Kconfig.debug 21 KB

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  1. menu "Kernel hacking"
  2. source "lib/Kconfig.debug"
  3. config STRICT_DEVMEM
  4. bool "Filter access to /dev/mem"
  5. depends on MMU
  6. ---help---
  7. If this option is disabled, you allow userspace (root) access to all
  8. of memory, including kernel and userspace memory. Accidental
  9. access to this is obviously disastrous, but specific access can
  10. be used by people debugging the kernel.
  11. If this option is switched on, the /dev/mem file only allows
  12. userspace access to memory mapped peripherals.
  13. If in doubt, say Y.
  14. # RMK wants arm kernels compiled with frame pointers or stack unwinding.
  15. # If you know what you are doing and are willing to live without stack
  16. # traces, you can get a slightly smaller kernel by setting this option to
  17. # n, but then RMK will have to kill you ;).
  18. config FRAME_POINTER
  19. bool
  20. depends on !THUMB2_KERNEL
  21. default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
  22. help
  23. If you say N here, the resulting kernel will be slightly smaller and
  24. faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
  25. when a problem occurs with the kernel, the information that is
  26. reported is severely limited.
  27. config ARM_UNWIND
  28. bool "Enable stack unwinding support (EXPERIMENTAL)"
  29. depends on AEABI
  30. default y
  31. help
  32. This option enables stack unwinding support in the kernel
  33. using the information automatically generated by the
  34. compiler. The resulting kernel image is slightly bigger but
  35. the performance is not affected. Currently, this feature
  36. only works with EABI compilers. If unsure say Y.
  37. config OLD_MCOUNT
  38. bool
  39. depends on FUNCTION_TRACER && FRAME_POINTER
  40. default y
  41. config DEBUG_USER
  42. bool "Verbose user fault messages"
  43. help
  44. When a user program crashes due to an exception, the kernel can
  45. print a brief message explaining what the problem was. This is
  46. sometimes helpful for debugging but serves no purpose on a
  47. production system. Most people should say N here.
  48. In addition, you need to pass user_debug=N on the kernel command
  49. line to enable this feature. N consists of the sum of:
  50. 1 - undefined instruction events
  51. 2 - system calls
  52. 4 - invalid data aborts
  53. 8 - SIGSEGV faults
  54. 16 - SIGBUS faults
  55. # These options are only for real kernel hackers who want to get their hands dirty.
  56. config DEBUG_LL
  57. bool "Kernel low-level debugging functions (read help!)"
  58. depends on DEBUG_KERNEL
  59. help
  60. Say Y here to include definitions of printascii, printch, printhex
  61. in the kernel. This is helpful if you are debugging code that
  62. executes before the console is initialized.
  63. Note that selecting this option will limit the kernel to a single
  64. UART definition, as specified below. Attempting to boot the kernel
  65. image on a different platform *will not work*, so this option should
  66. not be enabled for kernels that are intended to be portable.
  67. choice
  68. prompt "Kernel low-level debugging port"
  69. depends on DEBUG_LL
  70. config AT91_DEBUG_LL_DBGU0
  71. bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10 and 9rl"
  72. depends on HAVE_AT91_DBGU0
  73. config AT91_DEBUG_LL_DBGU1
  74. bool "Kernel low-level debugging on 9263 and 9g45"
  75. depends on HAVE_AT91_DBGU1
  76. config DEBUG_BCM2835
  77. bool "Kernel low-level debugging on BCM2835 PL011 UART"
  78. depends on ARCH_BCM2835
  79. config DEBUG_CLPS711X_UART1
  80. bool "Kernel low-level debugging messages via UART1"
  81. depends on ARCH_CLPS711X
  82. help
  83. Say Y here if you want the debug print routines to direct
  84. their output to the first serial port on these devices.
  85. config DEBUG_CLPS711X_UART2
  86. bool "Kernel low-level debugging messages via UART2"
  87. depends on ARCH_CLPS711X
  88. help
  89. Say Y here if you want the debug print routines to direct
  90. their output to the second serial port on these devices.
  91. config DEBUG_CNS3XXX
  92. bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
  93. depends on ARCH_CNS3XXX
  94. help
  95. Say Y here if you want the debug print routines to direct
  96. their output to the CNS3xxx UART0.
  97. config DEBUG_DAVINCI_DA8XX_UART1
  98. bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
  99. depends on ARCH_DAVINCI_DA8XX
  100. help
  101. Say Y here if you want the debug print routines to direct
  102. their output to UART1 serial port on DaVinci DA8XX devices.
