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Commit Graph

1137 Commits

Author SHA1 Message Date
Russ Cox
5b1b2ba9c7 runtime: new allocation strategy for amd64
Do not reserve virtual address space.
Instead, assume it will be there when we need it,
and crash loudly if that assumption is violated.
Reserving the address space gets charged to
ulimit -v, which exceeds commonly set limits.

http://groups.google.com/group/golang-dev/msg/7c477af5f5a8dd2c

R=r, niemeyer
CC=golang-dev
https://golang.org/cl/4148045
2011-02-09 14:38:33 -05:00
Robert Griesemer
459da21603 issue 1402: added test case
R=rsc
CC=golang-dev
https://golang.org/cl/4079063
2011-02-03 20:35:14 -08:00
Eoghan Sherry
cf63e34b1d gc: correct rounding of denormal constants
Fixes #1463.

R=rsc
CC=golang-dev
https://golang.org/cl/4079060
2011-02-02 22:36:54 -05:00
Russ Cox
8a2891fc56 gc: select receive bug fix
Affects receive using := when new variable escapes to heap.

Fixes #1468.

R=ken2
CC=golang-dev
https://golang.org/cl/4119052
2011-02-02 18:34:09 -05:00
Russ Cox
1fa4173444 5l, 8l: pass stack frame size to morestack when needed
Shame on me: I fixed the same bug in 6l in 8691fcc6a66e
(https://golang.org/cl/2609041) and neglected
to look at 5l and 8l to see if they were affected.

On the positive side, the check I added in that CL is the
one that detected this bug.

Fixes #1457.

R=ken2
CC=golang-dev
https://golang.org/cl/3981052
2011-02-01 18:34:41 -05:00
Rob Pike
eea18d959e log: rename Exit* to Fatal*
This aligns the naming scheme with the testing package and
also lets govet work on more logging calls.

R=rsc
CC=golang-dev
https://golang.org/cl/4001048
2011-02-01 12:47:35 -08:00
Russ Cox
05b9050bda gc: handle invalid name in type switch
Fixes #1453.

R=ken2
CC=golang-dev
https://golang.org/cl/4125043
2011-02-01 14:00:36 -05:00
Russ Cox
0e47460915 gc: fix send precedence
Test and fix case found by Robert.
Add receive inside send to tree too.

R=ken2
CC=golang-dev
https://golang.org/cl/3973052
2011-02-01 08:29:21 -05:00
Russ Cox
cb584707af gc: remove non-blocking send, receive syntax
R=ken2
CC=golang-dev
https://golang.org/cl/4126043
2011-01-31 18:52:16 -05:00
Russ Cox
f4e76d8309 replace non-blocking send, receive syntax with select
R=golang-dev, nigeltao, niemeyer, r
CC=golang-dev
https://golang.org/cl/4079053
2011-01-31 18:36:28 -05:00
Russ Cox
7247d6b96f test: another select test
R=r
CC=golang-dev
https://golang.org/cl/4004044
2011-01-30 15:46:02 -05:00
Russ Cox
504da53c85 runtime: select bug
The sanity checking in pass 2 is wrong
when a select is offering to communicate in
either direction on a channel and neither case
is immediately ready.

R=ken2
CC=golang-dev
https://golang.org/cl/3991047
2011-01-28 17:17:38 -05:00
Russ Cox
4608feb18b runtime: simpler heap map, memory allocation
The old heap maps used a multilevel table, but that
was overkill: there are only 1M entries on a 32-bit
machine and we can arrange to use a dense address
range on a 64-bit machine.

The heap map is in bss.  The assumption is that if
we don't touch the pages they won't be mapped in.

Also moved some duplicated memory allocation
code out of the OS-specific files.

R=r
CC=golang-dev
https://golang.org/cl/4118042
2011-01-28 15:03:26 -05:00
Russ Cox
7e84666df1 gc: clearer error for struct == struct
cmp6.go:48: invalid operation: t3 == t3 (operator == not defined on struct)

Fixes #1438.

