compiler/rustc_target/src/spec/bpf_base.rs

   1 use crate::abi::Endian;
   2 use crate::spec::{LinkerFlavor, MergeFunctions, PanicStrategy, TargetOptions};
   3
   4 pub fn opts(endian: Endian) -> TargetOptions {
   5     TargetOptions {
   6         allow_asm: true,
   7         endian,
   8         linker_flavor: LinkerFlavor::BpfLinker,
   9         atomic_cas: false,
  10         executables: true,
  11         dynamic_linking: true,
  12         no_builtins: true,
  13         panic_strategy: PanicStrategy::Abort,
  14         position_independent_executables: true,
  15         // Disable MergeFunctions since:
  16         // - older kernels don't support bpf-to-bpf calls
  17         // - on newer kernels, userspace still needs to relocate before calling
  18         //   BPF_PROG_LOAD and not all BPF libraries do that yet
  19         merge_functions: MergeFunctions::Disabled,
  20         obj_is_bitcode: true,
  21         requires_lto: false,
  22         singlethread: true,
  23         max_atomic_width: Some(64),
  24         ..Default::default()
  25     }
  26 }