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| author | Dr. David Alan Gilbert <david.gilbert@linaro.org> | 2011-12-12 16:37:31 +0100 |
|---|---|---|
| committer | Andrzej Zaborowski <andrew.zaborowski@intel.com> | 2011-12-14 21:58:18 +0100 |
| commit | 222f23f508a8d778f56eddef14752dfd26d225b4 (patch) | |
| tree | c6a8387c390e80715bbd3bd6f1e92e2d1215915f /exec.c | |
| parent | 23ce84b1bbae9dd244ad8cd77a1ac30fdac07606 (diff) | |
| download | focaccia-qemu-222f23f508a8d778f56eddef14752dfd26d225b4.tar.gz focaccia-qemu-222f23f508a8d778f56eddef14752dfd26d225b4.zip | |
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 <david.gilbert@linaro.org> Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
Diffstat (limited to 'exec.c')
| -rw-r--r-- | exec.c | 4 |
1 files changed, 1 insertions, 3 deletions
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__) |