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authorWaldemar Brodkorb <wbx@openadk.org>2017-04-22 22:44:56 +0200
committerWaldemar Brodkorb <wbx@openadk.org>2017-04-22 22:44:56 +0200
commit4d466d8adaa02bd45c3d36cb910046c23c83a6f9 (patch)
treed86e6031b80f274c954275b2d241f79937cf3159 /libc/sysdeps/linux/common/hp-timing.h
parent41315bb358d6d2f82e4e2ca8a6cb08fe69f90d56 (diff)
remove unused HP_TIMING_AVAIL and header
cleanup unused and unsupported code.
Diffstat (limited to 'libc/sysdeps/linux/common/hp-timing.h')
-rw-r--r--libc/sysdeps/linux/common/hp-timing.h82
1 files changed, 0 insertions, 82 deletions
diff --git a/libc/sysdeps/linux/common/hp-timing.h b/libc/sysdeps/linux/common/hp-timing.h
deleted file mode 100644
index bc36f022c..000000000
--- a/libc/sysdeps/linux/common/hp-timing.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/* High precision, low overhead timing functions. Generic version.
- Copyright (C) 1998, 2000 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#ifndef _HP_TIMING_H
-#define _HP_TIMING_H 1
-
-
-/* There are no generic definitions for the times. We could write something
- using the `gettimeofday' system call where available but the overhead of
- the system call might be too high.
-
- In case a platform supports timers in the hardware the following macros
- and types must be defined:
-
- - HP_TIMING_AVAIL: test for availability.
-
- - HP_TIMING_INLINE: this macro is non-zero if the functionality is not
- implemented using function calls but instead uses some inlined code
- which might simply consist of a few assembler instructions. We have to
- know this since we might want to use the macros here in places where we
- cannot make function calls.
-
- - hp_timing_t: This is the type for variables used to store the time
- values.
-
- - HP_TIMING_ZERO: clear `hp_timing_t' object.
-
- - HP_TIMING_NOW: place timestamp for current time in variable given as
- parameter.
-
- - HP_TIMING_DIFF_INIT: do whatever is necessary to be able to use the
- HP_TIMING_DIFF macro.
-
- - HP_TIMING_DIFF: compute difference between two times and store it
- in a third. Source and destination might overlap.
-
- - HP_TIMING_ACCUM: add time difference to another variable. This might
- be a bit more complicated to implement for some platforms as the
- operation should be thread-safe and 64bit arithmetic on 32bit platforms
- is not.
-
- - HP_TIMING_ACCUM_NT: this is the variant for situations where we know
- there are no threads involved.
-
- - HP_TIMING_PRINT: write decimal representation of the timing value into
- the given string. This operation need not be inline even though
- HP_TIMING_INLINE is specified.
-
-*/
-
-/* Provide dummy definitions. */
-#define HP_TIMING_AVAIL (0)
-#define HP_TIMING_INLINE (0)
-typedef int hp_timing_t;
-#define HP_TIMING_ZERO(Var)
-#define HP_TIMING_NOW(var)
-#define HP_TIMING_DIFF_INIT()
-#define HP_TIMING_DIFF(Diff, Start, End)
-#define HP_TIMING_ACCUM(Sum, Diff)
-#define HP_TIMING_ACCUM_NT(Sum, Diff)
-#define HP_TIMING_PRINT(Buf, Len, Val)
-
-/* Since this implementation is not available we tell the user about it. */
-#define HP_TIMING_NONAVAIL 1
-
-#endif /* hp-timing.h */