3 source "lib/Kconfig.debug"
6 bool "Filter access to /dev/mem"
9 If this option is disabled, you allow userspace (root) access to all
10 of memory, including kernel and userspace memory. Accidental
11 access to this is obviously disastrous, but specific access can
12 be used by people debugging the kernel.
14 If this option is switched on, the /dev/mem file only allows
15 userspace access to memory mapped peripherals.
19 # RMK wants arm kernels compiled with frame pointers or stack unwinding.
20 # If you know what you are doing and are willing to live without stack
21 # traces, you can get a slightly smaller kernel by setting this option to
22 # n, but then RMK will have to kill you ;).
25 depends on !THUMB2_KERNEL
26 default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
28 If you say N here, the resulting kernel will be slightly smaller and
29 faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
30 when a problem occurs with the kernel, the information that is
31 reported is severely limited.
34 bool "Enable stack unwinding support (EXPERIMENTAL)"
38 This option enables stack unwinding support in the kernel
39 using the information automatically generated by the
40 compiler. The resulting kernel image is slightly bigger but
41 the performance is not affected. Currently, this feature
42 only works with EABI compilers. If unsure say Y.
46 depends on FUNCTION_TRACER && FRAME_POINTER
50 bool "Verbose user fault messages"
52 When a user program crashes due to an exception, the kernel can
53 print a brief message explaining what the problem was. This is
54 sometimes helpful for debugging but serves no purpose on a
55 production system. Most people should say N here.
57 In addition, you need to pass user_debug=N on the kernel command
58 line to enable this feature. N consists of the sum of:
60 1 - undefined instruction events
62 4 - invalid data aborts
66 # These options are only for real kernel hackers who want to get their hands dirty.
68 bool "Kernel low-level debugging functions (read help!)"
69 depends on DEBUG_KERNEL
71 Say Y here to include definitions of printascii, printch, printhex
72 in the kernel. This is helpful if you are debugging code that
73 executes before the console is initialized.
75 Note that selecting this option will limit the kernel to a single
76 UART definition, as specified below. Attempting to boot the kernel
77 image on a different platform *will not work*, so this option should
78 not be enabled for kernels that are intended to be portable.
81 prompt "Kernel low-level debugging port"
84 config AT91_DEBUG_LL_DBGU0
85 bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10 and 9rl"
86 depends on HAVE_AT91_DBGU0
88 config AT91_DEBUG_LL_DBGU1
89 bool "Kernel low-level debugging on 9263 and 9g45"
90 depends on HAVE_AT91_DBGU1
93 bool "Kernel low-level debugging on BCM2835 PL011 UART"
94 depends on ARCH_BCM2835
96 config DEBUG_CLPS711X_UART1
97 bool "Kernel low-level debugging messages via UART1"
98 depends on ARCH_CLPS711X
100 Say Y here if you want the debug print routines to direct
101 their output to the first serial port on these devices.
103 config DEBUG_CLPS711X_UART2
104 bool "Kernel low-level debugging messages via UART2"
105 depends on ARCH_CLPS711X
107 Say Y here if you want the debug print routines to direct
108 their output to the second serial port on these devices.
111 bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
112 depends on ARCH_CNS3XXX
114 Say Y here if you want the debug print routines to direct
115 their output to the CNS3xxx UART0.
117 config DEBUG_DAVINCI_DA8XX_UART1
118 bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
119 depends on ARCH_DAVINCI_DA8XX
121 Say Y here if you want the debug print routines to direct
122 their output to UART1 serial port on DaVinci DA8XX devices.
124 config DEBUG_DAVINCI_DA8XX_UART2
125 bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
126 depends on ARCH_DAVINCI_DA8XX
128 Say Y here if you want the debug print routines to direct
129 their output to UART2 serial port on DaVinci DA8XX devices.
131 config DEBUG_DAVINCI_DMx_UART0
132 bool "Kernel low-level debugging on DaVinci DMx using UART0"
133 depends on ARCH_DAVINCI_DMx
135 Say Y here if you want the debug print routines to direct
136 their output to UART0 serial port on DaVinci DMx devices.
138 config DEBUG_DAVINCI_TNETV107X_UART1
139 bool "Kernel low-level debugging on DaVinci TNETV107x using UART1"
140 depends on ARCH_DAVINCI_TNETV107X
142 Say Y here if you want the debug print routines to direct
143 their output to UART1 serial port on DaVinci TNETV107X
146 config DEBUG_ZYNQ_UART0
147 bool "Kernel low-level debugging on Xilinx Zynq using UART0"
150 Say Y here if you want the debug print routines to direct
151 their output to UART0 on the Zynq platform.
