projects / mirror_zfs.git / blame
| Commit | Line | Data |
|---|---|---|
| 8c7d604c BB |
1 | dnl # |
| 2 | dnl # Detect objtool functionality. | |
| 3 | dnl # | |
| 4 | ||
| 5 | dnl # | |
| 6 | dnl # Kernel 5.10: linux/frame.h was renamed linux/objtool.h | |
| 7 | dnl # | |
| 8 | AC_DEFUN([ZFS_AC_KERNEL_OBJTOOL_HEADER], [ | |
| 9 | AC_MSG_CHECKING([whether objtool header is available]) | |
| 10 | ZFS_LINUX_TRY_COMPILE([ | |
| 11 | #include <linux/objtool.h> | |
| 12 | ],[ | |
| 13 | ],[ | |
| 14 | AC_DEFINE(HAVE_KERNEL_OBJTOOL_HEADER, 1, | |
| 15 | [kernel has linux/objtool.h]) | |
| 16 | AC_MSG_RESULT(linux/objtool.h) | |
| 17 | ],[ | |
| 18 | AC_MSG_RESULT(linux/frame.h) | |
| 19 | ]) | |
| 20 | ]) | |
| 21 | ||
| 650383f2 | 22 | dnl # |
| 608f8749 | 23 | dnl # Check for objtool support. |
| 650383f2 | 24 | dnl # |
| 608f8749 BB |
25 | AC_DEFUN([ZFS_AC_KERNEL_SRC_OBJTOOL], [ |
| 26 | ||
| 27 | dnl # 4.6 API for compile-time stack validation | |
| 28 | ZFS_LINUX_TEST_SRC([objtool], [ | |
| 650383f2 | 29 | #undef __ASSEMBLY__ |
| 96951e03 | 30 | #include <asm/ptrace.h> |
| 650383f2 GN |
31 | #include <asm/frame.h> |
| 32 | ],[ | |
| 33 | #if !defined(FRAME_BEGIN) | |
| 96951e03 | 34 | #error "FRAME_BEGIN is not defined" |
| 650383f2 | 35 | #endif |
| c28a6773 | 36 | ]) |
| c28a6773 | 37 | |
| 608f8749 BB |
38 | dnl # 4.6 API added STACK_FRAME_NON_STANDARD macro |
| 39 | ZFS_LINUX_TEST_SRC([stack_frame_non_standard], [ | |
| 8c7d604c BB |
40 | #ifdef HAVE_KERNEL_OBJTOOL_HEADER |
| 41 | #include <linux/objtool.h> | |
| 42 | #else | |
| c28a6773 | 43 | #include <linux/frame.h> |
| 8c7d604c | 44 | #endif |
| c28a6773 BB |
45 | ],[ |
| 46 | #if !defined(STACK_FRAME_NON_STANDARD) | |
| 96951e03 | 47 | #error "STACK_FRAME_NON_STANDARD is not defined." |
| c28a6773 | 48 | #endif |
| 608f8749 BB |
49 | ]) |
| 50 | ]) | |
| 51 | ||
| 52 | AC_DEFUN([ZFS_AC_KERNEL_OBJTOOL], [ | |
| 53 | AC_MSG_CHECKING( | |
| 54 | [whether compile-time stack validation (objtool) is available]) | |
| 55 | ZFS_LINUX_TEST_RESULT([objtool], [ | |
| c28a6773 | 56 | AC_MSG_RESULT(yes) |
| 608f8749 BB |
57 | AC_DEFINE(HAVE_KERNEL_OBJTOOL, 1, |
| 58 | [kernel does stack verification]) | |
| 59 | ||
| 60 | AC_MSG_CHECKING([whether STACK_FRAME_NON_STANDARD is defined]) | |
| 61 | ZFS_LINUX_TEST_RESULT([stack_frame_non_standard], [ | |
| 62 | AC_MSG_RESULT(yes) | |
| 63 | AC_DEFINE(HAVE_STACK_FRAME_NON_STANDARD, 1, | |
| 64 | [STACK_FRAME_NON_STANDARD is defined]) | |
| 65 | ],[ | |
| 66 | AC_MSG_RESULT(no) | |
| 67 | ]) | |
| 650383f2 GN |
68 | ],[ |
| 69 | AC_MSG_RESULT(no) | |
| 70 | ]) | |
| 71 | ]) |