Squash commits for public release

build/userland/USERLAND_FLAGS.gni

@@ -0,0 +1,140 @@
+uland_c_flags = [
+  "-Werror",
+  "-Wno-address-of-packed-member",
+]
+
+if (userland_symbols) {
+  uland_c_flags += [ "-ggdb" ]
+}
+
+if (optimize) {
+  uland_c_flags += [ "-Os" ]
+}
+
+uland_cc_flags = [
+  "-std=c++2a",
+  "-fno-sized-deallocation",
+  "-fno-exceptions",
+  "-D_LIBCXX_BUILD_XOS_EXTENSIONS",
+]
+
+uland_objcc_flags = uland_cc_flags + [
+                      "-fno-objc-exceptions",
+                      "-fno-objc-arc",
+                    ]
+
+uland_asm_flags = []
+uland_ld_flags = []
+
+if (device_type == "desktop") {
+  uland_c_flags += [ "-DTARGET_DESKTOP" ]
+}
+if (device_type == "mobile") {
+  uland_c_flags += [ "-DTARGET_MOBILE" ]
+}
+
+if (target_arch == "x86") {
+  uland_asm_flags += [
+    "-f",
+    "elf",
+  ]
+}
+
+if (target_arch == "x86_64") {
+  uland_asm_flags += [
+    "-f",
+    "elf64",
+  ]
+}
+
+if (target_arch == "arm32") {
+  uland_c_flags += [
+    "-fno-builtin",
+    "-march=armv7-a",
+    "-mfpu=neon-vfpv4",
+    "-mfloat-abi=softfp",
+    "-fno-pie",
+  ]
+  uland_asm_flags += [
+    "-march=armv7-a",
+    "-mfpu=neon-vfpv4",
+    "-mfloat-abi=softfp",
+    "-mcpu=cortex-a15",
+  ]
+  uland_ld_flags += [ "-nostdlib" ]
+
+  if (host == "gnu") {
+    uland_ld_flags += [
+      "-nostdinc",
+      "-nodefaultlibs",
+      "-nostartfiles",
+      "-lgcc",
+    ]
+  }
+
+  if (host == "llvm") {
+    uland_ld_flags += [
+      "--oformat",
+      "elf32-littlearm",
+      "/usr/lib/llvm-18/lib/clang/18/lib/linux/libclang_rt.builtins-arm.a",
+    ]
+  }
+}
+
+if (target_arch == "arm64") {
+  uland_c_flags += [
+    "-fno-builtin",
+    "-mcpu=cortex-a53+nocrypto+nocrc",
+    "-fno-pie",
+  ]
+  uland_asm_flags += [ "-mcpu=cortex-a53+nocrypto+nocrc" ]
+  uland_ld_flags += [ "-nostdlib" ]
+
+  if (host == "gnu") {
+    uland_ld_flags += [
+      "-nostdinc",
+      "-nodefaultlibs",
+      "-nostartfiles",
+      "-lgcc",
+    ]
+  }
+
+  if (host == "llvm") {
+    uland_ld_flags += [
+      "--oformat",
+      "elf64-littlearm",
+    ]
+  }
+}
+
+if (target_arch == "riscv64") {
+  uland_c_flags += [
+    "-fno-builtin",
+    "-march=rv64ima",
+    "-mabi=lp64",
+  ]
+  uland_asm_flags += [
+    "-march=rv64ima",
+    "-mabi=lp64",
+  ]
+  uland_ld_flags += [ "-nostdlib" ]
+
+  if (host == "gnu") {
+    uland_ld_flags += [
+      "-nostdinc",
+      "-nodefaultlibs",
+      "-nostartfiles",
+      rebase_path("//toolchains/gcc_runtime/10.2.1/riscv64-libgcc.a",
+                root_build_dir),
+    ]
+  }
+
+  if (host == "llvm") {
+    uland_ld_flags += [
+      "--oformat",
+      "elf64",
+      rebase_path("//toolchains/gcc_runtime/10.2.1/riscv64-libgcc.a",
+                root_build_dir),
+    ]
+  }
+}