minix/include/minix/btrace.h
Ben Gras 2fe8fb192f Full switch to clang/ELF. Drop ack. Simplify.
There is important information about booting non-ack images in
docs/UPDATING. ack/aout-format images can't be built any more, and
booting clang/ELF-format ones is a little different. Updating to the
new boot monitor is recommended.

Changes in this commit:

	. drop boot monitor -> allowing dropping ack support
	. facility to copy ELF boot files to /boot so that old boot monitor
	  can still boot fairly easily, see UPDATING
	. no more ack-format libraries -> single-case libraries
	. some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases
	. drop several ack toolchain commands, but not all support
	  commands (e.g. aal is gone but acksize is not yet).
	. a few libc files moved to netbsd libc dir
	. new /bin/date as minix date used code in libc/
	. test compile fix
	. harmonize includes
	. /usr/lib is no longer special: without ack, /usr/lib plays no
	  kind of special bootstrapping role any more and bootstrapping
	  is done exclusively through packages, so releases depend even
	  less on the state of the machine making them now.
	. rename nbsd_lib* to lib*
	. reduce mtree
2012-02-14 14:52:02 +01:00

41 lines
938 B
C

#ifndef _MINIX_BTRACE_H
#define _MINIX_BTRACE_H
/* Control directives. */
enum {
BTCTL_START,
BTCTL_STOP
};
/* Request codes. */
enum {
BTREQ_OPEN,
BTREQ_CLOSE,
BTREQ_READ,
BTREQ_WRITE,
BTREQ_GATHER,
BTREQ_SCATTER,
BTREQ_IOCTL
};
/* Special result codes. */
#define BTRES_INPROGRESS (-997)
/* Block trace entry. */
typedef struct {
u32_t request; /* request code; one of BTR_xxx */
u32_t size; /* request size, ioctl request, or access */
u64_t position; /* starting disk position */
u32_t flags; /* transfer flags */
i32_t result; /* request result; OK, bytes, or error */
u32_t start_time; /* request service start time (us) */
u32_t finish_time; /* request service completion time (us) */
} btrace_entry; /* (32 bytes) */
/* This is the number of btrace_entry structures copied out at once using the
* BIOCTRACEGET ioctl call.
*/
#define BTBUF_SIZE 1024
#endif /* _MINIX_BTRACE_H */