mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 19:43:32 +00:00
39688a73e4
- Simulate SIGPIPE on Windows NT - Fix commandv() regression on Windows NT - Fix sigprocmask() strace bug on OpenBSD - Add many more system calls to --strace logging - Make errno state more pristine in redbean strace
53 lines
2.7 KiB
C
53 lines
2.7 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2021 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/runtime/memtrack.internal.h"
|
|
#include "libc/sysv/consts/map.h"
|
|
#include "libc/sysv/consts/prot.h"
|
|
|
|
static noasan char DescribeMapType(int flags) {
|
|
switch (flags & MAP_TYPE) {
|
|
case MAP_FILE:
|
|
return 'f';
|
|
case MAP_PRIVATE:
|
|
return 'p';
|
|
case MAP_SHARED:
|
|
return 's';
|
|
default:
|
|
return '?';
|
|
}
|
|
}
|
|
|
|
noasan char *DescribeProt(int prot, char p[hasatleast 4]) {
|
|
p[0] = (prot & PROT_READ) ? 'r' : '-';
|
|
p[1] = (prot & PROT_WRITE) ? 'w' : '-';
|
|
p[2] = (prot & PROT_EXEC) ? 'x' : '-';
|
|
p[3] = 0;
|
|
return p;
|
|
}
|
|
|
|
noasan char *DescribeMapping(int prot, int flags, char p[hasatleast 8]) {
|
|
/* asan runtime depends on this function */
|
|
DescribeProt(prot, p);
|
|
p[3] = DescribeMapType(flags);
|
|
p[4] = (flags & MAP_ANONYMOUS) ? 'a' : '-';
|
|
p[5] = (flags & MAP_GROWSDOWN) ? 'S' : '-';
|
|
p[6] = (flags & MAP_FIXED) ? 'F' : '-';
|
|
p[7] = 0;
|
|
return p;
|
|
}
|