o5r/plan9port
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

gone

Browse source
This commit is contained in:
rsc 2005-01-18 18:34:46 +00:00
parent e4d62adf03
commit f263eaf302
1 changed files with 0 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

17
PORTING
View file

@ -1,17 +0,0 @@
[Need to write better notes.]
Look for files named *386* or *FreeBSD* and you'll see what
you need to implement for your architecture of choice.
The hardest thing is probably the assembly routines:
src/lib9/tas-$SYSTYPE.s and src/libthread/asm-$SYSTYPE-$OBJTYPE.s.
The former is a test and set used to implement shared-memory
spin locks. The latter is a stripped down setjmp and longjmp
used to implement stack switching in the thread library.
Also, src/libthread/$OBJTYPE.c needs to know how to set up a stack
frame for the given object type.
If you're only interested in mk and sam, you don't need to
write any assembly to do a port. Acme and samterm require everything
though, since it uses libthread.