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203 Commits

Author SHA1 Message Date
Rob Pike
ec913c42b3 tweak pcs in traceback so they point to calling line instead of line after call. 
R=rsc
DELTA=2  (0 added, 0 deleted, 2 changed)
OCL=19745
CL=19745
 2008-11-20 17:19:45 -08:00
Russ Cox
9b8a6dc7da change array slice error to include bounds 
$ 6.out
slice[5:12] of [10] array
throw: array slice
SIGSEGV: segmentation violation

R=r
DELTA=15  (13 added, 0 deleted, 2 changed)
OCL=19540
CL=19580
 2008-11-19 09:35:36 -08:00
Russ Cox
75647d2024 First pieces of malloc. 
R=r
DELTA=756  (754 added, 0 deleted, 2 changed)
OCL=19266
CL=19378
 2008-11-17 12:32:35 -08:00
Ken Thompson
e875055461 switch 
R=r
OCL=19288
CL=19288
 2008-11-14 16:24:27 -08:00
Russ Cox
f8b20e4083 add cov, prof to default build; clean up compiler warnings 
R=r
DELTA=8  (1 added, 0 deleted, 7 changed)
OCL=19245
CL=19245
 2008-11-14 10:57:48 -08:00
Ken Thompson
9795c9e727 temp fix for map not multiple of 8 
R=r
OCL=19166
CL=19166
 2008-11-13 13:20:18 -08:00
Ken Thompson
bc0b4f0d2a mike's map code 
R=r
OCL=19146
CL=19146
 2008-11-13 10:35:44 -08:00
Rob Pike
2f4d35ffb9 converting uint bits back into floats 
R=rsc
DELTA=32  (32 added, 0 deleted, 0 changed)
OCL=19084
CL=19091
 2008-11-12 11:51:34 -08:00
Russ Cox
600ee088b6 * accept all NaNs, not just the one sys.NaN() returns. 
* use union, not cast, to convert between uint64 and float64,
  to avoid possible problems with gcc in future.

R=r
DELTA=75  (39 added, 15 deleted, 21 changed)
OCL=18926
CL=18926
 2008-11-10 15:17:56 -08:00
Russ Cox
e8766354a4 handle Inf, NaN in float print 
R=r
DELTA=48  (23 added, 14 deleted, 11 changed)
OCL=18707
CL=18922
 2008-11-10 14:54:10 -08:00
Ken Thompson
9b827cf9a0 bug in select default 
R=r
OCL=18741
CL=18741
 2008-11-06 17:50:28 -08:00
Rob Pike
335a5236e7 add sys.float32bits, sys.float64bits 
R=rsc
DELTA=21  (21 added, 0 deleted, 0 changed)
OCL=18709
CL=18718
 2008-11-06 15:48:36 -08:00
Ken Thompson
79fbbe37a7 select default 
R=r
OCL=18646
CL=18646
 2008-11-05 21:50:28 -08:00
Russ Cox
a6af484328 more runtime support for chan select default 
R=ken
OCL=18630
CL=18630
 2008-11-05 18:04:24 -08:00
Russ Cox
b69e80d8dd runtime support for default in select. 
assumes cas->send == 2 for default case.

R=ken
OCL=18628
CL=18628
 2008-11-05 17:57:18 -08:00
Russ Cox
d6a7cefd1e allow any type at all in sys.unreflect; 
accomodate empty type table in 6l.

R=r
DELTA=10  (2 added, 8 deleted, 0 changed)
OCL=18601
CL=18605
 2008-11-05 16:09:12 -08:00
Russ Cox
6f07ec721a new interface error messages 
package main
	func main() {
		var i interface { } = 1;
		a := i.(*[]byte);
	}

interface { } is int, not *[]uint8
throw: interface conversion

	package main
	func main() {
		var i interface { };
		a := i.(*[]byte);
	}

interface is nil, not *[]uint8
throw: interface conversion

	package main
	func main() {
		i := sys.unreflect(0, "*bogus");
		a := i.(*[]byte);
	}

interface { } is *bogus, not *[]uint8
throw: interface conversion

R=r
DELTA=30  (24 added, 2 deleted, 4 changed)
OCL=18548
CL=18565
 2008-11-05 13:05:01 -08:00
Russ Cox
1983121bbb 6g interface changes: 
* allow conversion between nil interface and any type.
	* mark signatures as DUPOK so that multiple .6 can
	  contain sigt.*[]byte and only one gets used.

