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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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6
libc/calls/fstat.c
View file

@ -24,8 +24,8 @@
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/strace.internal.h"
#include "libc/intrin/weaken.h"
#include "libc/sysv/errfuns.h"
#include "libc/runtime/zipos.internal.h"
#include "libc/sysv/errfuns.h"
/**
* Returns information about file, via open()'d descriptor.
@ -38,7 +38,9 @@
*/
int fstat(int fd, struct stat *st) {
int rc;
if (__isfdkind(fd, kFdZip)) {
if (IsAsan() && !__asan_is_valid(st, sizeof(*st))) {
rc = efault();
} else if (__isfdkind(fd, kFdZip)) {
rc = _weaken(__zipos_fstat)(
(struct ZiposHandle *)(intptr_t)g_fds.p[fd].handle, st);
} else if (!IsWindows() && !IsMetal()) {