Disable displaced stepping if trying it fails

[deliverable/binutils-gdb.git] / gdb / dwarf2loc.c

diff --git a/gdb/dwarf2loc.c b/gdb/dwarf2loc.c
index 3aa8ddd5b8276a66e12e0958496b63356101767c..d8e432ed930469f56e605f3c8f0a05111400da97 100644 (file)
--- a/gdb/dwarf2loc.c
+++ b/gdb/dwarf2loc.c
@@ -825,9 +825,8 @@ chain_candidate (struct gdbarch *gdbarch, struct call_site_chain **resultp,
 
   /* See call_site_find_chain_1 why there is no way to reach the bottom callee
      PC again.  In such case there must be two different code paths to reach
-     it, therefore some of the former determined intermediate PCs must differ
-     and the unambiguous chain gets shortened.  */
-  gdb_assert (result->callers + result->callees < result->length);
+     it.  CALLERS + CALLEES equal to LENGTH in the case of self tail-call.  */
+  gdb_assert (result->callers + result->callees <= result->length);
 }
 
 /* Create and return call_site_chain for CALLER_PC and CALLEE_PC.  All the
@@ -2882,7 +2881,7 @@ dwarf2_compile_expr_to_ax (struct agent_expr *expr, struct axs_value *loc,
 
   while (op_ptr < op_end)
     {
-      enum dwarf_location_atom op = *op_ptr;
+      enum dwarf_location_atom op = (enum dwarf_location_atom) *op_ptr;
       uint64_t uoffset, reg;
       int64_t offset;
       int i;
@@ -3765,7 +3764,7 @@ disassemble_dwarf_expression (struct ui_file *stream,
         && (all
             || (data[0] != DW_OP_piece && data[0] != DW_OP_bit_piece)))
     {
-      enum dwarf_location_atom op = *data++;
+      enum dwarf_location_atom op = (enum dwarf_location_atom) *data++;
       uint64_t ul;
       int64_t l;
       const char *name;