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deps,src,test: update to uvwasi 0.0.3

This commit updates to uvwasi 0.0.3, which implements a newer
version of the WASI spec, snapshot_1. Since the WASI API has
changed, this also requires updating the WebAssembly memory
interfacing logic and recompiling the WASI tests with a
version of wasi-libc that supports snapshot_1.

PR-URL: #30980
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Rich Trott <rtrott@gmail.com>
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cjihrig authored and BridgeAR committed Dec 15, 2019
1 parent f8aa365 commit 32805a9525d533ea7e58bd2536be4b40f5ed3fe9
@@ -6,33 +6,22 @@
#include "wasi_types.h"
#include "uv_mapping.h"

/* TODO(cjihrig): PATH_MAX_BYTES shouldn't be stack allocated. On Windows, paths
can be 32k long, and this PATH_MAX_BYTES is an artificial limitation. */
#ifdef _WIN32
/* MAX_PATH is in characters, not bytes. Make sure we have enough headroom. */
# define PATH_MAX_BYTES (MAX_PATH * 4)
#else
# include <limits.h>
# define PATH_MAX_BYTES (PATH_MAX)
#endif

struct uvwasi_s;

struct uvwasi_fd_wrap_t {
uvwasi_fd_t id;
uv_file fd;
char path[PATH_MAX_BYTES];
char real_path[PATH_MAX_BYTES];
char* path;
char* real_path;
uvwasi_filetype_t type;
uvwasi_rights_t rights_base;
uvwasi_rights_t rights_inheriting;
int preopen;
int valid;
uv_mutex_t mutex;
};

struct uvwasi_fd_table_t {
struct uvwasi_fd_wrap_t* fds;
struct uvwasi_fd_wrap_t** fds;
uint32_t size;
uint32_t used;
uv_rwlock_t rwlock;
@@ -61,7 +50,8 @@ uvwasi_errno_t uvwasi_fd_table_get(const struct uvwasi_fd_table_t* table,
struct uvwasi_fd_wrap_t** wrap,
uvwasi_rights_t rights_base,
uvwasi_rights_t rights_inheriting);
uvwasi_errno_t uvwasi_fd_table_remove(struct uvwasi_fd_table_t* table,
uvwasi_errno_t uvwasi_fd_table_remove(struct uvwasi_s* uvwasi,
struct uvwasi_fd_table_t* table,
const uvwasi_fd_t id);

#endif /* __UVWASI_FD_TABLE_H__ */
@@ -11,7 +11,7 @@ extern "C" {

#define UVWASI_VERSION_MAJOR 0
#define UVWASI_VERSION_MINOR 0
#define UVWASI_VERSION_PATCH 1
#define UVWASI_VERSION_PATCH 3
#define UVWASI_VERSION_HEX ((UVWASI_VERSION_MAJOR << 16) | \
(UVWASI_VERSION_MINOR << 8) | \
(UVWASI_VERSION_PATCH))
@@ -20,7 +20,7 @@ extern "C" {
#define UVWASI_VERSION_STRING UVWASI_STRINGIFY(UVWASI_VERSION_MAJOR) "." \
UVWASI_STRINGIFY(UVWASI_VERSION_MINOR) "." \
UVWASI_STRINGIFY(UVWASI_VERSION_PATCH)
#define UVWASI_VERSION_WASI "snapshot_0"
#define UVWASI_VERSION_WASI "snapshot_1"

typedef void* (*uvwasi_malloc)(size_t size, void* mem_user_data);
typedef void (*uvwasi_free)(void* ptr, void* mem_user_data);
@@ -69,6 +69,7 @@ void uvwasi_destroy(uvwasi_t* uvwasi);
uvwasi_errno_t uvwasi_embedder_remap_fd(uvwasi_t* uvwasi,
const uvwasi_fd_t fd,
uv_file new_host_fd);
const char* uvwasi_embedder_err_code_to_string(uvwasi_errno_t code);