  103. config DEBUG_DAVINCI_DA8XX_UART2
  104. bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
  105. depends on ARCH_DAVINCI_DA8XX
  106. help
  107. Say Y here if you want the debug print routines to direct
  108. their output to UART2 serial port on DaVinci DA8XX devices.
  109. config DEBUG_DAVINCI_DMx_UART0
  110. bool "Kernel low-level debugging on DaVinci DMx using UART0"
  111. depends on ARCH_DAVINCI_DMx
  112. help
  113. Say Y here if you want the debug print routines to direct
  114. their output to UART0 serial port on DaVinci DMx devices.
  115. config DEBUG_DAVINCI_TNETV107X_UART1
  116. bool "Kernel low-level debugging on DaVinci TNETV107x using UART1"
  117. depends on ARCH_DAVINCI_TNETV107X
  118. help
  119. Say Y here if you want the debug print routines to direct
  120. their output to UART1 serial port on DaVinci TNETV107X
  121. devices.
  122. config DEBUG_ZYNQ_UART0
  123. bool "Kernel low-level debugging on Xilinx Zynq using UART0"
  124. depends on ARCH_ZYNQ
  125. help
  126. Say Y here if you want the debug print routines to direct
  127. their output to UART0 on the Zynq platform.
  128. config DEBUG_ZYNQ_UART1
  129. bool "Kernel low-level debugging on Xilinx Zynq using UART1"
  130. depends on ARCH_ZYNQ
  131. help
  132. Say Y here if you want the debug print routines to direct
  133. their output to UART1 on the Zynq platform.
  134. If you have a ZC702 board and want early boot messages to
  135. appear on the USB serial adaptor, select this option.
  136. config DEBUG_DC21285_PORT
  137. bool "Kernel low-level debugging messages via footbridge serial port"
  138. depends on FOOTBRIDGE
  139. help
  140. Say Y here if you want the debug print routines to direct
  141. their output to the serial port in the DC21285 (Footbridge).
  142. config DEBUG_FOOTBRIDGE_COM1
  143. bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
  144. depends on FOOTBRIDGE
  145. help
  146. Say Y here if you want the debug print routines to direct
  147. their output to the 8250 at PCI COM1.
  148. config DEBUG_HIGHBANK_UART
  149. bool "Kernel low-level debugging messages via Highbank UART"
  150. depends on ARCH_HIGHBANK
  151. help
  152. Say Y here if you want the debug print routines to direct
  153. their output to the UART on Highbank based devices.
  154. config DEBUG_IMX1_UART
  155. bool "i.MX1 Debug UART"
  156. depends on SOC_IMX1
  157. help
  158. Say Y here if you want kernel low-level debugging support
  159. on i.MX1.
  160. config DEBUG_IMX23_UART
  161. bool "i.MX23 Debug UART"
  162. depends on SOC_IMX23
  163. help
  164. Say Y here if you want kernel low-level debugging support
  165. on i.MX23.
  166. config DEBUG_IMX25_UART
  167. bool "i.MX25 Debug UART"
  168. depends on SOC_IMX25
  169. help
  170. Say Y here if you want kernel low-level debugging support
  171. on i.MX25.
  172. config DEBUG_IMX21_IMX27_UART
  173. bool "i.MX21 and i.MX27 Debug UART"
  174. depends on SOC_IMX21 || SOC_IMX27
  175. help
  176. Say Y here if you want kernel low-level debugging support
  177. on i.MX21 or i.MX27.
  178. config DEBUG_IMX28_UART
  179. bool "i.MX28 Debug UART"
  180. depends on SOC_IMX28
  181. help
  182. Say Y here if you want kernel low-level debugging support
  183. on i.MX28.
  184. config DEBUG_IMX31_UART
  185. bool "i.MX31 Debug UART"
  186. depends on SOC_IMX31
  187. help
  188. Say Y here if you want kernel low-level debugging support
  189. on i.MX31.
  190. config DEBUG_IMX35_UART
  191. bool "i.MX35 Debug UART"
  192. depends on SOC_IMX35
  193. help
  194. Say Y here if you want kernel low-level debugging support
  195. on i.MX35.
  196. config DEBUG_IMX51_UART
  197. bool "i.MX51 Debug UART"
  198. depends on SOC_IMX51
  199. help
  200. Say Y here if you want kernel low-level debugging support
  201. on i.MX51.
