diff options
| author | Torvald Riegel <triegel@redhat.com> | 2012-02-14 13:13:56 +0000 |
|---|---|---|
| committer | Torvald Riegel <torvald@gcc.gnu.org> | 2012-02-14 13:13:56 +0000 |
| commit | 7d33bcb73866d5310b4eb190172240bcb71f51f6 (patch) | |
| tree | 3f757ed98c58cd9c6de39c80072caa8625239a50 /libitm | |
| parent | dd552284fd817c9d946598a7b647f9e67753bed6 (diff) | |
| download | gcc-7d33bcb73866d5310b4eb190172240bcb71f51f6.zip gcc-7d33bcb73866d5310b4eb190172240bcb71f51f6.tar.gz gcc-7d33bcb73866d5310b4eb190172240bcb71f51f6.tar.bz2 | |
libitm: Add xcalloc.
libitm/
* util.cc (GTM::xcalloc): New.
* common.h (GTM::xcalloc): Declare.
From-SVN: r184210
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 decdad3..130c9ef 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 14d0efb4..b1ef2d4 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 afd37e4..48a1bf8 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 |