153 config DEBUG_ZYNQ_UART1
154 bool "Kernel low-level debugging on Xilinx Zynq using UART1"
157 Say Y here if you want the debug print routines to direct
158 their output to UART1 on the Zynq platform.
160 If you have a ZC702 board and want early boot messages to
161 appear on the USB serial adaptor, select this option.
163 config DEBUG_DC21285_PORT
164 bool "Kernel low-level debugging messages via footbridge serial port"
165 depends on FOOTBRIDGE
167 Say Y here if you want the debug print routines to direct
168 their output to the serial port in the DC21285 (Footbridge).
170 config DEBUG_FOOTBRIDGE_COM1
171 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
172 depends on FOOTBRIDGE
174 Say Y here if you want the debug print routines to direct
175 their output to the 8250 at PCI COM1.
177 config DEBUG_HIGHBANK_UART
178 bool "Kernel low-level debugging messages via Highbank UART"
179 depends on ARCH_HIGHBANK
181 Say Y here if you want the debug print routines to direct
182 their output to the UART on Highbank based devices.
184 config DEBUG_IMX1_UART
185 bool "i.MX1 Debug UART"
188 Say Y here if you want kernel low-level debugging support
191 config DEBUG_IMX23_UART
192 bool "i.MX23 Debug UART"
195 Say Y here if you want kernel low-level debugging support
198 config DEBUG_IMX25_UART
199 bool "i.MX25 Debug UART"
202 Say Y here if you want kernel low-level debugging support
205 config DEBUG_IMX21_IMX27_UART
206 bool "i.MX21 and i.MX27 Debug UART"
207 depends on SOC_IMX21 || SOC_IMX27
209 Say Y here if you want kernel low-level debugging support
212 config DEBUG_IMX28_UART
213 bool "i.MX28 Debug UART"
216 Say Y here if you want kernel low-level debugging support
219 config DEBUG_IMX31_UART
220 bool "i.MX31 Debug UART"
223 Say Y here if you want kernel low-level debugging support
226 config DEBUG_IMX35_UART
227 bool "i.MX35 Debug UART"
230 Say Y here if you want kernel low-level debugging support
233 config DEBUG_IMX51_UART
234 bool "i.MX51 Debug UART"
237 Say Y here if you want kernel low-level debugging support
240 config DEBUG_IMX53_UART
241 bool "i.MX53 Debug UART"
244 Say Y here if you want kernel low-level debugging support
247 config DEBUG_IMX6Q_UART
248 bool "i.MX6Q/DL Debug UART"
251 Say Y here if you want kernel low-level debugging support
254 config DEBUG_IMX6SL_UART
255 bool "i.MX6SL Debug UART"
256 depends on SOC_IMX6SL
258 Say Y here if you want kernel low-level debugging support
261 config DEBUG_KEYSTONE_UART0
262 bool "Kernel low-level debugging on KEYSTONE2 using UART0"
263 depends on ARCH_KEYSTONE
265 Say Y here if you want the debug print routines to direct
266 their output to UART0 serial port on KEYSTONE2 devices.
268 config DEBUG_KEYSTONE_UART1
269 bool "Kernel low-level debugging on KEYSTONE2 using UART1"
270 depends on ARCH_KEYSTONE
272 Say Y here if you want the debug print routines to direct
273 their output to UART1 serial port on KEYSTONE2 devices.
275 config DEBUG_MMP_UART2
276 bool "Kernel low-level debugging message via MMP UART2"
279 Say Y here if you want kernel low-level debugging support
282 config DEBUG_MMP_UART3
283 bool "Kernel low-level debugging message via MMP UART3"
286 Say Y here if you want kernel low-level debugging support
289 config DEBUG_MSM_UART1
290 bool "Kernel low-level debugging messages via MSM UART1"
291 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
293 Say Y here if you want the debug print routines to direct
294 their output to the first serial port on MSM devices.
296 config DEBUG_MSM_UART2
297 bool "Kernel low-level debugging messages via MSM UART2"
298 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
300 Say Y here if you want the debug print routines to direct
301 their output to the second serial port on MSM devices.
303 config DEBUG_MSM_UART3
304 bool "Kernel low-level debugging messages via MSM UART3"
305 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
307 Say Y here if you want the debug print routines to direct
308 their output to the third serial port on MSM devices.
