Commit Graph

9 Commits

Author SHA1 Message Date
Daniel C. Sobral
08c9325cb2 Fix a number of memory leaks and other memory-related disorders.
Also, unbreak the breakage introduced at the last revision of module.c.
This changes the semantics of mod_searchfile() (and mod_searchmodule())
to make the caller's responsibility freeing the buffer returned. This
is different from other functions in loader's code, and was done as a
fix for kern/9631. If someone wants to revert this to the original
behavior, don't forget to fix kern/9631 in another way.

This should also fix bin/10462, which was introduced as a result of the
first try at kern/9631 (module.c last revision).

PR:		bin/10462
Submitted by:	Takanori Saneto <sanewo@ba2.so-net.ne.jp>
1999-03-08 10:32:39 +00:00
Daniel C. Sobral
85f0ea7590 Fix assorted memory leak/buffer reuse problems.
Not restricted to, but including:

PR:		kern/9631
Submitted by:	Bill Fenner <fenner@parc.xerox.com>
1999-02-22 13:12:37 +00:00
Mike Smith
95d50652d0 No builtin command resets getopt before using it, causing
problems in case a wrong option was given previously, and no option
is given to the next command.

PR:		kern/9371
Submitted by:	"Daniel C. Sobral" <dcs@newsguy.com>
1999-01-11 06:41:32 +00:00
Peter Wemm
c582ad070a Use a consistant module search path (same as kernel will be).
Use new dependency mechanism.
1998-10-09 23:12:34 +00:00
Doug Rabson
e24168e6c3 * Add old UFS compatibility code to alpha/boot1.
* Fix a raft of warnings, printf and otherwise.
* Allocate the correct amount in mod_searchmodule to prevent an overflow.
* Fix the makefiles so they work outside my home directory (oops).
1998-09-26 10:51:38 +00:00
Mike Smith
0d5d0b20dc Resynch with working sources before BTX integration.
- Use format-independant module allocator.
 - Conditionalise ISA PnP support.
 - Simplify PnP enumerator interface.
 - Improve module/object searching.
 - Add missing depend/install targets in BTX makefiles.
 - Pass the kernel environment and module data in extended bootinfo fields.
 - Add a pointer to the end of the kernel + modules in bootinfo.
 - Fix parsing of old-style kernel arguments.
1998-09-14 18:27:06 +00:00
Mike Smith
06b57b0e09 Bootstrap updates.
- Move some startup code from MD to MI sections
 - Add a 'copyout' and some copyout-related functions.  These will be
   obsoleted when BTX is available for the 386 and the kernel load
   area becomes directly addressable.
 - Add the ability load an arbitrary file as a module, associating
   and arbitrary type string with it.  This can be used eg. for loading
   splash-screen images etc.
 - Add KLD module dependancy infrastructure.  We know how to look for
   dependancies inside KLD modules, how to resolve these dependancies
   and what to do if things go wrong.  Only works for a.out at the
   moment, due to lack of an MI ELF loader.  Attach KLD module information
   to loaded modules as metadata, but don't pass it to the kernel (it
   can find it itself).
 - Load a.out KLD modules on a page boundary.  Only pad the a.out BSS
   for the kernel, as it may want to throw symbols away.  (We might want
   to do this for KLD modules too.)
 - Allow commands to be hidden from the '?' display, to avoid cluttering
   it with things like 'echo'.  Add 'echo'.
 - Bring the 'prompt' command into line with the parser syntax.
 - Fix the verbose 'ls'; it was using an uninitialised stack variable.
 - Add a '-v' flag to 'lsmod' to have it display module metadata as well
   (not terribly useful for the average user)
 - Support a 'module searchpath' for required modules.
 - The bootstrap file on i386 is now called 'loader' to permit the
   /boot directory to use that name.
 - Discard the old i386 pread() function, as it's replaced by
   arch_readin()
1998-09-03 02:10:09 +00:00
Mike Smith
c73b70eec4 Bootloader update.
- Implement a new copyin/readin interface for loading modules.
   This allows the module loaders to become MI, reducing code duplication.
 - Simplify the search for an image activator for the loaded kernel.
 - Use the common module management code for all module metadata.
 - Add an 'unload' command that throws everything away.
 - Move the a.out module loader to MI code, add support for a.out
   kld modules.

Submitted by:	Alpha changes fixed by Doug Rabson <dfr@freebsd.org>
1998-08-31 21:10:43 +00:00
Mike Smith
c2f9d95de5 This is the new unified bootstrap, sometimes known previously as the
'three-stage' bootstrap.
There are a number of caveats with the code in its current state:
 - The i386 bootstrap only supports booting from a floppy.
 - The kernel and kld do not yet know how to deal with the extended
   information and module summary passed in.
 - PnP-based autodetection and demand loading of modules is not implemented.
 - i386 ELF kernel loading is not ready yet.
 - The i386 bootstrap is loaded via an ugly blockmap.

On the alpha, both net- and disk-booting (SRM console machines only) is
supported.  No blockmaps are used by this code.

Obtained from:	Parts from the NetBSD/i386 standalone bootstrap.
1998-08-21 03:17:42 +00:00