Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | menu "Kernel hacking" |
2 | ||
3 | source "lib/Kconfig.debug" | |
4 | ||
1fd15b87 RK |
5 | config ARM_PTDUMP |
6 | bool "Export kernel pagetable layout to userspace via debugfs" | |
7 | depends on DEBUG_KERNEL | |
8 | select DEBUG_FS | |
9 | ---help--- | |
10 | Say Y here if you want to show the kernel pagetable layout in a | |
11 | debugfs file. This information is only useful for kernel developers | |
12 | who are working in architecture specific areas of the kernel. | |
13 | It is probably not a good idea to enable this feature in a production | |
14 | kernel. | |
15 | If in doubt, say "N" | |
16 | ||
087aaffc NP |
17 | config STRICT_DEVMEM |
18 | bool "Filter access to /dev/mem" | |
19 | depends on MMU | |
20 | ---help--- | |
21 | If this option is disabled, you allow userspace (root) access to all | |
22 | of memory, including kernel and userspace memory. Accidental | |
23 | access to this is obviously disastrous, but specific access can | |
24 | be used by people debugging the kernel. | |
25 | ||
26 | If this option is switched on, the /dev/mem file only allows | |
27 | userspace access to memory mapped peripherals. | |
28 | ||
29 | If in doubt, say Y. | |
30 | ||
adf8b37b | 31 | # RMK wants arm kernels compiled with frame pointers or stack unwinding. |
1da177e4 LT |
32 | # If you know what you are doing and are willing to live without stack |
33 | # traces, you can get a slightly smaller kernel by setting this option to | |
34 | # n, but then RMK will have to kill you ;). | |
35 | config FRAME_POINTER | |
36 | bool | |
16c79651 | 37 | depends on !THUMB2_KERNEL |
0e341af8 | 38 | default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER |
1da177e4 LT |
39 | help |
40 | If you say N here, the resulting kernel will be slightly smaller and | |
adf8b37b CM |
41 | faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled, |
42 | when a problem occurs with the kernel, the information that is | |
43 | reported is severely limited. | |
44 | ||
45 | config ARM_UNWIND | |
4a50bfe3 | 46 | bool "Enable stack unwinding support (EXPERIMENTAL)" |
d6f94fa0 | 47 | depends on AEABI |
adf8b37b CM |
48 | default y |
49 | help | |
50 | This option enables stack unwinding support in the kernel | |
51 | using the information automatically generated by the | |
52 | compiler. The resulting kernel image is slightly bigger but | |
53 | the performance is not affected. Currently, this feature | |
54 | only works with EABI compilers. If unsure say Y. | |
1da177e4 | 55 | |
09bfafac RV |
56 | config OLD_MCOUNT |
57 | bool | |
58 | depends on FUNCTION_TRACER && FRAME_POINTER | |
59 | default y | |
60 | ||
1da177e4 LT |
61 | config DEBUG_USER |
62 | bool "Verbose user fault messages" | |
63 | help | |
64 | When a user program crashes due to an exception, the kernel can | |
65 | print a brief message explaining what the problem was. This is | |
66 | sometimes helpful for debugging but serves no purpose on a | |
67 | production system. Most people should say N here. | |
68 | ||
69 | In addition, you need to pass user_debug=N on the kernel command | |
70 | line to enable this feature. N consists of the sum of: | |
71 | ||
72 | 1 - undefined instruction events | |
73 | 2 - system calls | |
74 | 4 - invalid data aborts | |
75 | 8 - SIGSEGV faults | |
76 | 16 - SIGBUS faults | |
77 | ||
1da177e4 LT |
78 | # These options are only for real kernel hackers who want to get their hands dirty. |
79 | config DEBUG_LL | |
4f5ef922 | 80 | bool "Kernel low-level debugging functions (read help!)" |
1da177e4 LT |
81 | depends on DEBUG_KERNEL |
82 | help | |
35efb606 | 83 | Say Y here to include definitions of printascii, printch, printhex |
1da177e4 LT |
84 | in the kernel. This is helpful if you are debugging code that |
85 | executes before the console is initialized. | |
86 | ||
4f5ef922 WD |
87 | Note that selecting this option will limit the kernel to a single |
88 | UART definition, as specified below. Attempting to boot the kernel | |
89 | image on a different platform *will not work*, so this option should | |
90 | not be enabled for kernels that are intended to be portable. | |
91 | ||
17916b28 WD |
92 | choice |
93 | prompt "Kernel low-level debugging port" | |
94 | depends on DEBUG_LL | |
95 | ||
13079a73 JCPV |
96 | config AT91_DEBUG_LL_DBGU0 |
97 | bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10 and 9rl" | |
98 | depends on HAVE_AT91_DBGU0 | |
99 | ||
100 | config AT91_DEBUG_LL_DBGU1 | |
9918ceaf | 101 | bool "Kernel low-level debugging on 9263 and 9g45" |
13079a73 JCPV |
102 | depends on HAVE_AT91_DBGU1 |
103 | ||
f1ac922d SW |
104 | config DEBUG_BCM2835 |
105 | bool "Kernel low-level debugging on BCM2835 PL011 UART" | |
106 | depends on ARCH_BCM2835 | |
5c972af4 | 107 | select DEBUG_UART_PL01X |
f1ac922d | 108 | |
06580275 HM |
109 | config DEBUG_BCM_5301X |
110 | bool "Kernel low-level debugging on BCM5301X UART1" | |
111 | depends on ARCH_BCM_5301X | |
112 | select DEBUG_UART_PL01X | |
113 | ||
753d1243 CD |
114 | config DEBUG_BCM_KONA_UART |
115 | bool "Kernel low-level debugging messages via BCM KONA UART" | |
7aa2077b | 116 | depends on ARCH_BCM_MOBILE |
753d1243 CD |
117 | select DEBUG_UART_8250 |
118 | help | |
119 | Say Y here if you want kernel low-level debugging support | |
120 | on Broadcom SoC platforms. | |
121 | This low level debug works for Broadcom | |
122 | mobile SoCs in the Kona family of chips (e.g. bcm28155, | |
123 | bcm11351, etc...) | |
124 | ||
caad0b41 SH |
125 | config DEBUG_BERLIN_UART |
126 | bool "Marvell Berlin SoC Debug UART" | |
127 | depends on ARCH_BERLIN | |
128 | select DEBUG_UART_8250 | |
129 | help | |
130 | Say Y here if you want kernel low-level debugging support | |
131 | on Marvell Berlin SoC based platforms. | |
132 | ||
164acf96 SB |
133 | config DEBUG_CLPS711X_UART1 |
134 | bool "Kernel low-level debugging messages via UART1" | |
135 | depends on ARCH_CLPS711X | |
136 | help | |
137 | Say Y here if you want the debug print routines to direct | |
138 | their output to the first serial port on these devices. | |
17916b28 WD |
139 | |
140 | config DEBUG_CLPS711X_UART2 | |
141 | bool "Kernel low-level debugging messages via UART2" | |
142 | depends on ARCH_CLPS711X | |
143 | help | |
144 | Say Y here if you want the debug print routines to direct | |
145 | their output to the second serial port on these devices. | |
17916b28 | 146 | |
29c9b7be AB |
147 | config DEBUG_CNS3XXX |
148 | bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx" | |
149 | depends on ARCH_CNS3XXX | |
5c972af4 | 150 | select DEBUG_UART_PL01X |
29c9b7be AB |
151 | help |
152 | Say Y here if you want the debug print routines to direct | |
153 | their output to the CNS3xxx UART0. | |
154 | ||
477099f1 UKK |
155 | config DEBUG_DAVINCI_DA8XX_UART1 |
156 | bool "Kernel low-level debugging on DaVinci DA8XX using UART1" | |
157 | depends on ARCH_DAVINCI_DA8XX | |
97bd1a48 | 158 | select DEBUG_UART_8250 |
477099f1 UKK |
159 | help |
160 | Say Y here if you want the debug print routines to direct | |
161 | their output to UART1 serial port on DaVinci DA8XX devices. | |
162 | ||
163 | config DEBUG_DAVINCI_DA8XX_UART2 | |
