1dnl # 2dnl # Check for objtool support. 3dnl # 4AC_DEFUN([ZFS_AC_KERNEL_SRC_OBJTOOL], [ 5 6 dnl # 4.6 API for compile-time stack validation 7 ZFS_LINUX_TEST_SRC([objtool], [ 8 #undef __ASSEMBLY__ 9 #include <asm/frame.h> 10 ],[ 11 #if !defined(FRAME_BEGIN) 12 CTASSERT(1); 13 #endif 14 ]) 15 16 dnl # 4.6 API added STACK_FRAME_NON_STANDARD macro 17 ZFS_LINUX_TEST_SRC([stack_frame_non_standard], [ 18 #include <linux/frame.h> 19 ],[ 20 #if !defined(STACK_FRAME_NON_STANDARD) 21 CTASSERT(1); 22 #endif 23 ]) 24]) 25 26AC_DEFUN([ZFS_AC_KERNEL_OBJTOOL], [ 27 AC_MSG_CHECKING( 28 [whether compile-time stack validation (objtool) is available]) 29 ZFS_LINUX_TEST_RESULT([objtool], [ 30 AC_MSG_RESULT(yes) 31 AC_DEFINE(HAVE_KERNEL_OBJTOOL, 1, 32 [kernel does stack verification]) 33 34 AC_MSG_CHECKING([whether STACK_FRAME_NON_STANDARD is defined]) 35 ZFS_LINUX_TEST_RESULT([stack_frame_non_standard], [ 36 AC_MSG_RESULT(yes) 37 AC_DEFINE(HAVE_STACK_FRAME_NON_STANDARD, 1, 38 [STACK_FRAME_NON_STANDARD is defined]) 39 ],[ 40 AC_MSG_RESULT(no) 41 ]) 42 ],[ 43 AC_MSG_RESULT(no) 44 ]) 45]) 46