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53e69e1db5
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200 Commits

Author SHA1 Message Date
Russ Cox
53e69e1db5 various race conditions. 
R=r
DELTA=43  (29 added, 5 deleted, 9 changed)
OCL=23608
CL=23611
 2009-01-27 14:01:20 -08:00
Ken Thompson
47ab1c1e99 spelling 
R=r
OCL=23602
CL=23602
 2009-01-27 13:23:28 -08:00
Ken Thompson
1e1cc4eb57 defer 
R=r
OCL=23592
CL=23592
 2009-01-27 12:03:53 -08:00
Russ Cox
1ce17918e3 gc #0. mark and sweep collector. 
R=r,gri
DELTA=472  (423 added, 2 deleted, 47 changed)
OCL=23522
CL=23541
 2009-01-26 17:37:05 -08:00
Russ Cox
9ed2960de8 in hash implementation, if data >= 8, align to 8. 
R=ken
OCL=23519
CL=23521
 2009-01-26 15:36:39 -08:00
Russ Cox
9b6d385cb5 interface speedups and fixes. 
more caching, better hash functions, proper locking.
fixed a bug in interface comparison too.

R=ken
DELTA=177  (124 added, 10 deleted, 43 changed)
OCL=23491
CL=23493
 2009-01-26 12:36:21 -08:00
Russ Cox
a7f6d4066e implement new restrictions on what 
can be compared/hashed.

R=r
DELTA=351  (201 added, 80 deleted, 70 changed)
OCL=23423
CL=23481
 2009-01-26 09:56:42 -08:00
Ken Thompson
3338c71fc6 bug in async select read 
buganizer 1589219
channel is returning same values multiple times

R=r
OCL=23447
CL=23447
 2009-01-24 15:58:44 -08:00
Russ Cox
1f8a40d85c move math routines from package sys to package math, 
though they still build in src/runtime.

use cgo instead of hand-written wrappers.

R=r
DELTA=740  (289 added, 300 deleted, 151 changed)
OCL=23326
CL=23331
 2009-01-22 16:23:44 -08:00
Russ Cox
61590c4c44 disallow P.t for lowercase t and not our package P. 
implement hiding lowercase methods m in
signatures by adding in a hash of the package name
to the type hash code.

remove remaining checks for internally-generated _ names:
they are all gone.

R=ken
OCL=23236
CL=23238
 2009-01-21 14:51:57 -08:00
Russ Cox
0183baaf44 * delete export 
* rename init functions

R=ken
OCL=23122
CL=23126
 2009-01-20 14:40:00 -08:00
Russ Cox
360962420c casify, cleanup sys 
R=r
OCL=22978
CL=22984
 2009-01-16 14:58:14 -08:00
Ian Lance Taylor
2b57a1124e Add cgo2c program to translate mixed Go/C code into C. This 
lets us use a single source file for both 6c and gcc, handling
the incompatible handling of return values.

R=rsc
DELTA=649  (613 added, 35 deleted, 1 changed)
OCL=22682
CL=22730
 2009-01-14 08:21:25 -08:00
Ian Lance Taylor
1a0bde24ae Add USED declarations for SysUnused parameters. 
R=rsc
DELTA=2  (2 added, 0 deleted, 0 changed)
OCL=22640
CL=22642
 2009-01-13 10:24:06 -08:00
Ian Lance Taylor
9b8da82d72 Tweak code to make it easier to compile with gcc. 
+ Use macros to name symbols with non-ASCII characters.
  + Make some variables unsigned, because they are compared
    against unsigned values.
  + Fix a few void* pointers to be MLink*.

R=rsc
DELTA=94  (44 added, 3 deleted, 47 changed)
OCL=22303
CL=22638
 2009-01-13 09:55:24 -08:00
Russ Cox
0c32430534 free(nil) 
R=iant
DELTA=3  (3 added, 0 deleted, 0 changed)
OCL=22467
CL=22471
 2009-01-09 16:22:13 -08:00
Russ Cox
a3ed4e716a add sys.caller 
R=r
DELTA=139  (101 added, 38 deleted, 0 changed)
OCL=22462
CL=22466
 2009-01-09 15:52:43 -08:00
Russ Cox
484ba939d2 update sys.reflect and sys.unreflect to accomodate 
the possibility of large objects in interface values.

R=r
DELTA=171  (97 added, 22 deleted, 52 changed)
OCL=22382
CL=22382
 2009-01-09 00:17:46 -08:00
Russ Cox
20595ac4b0 many interface bug fixes. 
also, after
	func g() (int, int)
	func f(int, int)
allow
	f(g())
and
	func h() (int, int) { return g() }

R=ken
DELTA=356  (252 added, 26 deleted, 78 changed)
OCL=22319
CL=22325
 2009-01-08 14:30:00 -08:00
Ian Lance Taylor
7843a14df1 Remove duplicate typedef declarations. 
R=rsc
DELTA=7  (0 added, 7 deleted, 0 changed)
OCL=22267
CL=22281
 2009-01-08 09:45:42 -08:00
Russ Cox
c3077f7606 [] and struct in interfaces. 
other [] cleanup.

convert() is gone.

