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m3_api_meta_wasi.c
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//
// m3_api_meta_wasi.c
//
// Created by Volodymyr Shymanskyy on 01/08/20.
// Copyright © 2020 Volodymyr Shymanskyy. All rights reserved.
//
#include "m3_api_wasi.h"
#include "m3_env.h"
#include "m3_exception.h"
#if defined(d_m3HasMetaWASI)
// NOTE: MetaWASI mostly redirects WASI calls to the host WASI environment
#if !defined(__wasi__)
# error "MetaWASI is only supported on WASI target"
#endif
#if __has_include("wasi/api.h")
# include <wasi/api.h>
# define USE_NEW_WASI
#elif __has_include("wasi/core.h")
# warning "Using legacy WASI headers"
# include <wasi/core.h>
# define __WASI_ERRNO_SUCCESS __WASI_ESUCCESS
# define __WASI_ERRNO_INVAL __WASI_EINVAL
#else
# error "Missing WASI headers"
#endif
static m3_wasi_context_t* wasi_context;
typedef size_t __wasi_size_t;
static inline
const void* copy_iov_to_host(IM3Runtime runtime, void* _mem, __wasi_iovec_t* host_iov, __wasi_iovec_t* wasi_iov, int32_t iovs_len)
{
// Convert wasi memory offsets to host addresses
for (int i = 0; i < iovs_len; i++) {
host_iov[i].buf = m3ApiOffsetToPtr(wasi_iov[i].buf);
host_iov[i].buf_len = wasi_iov[i].buf_len;
m3ApiCheckMem(host_iov[i].buf, host_iov[i].buf_len);
}
m3ApiSuccess();
}
#if d_m3EnableWasiTracing
const char* wasi_errno2str(__wasi_errno_t err)
{
switch (err) {
case 0: return "ESUCCESS";
case 1: return "E2BIG";
case 2: return "EACCES";
case 3: return "EADDRINUSE";
case 4: return "EADDRNOTAVAIL";
case 5: return "EAFNOSUPPORT";
case 6: return "EAGAIN";
case 7: return "EALREADY";
case 8: return "EBADF";
case 9: return "EBADMSG";
case 10: return "EBUSY";
case 11: return "ECANCELED";
case 12: return "ECHILD";
case 13: return "ECONNABORTED";
case 14: return "ECONNREFUSED";
case 15: return "ECONNRESET";
case 16: return "EDEADLK";
case 17: return "EDESTADDRREQ";
case 18: return "EDOM";
case 19: return "EDQUOT";
case 20: return "EEXIST";
case 21: return "EFAULT";
case 22: return "EFBIG";
case 23: return "EHOSTUNREACH";
case 24: return "EIDRM";
case 25: return "EILSEQ";
case 26: return "EINPROGRESS";
case 27: return "EINTR";
case 28: return "EINVAL";
case 29: return "EIO";
case 30: return "EISCONN";
case 31: return "EISDIR";
case 32: return "ELOOP";
case 33: return "EMFILE";
case 34: return "EMLINK";
case 35: return "EMSGSIZE";
case 36: return "EMULTIHOP";
case 37: return "ENAMETOOLONG";
case 38: return "ENETDOWN";
case 39: return "ENETRESET";
case 40: return "ENETUNREACH";
case 41: return "ENFILE";
case 42: return "ENOBUFS";
case 43: return "ENODEV";
case 44: return "ENOENT";
case 45: return "ENOEXEC";
case 46: return "ENOLCK";
case 47: return "ENOLINK";
case 48: return "ENOMEM";
case 49: return "ENOMSG";
case 50: return "ENOPROTOOPT";
case 51: return "ENOSPC";
case 52: return "ENOSYS";
case 53: return "ENOTCONN";
case 54: return "ENOTDIR";
case 55: return "ENOTEMPTY";
case 56: return "ENOTRECOVERABLE";
case 57: return "ENOTSOCK";
case 58: return "ENOTSUP";
case 59: return "ENOTTY";
case 60: return "ENXIO";
case 61: return "EOVERFLOW";
case 62: return "EOWNERDEAD";
case 63: return "EPERM";
case 64: return "EPIPE";
case 65: return "EPROTO";
case 66: return "EPROTONOSUPPORT";
case 67: return "EPROTOTYPE";
case 68: return "ERANGE";
case 69: return "EROFS";
case 70: return "ESPIPE";
case 71: return "ESRCH";
case 72: return "ESTALE";
case 73: return "ETIMEDOUT";
case 74: return "ETXTBSY";
case 75: return "EXDEV";
case 76: return "ENOTCAPABLE";
default: return "<unknown>";
}
}
# define WASI_TRACE(fmt, ...) { fprintf(stderr, "%s " fmt, __FUNCTION__+16, ##__VA_ARGS__); fprintf(stderr, " => %s\n", wasi_errno2str(ret)); }
