[webkit-dev] jsc bus error EXC_BAD_ACCESS with jsc-only build on Mac

[Adrian Perez de Castro]

Hi Laurence,

On Tue, 28 Mar 2023 18:57:48 -0500 Laurence Rowe via webkit-dev <webkit-dev at lists.webkit.org> wrote:
 
> So build-jsc without the —jsc-only works:
> 
> lrowe at Laurences-MacBook-Air WebKit %
> ./WebKitBuild/Release/JavaScriptCore.framework/Helpers/jsc
> 
> >>> print(1+1)
> 2
> 
> I was hoping to try and wrap the jsc-only build into a rust crate since the
> existing rust wrappers either include gtk dependencies or only wrap the
> lower level api and link against the system libraries. Though it is looking
> like I lack the C++ build experience to pull that off!

In the case of the WebKit GTK port, there is a “libjavascriptcoregtk-X.Y”
(where X.Y is the API level) that you can link to without pulling in the
GTK librariesa. For example on my Linux box this is what pkg-config will
bring in for linking:

  % pkg-config javascriptcoregtk-4.1 --libs
  -ljavascriptcoregtk-4.1 -lgobject-2.0 -lglib-2.0
  %

Note how there is no GUI libraries there at all. If existing Rust wrappers
are linking also the rest of the GTK libraries, probably they are using the
“webkit2gtk-X.Y” pkg-config module instead. That sounds like a bug in how
the Rust crates are being built and linked.

Cheers,
—Adrián
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