compile: Support relocation to GNU-IFUNCs

Calling memcpy() could fail as memcpy() from libc is GNU-IFUNC.

gdb/ChangeLog
2015-05-06  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* compile/compile-object-load.c (compile_object_load): Support
	mst_text_gnu_ifunc.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 4bfb619..9939658 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,10 @@
 2015-05-06  Jan Kratochvil  <jan.kratochvil@redhat.com>
 
+       * compile/compile-object-load.c (compile_object_load): Support
+       mst_text_gnu_ifunc.
+
+2015-05-06  Jan Kratochvil  <jan.kratochvil@redhat.com>
+
        * compile/compile.c (compile_to_object): Make the cmd_string parameter
        const.  Use new variables for the const compatibility.
        (eval_compile_command): Make the cmd_string parameter const.

diff --git a/gdb/compile/compile-object-load.c b/gdb/compile/compile-object-load.c
index 8a7f232..fe23448 100644 (file)
--- a/gdb/compile/compile-object-load.c
+++ b/gdb/compile/compile-object-load.c
@@ -554,6 +554,10 @@ compile_object_load (const char *object_file, const char *source_file)
        case mst_text:
          sym->value = BMSYMBOL_VALUE_ADDRESS (bmsym);
          break;
+       case mst_text_gnu_ifunc:
+         sym->value = gnu_ifunc_resolve_addr (target_gdbarch (),
+                                              BMSYMBOL_VALUE_ADDRESS (bmsym));
+         break;
        default:
          warning (_("Could not find symbol \"%s\" "
                     "for compiled module \"%s\"."),