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Change type of encoding argument to gdbpy_extract_lazy_string

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This changes gdbpy_extract_lazy_string's "encoding" argument to be a
unique_xmalloc_ptr.  I chose this rather than std::string because it
can sometimes be NULL.

2017-01-10  Tom Tromey  <tom@tromey.com>

	* python/py-prettyprint.c (print_string_repr, print_children):
	Update.
	* python/py-lazy-string.c (gdbpy_extract_lazy_string): Change type
	of "encoding".
	* varobj.c (varobj_value_get_print_value): Update.
	* python/python-internal.h (gdbpy_extract_lazy_string): Update.
This commit is contained in:
Tom Tromey 2016-11-12 11:48:48 -07:00
parent bde7b3e3a0
commit 1eba63835e
5 changed files with 22 additions and 16 deletions
Download patch file Download diff file Expand all files Collapse all files

9
gdb/python/py-lazy-string.c
View file

@ -180,14 +180,13 @@ gdbpy_is_lazy_string (PyObject *result)
}
/* Extract the parameters from the lazy string object STRING.
ENCODING will either be set to NULL, or will be allocated with
xmalloc, in which case the callers is responsible for freeing
it. */
ENCODING may be set to NULL, if no encoding is found. */
void
gdbpy_extract_lazy_string (PyObject *string, CORE_ADDR *addr,
struct type **str_type,
long *length, char **encoding)
long *length,
gdb::unique_xmalloc_ptr<char> *encoding)
{
lazy_string_object *lazy;
@ -198,7 +197,7 @@ gdbpy_extract_lazy_string (PyObject *string, CORE_ADDR *addr,
*addr = lazy->address;
*str_type = lazy->type;
*length = lazy->length;
*encoding = lazy->encoding ? xstrdup (lazy->encoding) : NULL;
encoding->reset (lazy->encoding ? xstrdup (lazy->encoding) : NULL);
}

10
gdb/python/py-prettyprint.c
View file

@ -301,15 +301,14 @@ print_string_repr (PyObject *printer, const char *hint,
CORE_ADDR addr;
long length;
struct type *type;
char *encoding = NULL;
gdb::unique_xmalloc_ptr<char> encoding;
struct value_print_options local_opts = *options;
make_cleanup (free_current_contents, &encoding);
gdbpy_extract_lazy_string (py_str, &addr, &type,
&length, &encoding);
local_opts.addressprint = 0;
val_print_string (type, encoding, addr, (int) length,
val_print_string (type, encoding.get (), addr, (int) length,
stream, &local_opts);
}
else
@ -610,14 +609,13 @@ print_children (PyObject *printer, const char *hint,
CORE_ADDR addr;
struct type *type;
long length;
char *encoding = NULL;
gdb::unique_xmalloc_ptr<char> encoding;
struct value_print_options local_opts = *options;
make_cleanup (free_current_contents, &encoding);
gdbpy_extract_lazy_string (py_v, &addr, &type, &length, &encoding);
local_opts.addressprint = 0;
val_print_string (type, encoding, addr, (int) length, stream,
val_print_string (type, encoding.get (), addr, (int) length, stream,
&local_opts);
}
else if (gdbpy_is_string (py_v))

3
gdb/python/python-internal.h
View file

@ -583,7 +583,8 @@ gdb::unique_xmalloc_ptr<char> gdbpy_exception_to_string (PyObject *ptype,
int gdbpy_is_lazy_string (PyObject *result);
void gdbpy_extract_lazy_string (PyObject *string, CORE_ADDR *addr,
struct type **str_type,
long *length, char **encoding);
long *length,
gdb::unique_xmalloc_ptr<char> *encoding);
int gdbpy_is_value_object (PyObject *obj);