|author||Paul Mundt <firstname.lastname@example.org>||2012-03-30 19:31:22 +0900|
|committer||Paul Mundt <email@example.com>||2012-03-30 19:31:22 +0900|
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 <firstname.lastname@example.org>
Diffstat (limited to 'arch/sh/Kconfig.debug')
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index c1d5a820b1a..5f2bb4242c0 100644
@@ -61,6 +61,7 @@ config DUMP_CODE
bool "Enable the DWARF unwinder for stacktraces"
+ depends on SUPERH32
Enabling this option will make stacktraces more accurate, at