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- You can now run `make -j8 toolchain` on Windows
- You can now run `make -j` on MacOS ARM64 and BSD OSes
- You can now use our Emacs dev environment on MacOS/Windows
- Fix bug where the x16 register was being corrupted by --ftrace
- The programs under build/bootstrap/ are updated as fat binaries
- The Makefile now explains how to download cosmocc-0.0.12 toolchain
- The build scripts under bin/ now support "cosmo" branded toolchains
- stat() now goes faster on Windows (shaves 100ms off `make` latency)
- Code cleanup and added review on the Windows signal checking code
- posix_spawnattr_setrlimit() now works around MacOS ARM64 bugs
- Landlock Make now favors posix_spawn() on non-Linux/OpenBSD
- posix_spawn() now has better --strace logging on Windows
- fstatat() can now avoid EACCES in more cases on Windows
- fchmod() can now change the readonly bit on Windows
This commit is contained in:
Justine Tunney 2023-10-14 20:57:15 -07:00
parent 06c6baaf50
commit c9fecf3a55
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GPG key ID: BE714B4575D6E328
109 changed files with 1188 additions and 454 deletions
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17
libc/calls/open-nt.c
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@ -17,6 +17,7 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/calls/createfileflags.internal.h"
#include "libc/calls/internal.h"
#include "libc/calls/state.internal.h"
#include "libc/calls/struct/sigset.internal.h"
@ -56,31 +57,31 @@ static textwindows int64_t sys_open_nt_impl(int dirfd, const char *path,
// implement no follow flag
// you can't open symlinks; use readlink
// this flag only applies to the final path component
// if O_NOFOLLOW_ANY is passed (-1 on NT) it'll be rejected later
// if _O_NOFOLLOW_ANY is passed (-1 on NT) it'll be rejected later
uint32_t fattr = GetFileAttributes(path16);
if (flags & O_NOFOLLOW) {
if (flags & _O_NOFOLLOW) {
if (fattr != -1u && (fattr & kNtFileAttributeReparsePoint)) {
return eloop();
}
flags &= ~O_NOFOLLOW; // don't actually pass this to win32
flags &= ~_O_NOFOLLOW; // don't actually pass this to win32
}
// handle some obvious cases while we have the attributes
// we should ideally resolve symlinks ourself before doing this
if (fattr != -1u) {
if (fattr & kNtFileAttributeDirectory) {
if ((flags & O_ACCMODE) != O_RDONLY || (flags & O_CREAT)) {
if ((flags & O_ACCMODE) != O_RDONLY || (flags & _O_CREAT)) {
// tried to open directory for writing. note that our
// undocumented O_TMPFILE support on windows requires that a
// undocumented _O_TMPFILE support on windows requires that a
// filename be passed, rather than a directory like linux.
return eisdir();
}
// on posix, the o_directory flag is an advisory safeguard that
// isn't required. on windows, it's mandatory for opening a dir
flags |= O_DIRECTORY;
flags |= _O_DIRECTORY;
} else if (!(fattr & kNtFileAttributeReparsePoint)) {
// we know for certain file isn't a directory
if (flags & O_DIRECTORY) {
if (flags & _O_DIRECTORY) {
return enotdir();
}
}
@ -186,7 +187,7 @@ textwindows int sys_open_nt(int dirfd, const char *file, uint32_t flags,
ssize_t rc;
BLOCK_SIGNALS;
__fds_lock();
if (!(flags & O_CREAT)) mode = 0;
if (!(flags & _O_CREAT)) mode = 0;
if ((rc = fd = __reservefd_unlocked(-1)) != -1) {
if (startswith(file, "/dev/")) {
if (!strcmp(file + 5, "tty")) {