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[Memory64] wasi JS changes for 64-bit #15224

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Merged
merged 1 commit into from
Oct 7, 2021
Merged

[Memory64] wasi JS changes for 64-bit #15224

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19 changes: 11 additions & 8 deletions src/library_wasi.js
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Original file line number Diff line number Diff line change
Expand Up @@ -90,15 +90,16 @@ var WasiLibrary = {
args_sizes_get__nothrow: true,
args_sizes_get__sig: 'iii',
args_sizes_get: function(pargc, pargv_buf_size) {
{{{ from64(['pargc', 'pargv_buf_size']) }}};
#if MAIN_READS_PARAMS
{{{ makeSetValue('pargc', 0, 'mainArgs.length', 'i32') }}};
{{{ makeSetValue('pargc', 0, 'mainArgs.length', SIZE_TYPE) }}};
var bufSize = 0;
mainArgs.forEach(function(arg) {
bufSize += arg.length + 1;
});
{{{ makeSetValue('pargv_buf_size', 0, 'bufSize', 'i32') }}};
{{{ makeSetValue('pargv_buf_size', 0, 'bufSize', SIZE_TYPE) }}};
#else
{{{ makeSetValue('pargc', 0, '0', 'i32') }}};
{{{ makeSetValue('pargc', 0, '0', SIZE_TYPE) }}};
#endif
return 0;
},
Expand All @@ -109,11 +110,12 @@ var WasiLibrary = {
args_get__deps: ['$writeAsciiToMemory'],
#endif
args_get: function(argv, argv_buf) {
{{{ from64(['argv', 'argv_buf']) }}};
#if MAIN_READS_PARAMS
var bufSize = 0;
mainArgs.forEach(function(arg, i) {
var ptr = argv_buf + bufSize;
{{{ makeSetValue('argv', 'i * 4', 'ptr', 'i32') }}};
{{{ makeSetValue('argv', `i*${Runtime.POINTER_SIZE}`, 'ptr', `${POINTER_TYPE}`) }}};
writeAsciiToMemory(arg, ptr);
bufSize += arg.length + 1;
});
Expand Down Expand Up @@ -181,7 +183,7 @@ var WasiLibrary = {
#if SYSCALLS_REQUIRE_FILESYSTEM == 0 && (!MINIMAL_RUNTIME || EXIT_RUNTIME)
$flush_NO_FILESYSTEM: function() {
// flush anything remaining in the buffers during shutdown
if (typeof _fflush !== 'undefined') _fflush(0);
if (typeof _fflush !== 'undefined') _fflush({{{ pointerT(0) }}});
var buffers = SYSCALLS.buffers;
if (buffers[1].length) SYSCALLS.printChar(1, {{{ charCode("\n") }}});
if (buffers[2].length) SYSCALLS.printChar(2, {{{ charCode("\n") }}});
Expand All @@ -193,22 +195,23 @@ var WasiLibrary = {
#endif
fd_write__sig: 'iiiii',
fd_write: function(fd, iov, iovcnt, pnum) {
{{{ from64(['iov', 'iovcnt', 'pnum']) }}};
#if SYSCALLS_REQUIRE_FILESYSTEM
var stream = SYSCALLS.getStreamFromFD(fd);
var num = SYSCALLS.doWritev(stream, iov, iovcnt);
#else
// hack to support printf in SYSCALLS_REQUIRE_FILESYSTEM=0
var num = 0;
for (var i = 0; i < iovcnt; i++) {
var ptr = {{{ makeGetValue('iov', 'i*8', 'i32') }}};
var len = {{{ makeGetValue('iov', 'i*8 + 4', 'i32') }}};
var ptr = {{{ makeGetValue('iov', `i*${Runtime.POINTER_SIZE}*2`, `${POINTER_TYPE}`) }}};
var len = {{{ makeGetValue('iov', `i*${Runtime.POINTER_SIZE}*2 + ${Runtime.POINTER_SIZE}`, `${POINTER_TYPE}`) }}};
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We should probably be using C_STRUCTS stuff here.. I can look into that as a followup.

for (var j = 0; j < len; j++) {
SYSCALLS.printChar(fd, HEAPU8[ptr+j]);
}
num += len;
}
#endif // SYSCALLS_REQUIRE_FILESYSTEM
{{{ makeSetValue('pnum', 0, 'num', 'i32') }}}
{{{ makeSetValue('pnum', 0, 'num', `${SIZE_TYPE}`) }}}
return 0;
},

Expand Down
2 changes: 1 addition & 1 deletion src/parseTools.js
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Original file line number Diff line number Diff line change
Expand Up @@ -207,7 +207,7 @@ function isPointerType(type) {
return type[type.length - 1] == '*';
}

function sizeT(x) {
function pointerT(x) {
return MEMORY64 ? `BigInt(${x})` : x;
}

Expand Down