mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2024-11-18 18:31:00 +03:00
c347fac586
Update the ZFS_LINUX_TEST_PROGRAM macro to always set the module license. As of the 5.11 kernel not setting a license has been converted from a warning to an error. Reviewed-by: Rafael Kitover <rkitover@gmail.com> Reviewed-by: Coleman Kane <ckane@colemankane.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #11387 Closes #11390
132 lines
3.3 KiB
Plaintext
132 lines
3.3 KiB
Plaintext
dnl #
|
|
dnl # Handle differences in kernel FPU code.
|
|
dnl #
|
|
dnl # Kernel
|
|
dnl # 5.0: Wrappers have been introduced to save/restore the FPU state.
|
|
dnl # This change was made to the 4.19.38 and 4.14.120 LTS kernels.
|
|
dnl # HAVE_KERNEL_FPU_INTERNAL
|
|
dnl #
|
|
dnl # 4.2: Use __kernel_fpu_{begin,end}()
|
|
dnl # HAVE_UNDERSCORE_KERNEL_FPU & KERNEL_EXPORTS_X86_FPU
|
|
dnl #
|
|
dnl # Pre-4.2: Use kernel_fpu_{begin,end}()
|
|
dnl # HAVE_KERNEL_FPU & KERNEL_EXPORTS_X86_FPU
|
|
dnl #
|
|
dnl # N.B. The header check is performed before all other checks since it
|
|
dnl # depends on HAVE_KERNEL_FPU_API_HEADER being set in confdefs.h.
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_FPU_HEADER], [
|
|
AC_MSG_CHECKING([whether fpu headers are available])
|
|
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_DEFUN([ZFS_AC_KERNEL_SRC_FPU], [
|
|
ZFS_LINUX_TEST_SRC([kernel_fpu], [
|
|
#include <linux/types.h>
|
|
#ifdef HAVE_KERNEL_FPU_API_HEADER
|
|
#include <asm/fpu/api.h>
|
|
#else
|
|
#include <asm/i387.h>
|
|
#include <asm/xcr.h>
|
|
#endif
|
|
], [
|
|
kernel_fpu_begin();
|
|
kernel_fpu_end();
|
|
], [], [ZFS_META_LICENSE])
|
|
|
|
ZFS_LINUX_TEST_SRC([__kernel_fpu], [
|
|
#include <linux/types.h>
|
|
#ifdef HAVE_KERNEL_FPU_API_HEADER
|
|
#include <asm/fpu/api.h>
|
|
#else
|
|
#include <asm/i387.h>
|
|
#include <asm/xcr.h>
|
|
#endif
|
|
], [
|
|
__kernel_fpu_begin();
|
|
__kernel_fpu_end();
|
|
], [], [ZFS_META_LICENSE])
|
|
|
|
ZFS_LINUX_TEST_SRC([fpu_internal], [
|
|
#if defined(__x86_64) || defined(__x86_64__) || \
|
|
defined(__i386) || defined(__i386__)
|
|
#if !defined(__x86)
|
|
#define __x86
|
|
#endif
|
|
#endif
|
|
|
|
#if !defined(__x86)
|
|
#error Unsupported architecture
|
|
#endif
|
|
|
|
#include <linux/types.h>
|
|
#ifdef HAVE_KERNEL_FPU_API_HEADER
|
|
#include <asm/fpu/api.h>
|
|
#include <asm/fpu/internal.h>
|
|
#else
|
|
#include <asm/i387.h>
|
|
#include <asm/xcr.h>
|
|
#endif
|
|
|
|
#if !defined(XSTATE_XSAVE)
|
|
#error XSTATE_XSAVE not defined
|
|
#endif
|
|
|
|
#if !defined(XSTATE_XRESTORE)
|
|
#error XSTATE_XRESTORE not defined
|
|
#endif
|
|
],[
|
|
struct fpu *fpu = ¤t->thread.fpu;
|
|
union fpregs_state *st = &fpu->state;
|
|
struct fregs_state *fr __attribute__ ((unused)) = &st->fsave;
|
|
struct fxregs_state *fxr __attribute__ ((unused)) = &st->fxsave;
|
|
struct xregs_state *xr __attribute__ ((unused)) = &st->xsave;
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_FPU], [
|
|
dnl #
|
|
dnl # Legacy kernel
|
|
dnl #
|
|
AC_MSG_CHECKING([whether kernel fpu is available])
|
|
ZFS_LINUX_TEST_RESULT_SYMBOL([kernel_fpu_license],
|
|
[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])
|
|
],[
|
|
dnl #
|
|
dnl # Linux 4.2 kernel
|
|
dnl #
|
|
ZFS_LINUX_TEST_RESULT_SYMBOL([__kernel_fpu_license],
|
|
[__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])
|
|
],[
|
|
ZFS_LINUX_TEST_RESULT([fpu_internal], [
|
|
AC_MSG_RESULT(internal)
|
|
AC_DEFINE(HAVE_KERNEL_FPU_INTERNAL, 1,
|
|
[kernel fpu internal])
|
|
],[
|
|
AC_MSG_RESULT(unavailable)
|
|
])
|
|
])
|
|
])
|
|
])
|