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Commit Graph

116 Commits

Author SHA1 Message Date
Russ Cox
dc43b74eb1 6l, 8l: add trivial hash table for dynamic symbols
R=r
https://golang.org/cl/156085
2009-11-18 15:58:44 -08:00
Russ Cox
91cf0af181 ld: move interpreter string into first block of ELF file
necessary on freebsd.

R=r, dho
CC=golang-dev
https://golang.org/cl/157069
2009-11-18 13:51:05 -08:00
Ken Thompson
26b55e44d9 fix botch
R=rsc
https://golang.org/cl/157046
2009-11-17 14:11:50 -08:00
Ken Thompson
8a6da2f6a0 change a n^2 algorithm in
data initialization to n*log(n)

R=rsc
https://golang.org/cl/158041
2009-11-17 13:59:38 -08:00
Devon H. O'Dell
0489a260da FreeBSD-specific porting work.
cgo/libmach remain unimplemented. However, compilers, runtime,
and packages are 100%. I still need to go through and implement
missing syscalls (at least make sure they're all listed), but
for all shipped functionality, this is done. Ship! ;)

R=rsc, VenkateshSrinivas
https://golang.org/cl/152142
2009-11-17 08:20:58 -08:00
Russ Cox
44e51fad28 6l: fix divide by zero in glibc linker.
repeats 8l change http://code.google.com/p/go/source/detail?r=7594e16b5cf9

Fixes #179.

R=iant
https://golang.org/cl/154145
2009-11-16 17:40:03 -08:00
Russ Cox
18ccbc69f8 tweak documentation of commands
so that first sentence is better for cmd page.

live at http://r45:3456/cmd/

R=gri, r
http://go/go-review/1024034
2009-11-09 11:45:15 -08:00
Robert Griesemer
6f762f5410 gofmt'ed 6l 8l cgo
R=r
http://go/go-review/1020002
2009-11-05 15:33:26 -08:00
Ken Thompson
9c7535432a speed up 6l
hopefully no change

R=rsc
http://go/go-review/1017035
2009-11-04 18:17:57 -08:00
Rob Pike
3fa379e797 document the gc go compilers.
fix the usage message.

R=rsc
CC=go-dev
http://go/go-review/1016033
2009-11-03 22:00:36 -08:00
Rob Pike
dc62c66c73 more command documentation, including nm and prof
R=rsc
http://go/go-review/1017022
2009-11-03 17:46:35 -08:00
Rob Pike
b5ab5d4f12 document the assemblers.
add details about -d and -e flags in the loaders.

R=rsc
CC=go-dev
http://go/go-review/1018031
2009-11-03 16:29:32 -08:00
Rob Pike
2bc63f2367 First steps at command documentation: C compilers and linkers.
Each command gets a doc.go file for godoc to analyze. Its main
element is a package comment.

R=rsc
CC=go-dev
http://go/go-review/1018029
2009-11-03 16:05:47 -08:00
Russ Cox
96ea081c04 6l -e: emit external ELF symbol table.
enough to make nm and oprofile work.

R=r
http://go/go-review/1017016
2009-11-03 14:20:37 -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
c2874976e4 factor portable object+library bits out of 5l/6l/8l into ld
R=r
DELTA=3214  (904 added, 2260 deleted, 50 changed)
OCL=35425
CL=35427
2009-10-07 00:11:59 -07:00
Rob Pike
e6bc5bf5af allow multiple -L options
R=rsc
DELTA=31  (15 added, 3 deleted, 13 changed)
OCL=35364
CL=35364
2009-10-05 21:31:50 -07:00
Russ Cox
11d3805579 clean more
R=r
DELTA=40  (9 added, 3 deleted, 28 changed)
OCL=35277
CL=35305
2009-10-03 10:38:03 -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
Russ Cox
2157025ef0 step toward darwin ffi: factor out macho code
R=r
DELTA=771  (374 added, 287 deleted, 110 changed)
OCL=35187
CL=35187
2009-09-30 17:33:39 -07:00
Russ Cox
0c71ead9e6 convert 8l to new ELF code.
mostly cut and paste from 6l.