#else
# define WASI_TRACE(fmt, ...)
#endif
/*
* WASI API implementation
*/
m3ApiRawFunction(m3_wasi_generic_args_get)
{
m3ApiReturnType (uint32_t)
m3ApiGetArgMem (uint32_t * , argv)
m3ApiGetArgMem (char * , argv_buf)
m3_wasi_context_t* context = (m3_wasi_context_t*)(_ctx->userdata);
if (context == NULL) { m3ApiReturn(__WASI_ERRNO_INVAL); }
m3ApiCheckMem(argv, context->argc * sizeof(uint32_t));
for (u32 i = 0; i < context->argc; ++i)
{
m3ApiWriteMem32(&argv[i], m3ApiPtrToOffset(argv_buf));
size_t len = strlen (context->argv[i]);
m3ApiCheckMem(argv_buf, len);
memcpy (argv_buf, context->argv[i], len);
argv_buf += len;
* argv_buf++ = 0;
}
m3ApiReturn(__WASI_ERRNO_SUCCESS);
}
m3ApiRawFunction(m3_wasi_generic_args_sizes_get)
{
m3ApiReturnType (uint32_t)
m3ApiGetArgMem (__wasi_size_t * , argc)
m3ApiGetArgMem (__wasi_size_t * , argv_buf_size)
m3ApiCheckMem(argc, sizeof(__wasi_size_t));
m3ApiCheckMem(argv_buf_size, sizeof(__wasi_size_t));
m3_wasi_context_t* context = (m3_wasi_context_t*)(_ctx->userdata);
if (context == NULL) { m3ApiReturn(__WASI_ERRNO_INVAL); }
__wasi_size_t buf_len = 0;
for (u32 i = 0; i < context->argc; ++i)
{
buf_len += strlen (context->argv[i]) + 1;
}
m3ApiWriteMem32(argc, context->argc);
m3ApiWriteMem32(argv_buf_size, buf_len);
m3ApiReturn(__WASI_ERRNO_SUCCESS);
}
m3ApiRawFunction(m3_wasi_generic_environ_get)
{
m3ApiReturnType (uint32_t)
m3ApiGetArgMem (uint32_t * , env)
m3ApiGetArgMem (char * , env_buf)
__wasi_errno_t ret;
__wasi_size_t env_count, env_buf_size;
ret = __wasi_environ_sizes_get(&env_count, &env_buf_size);
if (ret != __WASI_ERRNO_SUCCESS) m3ApiReturn(ret);
m3ApiCheckMem(env, env_count * sizeof(uint32_t));
m3ApiCheckMem(env_buf, env_buf_size);
ret = __wasi_environ_get(env, env_buf);
if (ret != __WASI_ERRNO_SUCCESS) m3ApiReturn(ret);
for (u32 i = 0; i < env_count; ++i) {
env[i] = m3ApiPtrToOffset (env[i]);
}
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_environ_sizes_get)
{
m3ApiReturnType (uint32_t)
m3ApiGetArgMem (__wasi_size_t * , env_count)
m3ApiGetArgMem (__wasi_size_t * , env_buf_size)
m3ApiCheckMem(env_count, sizeof(__wasi_size_t));
m3ApiCheckMem(env_buf_size, sizeof(__wasi_size_t));
__wasi_errno_t ret = __wasi_environ_sizes_get(env_count, env_buf_size);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_fd_prestat_dir_name)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArgMem (char * , path)
m3ApiGetArg (__wasi_size_t , path_len)
m3ApiCheckMem(path, path_len);
__wasi_errno_t ret = __wasi_fd_prestat_dir_name(fd, path, path_len);
WASI_TRACE("fd:%d, len:%d | path:%s", fd, path_len, path);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_fd_prestat_get)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArgMem (__wasi_prestat_t * , buf)
m3ApiCheckMem(buf, sizeof(__wasi_prestat_t));
__wasi_errno_t ret = __wasi_fd_prestat_get(fd, buf);
WASI_TRACE("fd:%d | type:%d, name_len:%d", fd, buf->pr_type, buf->u.dir.pr_name_len);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_fd_fdstat_get)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArgMem (__wasi_fdstat_t * , fdstat)
m3ApiCheckMem(fdstat, sizeof(__wasi_fdstat_t));
__wasi_errno_t ret = __wasi_fd_fdstat_get(fd, fdstat);
WASI_TRACE("fd:%d", fd);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_fd_fdstat_set_flags)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArg (__wasi_fdflags_t , flags)