310 config DEBUG_MSM8660_UART
311 bool "Kernel low-level debugging messages via MSM 8660 UART"
312 depends on ARCH_MSM8X60
313 select MSM_HAS_DEBUG_UART_HS
315 Say Y here if you want the debug print routines to direct
316 their output to the serial port on MSM 8660 devices.
318 config DEBUG_MSM8960_UART
319 bool "Kernel low-level debugging messages via MSM 8960 UART"
320 depends on ARCH_MSM8960
321 select MSM_HAS_DEBUG_UART_HS
323 Say Y here if you want the debug print routines to direct
324 their output to the serial port on MSM 8960 devices.
326 config DEBUG_MVEBU_UART
327 bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
328 depends on ARCH_MVEBU
330 Say Y here if you want kernel low-level debugging support
331 on MVEBU based platforms.
333 This option should be used with the old bootloaders
334 that left the internal registers mapped at
335 0xd0000000. As of today, this is the case on
336 platforms such as the Globalscale Mirabox or the
337 Plathome OpenBlocks AX3, when using the original
340 If the wrong DEBUG_MVEBU_UART* option is selected,
341 when u-boot hands over to the kernel, the system
342 silently crashes, with no serial output at all.
344 config DEBUG_MVEBU_UART_ALTERNATE
345 bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)"
346 depends on ARCH_MVEBU
348 Say Y here if you want kernel low-level debugging support
349 on MVEBU based platforms.
351 This option should be used with the new bootloaders
352 that remap the internal registers at 0xf1000000.
354 If the wrong DEBUG_MVEBU_UART* option is selected,
355 when u-boot hands over to the kernel, the system
356 silently crashes, with no serial output at all.
358 config DEBUG_NOMADIK_UART
359 bool "Kernel low-level debugging messages via NOMADIK UART"
360 depends on ARCH_NOMADIK
362 Say Y here if you want kernel low-level debugging support
363 on NOMADIK based platforms.
365 config DEBUG_NSPIRE_CLASSIC_UART
366 bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
367 depends on ARCH_NSPIRE
369 Say Y here if you want kernel low-level debugging support
370 on TI-NSPIRE classic models.
372 config DEBUG_NSPIRE_CX_UART
373 bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
374 depends on ARCH_NSPIRE
376 Say Y here if you want kernel low-level debugging support
377 on TI-NSPIRE CX models.
379 config DEBUG_OMAP2PLUS_UART
380 bool "Kernel low-level debugging messages via OMAP2PLUS UART"
381 depends on ARCH_OMAP2PLUS
383 Say Y here if you want kernel low-level debugging support
384 on OMAP2PLUS based platforms.
386 config DEBUG_PICOXCELL_UART
387 depends on ARCH_PICOXCELL
388 bool "Use PicoXcell UART for low-level debug"
390 Say Y here if you want kernel low-level debugging support
391 on PicoXcell based platforms.
393 config DEBUG_PXA_UART1
395 bool "Use PXA UART1 for low-level debug"
397 Say Y here if you want kernel low-level debugging support
400 config DEBUG_REALVIEW_STD_PORT
401 bool "RealView Default UART"
402 depends on ARCH_REALVIEW
404 Say Y here if you want the debug print routines to direct
405 their output to the serial port on RealView EB, PB11MP, PBA8
408 config DEBUG_REALVIEW_PB1176_PORT
409 bool "RealView PB1176 UART"
410 depends on MACH_REALVIEW_PB1176
412 Say Y here if you want the debug print routines to direct
413 their output to the standard serial port on the RealView
416 config DEBUG_ROCKCHIP_UART
417 bool "Kernel low-level debugging messages via Rockchip UART"
418 depends on ARCH_ROCKCHIP
420 Say Y here if you want kernel low-level debugging support
421 on Rockchip based platforms.
423 config DEBUG_S3C_UART0
424 depends on PLAT_SAMSUNG
425 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
426 bool "Use S3C UART 0 for low-level debug"
428 Say Y here if you want the debug print routines to direct
429 their output to UART 0. The port must have been initialised
430 by the boot-loader before use.
432 The uncompressor code port configuration is now handled
433 by CONFIG_S3C_LOWLEVEL_UART_PORT.
435 config DEBUG_S3C_UART1
436 depends on PLAT_SAMSUNG
437 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
438 bool "Use S3C UART 1 for low-level debug"
440 Say Y here if you want the debug print routines to direct
441 their output to UART 1. The port must have been initialised
442 by the boot-loader before use.
