sh: unwinder: Set the flags for DW_CFA_val_offset ops as DWARF_VAL_OFFSET
The handling of DW_CFA_val_offset ops was incorrectly using the
DWARF_REG_OFFSET flag but the register's value cannot be calculated
using the DWARF_REG_OFFSET method. Create a new flag to indicate that a
different method must be used to calculate the register's value even
though there is no implementation for DWARF_VAL_OFFSET yet; it's mainly
just a place holder.
Signed-off-by: Matt Fleming <matt@console-pimps.org>
diff --git a/arch/sh/kernel/dwarf.c b/arch/sh/kernel/dwarf.c
index e4810375..d271d04 100644
--- a/arch/sh/kernel/dwarf.c
+++ b/arch/sh/kernel/dwarf.c
@@ -11,6 +11,7 @@
*
* TODO:
* - DWARF64 doesn't work.
+ * - Registers with DWARF_VAL_OFFSET rules aren't handled properly.
*/
/* #define DEBUG */
@@ -499,7 +500,7 @@
count = dwarf_read_leb128(current_insn, &offset);
offset *= cie->data_alignment_factor;
regp = dwarf_frame_alloc_reg(frame, reg);
- regp->flags |= DWARF_REG_OFFSET;
+ regp->flags |= DWARF_VAL_OFFSET;
regp->addr = offset;
break;
case DW_CFA_GNU_args_size: