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authorMichal Simek <monstr@monstr.eu>2010-08-03 11:45:08 +0200
committerMichal Simek <monstr@monstr.eu>2010-08-04 10:45:17 +0200
commit2d5973cb5ac5d04662f86e19a06a4c52fa4c4ae3 (patch)
tree21ddc58eed5ccad856fc44dfb0ee794da41d5b16 /arch/microblaze/Kconfig
parent751f1605e03533a6279ccf456e938e9595c7d888 (diff)
downloadvexpress-lsk-2d5973cb5ac5d04662f86e19a06a4c52fa4c4ae3.tar.gz
microblaze: Add KGDB support
Kgdb uses brki r16, 0x18 instruction to call low level _debug_exception function which save current state to pt_regs and call microblaze_kgdb_break function. _debug_exception should be called only from the kernel space. User space calling is not supported because user application debugging uses different handling. pt_regs_to_gdb_regs loads additional special registers which can't be changed * Enable KGDB in Kconfig * Remove ancient not-tested KGDB support * Remove ancient _debug_exception code from entry.S Only MMU KGDB support is supported. Signed-off-by: Michal Simek <monstr@monstr.eu> CC: Jason Wessel <jason.wessel@windriver.com> CC: John Williams <john.williams@petalogix.com> CC: Edgar E. Iglesias <edgar.iglesias@petalogix.com> CC: linux-kernel@vger.kernel.org Acked-by: Jason Wessel <jason.wessel@windriver.com>
Diffstat (limited to 'arch/microblaze/Kconfig')
-rw-r--r--arch/microblaze/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index a51742190c1..be3855250db 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -14,6 +14,7 @@ config MICROBLAZE
select USB_ARCH_HAS_EHCI
select ARCH_WANT_OPTIONAL_GPIOLIB
select HAVE_OPROFILE
+ select HAVE_ARCH_KGDB
select HAVE_DMA_ATTRS
select HAVE_DMA_API_DEBUG
select TRACING_SUPPORT