444 The uncompressor code port configuration is now handled
445 by CONFIG_S3C_LOWLEVEL_UART_PORT.
447 config DEBUG_S3C_UART2
448 depends on PLAT_SAMSUNG
449 select DEBUG_EXYNOS_UART if ARCH_EXYNOS
450 bool "Use S3C UART 2 for low-level debug"
452 Say Y here if you want the debug print routines to direct
453 their output to UART 2. The port must have been initialised
454 by the boot-loader before use.
456 The uncompressor code port configuration is now handled
457 by CONFIG_S3C_LOWLEVEL_UART_PORT.
459 config DEBUG_S3C_UART3
460 depends on PLAT_SAMSUNG && ARCH_EXYNOS
461 select DEBUG_EXYNOS_UART
462 bool "Use S3C UART 3 for low-level debug"
464 Say Y here if you want the debug print routines to direct
465 their output to UART 3. The port must have been initialised
466 by the boot-loader before use.
468 The uncompressor code port configuration is now handled
469 by CONFIG_S3C_LOWLEVEL_UART_PORT.
471 config DEBUG_SOCFPGA_UART
472 depends on ARCH_SOCFPGA
473 bool "Use SOCFPGA UART for low-level debug"
475 Say Y here if you want kernel low-level debugging support
476 on SOCFPGA based platforms.
478 config DEBUG_SUNXI_UART0
479 bool "Kernel low-level debugging messages via sunXi UART0"
480 depends on ARCH_SUNXI
482 Say Y here if you want kernel low-level debugging support
483 on Allwinner A1X based platforms on the UART0.
485 config DEBUG_SUNXI_UART1
486 bool "Kernel low-level debugging messages via sunXi UART1"
487 depends on ARCH_SUNXI
489 Say Y here if you want kernel low-level debugging support
490 on Allwinner A1X based platforms on the UART1.
492 config DEBUG_TEGRA_UART
493 depends on ARCH_TEGRA
494 bool "Use Tegra UART for low-level debug"
496 Say Y here if you want kernel low-level debugging support
497 on Tegra based platforms.
499 config DEBUG_SIRFPRIMA2_UART1
500 bool "Kernel low-level debugging messages via SiRFprimaII UART1"
501 depends on ARCH_PRIMA2
503 Say Y here if you want the debug print routines to direct
504 their output to the uart1 port on SiRFprimaII devices.
506 config DEBUG_SIRFMARCO_UART1
507 bool "Kernel low-level debugging messages via SiRFmarco UART1"
508 depends on ARCH_MARCO
510 Say Y here if you want the debug print routines to direct
511 their output to the uart1 port on SiRFmarco devices.
513 config DEBUG_STI_UART
515 bool "Use StiH415/416 ASC for low-level debug"
517 Say Y here if you want kernel low-level debugging support
518 on StiH415/416 based platforms like B2000, B2020.
519 It support UART2 and SBC_UART1.
523 config DEBUG_U300_UART
524 bool "Kernel low-level debugging messages via U300 UART0"
527 Say Y here if you want the debug print routines to direct
528 their output to the uart port on U300 devices.
530 config DEBUG_UX500_UART
531 depends on ARCH_U8500
532 bool "Use Ux500 UART for low-level debug"
534 Say Y here if you want kernel low-level debugging support
535 on Ux500 based platforms.
537 config DEBUG_VEXPRESS_UART0_DETECT
538 bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
539 depends on ARCH_VEXPRESS && CPU_CP15_MMU
541 This option enables a simple heuristic which tries to determine
542 the motherboard's memory map variant (original or RS1) and then
543 choose the relevant UART0 base address.
545 Note that this will only work with standard A-class core tiles,
546 and may fail with non-standard SMM or custom software models.
548 config DEBUG_VEXPRESS_UART0_CA9
549 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
550 depends on ARCH_VEXPRESS
552 This option selects UART0 at 0x10009000. Except for custom models,
553 this applies only to the V2P-CA9 tile.
555 config DEBUG_VEXPRESS_UART0_RS1
556 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
557 depends on ARCH_VEXPRESS
559 This option selects UART0 at 0x1c090000. This applies to most
560 of the tiles using the RS1 memory map, including all new A-class
561 core tiles, FPGA-based SMMs and software models.