// WASI system call API.
@@ -155,7 +155,7 @@ typedef struct uvwasi_iovec_s {
size_t buf_len;
} uvwasi_iovec_t;

typedef uint32_t uvwasi_linkcount_t;
typedef uint64_t uvwasi_linkcount_t;

typedef uint32_t uvwasi_lookupflags_t; /* Bitfield */
#define UVWASI_LOOKUP_SYMLINK_FOLLOW (1 << 0)
@@ -266,7 +266,6 @@ typedef struct uvwasi_subscription_s {
uvwasi_eventtype_t type;
union {
struct {
uvwasi_userdata_t identifier;
uvwasi_clockid_t clock_id;
uvwasi_timestamp_t timeout;
uvwasi_timestamp_t precision;
@@ -316,8 +315,8 @@ typedef struct uvwasi_event_s {
} uvwasi_event_t;

typedef uint8_t uvwasi_whence_t;
#define UVWASI_WHENCE_CUR 0
#define UVWASI_WHENCE_END 1
#define UVWASI_WHENCE_SET 2
#define UVWASI_WHENCE_SET 0
#define UVWASI_WHENCE_CUR 1
#define UVWASI_WHENCE_END 2

#endif /* __UVWASI_WASI_TYPES_H__ */
@@ -187,12 +187,29 @@ static uvwasi_errno_t uvwasi__fd_table_insert(uvwasi_t* uvwasi,
int preopen,
struct uvwasi_fd_wrap_t** wrap) {
struct uvwasi_fd_wrap_t* entry;
struct uvwasi_fd_wrap_t* new_fds;
struct uvwasi_fd_wrap_t** new_fds;
uvwasi_errno_t err;
uint32_t new_size;
int index;
uint32_t i;
int r;
size_t mp_len;
char* mp_copy;
size_t rp_len;
char* rp_copy;

mp_len = strlen(mapped_path);
rp_len = strlen(real_path);
entry = (struct uvwasi_fd_wrap_t*)
uvwasi__malloc(uvwasi, sizeof(*entry) + mp_len + rp_len + 2);
if (entry == NULL) return UVWASI_ENOMEM;

mp_copy = (char*)(entry + 1);
rp_copy = mp_copy + mp_len + 1;
memcpy(mp_copy, mapped_path, mp_len);
mp_copy[mp_len] = '\0';
memcpy(rp_copy, real_path, rp_len);
rp_copy[rp_len] = '\0';

uv_rwlock_wrlock(&table->rwlock);

@@ -201,12 +218,13 @@ static uvwasi_errno_t uvwasi__fd_table_insert(uvwasi_t* uvwasi,
new_size = table->size * 2;
new_fds = uvwasi__realloc(uvwasi, table->fds, new_size * sizeof(*new_fds));
if (new_fds == NULL) {
uvwasi__free(uvwasi, entry);
err = UVWASI_ENOMEM;
goto exit;
}

for (i = table->size; i < new_size; ++i)
new_fds[i].valid = 0;
new_fds[i] = NULL;

index = table->size;
table->fds = new_fds;
@@ -215,20 +233,21 @@ static uvwasi_errno_t uvwasi__fd_table_insert(uvwasi_t* uvwasi,
/* The table is big enough, so find an empty slot for the new data. */
index = -1;
for (i = 0; i < table->size; ++i) {
if (table->fds[i].valid != 1) {
if (table->fds[i] == NULL) {
index = i;
break;
}
}

/* index should never be -1. */
if (index == -1) {
uvwasi__free(uvwasi, entry);
err = UVWASI_ENOSPC;
goto exit;
}
}

entry = &table->fds[index];
table->fds[index] = entry;

r = uv_mutex_init(&entry->mutex);
if (r != 0) {
@@ -238,13 +257,12 @@ static uvwasi_errno_t uvwasi__fd_table_insert(uvwasi_t* uvwasi,

entry->id = index;
entry->fd = fd;
strcpy(entry->path, mapped_path);
strcpy(entry->real_path, real_path);
entry->path = mp_copy;
entry->real_path = rp_copy;
entry->type = type;
entry->rights_base = rights_base;
entry->rights_inheriting = rights_inheriting;
entry->preopen = preopen;
entry->valid = 1;
table->used++;