164 | bool "Kernel low-level debugging on DaVinci DA8XX using UART2" | |
165 | depends on ARCH_DAVINCI_DA8XX | |
97bd1a48 | 166 | select DEBUG_UART_8250 |
477099f1 UKK |
167 | help |
168 | Say Y here if you want the debug print routines to direct | |
169 | their output to UART2 serial port on DaVinci DA8XX devices. | |
170 | ||
171 | config DEBUG_DAVINCI_DMx_UART0 | |
172 | bool "Kernel low-level debugging on DaVinci DMx using UART0" | |
173 | depends on ARCH_DAVINCI_DMx | |
97bd1a48 | 174 | select DEBUG_UART_8250 |
477099f1 UKK |
175 | help |
176 | Say Y here if you want the debug print routines to direct | |
177 | their output to UART0 serial port on DaVinci DMx devices. | |
178 | ||
aaf5e0be NB |
179 | config DEBUG_ZYNQ_UART0 |
180 | bool "Kernel low-level debugging on Xilinx Zynq using UART0" | |
181 | depends on ARCH_ZYNQ | |
182 | help | |
183 | Say Y here if you want the debug print routines to direct | |
184 | their output to UART0 on the Zynq platform. | |
185 | ||
186 | config DEBUG_ZYNQ_UART1 | |
187 | bool "Kernel low-level debugging on Xilinx Zynq using UART1" | |
188 | depends on ARCH_ZYNQ | |
189 | help | |
190 | Say Y here if you want the debug print routines to direct | |
191 | their output to UART1 on the Zynq platform. | |
192 | ||
193 | If you have a ZC702 board and want early boot messages to | |
194 | appear on the USB serial adaptor, select this option. | |
195 | ||
e76f4750 RK |
196 | config DEBUG_DC21285_PORT |
197 | bool "Kernel low-level debugging messages via footbridge serial port" | |
198 | depends on FOOTBRIDGE | |
199 | help | |
200 | Say Y here if you want the debug print routines to direct | |
201 | their output to the serial port in the DC21285 (Footbridge). | |
202 | ||
203 | config DEBUG_FOOTBRIDGE_COM1 | |
204 | bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1" | |
205 | depends on FOOTBRIDGE | |
206 | help | |
207 | Say Y here if you want the debug print routines to direct | |
208 | their output to the 8250 at PCI COM1. | |
209 | ||
8d258beb HZ |
210 | config DEBUG_HI3620_UART |
211 | bool "Hisilicon HI3620 Debug UART" | |
212 | depends on ARCH_HI3xxx | |
213 | select DEBUG_UART_PL01X | |
214 | help | |
215 | Say Y here if you want kernel low-level debugging support | |
216 | on HI3620 UART. | |
217 | ||
218 | config DEBUG_HI3716_UART | |
219 | bool "Hisilicon Hi3716 Debug UART" | |
220 | depends on ARCH_HI3xxx | |
221 | select DEBUG_UART_PL01X | |
222 | help | |
223 | Say Y here if you want kernel low-level debugging support | |
224 | on HI3716 UART. | |
225 | ||
12aae309 HY |
226 | config DEBUG_HIX5HD2_UART |
227 | bool "Hisilicon Hix5hd2 Debug UART" | |
228 | depends on ARCH_HIX5HD2 | |
229 | select DEBUG_UART_PL01X | |
230 | help | |
231 | Say Y here if you want kernel low-level debugging support | |
232 | on Hix5hd2 UART. | |
233 | ||
c9a1df48 HZ |
234 | config DEBUG_HIP04_UART |
235 | bool "Hisilicon HiP04 Debug UART" | |
236 | depends on ARCH_HIP04 | |
237 | select DEBUG_UART_8250 | |
238 | help | |
239 | Say Y here if you want kernel low-level debugging support | |
240 | on HIP04 UART. | |
241 | ||
220e6cf7 RH |
242 | config DEBUG_HIGHBANK_UART |
243 | bool "Kernel low-level debugging messages via Highbank UART" | |
244 | depends on ARCH_HIGHBANK | |
5c972af4 | 245 | select DEBUG_UART_PL01X |
220e6cf7 RH |
246 | help |
247 | Say Y here if you want the debug print routines to direct | |
248 | their output to the UART on Highbank based devices. | |
249 | ||
f350b861 SG |
250 | config DEBUG_IMX1_UART |
251 | bool "i.MX1 Debug UART" | |
252 | depends on SOC_IMX1 | |
253 | help | |
254 | Say Y here if you want kernel low-level debugging support | |
255 | on i.MX1. | |
256 | ||
257 | config DEBUG_IMX23_UART | |
258 | bool "i.MX23 Debug UART" | |
259 | depends on SOC_IMX23 | |
5c972af4 | 260 | select DEBUG_UART_PL01X |
f350b861 SG |
261 | help |
262 | Say Y here if you want kernel low-level debugging support | |
263 | on i.MX23. | |
264 | ||
265 | config DEBUG_IMX25_UART | |
266 | bool "i.MX25 Debug UART" | |
267 | depends on SOC_IMX25 | |
268 | help | |
269 | Say Y here if you want kernel low-level debugging support | |
270 | on i.MX25. | |
271 | ||
272 | config DEBUG_IMX21_IMX27_UART | |
273 | bool "i.MX21 and i.MX27 Debug UART" | |
274 | depends on SOC_IMX21 || SOC_IMX27 | |
275 | help | |
276 | Say Y here if you want kernel low-level debugging support | |
277 | on i.MX21 or i.MX27. | |
278 | ||
279 | config DEBUG_IMX28_UART | |
280 | bool "i.MX28 Debug UART" | |
281 | depends on SOC_IMX28 | |
5c972af4 | 282 | select DEBUG_UART_PL01X |
f350b861 SG |
283 | help |
284 | Say Y here if you want kernel low-level debugging support | |
285 | on i.MX28. | |
286 | ||
4ad625d4 SG |
287 | config DEBUG_IMX31_UART |
288 | bool "i.MX31 Debug UART" | |
289 | depends on SOC_IMX31 | |
f350b861 SG |
290 | help |
291 | Say Y here if you want kernel low-level debugging support | |
4ad625d4 SG |
292 | on i.MX31. |
293 | ||
294 | config DEBUG_IMX35_UART | |
295 | bool "i.MX35 Debug UART" | |
296 | depends on SOC_IMX35 | |
297 | help | |
298 | Say Y here if you want kernel low-level debugging support | |
299 | on i.MX35. | |
f350b861 | 300 | |
ad364a70 GU |
301 | config DEBUG_IMX50_UART |
302 | bool "i.MX50 Debug UART" | |
303 | depends on SOC_IMX50 | |
304 | help | |
305 | Say Y here if you want kernel low-level debugging support | |
306 | on i.MX50. | |
307 | ||
f350b861 SG |
308 | config DEBUG_IMX51_UART |
309 | bool "i.MX51 Debug UART" | |
310 | depends on SOC_IMX51 | |
311 | help | |
312 | Say Y here if you want kernel low-level debugging support | |
313 | on i.MX51. | |
314 | ||
7356420c FE |
315 | config DEBUG_IMX53_UART |
316 | bool "i.MX53 Debug UART" | |
317 | depends on SOC_IMX53 | |
f350b861 SG |
318 | help |
319 | Say Y here if you want kernel low-level debugging support | |
7356420c | 320 | on i.MX53. |
f350b861 | 321 | |
49c9e60e | 322 | config DEBUG_IMX6Q_UART |
3c03a2fe | 323 | bool "i.MX6Q/DL Debug UART" |
785d7fab DB |
324 | depends on SOC_IMX6Q |
325 | help | |
326 | Say Y here if you want kernel low-level debugging support | |
3c03a2fe | 327 | on i.MX6Q/DL. |
bac89d75 | 328 | |
34e8a16b SG |
329 | config DEBUG_IMX6SL_UART |
330 | bool "i.MX6SL Debug UART" | |
331 | depends on SOC_IMX6SL | |
332 | help | |
333 | Say Y here if you want kernel low-level debugging support | |
334 | on i.MX6SL. | |
335 | ||
74368e81 SG |
336 | config DEBUG_IMX6SX_UART |
337 | bool "i.MX6SX Debug UART" | |
338 | depends on SOC_IMX6SX | |
339 | help | |
340 | Say Y here if you want kernel low-level debugging support | |
341 | on i.MX6SX. | |
342 | ||
828989ad SS |
343 | config DEBUG_KEYSTONE_UART0 |
344 | bool "Kernel low-level debugging on KEYSTONE2 using UART0" | |
345 | depends on ARCH_KEYSTONE | |
f2acf003 | 346 | select DEBUG_UART_8250 |
828989ad SS |
347 | help |
348 | Say Y here if you want the debug print routines to direct | |
349 | their output to UART0 serial port on KEYSTONE2 devices. | |
350 | ||
351 | config DEBUG_KEYSTONE_UART1 | |
352 | bool "Kernel low-level debugging on KEYSTONE2 using UART1" | |
353 | depends on ARCH_KEYSTONE | |
f2acf003 | 354 | select DEBUG_UART_8250 |
828989ad SS |
355 | help |
356 | Say Y here if you want the debug print routines to direct | |