R=ken
OCL=18538
CL=18542
 2008-11-05 11:27:50 -08:00
Russ Cox
e5d9a5c9f0 runtime support for interface ok, 
whatever the final syntax ends up being.

R=ken
OCL=18414
CL=18414
 2008-11-03 17:34:37 -08:00
Russ Cox
47caf6424c 6l: generate gotypesigs on demand. 
add sys.unreflect, which uses gotypesigs.

R=r
DELTA=170  (152 added, 12 deleted, 6 changed)
OCL=18396
CL=18404
 2008-11-03 16:03:12 -08:00
Russ Cox
c249a8de32 rename various magic names. 
sigi and sigt:
	sys·sigi_inter -> sigi·inter
	sys·sigt_int -> sigt·int
	Package·sigt_Type -> sigt·Package.Type

	local type T in file x.go T_x -> T·x
	second one T_x_1 -> T·x·1

	method names M on T  T_M -> T·M

correctly handle local embedded types

init functions are the only place left that use underscores

R=ken
OCL=18377
CL=18377
 2008-11-03 15:36:08 -08:00
Rob Pike
63f38d62ac in traceback, handle the case where we've called through a nil function pointer 
R=rsc
DELTA=7  (7 added, 0 deleted, 0 changed)
OCL=18372
CL=18372
 2008-11-03 15:22:15 -08:00
Ken Thompson
2f5a05a859 bug 113 
R=r
OCL=18081
CL=18081
 2008-10-29 16:55:52 -07:00
Russ Cox
44b0ecc5ca 6g: use full type in sigt[0].name 
sys: add sys.reflect
runtime: add canfail flag for later

R=ken
OCL=17583
CL=17583
 2008-10-21 15:38:26 -07:00
Ken Thompson
1bf38484d1 interface on arbitrary types 
global signatures for basic types

R=r
OCL=17238
CL=17240
 2008-10-15 17:08:10 -07:00
Rob Pike
5933dbda3a delete hack for interface equality now that it supported by the 6g compiler 
R=rsc
DELTA=21  (0 added, 21 deleted, 0 changed)
OCL=17123
CL=17136
 2008-10-14 16:33:11 -07:00
Ken Thompson
e2e8aa0ee1 interface equality (strings specifically) 
R=r
OCL=17134
CL=17134
 2008-10-14 16:10:44 -07:00
Ken Thompson
edb1412c50 interface equality 
R=r
OCL=17116
CL=17118
 2008-10-14 15:08:23 -07:00
Russ Cox
900e076d21 handle zeroed interface in ifaceI2I 
R=r
OCL=16938
CL=16938
 2008-10-10 16:21:50 -07:00
Russ Cox
827dcb86b7 add sys.BUG_intereq to compare interfaces for equality 
R=r
OCL=16929
CL=16929
 2008-10-10 15:30:32 -07:00
Russ Cox
b4f8e01acb more interface checks: 
- pointer to interface cannot have methods
	- record type names for better runtime error

R=r,ken
DELTA=85  (80 added, 0 deleted, 5 changed)
OCL=16658
CL=16722
 2008-10-08 09:21:57 -07:00
Rob Pike
7ee60b174d sys.stringtorune doesn't need a length parameter. 
R=rsc
DELTA=7  (0 added, 0 deleted, 7 changed)
OCL=16600
CL=16630
 2008-10-07 10:03:34 -07:00
Ken Thompson
8877d27b40 interfaces of all types 
R=r
OCL=16462
CL=16462
 2008-10-03 16:12:21 -07:00
Ken Thompson
f21e731c71 added printn and panicn 
prints that insert spaces and new line

R=r
OCL=16370
CL=16370
 2008-10-02 14:38:07 -07:00
Russ Cox
1f1ae404f8 for loops in hashmap. 
a few missing FLUSH.

