Restore --enable-ivsalloc.
However, unlike before it was removed do not force --enable-ivsalloc
when Darwin zone allocator integration is enabled, since the zone
allocator code uses ivsalloc() regardless of whether
malloc_usable_size() and sallocx() do.
This resolves #211.
diff --git a/INSTALL b/INSTALL
index 517fe02..cd760ca 100644
--- a/INSTALL
+++ b/INSTALL
@@ -92,6 +92,7 @@
--enable-debug
Enable assertions and validation code. This incurs a substantial
performance hit, but is very useful during application development.
+ Implies --enable-ivsalloc.
--enable-code-coverage
Enable code coverage support, for use during jemalloc test development.
@@ -110,6 +111,11 @@
Disable statistics gathering functionality. See the "opt.stats_print"
option documentation for usage details.
+--enable-ivsalloc
+ Enable validation code, which verifies that pointers reside within
+ jemalloc-owned chunks before dereferencing them. This incurs a minor
+ performance hit.
+
--enable-prof
Enable heap profiling and leak detection functionality. See the "opt.prof"
option documentation for usage details. When enabled, there are several