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912e603778
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.
15 lines
397 B
Makefile
15 lines
397 B
Makefile
# This was cloned from the Makefile for gprof by changing PROG from gprof
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# to gprof4, adding NOMAN and PATH, adding -DGPROF4 to CFLAGS and deleting
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# beforeinstall.
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# @(#)Makefile 5.17 (Berkeley) 5/11/90
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PROG= gprof4
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NOMAN= noman
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SRCS= gprof.c arcs.c dfn.c lookup.c ${MACHINE}.c hertz.c \
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printgprof.c printlist.c
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CFLAGS+=-DGPROF4
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.PATH: ${.CURDIR}/../../usr.bin/gprof
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.include <bsd.prog.mk>
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