Patchwork [2/5] exec: Don't make DEFAULT_CODE_GEN_BUFFER_SIZE too large

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Submitter Richard Henderson
Date Oct. 16, 2012, 7:30 a.m.
Message ID <1350372614-30041-3-git-send-email-rth@twiddle.net>
Download mbox | patch
Permalink /patch/191751/
State New
Headers show

Comments

Richard Henderson - Oct. 16, 2012, 7:30 a.m.
For ARM we cap the buffer size to 16MB.  Do not allocate 32MB in that case.

Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 exec.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

Patch

diff --git a/exec.c b/exec.c
index eecae2f..6c0b2d7 100644
--- a/exec.c
+++ b/exec.c
@@ -529,7 +529,11 @@  bool memory_region_is_unassigned(MemoryRegion *mr)
 # define MAX_CODE_GEN_BUFFER_SIZE  ((size_t)-1)
 #endif
 
-#define DEFAULT_CODE_GEN_BUFFER_SIZE (32u * 1024 * 1024)
+#define DEFAULT_CODE_GEN_BUFFER_SIZE_1 (32u * 1024 * 1024)
+
+#define DEFAULT_CODE_GEN_BUFFER_SIZE \
+  (DEFAULT_CODE_GEN_BUFFER_SIZE_1 < MAX_CODE_GEN_BUFFER_SIZE \
+   ? DEFAULT_CODE_GEN_BUFFER_SIZE_1 : MAX_CODE_GEN_BUFFER_SIZE)
 
 static inline size_t size_code_gen_buffer(size_t tb_size)
 {