357 | their output to UART1 serial port on KEYSTONE2 devices. | |
358 | ||
fa4cd2a8 HZ |
359 | config DEBUG_MMP_UART2 |
360 | bool "Kernel low-level debugging message via MMP UART2" | |
361 | depends on ARCH_MMP | |
4a003647 | 362 | select DEBUG_UART_8250 |
fa4cd2a8 HZ |
363 | help |
364 | Say Y here if you want kernel low-level debugging support | |
365 | on MMP UART2. | |
366 | ||
367 | config DEBUG_MMP_UART3 | |
368 | bool "Kernel low-level debugging message via MMP UART3" | |
369 | depends on ARCH_MMP | |
4a003647 | 370 | select DEBUG_UART_8250 |
fa4cd2a8 HZ |
371 | help |
372 | Say Y here if you want kernel low-level debugging support | |
373 | on MMP UART3. | |
374 | ||
7098cff2 II |
375 | config DEBUG_MSM_UART |
376 | bool "Kernel low-level debugging messages via MSM UART" | |
377 | depends on ARCH_MSM | |
952aeeb2 WD |
378 | help |
379 | Say Y here if you want the debug print routines to direct | |
7098cff2 | 380 | their output to the serial port on MSM devices. |
952aeeb2 | 381 | |
7098cff2 II |
382 | ARCH DEBUG_UART_PHYS DEBUG_UART_BASE # |
383 | MSM7X00A, QSD8X50 0xa9a00000 0xe1000000 UART1 | |
384 | MSM7X00A, QSD8X50 0xa9b00000 0xe1000000 UART2 | |
385 | MSM7X00A, QSD8X50 0xa9c00000 0xe1000000 UART3 | |
952aeeb2 | 386 | |
7098cff2 II |
387 | MSM7X30 0xaca00000 0xe1000000 UART1 |
388 | MSM7X30 0xacb00000 0xe1000000 UART2 | |
389 | MSM7X30 0xacc00000 0xe1000000 UART3 | |
952aeeb2 | 390 | |
7098cff2 II |
391 | Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration |
392 | options based on your needs. | |
952aeeb2 | 393 | |
7098cff2 II |
394 | config DEBUG_QCOM_UARTDM |
395 | bool "Kernel low-level debugging messages via QCOM UARTDM" | |
396 | depends on ARCH_QCOM | |
e76f4750 RK |
397 | help |
398 | Say Y here if you want the debug print routines to direct | |
7098cff2 | 399 | their output to the serial port on Qualcomm devices. |
952aeeb2 | 400 | |
7098cff2 | 401 | ARCH DEBUG_UART_PHYS DEBUG_UART_BASE |
2f528dd3 | 402 | APQ8084 0xf995e000 0xfa75e000 |
7098cff2 II |
403 | MSM8X60 0x19c40000 0xf0040000 |
404 | MSM8960 0x16440000 0xf0040000 | |
405 | MSM8974 0xf991e000 0xfa71e000 | |
406 | ||
407 | Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration | |
408 | options based on your needs. | |
3c8828f6 | 409 | |
bfd5af99 | 410 | config DEBUG_MVEBU_UART |
c2804cd6 | 411 | bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)" |
bfd5af99 | 412 | depends on ARCH_MVEBU |
4a003647 | 413 | select DEBUG_UART_8250 |
bfd5af99 RH |
414 | help |
415 | Say Y here if you want kernel low-level debugging support | |
416 | on MVEBU based platforms. | |
417 | ||
c2804cd6 TP |
418 | This option should be used with the old bootloaders |
419 | that left the internal registers mapped at | |
420 | 0xd0000000. As of today, this is the case on | |
421 | platforms such as the Globalscale Mirabox or the | |
422 | Plathome OpenBlocks AX3, when using the original | |
423 | bootloader. | |
424 | ||
425 | If the wrong DEBUG_MVEBU_UART* option is selected, | |
426 | when u-boot hands over to the kernel, the system | |
427 | silently crashes, with no serial output at all. | |
428 | ||
429 | config DEBUG_MVEBU_UART_ALTERNATE | |
430 | bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)" | |
431 | depends on ARCH_MVEBU | |
4a003647 | 432 | select DEBUG_UART_8250 |
c2804cd6 TP |
433 | help |
434 | Say Y here if you want kernel low-level debugging support | |
435 | on MVEBU based platforms. | |
436 | ||
437 | This option should be used with the new bootloaders | |
438 | that remap the internal registers at 0xf1000000. | |
439 | ||
440 | If the wrong DEBUG_MVEBU_UART* option is selected, | |
441 | when u-boot hands over to the kernel, the system | |
442 | silently crashes, with no serial output at all. | |
443 | ||
c7c3eac6 SG |
444 | config DEBUG_VF_UART |
445 | bool "Vybrid UART" | |
446 | depends on SOC_VF610 | |
447 | help | |
448 | Say Y here if you want kernel low-level debugging support | |
449 | on Vybrid based platforms. | |
450 | ||
266c3479 LW |
451 | config DEBUG_NOMADIK_UART |
452 | bool "Kernel low-level debugging messages via NOMADIK UART" | |
453 | depends on ARCH_NOMADIK | |
5c972af4 | 454 | select DEBUG_UART_PL01X |
266c3479 LW |
455 | help |
456 | Say Y here if you want kernel low-level debugging support | |
457 | on NOMADIK based platforms. | |
458 | ||
9851ca57 DT |
459 | config DEBUG_NSPIRE_CLASSIC_UART |
460 | bool "Kernel low-level debugging via TI-NSPIRE 8250 UART" | |
461 | depends on ARCH_NSPIRE | |
4a003647 | 462 | select DEBUG_UART_8250 |
9851ca57 DT |
463 | help |
464 | Say Y here if you want kernel low-level debugging support | |
465 | on TI-NSPIRE classic models. | |
466 | ||
467 | config DEBUG_NSPIRE_CX_UART | |
468 | bool "Kernel low-level debugging via TI-NSPIRE PL011 UART" | |
469 | depends on ARCH_NSPIRE | |
5c972af4 | 470 | select DEBUG_UART_PL01X |
9851ca57 DT |
471 | help |
472 | Say Y here if you want kernel low-level debugging support | |
473 | on TI-NSPIRE CX models. | |
474 | ||
cce278d2 RK |
475 | config DEBUG_OMAP2UART1 |
476 | bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)" | |
808b7e07 | 477 | depends on ARCH_OMAP2PLUS |
cce278d2 | 478 | select DEBUG_OMAP2PLUS_UART |
808b7e07 | 479 | help |
cce278d2 RK |
480 | This covers at least h4, 2430sdp, 3430sdp, 3630sdp, |
481 | omap3 torpedo and 3530 lv som. | |
482 | ||
483 | config DEBUG_OMAP2UART2 | |
484 | bool "Kernel low-level debugging messages via OMAP2/3/4 UART2" | |
485 | depends on ARCH_OMAP2PLUS | |
486 | select DEBUG_OMAP2PLUS_UART | |
487 | ||
488 | config DEBUG_OMAP2UART3 | |
489 | bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)" | |
490 | depends on ARCH_OMAP2PLUS | |
491 | select DEBUG_OMAP2PLUS_UART | |
492 | ||
493 | config DEBUG_OMAP3UART3 | |
494 | bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)" | |
495 | depends on ARCH_OMAP2PLUS | |
496 | select DEBUG_OMAP2PLUS_UART | |
497 | help | |
498 | This covers at least cm_t3x, beagle, crane, devkit8000, | |
499 | igep00x0, ldp, n900, n9(50), pandora, overo, touchbook, | |
500 | and 3517evm. | |
501 | ||
502 | config DEBUG_OMAP4UART3 | |
503 | bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)" | |
504 | depends on ARCH_OMAP2PLUS | |
505 | select DEBUG_OMAP2PLUS_UART | |
506 | ||
507 | config DEBUG_OMAP3UART4 | |
508 | bool "Kernel low-level debugging messages via OMAP36XX UART4" | |
509 | depends on ARCH_OMAP2PLUS | |
510 | select DEBUG_OMAP2PLUS_UART | |
511 | ||
512 | config DEBUG_OMAP4UART4 | |
513 | bool "Kernel low-level debugging messages via OMAP4/5 UART4" | |
514 | depends on ARCH_OMAP2PLUS | |
515 | select DEBUG_OMAP2PLUS_UART | |
516 | ||
517 | config DEBUG_TI81XXUART1 | |
518 | bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)" | |
519 | depends on ARCH_OMAP2PLUS | |
520 | select DEBUG_OMAP2PLUS_UART | |
521 | ||
522 | config DEBUG_TI81XXUART2 | |
523 | bool "Kernel low-level debugging messages via TI81XX UART2" | |
524 | depends on ARCH_OMAP2PLUS | |
525 | select DEBUG_OMAP2PLUS_UART | |
526 | ||
527 | config DEBUG_TI81XXUART3 | |
528 | bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)" | |
529 | depends on ARCH_OMAP2PLUS | |
530 | select DEBUG_OMAP2PLUS_UART | |
