From ab7fede88eddf004994f8769e3c7ac145628f5b4 Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Tue, 18 Nov 2014 11:03:09 -0800
Subject: Check PC-relative offset overflow in PLT entry

This patch checks PC-relative offset overflow in pushq instruction in
x86-64 PLT entry.

bfd/

	PR ld/17618
	* elf64-x86-64.c (elf_x86_64_finish_dynamic_symbol): Check
	PC-relative offset overflow in PLT entry.

ld/testsuite/

	PR ld/17618
	* ld-x86-64/x86-64.exp: Run pr17618 for Linux target.

	* ld-x86-64/pr17618.d: New file.
	* ld-x86-64/pr17618.s: Likewise.
---
 ld/testsuite/ChangeLog            |  8 ++++++++
 ld/testsuite/ld-x86-64/pr17618.d  |  4 ++++
 ld/testsuite/ld-x86-64/pr17618.s  | 18 ++++++++++++++++++
 ld/testsuite/ld-x86-64/x86-64.exp |  7 +++++++
 4 files changed, 37 insertions(+)
 create mode 100644 ld/testsuite/ld-x86-64/pr17618.d
 create mode 100644 ld/testsuite/ld-x86-64/pr17618.s

(limited to 'ld')

diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog
index a8aa37d..72b4bb9 100644
--- a/ld/testsuite/ChangeLog
+++ b/ld/testsuite/ChangeLog
@@ -1,5 +1,13 @@
 2014-11-18  H.J. Lu  <hongjiu.lu@intel.com>
 
+	PR ld/17618
+	* ld-x86-64/x86-64.exp: Run pr17618 for Linux target.
+
+	* ld-x86-64/pr17618.d: New file.
+	* ld-x86-64/pr17618.s: Likewise.
+
+2014-11-18  H.J. Lu  <hongjiu.lu@intel.com>
+
 	* ld-x86-64/mpx.exp: Always run mpx3 and mpx4 tests in 64-bit.
 
 2014-11-18  Igor Zamyatin  <igor.zamyatin@intel.com>
diff --git a/ld/testsuite/ld-x86-64/pr17618.d b/ld/testsuite/ld-x86-64/pr17618.d
new file mode 100644
index 0000000..e640b40
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/pr17618.d
@@ -0,0 +1,4 @@
+#name: PLT PC-relative offset overflow check
+#as: --64
+#ld: -shared -melf_x86_64
+#error: .*PC-relative offset overflow in PLT entry for `bar'
diff --git a/ld/testsuite/ld-x86-64/pr17618.s b/ld/testsuite/ld-x86-64/pr17618.s
new file mode 100644
index 0000000..39102e0
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/pr17618.s
@@ -0,0 +1,18 @@
+	.text
+	.globl	foo
+	.type	foo, @function
+foo:
+	call bar@PLT
+	.size	foo, .-foo
+
+	.globl	gap
+	.type	gap, @function
+gap:
+	jmp .L0
+	.space 0x40000000, 0x90
+.L0:
+	jmp .L2
+	.space 0x3fdfff14, 0x90
+.L2:
+	.size	gap, .-gap
+	.section	.note.GNU-stack,"",@progbits
diff --git a/ld/testsuite/ld-x86-64/x86-64.exp b/ld/testsuite/ld-x86-64/x86-64.exp
index a9b68ff..7f09458 100644
--- a/ld/testsuite/ld-x86-64/x86-64.exp
+++ b/ld/testsuite/ld-x86-64/x86-64.exp
@@ -333,3 +333,10 @@ if { [isnative] && [which $CC] != 0 } {
 	{dummy.s} {{readelf {-s --wide} x86-64-x32.rd}} "x86-64-x32"}
     }
 }
+
+if { ![istarget "x86_64-*-linux*"]} {
+    return
+}
+
+# Linux only tests
+run_dump_test "pr17618"
-- 
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