diff options
Diffstat (limited to 'gdb/gdb_obstack.h')
-rw-r--r-- | gdb/gdb_obstack.h | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/gdb/gdb_obstack.h b/gdb/gdb_obstack.h deleted file mode 100644 index 5e870cb..0000000 --- a/gdb/gdb_obstack.h +++ /dev/null @@ -1,156 +0,0 @@ -/* Obstack wrapper for GDB. - - Copyright (C) 2002-2022 Free Software Foundation, Inc. - - This file is part of GDB. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. */ - -#if !defined (GDB_OBSTACK_H) -#define GDB_OBSTACK_H 1 - -#include "obstack.h" - -/* Utility macros - wrap obstack alloc into something more robust. */ - -template <typename T> -static inline T* -obstack_zalloc (struct obstack *ob) -{ - static_assert (IsMallocable<T>::value, "Trying to use OBSTACK_ZALLOC with a \ -non-POD data type. Use obstack_new instead."); - return ((T *) memset (obstack_alloc (ob, sizeof (T)), 0, sizeof (T))); -} - -#define OBSTACK_ZALLOC(OBSTACK,TYPE) obstack_zalloc<TYPE> ((OBSTACK)) - -template <typename T> -static inline T * -obstack_calloc (struct obstack *ob, size_t number) -{ - static_assert (IsMallocable<T>::value, "Trying to use OBSTACK_CALLOC with a \ -non-POD data type. Use obstack_new instead."); - return ((T *) memset (obstack_alloc (ob, number * sizeof (T)), 0, - number * sizeof (T))); -} - -#define OBSTACK_CALLOC(OBSTACK,NUMBER,TYPE) \ - obstack_calloc<TYPE> ((OBSTACK), (NUMBER)) - -/* Allocate an object on OB and call its constructor. */ - -template <typename T, typename... Args> -static inline T* -obstack_new (struct obstack *ob, Args&&... args) -{ - T* object = (T *) obstack_alloc (ob, sizeof (T)); - object = new (object) T (std::forward<Args> (args)...); - return object; -} - -/* Unless explicitly specified, GDB obstacks always use xmalloc() and - xfree(). */ -/* Note: ezannoni 2004-02-09: One could also specify the allocation - functions using a special init function for each obstack, - obstack_specify_allocation. However we just use obstack_init and - let these defines here do the job. While one could argue the - superiority of one approach over the other, we just chose one - throughout. */ - -#define obstack_chunk_alloc xmalloc -#define obstack_chunk_free xfree - -#define obstack_grow_str(OBSTACK,STRING) \ - obstack_grow (OBSTACK, STRING, strlen (STRING)) -#define obstack_grow_str0(OBSTACK,STRING) \ - obstack_grow0 (OBSTACK, STRING, strlen (STRING)) - -#define obstack_grow_wstr(OBSTACK, WSTRING) \ - obstack_grow (OBSTACK, WSTRING, sizeof (gdb_wchar_t) * gdb_wcslen (WSTRING)) - -/* Concatenate NULL terminated variable argument list of `const char - *' strings; return the new string. Space is found in the OBSTACKP. - Argument list must be terminated by a sentinel expression `(char *) - NULL'. */ - -extern char *obconcat (struct obstack *obstackp, ...) ATTRIBUTE_SENTINEL; - -/* Duplicate STRING, returning an equivalent string that's allocated on the - obstack OBSTACKP. */ - -static inline char * -obstack_strdup (struct obstack *obstackp, const char *string) -{ - return (char *) obstack_copy0 (obstackp, string, strlen (string)); -} - -/* Duplicate STRING, returning an equivalent string that's allocated on the - obstack OBSTACKP. */ - -static inline char * -obstack_strdup (struct obstack *obstackp, const std::string &string) -{ - return (char *) obstack_copy0 (obstackp, string.c_str (), - string.size ()); -} - -/* Duplicate the first N characters of STRING, returning a - \0-terminated string that's allocated on the obstack OBSTACKP. - Note that exactly N characters are copied, even if STRING is - shorter. */ - -static inline char * -obstack_strndup (struct obstack *obstackp, const char *string, size_t n) -{ - return (char *) obstack_copy0 (obstackp, string, n); -} - -/* An obstack that frees itself on scope exit. */ -struct auto_obstack : obstack -{ - auto_obstack () - { obstack_init (this); } - - ~auto_obstack () - { obstack_free (this, NULL); } - - DISABLE_COPY_AND_ASSIGN (auto_obstack); - - /* Free all memory in the obstack but leave it valid for further - allocation. */ - void clear () - { obstack_free (this, obstack_base (this)); } -}; - -/* Objects are allocated on obstack instead of heap. */ - -struct allocate_on_obstack -{ - allocate_on_obstack () = default; - - void* operator new (size_t size, struct obstack *obstack) - { - return obstack_alloc (obstack, size); - } - - void* operator new[] (size_t size, struct obstack *obstack) - { - return obstack_alloc (obstack, size); - } - - void operator delete (void *memory) {} - void operator delete[] (void *memory) {} -}; - -#endif |