R=ken
OCL=16221
CL=16221
 2008-09-30 14:02:53 -07:00
Ken Thompson
89ac5618ac toward methods on any type 
R=r
OCL=16068
CL=16068
 2008-09-28 20:22:31 -07:00
Ken Thompson
ce0f1dee6f change print(float) from 5 to 7 sig digits 
R=r
OCL=16045
CL=16045
 2008-09-27 13:33:50 -07:00
Russ Cox
72154b042f go/acid/go 
R=r
DELTA=99  (95 added, 1 deleted, 3 changed)
OCL=15983
CL=15992
 2008-09-26 14:10:26 -07:00
Russ Cox
d448d18cb4 test and fix non-blocking chan ops on buffered chans 
R=ken
DELTA=68  (19 added, 0 deleted, 49 changed)
OCL=15966
CL=15969
 2008-09-26 11:47:04 -07:00
Russ Cox
afd04fdb98 cleanup; sys.sleep can go. 
R=r
OCL=15786
CL=15792
 2008-09-24 15:28:03 -07:00
Russ Cox
a61bb95497 get rid of per-G Note, avoids per-G kernel semaphore on Mac. 
2.14u 19.82s 22.17r 	 6.out 100000	# old
1.87u 0.43s 2.31r 	 6.out 100000	# new

R=r
OCL=15762
CL=15772
 2008-09-24 14:13:07 -07:00
Russ Cox
5ff12f871f only use mach kernel semaphores for actual contention. 
running rob's powser p.go:

3.21u 2.58s 5.80r 	 6.out	# old
1.48u 0.05s 1.54r 	 6.out	# new

R=r
OCL=15748
CL=15750
 2008-09-24 10:25:28 -07:00
Russ Cox
5383e28ea0 change string([]byte) to pass array, rather than &a[0], 
to string convert.  if the byte array has length 0,
the computation of &a[0] throws an index bounds error.

for fixed size arrays, this ends up invoking arrays2d
unnecessarily, but it works.

R=ken
DELTA=304  (44 added, 28 deleted, 232 changed)
OCL=15674
CL=15678
 2008-09-22 20:12:15 -07:00
Ken Thompson
adaec0c4f4 vectors bug 
R=r
OCL=15664
CL=15664
 2008-09-22 16:58:30 -07:00
Russ Cox
ebd1eef41e implement spec: when main.main returns, the program exits 
R=r
DELTA=9  (7 added, 2 deleted, 0 changed)
OCL=15628
CL=15643
 2008-09-22 13:47:59 -07:00
Russ Cox
fb40f88c40 test cleanup 
- do not print tracebacks if $GOTRACEBACK=0
	- set GOTRACEBACK=0 during tests
	- filter out pc numbers in errors

R=r
DELTA=70  (22 added, 30 deleted, 18 changed)
OCL=15618
CL=15642
 2008-09-22 13:47:53 -07:00
Ken Thompson
8231e94520 now method/interface code 
R=r
OCL=15627
CL=15627
 2008-09-22 12:16:19 -07:00
Ken Thompson
8a9752dcfb another async select bug 
R=r
OCL=15599
CL=15599
 2008-09-20 19:56:40 -07:00
Ken Thompson
1da727a31f fix bugs in asynch select 
R=r
OCL=15586
CL=15586
 2008-09-19 20:43:30 -07:00
Russ Cox
72e3b204e4 add gobuild. 
use gobuild-generated Makefile for math and os.
other makefile tweaks.
move math/main.go to test/math.go

R=r
OCL=15529
CL=15537
 2008-09-19 11:55:46 -07:00
Russ Cox
a67258f380 proper handling of signals. 
do not run init on g0.

R=r
DELTA=161  (124 added, 23 deleted, 14 changed)
OCL=15490
CL=15497
 2008-09-18 15:56:46 -07:00
Russ Cox
68209ed5e3 fix printing of -(1<<63) 
R=r
OCL=15441
CL=15445
 2008-09-17 14:08:52 -07:00
Russ Cox
9350ef4eea add network listening & tests 
R=r,presotto
OCL=15410
CL=15440
 2008-09-17 13:49:23 -07:00
Ken Thompson
2119294af9 methods on any type 
-- but only *struct tested

R=r
OCL=15326
CL=15326
 2008-09-14 16:57:55 -07:00
Ken Thompson
1ae08bee90 Automated g4 rollback of changelist 15312. 
*** Reason for rollback ***

  <enter reason for rollback>

*** Original change description ***

correct signal name thru package rename

R=r
OCL=15313
CL=15313
 2008-09-13 14:49:36 -07:00
Ken Thompson
28b9702741 correct signal name thru package rename 
R=r
OCL=15312
CL=15312
 2008-09-13 14:46:19 -07:00
Rob Pike
c1ad0509ee remove special trap-handling code for array out of bounds - 
compiler doesn't generate them any more

