Merge branch 'x86-syscall-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

* 'x86-syscall-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Move <asm/asm-offsets.h> from trace_syscalls.c to asm/syscall.h
  x86, um: Fix typo in 32-bit system call modifications
  um: Use $(srctree) not $(KBUILD_SRC)
  x86, um: Mark system call tables readonly
  x86, um: Use the same style generated syscall tables as native
  um: Generate headers before generating user-offsets.s
  um: Run host archheaders, allow use of host generated headers
  kbuild, headers.sh: Don't make archheaders explicitly
  x86, syscall: Allow syscall offset to be symbolic
  x86, syscall: Re-fix typo in comment
  x86: Simplify syscallhdr.sh
  x86: Generate system call tables and unistd_*.h from tables
  checksyscalls: Use arch/x86/syscalls/syscall_32.tbl as source
  x86: Machine-readable syscall tables and scripts to process them
  trace: Include <asm/asm-offsets.h> in trace_syscalls.c
  x86-64, ia32: Move compat_ni_syscall into C and its own file
  x86-64, syscall: Adjust comment spacing and remove typo
  kbuild: Add support for an "archheaders" target
  kbuild: Add support for installing generated asm headers

1 files changed, 27 insertions, 0 deletions

diff --git a/arch/x86/syscalls/syscallhdr.sh b/arch/x86/syscalls/syscallhdr.sh
new file mode 100644
index 000000000000..31fd5f1f38f7
--- /dev/null
+++ b/arch/x86/syscalls/syscallhdr.sh
@@ -0,0 +1,27 @@
+#!/bin/sh
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+prefix="$4"
+offset="$5"
+
+fileguard=_ASM_X86_`basename "$out" | sed \
+    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
+    -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+    echo "#ifndef ${fileguard}"
+    echo "#define ${fileguard} 1"
+    echo ""
+
+    while read nr abi name entry ; do
+	if [ -z "$offset" ]; then
+	    echo "#define __NR_${prefix}${name} $nr"
+	else
+	    echo "#define __NR_${prefix}${name} ($offset + $nr)"
+        fi
+    done
+
+    echo ""
+    echo "#endif /* ${fileguard} */"
+) > "$out"