Messages in this thread | | | Date | Sat, 14 Nov 2020 00:58:01 +0100 | From | Alexandre Belloni <> | Subject | Re: ./include/generated/autoconf.h:1601:33: fatal error: mach/debug-macro.S: No such file or directory |
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On 11/11/2020 09:51:26+0100, Linus Walleij wrote: > On Wed, Nov 11, 2020 at 7:18 AM kernel test robot <lkp@intel.com> wrote: > > > In file included from include/linux/kconfig.h:7, > > from <command-line>: > > >> ./include/generated/autoconf.h:1601:33: fatal error: mach/debug-macro.S: No such file or directory > > 1601 | #define CONFIG_DEBUG_LL_INCLUDE "mach/debug-macro.S" > > | ^~~~~~~~~~~~~~~~~~~~ > > compilation terminated. > > This is an interesting one! > > It happens when CONFIG_DEBUG_LL_INCLUDE does not have a custom > debug header for the platform under arch/arm/include/debug and the > KConfig falls through to the default value, which is <mach/debug-macro.S>. > > Only that the majority is not using <mach/*> anymore. > > I feel a bit like setting the default to debug/8250.S or something. > > Suggestions? > > Then the actual bug exposed: > > The config tested by the robot is using > CONFIG_ARCH_AT91=y > CONFIG_SOC_SAMV7=y > > When I look into Kconfig.debug it seems that this will define > DEBUG_AT91_SAMV7_USART1 but only a physical address, > no virtual address and and actually no debug header. It seems > LL_DEBUG is broken on SAMV7 and never really worked > so now that crops up. > > Nicolas, something that should be fixed, I think? >
I confirm DEBUG_LL is not broken on SAMV7. The config used by lkp doen't define DEBUG_AT91_SAMV7_USART1, it is not the culprit. Select it and the problem is gone since DEBUG_AT91_SAMV7_USART1 selects DEBUG_AT91_UART and DEBUG_LL_INCLUDE has: default "debug/at91.S" if DEBUG_AT91_UART
Your issue is CONFIG_DEBUG_SEMIHOSTING
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