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Add MODE=optlinux build mode (#141)

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This commit is contained in:
Justine Tunney 2021-10-14 19:36:49 -07:00
parent 226aaf3547
commit 67b5200a0b
111 changed files with 934 additions and 854 deletions
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38
libc/calls/openat.c
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@ -19,6 +19,7 @@
#include "libc/bits/weaken.h"
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/sysdebug.internal.h"
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/log/log.h"
@ -43,24 +44,37 @@
* @vforksafe
*/
int openat(int dirfd, const char *file, int flags, ...) {
int rc;
va_list va;
unsigned mode;
struct ZiposUri zipname;
va_start(va, flags);
mode = va_arg(va, unsigned);
va_end(va);
if (!file) return efault();
if (IsAsan() && !__asan_is_valid(file, 1)) return efault();
if (__isfdkind(dirfd, kFdZip)) return einval(); /* TODO(jart): implement me */
if (weaken(__zipos_open) && weaken(__zipos_parseuri)(file, &zipname) != -1) {
if (__vforked) return eopnotsupp();
if (dirfd != AT_FDCWD) return eopnotsupp();
return weaken(__zipos_open)(&zipname, flags, mode);
} else if (!IsWindows() && !IsMetal()) {
return sys_openat(dirfd, file, flags, mode);
} else if (IsMetal()) {
return sys_openat_metal(dirfd, file, flags, mode);
if (file && (!IsAsan() || __asan_is_valid(file, 1))) {
if (!__isfdkind(dirfd, kFdZip)) {
if (weaken(__zipos_open) &&
weaken(__zipos_parseuri)(file, &zipname) != -1) {
if (!__vforked && dirfd == AT_FDCWD) {
rc = weaken(__zipos_open)(&zipname, flags, mode);
} else {
rc = eopnotsupp(); /* TODO */
}
} else if (!IsWindows() && !IsMetal()) {
rc = sys_openat(dirfd, file, flags, mode);
} else if (IsMetal()) {
rc = sys_openat_metal(dirfd, file, flags, mode);
} else {
rc = sys_open_nt(dirfd, file, flags, mode);
}
} else {
rc = eopnotsupp(); /* TODO */
}
} else {
return sys_open_nt(dirfd, file, flags, mode);
rc = efault();
}
SYSDEBUG("openat(%d, %s, %d, %d) -> %d %s", (long)dirfd, file, flags,
(flags & (O_CREAT | O_TMPFILE)) ? mode : 0, (long)rc,
rc == -1 ? strerror(errno) : "");
return rc;
}