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Diffstat (limited to 'kern/pc_sample.h')
| -rw-r--r-- | kern/pc_sample.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/kern/pc_sample.h b/kern/pc_sample.h new file mode 100644 index 0000000..02891e0 --- /dev/null +++ b/kern/pc_sample.h @@ -0,0 +1,90 @@ +/* + * Mach Operating System + * Copyright (c) 1993 Carnegie Mellon University + * All Rights Reserved. + * + * Permission to use, copy, modify and distribute this software and its + * documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR + * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie Mellon + * the rights to redistribute these changes. + */ +/* + * HISTORY + * $Log: pc_sample.h,v $ + * Revision 1.1.1.1 1996/10/30 01:38:13 thomas + * Imported from UK22 + * + * Revision 1.1 1994/11/02 02:24:15 law + * Initial revision + * + * Revision 2.2 93/11/17 19:06:01 dbg + * Moved kernel internal definitions here from mach/pc_sample.h. + * [93/09/24 dbg] + * + */ + +/* + * Kernel definitions for PC sampling. + */ +#ifndef _KERN_PC_SAMPLE_H_ +#define _KERN_PC_SAMPLE_H_ + +#include <mach/pc_sample.h> +#include <mach/machine/vm_types.h> +#include <kern/kern_types.h> +#include <kern/macro_help.h> + +/* + * Control structure for sampling, included in + * threads and tasks. If sampletypes is 0, no + * sampling is done. + */ + +struct sample_control { + vm_offset_t buffer; + unsigned int seqno; + sampled_pc_flavor_t sampletypes; +}; + +typedef struct sample_control sample_control_t; + +/* + * Routines to take PC samples. + */ +extern void take_pc_sample( + thread_t thread, + sample_control_t *cp, + sampled_pc_flavor_t flavor); + +/* + * Macro to do quick flavor check for sampling, + * on both threads and tasks. + */ +#define take_pc_sample_macro(thread, flavor) \ + MACRO_BEGIN \ + task_t task; \ + \ + if ((thread)->pc_sample.sampletypes & (flavor)) \ + take_pc_sample((thread), &(thread)->pc_sample, (flavor)); \ + \ + task = (thread)->task; \ + if (task->pc_sample.sampletypes & (flavor)) \ + take_pc_sample((thread), &task->pc_sample, (flavor)); \ + MACRO_END + +#endif /* _KERN_PC_SAMPLE_H_ */ |