531 | ||
532 | config DEBUG_AM33XXUART1 | |
533 | bool "Kernel low-level debugging messages via AM33XX UART1" | |
534 | depends on ARCH_OMAP2PLUS | |
535 | select DEBUG_OMAP2PLUS_UART | |
536 | ||
537 | config DEBUG_ZOOM_UART | |
538 | bool "Kernel low-level debugging messages via Zoom2/3 UART" | |
539 | depends on ARCH_OMAP2PLUS | |
540 | select DEBUG_OMAP2PLUS_UART | |
808b7e07 | 541 | |
59bba2a9 RH |
542 | config DEBUG_PICOXCELL_UART |
543 | depends on ARCH_PICOXCELL | |
544 | bool "Use PicoXcell UART for low-level debug" | |
0b4cccbe | 545 | select DEBUG_UART_8250 |
59bba2a9 RH |
546 | help |
547 | Say Y here if you want kernel low-level debugging support | |
548 | on PicoXcell based platforms. | |
549 | ||
0a43cd3b HZ |
550 | config DEBUG_PXA_UART1 |
551 | depends on ARCH_PXA | |
552 | bool "Use PXA UART1 for low-level debug" | |
4a003647 | 553 | select DEBUG_UART_8250 |
0a43cd3b HZ |
554 | help |
555 | Say Y here if you want kernel low-level debugging support | |
556 | on PXA UART1. | |
557 | ||
1285b8f8 WD |
558 | config DEBUG_REALVIEW_STD_PORT |
559 | bool "RealView Default UART" | |
560 | depends on ARCH_REALVIEW | |
5c972af4 | 561 | select DEBUG_UART_PL01X |
1285b8f8 WD |
562 | help |
563 | Say Y here if you want the debug print routines to direct | |
564 | their output to the serial port on RealView EB, PB11MP, PBA8 | |
565 | and PBX platforms. | |
566 | ||
567 | config DEBUG_REALVIEW_PB1176_PORT | |
568 | bool "RealView PB1176 UART" | |
569 | depends on MACH_REALVIEW_PB1176 | |
5c972af4 | 570 | select DEBUG_UART_PL01X |
1285b8f8 WD |
571 | help |
572 | Say Y here if you want the debug print routines to direct | |
573 | their output to the standard serial port on the RealView | |
574 | PB1176 platform. | |
575 | ||
cce278d2 RK |
576 | config DEBUG_RK29_UART0 |
577 | bool "Kernel low-level debugging messages via Rockchip RK29 UART0" | |
578 | depends on ARCH_ROCKCHIP | |
4a003647 | 579 | select DEBUG_UART_8250 |
cce278d2 RK |
580 | help |
581 | Say Y here if you want kernel low-level debugging support | |
582 | on Rockchip based platforms. | |
583 | ||
584 | config DEBUG_RK29_UART1 | |
585 | bool "Kernel low-level debugging messages via Rockchip RK29 UART1" | |
586 | depends on ARCH_ROCKCHIP | |
4a003647 | 587 | select DEBUG_UART_8250 |
cce278d2 RK |
588 | help |
589 | Say Y here if you want kernel low-level debugging support | |
590 | on Rockchip based platforms. | |
591 | ||
592 | config DEBUG_RK29_UART2 | |
593 | bool "Kernel low-level debugging messages via Rockchip RK29 UART2" | |
594 | depends on ARCH_ROCKCHIP | |
4a003647 | 595 | select DEBUG_UART_8250 |
cce278d2 RK |
596 | help |
597 | Say Y here if you want kernel low-level debugging support | |
598 | on Rockchip based platforms. | |
599 | ||
600 | config DEBUG_RK3X_UART0 | |
aa9c4f74 | 601 | bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0" |
cce278d2 | 602 | depends on ARCH_ROCKCHIP |
4a003647 | 603 | select DEBUG_UART_8250 |
cce278d2 RK |
604 | help |
605 | Say Y here if you want kernel low-level debugging support | |
606 | on Rockchip based platforms. | |
607 | ||
608 | config DEBUG_RK3X_UART1 | |
aa9c4f74 | 609 | bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1" |
38bd6892 | 610 | depends on ARCH_ROCKCHIP |
4a003647 | 611 | select DEBUG_UART_8250 |
cce278d2 RK |
612 | help |
613 | Say Y here if you want kernel low-level debugging support | |
614 | on Rockchip based platforms. | |
615 | ||
616 | config DEBUG_RK3X_UART2 | |
aa9c4f74 | 617 | bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2" |
cce278d2 | 618 | depends on ARCH_ROCKCHIP |
4a003647 | 619 | select DEBUG_UART_8250 |
cce278d2 RK |
620 | help |
621 | Say Y here if you want kernel low-level debugging support | |
622 | on Rockchip based platforms. | |
623 | ||
624 | config DEBUG_RK3X_UART3 | |
aa9c4f74 | 625 | bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3" |
cce278d2 | 626 | depends on ARCH_ROCKCHIP |
4a003647 | 627 | select DEBUG_UART_8250 |
38bd6892 HS |
628 | help |
629 | Say Y here if you want kernel low-level debugging support | |
630 | on Rockchip based platforms. | |
631 | ||
efd02ee9 HS |
632 | config DEBUG_RK32_UART2 |
633 | bool "Kernel low-level debugging messages via Rockchip RK32 UART2" | |
634 | depends on ARCH_ROCKCHIP | |
635 | select DEBUG_UART_8250 | |
636 | help | |
637 | Say Y here if you want kernel low-level debugging support | |
638 | on Rockchip RK32xx based platforms. | |
639 | ||
e76f4750 RK |
640 | config DEBUG_S3C_UART0 |
641 | depends on PLAT_SAMSUNG | |
a2e40710 | 642 | select DEBUG_EXYNOS_UART if ARCH_EXYNOS |
1899de28 | 643 | select DEBUG_S3C24XX_UART if ARCH_S3C24XX |
7bab7d9e | 644 | select DEBUG_S5PV210_UART if ARCH_S5PV210 |
5cc8a016 | 645 | bool "Use Samsung S3C UART 0 for low-level debug" |
650e3f0d SB |
646 | help |
647 | Say Y here if you want the debug print routines to direct | |
e76f4750 RK |
648 | their output to UART 0. The port must have been initialised |
649 | by the boot-loader before use. | |
650e3f0d | 650 | |
e76f4750 RK |
651 | config DEBUG_S3C_UART1 |
652 | depends on PLAT_SAMSUNG | |
a2e40710 | 653 | select DEBUG_EXYNOS_UART if ARCH_EXYNOS |
1899de28 | 654 | select DEBUG_S3C24XX_UART if ARCH_S3C24XX |
7bab7d9e | 655 | select DEBUG_S5PV210_UART if ARCH_S5PV210 |
5cc8a016 | 656 | bool "Use Samsung S3C UART 1 for low-level debug" |
650e3f0d SB |
657 | help |
658 | Say Y here if you want the debug print routines to direct | |
e76f4750 RK |
659 | their output to UART 1. The port must have been initialised |
660 | by the boot-loader before use. | |
650e3f0d | 661 | |
e76f4750 RK |
662 | config DEBUG_S3C_UART2 |
663 | depends on PLAT_SAMSUNG | |
a2e40710 | 664 | select DEBUG_EXYNOS_UART if ARCH_EXYNOS |
1899de28 | 665 | select DEBUG_S3C24XX_UART if ARCH_S3C24XX |
7bab7d9e | 666 | select DEBUG_S5PV210_UART if ARCH_S5PV210 |
5cc8a016 | 667 | bool "Use Samsung S3C UART 2 for low-level debug" |
650e3f0d SB |
668 | help |
669 | Say Y here if you want the debug print routines to direct | |
e76f4750 RK |
670 | their output to UART 2. The port must have been initialised |
671 | by the boot-loader before use. | |
650e3f0d | 672 | |
5fa23dde | 673 | config DEBUG_S3C_UART3 |
7bab7d9e TF |
674 | depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210) |
675 | select DEBUG_EXYNOS_UART if ARCH_EXYNOS | |
676 | select DEBUG_S5PV210_UART if ARCH_S5PV210 | |
5cc8a016 | 677 | bool "Use Samsung S3C UART 3 for low-level debug" |
5fa23dde OJ |
678 | help |
679 | Say Y here if you want the debug print routines to direct | |
680 | their output to UART 3. The port must have been initialised | |
681 | by the boot-loader before use. | |
682 | ||
daf67dfc HS |
683 | config DEBUG_S3C2410_UART0 |
684 | depends on ARCH_S3C24XX | |
685 | select DEBUG_S3C2410_UART | |
686 | bool "Use S3C2410/S3C2412 UART 0 for low-level debug" | |
687 | help | |
688 | Say Y here if you want the debug print routines to direct | |
689 | their output to UART 0. The port must have been initialised | |
690 | by the boot-loader before use. | |
691 | ||
692 | config DEBUG_S3C2410_UART1 | |
693 | depends on ARCH_S3C24XX | |
694 | select DEBUG_S3C2410_UART | |
695 | bool "Use S3C2410/S3C2412 UART 1 for low-level debug" | |
