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| author | emellor@leeni.uk.xensource.com <emellor@leeni.uk.xensource.com> | 2005-11-22 16:31:16 +0100 |
|---|---|---|
| committer | emellor@leeni.uk.xensource.com <emellor@leeni.uk.xensource.com> | 2005-11-22 16:31:16 +0100 |
| commit | a22292f2bb59bda113d820fa7da5629408fac98d (patch) | |
| tree | c5e423a69d01967f816f3d6dc761bff77e53bcce /tools/libxc/xc_gnttab.c | |
| parent | 10edfe8abf0512c380bc2bb4d79af9460558f815 (diff) | |
| download | xen-a22292f2bb59bda113d820fa7da5629408fac98d.tar.gz xen-a22292f2bb59bda113d820fa7da5629408fac98d.tar.bz2 xen-a22292f2bb59bda113d820fa7da5629408fac98d.zip | |
Make it possible to run valgrind on code linked with the libxc libraries.
Valgrind cannot see when a hypercall has initialised entries in a data
structure, so appropriate memsets have been placed before using dom0_op_t,
privcmd_hypercall_t, and a couple of miscellaneous blocks passed into this
layer. This initialises the block so that valgrind considers it to be valid,
but the data therein will be immediately overwritten by the hypercall, all
being well.
These changes are semantically neutral if -DVALGRIND is not set.
Signed-off-by: Ewan Mellor <ewan@xensource.com>
Diffstat (limited to 'tools/libxc/xc_gnttab.c')
| -rw-r--r-- | tools/libxc/xc_gnttab.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/libxc/xc_gnttab.c b/tools/libxc/xc_gnttab.c index fd9df4c1b2..54fb40e6e1 100644 --- a/tools/libxc/xc_gnttab.c +++ b/tools/libxc/xc_gnttab.c @@ -17,7 +17,7 @@ do_gnttab_op(int xc_handle, unsigned long count) { int ret = -1; - privcmd_hypercall_t hypercall; + DECLARE_HYPERCALL; hypercall.op = __HYPERVISOR_grant_table_op; hypercall.arg[0] = cmd; |