  202. config DEBUG_IMX53_UART
  203. bool "i.MX53 Debug UART"
  204. depends on SOC_IMX53
  205. help
  206. Say Y here if you want kernel low-level debugging support
  207. on i.MX53.
  208. config DEBUG_IMX6Q_UART
  209. bool "i.MX6Q/DL Debug UART"
  210. depends on SOC_IMX6Q
  211. help
  212. Say Y here if you want kernel low-level debugging support
  213. on i.MX6Q/DL.
  214. config DEBUG_MMP_UART2
  215. bool "Kernel low-level debugging message via MMP UART2"
  216. depends on ARCH_MMP
  217. help
  218. Say Y here if you want kernel low-level debugging support
  219. on MMP UART2.
  220. config DEBUG_MMP_UART3
  221. bool "Kernel low-level debugging message via MMP UART3"
  222. depends on ARCH_MMP
  223. help
  224. Say Y here if you want kernel low-level debugging support
  225. on MMP UART3.
  226. config DEBUG_MSM_UART1
  227. bool "Kernel low-level debugging messages via MSM UART1"
  228. depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
  229. help
  230. Say Y here if you want the debug print routines to direct
  231. their output to the first serial port on MSM devices.
  232. config DEBUG_MSM_UART2
  233. bool "Kernel low-level debugging messages via MSM UART2"
  234. depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
  235. help
  236. Say Y here if you want the debug print routines to direct
  237. their output to the second serial port on MSM devices.
  238. config DEBUG_MSM_UART3
  239. bool "Kernel low-level debugging messages via MSM UART3"
  240. depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
  241. help
  242. Say Y here if you want the debug print routines to direct
  243. their output to the third serial port on MSM devices.
  244. config DEBUG_MSM8660_UART
  245. bool "Kernel low-level debugging messages via MSM 8660 UART"
  246. depends on ARCH_MSM8X60
  247. select MSM_HAS_DEBUG_UART_HS
  248. help
  249. Say Y here if you want the debug print routines to direct
  250. their output to the serial port on MSM 8660 devices.
  251. config DEBUG_MSM8960_UART
  252. bool "Kernel low-level debugging messages via MSM 8960 UART"
  253. depends on ARCH_MSM8960
  254. select MSM_HAS_DEBUG_UART_HS
  255. help
  256. Say Y here if you want the debug print routines to direct
  257. their output to the serial port on MSM 8960 devices.
  258. config DEBUG_MVEBU_UART
  259. bool "Kernel low-level debugging messages via MVEBU UART"
  260. depends on ARCH_MVEBU
  261. help
  262. Say Y here if you want kernel low-level debugging support
  263. on MVEBU based platforms.
  264. config DEBUG_NOMADIK_UART
  265. bool "Kernel low-level debugging messages via NOMADIK UART"
  266. depends on ARCH_NOMADIK
  267. help
  268. Say Y here if you want kernel low-level debugging support
  269. on NOMADIK based platforms.
  270. config DEBUG_OMAP2PLUS_UART
  271. bool "Kernel low-level debugging messages via OMAP2PLUS UART"
  272. depends on ARCH_OMAP2PLUS
  273. help
  274. Say Y here if you want kernel low-level debugging support
  275. on OMAP2PLUS based platforms.
  276. config DEBUG_PICOXCELL_UART
  277. depends on ARCH_PICOXCELL
  278. bool "Use PicoXcell UART for low-level debug"
  279. help
  280. Say Y here if you want kernel low-level debugging support
  281. on PicoXcell based platforms.
  282. config DEBUG_PXA_UART1
  283. depends on ARCH_PXA
  284. bool "Use PXA UART1 for low-level debug"
  285. help
  286. Say Y here if you want kernel low-level debugging support
  287. on PXA UART1.
  288. config DEBUG_REALVIEW_STD_PORT
  289. bool "RealView Default UART"
  290. depends on ARCH_REALVIEW
  291. help
  292. Say Y here if you want the debug print routines to direct
  293. their output to the serial port on RealView EB, PB11MP, PBA8
  294. and PBX platforms.
  295. config DEBUG_REALVIEW_PB1176_PORT
  296. bool "RealView PB1176 UART"
  297. depends on MACH_REALVIEW_PB1176
  298. help
  299. Say Y here if you want the debug print routines to direct
  300. their output to the standard serial port on the RealView
  301. PB1176 platform.
  302. config DEBUG_S3C_UART0
  303. depends on PLAT_SAMSUNG
  304. select DEBUG_EXYNOS_UART if ARCH_EXYNOS
  305. bool "Use S3C UART 0 for low-level debug"
  306. help
  307. Say Y here if you want the debug print routines to direct
  308. their output to UART 0. The port must have been initialised
  309. by the boot-loader before use.
