Commit `11903436a9`

Tw <tw19881113@gmail.com>

2023-03-28 10:26:24

llvm/bpf: disable llvm builtins for bpf target

As bpf program has no global section for constant values (especially strings), so use llvm's builtins (like memcpy, memset, etc) will lead to compilation failure (something like this: A call to built-in function 'memcpy' is not supported.) Signed-off-by: Tw <tw19881113@gmail.com>

master

1 parent 9c3bea8

Changed files (1)

src

codegen

llvm.zig

@@ -2719,6 +2719,9 @@ pub const DeclGen = struct {
         if (comp.bin_file.options.llvm_cpu_features) |s| {
             llvm_fn.addFunctionAttr("target-features", s);
         }
+        if (comp.getTarget().cpu.arch.isBpf()) {
+            llvm_fn.addFunctionAttr("no-builtins", "");
+        }
     }
 
     fn resolveGlobalDecl(dg: *DeclGen, decl_index: Module.Decl.Index) Error!*llvm.Value {

Commit 11903436a9

Commit `11903436a9`