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Revision 0ce31d340b264a550a3c574e1d6913f4affd4669 authored by Miss Islington (bot) on 09 October 2018, 15:21:17 UTC, committed by GitHub on 09 October 2018, 15:21:17 UTC
When Python is built with the intel control-flow protection flags, -mcet -fcf-protection, gdb is not able to read the stack without actually jumping inside the function. This means an extra 'next' command is required to make the $pc (program counter) enter the function and make the stack of the function exposed to gdb. Co-Authored-By: Marcel Plch <gmarcel.plch@gmail.com> (cherry picked from commit 9b7c74ca32d1bec7128d550a9ab1b2ddc7046287) (cherry picked from commit 79d21331e605fdc941f947621846b8563485aab6) Co-authored-by: Victor Stinner <vstinner@redhat.com>
1 parent c4c86fa
Tip revision: 0ce31d340b264a550a3c574e1d6913f4affd4669 authored by Miss Islington (bot) on 09 October 2018, 15:21:17 UTC
bpo-32962: Fix test_gdb failure in debug build with -mcet -fcf-protection -O0 (GH-9656)
bpo-32962: Fix test_gdb failure in debug build with -mcet -fcf-protection -O0 (GH-9656)
Tip revision: 0ce31d3
dict-common.h
#ifndef Py_DICT_COMMON_H
#define Py_DICT_COMMON_H
typedef struct {
/* Cached hash code of me_key. */
Py_hash_t me_hash;
PyObject *me_key;
PyObject *me_value; /* This field is only meaningful for combined tables */
} PyDictKeyEntry;
/* dict_lookup_func() returns index of entry which can be used like DK_ENTRIES(dk)[index].
* -1 when no entry found, -3 when compare raises error.
*/
typedef Py_ssize_t (*dict_lookup_func)
(PyDictObject *mp, PyObject *key, Py_hash_t hash, PyObject **value_addr);
#define DKIX_EMPTY (-1)
#define DKIX_DUMMY (-2) /* Used internally */
#define DKIX_ERROR (-3)
/* See dictobject.c for actual layout of DictKeysObject */
struct _dictkeysobject {
Py_ssize_t dk_refcnt;
/* Size of the hash table (dk_indices). It must be a power of 2. */
Py_ssize_t dk_size;
/* Function to lookup in the hash table (dk_indices):
- lookdict(): general-purpose, and may return DKIX_ERROR if (and
only if) a comparison raises an exception.
- lookdict_unicode(): specialized to Unicode string keys, comparison of
which can never raise an exception; that function can never return
DKIX_ERROR.
- lookdict_unicode_nodummy(): similar to lookdict_unicode() but further
specialized for Unicode string keys that cannot be the <dummy> value.
- lookdict_split(): Version of lookdict() for split tables. */
dict_lookup_func dk_lookup;
/* Number of usable entries in dk_entries. */
Py_ssize_t dk_usable;
/* Number of used entries in dk_entries. */
Py_ssize_t dk_nentries;
/* Actual hash table of dk_size entries. It holds indices in dk_entries,
or DKIX_EMPTY(-1) or DKIX_DUMMY(-2).
Indices must be: 0 <= indice < USABLE_FRACTION(dk_size).
The size in bytes of an indice depends on dk_size:
- 1 byte if dk_size <= 0xff (char*)
- 2 bytes if dk_size <= 0xffff (int16_t*)
- 4 bytes if dk_size <= 0xffffffff (int32_t*)
- 8 bytes otherwise (int64_t*)
Dynamically sized, SIZEOF_VOID_P is minimum. */
char dk_indices[]; /* char is required to avoid strict aliasing. */
/* "PyDictKeyEntry dk_entries[dk_usable];" array follows:
see the DK_ENTRIES() macro */
};
#endif
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