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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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37
libc/runtime/zipos.internal.h
View file

@ -6,23 +6,29 @@
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
#define ZIPOS_PATH_MAX 1024
#define ZIPOS_SYNTHETIC_DIRECTORY 0
struct stat;
struct iovec;
struct Zipos;
struct ZiposUri {
const char *path;
size_t len;
uint32_t len;
char path[ZIPOS_PATH_MAX];
};
struct ZiposHandle {
struct ZiposHandle *next;
pthread_mutex_t lock;
size_t size; /* byte length of `mem` */
size_t mapsize; /* total size of this struct */
size_t pos; /* read/write byte offset state */
uint32_t cfile; /* central directory entry rva */
uint8_t *mem; /* points to inflated data or uncompressed image */
uint8_t data[]; /* uncompressed file memory */
struct Zipos *zipos;
size_t size;
size_t mapsize;
size_t pos;
size_t cfile;
uint8_t *mem;
uint8_t data[];
};
struct Zipos {
@ -31,17 +37,18 @@ struct Zipos {
struct ZiposHandle *freelist;
};
int __zipos_close(int);
void __zipos_lock(void);
void __zipos_unlock(void);
int __zipos_close(int);
size_t __zipos_normpath(char *);
struct Zipos *__zipos_get(void) pureconst;
void __zipos_free(struct Zipos *, struct ZiposHandle *);
void __zipos_free(struct ZiposHandle *);
ssize_t __zipos_parseuri(const char *, struct ZiposUri *);
ssize_t __zipos_find(struct Zipos *, const struct ZiposUri *);
int __zipos_open(const struct ZiposUri *, unsigned, int);
int __zipos_access(const struct ZiposUri *, int);
int __zipos_stat(const struct ZiposUri *, struct stat *);
int __zipos_fstat(const struct ZiposHandle *, struct stat *);
ssize_t __zipos_find(struct Zipos *, struct ZiposUri *);
int __zipos_open(struct ZiposUri *, int);
int __zipos_access(struct ZiposUri *, int);
int __zipos_stat(struct ZiposUri *, struct stat *);
int __zipos_fstat(struct ZiposHandle *, struct stat *);
int __zipos_stat_impl(struct Zipos *, size_t, struct stat *);
ssize_t __zipos_read(struct ZiposHandle *, const struct iovec *, size_t,
ssize_t);