[PATCH 19/30] x32: Generate <asm/unistd_64_x32.h>

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From: "H. Peter Anvin" <hpa@xxxxxxxxx>

Generate macros for the *kernel* code to use to refer to x32 system
calls.  These have an __NR_x32_ prefix and do not include

Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxx>
 arch/x86/include/asm/unistd.h |    1 +
 arch/x86/syscalls/Makefile    |    7 ++++++-
 2 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/arch/x86/include/asm/unistd.h b/arch/x86/include/asm/unistd.h
index dab5349..7a48a55 100644
--- a/arch/x86/include/asm/unistd.h
+++ b/arch/x86/include/asm/unistd.h
@@ -17,6 +17,7 @@
 # else
 #  include <asm/unistd_64.h>
+#  include <asm/unistd_64_x32.h>
 # endif
diff --git a/arch/x86/syscalls/Makefile b/arch/x86/syscalls/Makefile
index 54bdbd7..414d402 100644
--- a/arch/x86/syscalls/Makefile
+++ b/arch/x86/syscalls/Makefile
@@ -34,6 +34,11 @@ syshdr_abi_unistd_64 := common,64
 $(out)/unistd_64.h: $(syscall64) $(syshdr)
 	$(call if_changed,syshdr)
+syshdr_abi_unistd_64_x32 := x32
+syshdr_pfx_unistd_64_x32 := x32_
+$(out)/unistd_64_x32.h: $(syscall64) $(syshdr)
+	$(call if_changed,syshdr)
 $(out)/syscalls_32.h: $(syscall32) $(systbl)
 	$(call if_changed,systbl)
 $(out)/syscalls_64.h: $(syscall64) $(systbl)
@@ -41,7 +46,7 @@ $(out)/syscalls_64.h: $(syscall64) $(systbl)
 syshdr-y			+= unistd_32.h unistd_64.h unistd_x32.h
 syshdr-y			+= syscalls_32.h
-syshdr-$(CONFIG_X86_64)		+= unistd_32_ia32.h
+syshdr-$(CONFIG_X86_64)		+= unistd_32_ia32.h unistd_64_x32.h
 syshdr-$(CONFIG_X86_64)		+= syscalls_64.h
 targets	+= $(syshdr-y)

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