R=ken
OCL=15309
CL=15309
 2008-09-13 13:13:36 -07:00
Ken Thompson
904d4045d3 1 got rid if static 'fn wo return' test 
2 added dynamic calls to throw for array bounds
  and 'fn wo return'
3 small optimization on index[constant]

R=r
OCL=15281
CL=15281
 2008-09-12 16:48:35 -07:00
Rob Pike
ab9f27b227 fix up linux trap handling - INTB 5 gives SEGV 
R=rsc
OCL=15244
CL=15244
 2008-09-12 12:35:06 -07:00
Rob Pike
e9047d1fc2 fix silly portability bug 
R=gri
OCL=15238
CL=15238
 2008-09-12 12:17:13 -07:00
Rob Pike
6e8dbc2051 - catch trace traps 
- disassemble the instructions in a trace trap to see if it's a run-time trap
- if so, print relevant info
- avoid double-printing traceback on panic

R=ken,rsc
DELTA=66  (50 added, 7 deleted, 9 changed)
OCL=15199
CL=15224
 2008-09-12 09:44:41 -07:00
Ken Thompson
47580f79b4 bug075 
R=r
OCL=15192
CL=15192
 2008-09-11 19:09:25 -07:00
Russ Cox
376898ca8b go threads for OS X 
R=r
OCL=14944
CL=15013
 2008-09-09 11:50:14 -07:00
Rob Pike
24838a2df6 fix bug in stack limit calculation - was setting limit reg in wrong place. 
R=ken
OCL=14981
CL=14981
 2008-09-08 19:30:14 -07:00
Ken Thompson
66a603c986 arrays 
R=r
OCL=14603
CL=14603
 2008-08-27 17:28:30 -07:00
Rob Pike
968701beb1 - fix signedness bug in sys.Inf() 
- add NaN, Inf printing to fmt
- fix a couple of bugs in fmt
- add a test for fmt

R=ken
OCL=14092
CL=14092
 2008-08-11 15:04:54 -07:00
Russ Cox
f7f6329e26 kill trailing white space. 
(apparently my first attempt didn't work.)

R=r
OCL=13888
CL=13888
 2008-08-05 14:21:42 -07:00
Russ Cox
96824000ed * comment, clean up scheduler 
* rewrite lock implementation to be correct
  (tip: never assume that an algorithm you found
  in a linux man page is correct.)
* delete unneeded void* arg from clone fn
* replace Rendez with Note
* comment mal better
* use 6c -w, fix warnings
* mark all assembly functions 7

R=r
DELTA=828  (338 added, 221 deleted, 269 changed)
OCL=13884
CL=13886
 2008-08-05 14:18:47 -07:00
Rob Pike
5adbacb8e7 allow pointers as keys in maps, treating them the same as ints - ptr eq not value equality 
R=ken,gri
OCL=13879
CL=13879
 2008-08-05 11:14:35 -07:00
Russ Cox
c8dee2770d acid. works only on Linux for now 
R=r
DELTA=7031  (6906 added, 113 deleted, 12 changed)
OCL=13847
CL=13852
 2008-08-04 17:24:25 -07:00
Russ Cox
d28acc42ec first cut at multithreading. works on Linux. 
* kick off new os procs (machs) as needed
* add sys·sleep for testing
* add Lock, Rendez
* properly lock mal, sys·newproc, scheduler
* linux syscall arg #4 is in R10, not CX
* chans are not multithread-safe yet
* multithreading disabled by default;
  set $gomaxprocs=2 (or 1000) to turn it on

This should build on OS X but may not.
Rob and I will fix soon after submitting.

TBR=r
OCL=13784
CL=13842
 2008-08-04 16:43:49 -07:00
Russ Cox
873ba78b79 Remove doubled #else 
R=r
DELTA=4  (2 added, 2 deleted, 0 changed)
OCL=13775
CL=13779
 2008-08-03 00:34:05 -07:00
Russ Cox
4feda71b7d slightly gratuitous reorg of scheduler code 
* rename select (very loaded word) nextgoroutine
	* separate out "enter scheduler" (sys·gosched)
	  from the scheduler itself (scheduler)

R=r
APPROVED=r
DELTA=36  (17 added, 15 deleted, 4 changed)
OCL=13772
CL=13774
 2008-08-02 22:34:04 -07:00
Rob Pike
ebec99179f fix a comment 
fix a register name