R=ken2
CC=golang-dev
https://golang.org/cl/4003045
2011-01-21 18:15:59 -05:00
Russ Cox
27c74d3499 spec, runtime, tests: send on closed channel panics
Close of closed channel panics.
Receive from closed channel never panics,
even if done repeatedly.

Fixes #1349.
Fixes #1419.

R=gri, iant, ken2, r, gri1, r2, iant2, rog, albert.strasheim, niemeyer, ejsherry
CC=golang-dev
https://golang.org/cl/3989042
2011-01-21 15:07:13 -05:00
Russ Cox
0a5fc261b6 test/chan/doubleselect: fix various races
There were duplicate closes and missing closes,
with the result that the program was rarely testing
as much as it seemed to be.  Now it finishes.

R=r
CC=golang-dev
https://golang.org/cl/4008046
2011-01-21 15:06:44 -05:00
Ian Lance Taylor
68683a6a61 test: s/float/float64/
Otherwise gccgo gives an extra error message not matched by errchk.

R=adg, rsc
CC=golang-dev
https://golang.org/cl/4053042
2011-01-21 08:37:58 -08:00
Russ Cox
50fe459ce2 6g: fix uint64(uintptr(unsafe.Pointer(&x)))
Fixes #1417.

R=ken2
CC=golang-dev
https://golang.org/cl/4079042
2011-01-20 12:50:35 -05:00
Russ Cox
f2b5a07453 delete float, complex - code changes
also:
	cmplx -> complex
	float64(1.0) -> 1.0
	float64(1) -> 1.0

R=gri, r, gri1, r2
CC=golang-dev
https://golang.org/cl/3991043
2011-01-19 23:09:00 -05:00
Russ Cox
bcd910cfe2 runtime: add per-pause gc stats
R=r, r2
CC=golang-dev
https://golang.org/cl/3980042
2011-01-19 13:41:42 -05:00
Russ Cox
12307008e9 runtime: print signal information during panic
$ 6.out
panic: runtime error: invalid memory address or nil pointer dereference

[signal 11 code=0x1 addr=0x0 pc=0x1c16]

runtime.panic+0xa7 /Users/rsc/g/go/src/pkg/runtime/proc.c:1089
	runtime.panic(0xf6c8, 0x25c010)
runtime.panicstring+0x69 /Users/rsc/g/go/src/pkg/runtime/runtime.c:88
	runtime.panicstring(0x24814, 0x0)
runtime.sigpanic+0x144 /Users/rsc/g/go/src/pkg/runtime/darwin/thread.c:465
	runtime.sigpanic()
main.f+0x16 /Users/rsc/x.go:5
	main.f()
main.main+0x1c /Users/rsc/x.go:9
	main.main()
runtime.mainstart+0xf /Users/rsc/g/go/src/pkg/runtime/amd64/asm.s:77
	runtime.mainstart()
runtime.goexit /Users/rsc/g/go/src/pkg/runtime/proc.c:149
	runtime.goexit()

R=r
CC=golang-dev
https://golang.org/cl/4036042
2011-01-18 14:15:11 -05:00
Anthony Martin
661bcb773b gc: fix typed constant declarations
Fixes #1411.

R=rsc, gri, ejsherry
CC=golang-dev
https://golang.org/cl/4035042
2011-01-18 11:24:49 -05:00
Russ Cox
2281ca169c gc: fix &^=
Fixes #1394.

R=ken2
CC=golang-dev
https://golang.org/cl/3879041
2011-01-06 11:21:18 -05:00
Anthony Martin
94df1a067c gc: return constant floats for parts of complex constants
Fixes #1369.

R=rsc
CC=golang-dev
https://golang.org/cl/3731046
2011-01-05 13:12:30 -05:00
Patrick Gavlin
4e5a59591b gc: rewrite complex /= to l = l / r.
Fixes #1368.

R=rsc, ejsherry
CC=golang-dev
https://golang.org/cl/3811042
2011-01-04 13:14:17 -05:00
Rob Pike
aa78cec69c test/bench: update numbers for regex-dna after speedup to regexp
R=rsc
CC=golang-dev
https://golang.org/cl/3634042
2010-12-16 12:38:14 -08:00
Russ Cox
0c54225b51 remove nacl
The recent linker changes broke NaCl support
a month ago, and there are no known users of it.

