Compilation: Add driver/frontend support for pic/pie options

[ehaas]

Some time (real soon now™) I'd like to start writing a simple AST -> x86_64 assembly backend. No IR or optimizations or anything, just something that generates readable/debuggable assembly.

Is that something that you think should be part of aro? Or a separate project that uses aro as a dependency? If it's part of aro I'd want to put it behind a -fsimple-asm or similar type of flag.

[Vexu]

Some time (real soon now™) I'd like to start writing a simple AST -> x86_64 assembly backend. No IR or optimizations or anything, just something that generates readable/debuggable assembly.

Is that something that you think should be part of aro? Or a separate project that uses aro as a dependency? If it's part of aro I'd want to put it behind a -fsimple-asm or similar type of flag.

Absolutely, any kind of functional codegen would be nice. And just -S is fine as far as flags go.

[ehaas]

-S for assembly output makes sense; I was just thinking it would be nice if the toolchain could assemble and link the output; but I didn't want it to interfere with the existing Ir codepath. Maybe something like -O0 for it? So -O0 without -S would generate assembly to a temp file, invoke as, and then add the output to the link objects?

[Vexu]

Right, didn't think of that, using -O0 sounds good.