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85 Commits

Author SHA1 Message Date
Russ Cox
6c196015e0 runtime: various arm fixes 
* correct symbol table size
  * do not reorder functions in output
  * traceback
  * signal handling
  * use same code for go + defer
  * handle leaf functions in symbol table

R=kaib, dpx
CC=golang-dev
https://golang.org/cl/884041
 2010-04-05 12:51:09 -07:00
Russ Cox
63e878a750 runtime: make type assertion a runtime.Error, the first of many 
R=r
CC=golang-dev
https://golang.org/cl/805043
 2010-03-31 15:55:10 -07:00
Russ Cox
9b1507b050 gc: implement panic and recover 
R=ken2, r, ken3
CC=golang-dev
https://golang.org/cl/831042
 2010-03-31 11:46:01 -07:00
Russ Cox
83727ccf7c runtime: run deferred calls at Goexit 
baby step toward panic+recover.

Fixes #349.

R=r
CC=golang-dev
https://golang.org/cl/825043
 2010-03-29 21:48:22 -07:00
Russ Cox
4e28cfe970 runtime: run all finalizers in a single goroutine. 
eliminate second pass of mark+sweep
by scanning finalizer table specially.

R=r
CC=golang-dev
https://golang.org/cl/782041
 2010-03-26 14:15:30 -07:00
Russ Cox
6eb251f244 runtime: malloc sampling, pprof interface 
R=r
CC=golang-dev
https://golang.org/cl/719041
 2010-03-24 09:40:09 -07:00
Russ Cox
36c5c5bf40 cc: disallow ... argument unless NOSPLIT is set. 
check that NOSPLIT functions don't use too much stack.
correct some missing NOSPLITs in the runtime library.

Fixes bug reported in
https://groups.google.com/group/golang-nuts/t/efff68b73941eccf

R=ken2
CC=golang-dev
https://golang.org/cl/236041
 2010-03-04 15:34:25 -08:00
Russ Cox
f25586a306 runtime: garbage collection + malloc performance 
* add bit tracking finalizer status, avoiding getfinalizer lookup
  * add ability to allocate uncleared memory

R=iant
CC=golang-dev
https://golang.org/cl/207044
 2010-02-10 00:00:12 -08:00
Russ Cox
62d627f0bc runtime: allow arbitrary return type in SetFinalizer. 
finalize chan, to free OS X semaphore inside Lock.
os: finalize File, to close fd.

Fixes #503.

R=ken2
CC=golang-dev
https://golang.org/cl/204065
 2010-02-08 21:41:54 -08:00
Russ Cox
718be3215f in C and asm, replace pkg·name with ·name 
(eliminate assumption of package global name space,
make code easier to move between packages).

R=r
CC=golang-dev
https://golang.org/cl/194072
 2010-01-25 18:52:55 -08:00
Russ Cox
711088106e runtime: fix bug in preemption checks; was causing "lock count" panics 
R=r
CC=golang-dev
https://golang.org/cl/186078
 2010-01-12 10:03:02 -08:00
Russ Cox
5328df6534 runtime: check for preemption due to garbage collection 
in various already expensive routines.

helps keep cpu utilization up when GOMAXPROCS > 1,
but not a full solution.

http://groups.google.com/group/golang-nuts/t/7a9535c4136d3e2

R=r
CC=golang-dev
https://golang.org/cl/184043
 2010-01-09 09:47:45 -08:00
Russ Cox
74a9fc18f6 runtime: close TODO now that 8c bug is fixed 
R=r
CC=golang-dev
https://golang.org/cl/183138
 2010-01-06 19:24:11 -08:00
Hector Chu
6bfe5f55f4 Ported runtime to Windows. 
R=rsc
CC=golang-dev
https://golang.org/cl/176066
 2010-01-06 17:58:55 -08:00
David Symonds
b5866494ea os/signal: new package 
Fixes #71.

