[PATCH] ARM: debug: no uncompress debugging while semihosting

[Linus Walleij]

The build robots have discovered that uncompress debugging
and semihosting does not play well together.

This is due to many factors but in general semihosting
debug needs to be rewritten to work the same way as any
LL_DEBUG, e.g. with a header in
arch/arm/include/debug/semihosting.S
This is a long term solution and needs testing on real
hardware and/or software models using semihosting.

For now disable uncompress debugging under semihosting.

Link: https://lore.kernel.org/linux-arm-kernel/CAK8P3a2MyLnULmUr4zgzkiWPiYfp+Xs8ruz9_q-PugVf_9DCCw@mail.gmail.com/
Reported-by: kernel test robot <lkp at intel.com>
Reported-by: Alexandre Belloni <alexandre.belloni at bootlin.com>
Suggested-by: Arnd Bergmann <arnd at kernel.org>
Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
---
 arch/arm/Kconfig.debug | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 8986a91a6f31..c57504f8aa6f 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -1928,7 +1928,7 @@ config DEBUG_UNCOMPRESS
 	depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
 	depends on DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
 		     (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \
-		     !DEBUG_BRCMSTB_UART
+		     !DEBUG_BRCMSTB_UART && !DEBUG_SEMIHOSTING
 	help
 	  This option influences the normal decompressor output for
 	  multiplatform kernels.  Normally, multiplatform kernels disable
-- 
2.26.2