Patchwork [v2,4/9] compile: Support relocation to GNU-IFUNCs

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Submitter Jan Kratochvil
Date April 6, 2015, 5:26 p.m.
Message ID <20150406172654.31404.63699.stgit@host1.jankratochvil.net>
Download mbox | patch
Permalink /patch/6020/
State New
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Comments

Jan Kratochvil - April 6, 2015, 5:26 p.m.
The 'compile print' part disclosed that calling memcpy() may fail as memcpy()
from libc is GNU-IFUNC.

gdb/ChangeLog
2015-04-06  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* compile/compile-object-load.c (compile_object_load): Support
	mst_text_gnu_ifunc.
---
 gdb/compile/compile-object-load.c |    4 ++++
 1 file changed, 4 insertions(+)

Patch

diff --git a/gdb/compile/compile-object-load.c b/gdb/compile/compile-object-load.c
index 70b2e2e..ed2cad4 100644
--- a/gdb/compile/compile-object-load.c
+++ b/gdb/compile/compile-object-load.c
@@ -555,6 +555,10 @@  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\"."),