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.

11 files changed, 108 insertions, 0 deletions

diff --git a/ld/ChangeLog b/ld/ChangeLog
index 838f3cb..f6063f5 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,17 @@
+2017-05-19  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* 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.
+
 2017-05-19  Georg-Johann Lay  <avr@gjlay.de>
 
 	PR ld/21472
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:
diff --git a/ld/testsuite/ld-x86-64/property-x86-4a.d b/ld/testsuite/ld-x86-64/property-x86-4a.d
new file mode 100644
index 0000000..50be0b7
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/property-x86-4a.d
@@ -0,0 +1,10 @@
+#source: property-x86-4a.s
+#source: property-x86-4b.s
+#as: --64
+#ld: -m elf_x86_64 --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-x86-64/property-x86-4a.s b/ld/testsuite/ld-x86-64/property-x86-4a.s
new file mode 100644
index 0000000..21846af
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/property-x86-4a.s
@@ -0,0 +1,5 @@
+	.text
+	.globl  main
+	.type   main, @function
+main:
+	ret
diff --git a/ld/testsuite/ld-x86-64/property-x86-4b.d b/ld/testsuite/ld-x86-64/property-x86-4b.d
new file mode 100644
index 0000000..194dd6c
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/property-x86-4b.d
@@ -0,0 +1,10 @@
+#source: property-x86-4a.s
+#source: property-x86-4b.s
+#as: --64
+#ld: -m elf_x86_64 --gc-sections --entry=main
+#readelf: -S --wide
+
+#failif
+#...
+ +\[ [0-9]\] .debug_info.*
+#...
diff --git a/ld/testsuite/ld-x86-64/property-x86-4b.s b/ld/testsuite/ld-x86-64/property-x86-4b.s
new file mode 100644
index 0000000..3da1055
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/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 3
+	.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 3
+2:
+	/* GNU_PROPERTY_NO_COPY_ON_PROTECTED */
+	.long 2			/* pr_type.  */
+	.long 0			/* pr_datasz.  */
+	.p2align 3
+3:
diff --git a/ld/testsuite/ld-x86-64/x86-64.exp b/ld/testsuite/ld-x86-64/x86-64.exp
index e7f7326..ebb55f3 100644
--- a/ld/testsuite/ld-x86-64/x86-64.exp
+++ b/ld/testsuite/ld-x86-64/x86-64.exp
@@ -330,6 +330,8 @@ run_dump_test "pr19969"
 run_dump_test "pr20093-1"
 run_dump_test "pr20093-2"
 run_dump_test "property-x86-3"
+run_dump_test "property-x86-4a"
+run_dump_test "property-x86-4b"
 
 if { ![istarget "x86_64-*-linux*"] && ![istarget "x86_64-*-nacl*"]} {
     return