DW_CFA_def_cfa_expression: don't push the CFA on the stack before

evaluation starts.  For DW_CFA_val_expression and DW_CFA_expression
doing so is correct, but not for DW_CFA_def_cfa_expression.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15160

diff --git a/coregrind/m_debuginfo/readdwarf.c b/coregrind/m_debuginfo/readdwarf.c
index a038a52dbbcf011b79466ccff4dc04288800eb5c..4a0f75019c11770fbab7eca47e9952efdde3bee0 100644 (file)
--- a/coregrind/m_debuginfo/readdwarf.c
+++ b/coregrind/m_debuginfo/readdwarf.c
@@ -3311,7 +3311,7 @@ static Int run_CF_instruction ( /*MOD*/UnwindContext* ctx,
             VG_(printf)("  DW_CFA_def_cfa_expression (");
          /* Convert the expression into a dag rooted at ctx->exprs index j,
             or fail. */
-         j = dwarfexpr_to_dag ( ctx, expr, len, True/*push CFA at start*/, 
+         j = dwarfexpr_to_dag ( ctx, expr, len, False/*!push CFA at start*/, 
                                 di->ddump_frames);
          if (di->ddump_frames)
             VG_(printf)(")\n");