R=r
DELTA=930  (525 added, 182 deleted, 223 changed)
OCL=34976
CL=34976
2009-09-24 12:53:35 -07:00
Rob Pike
2a1c9377d9 use /bin/ed to avoid portability issues
R=rsc
DELTA=1  (0 added, 0 deleted, 1 changed)
OCL=34696
CL=34700
2009-09-16 15:14:12 -07:00
Russ Cox
fda0e78b23 fix line numbers, again.
if first function in file was dead code, it was being
discarded along with the file name information for that file.
leave the functions in the master function list longer:
let xfol take the dead code out of the code list,
and let span skip the unreachable functions during output.

before
	throw: sys·mapaccess1: key not in map

	panic PC=0x2e7b20
	throw+0x33 /Users/rsc/go/src/pkg/runtime/runtime.c:65
		throw(0x5834f, 0x0)
	sys·mapaccess1+0x73 /Users/rsc/go/src/pkg/runtime/hashmap.c:769
		sys·mapaccess1(0x2b9bd0, 0x0)
	gob·*Encoder·Encode+0x16b /Users/rsc/go/src/pkg/fmt/print.go:2926
		gob·*Encoder·Encode(0x2bb440, 0x0, 0x558b0, 0x0, 0x2e4be0, ...)
	main·walk+0x331 :1603
		main·walk(0x33a480, 0x0)
	main·walk+0x271 :1596
		main·walk(0x300640, 0x0)
	main·walk+0x271 :1596
		main·walk(0x300520, 0x0)
	main·walk+0x271 :1596
		main·walk(0x300240, 0x0)
	main·walk+0x271 :1596
		main·walk(0x678f8, 0x0)
	main·main+0x22 :1610
		main·main()

after
	throw: sys·mapaccess1: key not in map

	panic PC=0x2e7b20
	throw+0x33 /Users/rsc/go/src/pkg/runtime/runtime.c:65
		throw(0x5834f, 0x0)
	sys·mapaccess1+0x73 /Users/rsc/go/src/pkg/runtime/hashmap.c:769
		sys·mapaccess1(0x2b9bd0, 0x0)
	gob·*Encoder·Encode+0x16b /Users/rsc/go/src/pkg/gob/encoder.go:319
		gob·*Encoder·Encode(0x2bb3c0, 0x0, 0x558b0, 0x0, 0x2e4be0, ...)
	main·walk+0x331 /Users/rsc/dir.go:121
		main·walk(0x2f6ab0, 0x0)
	main·walk+0x271 /Users/rsc/dir.go:114
		main·walk(0x301640, 0x0)
	main·walk+0x271 /Users/rsc/dir.go:114
		main·walk(0x301520, 0x0)
	main·walk+0x271 /Users/rsc/dir.go:114
		main·walk(0x301240, 0x0)
	main·walk+0x271 /Users/rsc/dir.go:114
		main·walk(0x678f8, 0x0)
	main·main+0x22 /Users/rsc/dir.go:128
		main·main()
	mainstart+0xe /Users/rsc/go/src/pkg/runtime/amd64/asm.s:55
		mainstart()
	goexit /Users/rsc/go/src/pkg/runtime/proc.c:133
		goexit()

R=r
DELTA=46  (20 added, 25 deleted, 1 changed)
OCL=34094
CL=34103
2009-08-30 19:21:48 -07:00
Russ Cox
165a99038f ffi -> dynld.
move out of export data into its own section

R=r
DELTA=222  (71 added, 99 deleted, 52 changed)
OCL=33801
CL=33808
2009-08-24 17:27:55 -07:00
Russ Cox
1f177cd8b2 linker work
* use //ffi comments in package import data
    to generate relocation entries and library loads.
  * call initffi in rt0.s if present

R=r
DELTA=117  (91 added, 3 deleted, 23 changed)
OCL=33739
CL=33750
2009-08-24 10:19:31 -07:00
Russ Cox
fd6cdbd807 linker work
* more elf constants from FreeBSD
  * simple relocation demo

