Slim down static binaries by avoiding stdio.
It's okay for a program to choose to drag in stdio, but it's unfortunate
if even the minimal "int main() { return 42; }" drags in stdio...
This brings the minimal static binary on ARM down from 78KiB to 46KiB.
Given that we don't have a separate -lpthread it's not obvious to me that
we can shave this down any further. I'm not sure whether this is a worthwhile
change for that reason. (And the fact that dynamic binaries, the usual case,
are unaffected either way.)
Change-Id: I02f91dcff37d14354314a30b72fed2563f431c88
diff --git a/libc/bionic/dlmalloc.h b/libc/bionic/dlmalloc.h
index e065687..46efa91 100644
--- a/libc/bionic/dlmalloc.h
+++ b/libc/bionic/dlmalloc.h
@@ -32,6 +32,8 @@
#define USE_SPIN_LOCKS 0
#define DEFAULT_MMAP_THRESHOLD (64U * 1024U)
+#define malloc_getpagesize getpagesize()
+
/* Export two symbols used by the VM. */
__BEGIN_DECLS
int dlmalloc_trim(size_t) __LIBC_ABI_PUBLIC__;