CVS log for src/sys/arch/aarch64/include/signal.h

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Keyword substitution: kv
Default branch: MAIN

Normally, to support COMPAT_NETBSD32 we need to define
__HAVE_STRUCT_SIGCONTEXT in order to support the old
"sigcontext" style of handlers for 32-bit binaries.
However, we only support 32-bit EABI binaries on AArch64,
and by happy accident (due to a libc bug introduced in
2006), 32-bit NetBSD EABI binaries never used "sigcontext"
style handlers.  So, we don't need to carry any of this
baggage forward.

This addresses the AArch64 case of PR kern/56487.

- In sendsig() and sigaction1(), don't hard-code signal trampoline
  versions.  Instead, use the version constants from <sys/signal.h>
  and automatically (and correctly) handle cases where multiple versions
  of a particular trampoline flavor exist.  Conditionalize support
  for sigcontext trampolines on __HAVE_STRUCT_SIGCONTEXT.
- aarch64 and amd64 don't use sigcontext natively, but do need to
  support it for 32-bit compatibility; define __HAVE_STRUCT_SIGCONTEXT
  conditionally on _KERNEL.

Sync with HEAD.  77 conflicts resolved - all of them $NetBSD$

Add initial support for ARMv8 (AARCH64) (by nisimura@ and ryo@)

- sys/arch/evbarm64 is gone and integrated into sys/arch/evbarm. (by skrll@)
- add support fdt. evbarm/conf/GENERIC64 fdt (bcm2837,sunxi,tegra) based generic 64bit kernel config. (by skrll@, jmcneill@)

Rebase to HEAD as of a few days ago.

file signal.h was added on branch tls-maxphys on 2014-08-20 00:02:39 +0000

Preliminary files for AARCH64 (64-bit ARM) support.
Enough for a distribution build.