mirror of
https://github.com/jart/cosmopolitan.git
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85 lines
3.3 KiB
C
85 lines
3.3 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2021 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/assert.h"
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#include "libc/calls/calls.h"
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#include "libc/intrin/kprintf.h"
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#include "libc/limits.h"
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#include "libc/log/countexpr.h"
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#include "libc/macros.h"
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#include "libc/mem/alg.h"
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#include "libc/runtime/runtime.h"
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#include "libc/stdckdint.h"
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#include "libc/stdio/stdio.h"
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#ifdef __x86_64__
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static long GetLongSum(const long *h, size_t n) {
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long t;
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size_t i;
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for (t = i = 0; i < n; ++i) {
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if (ckd_add(&t, t, h[i])) {
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t = LONG_MAX;
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break;
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}
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}
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return t;
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}
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static size_t GetRowCount(const long *h, size_t n) {
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while (n && !h[n - 1])
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--n;
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return n;
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}
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static void PrintHistogram(const long *h, size_t n, long t) {
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size_t i;
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long j, p;
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char s[101];
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unsigned long logos;
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for (i = 0; i < n; ++i) {
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p = (h[i] * 10000 + (t >> 1)) / t;
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unassert(0 <= p && p <= 10000);
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if (p) {
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for (j = 0; j < p / 100; ++j)
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s[j] = '#';
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s[j] = 0;
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logos = i ? 1ul << (i - 1) : 0;
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kprintf("%'12lu %'16ld %3d.%02d%% %s\n", logos, h[i], p / 100, p % 100,
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s);
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}
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}
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}
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void countexpr_report(void) {
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long hits;
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struct countexpr *p;
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for (p = countexpr_data; p->line; ++p) {
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if ((hits = GetLongSum(p->logos, 64))) {
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kprintf("%s:%d: %s(%s) %'ld hits\n", p->file, p->line, p->macro, p->code,
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hits);
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PrintHistogram(p->logos, 64, hits);
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}
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}
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}
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__attribute__((__constructor__(90))) static textstartup void countexpr_init() {
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atexit(countexpr_report);
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}
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#endif /* __x86_64__ */
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