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authorH.J. Lu <hjl.tools@gmail.com>2022-02-11 15:13:19 -0800
committerH.J. Lu <hjl.tools@gmail.com>2022-02-13 20:31:44 -0800
commit20ea3acc727f3be6322dfbd881e506873535231d (patch)
tree0971a9368c01ffa00043979203002b9be1e27c1d /ld
parentbb88f104253172deca66cc113d1f47af64005804 (diff)
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ld: Keep indirect symbol from IR if referenced from shared object
Don't change indirect symbol defined in IR to undefined if it is referenced from shared object. bfd/ PR ld/28879 * elflink.c (_bfd_elf_merge_symbol): Don't change indirect symbol defined in IR to undefined if it is referenced from shared object. ld/ PR ld/28879 * testsuite/ld-plugin/lto.exp: Run PR ld/28879 tests. * testsuite/ld-plugin/pr28879a.cc: New file. * testsuite/ld-plugin/pr28879b.cc: Likewise.
Diffstat (limited to 'ld')
-rw-r--r--ld/testsuite/ld-plugin/lto.exp26
-rw-r--r--ld/testsuite/ld-plugin/pr28879a.cc7
-rw-r--r--ld/testsuite/ld-plugin/pr28879b.cc8
3 files changed, 41 insertions, 0 deletions
diff --git a/ld/testsuite/ld-plugin/lto.exp b/ld/testsuite/ld-plugin/lto.exp
index a70a845..64b8802 100644
--- a/ld/testsuite/ld-plugin/lto.exp
+++ b/ld/testsuite/ld-plugin/lto.exp
@@ -471,6 +471,32 @@ set lto_link_elf_tests [list \
[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}] \
+ [list \
+ "Build libpr28879a.so" \
+ "-shared" \
+ "-O0 -fpic" \
+ {pr28879a.cc} \
+ {} \
+ "libpr28879a.so" \
+ "c++" \
+ ] \
+ [list \
+ "Build libpr28879b.so" \
+ "-shared -Wl,--no-as-needed tmpdir/libpr28879a.so" \
+ "-O2 -fpic" \
+ {dummy.c} \
+ {} \
+ "libpr28879b.so" \
+ ] \
+ [list \
+ "Build pr28879" \
+ "-Wl,--no-as-needed tmpdir/libpr28879b.so -Wl,-rpath-link,." \
+ "-O0 -flto -D_GLIBCXX_ASSERTIONS" \
+ {pr28879b.cc} \
+ {} \
+ "pr28879" \
+ "c++" \
+ ] \
]
# PR 14918 checks that libgcc is not spuriously included in a shared link of
diff --git a/ld/testsuite/ld-plugin/pr28879a.cc b/ld/testsuite/ld-plugin/pr28879a.cc
new file mode 100644
index 0000000..8307a42
--- /dev/null
+++ b/ld/testsuite/ld-plugin/pr28879a.cc
@@ -0,0 +1,7 @@
+#include <string>
+
+void
+func (std::string *s)
+{
+ delete s;
+}
diff --git a/ld/testsuite/ld-plugin/pr28879b.cc b/ld/testsuite/ld-plugin/pr28879b.cc
new file mode 100644
index 0000000..02fc351
--- /dev/null
+++ b/ld/testsuite/ld-plugin/pr28879b.cc
@@ -0,0 +1,8 @@
+#include <string>
+
+int
+main (void)
+{
+ std::string header;
+ return 0;
+}