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d1d4388201
It hasn't been helpful enough to be justify the maintenance burden. What actually does help is mprotect(), kprintf(), --ftrace and --strace which can always be counted upon to work correctly. We aren't losing much with this change. Support for ASAN on AARCH64 was never implemented. Applying ASAN to the core libc runtimes was disabled many months ago. If there is some way to have an ASAN runtime for user programs that is less invasive we can potentially consider reintroducing support. But now is premature.
64 lines
3.7 KiB
C
64 lines
3.7 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 2020 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/calls/calls.h"
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#include "libc/calls/syscall-nt.internal.h"
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#include "libc/calls/syscall-sysv.internal.h"
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#include "libc/dce.h"
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#include "libc/intrin/describeflags.internal.h"
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#include "libc/intrin/strace.internal.h"
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#include "libc/intrin/weaken.h"
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#include "libc/runtime/zipos.internal.h"
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#include "libc/sysv/consts/at.h"
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#include "libc/sysv/errfuns.h"
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/**
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* Creates directory a.k.a. folder.
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*
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* @param dirfd is normally `AT_FDCWD` but if it's an open directory and
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* path is relative, then path becomes relative to dirfd
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* @param path is a UTF-8 string, preferably relative w/ forward slashes
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* @param mode is permissions bits, which is usually 0755
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* @return 0 on success, or -1 w/ errno
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* @raise EEXIST if named file already exists
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* @raise EBADF if `path` is relative and `dirfd` isn't `AT_FDCWD` or valid
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* @raise ENOTDIR if directory component in `path` existed as non-directory
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* @raise ENAMETOOLONG if symlink-resolved `path` length exceeds `PATH_MAX`
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* @raise ENAMETOOLONG if component in `path` exists longer than `NAME_MAX`
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* @raise EROFS if parent directory is on read-only filesystem
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* @raise ENOSPC if file system or parent directory is full
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* @raise EACCES if write permission was denied on parent directory
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* @raise EACCES if search permission was denied on component in `path`
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* @raise ENOENT if a component within `path` didn't exist
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* @raise ENOENT if `path` is an empty string
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* @raise ELOOP if loop was detected resolving components of `path`
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* @asyncsignalsafe
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* @see makedirs()
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*/
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int mkdirat(int dirfd, const char *path, unsigned mode) {
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int rc;
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if (_weaken(__zipos_notat) && (rc = __zipos_notat(dirfd, path)) == -1) {
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STRACE("zipos mkdirat not supported yet");
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} else if (!IsWindows()) {
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rc = sys_mkdirat(dirfd, path, mode);
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} else {
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rc = sys_mkdirat_nt(dirfd, path, mode);
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}
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STRACE("mkdirat(%s, %#s, %#o) → %d% m", DescribeDirfd(dirfd), path, mode, rc);
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return rc;
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}
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