Russ Cox feb6131b1a cmd/compile: add -linkobj flag to allow writing object file in two parts ... This flag is experimental and the semantics may change even after Go 1.7 is released. There are no changes to code not using the flag. The first part is for reading by future compiles. The second part is for reading by the final link step. Splitting the file this way allows distributed build systems to ship the compile-input part only to compile steps and the linker-input part only to linker steps. The first part is basically just the export data, and the second part is basically everything else. The overall files still have the same broad structure, so that existing tools will work with both halves. It's just that various pieces are empty in the two halves. This also copies the two bits of data the linker needed from export data into the object header proper, so that the linker doesn't need any export data at all. That eliminates a TODO that was left for switching to the binary export data. (Now the linker doesn't need to know about the switch.) The default is still to write out a combined output file. Nothing changes unless you pass -linkobj to the compiler. There is no support in the go command for -linkobj, since the go command doesn't copy objects around. The expectation is that other build systems (like bazel, say) might take advantage of this. The header adjustment and the option for the split output was intended as part of the zip archives, but the zip archives have been cut from Go 1.7. Doing this to the current archives both unblocks one step in the switch to binary export data and enables alternate build systems to experiment with the new flag using the Go 1.7 release. Change-Id: I8b6eab25b8a22b0a266ba0ac6d31e594f3d117f3 Reviewed-on: https://go-review.googlesource.com/22500 Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>		2016-05-09 17:31:45 +00:00
..
bench	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
bugs	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
chan	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
ddd2.dir	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
dwarf	test: make rundir match compiledir/errorcheckdir.	2013-01-11 22:00:48 +01:00
fixedbugs	cmd/compile: fix binary export of composite literals with implicit types	2016-05-09 06:16:07 +00:00
import2.dir	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
import4.dir	test: adjust gccgo expected import errors	2015-10-07 14:37:44 +00:00
interface	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
intrinsic.dir	cmd/compile: added some intrinsics to SSA back end	2016-03-28 16:29:59 +00:00
ken	all: fix spelling mistakes	2016-04-03 17:03:15 +00:00
method4.dir	cmd/gc: do not omit wrapper for expression (interface{...}).F	2014-01-07 13:26:48 +01:00
safe	test: adapt old-style tests to new flag parsing.	2013-01-11 22:05:46 +01:00
stress	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
syntax	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
64bit.go	cmd/gc: Error out on division by constant zero.	2013-01-30 20:21:08 +01:00
235.go	…
alg.go	test: add test that required algs get generated	2016-04-24 21:36:52 +00:00
alias.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
alias1.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
append.go	…
args.go	…
assign.go	cmd/gc: prohibit short variable declarations containing duplicate symbols	2014-10-06 17:16:39 -04:00
assign1.go	…
atomicload.go	cmd/compile: keep value use counts in SSA	2016-03-17 04:20:02 +00:00
bigalg.go	test: ensure all failing tests exit nonzero.	2013-02-12 13:17:49 -05:00
bigmap.go	…
blank.go	test: revert changes made for Go SSA interpreter test.	2013-10-08 14:36:20 -04:00
blank1.go	cmd/compile: don't allow blank method declarations on builtins	2015-12-02 18:26:38 +00:00
bom.go	…
bombad.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
bounds.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
chancap.go	…
chanlinear.go	runtime: test for linear enqueue/dequeue behavior	2014-12-08 22:18:17 +00:00
char_lit.go	…
char_lit1.go	…
checkbce.go	cmd/compile: bce when max and limit are consts	2016-04-11 16:01:22 +00:00
clearfat.go	[dev.power64] 9g: fix under-zeroing in clearfat	2014-10-31 11:08:27 -04:00
closedchan.go	…
closure.go	…
closure1.go	cmd/gc: capture variables by value	2015-01-29 13:07:30 +00:00
closure2.go	cmd/gc: fix capturing by value for range statements	2015-02-03 15:48:48 +00:00
cmp.go	Fix several out of date references to 4g/5g/6g/8g/9g.	2015-06-26 03:38:21 +00:00
cmp6.go	cmd/gc: do not consider length zero arrays as comparable.	2014-01-31 00:30:56 +01:00
cmplx.go	cmd/gc: reject complex calls with mismatched argument types.	2013-03-11 22:55:14 +01:00
cmplxdivide.c	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
cmplxdivide.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
cmplxdivide1.go	…
complit.go	…
complit1.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
compos.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
const.go	cmd/compile: allow huge rsh in constants arithmetic	2015-08-21 20:27:22 +00:00
const1.go	test: match gccgo error messages	2013-12-12 17:18:12 -08:00
const2.go	…
const3.go	…
const4.go	all: link to https instead of http	2015-07-11 14:36:33 +00:00
const5.go	all: link to https instead of http	2015-07-11 14:36:33 +00:00
const6.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
convT2X.go	…
convert.go	…
convert1.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
