src/cf/linux-checks.m4

   1
   2 AC_DEFUN([_OPENAFS_LINUX_CONFTEST_SETUP],[
   3 # Add (sub-) architecture-specific paths needed by conftests
   4 case $AFS_SYSNAME  in
   5     *_umlinux26)
   6         UMLINUX26_FLAGS="-I$LINUX_KERNEL_PATH/arch/um/include"
   7         UMLINUX26_FLAGS="$UMLINUX26_FLAGS -I$LINUX_KERNEL_PATH/arch/um/kernel/tt/include"
   8         UMLINUX26_FLAGS="$UMLINUX26_FLAGS -I$LINUX_KERNEL_PATH/arch/um/kernel/skas/include"
   9         CPPFLAGS="$CPPFLAGS $UMLINUX26_FLAGS"
  10 esac
  11 ])
  12
  13 AC_DEFUN([_OPENAFS_LINUX_KBUILD_SETUP],[
  14 if test "x$enable_debug_kernel" = "xno"; then
  15     LINUX_GCC_KOPTS="$LINUX_GCC_KOPTS -fomit-frame-pointer"
  16 fi
  17 OPENAFS_GCC_SUPPORTS_MARCH
  18 AC_SUBST(P5PLUS_KOPTS)
  19 OPENAFS_GCC_NEEDS_NO_STRENGTH_REDUCE
  20 OPENAFS_GCC_NEEDS_NO_STRICT_ALIASING
  21 OPENAFS_GCC_SUPPORTS_NO_COMMON
  22 OPENAFS_GCC_SUPPORTS_PIPE
  23 AC_SUBST(LINUX_GCC_KOPTS)
  24
  25 dnl Setup the kernel build environment
  26 LINUX_KBUILD_USES_EXTRA_CFLAGS
  27 LINUX_KBUILD_SPARSE_CHECKS
  28 LINUX_KERNEL_COMPILE_WORKS
  29 ])
  30
  31 AC_DEFUN([OPENAFS_LINUX_MISC_DEFINES],[
  32     if test "x$enable_linux_d_splice_alias_extra_iput" = xyes; then
  33         AC_DEFINE(D_SPLICE_ALIAS_LEAK_ON_ERROR, 1, [for internal use])
  34     fi
  35     dnl Linux-only, but just enable always.
  36     AC_DEFINE(AFS_CACHE_BYPASS, 1, [define to activate cache bypassing Unix client])
  37 ])
  38
  39 AC_DEFUN([OPENAFS_LINUX_CHECKS],[
  40 case $AFS_SYSNAME in *_linux* | *_umlinux*)
  41     _OPENAFS_LINUX_CONFTEST_SETUP
  42     if test "x$enable_kernel_module" = "xyes"; then
  43         _OPENAFS_LINUX_KBUILD_SETUP
  44         OPENAFS_LINUX_KERNEL_SIG_CHECKS
  45         OPENAFS_LINUX_KERNEL_HEADER_CHECKS
  46         OPENAFS_LINUX_KERNEL_TYPE_CHECKS
  47         OPENAFS_LINUX_KERNEL_STRUCT_CHECKS
  48         OPENAFS_LINUX_KERNEL_FUNC_CHECKS
  49         OPENAFS_LINUX_KERNEL_ASSORTED_CHECKS
  50         OPENAFS_LINUX_KERNEL_SYSCALL_PROBE_SETUP
  51         OPENAFS_LINUX_KERNEL_PACKAGING_CHECKS
  52         OPENAFS_LINUX_KERNEL_SYSCALL_PROBE_CHECKS
  53         OPENAFS_LINUX_KERNEL_MORE_ASSORTED_CHECKS
  54
  55         OPENAFS_GCC_SUPPORTS_WNO_ERROR_FRAME_LARGER_THAN
  56     fi
  57     OPENAFS_LINUX_MISC_DEFINES
  58 esac
  59 ])