__wasi_errno_t ret = __wasi_fd_fdstat_set_flags(fd, flags);
WASI_TRACE("fd:%d, flags:0x%x", fd, flags);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_unstable_fd_filestat_get)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArgMem (uint8_t * , buf)
m3ApiCheckMem(buf, 56); // wasi_filestat_t
__wasi_filestat_t stat;
__wasi_errno_t ret = __wasi_fd_filestat_get(fd, &stat);
if (ret != __WASI_ERRNO_SUCCESS) {
m3ApiReturn(ret);
}
memset(buf, 0, 56);
m3ApiWriteMem64(buf+0, stat.st_dev);
m3ApiWriteMem64(buf+8, stat.st_ino);
m3ApiWriteMem8 (buf+16, stat.st_filetype);
m3ApiWriteMem32(buf+20, stat.st_nlink);
m3ApiWriteMem64(buf+24, stat.st_size);
m3ApiWriteMem64(buf+32, stat.st_atim);
m3ApiWriteMem64(buf+40, stat.st_mtim);
m3ApiWriteMem64(buf+48, stat.st_ctim);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_snapshot_preview1_fd_filestat_get)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArgMem (uint8_t * , buf)
m3ApiCheckMem(buf, 64); // wasi_filestat_t
__wasi_filestat_t stat;
__wasi_errno_t ret = __wasi_fd_filestat_get(fd, &stat);
if (ret != __WASI_ERRNO_SUCCESS) {
m3ApiReturn(ret);
}
memset(buf, 0, 64);
m3ApiWriteMem64(buf+0, stat.st_dev);
m3ApiWriteMem64(buf+8, stat.st_ino);
m3ApiWriteMem8 (buf+16, stat.st_filetype);
m3ApiWriteMem64(buf+24, stat.st_nlink);
m3ApiWriteMem64(buf+32, stat.st_size);
m3ApiWriteMem64(buf+40, stat.st_atim);
m3ApiWriteMem64(buf+48, stat.st_mtim);
m3ApiWriteMem64(buf+56, stat.st_ctim);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_unstable_fd_seek)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArg (__wasi_filedelta_t , offset)
m3ApiGetArg (uint32_t , wasi_whence)
m3ApiGetArgMem (__wasi_filesize_t * , result)
m3ApiCheckMem(result, sizeof(__wasi_filesize_t));
__wasi_whence_t whence = -1;
const char* whstr = "???";
switch (wasi_whence) {
case 0: whence = __WASI_WHENCE_CUR; whstr = "CUR"; break;
case 1: whence = __WASI_WHENCE_END; whstr = "END"; break;
case 2: whence = __WASI_WHENCE_SET; whstr = "SET"; break;
}
__wasi_errno_t ret = __wasi_fd_seek(fd, offset, whence, result);
WASI_TRACE("fd:%d, offset:%d, whence:%s | result:%d", fd, offset, whstr, *result);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_snapshot_preview1_fd_seek)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArg (__wasi_filedelta_t , offset)
m3ApiGetArg (uint32_t , wasi_whence)
m3ApiGetArgMem (__wasi_filesize_t * , result)
m3ApiCheckMem(result, sizeof(__wasi_filesize_t));
__wasi_whence_t whence = -1;
const char* whstr = "???";
switch (wasi_whence) {
case 0: whence = __WASI_WHENCE_SET; whstr = "SET"; break;
case 1: whence = __WASI_WHENCE_CUR; whstr = "CUR"; break;
case 2: whence = __WASI_WHENCE_END; whstr = "END"; break;
}
__wasi_errno_t ret = __wasi_fd_seek(fd, offset, whence, result);
WASI_TRACE("fd:%d, offset:%d, whence:%s | result:%d", fd, offset, whstr, *result);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_fd_renumber)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , from)
m3ApiGetArg (__wasi_fd_t , to)
__wasi_errno_t ret = __wasi_fd_renumber(from, to);
WASI_TRACE("from:%d, to:%d", from, to);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_fd_sync)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
__wasi_errno_t ret = __wasi_fd_sync(fd);
WASI_TRACE("fd:%d", fd);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_fd_tell)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArgMem (__wasi_filesize_t * , result)
m3ApiCheckMem(result, sizeof(__wasi_filesize_t));
