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| author | fche <fche> | 2008-03-26 21:22:26 +0000 |
|---|---|---|
| committer | fche <fche> | 2008-03-26 21:22:26 +0000 |
| commit | 0301cfe75d47bc8e26607ef8372c76239a487113 (patch) | |
| tree | 2a2d3cd225cce5689347f8fbff61a67e3aad2c15 | |
| parent | 9b9d592ebd99522606996202a22e6382e7945752 (diff) | |
| download | systemtap-steved-0301cfe75d47bc8e26607ef8372c76239a487113.tar.gz systemtap-steved-0301cfe75d47bc8e26607ef8372c76239a487113.tar.xz systemtap-steved-0301cfe75d47bc8e26607ef8372c76239a487113.zip | |
2008-03-26 Frank Ch. Eigler <fche@elastic.org>
* translate.cxx (emit_function): Set context last_stmt, in case
an error occurs during the function.
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | tapsets.cxx | 9 | ||||
| -rw-r--r-- | translate.cxx | 3 |
3 files changed, 17 insertions, 0 deletions
@@ -1,3 +1,8 @@ +2008-03-26 Frank Ch. Eigler <fche@elastic.org> + + * translate.cxx (emit_function): Set context last_stmt, in case + an error occurs during the function. + 2008-03-25 Frank Ch. Eigler <fche@elastic.org> * stap.1.in: Clarify utility of epilogue type probe aliases. diff --git a/tapsets.cxx b/tapsets.cxx index a9db3717..39aa60ad 100644 --- a/tapsets.cxx +++ b/tapsets.cxx @@ -1587,6 +1587,15 @@ struct dwflpp unsigned i = 0; while (i < components.size()) { + /* XXX: This would be desirable, but we don't get the target_symbol token, + and printing that gives us the file:line number too early anyway. */ +#if 0 + // Emit a marker to note which field is being access-attempted, to give + // better error messages if deref() fails. + string piece = string(...target_symbol token...) + string ("#") + stringify(components[i].second); + obstack_printf (pool, "c->last_stmt = %s;", lex_cast_qstring(piece).c_str()); +#endif + die = dwarf_formref_die (attr_mem, die_mem); const int typetag = dwarf_tag (die); switch (typetag) diff --git a/translate.cxx b/translate.cxx index 2bfacefc..f30fca7b 100644 --- a/translate.cxx +++ b/translate.cxx @@ -1360,6 +1360,9 @@ c_unparser::emit_function (functiondecl* v) o->newline() << "#define THIS l"; o->newline() << "if (0) goto out;"; // make sure out: is marked used + // set this, in case embedded-c code sets last_error but doesn't otherwise identify itself + o->newline() << "c->last_stmt = " << lex_cast_qstring(*v->tok) << ";"; + // check/increment nesting level o->newline() << "if (unlikely (c->nesting+2 >= MAXNESTING)) {"; o->newline(1) << "c->last_error = \"MAXNESTING exceeded\";"; |