convert3.go	…
convlit.go	cmd/internal/gc: unsafe.Pointer constants may only be converted to uintptr	2015-05-07 23:54:28 +00:00
convlit1.go	…
copy.go	test: ensure all failing tests exit nonzero.	2013-02-12 13:17:49 -05:00
crlf.go	…
ddd.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
ddd1.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
ddd2.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
decl.go	test: ensure all failing tests exit nonzero.	2013-02-12 13:17:49 -05:00
declbad.go	…
defer.go	test: ensure all failing tests exit nonzero.	2013-02-12 13:17:49 -05:00
deferfin.go	runtime: combine small NoScan allocations	2014-01-24 22:35:11 +04:00
deferprint.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
deferprint.out	…
divide.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
divmod.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
empty.go	…
env.go	…
eof.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
eof1.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
errchk	Fix several out of date references to 4g/5g/6g/8g/9g.	2015-06-26 03:38:21 +00:00
escape.go	test: ensure all failing tests exit nonzero.	2013-02-12 13:17:49 -05:00
escape2.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
escape2n.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
escape3.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
escape4.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
escape5.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
escape_array.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
escape_because.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
escape_calls.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
escape_closure.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
escape_field.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
escape_iface.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
escape_indir.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
escape_level.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
escape_map.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
escape_param.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
escape_slice.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
escape_struct_param1.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
escape_struct_param2.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
escape_struct_return.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
fibo.go	Fix whitespace (use blanks consistently).	2014-12-08 22:22:58 +00:00
finprofiled.go	runtime: fix finalization and profiling of tiny allocations	2015-11-03 18:57:18 +00:00
float_lit.go	test: ensure all failing tests exit nonzero.	2013-02-12 13:17:49 -05:00
float_lit2.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
float_lit3.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
floatcmp.go	test: ensure all failing tests exit nonzero.	2013-02-12 13:17:49 -05:00
for.go	…
func.go	…
func1.go	cmd/gc: ensure unique parameter and result names in function types	2013-03-15 15:24:13 -04:00
func2.go	…
func3.go	…
func4.go	…
func5.go	…
func6.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
func7.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
func8.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
funcdup.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
funcdup2.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
gc.go	…
gc1.go	…
gc2.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
gcstring.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
goprint.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
goprint.out	…
goto.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
heapsampling.go	test: really force heap profile update in heapsampling.go	2015-11-12 18:32:13 +00:00
helloworld.go	…
helloworld.out	…
if.go	…
import.go	…
import1.go	test: match gccgo import error messages	2013-12-12 19:02:11 -08:00
import2.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
import4.go	…
import5.go	…
index.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
index0.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
index1.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
index2.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
indirect.go	…
indirect1.go	…
init.go	…
init1.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
initcomma.go	…
initialize.go	…
initializerr.go	test: add "duplicate" struct map key test	2012-12-17 11:05:58 -05:00
initloop.go	cmd/compile: use []*Node instead of NodeList in sinit	2015-09-05 02:25:01 +00:00
inline.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
int_lit.go	…
intcvt.go	…
intrinsic.go	cmd/compile: added some intrinsics to SSA back end	2016-03-28 16:29:59 +00:00
iota.go	…
label.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
label1.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
linkmain.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
linkmain_run.go	test: fix linkmain test	2015-12-17 23:36:13 +00:00
linkobj.go	cmd/compile: add -linkobj flag to allow writing object file in two parts	2016-05-09 17:31:45 +00:00
linkx.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
linkx_run.go	test: print output on link -X failure	2016-04-20 17:37:35 +00:00
literal.go	test: ensure all failing tests exit nonzero.	2013-02-12 13:17:49 -05:00
live.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
live1.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
live2.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