__wasi_errno_t ret = __wasi_fd_tell(fd, result);
WASI_TRACE("fd:%d | result:%d", fd, *result);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_path_create_directory)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArgMem (const char * , path)
m3ApiGetArg (__wasi_size_t , path_len)
m3ApiCheckMem(path, path_len);
__wasi_errno_t ret = __wasi_path_create_directory(fd, path, path_len);
WASI_TRACE("fd:%d, path:%s", fd, path);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_path_readlink)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArgMem (const char * , path)
m3ApiGetArg (__wasi_size_t , path_len)
m3ApiGetArgMem (char * , buf)
m3ApiGetArg (__wasi_size_t , buf_len)
m3ApiGetArgMem (__wasi_size_t * , bufused)
m3ApiCheckMem(path, path_len);
m3ApiCheckMem(buf, buf_len);
m3ApiCheckMem(bufused, sizeof(__wasi_size_t));
__wasi_errno_t ret = __wasi_path_readlink(fd, path, path_len, buf, buf_len, bufused);
WASI_TRACE("fd:%d, path:%s | buf:%s, bufused:%d", fd, path, buf, *bufused);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_path_remove_directory)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArgMem (const char * , path)
m3ApiGetArg (__wasi_size_t , path_len)
m3ApiCheckMem(path, path_len);
__wasi_errno_t ret = __wasi_path_remove_directory(fd, path, path_len);
WASI_TRACE("fd:%d, path:%s", fd, path);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_path_rename)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , old_fd)
m3ApiGetArgMem (const char * , old_path)
m3ApiGetArg (__wasi_size_t , old_path_len)
m3ApiGetArg (__wasi_fd_t , new_fd)
m3ApiGetArgMem (const char * , new_path)
m3ApiGetArg (__wasi_size_t , new_path_len)
m3ApiCheckMem(old_path, old_path_len);
m3ApiCheckMem(new_path, new_path_len);
__wasi_errno_t ret = __wasi_path_rename(old_fd, old_path, old_path_len,
new_fd, new_path, new_path_len);
WASI_TRACE("old_fd:%d, old_path:%s, new_fd:%d, new_path:%s", old_fd, old_path, new_fd, new_path);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_path_symlink)
{
m3ApiReturnType (uint32_t)
m3ApiGetArgMem (const char * , old_path)
m3ApiGetArg (__wasi_size_t , old_path_len)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArgMem (const char * , new_path)
m3ApiGetArg (__wasi_size_t , new_path_len)
m3ApiCheckMem(old_path, old_path_len);
m3ApiCheckMem(new_path, new_path_len);
__wasi_errno_t ret = __wasi_path_symlink(old_path, old_path_len,
fd, new_path, new_path_len);
WASI_TRACE("old_path:%s, fd:%d, new_path:%s", old_path, fd, new_path);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_path_unlink_file)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArgMem (const char * , path)
m3ApiGetArg (__wasi_size_t , path_len)
m3ApiCheckMem(path, path_len);
__wasi_errno_t ret = __wasi_path_unlink_file(fd, path, path_len);
WASI_TRACE("fd:%d, path:%s", fd, path);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_path_open)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , dirfd)
m3ApiGetArg (__wasi_lookupflags_t , dirflags)
m3ApiGetArgMem (const char * , path)
m3ApiGetArg (__wasi_size_t , path_len)
m3ApiGetArg (__wasi_oflags_t , oflags)
m3ApiGetArg (__wasi_rights_t , fs_rights_base)
m3ApiGetArg (__wasi_rights_t , fs_rights_inheriting)
m3ApiGetArg (__wasi_fdflags_t , fs_flags)
m3ApiGetArgMem (__wasi_fd_t * , fd)
m3ApiCheckMem(path, path_len);
m3ApiCheckMem(fd, sizeof(__wasi_fd_t));
__wasi_errno_t ret = __wasi_path_open(dirfd,
dirflags,
path,
path_len,
oflags,
fs_rights_base,
fs_rights_inheriting,
fs_flags,
fd);
