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author | Yao Qi <yao@codesourcery.com> | 2012-04-19 05:58:52 +0000 |
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committer | Yao Qi <yao@codesourcery.com> | 2012-04-19 05:58:52 +0000 |
commit | aad9eab9f2f44b585531edd4f403ad2da632e44a (patch) | |
tree | 775eb8bb5c25ce6504ecf21df6498bb56cca7b0c /gdb/vec.c | |
parent | 3e10640f3c843093ec9a8e95a9cd5c1b81dc156f (diff) | |
download | fsf-binutils-gdb-aad9eab9f2f44b585531edd4f403ad2da632e44a.zip fsf-binutils-gdb-aad9eab9f2f44b585531edd4f403ad2da632e44a.tar.gz fsf-binutils-gdb-aad9eab9f2f44b585531edd4f403ad2da632e44a.tar.bz2 |
gdb:
* Makefile.in (SFILES): Add common/vec.c and remove vec.c.
(vec.o): New rule.
* vec.c: Move it ...
* common/vec.c: ... here.
* vec.h: Move it ...
* common/vec.h: ... here.
gdb/gdbserver:
* Makefile.in (SFILES): Add common/vec.c.
(OBS): Add vec.o.
(vec.o): New rule.
Diffstat (limited to 'gdb/vec.c')
-rw-r--r-- | gdb/vec.c | 118 |
1 files changed, 0 insertions, 118 deletions
diff --git a/gdb/vec.c b/gdb/vec.c deleted file mode 100644 index 3793a6a..0000000 --- a/gdb/vec.c +++ /dev/null @@ -1,118 +0,0 @@ -/* Vector API for GDB. - Copyright (C) 2004-2012 Free Software Foundation, Inc. - Contributed by Nathan Sidwell <nathan@codesourcery.com> - - 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/>. */ - -#include "defs.h" -#include "vec.h" - -struct vec_prefix -{ - unsigned num; - unsigned alloc; - void *vec[1]; -}; - -/* Calculate the new ALLOC value, making sure that abs(RESERVE) slots - are free. If RESERVE < 0 grow exactly, otherwise grow - exponentially. */ - -static inline unsigned -calculate_allocation (const struct vec_prefix *pfx, int reserve) -{ - unsigned alloc = 0; - unsigned num = 0; - - if (pfx) - { - alloc = pfx->alloc; - num = pfx->num; - } - else if (!reserve) - /* If there's no prefix, and we've not requested anything, then we - will create a NULL vector. */ - return 0; - - /* We must have run out of room. */ - gdb_assert (alloc - num < (unsigned)(reserve < 0 ? -reserve : reserve)); - - if (reserve < 0) - /* Exact size. */ - alloc = num + -reserve; - else - { - /* Exponential growth. */ - if (!alloc) - alloc = 4; - else if (alloc < 16) - /* Double when small. */ - alloc = alloc * 2; - else - /* Grow slower when large. */ - alloc = (alloc * 3 / 2); - - /* If this is still too small, set it to the right size. */ - if (alloc < num + reserve) - alloc = num + reserve; - } - return alloc; -} - -/* Ensure there are at least abs(RESERVE) free slots in VEC. If - RESERVE < 0 grow exactly, else grow exponentially. As a special - case, if VEC is NULL, and RESERVE is 0, no vector will be created. */ - -void * -vec_p_reserve (void *vec, int reserve) -{ - return vec_o_reserve (vec, reserve, - offsetof (struct vec_prefix, vec), sizeof (void *)); -} - -/* As vec_p_reserve, but for object vectors. The vector's trailing - array is at VEC_OFFSET offset and consists of ELT_SIZE sized - elements. */ - -void * -vec_o_reserve (void *vec, int reserve, size_t vec_offset, size_t elt_size) -{ - struct vec_prefix *pfx = vec; - unsigned alloc = calculate_allocation (pfx, reserve); - - if (!alloc) - return NULL; - - vec = xrealloc (vec, vec_offset + alloc * elt_size); - ((struct vec_prefix *)vec)->alloc = alloc; - if (!pfx) - ((struct vec_prefix *)vec)->num = 0; - - return vec; -} - -#if 0 -/* Example uses. */ -DEF_VEC_I (int); -typedef struct X -{ - int i; -} obj_t; -typedef obj_t *ptr_t; - -DEF_VEC_P (ptr_t); -DEF_VEC_O (obj_t); -#endif |