| # |
| # General architecture dependent options |
| # |
| |
| config OPROFILE |
| tristate "OProfile system profiling (EXPERIMENTAL)" |
| depends on PROFILING |
| depends on HAVE_OPROFILE |
| help |
| OProfile is a profiling system capable of profiling the |
| whole system, include the kernel, kernel modules, libraries, |
| and applications. |
| |
| If unsure, say N. |
| |
| config HAVE_OPROFILE |
| def_bool n |
| |
| config KPROBES |
| bool "Kprobes" |
| depends on KALLSYMS && MODULES |
| depends on HAVE_KPROBES |
| help |
| Kprobes allows you to trap at almost any kernel address and |
| execute a callback function. register_kprobe() establishes |
| a probepoint and specifies the callback. Kprobes is useful |
| for kernel debugging, non-intrusive instrumentation and testing. |
| If in doubt, say "N". |
| |
| config HAVE_EFFICIENT_UNALIGNED_ACCESS |
| def_bool n |
| help |
| Some architectures are unable to perform unaligned accesses |
| without the use of get_unaligned/put_unaligned. Others are |
| unable to perform such accesses efficiently (e.g. trap on |
| unaligned access and require fixing it up in the exception |
| handler.) |
| |
| This symbol should be selected by an architecture if it can |
| perform unaligned accesses efficiently to allow different |
| code paths to be selected for these cases. Some network |
| drivers, for example, could opt to not fix up alignment |
| problems with received packets if doing so would not help |
| much. |
| |
| See Documentation/unaligned-memory-access.txt for more |
| information on the topic of unaligned memory accesses. |
| |
| config KRETPROBES |
| def_bool y |
| depends on KPROBES && HAVE_KRETPROBES |
| |
| config HAVE_IOREMAP_PROT |
| def_bool n |
| |
| config HAVE_KPROBES |
| def_bool n |
| |
| config HAVE_KRETPROBES |
| def_bool n |
| |
| config HAVE_DMA_ATTRS |
| def_bool n |
| |
| config USE_GENERIC_SMP_HELPERS |
| def_bool n |
| |
| config HAVE_CLK |
| def_bool n |
| help |
| The <linux/clk.h> calls support software clock gating and |
| thus are a key power management tool on many systems. |
| |