diff options
Diffstat (limited to 'src/target/target.h')
| -rw-r--r-- | src/target/target.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/target/target.h b/src/target/target.h index c971f18b..1bbf40f0 100644 --- a/src/target/target.h +++ b/src/target/target.h @@ -26,6 +26,8 @@ #ifndef TARGET_H #define TARGET_H +#include <stddef.h> + #include "breakpoints.h" #include "algorithm.h" #include "command.h" @@ -34,6 +36,19 @@ struct reg_s; struct trace_s; struct command_context_s; + +/** + * Cast a member of a structure out to the containing structure. + * @param ptr The pointer to the member. + * @param type The type of the container struct this is embedded in. + * @param member The name of the member within the struct. + * + * This is a mechanism which is used throughout the Linux kernel. + */ +#define container_of(ptr, type, member) ({ \ + const typeof( ((type *)0)->member ) *__mptr = (ptr); \ + (type *)( (char *)__mptr - offsetof(type,member) );}) + /* * TARGET_UNKNOWN = 0: we don't know anything about the target yet * TARGET_RUNNING = 1: the target is executing user code |