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Diffstat (limited to 'gold/testsuite/ehdr_start_test.cc')
-rw-r--r--gold/testsuite/ehdr_start_test.cc67
1 files changed, 67 insertions, 0 deletions
diff --git a/gold/testsuite/ehdr_start_test.cc b/gold/testsuite/ehdr_start_test.cc
new file mode 100644
index 00000000000..a119b5e83c7
--- /dev/null
+++ b/gold/testsuite/ehdr_start_test.cc
@@ -0,0 +1,67 @@
+// ehdr_start_test.cc -- test for __ehdr_start linker-defined symbol.
+
+// Copyright (C) 2014 Free Software Foundation, Inc.
+// Written by Cary Coutant <ccoutant@google.com>.
+
+// This file is part of gold.
+
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+// MA 02110-1301, USA.
+
+// The goal of this program is to produce as many different types of
+// relocations as we can in a stand-alone program that does not use
+// TLS. This program is compiled without optimization.
+
+#include "config.h"
+
+#include <cassert>
+#include <cstdio>
+
+#include "elfcpp.h"
+
+#ifdef EHDR_START_WEAK
+#define WEAK_ATTR __attribute__ ((weak))
+#else
+#define WEAK_ATTR
+#endif
+
+extern char __ehdr_start[] WEAK_ATTR;
+
+int
+main() {
+ printf("&__ehdr_start = %p\n", &__ehdr_start);
+
+#ifdef EHDR_START_UNDEF
+ assert(&__ehdr_start == 0);
+#else
+ assert(&__ehdr_start != NULL);
+
+ printf("ELF header: \\x%02x%c%c%c\n", __ehdr_start[0], __ehdr_start[1],
+ __ehdr_start[2], __ehdr_start[3]);
+#ifdef EHDR_START_USER_DEF
+ assert(__ehdr_start[0] == 'a'
+ && __ehdr_start[1] == 'b'
+ && __ehdr_start[2] == 'c'
+ && __ehdr_start[3] == 'd');
+#else
+ assert(__ehdr_start[elfcpp::EI_MAG0] == elfcpp::ELFMAG0
+ && __ehdr_start[elfcpp::EI_MAG1] == elfcpp::ELFMAG1
+ && __ehdr_start[elfcpp::EI_MAG2] == elfcpp::ELFMAG2
+ && __ehdr_start[elfcpp::EI_MAG3] == elfcpp::ELFMAG3);
+#endif
+#endif
+
+ return 0;
+}