lld – Tarik Billa

How do I change the default rustc / Cargo linker?

September 1, 2023 by Tarik

Thanks to @Jmb comment, I found a solution. Turns out that the default linker that rustc uses is actually cc (which makes sense – it supplies all the needed defaults to compile/link C code, which also work for Rust). We can pass an argument to cc to make it link with lld: [target.x86_64-unknown-linux-gnu] rustflags = … Read more

What’s the difference between `-rpath-link` and `-L`?

May 5, 2023 by Tarik

Here is a demo, for GNU ld, of the difference between -L and -rpath-link – and for good measure, the difference between -rpath-link and -rpath. foo.c #include <stdio.h> void foo(void) { puts(__func__); } bar.c #include <stdio.h> void bar(void) { puts(__func__); } foobar.c extern void foo(void); extern void bar(void); void foobar(void) { foo(); bar(); } main.c … Read more