  310. The uncompressor code port configuration is now handled
  311. by CONFIG_S3C_LOWLEVEL_UART_PORT.
  312. config DEBUG_S3C_UART1
  313. depends on PLAT_SAMSUNG
  314. select DEBUG_EXYNOS_UART if ARCH_EXYNOS
  315. bool "Use S3C UART 1 for low-level debug"
  316. help
  317. Say Y here if you want the debug print routines to direct
  318. their output to UART 1. The port must have been initialised
  319. by the boot-loader before use.
  320. The uncompressor code port configuration is now handled
  321. by CONFIG_S3C_LOWLEVEL_UART_PORT.
  322. config DEBUG_S3C_UART2
  323. depends on PLAT_SAMSUNG
  324. select DEBUG_EXYNOS_UART if ARCH_EXYNOS
  325. bool "Use S3C UART 2 for low-level debug"
  326. help
  327. Say Y here if you want the debug print routines to direct
  328. their output to UART 2. The port must have been initialised
  329. by the boot-loader before use.
  330. The uncompressor code port configuration is now handled
  331. by CONFIG_S3C_LOWLEVEL_UART_PORT.
  332. config DEBUG_S3C_UART3
  333. depends on PLAT_SAMSUNG && ARCH_EXYNOS
  334. select DEBUG_EXYNOS_UART
  335. bool "Use S3C UART 3 for low-level debug"
  336. help
  337. Say Y here if you want the debug print routines to direct
  338. their output to UART 3. The port must have been initialised
  339. by the boot-loader before use.
  340. The uncompressor code port configuration is now handled
  341. by CONFIG_S3C_LOWLEVEL_UART_PORT.
  342. config DEBUG_SOCFPGA_UART
  343. depends on ARCH_SOCFPGA
  344. bool "Use SOCFPGA UART for low-level debug"
  345. help
  346. Say Y here if you want kernel low-level debugging support
  347. on SOCFPGA based platforms.
  348. config DEBUG_SUNXI_UART0
  349. bool "Kernel low-level debugging messages via sunXi UART0"
  350. depends on ARCH_SUNXI
  351. help
  352. Say Y here if you want kernel low-level debugging support
  353. on Allwinner A1X based platforms on the UART0.
  354. config DEBUG_SUNXI_UART1
  355. bool "Kernel low-level debugging messages via sunXi UART1"
  356. depends on ARCH_SUNXI
  357. help
  358. Say Y here if you want kernel low-level debugging support
  359. on Allwinner A1X based platforms on the UART1.
  360. config DEBUG_TEGRA_UART
  361. depends on ARCH_TEGRA
  362. bool "Use Tegra UART for low-level debug"
  363. help
  364. Say Y here if you want kernel low-level debugging support
  365. on Tegra based platforms.
  366. config DEBUG_SIRFPRIMA2_UART1
  367. bool "Kernel low-level debugging messages via SiRFprimaII UART1"
  368. depends on ARCH_PRIMA2
  369. help
  370. Say Y here if you want the debug print routines to direct
  371. their output to the uart1 port on SiRFprimaII devices.
  372. config DEBUG_SIRFMARCO_UART1
  373. bool "Kernel low-level debugging messages via SiRFmarco UART1"
  374. depends on ARCH_MARCO
  375. help
  376. Say Y here if you want the debug print routines to direct
  377. their output to the uart1 port on SiRFmarco devices.
  378. config DEBUG_UX500_UART
  379. depends on ARCH_U8500
  380. bool "Use Ux500 UART for low-level debug"
  381. help
  382. Say Y here if you want kernel low-level debugging support
  383. on Ux500 based platforms.
  384. config DEBUG_VEXPRESS_UART0_DETECT
  385. bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
  386. depends on ARCH_VEXPRESS && CPU_CP15_MMU
  387. help
  388. This option enables a simple heuristic which tries to determine
  389. the motherboard's memory map variant (original or RS1) and then
  390. choose the relevant UART0 base address.
  391. Note that this will only work with standard A-class core tiles,
  392. and may fail with non-standard SMM or custom software models.
  393. config DEBUG_VEXPRESS_UART0_CA9
  394. bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
  395. depends on ARCH_VEXPRESS
  396. help
  397. This option selects UART0 at 0x10009000. Except for custom models,
  398. this applies only to the V2P-CA9 tile.
