lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-12-24 17:51:17 +03:00
Code Activity

Jakub Jelinek <jakub@redhat.com>

Browse Source 
Implement reference counting of scope records.
	* elf/dl-close.c (_dl_close): Remove all scopes from removed objects
	from the list in objects which remain.  Always allocate new scope
	record.
	* elf/dl-open.c (dl_open_worker): When growing array for scopes,
	don't resize, allocate a new one.
	* elf/dl-runtime.c: Update reference counters before using a scope
	array.
	* elf/dl-sym.c: Likewise.
	* elf/dl-libc.c: Adjust for l_scope name change.
	* elf/dl-load.c: Likewise.
	* elf/dl-object.c: Likewise.
	* elf/rtld.c: Likewise.
	* include/link.h: Inlcude <rtld-lowlevel.h>.  Define struct
	r_scoperec.  Replace r_scope with pointer to r_scoperec structure.
	Add l_scoperec_lock.
	* sysdeps/generic/ldsodefs.h: Include <rtld-lowlevel.h>.
	* sysdeps/generic/rtld-lowlevel.h: New file.

	* include/atomic.h: Rename atomic_and to atomic_and_val and
	atomic_or to atomic_or_val.  Define new macros atomic_and and
	atomic_or which do not return values.
	* sysdeps/x86_64/bits/atomic.h: Define atomic_and and atomic_or.
	Various cleanups.
	* sysdeps/i386/i486/bits/atomic.h: Likewise.
This commit is contained in:
Ulrich Drepper
2006-10-10 00:51:29 +00:00
parent 7484f797e4
commit 1100f84983
18 changed files with 5651 additions and 4582 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
include/atomic.h
View File

@@ -273,9 +273,27 @@
__oldval & __mask; })
#endif
/* Atomically *mem &= mask and return the old value of *mem. */
/* Atomically *mem &= mask. */
#ifndef atomic_and
# define atomic_and(mem, mask) \
do { \
__typeof (*(mem)) __oldval; \
__typeof (mem) __memp = (mem); \
__typeof (*(mem)) __mask = (mask); \
\
do \
__oldval = (*__memp); \
while (__builtin_expect (atomic_compare_and_exchange_bool_acq (__memp, \
__oldval \
& __mask, \
__oldval), \
0)); \
} while (0)
#endif
/* Atomically *mem &= mask and return the old value of *mem. */
#ifndef atomic_and_val
# define atomic_and_val(mem, mask) \
({ __typeof (*(mem)) __oldval; \
__typeof (mem) __memp = (mem); \
__typeof (*(mem)) __mask = (mask); \
@@ -294,6 +312,24 @@
/* Atomically *mem |= mask and return the old value of *mem. */
#ifndef atomic_or
# define atomic_or(mem, mask) \
do { \
__typeof (*(mem)) __oldval; \
__typeof (mem) __memp = (mem); \
__typeof (*(mem)) __mask = (mask); \
\
do \
__oldval = (*__memp); \
while (__builtin_expect (atomic_compare_and_exchange_bool_acq (__memp, \
__oldval \
| __mask, \
__oldval), \
0)); \
} while (0)
#endif
/* Atomically *mem |= mask and return the old value of *mem. */
#ifndef atomic_or_val
# define atomic_or_val(mem, mask) \
({ __typeof (*(mem)) __oldval; \
__typeof (mem) __memp = (mem); \
__typeof (*(mem)) __mask = (mask); \