696 | help | |
697 | Say Y here if you want the debug print routines to direct | |
698 | their output to UART 1. The port must have been initialised | |
699 | by the boot-loader before use. | |
700 | ||
701 | config DEBUG_S3C2410_UART2 | |
702 | depends on ARCH_S3C24XX | |
703 | select DEBUG_S3C2410_UART | |
704 | bool "Use S3C2410/S3C2412 UART 2 for low-level debug" | |
705 | help | |
706 | Say Y here if you want the debug print routines to direct | |
707 | their output to UART 2. The port must have been initialised | |
708 | by the boot-loader before use. | |
709 | ||
6111bf7c RH |
710 | config DEBUG_SOCFPGA_UART |
711 | depends on ARCH_SOCFPGA | |
712 | bool "Use SOCFPGA UART for low-level debug" | |
0b4cccbe | 713 | select DEBUG_UART_8250 |
6111bf7c RH |
714 | help |
715 | Say Y here if you want kernel low-level debugging support | |
716 | on SOCFPGA based platforms. | |
717 | ||
aa25115a SR |
718 | config DEBUG_SUNXI_UART0 |
719 | bool "Kernel low-level debugging messages via sunXi UART0" | |
720 | depends on ARCH_SUNXI | |
4a003647 | 721 | select DEBUG_UART_8250 |
aa25115a SR |
722 | help |
723 | Say Y here if you want kernel low-level debugging support | |
724 | on Allwinner A1X based platforms on the UART0. | |
725 | ||
cb84fa18 MR |
726 | config DEBUG_SUNXI_UART1 |
727 | bool "Kernel low-level debugging messages via sunXi UART1" | |
728 | depends on ARCH_SUNXI | |
4a003647 | 729 | select DEBUG_UART_8250 |
cb84fa18 MR |
730 | help |
731 | Say Y here if you want kernel low-level debugging support | |
732 | on Allwinner A1X based platforms on the UART1. | |
733 | ||
c4718543 CYT |
734 | config DEBUG_SUNXI_R_UART |
735 | bool "Kernel low-level debugging messages via sunXi R_UART" | |
736 | depends on MACH_SUN6I || MACH_SUN8I | |
737 | select DEBUG_UART_8250 | |
738 | help | |
739 | Say Y here if you want kernel low-level debugging support | |
740 | on Allwinner A31/A23 based platforms on the R_UART. | |
741 | ||
cce278d2 RK |
742 | config TEGRA_DEBUG_UART_AUTO_ODMDATA |
743 | bool "Kernel low-level debugging messages via Tegra UART via ODMDATA" | |
46067803 | 744 | depends on ARCH_TEGRA |
cce278d2 RK |
745 | select DEBUG_TEGRA_UART |
746 | help | |
747 | Automatically determines which UART to use for low-level | |
748 | debug based on the ODMDATA value. This value is part of | |
749 | the BCT, and is written to the boot memory device using | |
750 | nvflash, or other flashing tool. When bits 19:18 are 3, | |
751 | then bits 17:15 indicate which UART to use; 0/1/2/3/4 | |
752 | are UART A/B/C/D/E. | |
753 | ||
754 | config TEGRA_DEBUG_UARTA | |
755 | bool "Kernel low-level debugging messages via Tegra UART A" | |
756 | depends on ARCH_TEGRA | |
757 | select DEBUG_TEGRA_UART | |
758 | help | |
759 | Say Y here if you want kernel low-level debugging support | |
760 | on Tegra based platforms. | |
761 | ||
762 | config TEGRA_DEBUG_UARTB | |
763 | bool "Kernel low-level debugging messages via Tegra UART B" | |
764 | depends on ARCH_TEGRA | |
765 | select DEBUG_TEGRA_UART | |
766 | help | |
767 | Say Y here if you want kernel low-level debugging support | |
768 | on Tegra based platforms. | |
769 | ||
770 | config TEGRA_DEBUG_UARTC | |
771 | bool "Kernel low-level debugging messages via Tegra UART C" | |
772 | depends on ARCH_TEGRA | |
773 | select DEBUG_TEGRA_UART | |
774 | help | |
775 | Say Y here if you want kernel low-level debugging support | |
776 | on Tegra based platforms. | |
777 | ||
778 | config TEGRA_DEBUG_UARTD | |
779 | bool "Kernel low-level debugging messages via Tegra UART D" | |
780 | depends on ARCH_TEGRA | |
781 | select DEBUG_TEGRA_UART | |
782 | help | |
783 | Say Y here if you want kernel low-level debugging support | |
784 | on Tegra based platforms. | |
785 | ||
786 | config TEGRA_DEBUG_UARTE | |
787 | bool "Kernel low-level debugging messages via Tegra UART E" | |
788 | depends on ARCH_TEGRA | |
789 | select DEBUG_TEGRA_UART | |
46067803 SW |
790 | help |
791 | Say Y here if you want kernel low-level debugging support | |
792 | on Tegra based platforms. | |
793 | ||
7f46a107 BS |
794 | config DEBUG_SIRFPRIMA2_UART1 |
795 | bool "Kernel low-level debugging messages via SiRFprimaII UART1" | |
796 | depends on ARCH_PRIMA2 | |
797 | help | |
798 | Say Y here if you want the debug print routines to direct | |
799 | their output to the uart1 port on SiRFprimaII devices. | |
800 | ||
801 | config DEBUG_SIRFMARCO_UART1 | |
802 | bool "Kernel low-level debugging messages via SiRFmarco UART1" | |
803 | depends on ARCH_MARCO | |
804 | help | |
805 | Say Y here if you want the debug print routines to direct | |
806 | their output to the uart1 port on SiRFmarco devices. | |
807 | ||
cce278d2 RK |
808 | config STIH41X_DEBUG_ASC2 |
809 | bool "Use StiH415/416 ASC2 UART for low-level debug" | |
810 | depends on ARCH_STI | |
811 | select DEBUG_STI_UART | |
812 | help | |
813 | Say Y here if you want kernel low-level debugging support | |
814 | on STiH415/416 based platforms like b2000, which has | |
815 | default UART wired up to ASC2. | |
816 | ||
817 | If unsure, say N. | |
818 | ||
819 | config STIH41X_DEBUG_SBC_ASC1 | |
820 | bool "Use StiH415/416 SBC ASC1 UART for low-level debug" | |
5562b800 | 821 | depends on ARCH_STI |
cce278d2 | 822 | select DEBUG_STI_UART |
5562b800 AB |
823 | help |
824 | Say Y here if you want kernel low-level debugging support | |
cce278d2 RK |
825 | on STiH415/416 based platforms like b2020. which has |
826 | default UART wired up to SBC ASC1. | |
5562b800 AB |
827 | |
828 | If unsure, say N. | |
829 | ||
dd324da7 LW |
830 | config DEBUG_U300_UART |
831 | bool "Kernel low-level debugging messages via U300 UART0" | |
832 | depends on ARCH_U300 | |
5c972af4 | 833 | select DEBUG_UART_PL01X |
dd324da7 LW |
834 | help |
835 | Say Y here if you want the debug print routines to direct | |
836 | their output to the uart port on U300 devices. | |
837 | ||
f87b95dd LW |
838 | config DEBUG_UX500_UART |
839 | depends on ARCH_U8500 | |
840 | bool "Use Ux500 UART for low-level debug" | |
841 | help | |
842 | Say Y here if you want kernel low-level debugging support | |
843 | on Ux500 based platforms. | |
844 | ||
1b820eaf PM |
845 | config DEBUG_VEXPRESS_UART0_DETECT |
846 | bool "Autodetect UART0 on Versatile Express Cortex-A core tiles" | |
847 | depends on ARCH_VEXPRESS && CPU_CP15_MMU | |
848 | help | |
849 | This option enables a simple heuristic which tries to determine | |
850 | the motherboard's memory map variant (original or RS1) and then | |
851 | choose the relevant UART0 base address. | |
852 | ||
853 | Note that this will only work with standard A-class core tiles, | |
854 | and may fail with non-standard SMM or custom software models. | |
855 | ||
856 | config DEBUG_VEXPRESS_UART0_CA9 | |
857 | bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)" | |
858 | depends on ARCH_VEXPRESS | |
5c972af4 | 859 | select DEBUG_UART_PL01X |
1b820eaf PM |
860 | help |
861 | This option selects UART0 at 0x10009000. Except for custom models, | |
862 | this applies only to the V2P-CA9 tile. | |
863 | ||
864 | config DEBUG_VEXPRESS_UART0_RS1 | |
865 | bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)" | |
866 | depends on ARCH_VEXPRESS | |
