diff options
| author | Michael Ellerman <[email protected]> | 2016-11-15 18:02:32 +1100 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2016-11-15 19:26:06 +0100 |
| commit | c55d240003ae253d3057dcf93510c9bd64bb7a09 (patch) | |
| tree | c80233dfdea2ba01b6a627fbe9cbc52a45df203c /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | 967b274e02e18c9fbb4d19b96a89bd0afbc77b7a (diff) | |
lkdtm: Prevent the compiler from optimising lkdtm_CORRUPT_STACK()
At least on powerpc with GCC 6, the compiler is smart enough to optimise
lkdtm_CORRUPT_STACK() into an empty function that just returns.
If we print the buffer after we've written to it that prevents the
compiler from optimising away data and the memset().
Signed-off-by: Michael Ellerman <[email protected]>
Acked-by: Kees Cook <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions