freebsd-dev/sys/amd64
Konstantin Belousov d24031dd0c Fix the ABI change of the signal delivered on the access to the page
with insufficient protection mode.

For the i386 and amd64, create the tunable, machdep.prot_fault_translation,
with the following behaviour:
	0 = autodetect the signal to be delivered on KERN_PROTECTION_FAILURE
	    from vm_fault based on the ELF OSABI note:
		no note or __FreeBSD_version < 700004 - SIGBUS/BUS_PAGE_FAULT
		note, and __FreeBSD_version >= 700004 - SIGSEGV/SEGV_ACCERR
	1 = always SIGBUS/BUS_PAGE_FAULT
	2 = always SIGSEGV/SEGV_ACCERR

This would do mostly automatic correction of ABI breakage, with the exception
of the untaged binaries for 7-CURRENT/RELENG_7 before the note is fixed. For
them, sysctl would allow to run the binary with manual settings.

Discussed with:	portmgr (kris)
PR:		kern/118304
MFC after:	3 days
2007-12-04 12:33:03 +00:00
..
acpica Handle CPUs with APIC IDs higher than 32 (at least one IBM server uses 2007-05-08 22:01:04 +00:00
amd64 Fix the ABI change of the signal delivered on the access to the page 2007-12-04 12:33:03 +00:00
compile Make space for compilations. 2002-07-06 02:49:07 +00:00
conf Break out stack(9) from ddb(4): 2007-12-02 20:40:35 +00:00
ia32 Optimize vmmeter locking. 2007-06-10 21:59:14 +00:00
include Break out stack(9) from ddb(4): 2007-12-02 20:40:35 +00:00
isa Split /dev/nvram driver out of isa/clock.c for i386 and amd64. I have not 2007-10-26 03:23:54 +00:00
linux32 Fill in cr2 in the signal context from ksi->ksi_addr. 2007-09-20 13:46:26 +00:00
pci Adjust the code to probe for the PCI config mechanism to use. 2007-11-28 22:20:08 +00:00
Makefile