69aad6f1ee
Out of ad-hoc code and global arrays with hard coded sizes.
This is the first step on having a library that will be first
used on regression tests in the 'perf test' tool.
[acme@felicio linux]$ size /tmp/perf.before
text data bss dec hex filename
1273776 97384 5104416 6475576 62cf38 /tmp/perf.before
[acme@felicio linux]$ size /tmp/perf.new
text data bss dec hex filename
1275422 97416 1392416 2765254 2a31c6 /tmp/perf.new
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
21 lines
432 B
C
21 lines
432 B
C
#ifndef _PERF_XYARRAY_H_
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#define _PERF_XYARRAY_H_ 1
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#include <sys/types.h>
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struct xyarray {
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size_t row_size;
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size_t entry_size;
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char contents[];
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};
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struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size);
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void xyarray__delete(struct xyarray *xy);
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static inline void *xyarray__entry(struct xyarray *xy, int x, int y)
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{
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return &xy->contents[x * xy->row_size + y * xy->entry_size];
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}
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#endif /* _PERF_XYARRAY_H_ */
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