d3eb09f083
- fix ndis_time() so that it returns a time based on the proper
epoch (wacky though it may be)
- implement NdisInitializeString() and NdisFreeString(), and add
stub for NdisMRemoveMiniport()
ntoskrnl_var.h:
- add missing member to the general_lookaside struct (gl_listentry)
subr_ntoskrnl.c:
- Fix arguments to the interlocked push/pop routines: 'head' is an
slist_header *, not an slist_entry *
- Kludge up _fastcall support for the push/pop routines. The _fastcall
convention is similar to _stdcall, except the first two available
DWORD-sized arguments are passed in %ecx and %edx, respectively.
One kludge for this __attribute__ ((regparm(3))), however this
isn't entirely right, as it assumes %eax, %ecx and %edx will be
used (regparm(2) assumes %eax and %edx). Another kludge is to
declare the two fastcall-ed args as local register variables and
explicitly assign them to %ecx and %edx, but experimentation showed
that gcc would not guard %ecx and %edx against being clobbered.
Thus, I came up with a 3rd kludge, which is to use some inline
assembly of the form:
void *arg1;
void *arg2;
__asm__("movl %%ecx, %%ecx" : "=c" (arg1));
__asm__("movl %%edx, %%edx" : "=d" (arg2));
This lets gcc know that we're going to reference %ecx and %edx and
that it should make an effort not to let it get trampled. This wastes
an instruction (movl %reg, %reg is a no-op) but insures proper
behavior. It's possible there's a better way to do this though:
this is the first time I've used inline assembler in this fashion.
The above fixes to ntoskrnl_var.h an subr_ntoskrnl.c make lookaside
lists work for the two drivers I have that use them, one of which
is an NDIS 5.0 miniport and another which is 5.1.
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