projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| fb32e03f MD |
1 | # |
| 2 | # General architecture dependent options | |
| 3 | # | |
| 125e5645 MD |
4 | |
| 5 | config OPROFILE | |
| 6 | tristate "OProfile system profiling (EXPERIMENTAL)" | |
| 7 | depends on PROFILING | |
| 8 | depends on HAVE_OPROFILE | |
| 9 | help | |
| 10 | OProfile is a profiling system capable of profiling the | |
| 11 | whole system, include the kernel, kernel modules, libraries, | |
| 12 | and applications. | |
| 13 | ||
| 14 | If unsure, say N. | |
| 15 | ||
| 16 | config HAVE_OPROFILE | |
| 17 | def_bool n | |
| 18 | ||
| 19 | config KPROBES | |
| 20 | bool "Kprobes" | |
| 21 | depends on KALLSYMS && MODULES | |
| 22 | depends on HAVE_KPROBES | |
| 23 | help | |
| 24 | Kprobes allows you to trap at almost any kernel address and | |
| 25 | execute a callback function. register_kprobe() establishes | |
| 26 | a probepoint and specifies the callback. Kprobes is useful | |
| 27 | for kernel debugging, non-intrusive instrumentation and testing. | |
| 28 | If in doubt, say "N". | |
| 29 | ||
| 58340a07 JB |
30 | config HAVE_EFFICIENT_UNALIGNED_ACCESS |
| 31 | def_bool n | |
| 32 | help | |
| 33 | Some architectures are unable to perform unaligned accesses | |
| 34 | without the use of get_unaligned/put_unaligned. Others are | |
| 35 | unable to perform such accesses efficiently (e.g. trap on | |
| 36 | unaligned access and require fixing it up in the exception | |
| 37 | handler.) | |
| 38 | ||
| 39 | This symbol should be selected by an architecture if it can | |
| 40 | perform unaligned accesses efficiently to allow different | |
| 41 | code paths to be selected for these cases. Some network | |
| 42 | drivers, for example, could opt to not fix up alignment | |
| 43 | problems with received packets if doing so would not help | |
| 44 | much. | |
| 45 | ||
| 46 | See Documentation/unaligned-memory-access.txt for more | |
| 47 | information on the topic of unaligned memory accesses. | |
| 48 | ||
| 9edddaa2 AM |
49 | config KRETPROBES |
| 50 | def_bool y | |
| 51 | depends on KPROBES && HAVE_KRETPROBES | |
| 52 | ||
| 28b2ee20 RR |
53 | config HAVE_IOREMAP_PROT |
| 54 | def_bool n | |
| 55 | ||
| 125e5645 MD |
56 | config HAVE_KPROBES |
| 57 | def_bool n | |
| 9edddaa2 AM |
58 | |
| 59 | config HAVE_KRETPROBES | |
| 60 | def_bool n | |
| 74bc7cee AK |
61 | |
| 62 | config HAVE_DMA_ATTRS | |
| 63 | def_bool n | |
| 3d442233 JA |
64 | |
| 65 | config USE_GENERIC_SMP_HELPERS | |
| 66 | def_bool n | |
| 9483a578 DB |
67 | |
| 68 | config HAVE_CLK | |
| 69 | def_bool n | |
| 70 | help | |
| 71 | The <linux/clk.h> calls support software clock gating and | |
| 72 | thus are a key power management tool on many systems. | |
| 73 |