josephlr · June 20, 2019 09:34 · Jun 20, 2019
diff --git a/perlasm.bzl b/perlasm.bzl
@@ -0,0 +1,25 @@
+load("@bazel_skylib//lib:paths.bzl", "paths")
+
+def perlasm(src, perlasm_utils, name=None):
+  """ Creates a genrule to process the src. Returns rule name."""
+  (filename, ext) = paths.split_extension(paths.basename(src))
+  if ext != ".pl":
+    fail("Provided perlasm file {} must be a Perl file".format(src))
+  if name == None:
+    name = filename
+
+  native.genrule(
+    name = name,
+    srcs = [src] + perlasm_utils,
+    outs = [name + ".S"],
+    cmd = "perl $(rootpath {}) elf $@".format(src),
+  )
+
+  return name
+
+def perlasm_cc_library(perlasm_srcs, perlasm_utils, srcs=[], **kwargs):
+  """Identical to cc_library, except allows for perlasm_srcs."""
+  native.cc_library(
+    srcs = srcs + [":" + perlasm(src, perlasm_utils) for src in perlasm_srcs],
+    **kwargs
+  )