R=r
DELTA=352  (144 added, 68 deleted, 140 changed)
OCL=21660
CL=21662
 2008-12-19 17:11:54 -08:00
Russ Cox
eee50ae1ac chan and map of [] and struct 
R=r
DELTA=192  (145 added, 8 deleted, 39 changed)
OCL=21609
CL=21614
 2008-12-19 12:05:22 -08:00
Russ Cox
da0a7d7b8f malloc bug fixes. 
use malloc by default.
free stacks.

R=r
DELTA=424  (333 added, 29 deleted, 62 changed)
OCL=21553
CL=21584
 2008-12-19 03:13:39 -08:00
Russ Cox
d47d888ba6 convert *[] to []. 
R=r
OCL=21563
CL=21571
 2008-12-18 22:37:22 -08:00
Ken Thompson
9786f69f74 print(array) 
R=r
OCL=21570
CL=21570
 2008-12-18 22:17:05 -08:00
Ken Thompson
4026500d18 arrays 
R=r
OCL=21564
CL=21564
 2008-12-18 20:06:28 -08:00
Russ Cox
e29ce175ed malloc in runtime (not used by default) 
R=r
DELTA=1551  (1550 added, 0 deleted, 1 changed)
OCL=21404
CL=21538
 2008-12-18 15:42:28 -08:00
Ken Thompson
61e0fcce8a small bug 
new printarray

R=r
OCL=21429
CL=21429
 2008-12-17 12:13:19 -08:00
Ken Thompson
8f53bc0612 new convention, direction bit is 
always left cleared. changed
compiler generated memcpy and
memset to assume CLD.

R=r
OCL=21215
CL=21215
 2008-12-15 15:07:35 -08:00
Russ Cox
7df571aef7 off-by-one error assigning src files to functions 
R=r
DELTA=2  (2 added, 0 deleted, 0 changed)
OCL=21178
CL=21187
 2008-12-15 10:50:41 -08:00
Russ Cox
5bb0c4f88b check printf format strings 
R=r
DELTA=18  (16 added, 0 deleted, 2 changed)
OCL=21177
CL=21185
 2008-12-15 10:50:33 -08:00
Russ Cox
7ca5a0d323 correct arg register in bsdthread_create 
R=r
DELTA=1  (0 added, 0 deleted, 1 changed)
OCL=21040
CL=21176
 2008-12-15 08:56:32 -08:00
Ken Thompson
e956429166 string hash function faults w empty string 
fixes maps[""]

R=r
OCL=20909
CL=20911
 2008-12-10 13:28:46 -08:00
Russ Cox
3935610e35 chans and maps of interfaces 
R=r
DELTA=746  (729 added, 1 deleted, 16 changed)
OCL=20858
CL=20858
 2008-12-09 16:16:07 -08:00
Russ Cox
be629138ab use Note sched.stopped correctly 
R=r
DELTA=6  (5 added, 0 deleted, 1 changed)
OCL=20777
CL=20779
 2008-12-08 17:14:08 -08:00
Ken Thompson
26b357ca5b range statement 
R=r
OCL=20667
CL=20667
 2008-12-05 18:24:05 -08:00
Russ Cox
3f8aa662e9 add support for ref counts to memory allocator. 
mark and sweep, stop the world garbage collector
(intermediate step in the way to ref counting).
can run pretty with an explicit gc after each file.

R=r
DELTA=502  (346 added, 143 deleted, 13 changed)
OCL=20630
CL=20635
 2008-12-05 15:24:18 -08:00
Russ Cox
bf3dd3f0ef add mutex.Mutex 
R=r
DELTA=349  (348 added, 0 deleted, 1 changed)
OCL=20380
CL=20472
 2008-12-04 12:51:36 -08:00
Russ Cox
79e1db2da1 add stub routines stackalloc() and stackfree(). 
run oldstack on g0's stack, just like newstack does,
so that oldstack can free the old stack.

R=r
DELTA=53  (44 added, 0 deleted, 9 changed)
OCL=20404
CL=20433
 2008-12-04 08:30:54 -08:00
Russ Cox
dfa5893d4f preparation for exec. 
* syscall:
	add syscall.RawSyscall, which doesn't use sys.entersyscall/sys.exitsyscall
	add syscall.dup2
	add syscall.BytePtrPtr
	add syscall.Rusage, RusagePtr
	add syscall.F_GETFD, F_SETFD, FD_CLOEXEC

* runtime:
	clean up, correct signal handling.
	can now survive (continue running after) a signal.