WASI_TRACE("dirfd:%d, dirflags:0x%x, path:%s, oflags:0x%x, fs_flags:0x%x | fd:%d", dirfd, dirflags, path, oflags, fs_flags, *fd);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_unstable_path_filestat_get)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArg (__wasi_lookupflags_t , flags)
m3ApiGetArgMem (const char * , path)
m3ApiGetArg (uint32_t , path_len)
m3ApiGetArgMem (uint8_t * , buf)
m3ApiCheckMem(path, path_len);
m3ApiCheckMem(buf, 56); // wasi_filestat_t
__wasi_filestat_t stat;
__wasi_errno_t ret = __wasi_path_filestat_get(fd, flags, path, path_len, &stat);
WASI_TRACE("fd:%d, flags:0x%x, path:%s | fs.size:%d", fd, flags, path, stat.st_size);
if (ret != __WASI_ERRNO_SUCCESS) {
m3ApiReturn(ret);
}
memset(buf, 0, 56);
m3ApiWriteMem64(buf+0, stat.st_dev);
m3ApiWriteMem64(buf+8, stat.st_ino);
m3ApiWriteMem8 (buf+16, stat.st_filetype);
m3ApiWriteMem32(buf+20, stat.st_nlink);
m3ApiWriteMem64(buf+24, stat.st_size);
m3ApiWriteMem64(buf+32, stat.st_atim);
m3ApiWriteMem64(buf+40, stat.st_mtim);
m3ApiWriteMem64(buf+48, stat.st_ctim);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_snapshot_preview1_path_filestat_get)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArg (__wasi_lookupflags_t , flags)
m3ApiGetArgMem (const char * , path)
m3ApiGetArg (uint32_t , path_len)
m3ApiGetArgMem (uint8_t * , buf)
m3ApiCheckMem(path, path_len);
m3ApiCheckMem(buf, 64); // wasi_filestat_t
__wasi_filestat_t stat;
__wasi_errno_t ret = __wasi_path_filestat_get(fd, flags, path, path_len, &stat);
WASI_TRACE("fd:%d, flags:0x%x, path:%s | fs.size:%d", fd, flags, path, stat.st_size);
if (ret != __WASI_ERRNO_SUCCESS) {
m3ApiReturn(ret);
}
memset(buf, 0, 64);
m3ApiWriteMem64(buf+0, stat.st_dev);
m3ApiWriteMem64(buf+8, stat.st_ino);
m3ApiWriteMem8 (buf+16, stat.st_filetype);
m3ApiWriteMem64(buf+24, stat.st_nlink);
m3ApiWriteMem64(buf+32, stat.st_size);
m3ApiWriteMem64(buf+40, stat.st_atim);
m3ApiWriteMem64(buf+48, stat.st_mtim);
m3ApiWriteMem64(buf+56, stat.st_ctim);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_fd_pread)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArgMem (__wasi_iovec_t * , wasi_iovs)
m3ApiGetArg (__wasi_size_t , iovs_len)
m3ApiGetArg (__wasi_filesize_t , offset)
m3ApiGetArgMem (__wasi_size_t * , nread)
m3ApiCheckMem(wasi_iovs, iovs_len * sizeof(__wasi_iovec_t));
m3ApiCheckMem(nread, sizeof(__wasi_size_t));
__wasi_iovec_t iovs[iovs_len];
const void* mem_check = copy_iov_to_host(runtime, _mem, iovs, wasi_iovs, iovs_len);
if (mem_check != m3Err_none) {
return mem_check;
}
__wasi_errno_t ret = __wasi_fd_pread(fd, iovs, iovs_len, offset, nread);
WASI_TRACE("fd:%d | nread:%d", fd, *nread);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_fd_read)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArgMem (__wasi_iovec_t * , wasi_iovs)
m3ApiGetArg (__wasi_size_t , iovs_len)
m3ApiGetArgMem (__wasi_size_t * , nread)
m3ApiCheckMem(wasi_iovs, iovs_len * sizeof(__wasi_iovec_t));
m3ApiCheckMem(nread, sizeof(__wasi_size_t));
__wasi_iovec_t iovs[iovs_len];
const void* mem_check = copy_iov_to_host(runtime, _mem, iovs, wasi_iovs, iovs_len);
if (mem_check != m3Err_none) {
return mem_check;
}
__wasi_errno_t ret = __wasi_fd_read(fd, iovs, iovs_len, nread);
WASI_TRACE("fd:%d | nread:%d", fd, *nread);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_fd_write)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArgMem (__wasi_iovec_t * , wasi_iovs)
m3ApiGetArg (__wasi_size_t , iovs_len)
