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path: root/src/cmd/6l/span.c
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2011-01-17Imported Upstream version 2011.01.12upstream/2011.01.12Ondřej Surý1-726/+556
2010-04-275l, 6l, 8l, runtime: make -s binaries workRuss Cox1-0/+8
5l, 6l, 8l: change ELF header so that strip doesn't destroy binary Fixes issue 261. R=iant, r CC=golang-dev http://codereview.appspot.com/994044
2009-11-04speed up 6lKen Thompson1-7/+16
hopefully no change R=rsc http://go/go-review/1017035
2009-11-036l -e: emit external ELF symbol table.Russ Cox1-14/+84
enough to make nm and oprofile work. R=r http://go/go-review/1017016
2009-10-07factor portable object+library bits out of 5l/6l/8l into ldRuss Cox1-0/+1
R=r DELTA=3214 (904 added, 2260 deleted, 50 changed) OCL=35425 CL=35427
2009-10-038c, 8l dynamic loading support.Russ Cox1-0/+11
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
2009-08-30fix line numbers, again.Russ Cox1-1/+3
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
2009-08-21linker workRuss Cox1-4/+15
* 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
2009-08-20symbol bugs.Russ Cox1-5/+20
do not emit unreachable data symbols. R=austin DELTA=103 (71 added, 4 deleted, 28 changed) OCL=33325 CL=33622
2009-08-136g/6l: add go type information to symbol table.Russ Cox1-12/+16
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
2009-08-12mechanism for putting go types into 6.out symbol table.Russ Cox1-7/+7
no types yet. R=ken OCL=33142 CL=33146
2009-08-12change gotype in symbol table fromRuss Cox1-9/+6
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
2009-07-20clean up generation of exec header.Rob Pike1-9/+9
make endianness explicit when writing values. R=rsc DELTA=129 (37 added, 7 deleted, 85 changed) OCL=31826 CL=31854
2009-05-056l: eliminate dead code, not just the symbolsRuss Cox1-1/+1
editing the firstp list was ineffective, because follow rebuilds it from the textp list. the symbols for dead code were being dropped from the binary but the code was all still there. text for fmt.Printf("hello, world\n") drops from 143945 to 128650. R=r,ken DELTA=22 (20 added, 0 deleted, 2 changed) OCL=28255 CL=28290
2009-04-30change 6l library directory flag to -L,Russ Cox1-7/+7
to match traditional c linkers. R=r DELTA=42 (8 added, 12 deleted, 22 changed) OCL=28101 CL=28115
2009-01-30keep line number history even whenRuss Cox1-2/+2
throwing away dead code at end of file. also fix an uninitialized memory error found by valgrind. R=r DELTA=7 (5 added, 2 deleted, 0 changed) OCL=23991 CL=23994
2008-11-20symbol table changesRuss Cox1-16/+23
* 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
2008-08-03make 6a, 6c, 6g, 6l, libmach_amd64 build on 64-bit gcc.Russ Cox1-12/+12
these guys really really want long to be 32-bits, so ,s/long/int32/ (and then manual fixup). still passes all tests. (i started out looking for just those longs that needed to be int32 instead, and it was just too hard to track them down one by one.) the longs were rare enough that i don't think it will cause integration problems. R=ken OCL=13787 CL=13789
2008-06-18stack offsetKen Thompson1-18/+1
SVN=123521
2008-06-18stack offseet table markerKen Thompson1-1/+18
tacked above each TEXT entry SVN=123496
2008-06-04Add compiler source to new directory structureRob Pike1-0/+1776
SVN=121164
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