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| author | Ken Raeburn <raeburn@cygnus> | 1995-02-07 22:34:18 +0000 |
|---|---|---|
| committer | Ken Raeburn <raeburn@cygnus> | 1995-02-07 22:34:18 +0000 |
| commit | 5489fcc3d9dbb1f529dddb19b615e23d8ed59dc7 (patch) | |
| tree | 1a79cfffd92f2afb67780dd7372c1759c49791aa /gprof/hertz.c | |
| parent | 2559e01429d193b7957c106a6a8b0598476f9845 (diff) | |
| download | gdb-5489fcc3d9dbb1f529dddb19b615e23d8ed59dc7.zip gdb-5489fcc3d9dbb1f529dddb19b615e23d8ed59dc7.tar.gz gdb-5489fcc3d9dbb1f529dddb19b615e23d8ed59dc7.tar.bz2 | |
Lots of changes from David Mosberger-Tang; see ChangeLog and NOTES for details:
Alpha support.
Long options.
New file format to support more information; backwards compatibility.
Line-level profiling, on systems where bfd_find_nearest_line works.
Selective display of data.
Diffstat (limited to 'gprof/hertz.c')
| -rw-r--r-- | gprof/hertz.c | 39 |
1 files changed, 16 insertions, 23 deletions
diff --git a/gprof/hertz.c b/gprof/hertz.c index 0d8d9d3..979ad37 100644 --- a/gprof/hertz.c +++ b/gprof/hertz.c @@ -16,38 +16,31 @@ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ - -#ifndef lint -static char sccsid[] = "@(#)hertz.c 5.4 (Berkeley) 6/1/90"; -#endif /* not lint */ - #include <sys/time.h> +#include "hertz.h" - /* - * discover the tick frequency of the machine - * if something goes wrong, we return 0, an impossible hertz. - */ -#define HZ_WRONG 0 #ifdef __MSDOS__ -#define HERTZ 18 +# define HERTZ 18 #endif +int hertz() { #ifdef HERTZ - return HERTZ; + return HERTZ; #else - struct itimerval tim; + struct itimerval tim; - tim.it_interval.tv_sec = 0; - tim.it_interval.tv_usec = 1; - tim.it_value.tv_sec = 0; - tim.it_value.tv_usec = 0; - setitimer(ITIMER_REAL, &tim, 0); - setitimer(ITIMER_REAL, 0, &tim); - if (tim.it_interval.tv_usec < 2) - return(HZ_WRONG); - return (1000000 / tim.it_interval.tv_usec); + tim.it_interval.tv_sec = 0; + tim.it_interval.tv_usec = 1; + tim.it_value.tv_sec = 0; + tim.it_value.tv_usec = 0; + setitimer(ITIMER_REAL, &tim, 0); + setitimer(ITIMER_REAL, 0, &tim); + if (tim.it_interval.tv_usec < 2) { + return HZ_WRONG; + } /* if */ + return 1000000 / tim.it_interval.tv_usec; #endif -} +} /* hertz */ |