The NaCl code can always be recovered from the
repository history.

R=adg, r
CC=golang-dev
https://golang.org/cl/3671042
2010-12-15 11:49:23 -05:00
Anthony Martin
85f5bb8216 test/bench: a couple fixes to timing.sh
- Skip the gccgo tests if we don't have it
- Add -lm so nbody.c will compile
- Pass 2098 to the meteor test (cf. the shootout site)

R=rsc, r, iant
CC=golang-dev
https://golang.org/cl/3619042
2010-12-15 09:47:13 -05:00
Russ Cox
1b31c37428 gc: issue 1231
Fixes #1231.

R=ken2
CC=golang-dev
https://golang.org/cl/3627041
2010-12-13 16:51:19 -05:00
Russ Cox
dc9a3b2791 gc: align structs according to max alignment of fields
cc: same
runtime: test cc alignment (required moving #define of offsetof to runtime.h)
fix bug260

Fixes #482.
Fixes #609.

R=ken2, r
CC=golang-dev
https://golang.org/cl/3563042
2010-12-13 16:22:19 -05:00
Russ Cox
9e26c4bd1a gc: complex(0)
Fixes #1232.

R=ken2
CC=golang-dev
https://golang.org/cl/3621041
2010-12-13 15:34:45 -05:00
Russ Cox
603f9feeec gc: another shift bug
Fixes #1316.

R=ken2
CC=golang-dev
https://golang.org/cl/3575042
2010-12-13 13:42:51 -05:00
Ryan Hitchman
f980577064 gc: syntax error for incomplete chan type
Fixes #932.

R=rsc
CC=golang-dev
https://golang.org/cl/3515041
2010-12-09 13:41:24 -05:00
Ryan Hitchman
062406bc64 throughout: simplify two-variable ranges with unused second variable
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/3529041
2010-12-08 21:36:56 -08:00
Eoghan Sherry
cab83650d1 gc: skip undefined symbols in import .
Fixes #1284.

R=ken3, rsc
CC=golang-dev
https://golang.org/cl/3210041
2010-12-07 16:16:01 -05:00
Eoghan Sherry
802360edb4 errchk: accept multiple source files
R=rsc, iant
CC=golang-dev
https://golang.org/cl/3217042
2010-12-07 15:28:21 -05:00
Eoghan Sherry
6aa85d1cbe gc: fix method offsets of anonymous interfaces
Fixes #1290.

R=rsc
CC=golang-dev
https://golang.org/cl/3259043
2010-12-07 12:56:26 -05:00
Robert Griesemer
5a9ad8b9e3 go/ast: use token.Pos instead of token.Position; adjust all dependent code
Specifically:

	* lib/godoc:
	- provide file set (FSet) argument to formatters where needed

	* src/cmd:
	- cgo, ebnflint, godoc, gofmt, goinstall: provide file set (fset) where needed
	- godoc: remove local binary search with sort.Search (change by rsc),
	  extract file set for formatters

	* src/pkg:
	- exp/eval: remove embedded token.Position fields from nodes and replace
	  with named token.Pos fields; add corresponding Pos() accessor methods
	- go/token: added file.Line(), changed signature of File.Position()

	* test/fixedbugs/:
	- bug206.go: change test to not rely on token.Pos details

	* added various extra comments
	* Runs all.bash
	* gofmt formats all of src, misc w/o changes
	* godoc runs

	* performance:
	- The new version of godoc consumes about the same space after indexing
	  has completed, but indexing is half the speed. Significant space savings
	  are expected from smaller ASTs, but since they are thrown away after a
	  file has been indexed, this is not visible anymore. The slower indexing
	  time is due to the much more expensive computation of line information.
	  However, with the new compressed position information, indexing can be
	  rewritten and simplified. Furthermore, computing the line info can be
	  done more efficiently.

