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    Subject[PATCH 19/30] x32: Generate <asm/unistd_64_x32.h>
    Date
    From: "H. Peter Anvin" <hpa@zytor.com>

    Generate macros for the *kernel* code to use to refer to x32 system
    calls. These have an __NR_x32_ prefix and do not include
    __X32_SYSCALL_BIT.

    Signed-off-by: H. Peter Anvin <hpa@zytor.com>
    ---
    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>
    # define __ARCH_WANT_COMPAT_SYS_TIME

    # 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)
    --
    1.7.6.5


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