Issue relocation in RO section warning for -z text

This patch changes linker to issue a warning for relocation in readonly
section for -z text.

bfd/

	PR ld/17935
	* elf32-i386.c (elf_i386_readonly_dynrelocs): Also issue a
	warning for relocation in readonly section for -z text.
	(elf_i386_size_dynamic_sections): Likewise.
	* elf64-x86-64.c (elf_x86_64_readonly_dynrelocs): Likewise.
	(elf_x86_64_size_dynamic_sections): Likewise.

ld/testsuite/

	PR ld/17935
	* ld-i386/i386.exp: Run pr17935-1 and pr17935-2.
	* ld-x86-64/x86-64.exp: Likewise.

	* ld-i386/pr17935-1.d: New file.
	* ld-i386/pr17935-1.s: Likewise.
	* ld-i386/pr17935-2.d: Likewise.
	* ld-i386/pr17935-2.s: Likewise.
	* ld-x86-64/pr17935-1.d: Likewise.
	* ld-x86-64/pr17935-1.s: Likewise.
	* ld-x86-64/pr17935-2.d: Likewise.
	* ld-x86-64/pr17935-2.s: Likewise.

11 files changed, 57 insertions, 0 deletions

diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog
index 075016b..3f085c2 100644
--- a/ld/testsuite/ChangeLog
+++ b/ld/testsuite/ChangeLog
@@ -1,3 +1,18 @@
+2015-02-07  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR ld/17935
+	* ld-i386/i386.exp: Run pr17935-1 and pr17935-2.
+	* ld-x86-64/x86-64.exp: Likewise.
+
+	* ld-i386/pr17935-1.d: New file.
+	* ld-i386/pr17935-1.s: Likewise.
+	* ld-i386/pr17935-2.d: Likewise.
+	* ld-i386/pr17935-2.s: Likewise.
+	* ld-x86-64/pr17935-1.d: Likewise.
+	* ld-x86-64/pr17935-1.s: Likewise.
+	* ld-x86-64/pr17935-2.d: Likewise.
+	* ld-x86-64/pr17935-2.s: Likewise.
+
 2015-02-06  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR ld/12365
diff --git a/ld/testsuite/ld-i386/i386.exp b/ld/testsuite/ld-i386/i386.exp
index 6f98b4f..f5922b4 100644
--- a/ld/testsuite/ld-i386/i386.exp
+++ b/ld/testsuite/ld-i386/i386.exp
@@ -263,6 +263,8 @@ run_dump_test "pr12627"
 run_dump_test "pr13302"
 run_dump_test "pr14215"
 run_dump_test "pr17057"
+run_dump_test "pr17935-1"
+run_dump_test "pr17935-2"
 
 # Must be Linux native with the C compiler
 if { [isnative]
diff --git a/ld/testsuite/ld-i386/pr17935-1.d b/ld/testsuite/ld-i386/pr17935-1.d
new file mode 100644
index 0000000..5303ea2
--- /dev/null
+++ b/ld/testsuite/ld-i386/pr17935-1.d
@@ -0,0 +1,3 @@
+# as: --32
+# ld: -m elf_i386 -shared -z text
+# error: warning: relocation against `foo' in readonly section `.text'
diff --git a/ld/testsuite/ld-i386/pr17935-1.s b/ld/testsuite/ld-i386/pr17935-1.s
new file mode 100644
index 0000000..38eef2e
--- /dev/null
+++ b/ld/testsuite/ld-i386/pr17935-1.s
@@ -0,0 +1,7 @@
+	.text
+	.globl foo
+foo:
+	.byte 0
+	.globl	bar
+bar:
+	.dc.a	foo
diff --git a/ld/testsuite/ld-i386/pr17935-2.d b/ld/testsuite/ld-i386/pr17935-2.d
new file mode 100644
index 0000000..c1080f4
--- /dev/null
+++ b/ld/testsuite/ld-i386/pr17935-2.d
@@ -0,0 +1,3 @@
+# as: --32
+# ld: -m elf_i386 -shared -z text
+# error: warning: relocation in readonly section `.text'
diff --git a/ld/testsuite/ld-i386/pr17935-2.s b/ld/testsuite/ld-i386/pr17935-2.s
new file mode 100644
index 0000000..3ae5369
--- /dev/null
+++ b/ld/testsuite/ld-i386/pr17935-2.s
@@ -0,0 +1,6 @@
+	.text
+foo:
+	.byte 0
+	.globl	bar
+bar:
+	.dc.a	foo
diff --git a/ld/testsuite/ld-x86-64/pr17935-1.d b/ld/testsuite/ld-x86-64/pr17935-1.d
new file mode 100644
index 0000000..5734eab
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/pr17935-1.d
@@ -0,0 +1,3 @@
+# as: --64
+# ld: -m elf_x86_64 -shared -z text
+# error: warning: relocation against `foo' in readonly section `.text'
diff --git a/ld/testsuite/ld-x86-64/pr17935-1.s b/ld/testsuite/ld-x86-64/pr17935-1.s
new file mode 100644
index 0000000..38eef2e
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/pr17935-1.s
@@ -0,0 +1,7 @@
+	.text
+	.globl foo
+foo:
+	.byte 0
+	.globl	bar
+bar:
+	.dc.a	foo
diff --git a/ld/testsuite/ld-x86-64/pr17935-2.d b/ld/testsuite/ld-x86-64/pr17935-2.d
new file mode 100644
index 0000000..81df652
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/pr17935-2.d
@@ -0,0 +1,3 @@
+# as: --64
+# ld: -m elf_x86_64 -shared -z text
+# error: warning: relocation in readonly section `.text'
diff --git a/ld/testsuite/ld-x86-64/pr17935-2.s b/ld/testsuite/ld-x86-64/pr17935-2.s
new file mode 100644
index 0000000..3ae5369
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/pr17935-2.s
@@ -0,0 +1,6 @@
+	.text
+foo:
+	.byte 0
+	.globl	bar
+bar:
+	.dc.a	foo
diff --git a/ld/testsuite/ld-x86-64/x86-64.exp b/ld/testsuite/ld-x86-64/x86-64.exp
index bfa89c3..9bb08bd 100644
--- a/ld/testsuite/ld-x86-64/x86-64.exp
+++ b/ld/testsuite/ld-x86-64/x86-64.exp
@@ -311,6 +311,8 @@ run_dump_test "mov1a"
 run_dump_test "mov1b"
 run_dump_test "mov1c"
 run_dump_test "mov1d"
+run_dump_test "pr17935-1"
+run_dump_test "pr17935-2"
 
 # Must be native with the C compiler
 if { [isnative] && [which $CC] != 0 } {