x86: Add GC testcases with property sections

Verify that debug section is removed by garbage collection when there
is a .note.gnu.property section.

	* testsuite/ld-i386/i386.exp: Run property-x86-4a and
	property-x86-4b.
	* testsuite/ld-x86-64/x86-64.exp: Likewise.
	* testsuite/ld-i386/property-x86-4a.d: New file.
	* testsuite/ld-i386/property-x86-4a.s: Likewise.
	* testsuite/ld-i386/property-x86-4b.d: Likewise.
	* testsuite/ld-i386/property-x86-4b.s: Likewise.
	* testsuite/ld-x86-64/property-x86-4a.d: Likewise.
	* testsuite/ld-x86-64/property-x86-4a.s: Likewise.
	* testsuite/ld-x86-64/property-x86-4b.d: Likewise.
	* testsuite/ld-x86-64/property-x86-4b.s: Likewise.

5 files changed, 47 insertions, 0 deletions

diff --git a/ld/testsuite/ld-i386/i386.exp b/ld/testsuite/ld-i386/i386.exp
index 0118f24..a92bd91 100644
--- a/ld/testsuite/ld-i386/i386.exp
+++ b/ld/testsuite/ld-i386/i386.exp
@@ -418,6 +418,8 @@ run_dump_test "pr20253-4c"
 run_dump_test "pr20253-5"
 run_dump_test "pr20515"
 run_dump_test "property-x86-3"
+run_dump_test "property-x86-4a"
+run_dump_test "property-x86-4b"
 
 if { !([istarget "i?86-*-linux*"]
        || [istarget "i?86-*-gnu*"]
diff --git a/ld/testsuite/ld-i386/property-x86-4a.d b/ld/testsuite/ld-i386/property-x86-4a.d
new file mode 100644
index 0000000..53c0b04
--- /dev/null
+++ b/ld/testsuite/ld-i386/property-x86-4a.d
@@ -0,0 +1,10 @@
+#source: property-x86-4a.s
+#source: property-x86-4b.s
+#as: --32
+#ld: -m elf_i386 --gc-sections --entry=main
+#readelf: -n
+
+Displaying notes found in: .note.gnu.property
+  Owner                 Data size	Description
+  GNU                  0x00000008	NT_GNU_PROPERTY_TYPE_0
+      Properties: no copy on protected 
diff --git a/ld/testsuite/ld-i386/property-x86-4a.s b/ld/testsuite/ld-i386/property-x86-4a.s
new file mode 100644
index 0000000..21846af
--- /dev/null
+++ b/ld/testsuite/ld-i386/property-x86-4a.s
@@ -0,0 +1,5 @@
+	.text
+	.globl  main
+	.type   main, @function
+main:
+	ret
diff --git a/ld/testsuite/ld-i386/property-x86-4b.d b/ld/testsuite/ld-i386/property-x86-4b.d
new file mode 100644
index 0000000..2184ac9
--- /dev/null
+++ b/ld/testsuite/ld-i386/property-x86-4b.d
@@ -0,0 +1,10 @@
+#source: property-x86-4a.s
+#source: property-x86-4b.s
+#as: --32
+#ld: -m elf_i386 --gc-sections --entry=main
+#readelf: -S --wide
+
+#failif
+#...
+ +\[ [0-9]\] .debug_info.*
+#...
diff --git a/ld/testsuite/ld-i386/property-x86-4b.s b/ld/testsuite/ld-i386/property-x86-4b.s
new file mode 100644
index 0000000..83aaf3e
--- /dev/null
+++ b/ld/testsuite/ld-i386/property-x86-4b.s
@@ -0,0 +1,20 @@
+	.section .debug_info,"",@progbits
+	.hidden t.c.4903c230
+	.globl t.c.4903c230
+t.c.4903c230:
+	.byte 0x28
+
+	.section ".note.gnu.property", "a"
+	.p2align 2
+	.long 1f - 0f		/* name length.  */
+	.long 3f - 2f		/* data length.  */
+	/* NT_GNU_PROPERTY_TYPE_0 */
+	.long 5			/* note type.  */
+0:	.asciz "GNU"		/* vendor name.  */
+1:	.p2align 2
+2:
+	/* GNU_PROPERTY_NO_COPY_ON_PROTECTED */
+	.long 2			/* pr_type.  */
+	.long 0			/* pr_datasz.  */
+	.p2align 2
+3: