diff options
Diffstat (limited to 'config/kernel-fpu.m4')
| -rw-r--r-- | config/kernel-fpu.m4 | 34 |
1 files changed, 29 insertions, 5 deletions
diff --git a/config/kernel-fpu.m4 b/config/kernel-fpu.m4 index 671fe7ea5..5fff79a74 100644 --- a/config/kernel-fpu.m4 +++ b/config/kernel-fpu.m4 @@ -12,25 +12,49 @@ dnl # Pre-4.2: Use kernel_fpu_{begin,end}() dnl # HAVE_KERNEL_FPU & KERNEL_EXPORTS_X86_FPU dnl # AC_DEFUN([ZFS_AC_KERNEL_FPU], [ - AC_MSG_CHECKING([which kernel_fpu function to use]) + AC_MSG_CHECKING([which kernel_fpu header to use]) ZFS_LINUX_TRY_COMPILE([ + #include <linux/module.h> + #include <asm/fpu/api.h> + ],[ + ],[ + AC_DEFINE(HAVE_KERNEL_FPU_API_HEADER, 1, [kernel has asm/fpu/api.h]) + AC_MSG_RESULT(asm/fpu/api.h) + ],[ + AC_MSG_RESULT(i387.h & xcr.h) + ]) + + AC_MSG_CHECKING([which kernel_fpu function to use]) + ZFS_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/module.h> + #ifdef HAVE_KERNEL_FPU_API_HEADER + #include <asm/fpu/api.h> + #else #include <asm/i387.h> #include <asm/xcr.h> + #endif + MODULE_LICENSE("$ZFS_META_LICENSE"); ],[ kernel_fpu_begin(); kernel_fpu_end(); - ],[ + ], [kernel_fpu_begin], [arch/x86/kernel/fpu/core.c], [ AC_MSG_RESULT(kernel_fpu_*) AC_DEFINE(HAVE_KERNEL_FPU, 1, [kernel has kernel_fpu_* functions]) AC_DEFINE(KERNEL_EXPORTS_X86_FPU, 1, [kernel exports FPU functions]) ],[ - ZFS_LINUX_TRY_COMPILE([ - #include <linux/kernel.h> + ZFS_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/module.h> + #ifdef HAVE_KERNEL_FPU_API_HEADER #include <asm/fpu/api.h> + #else + #include <asm/i387.h> + #include <asm/xcr.h> + #endif + MODULE_LICENSE("$ZFS_META_LICENSE"); ],[ __kernel_fpu_begin(); __kernel_fpu_end(); - ],[ + ], [__kernel_fpu_begin], [arch/x86/kernel/fpu/core.c arch/x86/kernel/i387.c], [ AC_MSG_RESULT(__kernel_fpu_*) AC_DEFINE(HAVE_UNDERSCORE_KERNEL_FPU, 1, [kernel has __kernel_fpu_* functions]) AC_DEFINE(KERNEL_EXPORTS_X86_FPU, 1, [kernel exports FPU functions]) |