xnu-6153.61.1.tar.gz

[apple/xnu.git] / bsd / sys / stackshot.h

diff --git a/bsd/sys/stackshot.h b/bsd/sys/stackshot.h
index 50a1eb500224a5fa5883b4f3971eabd0c7f883a3..b5c00135c2e415e8d034a99a87879ecda325369b 100644 (file)
--- a/bsd/sys/stackshot.h
+++ b/bsd/sys/stackshot.h
@@ -35,25 +35,21 @@
 
 typedef struct stackshot_config {
        /* Input options */
-       int             sc_pid;                 /* PID to trace, or -1 for the entire system */
-       uint32_t        sc_flags;               /* Stackshot flags */
-       uint64_t        sc_since_timestamp;     /* Get traces of threads that have run since this time (NOT YET SUPPORTED) */
+       int             sc_pid;                 /* PID to trace, or -1 for the entire system */
+       uint32_t        sc_flags;               /* Stackshot flags */
+       uint64_t        sc_delta_timestamp;     /* Retrieve a delta stackshot of system state that has changed since this time */
 
        /* Stackshot results */
-       uint64_t        sc_buffer;              /* Pointer to stackshot buffer */
-       uint32_t        sc_size;                /* Length of the stackshot buffer */
+       uint64_t        sc_buffer;              /* Pointer to stackshot buffer */
+       uint32_t        sc_size;                /* Length of the stackshot buffer */
 
        /* Internals */
-       uint64_t        sc_out_buffer_addr;     /* Location where the kernel should copy the address of the newly mapped buffer in user space */
-       uint64_t        sc_out_size_addr;       /* Location where the kernel should copy the size of the stackshot buffer */
+       uint64_t        sc_out_buffer_addr;     /* Location where the kernel should copy the address of the newly mapped buffer in user space */
+       uint64_t        sc_out_size_addr;       /* Location where the kernel should copy the size of the stackshot buffer */
 } stackshot_config_t;
 
 #ifndef KERNEL
 
-#if !LIBSYSCALL_INTERFACE
-typedef struct stackshot_config stackshot_config_t;
-#endif
-
 stackshot_config_t * stackshot_config_create(void);
 int stackshot_config_set_pid(stackshot_config_t * stackshot_config, int pid);
 int stackshot_config_set_flags(stackshot_config_t * stackshot_config, uint32_t flags);
@@ -61,6 +57,7 @@ int stackshot_capture_with_config(stackshot_config_t * stackshot_config);
 void * stackshot_config_get_stackshot_buffer(stackshot_config_t * stackshot_config);
 uint32_t stackshot_config_get_stackshot_size(stackshot_config_t * stackshot_config);
 int stackshot_config_set_size_hint(stackshot_config_t * stackshot_config, uint32_t suggested_size);
+int stackshot_config_set_delta_timestamp(stackshot_config_t * stackshot_config, uint64_t delta_timestamp);
 int stackshot_config_dealloc_buffer(stackshot_config_t * stackshot_config);
 int stackshot_config_dealloc(stackshot_config_t * stackshot_config);