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[PATCHv2] Add a way to bypass the PLT when calling getauxval
- From: "Tulio Magno Quites Machado Filho" <tuliom at linux dot vnet dot ibm dot com>
- To: libc-alpha at sourceware dot org
- Cc: pc at us dot ibm dot com, joseph at codesourcery dot com
- Date: Thu, 25 May 2017 17:06:05 -0300
- Subject: [PATCHv2] Add a way to bypass the PLT when calling getauxval
- Authentication-results: sourceware.org; auth=none
- References: <alpine.DEB.2.20.1705241951001.9182@digraph.polyomino.org.uk>
2017-05-25 Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
* include/sys/auxv.h (__getauxval): Add a prototype and its
libc_hidden_proto.
* misc/getauxval.c (__getauxval): Use libc_hidden_def.
---
include/sys/auxv.h | 7 +++++++
misc/getauxval.c | 1 +
2 files changed, 8 insertions(+)
diff --git a/include/sys/auxv.h b/include/sys/auxv.h
index dede2c3..d46008e 100644
--- a/include/sys/auxv.h
+++ b/include/sys/auxv.h
@@ -1 +1,8 @@
#include <misc/sys/auxv.h>
+
+#ifndef _ISOMAC
+
+extern __typeof(getauxval) __getauxval;
+libc_hidden_proto (__getauxval)
+
+#endif /* !_ISOMAC */
diff --git a/misc/getauxval.c b/misc/getauxval.c
index c83fbce..14f4298 100644
--- a/misc/getauxval.c
+++ b/misc/getauxval.c
@@ -43,3 +43,4 @@ __getauxval (unsigned long int type)
}
weak_alias (__getauxval, getauxval)
+libc_hidden_def (__getauxval)
--
2.1.0