Commit Graph

6 Commits

Author SHA1 Message Date
Ian Lepore
b1526b43e8 Set the malloc alignment to 64 bytes on platforms that use the U-Boot API
device drivers.  Recent versions of u-boot run with the MMU enabled, and
require DMA-based I/O to be aligned to cache line boundaries.

These changes are based on a patch originally submitted by Juergen Weiss,
but I reworked them and thus any problems are purely my fault.

Submitted by:	"Juergen Weiss" <weiss@uni-mainz.de>
Reviewed by:	imp, nwhitehorn, jhb
2014-02-05 22:53:58 +00:00
Stefan Farfeleder
5a9e72a72b Don't add integers to void pointers. 2004-10-03 15:58:20 +00:00
Matthew Dillon
e74b6a84ce Add __FBSDID()s to libstand 2001-09-30 22:28:01 +00:00
Peter Wemm
c536ef83f0 Fix the real problem that broke the Alpha loader this last week. It
was not the fault of the module code, nor FICL.  The malloc code requires
sbrk() to return addresses that were at least 16 byte aligned.  If the
Alpha loader happened to be 8 byte but not 16 byte aligned in length, then
you would get a zfree() panic at startup.

Incidently, this affected the i386 loader as well, and explains why
the static heap changed things and why jlemon had trouble when the bss
was not ending at a multiple of 8 bytes.

My fix is to 16 byte align it on all arches, even though the x86 version
only required 8 byte alignment (struct MemNode is smaller there).  We could
page align it if we wanted to be paranoid, but it isn't presently necessary.
2000-05-12 22:43:20 +00:00
Peter Wemm
7f3dea244c $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
Mike Smith
95b50c2be3 Replace the old and extremely icky Mach/NetBSD allocator with a similarly
compact and much better one donated by Matt Dillon.  Implement a simple
sbrk() which uses the existing setheap() api.

Remove the custom allocator from the UFS code.  It wasn't working quite
right, and it shouldn't be needed with the new allocator.

Fix a serious problem with changing the value of already-existent
environment variables.  Don't attempt to modify the supposedly-const
argument to putenv()

Fix an off-by-one sizing error in the zipfs code detected by the new
allocator.

Submitted by:	zmalloc from Matt Dillon <dillon@backplane.com>
1998-09-26 01:42:40 +00:00