R=r
DELTA=410  (354 added, 49 deleted, 7 changed)
OCL=33689
CL=33729
2009-08-23 18:03:14 -07:00
Russ Cox
0e25c1dc6d linker work
* remove now-unused D_SBIG (was for typestrings)
 * rename elf64.[ch] to elf.[ch]
 * pull in elf headers from FreeBSD instead of writing our own
 * emit non-header ELF data in data section
 * stub out a few more ELF sections needed for dynamic loading

R=r
DELTA=1928  (1237 added, 635 deleted, 56 changed)
OCL=33642
CL=33658
2009-08-21 13:08:11 -07:00
Russ Cox
7b29dbb866 symbol bugs.
do not emit unreachable data symbols.

R=austin
DELTA=103  (71 added, 4 deleted, 28 changed)
OCL=33325
CL=33622
2009-08-20 17:33:28 -07:00
Russ Cox
bd4161fcba FFI step 2: can ask for libc.so.6.
introduced explicit "data" symbol instead of etext
to mark beginning of data, so that using larger
alignment (i.e. 4MB like GNU loader) doesn't
confuse garbage collector.

split dodata into dodata and dobss in preparation
for putting the dynamic data + headers in the data
segment instead of stuffed at the beginning of the binary.

R=r
DELTA=52  (37 added, 3 deleted, 12 changed)
OCL=33610
CL=33618
2009-08-20 16:09:38 -07:00
Russ Cox
311c0b4807 6g/6l: add go type information to symbol table.
archive size +70%
  binary size +30%

old

wreck.mtv=; ls -l /Users/rsc/bin/{godoc,gofmt}
-rwxr-xr-x  1 rsc  eng  1487922 Aug 13 13:21 /Users/rsc/bin/godoc
-rwxr-xr-x  1 rsc  eng   995995 Aug 13 13:21 /Users/rsc/bin/gofmt
wreck.mtv=; du -sh $GOROOT/pkg/
9.5M	/home/rsc/go/pkg/
wreck.mtv=;

new

wreck.mtv=; ls -l /Users/rsc/bin/{godoc,gofmt}
-rwxr-xr-x  1 rsc  eng  2014390 Aug 13 14:25 /Users/rsc/bin/godoc
-rwxr-xr-x  1 rsc  eng  1268705 Aug 13 14:25 /Users/rsc/bin/gofmt
wreck.mtv=; du -sh $GOROOT/pkg
 16M	/home/rsc/go/pkg
wreck.mtv=;

R=ken
OCL=33217
CL=33220
2009-08-13 14:41:42 -07:00
Russ Cox
43f29e64a6 mechanism for putting go types into 6.out symbol table.
no types yet.

R=ken
OCL=33142
CL=33146
2009-08-12 18:16:24 -07:00
Russ Cox
57a9bd0ee3 change gotype in symbol table from
character string to machine address.
not filled in, just carved out.

R=austin
DELTA=77  (11 added, 34 deleted, 32 changed)
OCL=33122
CL=33124
2009-08-12 16:14:53 -07:00
Russ Cox
8db677b0a7 delete heuristic left over from incremental compilation
R=r
DELTA=31  (2 added, 28 deleted, 1 changed)
OCL=33064
CL=33112
2009-08-12 14:41:02 -07:00
Ken Thompson
60238e25bf increase from 3 to 11 floating registers
R=rsc
OCL=32947
CL=32947
2009-08-09 16:42:21 -07:00
Russ Cox
002623704f remove 8.out before creating it.
hope this will work around Mac NFS bug
where writing to an 8.out that has crashed
recently sometimes wedges NFS.

R=r
DELTA=3  (3 added, 0 deleted, 0 changed)
OCL=32906
CL=32908
2009-08-07 15:22:09 -07:00
Phil Pennock
d6f89c69c4 Support use of $GOBINDIR to override $HOME/bin
R=r,gri,rsc
APPROVED=rsc
DELTA=53  (12 added, 6 deleted, 35 changed)
OCL=31822
CL=32282
2009-07-28 11:23:24 -07:00
Russ Cox
335b3855c6 a little more 6l cleanup
R=r
DELTA=51  (14 added, 24 deleted, 13 changed)
OCL=31968
CL=31971
2009-07-21 17:18:32 -07:00
Rob Pike
304b7954e8 add a .interp section and fix vaddr in INTERP prog.
R=rsc
DELTA=16  (9 added, 3 deleted, 4 changed)
OCL=31956
CL=31963
2009-07-21 16:31:35 -07:00
Rob Pike
3d42e691b9 make 6l produce dynamically linked binaries (although they are fully statically linked as far
as go is concerned).  the -d flag is now flipped; as on the mac, -d disables dynamic.

much remains to be improved to move the output closer to the gcc format.

