1 files changed, 51 insertions, 0 deletions
diff --git a/test/ELF/warn-unresolved-symbols.s b/test/ELF/warn-unresolved-symbols.s
new file mode 100644
index 000000000000..3342c6ce50a2
--- /dev/null
+++ b/test/ELF/warn-unresolved-symbols.s
@@ -0,0 +1,51 @@
+# REQUIRES: x86
+# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o
+
+## The link should fail with an undef error by default
+# RUN: not ld.lld %t1.o -o %t3 2>&1 | \
+# RUN: FileCheck -check-prefix=ERRUND %s
+
+## --error-unresolved-symbols should generate an error
+# RUN: not ld.lld %t1.o -o %t4 --error-unresolved-symbols 2>&1 | \
+# RUN: FileCheck -check-prefix=ERRUND %s
+
+## --warn-unresolved-symbols should generate a warning
+# RUN: ld.lld %t1.o -o %t5 --warn-unresolved-symbols 2>&1 | \
+# RUN: FileCheck -check-prefix=WARNUND %s
+
+## Test that the last option wins
+# RUN: ld.lld %t1.o -o %t5 --error-unresolved-symbols --warn-unresolved-symbols 2>&1 | \
+# RUN:  FileCheck -check-prefix=WARNUND %s
+# RUN: not ld.lld %t1.o -o %t6 --warn-unresolved-symbols --error-unresolved-symbols 2>&1 | \
+# RUN:  FileCheck -check-prefix=ERRUND %s
+
+## Do not report undefines if linking relocatable or shared.
+## And while we're at it, check that we can accept single -
+## variants of these options.
+# RUN: ld.lld -r %t1.o -o %t7 -error-unresolved-symbols 2>&1 | \
+# RUN:  FileCheck -allow-empty -check-prefix=NOERR %s
+# RUN: ld.lld -shared %t1.o -o %t8.so --error-unresolved-symbols 2>&1 | \
+# RUN:  FileCheck -allow-empty -check-prefix=NOERR %s
+# RUN: ld.lld -r %t1.o -o %t9 -warn-unresolved-symbols 2>&1 | \
+# RUN:  FileCheck -allow-empty -check-prefix=NOWARN %s
+# RUN: ld.lld -shared %t1.o -o %t10.so --warn-unresolved-symbols 2>&1 | \
+# RUN:  FileCheck -allow-empty -check-prefix=NOWARN %s
+
+# ERRUND: error: undefined symbol: undef
+# ERRUND: >>> referenced by {{.*}}:(.text+0x1)
+
+# WARNUND: warning: undefined symbol: undef
+# WARNUND: >>> referenced by {{.*}}:(.text+0x1)
+
+# NOERR-NOT: error: undefined symbol: undef
+# NOERR-NOT: >>> referenced by {{.*}}:(.text+0x1)
+
+# NOWARN-NOT: warning: undefined symbol: undef
+# NOWARN-NOT: >>> referenced by {{.*}}:(.text+0x1)
+
+.globl _start
+_start:
+
+.globl _shared
+_shared:
+ callq undef@PLT