switch compat readv/writev variants to COMPAT_SYSCALL_DEFINE

[firefly-linux-kernel-4.4.55.git] / arch / Kconfig

diff --git a/arch/Kconfig b/arch/Kconfig
index 97fb7d0365d15505d500a126588f889a7647fcd8..1455579791ec02514a5d616a4b6749cbec3185b0 100644 (file)
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -103,6 +103,22 @@ config UPROBES
 
          If in doubt, say "N".
 
+config HAVE_64BIT_ALIGNED_ACCESS
+       def_bool 64BIT && !HAVE_EFFICIENT_UNALIGNED_ACCESS
+       help
+         Some architectures require 64 bit accesses to be 64 bit
+         aligned, which also requires structs containing 64 bit values
+         to be 64 bit aligned too. This includes some 32 bit
+         architectures which can do 64 bit accesses, as well as 64 bit
+         architectures without unaligned access.
+
+         This symbol should be selected by an architecture if 64 bit
+         accesses are required to be 64 bit aligned in this way even
+         though it is not a 64 bit architecture.
+
+         See Documentation/unaligned-memory-access.txt for more
+         information on the topic of unaligned memory accesses.
+
 config HAVE_EFFICIENT_UNALIGNED_ACCESS
        bool
        help
@@ -368,9 +384,6 @@ config MODULES_USE_ELF_REL
          Modules only use ELF REL relocations.  Modules with ELF RELA
          relocations will give an error.
 
-config GENERIC_SIGALTSTACK
-       bool
-
 #
 # ABI hall of shame
 #
@@ -385,4 +398,30 @@ config CLONE_BACKWARDS2
        help
          Architecture has the first two arguments of clone(2) swapped.
 
+config ODD_RT_SIGACTION
+       bool
+       help
+         Architecture has unusual rt_sigaction(2) arguments
+
+config OLD_SIGSUSPEND
+       bool
+       help
+         Architecture has old sigsuspend(2) syscall, of one-argument variety
+
+config OLD_SIGSUSPEND3
+       bool
+       help
+         Even weirder antique ABI - three-argument sigsuspend(2)
+
+config OLD_SIGACTION
+       bool
+       help
+         Architecture has old sigaction(2) syscall.  Nope, not the same
+         as OLD_SIGSUSPEND | OLD_SIGSUSPEND3 - alpha has sigsuspend(2),
+         but fairly different variant of sigaction(2), thanks to OSF/1
+         compatibility...
+
+config COMPAT_OLD_SIGACTION
+       bool
+
 source "kernel/gcov/Kconfig"