freebsd-dev/sys/i386
Peter Wemm f41325db5f With this commit, I hereby pronounce gensetdefs past its use-by date.
Replace the a.out emulation of 'struct linker_set' with something
a little more flexible.  <sys/linker_set.h> now provides macros for
accessing elements and completely hides the implementation.

The linker_set.h macros have been on the back burner in various
forms since 1998 and has ideas and code from Mike Smith (SET_FOREACH()),
John Polstra (ELF clue) and myself (cleaned up API and the conversion
of the rest of the kernel to use it).

The macros declare a strongly typed set.  They return elements with the
type that you declare the set with, rather than a generic void *.

For ELF, we use the magic ld symbols (__start_<setname> and
__stop_<setname>).  Thanks to Richard Henderson <rth@redhat.com> for the
trick about how to force ld to provide them for kld's.

For a.out, we use the old linker_set struct.

NOTE: the item lists are no longer null terminated.  This is why
the code impact is high in certain areas.

The runtime linker has a new method to find the linker set
boundaries depending on which backend format is in use.

linker sets are still module/kld unfriendly and should never be used
for anything that may be modular one day.

Reviewed by:	eivind
2001-06-13 10:58:39 +00:00
..
acpica FreeBSD-specific OSD (operating system dependant) modules for the Intel 2000-10-28 06:56:15 +00:00
apm Send the remains (such as I have located) of "block major numbers" to 2001-03-26 12:41:29 +00:00
bios Send the remains (such as I have located) of "block major numbers" to 2001-03-26 12:41:29 +00:00
conf Hints overhaul: 2001-06-12 09:40:04 +00:00
i386 Hints overhaul: 2001-06-12 09:40:04 +00:00
ibcs2 Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
include Fix style of defines. 2001-06-09 05:21:17 +00:00
isa Hints overhaul: 2001-06-12 09:40:04 +00:00
linux With this commit, I hereby pronounce gensetdefs past its use-by date. 2001-06-13 10:58:39 +00:00
pci Un-swap irq/link byte values so that printf works. 2001-05-11 04:52:29 +00:00
svr4 Undo part of the tangle of having sys/lock.h and sys/mutex.h included in 2001-05-01 08:13:21 +00:00
Makefile Update tags directive to reflect the new location of soft updates 2000-07-04 00:18:43 +00:00