On Tue, 24 May 2011 00:22:49 +0200 Wolfgang Denk wd@denx.de wrote:
Dear Alexander Holler,
In message 4DDADBB6.30607@ahsoftware.de you wrote:
So you I will look forward to checks for NULL pointers and similiar in all C standard functions implemented in u-boot to circumvent tons of possible real world bugs in all callers of strcpy, strlen, mem* and whatever.
If you think a bit about this, you may find it more difficult than you expect. Keep in mind that on most systems supported by U-Boot code like
int *p = (int *)0;
print("*p = %d\n", *p);
is perfectly legal and supposed to work without any problems -
Might want to pass -fno-delete-null-pointer-checks...
As for memcpy/memmove, if in U-Boot it's to be legal to pass overlapping regions to memcpy(), why have separate implementations (not to mention bcopy...)?
-Scott