  399. config DEBUG_VEXPRESS_UART0_RS1
  400. bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
  401. depends on ARCH_VEXPRESS
  402. help
  403. This option selects UART0 at 0x1c090000. This applies to most
  404. of the tiles using the RS1 memory map, including all new A-class
  405. core tiles, FPGA-based SMMs and software models.
  406. config DEBUG_VT8500_UART0
  407. bool "Use UART0 on VIA/Wondermedia SoCs"
  408. depends on ARCH_VT8500
  409. help
  410. This option selects UART0 on VIA/Wondermedia System-on-a-chip
  411. devices, including VT8500, WM8505, WM8650 and WM8850.
  412. config DEBUG_LL_UART_NONE
  413. bool "No low-level debugging UART"
  414. depends on !ARCH_MULTIPLATFORM
  415. help
  416. Say Y here if your platform doesn't provide a UART option
  417. below. This relies on your platform choosing the right UART
  418. definition internally in order for low-level debugging to
  419. work.
  420. config DEBUG_ICEDCC
  421. bool "Kernel low-level debugging via EmbeddedICE DCC channel"
  422. help
  423. Say Y here if you want the debug print routines to direct
  424. their output to the EmbeddedICE macrocell's DCC channel using
  425. co-processor 14. This is known to work on the ARM9 style ICE
  426. channel and on the XScale with the PEEDI.
  427. Note that the system will appear to hang during boot if there
  428. is nothing connected to read from the DCC.
  429. config DEBUG_SEMIHOSTING
  430. bool "Kernel low-level debug output via semihosting I/O"
  431. help
  432. Semihosting enables code running on an ARM target to use
  433. the I/O facilities on a host debugger/emulator through a
  434. simple SVC call. The host debugger or emulator must have
  435. semihosting enabled for the special svc call to be trapped
  436. otherwise the kernel will crash.
  437. This is known to work with OpenOCD, as well as
  438. ARM's Fast Models, or any other controlling environment
  439. that implements semihosting.
  440. For more details about semihosting, please see
  441. chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
  442. endchoice
  443. config DEBUG_EXYNOS_UART
  444. bool
  445. config DEBUG_IMX_UART_PORT
  446. int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
  447. DEBUG_IMX25_UART || \
  448. DEBUG_IMX21_IMX27_UART || \
  449. DEBUG_IMX31_UART || \
  450. DEBUG_IMX35_UART || \
  451. DEBUG_IMX51_UART || \
  452. DEBUG_IMX53_UART || \
  453. DEBUG_IMX6Q_UART
  454. default 1
  455. depends on ARCH_MXC
  456. help
  457. Choose UART port on which kernel low-level debug messages
  458. should be output.
  459. choice
  460. prompt "Low-level debug console UART"
  461. depends on DEBUG_OMAP2PLUS_UART
  462. config DEBUG_OMAP2UART1
  463. bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
  464. help
  465. This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
  466. omap3 torpedo and 3530 lv som.
  467. config DEBUG_OMAP2UART2
  468. bool "OMAP2/3/4 UART2"
  469. config DEBUG_OMAP2UART3
  470. bool "OMAP2 UART3 (n8x0)"
  471. config DEBUG_OMAP3UART3
  472. bool "OMAP3 UART3 (most omap3 boards)"
  473. help
  474. This covers at least cm_t3x, beagle, crane, devkit8000,
  475. igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
  476. and 3517evm.
  477. config DEBUG_OMAP4UART3
  478. bool "OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
  479. config DEBUG_OMAP3UART4
  480. bool "OMAP36XX UART4"
  481. config DEBUG_OMAP4UART4
  482. bool "OMAP4/5 UART4"
  483. config DEBUG_TI81XXUART1
  484. bool "TI81XX UART1 (ti8148evm)"
  485. config DEBUG_TI81XXUART2
  486. bool "TI81XX UART2"
  487. config DEBUG_TI81XXUART3
  488. bool "TI81XX UART3 (ti8168evm)"
  489. config DEBUG_AM33XXUART1
  490. bool "AM33XX UART1"
  491. config DEBUG_ZOOM_UART
  492. bool "Zoom2/3 UART"
  493. endchoice
  494. choice
  495. prompt "Low-level debug console UART"
  496. depends on DEBUG_LL && DEBUG_TEGRA_UART
  497. config TEGRA_DEBUG_UART_AUTO_ODMDATA
  498. bool "Via ODMDATA"
  499. help
  500. Automatically determines which UART to use for low-level debug based
  501. on the ODMDATA value. This value is part of the BCT, and is written
  502. to the boot memory device using nvflash, or other flashing tool.