R=r
DELTA=394  (286 added, 51 deleted, 57 changed)
OCL=20351
CL=20369
 2008-12-03 14:21:28 -08:00
Russ Cox
2b39165f1e clean stack trace code. 
format is unchanged but shows all frames
(old loop stopped one frame early).

wreck=; 6.out
cannot convert type *main.S·interface2 to interface main.I·interface2: missing method Foo
throw: interface conversion
SIGSEGV: segmentation violation
Faulting address: 0x0
pc: 0x256d

throw+0x46 /home/rsc/go/src/runtime/runtime.c:68
	throw(0x863a, 0x0)
hashmap+0x188 /home/rsc/go/src/runtime/iface.c:167
	hashmap(0x8760, 0x0, 0x85b0, 0x0, 0x0, ...)
sys·ifaceT2I+0xa8 /home/rsc/go/src/runtime/iface.c:201
	sys·ifaceT2I(0x8760, 0x0, 0x85b0, 0x0, 0x0, ...)
main·main+0x4e /home/rsc/go/src/runtime/rt0_amd64_darwin.s:87
	main·main()
mainstart+0xf /home/rsc/go/src/runtime/rt0_amd64.s:70
	mainstart()
sys·goexit /home/rsc/go/src/runtime/proc.c:110
	sys·goexit()

R=r
DELTA=44  (5 added, 15 deleted, 24 changed)
OCL=20358
CL=20368
 2008-12-03 14:20:23 -08:00
Russ Cox
d040d26863 new stacktrace format 
sys·gosched+0x25 /home/rsc/go/src/runtime/proc.c:477
	sys·gosched()
chanrecv+0x29e /home/rsc/go/src/runtime/chan.c:277
	chanrecv(0x4be80, 0x0, 0x4cf88, 0x0, 0x0, ...)
sys·chanrecv1+0x5b /home/rsc/go/src/runtime/chan.c:355
	sys·chanrecv1(0x4be80, 0x0)
once·Server+0x26 /home/rsc/go/src/lib/strconv/atoi.go:-41
	once·Server()

the last line is broken (atoi.go:-41) but that's not new.

R=r
DELTA=46  (19 added, 14 deleted, 13 changed)
OCL=20018
CL=20026
 2008-11-25 17:17:54 -08:00
Russ Cox
efc86a74e4 change meaning of $GOMAXPROCS to number of cpus to use, 
not number of threads.  can still starve all the other threads,
but only by looping, not by waiting in a system call.

fix darwin syscall.Syscall6 bug.

fix chanclient bug.

delete $GOMAXPROCS from network tests.

add stripped down printf, sys.printhex to runtime.

R=r
DELTA=355  (217 added, 36 deleted, 102 changed)
OCL=20017
CL=20019
 2008-11-25 16:48:10 -08:00
Russ Cox
a5433369aa use pc/ln table to print source lines in traceback 
r45=; 6.out
oops
panic PC=0x400316
0x400316?zi /home/rsc/go/src/runtime/rt0_amd64_linux.s:83
	main·g(4195177, 0, 4205661, ...)
	main·g(0x400369, 0x402c5d, 0x403e49, ...)
0x40034c?zi /home/rsc/go/src/runtime/x.go:24
	main·f(4205661, 0, 4210249, ...)
	main·f(0x402c5d, 0x403e49, 0x1, ...)
0x400368?zi /home/rsc/go/src/runtime/x.go:37
	main·main(4210249, 0, 1, ...)
	main·main(0x403e49, 0x1, 0x7fff9d894bd8, ...)
0x402c5c?zi /home/rsc/go/src/runtime/rt0_amd64.s:70
	mainstart(1, 0, 2643020760, ...)
	mainstart(0x1, 0x7fff9d894bd8, 0x0, ...)
r45=;

R=r
DELTA=251  (198 added, 25 deleted, 28 changed)
OCL=19965
CL=19979
 2008-11-25 09:23:36 -08:00
Russ Cox
3aa063d79c delete stack mark strings 
in favor of using in-memory copy of symbol table.

$ ls -l pretty pretty.big
-rwxr-xr-x  1 rsc  eng  439516 Nov 21 16:43 pretty
-rwxr-xr-x  1 rsc  eng  580984 Nov 21 16:20 pretty.big
$

R=r
DELTA=446  (238 added, 178 deleted, 30 changed)
OCL=19851
CL=19884
 2008-11-23 17:08:55 -08:00
Rob Pike
60db3d6d3f don't print (incorrect anyway) line numbers in panic. 
R=rsc
DELTA=4  (0 added, 2 deleted, 2 changed)
OCL=19757
CL=19763
 2008-11-20 23:16:31 -08:00
Russ Cox
67addd4e11 symbol table changes 
* add gotype string to symbol table
	* fill in gotype in 6l for known funcs/vars
	* print gotype with nm -t

	* load symbol and pc/ln tables into memory at magic address 0x99<<32.
	* add sys.symdat() to retrieve raw bytes of symbol table
	  and pc/ln table.

most of this should be considered experimental
and subject to change.

R=r
DELTA=157  (128 added, 0 deleted, 29 changed)
OCL=19746
CL=19750
 2008-11-20 17:32:18 -08:00
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