R=rsc, r
https://golang.org/cl/162056
 2009-12-15 18:21:29 -08:00
Russ Cox
19c18358ca runtime: in exitsyscall, avoid confusing garbage collector 
R=r
CC=golang-dev
https://golang.org/cl/178046
 2009-12-14 19:06:20 -08:00
Russ Cox
0d3301a557 runtime: don't touch pages of memory unnecessarily. 
cuts working size for hello world from 6 MB to 1.2 MB.
still some work to be done, but diminishing returns.

R=r
https://golang.org/cl/165080
 2009-12-07 15:52:14 -08:00
Devon H. O'Dell
60b1a17b9e More FreeBSD-touchups. Thundercats are GOOOOO! 
R=rsc
CC=golang-dev
https://golang.org/cl/157074
 2009-11-18 16:51:59 -08:00
Russ Cox
41554e2528 runtime: two trivial but important bug fixes 
R=r
https://golang.org/cl/156059
 2009-11-17 22:00:30 -08:00
Russ Cox
4dfd7fdde5 runtime: do not create new threads during malloc. 
the signal handling stack is a different size than
	the normal stack, so it cannot be allocated using
	the backup stack allocator.

Fixes #250.

R=agl1
CC=golang-dev
https://golang.org/cl/157044
 2009-11-17 14:42:08 -08:00
Russ Cox
fe1e49241c update old comment: things are much better now 
R=r
https://golang.org/cl/152057
 2009-11-10 19:59:22 -08:00
Russ Cox
22a5c78f44 rename sys functions to runtime, 
because they are in package runtime.

another step to enforcing package boundaries.

R=r
DELTA=732  (114 added, 93 deleted, 525 changed)
OCL=35811
CL=35824
 2009-10-15 23:10:49 -07:00
Russ Cox
add89dd1ba stack overflow debugging and fix. 
* in 6l, -K already meant check for stack underflow.
    add -KK to mean double-check stack overflows
    even in nosplit functions.

  * comment out print locks; they deadlock too easily
     but are still useful to put back for special occasions.

  * let runcgo assembly switch to scheduler stack
    without involving scheduler directly.  because runcgo
    gets called from matchmg, it is too hard to keep it
    from being called on other stacks.

R=r
DELTA=94  (65 added, 18 deleted, 11 changed)
OCL=35591
CL=35604
 2009-10-12 10:26:38 -07:00
Russ Cox
93689d863c keep a list of all the M's, 
so that the garbage collector doesn't free them.

R=ken
OCL=35538
CL=35538
 2009-10-09 15:35:33 -07:00
Russ Cox
133a158bd8 8c, 8l dynamic loading support. 
better mach binaries.
cgo working on darwin+linux amd64+386.
eliminated context switches - pi is 30x faster.
add libcgo to build.

on snow leopard:
  - non-cgo binaries work; all tests pass.
  - cgo binaries work on amd64 but not 386.

R=r
DELTA=2031  (1316 added, 626 deleted, 89 changed)
OCL=35264
CL=35304
 2009-10-03 10:37:12 -07:00
Austin Clements
ad9c6f7700 Rudimentary command shell for Ogle. Hack to prevent linker 
from inlining newprocreadylocked.  Fix type bridge's handling
of basic types.  Include interpreter's Thread in bridged
native function calls.

; load . "6.out"
Started 6.out
; BpSet("main·merge")
; ContWait()
breakpoint at 0x400800
=>   400800 main·merge /home/austin/src-go1/usr/austin/ptrace/test/sort.go:19
; bt
=>   400800 main·merge /home/austin/src-go1/usr/austin/ptrace/test/sort.go:19
     400b6a main·mergeSort+0x1be /home/austin/src-go1/usr/austin/ptrace/test/sort.go:34
     448313 goexit /home/austin/src-go1/src/pkg/runtime/proc.c:133
; main.merge.a
{1}

