| dnl # |
| dnl # Enabled by default it provides a minimal level of memory tracking. |
| dnl # A total count of bytes allocated is kept for each alloc and free. |
| dnl # Then at module unload time a report to the console will be printed |
| dnl # if memory was leaked. |
| dnl # |
| AC_DEFUN([SPL_AC_DEBUG_KMEM], [ |
| AC_ARG_ENABLE([debug-kmem], |
| [AS_HELP_STRING([--enable-debug-kmem], |
| [Enable basic kmem accounting @<:@default=no@:>@])], |
| [], |
| [enable_debug_kmem=no]) |
| |
| AS_IF([test "x$enable_debug_kmem" = xyes], |
| [ |
| KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG_KMEM" |
| DEBUG_KMEM="_with_debug_kmem" |
| AC_DEFINE([DEBUG_KMEM], [1], |
| [Define to 1 to enable basic kmem accounting]) |
| ], [ |
| DEBUG_KMEM="_without_debug_kmem" |
| ]) |
| |
| AC_SUBST(DEBUG_KMEM) |
| AC_MSG_CHECKING([whether basic kmem accounting is enabled]) |
| AC_MSG_RESULT([$enable_debug_kmem]) |
| ]) |
| |
| dnl # |
| dnl # Disabled by default it provides detailed memory tracking. This |
| dnl # feature also requires --enable-debug-kmem to be set. When enabled |
| dnl # not only will total bytes be tracked but also the location of every |
| dnl # alloc and free. When the SPL module is unloaded a list of all leaked |
| dnl # addresses and where they were allocated will be dumped to the console. |
| dnl # Enabling this feature has a significant impact on performance but it |
| dnl # makes finding memory leaks pretty straight forward. |
| dnl # |
| AC_DEFUN([SPL_AC_DEBUG_KMEM_TRACKING], [ |
| AC_ARG_ENABLE([debug-kmem-tracking], |
| [AS_HELP_STRING([--enable-debug-kmem-tracking], |
| [Enable detailed kmem tracking @<:@default=no@:>@])], |
| [], |
| [enable_debug_kmem_tracking=no]) |
| |
| AS_IF([test "x$enable_debug_kmem_tracking" = xyes], |
| [ |
| KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG_KMEM_TRACKING" |
| DEBUG_KMEM_TRACKING="_with_debug_kmem_tracking" |
| AC_DEFINE([DEBUG_KMEM_TRACKING], [1], |
| [Define to 1 to enable detailed kmem tracking]) |
| ], [ |
| DEBUG_KMEM_TRACKING="_without_debug_kmem_tracking" |
| ]) |
| |
| AC_SUBST(DEBUG_KMEM_TRACKING) |
| AC_MSG_CHECKING([whether detailed kmem tracking is enabled]) |
| AC_MSG_RESULT([$enable_debug_kmem_tracking]) |
| ]) |