pass the block number of the boot partition to the kernel. The kernel
will use the block number to determine which disk device the kernel was
booted from and set the boot device based on that instead of the old
"generic" method.
- move the helper programs txlt and aout2bb to the topmost directory
- build the few files from libsa in the topmost directory
* while doing this, hunted down mysterious code expansion: It seems
that ld aligns code segments differently when linking .o's directly
than when using an archive consisting of the same files. Abuse this
effect to make the bootblock even smaller. The floppy boot block
"fdboot" is now small enough to build; add it back to the Makefile.
* while being here, remove a file which was committed by mistake.
Eliminate obsolete global kernel variable "struct timezone tz"
Add RTC_OFFSET option
Add global kernel variable rtc_offset, which is initialized by
RTC_OFFSET at kernel compile time.
on i386, x68k, mac68k, pc532 and arm32, RTC_OFFSET indicates how many
minutes west (east) of GMT the hardware RTC runs. Defaults to 0.
Places where tz variable was used to indicate this in the past have
been replaced with rtc_offset.
Add sysctl interface to rtc_offset.
Kill obsolete DST_* macros in sys/time.h
gettimeofday now always returns zeroed timezone if zone is requested.
settimeofday now ignores and logs attempts to set non-existant kernel
timezone.
For some reason it wouldn't get positioned right when mapped in through the
blitter memory mapped location, so switched to the register mapping, which
works.
XXX colormap handling for the cursor is still broken.
configuration. This way, the delay loop is calibrated before graphics and
serial hardware is touched.
This change should smooth pr 2890 by Thorsten Frueauf (also privately
reported by Laurent Badoukh). While the real problem with those is the
paranoically high delay() calls in the grf_cl initialization, it was made
even more visible by the miscalibrated (to the save side) new style delay
loop.
even if you "really didn't change anything dangerous" :-)
- While we're here, save a few bytes and clock cycles during kernel startup:
cinva ic clears the branch cache on the 68060, no need to do it explicitly.
for branch prediction errors (could be used to detect strange binaries),
integer instruction, FP instruction, FP data type and FP effective address
emulations. The latter can be used to diagnose binaries which should be
recompiled with -m68060.
XXX Maybe these diagnostics should be switchable by sysctl or
XXX options DIAGNOSTIC.
fvdl