Instead of polyfilling it with vm.SourceTextModule,
use a built-in source text module loader so that we can
also build the code cache for it at build tiem to
embed the code cache for them in the binary.
Drive-by: instead of inferring how to compile a particular
built-in at run time, do the inferring at build time,
so the function-based built-ins can be compiled using
parameters quickly looked up from a static map, and
the builtins that should be compiled as source text
modules are known internally based on extension in
the source code (at run time, the extensions are all
removed).
PR-URL: https://github.com/nodejs/node/pull/60518
Reviewed-By: Aditi Singh <aditisingh1400@gmail.com>
Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
`node --prof-process` on macOS calls out to nm(1) to look up C++
symbols. If Xcode hasn't been properly installed or its license
hasn't been accepted yet, it prints out an error and exits.
Before this commit, that error was swallowed and the output of
the tick processor was not showing the C++ entry points.
This commit detects that error message and turns it into an
exception. No regression test because this particular condition
is hard to test for without going to extreme lengths to mock
the output of nm.
Fixes: https://github.com/nodejs/node/issues/29804
PR-URL: https://github.com/nodejs/node/pull/29830
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Minwoo Jung <minwoo@nodesource.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
`node --prof foo.js` may not print the full profile log file, leaving
the last line broken (for example `tick,`. When that happens, `readline`
will be stuck in an infinite loop. This patch fixes it.
Also introduced `common.isCPPSymbolsNotMapped` to avoid duplicated code
on tick-processor tests.
PR-URL: https://github.com/nodejs/node/pull/18641
Reviewed-By: Khaidi Chu <i@2333.moe>
Reviewed-By: Matheus Marchini <matheus@sthima.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
`/bin/sh -c` trick wasn't working for several reasons:
* `/bin/sh -c "..."` expects the first argument after `"..."` to be a
`$0`, not a `$1`. Previously `-n` wasn't passed to `nm` because of
this, and many symbols were ordered improperly
* `c++filt` was applied not only to the names of the functions but to
their `nm` prefixes like `t` and `a` (`t xxx` turns into
`unsigned char xxx`).
Instead of applying `c++filt` wide and using `sh -c`, execute `nm` as
requested by `deps/v8/tools/tickprocessor.js` and apply `c++filt` to all
matching entries manually.
Included test demonstrates where previous approach failed: all builtins
were merged into `v8::internal::Builtins::~Builtins`, because they were
prefixed by `t` in `nm` output.
PR-URL: https://github.com/nodejs/node/pull/8480
Reviewed-By: Matthew Loring <mattloring@google.com>
Several changes:
* Soft-Deprecate Buffer() constructors
* Add `Buffer.from()`, `Buffer.alloc()`, and `Buffer.allocUnsafe()`
* Add `--zero-fill-buffers` command line option
* Add byteOffset and length to `new Buffer(arrayBuffer)` constructor
* buffer.fill('') previously had no effect, now zero-fills
* Update the docs
PR-URL: https://github.com/nodejs/node/pull/4682
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
This change cleans up outstanding comments on #3032. It improves error
handling when no isolate file is provided and adds the --prof-process
flag to the node binary which executes the tick processor on the
provided isolate file.
PR-URL: https://github.com/nodejs/node/pull/4021
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Evan Lucas <evanlucas@me.com>
