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authorPaul Mundt <lethal@linux-sh.org>2012-03-30 19:31:22 +0900
committerPaul Mundt <lethal@linux-sh.org>2012-03-30 19:31:22 +0900
commitda47f4a3186b4f55914cceffb51adfa55ef4897e (patch)
treec5098135dcbb2964a76da7d187b3620b3b2cead5 /arch/sh/Kconfig.debug
parentf03c4866d31e913a8dbc84f7d1459abdaf0bd326 (diff)
downloadvexpress-lsk-da47f4a3186b4f55914cceffb51adfa55ef4897e.tar.gz
sh: dwarf unwinder depends on SHcompact.
Presently there's no SHmedia support plugged in for the dwarf unwinder. While it's trivial to provide an SHmedia version of dwarf_read_arch_reg(), the general sh64 case is more complicated in that the TLB miss handler uses a locked down set of registers for optimization (including the frame pointer) which we need for the unwind table generation. While freeing up the frame pointer for use in the TLB miss handler is reasonably straightforward, it's still more trouble than it's worth, so we simply restrict the unwinder to 32-bit for now. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/Kconfig.debug')
-rw-r--r--arch/sh/Kconfig.debug1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index c1d5a820b1a..5f2bb4242c0 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -61,6 +61,7 @@ config DUMP_CODE
config DWARF_UNWINDER
bool "Enable the DWARF unwinder for stacktraces"
select FRAME_POINTER
+ depends on SUPERH32
default n
help
Enabling this option will make stacktraces more accurate, at