From 222f23f508a8d778f56eddef14752dfd26d225b4 Mon Sep 17 00:00:00 2001 From: "Dr. David Alan Gilbert" Date: Mon, 12 Dec 2011 16:37:31 +0100 Subject: tcg/arm: remove fixed map code buffer restriction On ARM, don't map the code buffer at a fixed location, and fix up the call/goto tcg routines to let it do long jumps. Mapping the code buffer at a fixed address could sometimes result in it being mapped over the top of the heap with pretty random results. Signed-off-by: Dr. David Alan Gilbert Signed-off-by: Andrzej Zaborowski --- exec.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'exec.c') diff --git a/exec.c b/exec.c index d8b2180170..4f79cbb27e 100644 --- a/exec.c +++ b/exec.c @@ -497,9 +497,7 @@ static void code_gen_alloc(unsigned long tb_size) if (code_gen_buffer_size > (512 * 1024 * 1024)) code_gen_buffer_size = (512 * 1024 * 1024); #elif defined(__arm__) - /* Map the buffer below 32M, so we can use direct calls and branches */ - flags |= MAP_FIXED; - start = (void *) 0x01000000UL; + /* Keep the buffer no bigger than 16GB to branch between blocks */ if (code_gen_buffer_size > 16 * 1024 * 1024) code_gen_buffer_size = 16 * 1024 * 1024; #elif defined(__s390x__) -- cgit 1.4.1