If present, use gold's support for getting a file view. This prevents having
to map the file both in the linker and in the plugin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129109 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/gold/gold-plugin.cpp b/tools/gold/gold-plugin.cpp
index ce85789..dd66eae 100644
--- a/tools/gold/gold-plugin.cpp
+++ b/tools/gold/gold-plugin.cpp
@@ -50,6 +50,7 @@
ld_plugin_add_input_file add_input_file = NULL;
ld_plugin_add_input_library add_input_library = NULL;
ld_plugin_set_extra_library_path set_extra_library_path = NULL;
+ ld_plugin_get_view get_view = NULL;
ld_plugin_message message = discard_message;
int api_version = 0;
@@ -205,6 +206,9 @@
case LDPT_SET_EXTRA_LIBRARY_PATH:
set_extra_library_path = tv->tv_u.tv_set_extra_library_path;
break;
+ case LDPT_GET_VIEW:
+ get_view = tv->tv_u.tv_get_view;
+ break;
case LDPT_MESSAGE:
message = tv->tv_u.tv_message;
break;
@@ -232,7 +236,14 @@
int *claimed) {
lto_module_t M;
- if (file->offset) {
+ if (get_view) {
+ const void *view;
+ if (get_view(file->handle, &view) != LDPS_OK) {
+ (*message)(LDPL_ERROR, "Failed to get a view of %s", file->name);
+ return LDPS_ERR;
+ }
+ M = lto_module_create_from_memory(view, file->filesize);
+ } else if (file->offset) {
// Gold has found what might be IR part-way inside of a file, such as
// an .a archive.
M = lto_module_create_from_fd_at_offset(file->fd, file->name, -1,