; load . "pid:25753"
Attached to 25753
; bt
=>   479ddf syscall·Syscall+0x24 /home/austin/src-go1/src/pkg/syscall/asm_linux_amd64.s:24
     47c011 syscall·Read+0x5d /home/austin/src-go1/src/pkg/syscall/zsyscall_linux_amd64.go:368
     4119e5 os·*File·Read+0x5f /home/austin/src-go1/src/pkg/os/file.go:122
     427bf3 bufio·*Reader·fill+0x116 /home/austin/src-go1/src/pkg/bufio/bufio.go:105
     428361 bufio·*Reader·ReadSlice+0x195 /home/austin/src-go1/src/pkg/bufio/bufio.go:244
     40204a ogle·Main+0x94 /home/austin/src-go1/usr/austin/ogle/cmd.go:226
     40080f main·main+0xf /home/austin/src-go1/usr/austin/ogle/main.go:6
     41c4b8 mainstart+0xf /home/austin/src-go1/src/pkg/runtime/amd64/asm.s:55
     41531f goexit /home/austin/src-go1/src/pkg/runtime/proc.c:133

R=rsc
APPROVED=rsc
DELTA=433  (420 added, 2 deleted, 11 changed)
OCL=34410
CL=34782
 2009-09-18 09:11:19 -07:00
Russ Cox
fe8ff955e9 add newprocreadylocked for debugger 
R=austin
DELTA=10  (9 added, 0 deleted, 1 changed)
OCL=34163
CL=34166
 2009-08-31 18:10:11 -07:00
Russ Cox
2aea4a063b recycle G structs 
R=r
DELTA=1  (1 added, 0 deleted, 0 changed)
OCL=33887
CL=33904
 2009-08-26 15:26:09 -07:00
Rob Pike
7955490de2 add runtime.GOMAXPROCS, allowing a program to, in effect, set $GOMAXPROCS 
R=rsc
DELTA=29  (28 added, 1 deleted, 0 changed)
OCL=32829
CL=32837
 2009-08-06 13:07:05 -07:00
Russ Cox
052a66babd runtime: fix init scheduling bug. 
if there is a goroutine waiting to run
and the init goroutine enters a system call,
entersyscall was trying to kick off a new
scheduler for the other goroutine, causing
a panic (new goroutines can't run until main.main).

R=r
DELTA=32  (32 added, 0 deleted, 0 changed)
OCL=31982
CL=31982
 2009-07-21 19:43:27 -07:00
Russ Cox
218c393029 add LockOSThread and UnlockOSThread to 
runtime package for use by debugger,
which needs to make sure that all ptrace calls
about a given pid come from the same thread.

R=r
DELTA=175  (90 added, 63 deleted, 22 changed)
OCL=31546
CL=31558
 2009-07-13 17:28:39 -07:00
Russ Cox
bba278a43b reflection for functions 
add channel send type check (thanks austin).
fix type mismatch message.

R=r
DELTA=241  (225 added, 5 deleted, 11 changed)
OCL=31370
CL=31375
 2009-07-08 18:16:09 -07:00
Russ Cox
7343e03c43 runtime: stack growth adjustments, cleanup 
* keep coherent SP/PC in gobuf
	  (i.e., SP that would be in use at that PC)
	* gogocall replaces setspgoto,
	  should work better in presence of link registers
	* delete unused system calls

only amd64; 386 is now broken

R=r
DELTA=548  (183 added, 183 deleted, 182 changed)
OCL=30381
CL=30442
 2009-06-17 15:12:16 -07:00
Russ Cox
36835c7a47 fix garbage collection race: save stack trace 
when changing process state to Gsyscall, not after.

R=r
DELTA=8  (4 added, 3 deleted, 1 changed)
OCL=30320
CL=30325
 2009-06-15 21:30:53 -07:00
Rob Pike
d90e7cbac6 mv src/lib to src/pkg 
tests: all.bash passes, gobuild still works, godoc still works.

R=rsc
OCL=30096
CL=30102
 2009-06-09 09:53:44 -07:00