cosmopolitan/libc/intrin/printmaps.c
2024-07-19 19:38:00 -07:00

54 lines
2.8 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/fmt/conv.h"
#include "libc/fmt/itoa.h"
#include "libc/intrin/describeflags.h"
#include "libc/intrin/kprintf.h"
#include "libc/intrin/maps.h"
#include "libc/macros.internal.h"
#include "libc/runtime/memtrack.internal.h"
#include "libc/runtime/runtime.h"
#include "libc/sysv/consts/auxv.h"
/**
* Prints memory mappings.
*/
void __print_maps(size_t limit) {
char mappingbuf[8], sb[16];
__maps_lock();
for (struct Tree *e = tree_first(__maps.maps); e; e = tree_next(e)) {
struct Map *map = MAP_TREE_CONTAINER(e);
kprintf("%012lx-%012lx %!s", map->addr, map->addr + map->size,
(DescribeMapping)(mappingbuf, map->prot, map->flags));
sizefmt(sb, map->size, 1024);
kprintf(" %!sb", sb);
if (map->hand && map->hand != -1)
kprintf(" hand=%ld", map->hand);
if (map->iscow)
kprintf(" cow");
if (map->readonlyfile)
kprintf(" readonlyfile");
kprintf("\n");
if (!--limit)
break;
}
kprintf("# %'zu bytes in %'zu mappings\n", __maps.pages * __pagesize,
__maps.count);
__maps_unlock();
}