Properly check symbol defined by assignment in linker script

Symbol defined by a linker assignment may have type bfd_link_hash_new
or bfd_link_hash_undefined.  And h->def_regular is always set.
elf_i386_convert_load and elf_x86_64_convert_load should check
h->def_regular as well as bfd_link_hash_undefined and bfd_link_hash_new
to see if a symbol is defined by a linker script.

bfd/

	PR ld/19319
	* elf32-i386.c (elf_i386_convert_load): Check h->def_regular
	instead of bfd_link_hash_new.
	* elf64-x86-64.c (elf_x86_64_convert_load): Likewise.  Skip
	relocation overflow for bfd_link_hash_undefined and
	bfd_link_hash_new if h->def_regular is set.

ld/testsuite/

	PR ld/19319
	* ld-i386/i386.exp: Run pr19319 test.
	* ld-x86-64/x86-64.exp: Likewise.
	* ld-i386/pr19319.dd: New file.
	* ld-i386/pr19319a.S: Likewise.
	* ld-i386/pr19319b.S: Likewise.
	* ld-x86-64/pr19319.dd: Likewise.
	* ld-x86-64/pr19319a.S: Likewise.
	* ld-x86-64/pr19319b.S: Likewise.

9 files changed, 96 insertions, 0 deletions

diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog
index 739f09f..d7ef3c4 100644
--- a/ld/testsuite/ChangeLog
+++ b/ld/testsuite/ChangeLog
@@ -1,3 +1,15 @@
+2015-12-01  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR ld/19319
+	* ld-i386/i386.exp: Run pr19319 test.
+	* ld-x86-64/x86-64.exp: Likewise.
+	* ld-i386/pr19319.dd: New file.
+	* ld-i386/pr19319a.S: Likewise.
+	* ld-i386/pr19319b.S: Likewise.
+	* ld-x86-64/pr19319.dd: Likewise.
+	* ld-x86-64/pr19319a.S: Likewise.
+	* ld-x86-64/pr19319b.S: Likewise.
+
 2015-11-11  Alan Modra  <amodra@gmail.com>
 	    Peter Bergner <bergner@vnet.ibm.com>
 
diff --git a/ld/testsuite/ld-i386/i386.exp b/ld/testsuite/ld-i386/i386.exp
index 84a63e8..a6601ed 100644
--- a/ld/testsuite/ld-i386/i386.exp
+++ b/ld/testsuite/ld-i386/i386.exp
@@ -537,6 +537,22 @@ if { [isnative]
 	    {{objdump {-dw} got1.dd}} \
 	    "got1" \
 	] \
+	[list \
+	    "Build pr19319.so" \
+	    "-shared" \
+	    "" \
+	    { pr19319a.S } \
+	    "" \
+	    "pr19319.so" \
+	] \
+	[list \
+	    "Build pr19319" \
+	    "-pie -nostdlib -nostartfiles tmpdir/pr19319.so" \
+	    "" \
+	    { pr19319b.S } \
+	    {{objdump {-dw} pr19319.dd}} \
+	    "pr19319" \
+	] \
     ]
 
     run_ld_link_exec_tests [] [list \
diff --git a/ld/testsuite/ld-i386/pr19319.dd b/ld/testsuite/ld-i386/pr19319.dd
new file mode 100644
index 0000000..f2593da
--- /dev/null
+++ b/ld/testsuite/ld-i386/pr19319.dd
@@ -0,0 +1,4 @@
+#...
+[a-f0-9]+ <_start>:
+[ 	]*[a-f0-9]+:	8d 81 ([0-9a-f]{2} ){4} *	lea    0x[a-f0-9]+\(%ecx\),%eax
+#pass
diff --git a/ld/testsuite/ld-i386/pr19319a.S b/ld/testsuite/ld-i386/pr19319a.S
new file mode 100644
index 0000000..04082be
--- /dev/null
+++ b/ld/testsuite/ld-i386/pr19319a.S
@@ -0,0 +1,11 @@
+	.text
+	.globl	foo
+	.type	foo, @function
+foo:
+	movl	__start_my_section@GOT(%ecx), %eax
+	ret
+	.size	foo, .-foo
+	.section	my_section,"aw",@progbits
+	.align 8
+	.long	4660
+	.long	22136
diff --git a/ld/testsuite/ld-i386/pr19319b.S b/ld/testsuite/ld-i386/pr19319b.S
new file mode 100644
index 0000000..98294f6
--- /dev/null
+++ b/ld/testsuite/ld-i386/pr19319b.S
@@ -0,0 +1,11 @@
+	.text
+	.globl	_start
+	.type	_start, @function
+_start:
+	movl	__start_my_section@GOT(%ecx), %eax
+	ret
+	.size	_start, .-_start
+	.section	my_section,"aw",@progbits
+	.align 8
+	.long	4660
+	.long	22136
diff --git a/ld/testsuite/ld-x86-64/pr19319.dd b/ld/testsuite/ld-x86-64/pr19319.dd
new file mode 100644
index 0000000..9d6ffd9
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/pr19319.dd
@@ -0,0 +1,4 @@
+#...
+[a-f0-9]+ <_start>:
+[ 	]*[a-f0-9]+:	48 8d 05 ([0-9a-f]{2} ){4} *	lea    0x[a-f0-9]+\(%rip\),%rax        # [a-f0-9]+ <__start_my_section>
+#pass
diff --git a/ld/testsuite/ld-x86-64/pr19319a.S b/ld/testsuite/ld-x86-64/pr19319a.S
new file mode 100644
index 0000000..438d7a5
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/pr19319a.S
@@ -0,0 +1,11 @@
+	.text
+	.globl	foo
+	.type	foo, @function
+foo:
+	movq	__start_my_section@GOTPCREL(%rip), %rax
+	ret
+	.size	foo, .-foo
+	.section	my_section,"aw",@progbits
+	.align 8
+	.long	4660
+	.long	22136
diff --git a/ld/testsuite/ld-x86-64/pr19319b.S b/ld/testsuite/ld-x86-64/pr19319b.S
new file mode 100644
index 0000000..c9285c0
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/pr19319b.S
@@ -0,0 +1,11 @@
+	.text
+	.globl	_start
+	.type	_start, @function
+_start:
+	movq	__start_my_section@GOTPCREL(%rip), %rax
+	ret
+	.size	_start, .-_start
+	.section	my_section,"aw",@progbits
+	.align 8
+	.long	4660
+	.long	22136
diff --git a/ld/testsuite/ld-x86-64/x86-64.exp b/ld/testsuite/ld-x86-64/x86-64.exp
index 63d7211..f0f47eb 100644
--- a/ld/testsuite/ld-x86-64/x86-64.exp
+++ b/ld/testsuite/ld-x86-64/x86-64.exp
@@ -546,6 +546,22 @@ if { [isnative] && [which $CC] != 0 } {
 	    {{objdump {-dw} gotpcrel1.dd}} \
 	    "gotpcrel1" \
 	] \
+	[list \
+	    "Build pr19319.so" \
+	    "-shared" \
+	    "" \
+	    { pr19319a.S } \
+	    "" \
+	    "pr19319.so" \
+	] \
+	[list \
+	    "Build pr19319" \
+	    "-pie -nostdlib -nostartfiles tmpdir/pr19319.so" \
+	    "" \
+	    { pr19319b.S } \
+	    {{objdump {-dw} pr19319.dd}} \
+	    "pr19319" \
+	] \
     ]
 
     run_ld_link_exec_tests [] [list \