27 #include <sys/dtrace.h>
28 #include <sys/cmn_err.h>
29 #include <sys/tnf.h>
30 #include <sys/atomic.h>
31 #include <sys/prsystm.h>
32 #include <sys/modctl.h>
33 #include <sys/aio_impl.h>
34
35 #ifdef __sparc
36 #include <sys/privregs.h>
37 #endif
38
39 void (*dtrace_cpu_init)(processorid_t);
40 void (*dtrace_modload)(struct modctl *);
41 void (*dtrace_modunload)(struct modctl *);
42 void (*dtrace_helpers_cleanup)(void);
43 void (*dtrace_helpers_fork)(proc_t *, proc_t *);
44 void (*dtrace_cpustart_init)(void);
45 void (*dtrace_cpustart_fini)(void);
46 void (*dtrace_cpc_fire)(uint64_t);
47
48 void (*dtrace_debugger_init)(void);
49 void (*dtrace_debugger_fini)(void);
50
51 dtrace_vtime_state_t dtrace_vtime_active = 0;
52 dtrace_cacheid_t dtrace_predcache_id = DTRACE_CACHEIDNONE + 1;
53
54 /*
55 * dtrace_cpc_in_use usage statement: this global variable is used by the cpc
56 * hardware overflow interrupt handler and the kernel cpc framework to check
57 * whether or not the DTrace cpc provider is currently in use. The variable is
58 * set before counters are enabled with the first enabling and cleared when
59 * the last enabling is disabled. Its value at any given time indicates the
60 * number of active dcpc based enablings. The global 'kcpc_cpuctx_lock' rwlock
61 * is held during initial setting to protect races between kcpc_open() and the
62 * first enabling. The locking provided by the DTrace subsystem, the kernel
63 * cpc framework and the cpu management framework protect consumers from race
64 * conditions on enabling and disabling probes.
65 */
66 uint32_t dtrace_cpc_in_use = 0;
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27 #include <sys/dtrace.h>
28 #include <sys/cmn_err.h>
29 #include <sys/tnf.h>
30 #include <sys/atomic.h>
31 #include <sys/prsystm.h>
32 #include <sys/modctl.h>
33 #include <sys/aio_impl.h>
34
35 #ifdef __sparc
36 #include <sys/privregs.h>
37 #endif
38
39 void (*dtrace_cpu_init)(processorid_t);
40 void (*dtrace_modload)(struct modctl *);
41 void (*dtrace_modunload)(struct modctl *);
42 void (*dtrace_helpers_cleanup)(void);
43 void (*dtrace_helpers_fork)(proc_t *, proc_t *);
44 void (*dtrace_cpustart_init)(void);
45 void (*dtrace_cpustart_fini)(void);
46 void (*dtrace_cpc_fire)(uint64_t);
47 void (*dtrace_closef)(void);
48
49 void (*dtrace_debugger_init)(void);
50 void (*dtrace_debugger_fini)(void);
51
52 dtrace_vtime_state_t dtrace_vtime_active = 0;
53 dtrace_cacheid_t dtrace_predcache_id = DTRACE_CACHEIDNONE + 1;
54
55 /*
56 * dtrace_cpc_in_use usage statement: this global variable is used by the cpc
57 * hardware overflow interrupt handler and the kernel cpc framework to check
58 * whether or not the DTrace cpc provider is currently in use. The variable is
59 * set before counters are enabled with the first enabling and cleared when
60 * the last enabling is disabled. Its value at any given time indicates the
61 * number of active dcpc based enablings. The global 'kcpc_cpuctx_lock' rwlock
62 * is held during initial setting to protect races between kcpc_open() and the
63 * first enabling. The locking provided by the DTrace subsystem, the kernel
64 * cpc framework and the cpu management framework protect consumers from race
65 * conditions on enabling and disabling probes.
66 */
67 uint32_t dtrace_cpc_in_use = 0;
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