5c972af4 | 867 | select DEBUG_UART_PL01X |
1b820eaf PM |
868 | help |
869 | This option selects UART0 at 0x1c090000. This applies to most | |
870 | of the tiles using the RS1 memory map, including all new A-class | |
871 | core tiles, FPGA-based SMMs and software models. | |
872 | ||
ed18bdc8 JA |
873 | config DEBUG_VEXPRESS_UART0_CRX |
874 | bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)" | |
875 | depends on ARCH_VEXPRESS && !MMU | |
5c972af4 | 876 | select DEBUG_UART_PL01X |
ed18bdc8 JA |
877 | help |
878 | This option selects UART0 at 0xb0090000. This is appropriate for | |
879 | Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7 | |
880 | ||
b61a2722 TP |
881 | config DEBUG_VT8500_UART0 |
882 | bool "Use UART0 on VIA/Wondermedia SoCs" | |
883 | depends on ARCH_VT8500 | |
884 | help | |
885 | This option selects UART0 on VIA/Wondermedia System-on-a-chip | |
886 | devices, including VT8500, WM8505, WM8650 and WM8850. | |
887 | ||
e76f4750 RK |
888 | config DEBUG_LL_UART_NONE |
889 | bool "No low-level debugging UART" | |
387798b3 | 890 | depends on !ARCH_MULTIPLATFORM |
a3d3ef9d | 891 | help |
e76f4750 | 892 | Say Y here if your platform doesn't provide a UART option |
730cc26f | 893 | above. This relies on your platform choosing the right UART |
e76f4750 RK |
894 | definition internally in order for low-level debugging to |
895 | work. | |
a3d3ef9d | 896 | |
e76f4750 RK |
897 | config DEBUG_ICEDCC |
898 | bool "Kernel low-level debugging via EmbeddedICE DCC channel" | |
a3d3ef9d SB |
899 | help |
900 | Say Y here if you want the debug print routines to direct | |
e76f4750 RK |
901 | their output to the EmbeddedICE macrocell's DCC channel using |
902 | co-processor 14. This is known to work on the ARM9 style ICE | |
903 | channel and on the XScale with the PEEDI. | |
904 | ||
905 | Note that the system will appear to hang during boot if there | |
906 | is nothing connected to read from the DCC. | |
a3d3ef9d | 907 | |
b0df8986 | 908 | config DEBUG_SEMIHOSTING |
62194bda | 909 | bool "Kernel low-level debug output via semihosting I/O" |
650e3f0d | 910 | help |
b0df8986 RK |
911 | Semihosting enables code running on an ARM target to use |
912 | the I/O facilities on a host debugger/emulator through a | |
62194bda | 913 | simple SVC call. The host debugger or emulator must have |
b0df8986 RK |
914 | semihosting enabled for the special svc call to be trapped |
915 | otherwise the kernel will crash. | |
650e3f0d | 916 | |
62194bda | 917 | This is known to work with OpenOCD, as well as |
b0df8986 RK |
918 | ARM's Fast Models, or any other controlling environment |
919 | that implements semihosting. | |
a3d3ef9d | 920 | |
b0df8986 RK |
921 | For more details about semihosting, please see |
922 | chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd. | |
a3d3ef9d | 923 | |
f8f1279c RK |
924 | config DEBUG_LL_UART_8250 |
925 | bool "Kernel low-level debugging via 8250 UART" | |
926 | help | |
927 | Say Y here if you wish the debug print routes to direct | |
928 | their output to an 8250 UART. You can use this option | |
929 | to provide the parameters for the 8250 UART rather than | |
930 | selecting one of the platform specific options above if | |
931 | you know the parameters for the port. | |
932 | ||
933 | This option is preferred over the platform specific | |
934 | options; the platform specific options are deprecated | |
935 | and will be soon removed. | |
936 | ||
494e492d UKK |
937 | config DEBUG_LL_UART_EFM32 |
938 | bool "Kernel low-level debugging via efm32 UART" | |
939 | depends on ARCH_EFM32 | |
940 | help | |
941 | Say Y here if you want the debug print routines to direct | |
942 | their output to an UART or USART port on efm32 based | |
943 | machines. Use the following addresses for DEBUG_UART_PHYS: | |
944 | ||
945 | 0x4000c000 | USART0 | |
946 | 0x4000c400 | USART1 | |
947 | 0x4000c800 | USART2 | |
948 | 0x4000e000 | UART0 | |
949 | 0x4000e400 | UART1 | |
950 | ||
f8f1279c RK |
951 | config DEBUG_LL_UART_PL01X |
952 | bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART" | |
953 | help | |
954 | Say Y here if you wish the debug print routes to direct | |
955 | their output to a PL01x Primecell UART. You can use | |
956 | this option to provide the parameters for the UART | |
957 | rather than selecting one of the platform specific | |
958 | options above if you know the parameters for the port. | |
959 | ||
960 | This option is preferred over the platform specific | |
961 | options; the platform specific options are deprecated | |
962 | and will be soon removed. | |
963 | ||
17916b28 WD |
964 | endchoice |
965 | ||
a2e40710 AB |
966 | config DEBUG_EXYNOS_UART |
967 | bool | |
968 | ||
daf67dfc HS |
969 | config DEBUG_S3C2410_UART |
970 | bool | |
1899de28 HS |
971 | select DEBUG_S3C24XX_UART |
972 | ||
973 | config DEBUG_S3C24XX_UART | |
974 | bool | |
daf67dfc | 975 | |
7bab7d9e TF |
976 | config DEBUG_S5PV210_UART |
977 | bool | |
978 | ||
cce278d2 RK |
979 | config DEBUG_OMAP2PLUS_UART |
980 | bool | |
981 | depends on ARCH_OMAP2PLUS | |
982 | ||
f8c95fe6 SG |
983 | config DEBUG_IMX_UART_PORT |
984 | int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \ | |
985 | DEBUG_IMX25_UART || \ | |
986 | DEBUG_IMX21_IMX27_UART || \ | |
987 | DEBUG_IMX31_UART || \ | |
988 | DEBUG_IMX35_UART || \ | |
ad364a70 | 989 | DEBUG_IMX50_UART || \ |
f8c95fe6 | 990 | DEBUG_IMX51_UART || \ |
0c52db7e | 991 | DEBUG_IMX53_UART || \ |
34e8a16b | 992 | DEBUG_IMX6Q_UART || \ |
74368e81 SG |
993 | DEBUG_IMX6SL_UART || \ |
994 | DEBUG_IMX6SX_UART | |
49c9e60e | 995 | default 1 |
287939a3 | 996 | depends on ARCH_MXC |
49c9e60e SG |
997 | help |
998 | Choose UART port on which kernel low-level debug messages | |
999 | should be output. | |
1000 | ||
cfdb7d56 SA |
1001 | config DEBUG_VF_UART_PORT |
1002 | int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART | |
1003 | default 1 | |
1004 | range 0 3 | |
1005 | depends on SOC_VF610 | |
1006 | help | |
1007 | Choose UART port on which kernel low-level debug messages | |
1008 | should be output. | |
1009 | ||
cce278d2 RK |
1010 | config DEBUG_TEGRA_UART |
1011 | bool | |
1012 | depends on ARCH_TEGRA | |
5026aecf | 1013 | |
cce278d2 RK |
1014 | config DEBUG_STI_UART |
1015 | bool | |
1016 | depends on ARCH_STI | |
5026aecf | 1017 | |
91a9fec0 RH |
1018 | config DEBUG_LL_INCLUDE |
1019 | string | |
f8f1279c | 1020 | default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250 |
dd99eef5 | 1021 | default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2 |
f8f1279c | 1022 | default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X |
a2e40710 | 1023 | default "debug/exynos.S" if DEBUG_EXYNOS_UART |
494e492d | 1024 | default "debug/efm32.S" if DEBUG_LL_UART_EFM32 |
91a9fec0 | 1025 | default "debug/icedcc.S" if DEBUG_ICEDCC |
6dde5ac5 SG |
1026 | default "debug/imx.S" if DEBUG_IMX1_UART || \ |
1027 | DEBUG_IMX25_UART || \ | |
1028 | DEBUG_IMX21_IMX27_UART || \ | |
4ad625d4 SG |
1029 | DEBUG_IMX31_UART || \ |
1030 | DEBUG_IMX35_UART || \ | |
ad364a70 | 1031 | DEBUG_IMX50_UART || \ |
6dde5ac5 | 1032 | DEBUG_IMX51_UART || \ |
7356420c | 1033 | DEBUG_IMX53_UART ||\ |
34e8a16b | 1034 | DEBUG_IMX6Q_UART || \ |
