diff options
Diffstat (limited to 'config')
-rw-r--r-- | config/kernel-stdarg.m4 | 32 | ||||
-rw-r--r-- | config/kernel.m4 | 2 |
2 files changed, 34 insertions, 0 deletions
diff --git a/config/kernel-stdarg.m4 b/config/kernel-stdarg.m4 new file mode 100644 index 000000000..5bc8dd859 --- /dev/null +++ b/config/kernel-stdarg.m4 @@ -0,0 +1,32 @@ +dnl # +dnl # Linux 5.15 gets rid of -isystem and external <stdarg.h> inclusion +dnl # and ships its own <linux/stdarg.h>. Check if this header file does +dnl # exist and provide all necessary definitions for variable argument +dnl # functions. Adjust the inclusion of <stdarg.h> according to the +dnl # results. +dnl # +AC_DEFUN([ZFS_AC_KERNEL_SRC_STANDALONE_LINUX_STDARG], [ + ZFS_LINUX_TEST_SRC([has_standalone_linux_stdarg], [ + #include <linux/stdarg.h> + + #if !defined(va_start) || !defined(va_end) || \ + !defined(va_arg) || !defined(va_copy) + #error "<linux/stdarg.h> is invalid" + #endif + ],[]) +]) + +AC_DEFUN([ZFS_AC_KERNEL_STANDALONE_LINUX_STDARG], [ + dnl # + dnl # Linux 5.15 ships its own stdarg.h and doesn't allow to + dnl # include compiler headers. + dnl # + AC_MSG_CHECKING([whether standalone <linux/stdarg.h> exists]) + ZFS_LINUX_TEST_RESULT([has_standalone_linux_stdarg], [ + AC_MSG_RESULT([yes]) + AC_DEFINE(HAVE_STANDALONE_LINUX_STDARG, 1, + [standalone <linux/stdarg.h> exists]) + ],[ + AC_MSG_RESULT([no]) + ]) +]) diff --git a/config/kernel.m4 b/config/kernel.m4 index 5ea2286db..0b94f3bd9 100644 --- a/config/kernel.m4 +++ b/config/kernel.m4 @@ -133,6 +133,7 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_SRC], [ ZFS_AC_KERNEL_SRC_SIGINFO ZFS_AC_KERNEL_SRC_SET_SPECIAL_STATE ZFS_AC_KERNEL_SRC_VFS_SET_PAGE_DIRTY_NOBUFFERS + ZFS_AC_KERNEL_SRC_STANDALONE_LINUX_STDARG AC_MSG_CHECKING([for available kernel interfaces]) ZFS_LINUX_TEST_COMPILE_ALL([kabi]) @@ -239,6 +240,7 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [ ZFS_AC_KERNEL_SIGINFO ZFS_AC_KERNEL_SET_SPECIAL_STATE ZFS_AC_KERNEL_VFS_SET_PAGE_DIRTY_NOBUFFERS + ZFS_AC_KERNEL_STANDALONE_LINUX_STDARG ]) dnl # |