[Bug target/101215] New: Using non-standard custom linker with -fuse-ld

[freesoftware at logarithmus dot dev via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101215

Bug ID: 101215
   Summary: Using non-standard custom linker with -fuse-ld
   Product: gcc
   Version: 10.2.1
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: target
  Assignee: unassigned at gcc dot gnu.org
  Reporter: freesoftware at logarithmus dot dev
  Target Milestone: ---

Hello. I'd like to have an ability to use custom linkers with gcc.
Unfortunately gcc's `-fuse-ld` option only supports fixed set of linkers: ld,
gold & lld. On the other hand, clang supports passing path to linker's binary
with `-fuse-ld`.

My specific use case is novell `mold` linker: https://github.com/rui314/mold
I know that I can use mold like this: `mold -run gcc `. But it
works by intercepting system calls and changing all calls to `ld` with `mold`.
It looks kinda hacky to be honest. So I think the best solution would be to
implement custom linkers support into gcc.

I've never worked with gcc codebase before, so I'll appreciate any guidance
about implementing this feature.

[Bug driver/93645] Support Clang 12 --ld-path=

[freesoftware at logarithmus dot dev via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93645

--- Comment #9 from Artur Sinila  ---
What's a blocker for this bug? What should be improved in the patch in order
for it to be accepted?