std.os.linux.start_pie is missing support for powerpc64le

[alexrp]

Zig Version

0.13.0

Steps to Reproduce and Observed Behavior

❯ cat main.zig
pub fn main() void {}
❯ zig build-exe main.zig -fPIE -target powerpc64-linux
/home/alexrp/zig/0.13.0/files/lib/std/os/linux/start_pie.zig:19:13: error: Missing R_RELATIVE definition for this target
    else => @compileError("Missing R_RELATIVE definition for this target"),
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
referenced by:
    relocate: /home/alexrp/zig/0.13.0/files/lib/std/os/linux/start_pie.zig:108:31
    posixCallMainAndExit: /home/alexrp/zig/0.13.0/files/lib/std/start.zig:411:29
    remaining reference traces hidden; use '-freference-trace' to see all reference traces
/home/alexrp/zig/0.13.0/files/lib/std/os/linux/start_pie.zig:67:13: error: PIE startup is not yet supported for this target!
            @compileError("PIE startup is not yet supported for this target!");
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Expected Behavior

No compile error.

[alexrp]

@Vexu should I file individual issues for other architectures affected by this (e.g. MIPS), or should we just have this one cover them all?

[Vexu]

I think it's fine to wait until someone runs into the issue.

[alexrp]

Well, I ran into it for PPC and MIPS personally, hence the question. 🙂