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Make ZipOS and Qemu work better

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This change improves the dirstream library in a lot of respects,
especially for /zip/... files. Also turn off MAP_STACK on Aarch64
because Qemu seems to implement it differently than Linux and it's
probably responsible for a lot of mysterious crashes.
This commit is contained in:
Justine Tunney 2023-08-15 18:24:53 -07:00
parent 4658ae539f
commit 110559ce6a
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GPG key ID: BE714B4575D6E328
48 changed files with 748 additions and 500 deletions
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18
libc/runtime/zipos-fcntl.c
View file

@ -17,34 +17,28 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/internal.h"
#include "libc/runtime/zipos.internal.h"
#include "libc/sysv/consts/f.h"
#include "libc/sysv/consts/fd.h"
#include "libc/sysv/consts/o.h"
#include "libc/sysv/errfuns.h"
#include "libc/zip.internal.h"
#include "libc/runtime/zipos.internal.h"
#define ZIPOS __zipos_get()
#define HANDLE ((struct ZiposHandle *)(intptr_t)g_fds.p[fd].handle)
int __zipos_fcntl(int fd, int cmd, uintptr_t arg) {
int rc;
if (cmd == F_GETFD) {
if (g_fds.p[fd].flags & O_CLOEXEC) {
rc = FD_CLOEXEC;
return FD_CLOEXEC;
} else {
rc = 0;
return 0;
}
} else if (cmd == F_SETFD) {
if (arg & FD_CLOEXEC) {
g_fds.p[fd].flags |= O_CLOEXEC;
rc = FD_CLOEXEC;
return FD_CLOEXEC;
} else {
g_fds.p[fd].flags &= ~O_CLOEXEC;
rc = 0;
return 0;
}
} else {
rc = einval();
return einval();
}
return rc;
}