freebsd-dev/sys/i386
Konstantin Belousov 22eca0bf45 Since version 4.3, gcc changed its behaviour concerning the i386/amd64
ABI and the direction flag, that is it now assumes that the direction
flag is cleared at the entry of a function and it doesn't clear once
more if needed. This new behaviour conforms to the i386/amd64 ABI.

Modify the signal handler frame setup code to clear the DF {e,r}flags
bit on the amd64/i386 for the signal handlers.

jhb@ noted that it might break old apps if they assumed DF == 1 would be
preserved in the signal handlers, but that such apps should be rare and
that older versions of gcc would not generate such apps.

Submitted by:	Aurelien Jarno <aurelien aurel32 net>
PR:	121422
Reviewed by:	jhb
MFC after:	2 weeks
2008-03-13 10:54:38 +00:00
..
acpica For no good reason I had assumed that ACPI table headers would be page 2008-01-31 16:51:43 +00:00
bios Hold Giant over the entire execution of the suspend path instead of 2007-12-06 01:39:23 +00:00
compile
conf Remove kernel support for M:N threading. 2008-03-12 10:12:01 +00:00
cpufreq - Don't execute cpuid to fetch the features. We already have the features 2008-03-10 22:00:35 +00:00
i386 Since version 4.3, gcc changed its behaviour concerning the i386/amd64 2008-03-13 10:54:38 +00:00
ibcs2 Remove kernel support for M:N threading. 2008-03-12 10:12:01 +00:00
include The variable MTRR registers actually have variable-sized PhysBase and 2008-03-12 22:09:19 +00:00
isa Use cpu_spinwait() (i.e., "pause") when spinning on rdtsc during DELAY(). 2008-01-17 18:59:38 +00:00
linux Since version 4.3, gcc changed its behaviour concerning the i386/amd64 2008-03-13 10:54:38 +00:00
pci More properly handle links who only have 1 valid IRQ in their bitmask. The 2007-12-21 16:53:27 +00:00
svr4 Since version 4.3, gcc changed its behaviour concerning the i386/amd64 2008-03-13 10:54:38 +00:00
xbox Replace explicit calls to video methods with their respective variants 2007-12-29 23:26:59 +00:00
Makefile Update entries for building tags. 2007-05-13 18:21:54 +00:00