[binutils-gdb] Add PR27441 testcase

[Alan Modra]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=bfece7562d62f11782ca7089310b4063be526fb2

commit bfece7562d62f11782ca7089310b4063be526fb2
Author: Alan Modra <amodra@gmail.com>
Date:   Fri Feb 26 13:26:19 2021 +1030

    Add PR27441 testcase
    
            PR 27441
            * testsuite/ld-plugin/pr27441a.c,
            * testsuite/ld-plugin/pr27441b.c,
            * testsuite/ld-plugin/pr27441c.c,
            * testsuite/ld-plugin/pr27441c.d: New test.
            * testsuite/ld-plugin/lto.exp: Run it.

Diff:
---
 ld/ChangeLog                      |  9 +++++++++
 ld/testsuite/ld-plugin/lto.exp    | 12 ++++++++++++
 ld/testsuite/ld-plugin/pr27441a.c |  2 ++
 ld/testsuite/ld-plugin/pr27441b.c |  1 +
 ld/testsuite/ld-plugin/pr27441c.c |  8 ++++++++
 ld/testsuite/ld-plugin/pr27441c.d |  4 ++++
 6 files changed, 36 insertions(+)

diff --git a/ld/ChangeLog b/ld/ChangeLog
index a94be7526b4..6540407237c 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,12 @@
+2021-02-26  Alan Modra  <amodra@gmail.com>
+
+	PR 27441
+	* testsuite/ld-plugin/pr27441a.c,
+	* testsuite/ld-plugin/pr27441b.c,
+	* testsuite/ld-plugin/pr27441c.c,
+	* testsuite/ld-plugin/pr27441c.d: New test.
+	* testsuite/ld-plugin/lto.exp: Run it.
+
 2021-02-25  Jan Beulich  <jbeulich@suse.com>
 
 	* ld.texi (PROVIDE): Downgrade "error" to "diagnostic".
diff --git a/ld/testsuite/ld-plugin/lto.exp b/ld/testsuite/ld-plugin/lto.exp
index 38cea30aed4..2271211367b 100644
--- a/ld/testsuite/ld-plugin/lto.exp
+++ b/ld/testsuite/ld-plugin/lto.exp
@@ -448,6 +448,18 @@ set lto_link_elf_tests [list \
   [list {pr27311-2} \
    {tmpdir/pr27311d.o -Wl,--no-as-needed,--rpath-link=. tmpdir/pr27311b.so} {} \
    {dummy.c} {{readelf {--dyn-syms --wide} pr27311.d}} {pr27311-2}] \
+  [list {pr27441a.so} \
+   {-shared} {-fPIC} \
+   {pr27441a.c} {} {pr27441a.so}] \
+  [list {pr27441b.so} \
+   {-shared} {-fPIC} \
+   {pr27441b.c} {} {pr27441b.so}] \
+  [list {pr27441c.o} \
+   {} {-fPIC -flto} \
+   {pr27441c.c} {} {}] \
+  [list {pr27441c.so} \
+   {-shared -fPIC -Wl,--as-needed tmpdir/pr27441c.o tmpdir/pr27441b.so tmpdir/pr27441a.so} {-fPIC} \
+   {dummy.c} {{readelf {-dW} pr27441c.d}} {pr27441c.so}] \
 ]
 
 # PR 14918 checks that libgcc is not spuriously included in a shared link of
diff --git a/ld/testsuite/ld-plugin/pr27441a.c b/ld/testsuite/ld-plugin/pr27441a.c
new file mode 100644
index 00000000000..59034df4ad0
--- /dev/null
+++ b/ld/testsuite/ld-plugin/pr27441a.c
@@ -0,0 +1,2 @@
+int func1 (void) { return 1; }
+int func2 (void) { return 2; }
diff --git a/ld/testsuite/ld-plugin/pr27441b.c b/ld/testsuite/ld-plugin/pr27441b.c
new file mode 100644
index 00000000000..9f2ed199bab
--- /dev/null
+++ b/ld/testsuite/ld-plugin/pr27441b.c
@@ -0,0 +1 @@
+int __attribute__((weak)) func1 (void) { return 3; }
diff --git a/ld/testsuite/ld-plugin/pr27441c.c b/ld/testsuite/ld-plugin/pr27441c.c
new file mode 100644
index 00000000000..207a183ca2f
--- /dev/null
+++ b/ld/testsuite/ld-plugin/pr27441c.c
@@ -0,0 +1,8 @@
+extern int func1 (void);
+extern int func2 (void);
+
+int
+callthem (void)
+{
+  return func1 () + func2 ();
+}
diff --git a/ld/testsuite/ld-plugin/pr27441c.d b/ld/testsuite/ld-plugin/pr27441c.d
new file mode 100644
index 00000000000..d0bea662184
--- /dev/null
+++ b/ld/testsuite/ld-plugin/pr27441c.d
@@ -0,0 +1,4 @@
+#...
+ .* \(NEEDED\) +Shared library: \[tmpdir/pr27441b.so\]
+ .* \(NEEDED\) +Shared library: \[tmpdir/pr27441a.so\]
+#pass