go tool with mainline gccgo.

From-SVN: r218700
      Ian Lance Taylor committed
    • runtime: Clear stack pointers for extra G's. · c31fc2f4 
      Fix an unusual C to Go callback case.  Newly created C threads
call into Go code, forcing the Go code to allocate new M and G
structures.  While executing Go code, the stack is split.  The
Go code then returns.  Returning from a Go callback is treated
as entering a system call, so the G gcstack field is set to
point to the Go stack.  In this case, though, we were called
from a newly created C thread, so we drop the extra M and G
structures.  The C thread then exits.

Then a new C thread calls into Go code, reusing the previously
created M and G.  The Go code requires a larger stack frame,
causing the old stack segment to be unmapped and a new stack
segment allocated.  At this point the gcstack field is
pointing to the old stack segment.

Then a garbage collection occurs.  The garbage collector sees
that the gcstack field is not nil, so it scans it as the first
stack segment.  Unfortunately it points to memory that was
unmapped.  So the program crashes.

The fix is simple: when handling extra G structures created
for callbacks from new C threads, clear the gcstack field.

From-SVN: r218699
      Ian Lance Taylor committed
  29. 12 Dec, 2014 1 commit
  31. 01 Dec, 2014 1 commit
  33. 21 Nov, 2014 1 commit
  35. 14 Nov, 2014 1 commit
    • runtime: set library name based on compiler name · 4c46b5f0 
      Different compilers may have different release cadences or ABI
incompatibilities, so it does not make sense to use the same library
name for runtime libraries intended for different compilers.

This CL causes a libgo built by llgo to receive the name libgo-llgo.
Likewise, libgobegin is named libgobegin-llgo.

From-SVN: r217583
      Ian Lance Taylor committed
  37. 12 Nov, 2014 1 commit
  39. 06 Nov, 2014 2 commits
  41. 05 Nov, 2014 1 commit
  43. 04 Nov, 2014 1 commit
    • libgo: add s390 support · 1fec5f52 
      From Dominik Vogt.

* libgo/go/syscall/libcall_linux_s390.go: New file for s390 support.
* libgo/go/syscall/syscall_linux_s390.go: Ditto.
* libgo/go/syscall/libcall_linux_s390x.go: New file for s390x support.
* libgo/go/syscall/syscall_linux_s390x.go: Ditto.
* libgo/go/runtime/pprof/pprof.go (printStackRecord): Support s390 and
s390x.
* libgo/runtime/runtime.c (runtime_cputicks): Add support for s390 and
s390x
* libgo/mksysinfo.sh: Ditto.
(upcase_fields): New helper function

* libgo/go/debug/elf/file.go (applyRelocations): Implement relocations
on s390x.
(applyRelocationsS390x): Ditto.
(DWARF): Ditto.
* libgo/go/debug/elf/elf.go (R_390): New constants for S390 relocations.
(r390Strings): Ditto.
(String): Helper function for S390 relocations.
(GoString): Ditto.

* libgo/go/reflect/makefuncgo_s390.go: New file.
(S390MakeFuncStubGo): Implementation of s390 abi.
* libgo/go/reflect/makefuncgo_s390x.go: New file.
(S390xMakeFuncStubGo): Implementation of s390x abi.
* libgo/go/reflect/makefunc_s390.c: New file.
(makeFuncStub): s390 and s390x specific implementation of function.
* libgo/go/reflect/makefunc.go
(MakeFunc): Add support for s390 and s390x.
(makeMethodValue): Ditto.
(makeValueMethod): Ditto.
* libgo/Makefile.am (go_reflect_makefunc_s_file): Ditto.
(go_reflect_makefunc_file): Ditto.
* libgo/go/reflect/makefunc_dummy.c: Ditto.
* libgo/runtime/runtime.h (__go_makefunc_can_recover): Export prototype
for use in makefunc_s390.c.
(__go_makefunc_returning): Ditto.

* libgo/go/syscall/exec_linux.go (forkAndExecInChild): Fix order of the
arguments of the clone system call for s390[x].

* libgo/configure.ac (is_s390): New variable.
(is_s390x): Ditto
(LIBGO_IS_S390): Ditto.
(LIBGO_IS_S390X): Ditto.
(GOARCH): Support s390 and s390x.
* libgo/go/go/build/build.go (cgoEnabled): Ditto.
* libgo/go/go/build/syslist.go (goarchList): Ditto.

From-SVN: r217106
      Ian Lance Taylor committed
  45. 03 Nov, 2014 1 commit
  47. 28 Oct, 2014 2 commits