563 config DEBUG_VEXPRESS_UART0_CRX
564 bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
565 depends on ARCH_VEXPRESS && !MMU
567 This option selects UART0 at 0xb0090000. This is appropriate for
568 Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
570 config DEBUG_VT8500_UART0
571 bool "Use UART0 on VIA/Wondermedia SoCs"
572 depends on ARCH_VT8500
574 This option selects UART0 on VIA/Wondermedia System-on-a-chip
575 devices, including VT8500, WM8505, WM8650 and WM8850.
577 config DEBUG_LL_UART_NONE
578 bool "No low-level debugging UART"
579 depends on !ARCH_MULTIPLATFORM
581 Say Y here if your platform doesn't provide a UART option
582 below. This relies on your platform choosing the right UART
583 definition internally in order for low-level debugging to
587 bool "Kernel low-level debugging via EmbeddedICE DCC channel"
589 Say Y here if you want the debug print routines to direct
590 their output to the EmbeddedICE macrocell's DCC channel using
591 co-processor 14. This is known to work on the ARM9 style ICE
592 channel and on the XScale with the PEEDI.
594 Note that the system will appear to hang during boot if there
595 is nothing connected to read from the DCC.
597 config DEBUG_SEMIHOSTING
598 bool "Kernel low-level debug output via semihosting I/O"
600 Semihosting enables code running on an ARM target to use
601 the I/O facilities on a host debugger/emulator through a
602 simple SVC call. The host debugger or emulator must have
603 semihosting enabled for the special svc call to be trapped
604 otherwise the kernel will crash.
606 This is known to work with OpenOCD, as well as
607 ARM's Fast Models, or any other controlling environment
608 that implements semihosting.
610 For more details about semihosting, please see
611 chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
615 config DEBUG_EXYNOS_UART
618 config DEBUG_IMX_UART_PORT
619 int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
620 DEBUG_IMX25_UART || \
621 DEBUG_IMX21_IMX27_UART || \
622 DEBUG_IMX31_UART || \
623 DEBUG_IMX35_UART || \
624 DEBUG_IMX51_UART || \
625 DEBUG_IMX53_UART || \
626 DEBUG_IMX6Q_UART || \
631 Choose UART port on which kernel low-level debug messages
635 prompt "Low-level debug console UART"
636 depends on DEBUG_OMAP2PLUS_UART
638 config DEBUG_OMAP2UART1
639 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
641 This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
642 omap3 torpedo and 3530 lv som.
644 config DEBUG_OMAP2UART2
645 bool "OMAP2/3/4 UART2"
647 config DEBUG_OMAP2UART3
648 bool "OMAP2 UART3 (n8x0)"
650 config DEBUG_OMAP3UART3
651 bool "OMAP3 UART3 (most omap3 boards)"
653 This covers at least cm_t3x, beagle, crane, devkit8000,
654 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
657 config DEBUG_OMAP4UART3
658 bool "OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
660 config DEBUG_OMAP3UART4
661 bool "OMAP36XX UART4"
663 config DEBUG_OMAP4UART4
666 config DEBUG_TI81XXUART1
667 bool "TI81XX UART1 (ti8148evm)"
669 config DEBUG_TI81XXUART2
672 config DEBUG_TI81XXUART3
673 bool "TI81XX UART3 (ti8168evm)"
675 config DEBUG_AM33XXUART1
678 config DEBUG_ZOOM_UART
683 prompt "Low-level debug console UART"
684 depends on DEBUG_ROCKCHIP_UART
686 config DEBUG_RK29_UART0
689 config DEBUG_RK29_UART1
692 config DEBUG_RK29_UART2
695 config DEBUG_RK3X_UART0
698 config DEBUG_RK3X_UART1
701 config DEBUG_RK3X_UART2
704 config DEBUG_RK3X_UART3
709 prompt "Low-level debug console UART"
710 depends on DEBUG_LL && DEBUG_TEGRA_UART
712 config TEGRA_DEBUG_UART_AUTO_ODMDATA
715 Automatically determines which UART to use for low-level debug based
716 on the ODMDATA value. This value is part of the BCT, and is written
717 to the boot memory device using nvflash, or other flashing tool.
718 When bits 19:18 are 3, then bits 17:15 indicate which UART to use;
719 0/1/2/3/4 are UART A/B/C/D/E.
