freebsd-src/usr.bin/gprof4/Makefile
Bruce Evans 912e603778 Implemented non-statistical kernel profiling. This is based on
looking at a high resolution clock for each of the following events:
function call, function return, interrupt entry, interrupt exit,
and interesting branches.  The differences between the times of
these events are added at appropriate places in a ordinary histogram
(as if very fast statistical profiling sampled the pc at those
places) so that ordinary gprof can be used to analyze the times.

gmon.h:
Histogram counters need to be 4 bytes for microsecond resolutions.
They will need to be larger for the 586 clock.
The comments were vax-centric and wrong even on vaxes.  Does anyone
disagree?

gprof4.c:
The standard gprof should support counters of all integral sizes
and the size of the counter should be in the gmon header.  This
hack will do until then.  (Use gprof4 -u to examine the results
of non-statistical profiling.)

config/*:
Non-statistical profiling is configured with `config -pp'.
`config -p' still gives ordinary profiling.

kgmon/*:
Non-statistical profiling is enabled with `kgmon -B'.  `kgmon -b'
still enables ordinary profiling (and distables non-statistical
profiling) if non-statistical profiling is configured.
1995-12-29 15:30:05 +00:00

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Makefile

# This was cloned from the Makefile for gprof by changing PROG from gprof
# to gprof4, adding NOMAN and PATH, adding -DGPROF4 to CFLAGS and deleting
# beforeinstall.
# @(#)Makefile 5.17 (Berkeley) 5/11/90
PROG= gprof4
NOMAN= noman
SRCS= gprof.c arcs.c dfn.c lookup.c ${MACHINE}.c hertz.c \
printgprof.c printlist.c
CFLAGS+=-DGPROF4
.PATH: ${.CURDIR}/../../usr.bin/gprof
.include <bsd.prog.mk>