  503. When bits 19:18 are 3, then bits 17:15 indicate which UART to use;
  504. 0/1/2/3/4 are UART A/B/C/D/E.
  505. config TEGRA_DEBUG_UARTA
  506. bool "UART A"
  507. config TEGRA_DEBUG_UARTB
  508. bool "UART B"
  509. config TEGRA_DEBUG_UARTC
  510. bool "UART C"
  511. config TEGRA_DEBUG_UARTD
  512. bool "UART D"
  513. config TEGRA_DEBUG_UARTE
  514. bool "UART E"
  515. endchoice
  516. config DEBUG_LL_INCLUDE
  517. string
  518. default "debug/bcm2835.S" if DEBUG_BCM2835
  519. default "debug/cns3xxx.S" if DEBUG_CNS3XXX
  520. default "debug/exynos.S" if DEBUG_EXYNOS_UART
  521. default "debug/highbank.S" if DEBUG_HIGHBANK_UART
  522. default "debug/icedcc.S" if DEBUG_ICEDCC
  523. default "debug/imx.S" if DEBUG_IMX1_UART || \
  524. DEBUG_IMX25_UART || \
  525. DEBUG_IMX21_IMX27_UART || \
  526. DEBUG_IMX31_UART || \
  527. DEBUG_IMX35_UART || \
  528. DEBUG_IMX51_UART || \
  529. DEBUG_IMX53_UART ||\
  530. DEBUG_IMX6Q_UART
  531. default "debug/mvebu.S" if DEBUG_MVEBU_UART
  532. default "debug/mxs.S" if DEBUG_IMX23_UART || DEBUG_IMX28_UART
  533. default "debug/nomadik.S" if DEBUG_NOMADIK_UART
  534. default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
  535. default "debug/picoxcell.S" if DEBUG_PICOXCELL_UART
  536. default "debug/pxa.S" if DEBUG_PXA_UART1 || DEBUG_MMP_UART2 || \
  537. DEBUG_MMP_UART3
  538. default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
  539. default "debug/socfpga.S" if DEBUG_SOCFPGA_UART
  540. default "debug/sunxi.S" if DEBUG_SUNXI_UART0 || DEBUG_SUNXI_UART1
  541. default "debug/tegra.S" if DEBUG_TEGRA_UART
  542. default "debug/ux500.S" if DEBUG_UX500_UART
  543. default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT || \
  544. DEBUG_VEXPRESS_UART0_CA9 || DEBUG_VEXPRESS_UART0_RS1
  545. default "debug/vt8500.S" if DEBUG_VT8500_UART0
  546. default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
  547. default "mach/debug-macro.S"
  548. config DEBUG_UNCOMPRESS
  549. bool
  550. default y if ARCH_MULTIPLATFORM && DEBUG_LL && \
  551. !DEBUG_OMAP2PLUS_UART && \
  552. !DEBUG_TEGRA_UART
  553. config UNCOMPRESS_INCLUDE
  554. string
  555. default "debug/uncompress.h" if ARCH_MULTIPLATFORM
  556. default "mach/uncompress.h"
  557. config EARLY_PRINTK
  558. bool "Early printk"
  559. depends on DEBUG_LL
  560. help
  561. Say Y here if you want to have an early console using the
  562. kernel low-level debugging functions. Add earlyprintk to your
  563. kernel parameters to enable this console.
  564. config OC_ETM
  565. bool "On-chip ETM and ETB"
  566. depends on ARM_AMBA
  567. help
  568. Enables the on-chip embedded trace macrocell and embedded trace
  569. buffer driver that will allow you to collect traces of the
  570. kernel code.
  571. config ARM_KPROBES_TEST
  572. tristate "Kprobes test module"
  573. depends on KPROBES && MODULES
  574. help
  575. Perform tests of kprobes API and instruction set simulation.
  576. config PID_IN_CONTEXTIDR
  577. bool "Write the current PID to the CONTEXTIDR register"
  578. depends on CPU_COPY_V6
  579. help
  580. Enabling this option causes the kernel to write the current PID to
  581. the PROCID field of the CONTEXTIDR register, at the expense of some
  582. additional instructions during context switch. Say Y here only if you
  583. are planning to use hardware trace tools with this kernel.
  584. endmenu