1 files changed, 162 insertions, 0 deletions
diff --git a/build/unix/elfhack/test.c b/build/unix/elfhack/test.c
new file mode 100644
index 0000000000..3393f03b58
--- /dev/null
+++ b/build/unix/elfhack/test.c
@@ -0,0 +1,162 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifdef DEF
+DEF(This)
+DEF(is)
+DEF(a)
+DEF(test)
+DEF(of)
+DEF(string)
+DEF(array)
+DEF(for)
+DEF(use)
+DEF(with)
+DEF(elfhack)
+DEF(to)
+DEF(see)
+DEF(whether)
+DEF(it)
+DEF(breaks)
+DEF(anything)
+DEF(but)
+DEF(one)
+DEF(needs)
+DEF(quite)
+DEF(some)
+DEF(strings)
+DEF(before)
+DEF(the)
+DEF(program)
+DEF(can)
+DEF(do)
+DEF(its)
+DEF(work)
+DEF(efficiently)
+DEF(Without)
+DEF(enough)
+DEF(data)
+DEF(relocation)
+DEF(sections)
+DEF(are)
+DEF(not)
+DEF(sufficiently)
+DEF(large)
+DEF(and)
+DEF(injected)
+DEF(code)
+DEF(wouldnt)
+DEF(fit)
+DEF(Said)
+DEF(otherwise)
+DEF(we)
+DEF(need)
+DEF(more)
+DEF(words)
+DEF(than)
+DEF(up)
+DEF(here)
+DEF(so)
+DEF(that)
+DEF(relocations)
+DEF(take)
+DEF(significant)
+DEF(bytes)
+DEF(amounts)
+DEF(which)
+DEF(isnt)
+DEF(exactly)
+DEF(easily)
+DEF(achieved)
+DEF(like)
+DEF(this)
+DEF(Actually)
+DEF(I)
+DEF(must)
+DEF(cheat)
+DEF(by)
+DEF(including)
+DEF(these)
+DEF(phrases)
+DEF(several)
+DEF(times)
+
+#else
+#pragma GCC visibility push(default)
+#include <stdlib.h>
+#include <stdio.h>
+
+#define DEF(w) static const char str_ ## w[] = #w;
+#include "test.c"
+#undef DEF
+
+const char *strings[] = {
+#define DEF(w) str_ ## w,
+#include "test.c"
+#include "test.c"
+#include "test.c"
+};
+
+/* Create a hole between two zones of relative relocations */
+const int hole[] = {
+    42, 42, 42, 42
+};
+
+const char *strings2[] = {
+#include "test.c"
+#include "test.c"
+#include "test.c"
+#include "test.c"
+#include "test.c"
+#undef DEF
+};
+
+static int ret = 1;
+
+int print_status() {
+    fprintf(stderr, "%s\n", ret ? "FAIL" : "PASS");
+    return ret;
+}
+
+/* On ARM, this creates a .tbss section before .init_array, which
+ * elfhack could then pick instead of .init_array.
+ * Also, when .tbss is big enough, elfhack may wrongfully consider
+ * following sections as part of the PT_TLS segment.
+ * Finally, gold makes TLS segments end on an aligned virtual address,
+ * even when the underlying section ends before that, and elfhack
+ * sanity checks may yield an error. */
+__thread int foo;
+__thread long long int bar[512];
+
+void end_test() {
+    static int count = 0;
+    /* Only exit when both constructors have been called */
+    if (++count == 2)
+        ret = 0;
+}
+
+void test() {
+    int i = 0, j = 0;
+#define DEF_(a,i,w) \
+    if (a[i++] != str_ ## w) return;
+#define DEF(w) DEF_(strings,i,w)
+#include "test.c"
+#include "test.c"
+#include "test.c"
+#undef DEF
+#define DEF(w) DEF_(strings2,j,w)
+#include "test.c"
+#include "test.c"
+#include "test.c"
+#include "test.c"
+#include "test.c"
+#undef DEF
+    if (i != sizeof(strings)/sizeof(strings[0]) &&
+        j != sizeof(strings2)/sizeof(strings2[0]))
+        fprintf(stderr, "WARNING: Test doesn't cover the whole array\n");
+    end_test();
+}
+
+#pragma GCC visibility pop
+#endif