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authorRafael Espindola <rafael.espindola@gmail.com>2010-10-27 17:56:18 +0000
committerRafael Espindola <rafael.espindola@gmail.com>2010-10-27 17:56:18 +0000
commit83ff4d2b0d6133d48055a27fe25c5d241bca7e9b (patch)
treea598ae4a35f2e0801dd166a71659f7302962014a
parent093177d5cde06dcb63829320f12195c32485a6d1 (diff)
Produce an error for an invalid use of .symver.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117462 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--lib/MC/ELFObjectWriter.cpp5
-rw-r--r--test/MC/ELF/invalid-symver.s7
2 files changed, 12 insertions, 0 deletions
diff --git a/lib/MC/ELFObjectWriter.cpp b/lib/MC/ELFObjectWriter.cpp
index 54d8123da0..1904397fe1 100644
--- a/lib/MC/ELFObjectWriter.cpp
+++ b/lib/MC/ELFObjectWriter.cpp
@@ -468,6 +468,11 @@ void ELFObjectWriterImpl::ExecutePostLayoutBinding(MCAssembler &Asm) {
if (!Symbol.isUndefined() && !Rest.startswith("@@@"))
continue;
+ // FIXME: produce a better error message.
+ if (Symbol.isUndefined() && Rest.startswith("@@") &&
+ !Rest.startswith("@@@"))
+ report_fatal_error("A @@ version cannot be undefined");
+
std::pair<const MCSymbol *, const MCSymbol *> t(&Symbol, &Alias);
Renames.insert(t);
}
diff --git a/test/MC/ELF/invalid-symver.s b/test/MC/ELF/invalid-symver.s
new file mode 100644
index 0000000000..3c4f8c084b
--- /dev/null
+++ b/test/MC/ELF/invalid-symver.s
@@ -0,0 +1,7 @@
+// RUN: not llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o %t 2> %t.out
+// RUN: FileCheck --input-file=%t.out %s
+
+// CHECK: A @@ version cannot be undefined
+
+ .symver undefined, foo@@bar
+ .long undefined