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| author | Richard Henderson | 2015-09-22 22:01:15 +0200 |
|---|---|---|
| committer | Richard Henderson | 2015-10-07 11:36:53 +0200 |
| commit | b125f9dc7bd68cd4c57189db4da83b0620b28a72 (patch) | |
| tree | 8d2b7a06e64121738343a3abebb5070b64f4ff21 /linux-user/elfload.c | |
| parent | tcg: Allocate a guard page after code_gen_buffer (diff) | |
| download | qemu-b125f9dc7bd68cd4c57189db4da83b0620b28a72.tar.gz qemu-b125f9dc7bd68cd4c57189db4da83b0620b28a72.tar.xz qemu-b125f9dc7bd68cd4c57189db4da83b0620b28a72.zip | |
tcg: Check for overflow via highwater mark
We currently pre-compute an worst case code size for any TB, which
works out to be 122kB. Since the average TB size is near 1kB, this
wastes quite a lot of storage.
Instead, check for overflow in between generating code for each opcode.
The overhead of the check isn't measurable and wastage is minimized.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'linux-user/elfload.c')
0 files changed, 0 insertions, 0 deletions