if (wrap != NULL)
@@ -281,7 +299,7 @@ uvwasi_errno_t uvwasi_fd_table_init(uvwasi_t* uvwasi,
table->size = init_size;
table->fds = uvwasi__calloc(uvwasi,
init_size,
sizeof(struct uvwasi_fd_wrap_t));
sizeof(struct uvwasi_fd_wrap_t*));

if (table->fds == NULL) {
err = UVWASI_ENOMEM;
@@ -325,9 +343,20 @@ uvwasi_errno_t uvwasi_fd_table_init(uvwasi_t* uvwasi,


void uvwasi_fd_table_free(uvwasi_t* uvwasi, struct uvwasi_fd_table_t* table) {
struct uvwasi_fd_wrap_t* entry;
uint32_t i;

if (table == NULL)
return;

for (i = 0; i < table->size; i++) {
entry = table->fds[i];
if (entry == NULL) continue;

uv_mutex_destroy(&entry->mutex);
uvwasi__free(uvwasi, entry);
}

uvwasi__free(uvwasi, table->fds);
table->fds = NULL;
table->size = 0;
@@ -430,9 +459,9 @@ uvwasi_errno_t uvwasi_fd_table_get(const struct uvwasi_fd_table_t* table,
goto exit;
}

entry = &table->fds[id];
entry = table->fds[id];

if (entry->valid != 1 || entry->id != id) {
if (entry == NULL || entry->id != id) {
err = UVWASI_EBADF;
goto exit;
}
@@ -453,7 +482,8 @@ uvwasi_errno_t uvwasi_fd_table_get(const struct uvwasi_fd_table_t* table,
}


uvwasi_errno_t uvwasi_fd_table_remove(struct uvwasi_fd_table_t* table,
uvwasi_errno_t uvwasi_fd_table_remove(uvwasi_t* uvwasi,
struct uvwasi_fd_table_t* table,
const uvwasi_fd_t id) {
struct uvwasi_fd_wrap_t* entry;
uvwasi_errno_t err;
@@ -468,15 +498,16 @@ uvwasi_errno_t uvwasi_fd_table_remove(struct uvwasi_fd_table_t* table,
goto exit;
}

entry = &table->fds[id];
entry = table->fds[id];

if (entry->valid != 1 || entry->id != id) {
if (entry == NULL || entry->id != id) {
err = UVWASI_EBADF;
goto exit;
}

uv_mutex_destroy(&entry->mutex);
entry->valid = 0;
uvwasi__free(uvwasi, entry);
table->fds[id] = NULL;
table->used--;
err = UVWASI_ESUCCESS;
exit:
@@ -25,6 +25,16 @@
#include "fd_table.h"
#include "clocks.h"

/* TODO(cjihrig): PATH_MAX_BYTES shouldn't be stack allocated. On Windows, paths
can be 32k long, and this PATH_MAX_BYTES is an artificial limitation. */
#ifdef _WIN32
/* MAX_PATH is in characters, not bytes. Make sure we have enough headroom. */
# define PATH_MAX_BYTES (MAX_PATH * 4)
#else
# include <limits.h>
# define PATH_MAX_BYTES (PATH_MAX)
#endif

static void* default_malloc(size_t size, void* mem_user_data) {
return malloc(size);
}
@@ -688,7 +698,7 @@ uvwasi_errno_t uvwasi_fd_close(uvwasi_t* uvwasi, uvwasi_fd_t fd) {
if (r != 0)
return uvwasi__translate_uv_error(r);

return uvwasi_fd_table_remove(&uvwasi->fds, fd);
return uvwasi_fd_table_remove(uvwasi, &uvwasi->fds, fd);
}


@@ -1319,7 +1329,7 @@ uvwasi_errno_t uvwasi_fd_renumber(uvwasi_t* uvwasi,
to_wrap->id = to;
uv_mutex_unlock(&from_wrap->mutex);
uv_mutex_unlock(&to_wrap->mutex);
return uvwasi_fd_table_remove(&uvwasi->fds, from);
return uvwasi_fd_table_remove(uvwasi, &uvwasi->fds, from);
}


