commit f45d97f0ee4c202602c9951ade622caf2e27ffe2
Author: Stephen Crane <sjc@immunant.com>
Date: Thu Sep 21 14:22:37 2017 -0700
Add plugin API for processing plugin-added input files
Gold plugins may wish to further process an input file added by a plugin. For
example, the plugin may need to assign a unique segment for sections in a
plugin-generated input file. This patch adds a plugin callback that the linker
will call when reading symbols from a new input file added after the
all_symbols_read event (i.e. an input file added by a plugin).
@@ -365,6 +365,20 @@ enum ld_plugin_status
(*ld_plugin_get_input_section_size) (const struct ld_plugin_section section,
uint64_t *secsize);
+typedef
+enum ld_plugin_status
+(*ld_plugin_new_input_handler) (const struct ld_plugin_input_file *file);
+
+/* The linker's interface for registering the "new_input" handler. This handler
+ will be notified when a new input file has been added after the
+ all_symbols_read event, allowing the plugin to, for example, set a unique
+ segment for sections in plugin-generated input files. */
+
+typedef
+enum ld_plugin_status
+(*ld_plugin_register_new_input) (ld_plugin_new_input_handler handler);
+
+
enum ld_plugin_level
{
LDPL_INFO,
@@ -407,7 +421,8 @@ enum ld_plugin_tag
LDPT_UNIQUE_SEGMENT_FOR_SECTIONS = 27,
LDPT_GET_SYMBOLS_V3 = 28,
LDPT_GET_INPUT_SECTION_ALIGNMENT = 29,
- LDPT_GET_INPUT_SECTION_SIZE = 30
+ LDPT_GET_INPUT_SECTION_SIZE = 30,
+ LDPT_REGISTER_NEW_INPUT_HOOK = 31
};
/* The plugin transfer vector. */
@@ -441,6 +456,7 @@ struct ld_plugin_tv
ld_plugin_unique_segment_for_sections tv_unique_segment_for_sections;
ld_plugin_get_input_section_alignment tv_get_input_section_alignment;
ld_plugin_get_input_section_size tv_get_input_section_size;
+ ld_plugin_register_new_input tv_register_new_input;
} tv_u;
};