From 7d33bcb73866d5310b4eb190172240bcb71f51f6 Mon Sep 17 00:00:00 2001 From: Torvald Riegel Date: Tue, 14 Feb 2012 13:13:56 +0000 Subject: libitm: Add xcalloc. libitm/ * util.cc (GTM::xcalloc): New. * common.h (GTM::xcalloc): Declare. From-SVN: r184210 --- libitm/ChangeLog | 5 +++++ libitm/common.h | 2 ++ libitm/util.cc | 12 ++++++++++++ 3 files changed, 19 insertions(+) (limited to 'libitm') 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 + + * util.cc (GTM::xcalloc): New. + * common.h (GTM::xcalloc): Declare. + 2012-02-14 Eric Botcazou * 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 -- cgit v1.1