[binutils-gdb] Add 2 testcases for PR ld/22269

[H.J.Lu <hjl at sourceware dot org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=4b97e3893ed2af7bdb9dcaa34fae1a207e2d7042

commit 4b97e3893ed2af7bdb9dcaa34fae1a207e2d7042
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Sat Oct 7 03:07:36 2017 -0700

    Add 2 testcases for PR ld/22269
    
    Since undefined weak symbols in static PIE are always resolved to 0 at
    run-time, linker should resolve them as 0 at link-time, regardless of
    whether "-z dynamic-undefined-weak" is used.  "-z dynamic-undefined-weak"
    only makes undefined weak symbols dynamic, but doesn't change undefined
    weak symbol resolution in static PIE at link-time.  These tests currently
    pass on x86, but fails on many other targets.
    
    The framework to resolve weak symbols in static PE at link-time is
    posted at
    
    https://sourceware.org/ml/binutils/2017-10/msg00087.html
    
    which requires users/hjl/check_relocs branch to call check_relocs after
    opening all inputs.  I will submit backend patches for failling targets
    after merging users/hjl/check_relocs branch next.
    
    	* PR ld/22269
    	* testsuite/ld-elf/pr22269.s: New file.
    	* testsuite/ld-elf/pr22269a.d: Likewise.
    	* testsuite/ld-elf/pr22269b.d: Likewise.

Diff:
---
 ld/ChangeLog                   |  7 +++++++
 ld/testsuite/ld-elf/pr22269.s  | 13 +++++++++++++
 ld/testsuite/ld-elf/pr22269a.d | 10 ++++++++++
 ld/testsuite/ld-elf/pr22269b.d | 10 ++++++++++
 4 files changed, 40 insertions(+)

diff --git a/ld/ChangeLog b/ld/ChangeLog
index 1719252..43fa479 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,5 +1,12 @@
 2017-10-11  H.J. Lu  <hongjiu.lu@intel.com>
 
+	* PR ld/22269
+	* testsuite/ld-elf/pr22269.s: New file.
+	* testsuite/ld-elf/pr22269a.d: Likewise.
+	* testsuite/ld-elf/pr22269b.d: Likewise.
+
+2017-10-11  H.J. Lu  <hongjiu.lu@intel.com>
+
 	* testsuite/ld-i386/i386.exp: Run pr19636-1j, pr19636-1k,
 	pr19636-1l, pr19636-3h and pr19636-3i.
 	* testsuite/ld-i386/pr19636-1j.d: New file.
diff --git a/ld/testsuite/ld-elf/pr22269.s b/ld/testsuite/ld-elf/pr22269.s
new file mode 100644
index 0000000..71c1c06
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr22269.s
@@ -0,0 +1,13 @@
+	.globl main
+	.globl start
+	.globl _start
+	.globl __start
+	.text
+main:
+start:
+_start:
+__start:
+	.byte 0
+	.section	.data.rel.ro.local,"aw",%progbits
+	.weak func
+	.dc.a func
diff --git a/ld/testsuite/ld-elf/pr22269a.d b/ld/testsuite/ld-elf/pr22269a.d
new file mode 100644
index 0000000..d993d19
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr22269a.d
@@ -0,0 +1,10 @@
+#name: PR ld/22269
+#source: pr22269.s
+#ld: -pie --no-dynamic-linker
+#readelf: -r -x .data.rel.ro
+#target: *-*-linux* *-*-gnu* *-*-nacl*
+
+There are no relocations in this file.
+
+Hex dump of section '.data.rel.ro':
+  0x[a-f0-9]+ [0 ]+[ ]+.+
diff --git a/ld/testsuite/ld-elf/pr22269b.d b/ld/testsuite/ld-elf/pr22269b.d
new file mode 100644
index 0000000..8810922
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr22269b.d
@@ -0,0 +1,10 @@
+#name: PR ld/22269 (-z dynamic-undefined-weak)
+#source: pr22269.s
+#ld: -pie --no-dynamic-linker -z dynamic-undefined-weak
+#readelf: -r -x .data.rel.ro
+#target: *-*-linux* *-*-gnu* *-*-nacl*
+
+There are no relocations in this file.
+
+Hex dump of section '.data.rel.ro':
+  0x[a-f0-9]+ [0 ]+[ ]+.+