@@ -1773,7 +1783,7 @@ uvwasi_errno_t uvwasi_path_open(uvwasi_t* uvwasi,
if ((o_flags & UVWASI_O_DIRECTORY) != 0 &&
wrap.type != UVWASI_FILETYPE_DIRECTORY) {
uv_mutex_unlock(&dirfd_wrap->mutex);
uvwasi_fd_table_remove(&uvwasi->fds, wrap.id);
uvwasi_fd_table_remove(uvwasi, &uvwasi->fds, wrap.id);
err = UVWASI_ENOTDIR;
goto close_file_and_error_exit;
}
@@ -2140,3 +2150,90 @@ uvwasi_errno_t uvwasi_sock_shutdown(uvwasi_t* uvwasi,
https://github.com/WebAssembly/WASI/issues/4 */
return UVWASI_ENOTSUP;
}


const char* uvwasi_embedder_err_code_to_string(uvwasi_errno_t code) {
switch (code) {
#define V(errcode) case errcode: return #errcode;
V(UVWASI_E2BIG)
V(UVWASI_EACCES)
V(UVWASI_EADDRINUSE)
V(UVWASI_EADDRNOTAVAIL)
V(UVWASI_EAFNOSUPPORT)
V(UVWASI_EAGAIN)
V(UVWASI_EALREADY)
V(UVWASI_EBADF)
V(UVWASI_EBADMSG)
V(UVWASI_EBUSY)
V(UVWASI_ECANCELED)
V(UVWASI_ECHILD)
V(UVWASI_ECONNABORTED)
V(UVWASI_ECONNREFUSED)
V(UVWASI_ECONNRESET)
V(UVWASI_EDEADLK)
V(UVWASI_EDESTADDRREQ)
V(UVWASI_EDOM)
V(UVWASI_EDQUOT)
V(UVWASI_EEXIST)
V(UVWASI_EFAULT)
V(UVWASI_EFBIG)
V(UVWASI_EHOSTUNREACH)
V(UVWASI_EIDRM)
V(UVWASI_EILSEQ)
V(UVWASI_EINPROGRESS)
V(UVWASI_EINTR)
V(UVWASI_EINVAL)
V(UVWASI_EIO)
V(UVWASI_EISCONN)
V(UVWASI_EISDIR)
V(UVWASI_ELOOP)
V(UVWASI_EMFILE)
V(UVWASI_EMLINK)
V(UVWASI_EMSGSIZE)
V(UVWASI_EMULTIHOP)
V(UVWASI_ENAMETOOLONG)
V(UVWASI_ENETDOWN)
V(UVWASI_ENETRESET)
V(UVWASI_ENETUNREACH)
V(UVWASI_ENFILE)
V(UVWASI_ENOBUFS)
V(UVWASI_ENODEV)
V(UVWASI_ENOENT)
V(UVWASI_ENOEXEC)
V(UVWASI_ENOLCK)
V(UVWASI_ENOLINK)
V(UVWASI_ENOMEM)
V(UVWASI_ENOMSG)
V(UVWASI_ENOPROTOOPT)
V(UVWASI_ENOSPC)
V(UVWASI_ENOSYS)
V(UVWASI_ENOTCONN)
V(UVWASI_ENOTDIR)
V(UVWASI_ENOTEMPTY)
V(UVWASI_ENOTRECOVERABLE)
V(UVWASI_ENOTSOCK)
V(UVWASI_ENOTSUP)
V(UVWASI_ENOTTY)
V(UVWASI_ENXIO)
V(UVWASI_EOVERFLOW)
V(UVWASI_EOWNERDEAD)
V(UVWASI_EPERM)
V(UVWASI_EPIPE)
V(UVWASI_EPROTO)
V(UVWASI_EPROTONOSUPPORT)
V(UVWASI_EPROTOTYPE)
V(UVWASI_ERANGE)
V(UVWASI_EROFS)
V(UVWASI_ESPIPE)
V(UVWASI_ESRCH)
V(UVWASI_ESTALE)
V(UVWASI_ETIMEDOUT)
V(UVWASI_ETXTBSY)
V(UVWASI_EXDEV)
V(UVWASI_ENOTCAPABLE)
V(UVWASI_ESUCCESS)
#undef V
default:
return "UVWASI_UNKNOWN_ERROR";
}
}

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