74368e81 SG |
1035 | DEBUG_IMX6SL_UART || \ |
1036 | DEBUG_IMX6SX_UART | |
7098cff2 | 1037 | default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM |
808b7e07 | 1038 | default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART |
2cd62bd4 | 1039 | default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART |
7bab7d9e | 1040 | default "debug/s5pv210.S" if DEBUG_S5PV210_UART |
67bdb287 | 1041 | default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1 |
5026aecf | 1042 | default "debug/sti.S" if DEBUG_STI_UART |
150a8dcf LT |
1043 | default "debug/tegra.S" if DEBUG_TEGRA_UART |
1044 | default "debug/ux500.S" if DEBUG_UX500_UART | |
4e218b99 | 1045 | default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT |
c7c3eac6 | 1046 | default "debug/vf.S" if DEBUG_VF_UART |
b61a2722 | 1047 | default "debug/vt8500.S" if DEBUG_VT8500_UART0 |
385f02b1 | 1048 | default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1 |
91a9fec0 RH |
1049 | default "mach/debug-macro.S" |
1050 | ||
f8f1279c | 1051 | # Compatibility options for PL01x |
5c972af4 RK |
1052 | config DEBUG_UART_PL01X |
1053 | def_bool ARCH_EP93XX || \ | |
1054 | ARCH_INTEGRATOR || \ | |
0dc0e475 RK |
1055 | ARCH_SPEAR3XX || \ |
1056 | ARCH_SPEAR6XX || \ | |
1057 | ARCH_SPEAR13XX || \ | |
5c972af4 RK |
1058 | ARCH_VERSATILE |
1059 | ||
f8f1279c | 1060 | # Compatibility options for 8250 |
7610b607 | 1061 | config DEBUG_UART_8250 |
4a003647 RK |
1062 | def_bool ARCH_DOVE || ARCH_EBSA110 || \ |
1063 | (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \ | |
1064 | ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \ | |
ba364fc7 | 1065 | ARCH_IOP33X || ARCH_IXP4XX || \ |
4a003647 RK |
1066 | ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC |
1067 | ||
c3faa9b7 RK |
1068 | config DEBUG_UART_PHYS |
1069 | hex "Physical base address of debug UART" | |
97bd1a48 | 1070 | default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0 |
c3faa9b7 RK |
1071 | default 0x01c28000 if DEBUG_SUNXI_UART0 |
1072 | default 0x01c28400 if DEBUG_SUNXI_UART1 | |
97bd1a48 RK |
1073 | default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1 |
1074 | default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2 | |
c4718543 | 1075 | default 0x01f02800 if DEBUG_SUNXI_R_UART |
f2acf003 RK |
1076 | default 0x02530c00 if DEBUG_KEYSTONE_UART0 |
1077 | default 0x02531000 if DEBUG_KEYSTONE_UART1 | |
c3faa9b7 | 1078 | default 0x03010fe0 if ARCH_RPC |
5c972af4 RK |
1079 | default 0x10009000 if DEBUG_REALVIEW_STD_PORT || DEBUG_CNS3XXX || \ |
1080 | DEBUG_VEXPRESS_UART0_CA9 | |
1081 | default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT | |
c3faa9b7 RK |
1082 | default 0x10124000 if DEBUG_RK3X_UART0 |
1083 | default 0x10126000 if DEBUG_RK3X_UART1 | |
5c972af4 RK |
1084 | default 0x101f1000 if ARCH_VERSATILE |
1085 | default 0x101fb000 if DEBUG_NOMADIK_UART | |
1086 | default 0x16000000 if ARCH_INTEGRATOR | |
06580275 | 1087 | default 0x18000300 if DEBUG_BCM_5301X |
5c972af4 | 1088 | default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1 |
c3faa9b7 RK |
1089 | default 0x20060000 if DEBUG_RK29_UART0 |
1090 | default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2 | |
1091 | default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3 | |
5c972af4 | 1092 | default 0x20201000 if DEBUG_BCM2835 |
753d1243 | 1093 | default 0x3e000000 if DEBUG_BCM_KONA_UART |
494e492d | 1094 | default 0x4000e400 if DEBUG_LL_UART_EFM32 |
c3faa9b7 RK |
1095 | default 0x40090000 if ARCH_LPC32XX |
1096 | default 0x40100000 if DEBUG_PXA_UART1 | |
1097 | default 0x42000000 if ARCH_GEMINI | |
1899de28 HS |
1098 | default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \ |
1099 | DEBUG_S3C2410_UART0) | |
1100 | default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \ | |
1101 | DEBUG_S3C2410_UART1) | |
1102 | default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \ | |
1103 | DEBUG_S3C2410_UART2) | |
c3faa9b7 | 1104 | default 0x7c0003f8 if FOOTBRIDGE |
5c972af4 RK |
1105 | default 0x80070000 if DEBUG_IMX23_UART |
1106 | default 0x80074000 if DEBUG_IMX28_UART | |
c39e1ef7 | 1107 | default 0x80230000 if DEBUG_PICOXCELL_UART |
5c972af4 RK |
1108 | default 0x808c0000 if ARCH_EP93XX |
1109 | default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART | |
7098cff2 | 1110 | default 0xa9a00000 if DEBUG_MSM_UART |
5c972af4 RK |
1111 | default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX |
1112 | default 0xc0013000 if DEBUG_U300_UART | |
c3faa9b7 RK |
1113 | default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN |
1114 | default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN | |
0dc0e475 | 1115 | default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX |
c3faa9b7 RK |
1116 | default 0xd0012000 if DEBUG_MVEBU_UART |
1117 | default 0xd4017000 if DEBUG_MMP_UART2 | |
1118 | default 0xd4018000 if DEBUG_MMP_UART3 | |
0dc0e475 | 1119 | default 0xe0000000 if ARCH_SPEAR13XX |
c9a1df48 | 1120 | default 0xe4007000 if DEBUG_HIP04_UART |
c3faa9b7 RK |
1121 | default 0xf0000be0 if ARCH_EBSA110 |
1122 | default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE | |
ba364fc7 | 1123 | default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \ |
c3faa9b7 | 1124 | ARCH_ORION5X |
caad0b41 | 1125 | default 0xf7fc9000 if DEBUG_BERLIN_UART |
12aae309 | 1126 | default 0xf8b00000 if DEBUG_HIX5HD2_UART |
7098cff2 | 1127 | default 0xf991e000 if DEBUG_QCOM_UARTDM |
8d258beb | 1128 | default 0xfcb00000 if DEBUG_HI3620_UART |
c3faa9b7 | 1129 | default 0xfe800000 if ARCH_IOP32X |
efd02ee9 | 1130 | default 0xff690000 if DEBUG_RK32_UART2 |
0b4cccbe | 1131 | default 0xffc02000 if DEBUG_SOCFPGA_UART |
c3faa9b7 | 1132 | default 0xffd82340 if ARCH_IOP13XX |
5c972af4 | 1133 | default 0xfff36000 if DEBUG_HIGHBANK_UART |
c3faa9b7 | 1134 | default 0xfffff700 if ARCH_IOP33X |
f8f1279c | 1135 | depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ |
494e492d | 1136 | DEBUG_LL_UART_EFM32 || \ |
7098cff2 | 1137 | DEBUG_UART_8250 || DEBUG_UART_PL01X || \ |
fe388fac | 1138 | DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART |
c3faa9b7 RK |
1139 | |
1140 | config DEBUG_UART_VIRT | |
1141 | hex "Virtual base address of debug UART" | |
1142 | default 0xe0010fe0 if ARCH_RPC | |
7098cff2 | 1143 | default 0xe1000000 if DEBUG_MSM_UART |
c3faa9b7 | 1144 | default 0xf0000be0 if ARCH_EBSA110 |
5c972af4 RK |
1145 | default 0xf0009000 if DEBUG_CNS3XXX |
1146 | default 0xf01fb000 if DEBUG_NOMADIK_UART | |
1147 | default 0xf0201000 if DEBUG_BCM2835 | |
06580275 | 1148 | default 0xf1000300 if DEBUG_BCM_5301X |
5c972af4 RK |
1149 | default 0xf11f1000 if ARCH_VERSATILE |
1150 | default 0xf1600000 if ARCH_INTEGRATOR | |
c3faa9b7 RK |
1151 | default 0xf1c28000 if DEBUG_SUNXI_UART0 |
1152 | default 0xf1c28400 if DEBUG_SUNXI_UART1 | |
c4718543 | 1153 | default 0xf1f02800 if DEBUG_SUNXI_R_UART |
c3faa9b7 RK |
1154 | default 0xf2100000 if DEBUG_PXA_UART1 |
1155 | default 0xf4090000 if ARCH_LPC32XX | |
1156 | default 0xf4200000 if ARCH_GEMINI | |
1899de28 HS |
1157 | default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \ |
1158 | DEBUG_S3C2410_UART0) | |
1159 | default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \ | |
