| Message ID | 1434616965-5157-3-git-send-email-patrik.jakobsson@linux.intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/defs.h b/defs.h index c02f810..5b0670e 100644 --- a/defs.h +++ b/defs.h @@ -266,6 +266,13 @@ struct tcb { int u_error; /* Error code */ long scno; /* System call number */ long u_arg[MAX_ARGS]; /* System call arguments */ + + /* + * Private data for the decoding functions of the syscall. TCB core does + * _not_ handle allocation / deallocation of this data. + */ + void *priv_data; + #if defined(LINUX_MIPSN32) || defined(X32) long long ext_arg[MAX_ARGS]; long long u_lrval; /* long long return value */
This field can be used by the decode functions of a syscall. The main usecase for now is to allow storing the driver name for drm devices across the lifetime of a trace control block. This allows us to do the driver identification once and reuse the information in all the decode stages of the ioctl. * defs.h: Add private data field in struct tcb Signed-off-by: Patrik Jakobsson <patrik.jakobsson@linux.intel.com> --- defs.h | 7 +++++++ 1 file changed, 7 insertions(+)