m3ApiGetArgMem (__wasi_size_t * , nwritten)
m3ApiCheckMem(wasi_iovs, iovs_len * sizeof(__wasi_iovec_t));
m3ApiCheckMem(nwritten, sizeof(__wasi_size_t));
__wasi_iovec_t iovs[iovs_len];
const void* mem_check = copy_iov_to_host(runtime, _mem, iovs, wasi_iovs, iovs_len);
if (mem_check != m3Err_none) {
return mem_check;
}
__wasi_errno_t ret = __wasi_fd_write(fd, (__wasi_ciovec_t*)iovs, iovs_len, nwritten);
WASI_TRACE("fd:%d | nwritten:%d", fd, *nwritten);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_fd_pwrite)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArgMem (__wasi_iovec_t * , wasi_iovs)
m3ApiGetArg (__wasi_size_t , iovs_len)
m3ApiGetArg (__wasi_filesize_t , offset)
m3ApiGetArgMem (__wasi_size_t * , nwritten)
m3ApiCheckMem(wasi_iovs, iovs_len * sizeof(__wasi_iovec_t));
m3ApiCheckMem(nwritten, sizeof(__wasi_size_t));
__wasi_iovec_t iovs[iovs_len];
const void* mem_check = copy_iov_to_host(runtime, _mem, iovs, wasi_iovs, iovs_len);
if (mem_check != m3Err_none) {
return mem_check;
}
__wasi_errno_t ret = __wasi_fd_pwrite(fd, (__wasi_ciovec_t*)iovs, iovs_len, offset, nwritten);
WASI_TRACE("fd:%d | nwritten:%d", fd, *nwritten);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_fd_readdir)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t , fd)
m3ApiGetArgMem (void * , buf)
m3ApiGetArg (__wasi_size_t , buf_len)
m3ApiGetArg (__wasi_dircookie_t , cookie)
m3ApiGetArgMem (__wasi_size_t * , bufused)
m3ApiCheckMem(buf, buf_len);
m3ApiCheckMem(bufused, sizeof(__wasi_size_t));
__wasi_errno_t ret = __wasi_fd_readdir(fd, buf, buf_len, cookie, bufused);
WASI_TRACE("fd:%d | bufused:%d", fd, *bufused);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_fd_close)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t, fd)
__wasi_errno_t ret = __wasi_fd_close(fd);
WASI_TRACE("fd:%d", fd);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_fd_datasync)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_fd_t, fd)
__wasi_errno_t ret = __wasi_fd_datasync(fd);
WASI_TRACE("fd:%d", fd);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_random_get)
{
m3ApiReturnType (uint32_t)
m3ApiGetArgMem (uint8_t * , buf)
m3ApiGetArg (__wasi_size_t , buf_len)
m3ApiCheckMem(buf, buf_len);
__wasi_errno_t ret = __wasi_random_get(buf, buf_len);
WASI_TRACE("len:%d", buf_len);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_clock_res_get)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_clockid_t , wasi_clk_id)
m3ApiGetArgMem (__wasi_timestamp_t * , resolution)
m3ApiCheckMem(resolution, sizeof(__wasi_timestamp_t));
__wasi_errno_t ret = __wasi_clock_res_get(wasi_clk_id, resolution);
WASI_TRACE("clk_id:%d", wasi_clk_id);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_clock_time_get)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_clockid_t , wasi_clk_id)
m3ApiGetArg (__wasi_timestamp_t , precision)
m3ApiGetArgMem (__wasi_timestamp_t * , time)
m3ApiCheckMem(time, sizeof(__wasi_timestamp_t));
__wasi_errno_t ret = __wasi_clock_time_get(wasi_clk_id, precision, time);
WASI_TRACE("clk_id:%d", wasi_clk_id);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_poll_oneoff)
{
m3ApiReturnType (uint32_t)
m3ApiGetArgMem (const __wasi_subscription_t * , in)
m3ApiGetArgMem (__wasi_event_t * , out)
m3ApiGetArg (__wasi_size_t , nsubscriptions)
m3ApiGetArgMem (__wasi_size_t * , nevents)
m3ApiCheckMem(in, nsubscriptions * sizeof(__wasi_subscription_t));
m3ApiCheckMem(out, nsubscriptions * sizeof(__wasi_event_t));