1160 | DEBUG_S3C2410_UART1) | |
1161 | default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \ | |
1162 | DEBUG_S3C2410_UART2) | |
caad0b41 | 1163 | default 0xf7fc9000 if DEBUG_BERLIN_UART |
c9a1df48 | 1164 | default 0xf8007000 if DEBUG_HIP04_UART |
5c972af4 RK |
1165 | default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9 |
1166 | default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1 | |
7098cff2 | 1167 | default 0xfa71e000 if DEBUG_QCOM_UARTDM |
5c972af4 RK |
1168 | default 0xfb009000 if DEBUG_REALVIEW_STD_PORT |
1169 | default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT | |
0dc0e475 RK |
1170 | default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX |
1171 | default 0xfd000000 if ARCH_SPEAR13XX | |
c3faa9b7 RK |
1172 | default 0xfd012000 if ARCH_MV78XX0 |
1173 | default 0xfde12000 if ARCH_DOVE | |
1174 | default 0xfe012000 if ARCH_ORION5X | |
1175 | default 0xfe017000 if DEBUG_MMP_UART2 | |
1176 | default 0xfe018000 if DEBUG_MMP_UART3 | |
5c972af4 | 1177 | default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART |
0b4cccbe | 1178 | default 0xfe230000 if DEBUG_PICOXCELL_UART |
753d1243 | 1179 | default 0xfe300000 if DEBUG_BCM_KONA_UART |
c3faa9b7 | 1180 | default 0xfe800000 if ARCH_IOP32X |
12aae309 | 1181 | default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART |
c3faa9b7 RK |
1182 | default 0xfeb24000 if DEBUG_RK3X_UART0 |
1183 | default 0xfeb26000 if DEBUG_RK3X_UART1 | |
f2acf003 RK |
1184 | default 0xfeb30c00 if DEBUG_KEYSTONE_UART0 |
1185 | default 0xfeb31000 if DEBUG_KEYSTONE_UART1 | |
0b4cccbe | 1186 | default 0xfec02000 if DEBUG_SOCFPGA_UART |
c39e1ef7 | 1187 | default 0xfec12000 if DEBUG_MVEBU_UART || DEBUG_MVEBU_UART_ALTERNATE |
97bd1a48 | 1188 | default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0 |
efd02ee9 | 1189 | default 0xfec90000 if DEBUG_RK32_UART2 |
97bd1a48 RK |
1190 | default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1 |
1191 | default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2 | |
c39e1ef7 AS |
1192 | default 0xfed60000 if DEBUG_RK29_UART0 |
1193 | default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2 | |
1194 | default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3 | |
5c972af4 | 1195 | default 0xfedc0000 if ARCH_EP93XX |
c3faa9b7 | 1196 | default 0xfee003f8 if FOOTBRIDGE |
5c972af4 | 1197 | default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART |
c3faa9b7 RK |
1198 | default 0xfee82340 if ARCH_IOP13XX |
1199 | default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN | |
1200 | default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN | |
c39e1ef7 | 1201 | default 0xfef36000 if DEBUG_HIGHBANK_UART |
c3faa9b7 | 1202 | default 0xfefff700 if ARCH_IOP33X |
5c972af4 RK |
1203 | default 0xff003000 if DEBUG_U300_UART |
1204 | default DEBUG_UART_PHYS if !MMU | |
f8f1279c | 1205 | depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ |
7098cff2 | 1206 | DEBUG_UART_8250 || DEBUG_UART_PL01X || \ |
fe388fac | 1207 | DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART |
c3faa9b7 | 1208 | |
4a003647 RK |
1209 | config DEBUG_UART_8250_SHIFT |
1210 | int "Register offset shift for the 8250 debug UART" | |
f8f1279c | 1211 | depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 |
4a003647 RK |
1212 | default 0 if FOOTBRIDGE || ARCH_IOP32X |
1213 | default 2 | |
7610b607 | 1214 | |
0b4cccbe RK |
1215 | config DEBUG_UART_8250_WORD |
1216 | bool "Use 32-bit accesses for 8250 UART" | |
f8f1279c | 1217 | depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 |
0b4cccbe | 1218 | depends on DEBUG_UART_8250_SHIFT >= 2 |
f2acf003 | 1219 | default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \ |
97bd1a48 RK |
1220 | ARCH_KEYSTONE || \ |
1221 | DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \ | |
9d6eccb9 | 1222 | DEBUG_DAVINCI_DA8XX_UART2 || \ |
efd02ee9 | 1223 | DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 |
0b4cccbe | 1224 | |
7610b607 RK |
1225 | config DEBUG_UART_8250_FLOW_CONTROL |
1226 | bool "Enable flow control for 8250 UART" | |
f8f1279c | 1227 | depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 |
7610b607 RK |
1228 | default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC |
1229 | ||
3b4af9bc SG |
1230 | config DEBUG_UNCOMPRESS |
1231 | bool | |
90266754 | 1232 | depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG |
b6992fa9 | 1233 | default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \ |
ae3c99a2 | 1234 | (!DEBUG_TEGRA_UART || !ZBOOT_ROM) |
b6992fa9 RK |
1235 | help |
1236 | This option influences the normal decompressor output for | |
1237 | multiplatform kernels. Normally, multiplatform kernels disable | |
1238 | decompressor output because it is not possible to know where to | |
1239 | send the decompressor output. | |
1240 | ||
1241 | When this option is set, the selected DEBUG_LL output method | |
1242 | will be re-used for normal decompressor output on multiplatform | |
1243 | kernels. | |
1244 | ||
3b4af9bc | 1245 | |
615967b0 SG |
1246 | config UNCOMPRESS_INCLUDE |
1247 | string | |
ffd80ecc | 1248 | default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \ |
2bf73dd6 | 1249 | PLAT_SAMSUNG || ARCH_EFM32 |
615967b0 SG |
1250 | default "mach/uncompress.h" |
1251 | ||
93fd03a8 CM |
1252 | config EARLY_PRINTK |
1253 | bool "Early printk" | |
1254 | depends on DEBUG_LL | |
1255 | help | |
1256 | Say Y here if you want to have an early console using the | |
1257 | kernel low-level debugging functions. Add earlyprintk to your | |
1258 | kernel parameters to enable this console. | |
1259 | ||
c5d6c770 AS |
1260 | config OC_ETM |
1261 | bool "On-chip ETM and ETB" | |
53eebb0d | 1262 | depends on ARM_AMBA |
c5d6c770 AS |
1263 | help |
1264 | Enables the on-chip embedded trace macrocell and embedded trace | |
1265 | buffer driver that will allow you to collect traces of the | |
1266 | kernel code. | |
1267 | ||
4189bc71 JM |
1268 | config ARM_KPROBES_TEST |
1269 | tristate "Kprobes test module" | |
1270 | depends on KPROBES && MODULES | |
1271 | help | |
1272 | Perform tests of kprobes API and instruction set simulation. | |
1273 | ||
575320d6 WD |
1274 | config PID_IN_CONTEXTIDR |
1275 | bool "Write the current PID to the CONTEXTIDR register" | |
1276 | depends on CPU_COPY_V6 | |
1277 | help | |
1278 | Enabling this option causes the kernel to write the current PID to | |
1279 | the PROCID field of the CONTEXTIDR register, at the expense of some | |
1280 | additional instructions during context switch. Say Y here only if you | |
1281 | are planning to use hardware trace tools with this kernel. | |
1282 | ||
dca9aa92 LA |
1283 | config DEBUG_SET_MODULE_RONX |
1284 | bool "Set loadable kernel module data as NX and text as RO" | |
1285 | depends on MODULES | |
1286 | ---help--- | |
1287 | This option helps catch unintended modifications to loadable | |
1288 | kernel module's text and read-only data. It also prevents execution | |
1289 | of module data. Such protection may interfere with run-time code | |
1290 | patching and dynamic kernel tracing - and they might also protect | |
1291 | against certain classes of kernel exploits. | |
1292 | If in doubt, say "N". | |
1293 | ||
1da177e4 | 1294 | endmenu |