delta/go-git.git/src/runtime/lfstack_64bit.go, branch dev.garbage

runtime: merge lfstack_amd64.go into lfstack_64bit.go

2016-04-11T06:18:52+00:00

Merge the amd64 lfstack implementation into the general 64 bit
implementation.

Change-Id: Id9ed61b90d2e3bc3b0246294c03eb2c92803b6ca
Reviewed-on: https://go-review.googlesource.com/21707
Run-TryBot: Dave Cheney 
Reviewed-by: Minux Ma

runtime: add s390x support (new files and lfstack_64bit.go modifications)

2016-04-07T18:56:54+00:00

Change-Id: I51c0a332e3cbdab348564e5dcd27583e75e4b881
Reviewed-on: https://go-review.googlesource.com/20946
Reviewed-by: Brad Fitzpatrick 
Run-TryBot: Brad Fitzpatrick 
TryBot-Result: Gobot Gobot

Revert "runtime: merge lfstack{Pack,Unpack} into one file"

2016-04-07T14:05:24+00:00

This broke solaris, which apparently does use the upper 17 bits of the address space.

This reverts commit 3b02c5b1b66df9cdb23d5a3243bb37b2c312ea1b.

Change-Id: Iedfe54abd0384960845468205f20191a97751c0b
Reviewed-on: https://go-review.googlesource.com/21652
Reviewed-by: Dave Cheney

runtime: merge lfstack{Pack,Unpack} into one file

2016-04-07T09:17:22+00:00

Merge the remaining lfstack{Pack,Unpack} implemetations into one file.

unsafe.Sizeof(uintptr(0)) == 4 is a constant comparison so this branch
folds away at compile time.

Dmitry confirmed that the upper 17 bits of an address will be zero for a
user mode pointer, so there is no need to sign extend on amd64 during
unpack, so we can reuse the same implementation as all othe 64 bit
archs.

Change-Id: I99f589416d8b181ccde5364c9c2e78e4a5efc7f1
Reviewed-on: https://go-review.googlesource.com/21597
Run-TryBot: Dave Cheney 
TryBot-Result: Gobot Gobot 
Reviewed-by: Minux Ma

runtime: remove unused return value from lfstackUnpack

2016-04-06T21:04:43+00:00

None of the two places that call lfstackUnpack use the second argument.
This simplifies a followup CL that merges the lfstack{Pack,Unpack}
implementations.

Change-Id: I3c93f6259da99e113d94f8c8027584da79c1ac2c
Reviewed-on: https://go-review.googlesource.com/21595
Run-TryBot: Dave Cheney 
Reviewed-by: Brad Fitzpatrick

runtime: merge 64bit lfstack impls

2016-04-06T06:47:31+00:00

Merge all the 64bit lfstack impls into one file, adjust build tags to
match.

Merge all the comments on the various lfstack implementations for
posterity.

lfstack_amd64.go can probably be merged, but it is slightly different so
that will happen in a followup.

Change-Id: I5362d5e127daa81c9cb9d4fa8a0cc5c5e5c2707c
Reviewed-on: https://go-review.googlesource.com/21591
Run-TryBot: Dave Cheney 
Reviewed-by: Brad Fitzpatrick 
TryBot-Result: Gobot Gobot 
Reviewed-by: Minux Ma