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96951e0327
The m4 objtool configure check can incorrectly fail because of a missing header in the test. This appears to be the result of a recent kernel change and was observed on the Fedora 5.8.11-200 kernel. In file included from /home/fedora/zfs/build/objtool/objtool.c:75: ./arch/x86/include/asm/frame.h💯57: error: 'struct pt_regs' declared inside parameter list will not be visible outside of this definition or declaration [-Werror] The consequence of this is that the "stack_frame_non_standard" check is never run and HAVE_STACK_FRAME_NON_STANDARD is set incorrectly which results in a build failure. This change adds the appropriate header to the "objtool" check so it now behaves as intended. Reviewed-by: Kjeld Schouten <kjeld@schouten-lebbing.nl> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #10990
47 lines
1.1 KiB
Plaintext
47 lines
1.1 KiB
Plaintext
dnl #
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dnl # Check for objtool support.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_OBJTOOL], [
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dnl # 4.6 API for compile-time stack validation
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ZFS_LINUX_TEST_SRC([objtool], [
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#undef __ASSEMBLY__
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#include <asm/ptrace.h>
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#include <asm/frame.h>
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],[
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#if !defined(FRAME_BEGIN)
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#error "FRAME_BEGIN is not defined"
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#endif
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])
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dnl # 4.6 API added STACK_FRAME_NON_STANDARD macro
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ZFS_LINUX_TEST_SRC([stack_frame_non_standard], [
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#include <linux/frame.h>
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],[
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#if !defined(STACK_FRAME_NON_STANDARD)
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#error "STACK_FRAME_NON_STANDARD is not defined."
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#endif
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_OBJTOOL], [
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AC_MSG_CHECKING(
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[whether compile-time stack validation (objtool) is available])
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ZFS_LINUX_TEST_RESULT([objtool], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_KERNEL_OBJTOOL, 1,
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[kernel does stack verification])
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AC_MSG_CHECKING([whether STACK_FRAME_NON_STANDARD is defined])
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ZFS_LINUX_TEST_RESULT([stack_frame_non_standard], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_STACK_FRAME_NON_STANDARD, 1,
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[STACK_FRAME_NON_STANDARD is defined])
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],[
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AC_MSG_RESULT(no)
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])
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],[
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AC_MSG_RESULT(no)
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])
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])
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