721 config TEGRA_DEBUG_UARTA
724 config TEGRA_DEBUG_UARTB
727 config TEGRA_DEBUG_UARTC
730 config TEGRA_DEBUG_UARTD
733 config TEGRA_DEBUG_UARTE
739 prompt "Low-level debug console UART"
740 depends on DEBUG_LL && DEBUG_STI_UART
742 config STIH41X_DEBUG_ASC2
745 Say Y here if you want kernel low-level debugging support
746 on STiH415/416 based platforms like b2000, which has
747 default UART wired up to ASC2.
751 config STIH41X_DEBUG_SBC_ASC1
754 Say Y here if you want kernel low-level debugging support
755 on STiH415/416 based platforms like b2020. which has
756 default UART wired up to SBC ASC1.
762 config DEBUG_LL_INCLUDE
764 default "debug/bcm2835.S" if DEBUG_BCM2835
765 default "debug/cns3xxx.S" if DEBUG_CNS3XXX
766 default "debug/exynos.S" if DEBUG_EXYNOS_UART
767 default "debug/highbank.S" if DEBUG_HIGHBANK_UART
768 default "debug/icedcc.S" if DEBUG_ICEDCC
769 default "debug/imx.S" if DEBUG_IMX1_UART || \
770 DEBUG_IMX25_UART || \
771 DEBUG_IMX21_IMX27_UART || \
772 DEBUG_IMX31_UART || \
773 DEBUG_IMX35_UART || \
774 DEBUG_IMX51_UART || \
776 DEBUG_IMX6Q_UART || \
778 default "debug/keystone.S" if DEBUG_KEYSTONE_UART0 || \
780 default "debug/mvebu.S" if DEBUG_MVEBU_UART || \
781 DEBUG_MVEBU_UART_ALTERNATE
782 default "debug/mxs.S" if DEBUG_IMX23_UART || DEBUG_IMX28_UART
783 default "debug/nomadik.S" if DEBUG_NOMADIK_UART
784 default "debug/nspire.S" if DEBUG_NSPIRE_CX_UART || \
785 DEBUG_NSPIRE_CLASSIC_UART
786 default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
787 default "debug/picoxcell.S" if DEBUG_PICOXCELL_UART
788 default "debug/pxa.S" if DEBUG_PXA_UART1 || DEBUG_MMP_UART2 || \
790 default "debug/rockchip.S" if DEBUG_ROCKCHIP_UART
791 default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
792 default "debug/socfpga.S" if DEBUG_SOCFPGA_UART
793 default "debug/sti.S" if DEBUG_STI_UART
794 default "debug/sunxi.S" if DEBUG_SUNXI_UART0 || DEBUG_SUNXI_UART1
795 default "debug/tegra.S" if DEBUG_TEGRA_UART
796 default "debug/u300.S" if DEBUG_U300_UART
797 default "debug/ux500.S" if DEBUG_UX500_UART
798 default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT || \
799 DEBUG_VEXPRESS_UART0_CA9 || DEBUG_VEXPRESS_UART0_RS1 || \
800 DEBUG_VEXPRESS_UART0_CRX
801 default "debug/vt8500.S" if DEBUG_VT8500_UART0
802 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
803 default "mach/debug-macro.S"
805 config DEBUG_UNCOMPRESS
807 depends on ARCH_MULTIPLATFORM
808 default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
811 This option influences the normal decompressor output for
812 multiplatform kernels. Normally, multiplatform kernels disable
813 decompressor output because it is not possible to know where to
814 send the decompressor output.
816 When this option is set, the selected DEBUG_LL output method
817 will be re-used for normal decompressor output on multiplatform
821 config UNCOMPRESS_INCLUDE
823 default "debug/uncompress.h" if ARCH_MULTIPLATFORM
824 default "mach/uncompress.h"
830 Say Y here if you want to have an early console using the
831 kernel low-level debugging functions. Add earlyprintk to your
832 kernel parameters to enable this console.
835 bool "On-chip ETM and ETB"
838 Enables the on-chip embedded trace macrocell and embedded trace
839 buffer driver that will allow you to collect traces of the
842 config ARM_KPROBES_TEST
843 tristate "Kprobes test module"
844 depends on KPROBES && MODULES
846 Perform tests of kprobes API and instruction set simulation.
848 config PID_IN_CONTEXTIDR
849 bool "Write the current PID to the CONTEXTIDR register"
850 depends on CPU_COPY_V6
852 Enabling this option causes the kernel to write the current PID to
853 the PROCID field of the CONTEXTIDR register, at the expense of some
854 additional instructions during context switch. Say Y here only if you
855 are planning to use hardware trace tools with this kernel.