[lld] r338959 - [LLD][ELF] - Added file name and a test for case when we fail to write the output.

[George Rimar via llvm-commits]

Author: grimar
Date: Sat Aug  4 05:48:38 2018
New Revision: 338959

URL: http://llvm.org/viewvc/llvm-project?rev=338959&view=rev
Log:
[LLD][ELF] - Added file name and a test for case when we fail to write the output.

We did not report the file name and had no test for that case.

Added:
    lld/trunk/test/ELF/driver-access2.test
Modified:
    lld/trunk/ELF/Writer.cpp

Modified: lld/trunk/ELF/Writer.cpp
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/Writer.cpp?rev=338959&r1=338958&r2=338959&view=diff
==============================================================================
--- lld/trunk/ELF/Writer.cpp (original)
+++ lld/trunk/ELF/Writer.cpp Sat Aug  4 05:48:38 2018
@@ -513,7 +513,8 @@ template <class ELFT> void Writer<ELFT>:
     return;
 
   if (auto E = Buffer->commit())
-    error("failed to write to the output file: " + toString(std::move(E)));
+    error("failed to write to the output file " + Config->OutputFile + " :" +
+          toString(std::move(E)));
 }
 
 static bool shouldKeepInSymtab(SectionBase *Sec, StringRef SymName,

Added: lld/trunk/test/ELF/driver-access2.test
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/test/ELF/driver-access2.test?rev=338959&view=auto
==============================================================================
--- lld/trunk/test/ELF/driver-access2.test (added)
+++ lld/trunk/test/ELF/driver-access2.test Sat Aug  4 05:48:38 2018
@@ -0,0 +1,17 @@
+# REQUIRES: x86
+
+# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
+
+# RUN: rm -f %t.exe
+# RUN: mkdir -p %t.dir
+# RUN: cd %t.dir
+# RUN: touch %t.exe
+# RUN: chmod 100 %t.exe
+# RUN: not ld.lld %t.o -o %t.exe 2>&1 | FileCheck %s
+# RUN: chmod 755 %t.exe
+
+# CHECK: error: failed to write to the output file {{.*}}.exe :permission denied
+
+.globl _start
+_start:
+  nop