---
src/x86_64/Gstep.c | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/src/x86_64/Gstep.c b/src/x86_64/Gstep.c
index d691aa6..85e3989 100644
--- a/src/x86_64/Gstep.c
+++ b/src/x86_64/Gstep.c
@@ -116,6 +116,11 @@ unw_step (unw_cursor_t *cursor)
c->dwarf.loc[RIP] = DWARF_LOC (c->dwarf.cfa, 0);
c->dwarf.cfa += 8;
}
+ else if (DWARF_IS_NULL_LOC (c->dwarf.loc[RBP]))
+ {
+ for (i = 0; i < DWARF_NUM_PRESERVED_REGS; ++i)
+ c->dwarf.loc[i] = DWARF_NULL_LOC;
+ }
else
{
unw_word_t rbp;
@@ -123,7 +128,8 @@ unw_step (unw_cursor_t *cursor)
ret = dwarf_get (&c->dwarf, c->dwarf.loc[RBP], &rbp);
if (ret < 0)
{
- Debug (2, "returning %d\n", ret);
+ Debug (2, "returning %d [RBP=0x%lx]\n", ret,
+ DWARF_GET_LOC (c->dwarf.loc[RBP]));
return ret;
}
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