[sysprof] elf: add docs for symbol dirs

[Christian Hergert <chergert src gnome org>]

commit 660634e988ca1ff23f73c85ca6aaa6f40a63cc8b
Author: Christian Hergert <chergert redhat com>
Date:   Sat Feb 25 19:39:31 2017 -0800

    elf: add docs for symbol dirs

 lib/sp-elf-symbol-resolver.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/lib/sp-elf-symbol-resolver.c b/lib/sp-elf-symbol-resolver.c
index 507a6d3..9c31dc2 100644
--- a/lib/sp-elf-symbol-resolver.c
+++ b/lib/sp-elf-symbol-resolver.c
@@ -323,6 +323,15 @@ sp_elf_symbol_resolver_new (void)
   return g_object_new (SP_TYPE_ELF_SYMBOL_RESOLVER, NULL);
 }
 
+/**
+ * sp_elf_symbol_resolver_set_symbol_dirs:
+ * @self: An #SpElfSymbolResolver
+ * @symbol_dirs: (element-type utf8 utf8): Mapping of srcdir to dstdir
+ *
+ * This allows setting a mapping of source paths to destination paths so that
+ * the location of the files with debug symbols can accessed during symbol
+ * resolving.
+ */
 void
 sp_elf_symbol_resolver_set_symbol_dirs (SpElfSymbolResolver *self,
                                         GHashTable          *symbol_dirs)