commit 0cbf89c7520e5d27076f74659b28636e0456ef68
author Nicolas Capens <capn@google.com> Wed Jan 27 15:27:08 2021 -0500
committer Nicolas Capens <nicolascapens@google.com> Thu Jan 28 21:45:58 2021 +0000
tree 93687e71a9f0c466261143f4841c06991c3c4f2f
parent 1a094f182b763f8bbfb8332a690bc37ab1ebebae

Enable named mmap usage for Chromium

Naming 'anonymous' mmap memory, which we use for Reactor's executable
memory, enables profilers to attribute JIT-compiled routine execution
to SwiftShader.

Also rename `swiftshader_reactor_private_config` to
`swiftshader_llvm_reactor_private_config` to clarify that it is only used
for building Reactor with the LLVM backend.

Bug: b/174801963
Change-Id: I4a6cb471b00f8403978870fd0be4608ee2798e54
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/52208
Presubmit-Ready: Nicolas Capens <nicolascapens@google.com>
Kokoro-Result: kokoro <noreply+kokoro@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>

src/Reactor/BUILD.gn

diff --git a/src/Reactor/BUILD.gn b/src/Reactor/BUILD.gn
index 5dd8cff..c4070fd 100644
--- a/src/Reactor/BUILD.gn
+++ b/src/Reactor/BUILD.gn
@@ -15,7 +15,7 @@
 import("reactor.gni")
 import("../swiftshader.gni")
 
-config("swiftshader_reactor_private_config") {
+config("swiftshader_llvm_reactor_private_config") {
   if (is_win) {
     cflags = [
       "/wd4141",  # 'inline' used more than once. (LLVM 7.0)
@@ -37,6 +37,12 @@
   }
 }
 
+config("swiftshader_reactor_base_private_config") {
+  defines = [
+    "REACTOR_ANONYMOUS_MMAP_NAME=swiftshader_jit",
+  ]
+}
+
 swiftshader_source_set("swiftshader_reactor_base") {
   sources = [
     "Debug.cpp",
@@ -45,6 +51,10 @@
     "OptimalIntrinsics.cpp",
     "Reactor.cpp",
   ]
+
+  configs = [
+      ":swiftshader_reactor_base_private_config",
+  ]
 }
 
 if (supports_subzero) {
@@ -327,7 +337,7 @@
       "LLVMReactor.cpp",
     ]
 
-    configs = [ ":swiftshader_reactor_private_config" ]
+    configs = [ ":swiftshader_llvm_reactor_private_config" ]
 
     include_dirs = [
       "$llvm_dir/llvm/include/",