Merge branch 'master' of ssh://parabolagnulinux.org:1863/srv/git/abslibre

1 files changed, 29 insertions, 0 deletions

diff --git a/cross/cross-mips64el-unknown-linux-gnu-glibc-headers/glibc-2.15-arena.patch b/cross/cross-mips64el-unknown-linux-gnu-glibc-headers/glibc-2.15-arena.patch
new file mode 100644
index 000000000..46f52e98d
--- /dev/null
+++ b/cross/cross-mips64el-unknown-linux-gnu-glibc-headers/glibc-2.15-arena.patch
@@ -0,0 +1,29 @@
+diff --git a/malloc/arena.c b/malloc/arena.c
+index d3cf4b9..b1c9469 100644
+--- a/malloc/arena.c
++++ b/malloc/arena.c
+@@ -828,7 +828,7 @@ arena_get2(mstate a_tsd, size_t size)
+ 	{
+ 	  if (mp_.arena_max != 0)
+ 	    narenas_limit = mp_.arena_max;
+-	  else
++	  else if (narenas > mp_.arena_test)
+ 	    {
+ 	      int n  = __get_nprocs ();
+ 
+@@ -842,7 +842,14 @@ arena_get2(mstate a_tsd, size_t size)
+ 	}
+     repeat:;
+       size_t n = narenas;
+-      if (__builtin_expect (n <= mp_.arena_test || n < narenas_limit, 0))
++      /* NB: the following depends on the fact that (size_t)0 - 1 is a
++	 very large number and that the underflow is OK.  If arena_max
++	 is set the value of arena_test is irrelevant.  If arena_test
++	 is set but narenas is not yet larger or equal to arena_test
++	 narenas_limit is 0.  There is no possibility for narenas to
++	 be too big for the test to always fail since there is not
++	 enough address space to create that many arenas.  */
++      if (__builtin_expect (n <= narenas_limit - 1, 0))
+ 	{
+ 	  if (catomic_compare_and_exchange_bool_acq (&narenas, n + 1, n))
+ 	    goto repeat;