m3ApiCheckMem(nevents, sizeof(__wasi_size_t));
__wasi_errno_t ret = __wasi_poll_oneoff(in, out, nsubscriptions, nevents);
WASI_TRACE("nsubscriptions:%d | nevents:%d", nsubscriptions, *nevents);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_proc_exit)
{
m3ApiGetArg (uint32_t, code)
m3_wasi_context_t* context = (m3_wasi_context_t*)(_ctx->userdata);
if (context) {
context->exit_code = code;
}
m3ApiTrap(m3Err_trapExit);
}
m3ApiRawFunction(m3_wasi_generic_proc_raise)
{
m3ApiReturnType (uint32_t)
m3ApiGetArg (__wasi_signal_t, sig)
__wasi_errno_t ret = __WASI_ERRNO_INVAL;
#ifdef USE_NEW_WASI
ret = __wasi_proc_raise(sig);
#endif
WASI_TRACE("sig:%d", sig);
m3ApiReturn(ret);
}
m3ApiRawFunction(m3_wasi_generic_sched_yield)
{
m3ApiReturnType (uint32_t)
__wasi_errno_t ret = __wasi_sched_yield();
WASI_TRACE("");
m3ApiReturn(ret);
}
static
M3Result SuppressLookupFailure(M3Result i_result)
{
if (i_result == m3Err_functionLookupFailed)
return m3Err_none;
else
return i_result;
}
m3_wasi_context_t* m3_GetWasiContext()
{
return wasi_context;
}
M3Result m3_LinkWASI (IM3Module module)
{
M3Result result = m3Err_none;
if (!wasi_context) {
wasi_context = (m3_wasi_context_t*)malloc(sizeof(m3_wasi_context_t));
wasi_context->exit_code = 0;
wasi_context->argc = 0;
wasi_context->argv = 0;
}
static const char* namespaces[2] = { "wasi_unstable", "wasi_snapshot_preview1" };
// Some functions are incompatible between WASI versions
_ (SuppressLookupFailure (m3_LinkRawFunction (module, "wasi_unstable", "fd_seek", "i(iIi*)", &m3_wasi_unstable_fd_seek)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, "wasi_snapshot_preview1", "fd_seek", "i(iIi*)", &m3_wasi_snapshot_preview1_fd_seek)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, "wasi_unstable", "fd_filestat_get", "i(i*)", &m3_wasi_unstable_fd_filestat_get)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, "wasi_snapshot_preview1", "fd_filestat_get", "i(i*)", &m3_wasi_snapshot_preview1_fd_filestat_get)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, "wasi_unstable", "path_filestat_get", "i(ii*i*)", &m3_wasi_unstable_path_filestat_get)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, "wasi_snapshot_preview1", "path_filestat_get", "i(ii*i*)", &m3_wasi_snapshot_preview1_path_filestat_get)));
for (int i=0; i<2; i++)
{
const char* wasi = namespaces[i];
_ (SuppressLookupFailure (m3_LinkRawFunctionEx (module, wasi, "args_get", "i(**)", &m3_wasi_generic_args_get, wasi_context)));
_ (SuppressLookupFailure (m3_LinkRawFunctionEx (module, wasi, "args_sizes_get", "i(**)", &m3_wasi_generic_args_sizes_get, wasi_context)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "clock_res_get", "i(i*)", &m3_wasi_generic_clock_res_get)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "clock_time_get", "i(iI*)", &m3_wasi_generic_clock_time_get)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "environ_get", "i(**)", &m3_wasi_generic_environ_get)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "environ_sizes_get", "i(**)", &m3_wasi_generic_environ_sizes_get)));
//_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "fd_advise", "i(iIIi)", )));
//_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "fd_allocate", "i(iII)", )));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "fd_close", "i(i)", &m3_wasi_generic_fd_close)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "fd_datasync", "i(i)", &m3_wasi_generic_fd_datasync)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "fd_fdstat_get", "i(i*)", &m3_wasi_generic_fd_fdstat_get)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "fd_fdstat_set_flags", "i(ii)", &m3_wasi_generic_fd_fdstat_set_flags)));