R=rsc
DELTA=366  (310 added, 30 deleted, 26 changed)
OCL=31929
CL=31951
2009-07-21 15:10:47 -07:00
Rob Pike
f687fb7e73 6l cleanup: last set of magic numbers for elf64 moved to ld/elf64*.
R=rsc
DELTA=68  (21 added, 28 deleted, 19 changed)
OCL=31857
CL=31864
2009-07-20 13:19:47 -07:00
Rob Pike
fe734d8630 clean up generation of exec header.
make endianness explicit when writing values.

R=rsc
DELTA=129  (37 added, 7 deleted, 85 changed)
OCL=31826
CL=31854
2009-07-20 10:08:48 -07:00
Rob Pike
94d89ede1c take care of a few more magic numbers
R=rsc
DELTA=51  (41 added, 0 deleted, 10 changed)
OCL=31815
CL=31818
2009-07-17 17:32:34 -07:00
Rob Pike
b63d40a53e count SHdrs and PHdrs and write them out as a unit
R=rsc
DELTA=181  (93 added, 63 deleted, 25 changed)
OCL=31802
CL=31812
2009-07-17 16:34:58 -07:00
Rob Pike
e86dcf1603 more elf64 support: phdrs, constants
R=rsc
DELTA=130  (68 added, 6 deleted, 56 changed)
OCL=31798
CL=31798
2009-07-17 15:09:17 -07:00
Rob Pike
1593b1fc23 First steps towards cleaner support for ELF64 in 6l.
R=rsc
DELTA=337  (165 added, 119 deleted, 53 changed)
OCL=31786
CL=31794
2009-07-17 14:32:37 -07:00
Russ Cox
9e2f2fcd2e compilers were inconsistent about
whether no register argument was
REGARG == 0 or REGARG < 0.
use REGARG < 0 because arm needs 0 for R0.

R=ken
OCL=31562
CL=31566
2009-07-13 19:20:43 -07:00
Russ Cox
29e93590b0 fix undefined function error.
before:
	mainstart: undefined: main·init in mainstart
	mainstart: branch out of range in mainstart
	(95)    CALL    ,0(PC) [main·init]
	mainstart: undefined: main·main in mainstart
	mainstart: branch out of range in mainstart
	(97)    CALL    ,0(PC) [main·main]
	mainstart: doasm: notfound from=6f to=6f (95)    CALL    ,
	mainstart: doasm: notfound from=6f to=6f (97)    CALL    ,
	mainstart: doasm: notfound from=6f to=6f (95)    CALL    ,
	mainstart: doasm: notfound from=6f to=6f (97)    CALL    ,
	mainstart: doasm: notfound from=6f to=6f (95)    CALL    ,
	mainstart: doasm: notfound from=6f to=6f (97)    CALL    ,

after:
	mainstart: undefined: main·init in mainstart
	mainstart: undefined: main·main in mainstart

R=r
DELTA=7  (1 added, 0 deleted, 6 changed)
OCL=31555
CL=31555
2009-07-13 16:48:09 -07:00
Russ Cox
7c534e1bd2 the ld-supplied typestrings are now obsolete
R=r
DELTA=167  (0 added, 167 deleted, 0 changed)
OCL=31304
CL=31316
2009-07-07 17:35:45 -07:00
Russ Cox
b7f0580274 move src/runtime -> src/lib/runtime;
hand-edited files.

R=r
DELTA=125  (77 added, 16 deleted, 32 changed)
OCL=30001
CL=30008
2009-06-06 22:04:50 -07:00