ld: Add tests for PR ld/32690

Without

commit 230a788eb2
Author: Alan Modra <amodra@gmail.com>
Date:   Tue Feb 18 08:54:06 2025 +1030

    PR32690, assertion failure in lang_size_relro_segment

this test triggers the linker error:

.../ld: internal error .../ld/ldlang.c 6618
collect2: error: ld returned 1 exit status

with GCC 10 or above on x86-64.

	PR ld/32690
	* testsuite/ld-elf/elf.exp: Run PR ld/32690 tests.
	* testsuite/ld-elf/pr32690.h: New file.
	* testsuite/ld-elf/pr32690a.c: Likewise.
	* testsuite/ld-elf/pr32690b.c: Likewise.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>

ld/testsuite/ld-elf/elf.exp

@@ -497,6 +497,17 @@ if { [istarget *-*-linux*]
 	]
     }
 
+    run_cc_link_tests [list \
+	[list \
+	    "Build pr32690.so" \
+	    "-shared" \
+	    "-O2 -fPIC" \
+	    { pr32690b.c } \
+	    {} \
+	    "pr32690.so" \
+	] \
+    ]
+
     run_ld_link_exec_tests [list \
 	[list \
 	    "Run mbind2a" \
@@ -516,6 +527,18 @@ if { [istarget *-*-linux*]
 	    "pass.out" \
 	    "-O2 -I../bfd" \
 	] \
+	[list \
+	    "Run pr32690" \
+	    "-pie -Wl,-z,now" \
+	    "" \
+	    { pr32690a.c } \
+	    "pr32690" \
+	    "pass.out" \
+	    "-O2 -fPIE" \
+	    "C" \
+	    {} \
+	    "-Wl,-R,tmpdir tmpdir/pr32690.so" \
+	] \
     ]
 }
 

ld/testsuite/ld-elf/pr32690.h

@@ -0,0 +1,17 @@
+struct data1
+{
+  char c[0x1000];
+} __attribute__ ((aligned (128)));
+
+struct data2
+{
+  char c[872];
+};
+
+extern const struct data1 d1[];
+extern const struct data2 d2;
+extern const char c1[];
+
+extern const int var0;
+extern const int var1;
+extern const int var2;