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Force --enable-debug on FreeBSD if INVARIANTS is set 

There's already logic to force INVARIANTS on for building if it's
present in the running kernel; however, not having DEBUG enabled
when DEBUG and INVARIANTS are can cause strange panics.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes #12185
Closes #12163
This commit is contained in:
Rich Ercolani 2021-06-07 15:29:27 -04:00 committed by Brian Behlendorf
parent a377bde727
commit 2f23f0f940
1 changed files with 17 additions and 0 deletions
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17
config/zfs-build.m4
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@ -34,6 +34,9 @@ dnl # When debugging is enabled:
dnl # - Enable all ASSERTs (-DDEBUG)
dnl # - Promote all compiler warnings to errors (-Werror)
dnl #
dnl # (If INVARIANTS is detected, we need to force DEBUG, or strange panics
dnl # can ensue.)
dnl #
AC_DEFUN([ZFS_AC_DEBUG], [
AC_MSG_CHECKING([whether assertion support will be enabled])
AC_ARG_ENABLE([debug],
@ -49,6 +52,20 @@ AC_DEFUN([ZFS_AC_DEBUG], [
[ZFS_AC_DEBUG_DISABLE],
[AC_MSG_ERROR([Unknown option $enable_debug])])
AS_CASE(["x$enable_invariants"],
["xyes"],
[],
["xno"],
[],
[ZFS_AC_DEBUG_INVARIANTS_DETECT])
AS_CASE(["x$enable_invariants"],
["xyes"],
[ZFS_AC_DEBUG_ENABLE],
["xno"],
[],
[AC_MSG_ERROR([Unknown option $enable_invariants])])
AC_SUBST(DEBUG_CFLAGS)
AC_SUBST(DEBUG_CPPFLAGS)
AC_SUBST(DEBUG_LDFLAGS)