        New godoc, immediately after indexing completed (best of three runs):

	  PID COMMAND      %CPU   TIME   #TH #PRTS #MREGS RPRVT  RSHRD  RSIZE  VSIZE
	44381 godoc        0.0%  0:38.00   4    19    149  145M   184K   148M   176M

	2010/12/03 17:58:35 index updated (39.231s, 18505 unique words, 386387 spots)
	2010/12/03 17:58:35 bytes=90858456 footprint=199182584
	2010/12/03 17:58:36 bytes=47858568 footprint=167295224

	Old godoc, immediately after indexing completed (best of three runs):

	  PID COMMAND      %CPU   TIME   #TH #PRTS #MREGS RPRVT  RSHRD  RSIZE  VSIZE
	23167 godoc        0.0%  0:22.02   4    17    132  129M   184K   132M   173M

	2010/12/03 14:51:32 index updated (24.892s, 18765 unique words, 393830 spots)
	2010/12/03 14:51:32 bytes=66404528 footprint=163907832
	2010/12/03 14:51:32 bytes=46282224 footprint=163907832

	The different numbers for unique words/spots stem from the fact the the
	two workspaces are not exactly identical. The new godoc maintains a large
	file set data structure during indexing which (probably) is the reason
	for the larger heap (90858456 vs 66404528) before garbage collection.

R=rsc, r
CC=golang-dev
https://golang.org/cl/3050041
2010-12-06 14:23:18 -08:00
Kyle Consalus
009aebdba8 Removed bytes.Add and bytes.AddByte; we now have 'append'.
Changed all uses of bytes.Add (aside from those testing bytes.Add) to append(a, b...).
Also ran "gofmt -s" and made use of copy([]byte, string) in the fasta benchmark.

R=golang-dev, r, r2
CC=golang-dev
https://golang.org/cl/3302042
2010-12-01 11:59:13 -08:00
Russ Cox
132e5435e3 gc: line comments may end in EOF
R=ken2
CC=golang-dev
https://golang.org/cl/2907041
2010-11-04 16:04:04 -04:00
Rob Pike
c33289238e test/ken/convert.go: add conversion torture test
(written by ken)

R=ken2
CC=golang-dev
https://golang.org/cl/2823042
2010-11-01 17:49:06 -07:00
Evan Shaw
5bf420f0c8 pidigits: Remove TODO, minor improvements
I tried adding a Scale method to big.Int and it didn't make any noticeable
difference, so I'm removing my TODO.

Also got rid of a few obvious allocations that I missed earlier for a modest
improvement (~5%).

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/2711043
2010-10-30 20:16:44 -07:00
Robert Griesemer
e79ebb008f test for append() built-in
R=r, rsc
CC=golang-dev
https://golang.org/cl/2777041
2010-10-28 08:14:31 -07:00
Russ Cox
0f28983afa test copy([]byte, string)
R=r, r2
CC=golang-dev
https://golang.org/cl/2740041
2010-10-26 08:36:23 -07:00
Russ Cox
8fff9166f6 arm: enable all tests
ARM functionality is now completely working.
(Or if it's not, we'll fix it.)

R=ken2
CC=golang-dev
https://golang.org/cl/2738041
2010-10-25 21:25:13 -07:00
Rob Pike
f57f8b6f68 test/bench: update numbers
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/2631041
2010-10-20 17:43:57 -07:00
Russ Cox
0db8d3df4c gc: select receive with implicit conversion
Fixes #1172.

R=ken2
CC=golang-dev
https://golang.org/cl/2615041
2010-10-20 16:38:25 -04:00
Russ Cox
8599a83727 runtime: correct iteration of large map values
The hash_next_and_deref was a dreg from a
previous large value scheme.

Fixes #1163.

R=r, r2
CC=golang-dev
https://golang.org/cl/2369043
2010-10-06 11:54:41 -04:00
Russ Cox
01385b400d gc: ... bug
Fixes #1165.

R=ken2
CC=golang-dev
https://golang.org/cl/2339042
2010-10-06 11:12:30 -04:00
Russ Cox
a3c682267f gc: various bugs
Fixes #1016.
Fixes #1152.
Fixes #1153.

R=ken2
CC=golang-dev
https://golang.org/cl/2344042
2010-10-03 11:50:44 -04:00