Commit Graph

6 Commits

Author SHA1 Message Date
Bruce Evans
b5d89ca8ad Load the kernel symbol table in the boot loader and not at compile time.
(Boot with the -D flag if you want symbols.)

Make it easier to extend `struct bootinfo' without losing either forwards
or backwards compatibility.

ddb_aout.c:
Get the symbol table from wherever the loader put it.
Nuke db_symtab[SYMTAB_SPACE].

boot.c:
Enable loading of symbols.  Align them on a page boundary.  Add printfs
about the symbol table sizes.
Pass the memory sizes to the kernel.
Fix initialization of `unit' (it got moved out of the loop).
Fix adding the bss size (it got moved inside an ifdef).
Initialize serial port when RB_SERIAL is toggled on.
Fix comments.
Clean up formatting of recently added code.

io.c:
Clean up formatting of recently added code.

netboot/main.c, machdep.c, wd.c:
Change names of bootinfo fields.

LINT:
Nuke SYMTAB_SPACE.
Fix comment about DODUMP.

Makefile.i386:
Nuke use of dbsym.
Exclude gcc symbols from kernel unless compiling with -g.
Remove unused macro.
Fix comments and formatting.

genassym.c:
Generate defines for some new bootinfo fields.  Change names of old ones.

locore.s:
Copy only the valid part of the `struct bootinfo' passed by the loader.
Reserve space for symbol table, if any.

machdep.c:
Check the memory sizes passed by the loader, if any.  Don't use them yet.

bootinfo.h:
Add a size field so that we can resolve some mismatches between the loader
bootinfo and the kernel boot info.  The version number is not so good for
this because of historical botches and because it's harder to maintain.
Add memory size and symbol table fields.  Change the names of everything.

Hacks to save a few bytes:

asm.S, boot.c, boot2.S:
Replace `ouraddr' by `(BOOTSEG << 4)'.

boot.c:
Don't statically initialize `loadflags' to 0.  Disable the "REDUNDANT"
code that skips the BIOS variables.  Eliminate `total'.  Combine some
more printfs.

boot.h, disk.c, io.c, table.c:
Move all statically initialzed data to table.c.

io.c:
Don't put the A20 gate bits in a variable.
1995-01-25 21:40:47 +00:00
Rodney W. Grimes
9949ebf656 1. BOOTSEG and BOOTSTACK are now set from the Makefile, the boot code has
been relocated to run in the 64k segment at 0x10000 with the stack at
    the top of this segment.  This corrects the problems machines with 512K
    base memory had booting.

2.  startprog routing rewritten to convert the BOOTSEG ss to a KERNELSEG
    ss, this eliminated the last of the >512K memory references.  Additional
    cleanup in here included a better way to copy the arguments to the
    kernel stack.

3.  Elimination of argv and esym cruft saved a few bytes.

4.  Only need to truncate the head.a_entry to a meg boundary once intead
    of every time we used it!  [Saving more bytes].

5.  Addition of version 1 bootinfo structure support.  These boot blocks
    pass the kernel name in to the kernel now.

6.  Removed historical comments about MACH argv stuff, as it is useless now.
1994-10-06 09:41:05 +00:00
Rodney W. Grimes
12fafb2d5a 1. Completely rewritten Makefile that uses bsd.prog.mk more effectively.
2.  Clean up the .S files to use /* */ style comments.

This is a totally cosmetic change, not one byte of the resulting boot
code changes.  But at least it is installed with correct owners and in
the right places, and gets recompiled correctly when things change!
1994-10-02 05:18:26 +00:00
Bruce Evans
2c22dd40a2 Conditionalize support for my debugger. This normally saves 304 bytes. 1994-08-30 01:38:04 +00:00
Rodney W. Grimes
dd05fde699 Removed all patch kit headers, sccsid and rcsid strings, put $Id$ in, some
minor cleanup.  Added $Id$ to files that did not have any version info, etc
1993-10-16 19:17:18 +00:00
Charlie Root
f7710986e2 New boot blocks, from Bruce Evans, and NetBSD fixes. Allows kernel to
be loaded above 1MB.  Same boot code for floppies now.  Speed improvements.
etc etc etc. (I don't have much history on this, but then have been tested)
1993-07-13 18:15:32 +00:00