R=gri
OCL=13548
CL=13548
 2008-07-29 15:17:27 -07:00
Rob Pike
3835e01d97 print tracebacks for all goroutines, not just the crashing one 
R=ken
OCL=13518
CL=13518
 2008-07-28 11:29:41 -07:00
Ken Thompson
120827284e select/chan 
R=r
DELTA=517  (137 added, 98 deleted, 282 changed)
OCL=13495
CL=13495
 2008-07-26 14:21:21 -07:00
Ken Thompson
949ab5c7ff select 
R=r
APPROVED=r
DELTA=41  (24 added, 13 deleted, 4 changed)
OCL=13480
CL=13480
 2008-07-25 17:03:27 -07:00
Ken Thompson
e963cba8a1 select 
R=r
APPROVED=r
DELTA=147  (94 added, 14 deleted, 39 changed)
OCL=13477
CL=13477
 2008-07-25 15:55:12 -07:00
Ken Thompson
ece3e57c85 read select 
R=r
APPROVED=r
DELTA=120  (108 added, 0 deleted, 12 changed)
OCL=13468
CL=13468
 2008-07-25 11:58:26 -07:00
Ken Thompson
cb9b1038db select 
R=r
APPROVED=r
DELTA=638  (433 added, 21 deleted, 184 changed)
OCL=13426
CL=13438
 2008-07-24 15:57:30 -07:00
Ken Thompson
b78676a49d start of select 
random bugs fixed

SVN=128149
 2008-07-20 20:13:07 -07:00
Ken Thompson
90da636c15 init filename vs pkgname 
SVN=128117
 2008-07-19 14:20:46 -07:00
Ken Thompson
fb3af53f4e initialization 
SVN=128115
 2008-07-19 13:38:29 -07:00
Ken Thompson
9e2d185040 div bug 
[]ptr bug
proc reuses old g* structures
differnt assignment of offsets to parameters

SVN=127888
 2008-07-17 15:03:39 -07:00
Ken Thompson
e7d549fbd7 new (more fifo) schedulint algorithm 
newproc will reuse dead procs

SVN=127565
 2008-07-16 13:50:23 -07:00
Ken Thompson
44b8934d35 back out last chan fix 
allow print of pointers

SVN=127548
 2008-07-16 12:44:21 -07:00
Ken Thompson
90da10d7ac chan bool offset bug 
SVN=127537
 2008-07-16 11:46:33 -07:00
Ken Thompson
ac048ce7f4 new chan syntax 
SVN=127437
 2008-07-15 21:07:59 -07:00
Rob Pike
cbdaa10f8c add linkage for writefile on darwin 
SVN=127208
 2008-07-15 08:27:50 -07:00
Rob Pike
c870ac239e add sys.writefile; support for darwin only in this CL 
SVN=127153
 2008-07-14 20:54:55 -07:00
Ken Thompson
2d9ff40774 chan asynch 
SVN=127121
 2008-07-14 17:41:38 -07:00
Rob Pike
bad8c3d5dd stop traceback when pc leaves text segment 
SVN=127088
 2008-07-14 16:00:44 -07:00
Ken Thompson
af58f17af9 synch chan 
SVN=127057
 2008-07-14 14:34:27 -07:00
Ken Thompson
526200345c synch chan 
SVN=127055
 2008-07-14 14:33:39 -07:00
Ken Thompson
97cab903af chan 
SVN=126959
 2008-07-13 16:20:27 -07:00
Ken Thompson
594175d0b5 chan 
SVN=126958
 2008-07-13 14:29:46 -07:00
Ken Thompson
3f982aeaf6 morestack magic number 
automatically generated in 6g and 6c,
manually set in 6a. format is
	TEXT	a(SB),, $a-b
where a is auto size and b is parameter size

SVN=126946
 2008-07-12 17:16:22 -07:00
Rob Pike
2da9783e2b preserve AX across stack jump so C routines return correct value when triggering morestack. 
SVN=126935
 2008-07-12 11:30:53 -07:00
Rob Pike
b07e084a99 delete dead code 
SVN=126932
 2008-07-11 19:40:03 -07:00
Rob Pike
c8bce425b0 fix comment 
SVN=126931
 2008-07-11 19:37:47 -07:00