//_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "fd_fdstat_set_rights", "i(iII)", )));
//_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "fd_filestat_set_size", "i(iI)", )));
//_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "fd_filestat_set_times","i(iIIi)", )));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "fd_pread", "i(i*iI*)",&m3_wasi_generic_fd_pread)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "fd_prestat_get", "i(i*)", &m3_wasi_generic_fd_prestat_get)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "fd_prestat_dir_name", "i(i*i)", &m3_wasi_generic_fd_prestat_dir_name)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "fd_pwrite", "i(i*iI*)",&m3_wasi_generic_fd_pwrite)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "fd_read", "i(i*i*)", &m3_wasi_generic_fd_read)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "fd_readdir", "i(i*iI*)",&m3_wasi_generic_fd_readdir)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "fd_renumber", "i(ii)", &m3_wasi_generic_fd_renumber)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "fd_sync", "i(i)", &m3_wasi_generic_fd_sync)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "fd_tell", "i(i*)", &m3_wasi_generic_fd_tell)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "fd_write", "i(i*i*)", &m3_wasi_generic_fd_write)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "path_create_directory", "i(i*i)", &m3_wasi_generic_path_create_directory)));
//_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "path_filestat_set_times", "i(ii*iIIi)", )));
//_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "path_link", "i(ii*ii*i)", )));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "path_open", "i(ii*iiIIi*)", &m3_wasi_generic_path_open)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "path_readlink", "i(i*i*i*)", &m3_wasi_generic_path_readlink)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "path_remove_directory", "i(i*i)", &m3_wasi_generic_path_remove_directory)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "path_rename", "i(i*ii*i)", &m3_wasi_generic_path_rename)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "path_symlink", "i(*ii*i)", &m3_wasi_generic_path_symlink)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "path_unlink_file", "i(i*i)", &m3_wasi_generic_path_unlink_file)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "poll_oneoff", "i(**i*)", &m3_wasi_generic_poll_oneoff)));
_ (SuppressLookupFailure (m3_LinkRawFunctionEx (module, wasi, "proc_exit", "v(i)", &m3_wasi_generic_proc_exit, wasi_context)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "proc_raise", "i(i)", &m3_wasi_generic_proc_raise)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "random_get", "i(*i)", &m3_wasi_generic_random_get)));
_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "sched_yield", "i()", &m3_wasi_generic_sched_yield)));
//_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "sock_recv", "i(i*ii**)", )));
//_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "sock_send", "i(i*ii*)", )));
//_ (SuppressLookupFailure (m3_LinkRawFunction (module, wasi, "sock_shutdown", "i(ii)", )));
}
_catch:
return result;
}
#endif // d_m3HasMetaWASI