live_ssa.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
live_syscall.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
loopbce.go	cmd/compile: bce when max and limit are consts	2016-04-11 16:01:22 +00:00
mallocfin.go	…
map.go	test/mapnan.go: add regression test for non-empty interfaces.	2014-08-06 17:02:55 -04:00
map1.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
maplinear.go	test: make maplinear more robust	2014-10-27 18:59:02 -04:00
method.go	test: a number of fixes.	2013-02-11 18:20:52 -05:00
method1.go	cmd/compile: ignore receiver parameters in Eqtype	2016-03-17 00:38:15 +00:00
method2.go	cmd/gc: fix method values whose receiver is an unnamed interface.	2013-08-29 10:00:58 +02:00
method3.go	…
method4.go	…
method5.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
named.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
named1.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
nil.go	test: ensure all failing tests exit nonzero.	2013-02-12 13:17:49 -05:00
nilcheck.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
nilptr.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
nilptr2.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
nilptr3.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
nilptr3_ssa.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
nilptr4.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
nosplit.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
nul1.go	…
opt_branchlikely.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
parentype.go	…
peano.go	…
phiopt.go	cmd/compile: introduce bool operations.	2016-04-25 20:43:04 +00:00
print.go	runtime: move built-in print routines to go.	2014-07-31 13:48:48 -07:00
print.out	runtime: move built-in print routines to go.	2014-07-31 13:48:48 -07:00
printbig.go	…
printbig.out	…
prove.go	cmd/compile: transform some Phis into Or8.	2016-04-19 22:04:30 +00:00
range.go	cmd/gc: implement 'for range x {'	2014-07-16 19:27:10 -04:00
recover.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
recover1.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
recover2.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
recover3.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
recover4.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
reflectmethod1.go	cmd/compile: track reflect.Type.Method in deadcode	2016-03-11 21:19:20 +00:00
reflectmethod2.go	cmd/compile: track reflect.Type.Method in deadcode	2016-03-11 21:19:20 +00:00
reflectmethod3.go	cmd/compile: track reflect.Type.Method in deadcode	2016-03-11 21:19:20 +00:00
reflectmethod4.go	cmd/link: treat reflect.Value.Method like Call	2016-03-11 22:07:02 +00:00
rename.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
rename1.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
reorder.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
reorder2.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
return.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
rotate.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
rotate0.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
rotate1.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
rotate2.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
rotate3.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
run.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
rune.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
runtime.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
shift1.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
shift2.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
sieve.go	…
sigchld.go	test: skip SIGCHLD test on Plan 9	2014-01-29 09:28:23 +01:00
sigchld.out	…
simassign.go	…
sinit.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
sinit_run.go	all: retire architecture letter in file names, public API	2015-05-21 17:32:17 +00:00
sizeof.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
slice3.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
slice3err.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
slicecap.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
sliceopt.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
solitaire.go	…
stack.go	…
strength.go	cmd/compile: generalize strength reduction of mulq	2016-03-30 22:27:13 +00:00
string_lit.go	test: add []rune case to string_lit.go	2013-12-12 17:17:02 -08:00
stringrange.go	…
struct0.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
switch.go	cmd/gc: disallow fallthrough in final case of switch	2013-03-15 00:35:09 -04:00
switch2.go	cmd/compile: address several more 1.6 TODOs in parser	2015-11-21 07:21:23 +00:00
switch3.go	…
switch4.go	cmd/gc: disallow fallthrough in final case of switch	2013-03-15 00:35:09 -04:00
tinyfin.go	runtime: fix finalization and profiling of tiny allocations	2015-11-03 18:57:18 +00:00
torture.go	cmd/8g: don't allocate a register early for cap(CHAN).	2014-07-01 09:20:51 +02:00
turing.go	…
typecheck.go	cmd/gc: silence assignment errors to undefined symbols	2014-01-03 21:03:20 +01:00
typecheckloop.go	cmd/compile: convert typecheck_stack to []*Node	2015-09-06 23:50:51 +00:00
typeswitch.go	…
typeswitch1.go	…
typeswitch2.go	…
typeswitch3.go	…
undef.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
utf.go	…
varerr.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
varinit.go	…
writebarrier.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
zerodivide.go	test: ensure all failing tests exit nonzero.	2013-02-12 13:17:49 -05:00