diff options
| author | torvald <torvald@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-02-14 13:13:56 +0000 |
|---|---|---|
| committer | torvald <torvald@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-02-14 13:13:56 +0000 |
| commit | c625f5685bcb1609fbfde7535e90de262fedd91f (patch) | |
| tree | 3f757ed98c58cd9c6de39c80072caa8625239a50 /libitm | |
| parent | 7ce78e23cfb1254af0750dbb9393e1b191da3244 (diff) | |
libitm: Add xcalloc.
libitm/
* util.cc (GTM::xcalloc): New.
* common.h (GTM::xcalloc): Declare.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@184210 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libitm')
| -rw-r--r-- | libitm/ChangeLog | 5 | ||||
| -rw-r--r-- | libitm/common.h | 2 | ||||
| -rw-r--r-- | libitm/util.cc | 12 |
3 files changed, 19 insertions, 0 deletions
diff --git a/libitm/ChangeLog b/libitm/ChangeLog index decdad3c68c..130c9efbd85 100644 --- a/libitm/ChangeLog +++ b/libitm/ChangeLog @@ -1,3 +1,8 @@ +2012-02-14 Torvald Riegel <triegel@redhat.com> + + * util.cc (GTM::xcalloc): New. + * common.h (GTM::xcalloc): Declare. + 2012-02-14 Eric Botcazou <ebotcazou@adacore.com> * config/sparc/target.h (cpu_relax): Read from CC register. diff --git a/libitm/common.h b/libitm/common.h index 14d0efb40ba..b1ef2d4e63a 100644 --- a/libitm/common.h +++ b/libitm/common.h @@ -54,6 +54,8 @@ namespace GTM HIDDEN { // cache lines that are not shared with any object used by another thread. extern void * xmalloc (size_t s, bool separate_cl = false) __attribute__((malloc, nothrow)); +extern void * xcalloc (size_t s, bool separate_cl = false) + __attribute__((malloc, nothrow)); extern void * xrealloc (void *p, size_t s, bool separate_cl = false) __attribute__((malloc, nothrow)); diff --git a/libitm/util.cc b/libitm/util.cc index afd37e41731..48a1bf88d7c 100644 --- a/libitm/util.cc +++ b/libitm/util.cc @@ -71,6 +71,18 @@ xmalloc (size_t size, bool separate_cl) } void * +xcalloc (size_t size, bool separate_cl) +{ + // TODO Use posix_memalign if separate_cl is true, or some other allocation + // method that will avoid sharing cache lines with data used by other + // threads. + void *r = calloc (1, size); + if (r == 0) + GTM_fatal ("Out of memory allocating %lu bytes", (unsigned long) size); + return r; +} + +void * xrealloc (void *old, size_t size, bool separate_cl) { // TODO Use posix_memalign if separate_cl is true, or some other allocation |