$NetBSD$

--- base/BUILD.gn.orig	2020-07-15 18:56:44.000000000 +0000
+++ base/BUILD.gn
@@ -60,7 +60,7 @@ declare_args() {
   # replacement base::Location::Current(). On by default in non-official builds
   # for testing purposes.
   # TODO(https://crbug.com/974061): remove this eventually.
-  from_here_uses_location_builtins = !is_official_build
+  from_here_uses_location_builtins = !is_official_build && !is_bsd
 
   # Unsafe developer build. Has developer-friendly features that may weaken or
   # disable security measures like sandboxing or ASLR.
@@ -887,7 +887,7 @@ jumbo_component("base") {
       "timer/hi_res_timer_manager_posix.cc",
     ]
 
-    if (!is_nacl && !is_mac && !is_ios) {
+    if (!is_nacl && !is_mac && !is_ios && !is_bsd) {
       sources += [
         "profiler/stack_copier_signal.cc",
         "profiler/stack_copier_signal.h",
@@ -896,6 +896,12 @@ jumbo_component("base") {
         "profiler/thread_delegate_posix.h",
       ]
     }
+
+    if (is_bsd) {
+      sources += [
+        "profiler/stack_sampler_posix.cc",
+      ]
+    }
   }
 
   if (is_win) {
@@ -1182,7 +1188,7 @@ jumbo_component("base") {
     ]
   }
 
-  if (is_linux) {
+  if (is_linux || is_bsd) {
     sources += [
       "debug/proc_maps_linux.cc",
       "debug/proc_maps_linux.h",
@@ -1233,7 +1239,7 @@ jumbo_component("base") {
       sources += [ "base_paths_posix.h" ]
     }
 
-    if (is_linux) {
+    if (is_linux || is_bsd) {
       sources += [
         "base_paths_posix.cc",
         "debug/elf_reader.cc",
@@ -1287,7 +1293,7 @@ jumbo_component("base") {
   # Needed for <atomic> if using newer C++ library than sysroot, except if
   # building inside the cros_sdk environment - use host_toolchain as a
   # more robust check for this.
-  if (!use_sysroot && (is_android || (is_linux && !is_chromecast)) &&
+  if (!use_sysroot && (is_android || ((is_linux || is_bsd) && !is_chromecast) && !is_clang) &&
       host_toolchain != "//build/toolchain/cros:host") {
     libs += [ "atomic" ]
   }
@@ -1313,7 +1319,7 @@ jumbo_component("base") {
         "allocator/allocator_shim_override_glibc_weak_symbols.h",
       ]
       deps += [ "//base/allocator:tcmalloc" ]
-    } else if (is_linux && use_allocator == "none") {
+    } else if ((is_linux || is_bsd) && use_allocator == "none") {
       sources += [ "allocator/allocator_shim_default_dispatch_to_glibc.cc" ]
     } else if ((is_linux || is_android) && use_allocator == "partition") {
       # Cannot use the same dispatching for host-side binaries.
@@ -1889,7 +1895,7 @@ jumbo_component("base") {
   }
 
   # Linux.
-  if (is_linux) {
+  if (is_linux || is_bsd) {
     # TODO(brettw) this will need to be parameterized at some point.
     linux_configs = []
     if (use_glib) {
@@ -1925,6 +1931,33 @@ jumbo_component("base") {
     }
   }
 
+  if (is_netbsd) {
+    sources -= [
+      "files/file_path_watcher_linux.cc",
+      "files/file_util_linux.cc",
+      "process/memory_linux.cc",
+      "process/process_handle_linux.cc",
+      "process/process_iterator_linux.cc",
+      "process/process_metrics_linux.cc",
+      "system/sys_info_linux.cc"
+    ]
+    sources += [
+      "files/file_path_watcher_kqueue.cc",
+      "files/file_path_watcher_kqueue.h",
+      "files/file_path_watcher_stub.cc",
+      "process/memory_stubs.cc",
+      "process/process_handle_netbsd.cc",
+      "process/process_iterator_netbsd.cc",
+      "process/process_metrics_netbsd.cc",
+      "system/sys_info_netbsd.cc",
+    ]
+    libs += [
+      "execinfo", # logging.cc
+      "kvm",      # process_metrics_freebsd
+      "util"      # process_metrics_freebsd
+    ]
+  }
+
   # iOS
   if (is_ios) {
     sources -= [
@@ -2987,7 +3020,7 @@ test("base_unittests") {
     ]
   }
 
-  if (is_linux) {
+  if (is_linux || is_bsd) {
     sources += [ "debug/proc_maps_linux_unittest.cc" ]
   }
 
@@ -3026,7 +3059,7 @@ test("base_unittests") {
       "posix/unix_domain_socket_unittest.cc",
       "task/thread_pool/task_tracker_posix_unittest.cc",
     ]
-    if (!is_nacl && !is_mac && !is_ios) {
+    if (!is_nacl && !is_mac && !is_ios && !is_bsd) {
       sources += [ "profiler/stack_copier_signal_unittest.cc" ]
     }
   }
@@ -3173,7 +3206,7 @@ test("base_unittests") {
     }
   }
 
-  if (is_fuchsia || is_linux) {
+  if (is_fuchsia || is_linux || is_bsd) {
     sources += [ "debug/elf_reader_unittest.cc" ]
 
     deps += [ "//base/test:malloc_wrapper" ]
@@ -3241,6 +3274,12 @@ test("base_unittests") {
     manifest = "//build/config/fuchsia/tests.cmx"
   }
 
+  if (is_bsd) {
+    sources -= [
+      "debug/proc_maps_linux_unittest.cc",
+    ]
+  }
+
   if (!is_fuchsia && !is_ios) {
     sources += [ "files/file_locking_unittest.cc" ]
   }