Re: [PING] [PATCH][PR/24474] Make gdb.lookup_static_symbol also check the STATIC_SCOPE

["Christian Biesinger via gdb-patches" <gdb-patches at sourceware dot org>]

weekly ping

On Mon, Jul 8, 2019 at 5:04 PM Christian Biesinger
<cbiesinger@google.com> wrote:
>
> ping?
>
> On Tue, Jun 4, 2019 at 8:24 PM Christian Biesinger
> <cbiesinger@google.com> wrote:
> >
> > gdb/ChangeLog:
> >
> > 2019-06-04  Christian Biesinger  <cbiesinger@google.com>
> >
> >         PR/24474: Make gdb.lookup_global_symbol also check the STATIC_SCOPE
> >         because from a C/C++ developer's perspective, these are also globals.
> >         * NEWS: Mention this change.
> >         * python/py-symbol.c (gdbpy_lookup_global_symbol): Call
> >         lookup_static_symbol if lookup_global_symbol returns NULL.
> >
> > gdb/testsuite/ChangeLog:
> >
> > 2019-06-04  Christian Biesinger  <cbiesinger@google.com>
> >
> >         * gdb.python/py-symbol.c: Add a static variable and one in an anonymous
> >         namespace.
> >         * gdb.python/py-symbol.exp: Check that lookup_global_symbol finds those
> >         variables.
> >
> >
> > ---
> >  gdb/NEWS                               |  2 ++
> >  gdb/python/py-symbol.c                 | 11 +++++++++++
> >  gdb/testsuite/gdb.python/py-symbol.c   |  5 +++++
> >  gdb/testsuite/gdb.python/py-symbol.exp | 13 +++++++++++++
> >  4 files changed, 31 insertions(+)
> >
> > diff --git a/gdb/NEWS b/gdb/NEWS
> > index ded1fce406..bfd8d0a191 100644
> > --- a/gdb/NEWS
> > +++ b/gdb/NEWS
> > @@ -30,6 +30,8 @@
> >    ** gdb.Type has a new property 'objfile' which returns the objfile the
> >       type was defined in.
> >
> > +  ** gdb.lookup_global_symbol will now also find symbols with static linkage.
> > +
> >  * New built-in convenience variables $_shell_exitcode and $_shell_exitsignal
> >    provide the exitcode or exit status of the shell commands launched by
> >    GDB commands such as "shell", "pipe" and "make".
> > diff --git a/gdb/python/py-symbol.c b/gdb/python/py-symbol.c
> > index 8605ae71a2..5636ef9013 100644
> > --- a/gdb/python/py-symbol.c
> > +++ b/gdb/python/py-symbol.c
> > @@ -456,6 +456,17 @@ gdbpy_lookup_global_symbol (PyObject *self, PyObject *args, PyObject *kw)
> >        GDB_PY_HANDLE_EXCEPTION (except);
> >      }
> >
> > +  if (symbol == NULL) {
> > +    try
> > +      {
> > +        symbol = lookup_static_symbol (name, (domain_enum) domain).symbol;
> > +      }
> > +    catch (const gdb_exception &except)
> > +      {
> > +        GDB_PY_HANDLE_EXCEPTION (except);
> > +      }
> > +  }
> > +
> >    if (symbol)
> >      {
> >        sym_obj = symbol_to_symbol_object (symbol);
> > diff --git a/gdb/testsuite/gdb.python/py-symbol.c b/gdb/testsuite/gdb.python/py-symbol.c
> > index f77c8c8585..06a931bf5d 100644
> > --- a/gdb/testsuite/gdb.python/py-symbol.c
> > +++ b/gdb/testsuite/gdb.python/py-symbol.c
> > @@ -32,9 +32,14 @@ class SimpleClass
> >      return i; /* Break in class. */
> >    }
> >  };
> > +
> > +namespace {
> > +  int anon = 10;
> > +};
> >  #endif
> >
> >  int qq = 72;                   /* line of qq */
> > +static int rr = 42;            /* line of rr */
> >
> >  int func (int arg)
> >  {
> > diff --git a/gdb/testsuite/gdb.python/py-symbol.exp b/gdb/testsuite/gdb.python/py-symbol.exp
> > index 5b8a2be7c4..722fcda0f0 100644
> > --- a/gdb/testsuite/gdb.python/py-symbol.exp
> > +++ b/gdb/testsuite/gdb.python/py-symbol.exp
> > @@ -48,6 +48,16 @@ gdb_test "python print (gdb.lookup_global_symbol('qq').needs_frame)" \
> >      "False" \
> >      "print whether qq needs a frame"
> >
> > +set rr_line [gdb_get_line_number "line of rr"]
> > +gdb_test "python print (gdb.lookup_global_symbol ('rr').line)" "$rr_line" \
> > +    "print line number of rr"
> > +
> > +gdb_test "python print (gdb.lookup_global_symbol ('rr').value ())" "42" \
> > +    "print value of rr"
> > +
> > +gdb_test "python print (gdb.lookup_global_symbol ('rr').needs_frame)" \
> > +    "False" \
> > +    "print whether rr needs a frame"
> >
> >  if ![runto_main] then {
> >      fail "can't run to main"
> > @@ -137,6 +147,9 @@ gdb_start
> >  gdb_reinitialize_dir $srcdir/$subdir
> >  gdb_load ${binfile}-cxx
> >
> > +gdb_test "python print (gdb.lookup_global_symbol ('(anonymous namespace)::anon').value ())" "10" \
> > +    "print value of rr"
> > +
> >  if ![runto_main] then {
> >      fail "can't run to main"
> >      return 0
> > --
> > 2.22.0.rc1.311.g5d7573a151-goog
> >