[lld] r312753 - Add -no-gdb-index which negates -gdb-index option.

[Rui Ueyama via llvm-commits]

Author: ruiu
Date: Thu Sep  7 15:40:54 2017
New Revision: 312753

URL: http://llvm.org/viewvc/llvm-project?rev=312753&view=rev
Log:
Add -no-gdb-index which negates -gdb-index option.

Modified:
    lld/trunk/ELF/Driver.cpp
    lld/trunk/ELF/Options.td
    lld/trunk/test/ELF/gdb-index.s

Modified: lld/trunk/ELF/Driver.cpp
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/Driver.cpp?rev=312753&r1=312752&r2=312753&view=diff
==============================================================================
--- lld/trunk/ELF/Driver.cpp (original)
+++ lld/trunk/ELF/Driver.cpp Thu Sep  7 15:40:54 2017
@@ -645,7 +645,7 @@ void LinkerDriver::readConfigs(opt::Inpu
   Config->FilterList = getArgs(Args, OPT_filter);
   Config->Fini = Args.getLastArgValue(OPT_fini, "_fini");
   Config->GcSections = getArg(Args, OPT_gc_sections, OPT_no_gc_sections, false);
-  Config->GdbIndex = Args.hasArg(OPT_gdb_index);
+  Config->GdbIndex = getArg(Args, OPT_gdb_index, OPT_no_gdb_index, false);
   Config->ICF = getArg(Args, OPT_icf_all, OPT_icf_none, false);
   Config->Init = Args.getLastArgValue(OPT_init, "_init");
   Config->LTOAAPipeline = Args.getLastArgValue(OPT_lto_aa_pipeline);

Modified: lld/trunk/ELF/Options.td
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/Options.td?rev=312753&r1=312752&r2=312753&view=diff
==============================================================================
--- lld/trunk/ELF/Options.td (original)
+++ lld/trunk/ELF/Options.td Thu Sep  7 15:40:54 2017
@@ -185,6 +185,9 @@ def no_fatal_warnings: F<"no-fatal-warni
 def no_gc_sections: F<"no-gc-sections">,
   HelpText<"Disable garbage collection of unused sections">;
 
+def no_gdb_index: F<"no-gdb-index">,
+  HelpText<"Do not generate .gdb_index section">;
+
 def no_gnu_unique: F<"no-gnu-unique">,
   HelpText<"Disable STB_GNU_UNIQUE symbol binding">;
 

Modified: lld/trunk/test/ELF/gdb-index.s
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/test/ELF/gdb-index.s?rev=312753&r1=312752&r2=312753&view=diff
==============================================================================
--- lld/trunk/test/ELF/gdb-index.s (original)
+++ lld/trunk/test/ELF/gdb-index.s Thu Sep  7 15:40:54 2017
@@ -35,6 +35,10 @@
 # CHECK-NEXT:    1(0x8): 0x90000000 0x90000001
 # CHECK-NEXT:    2(0x14): 0x30000001
 
+# RUN: ld.lld --gdb-index --no-gdb-index -e main %t1.o %t2.o -o %t2
+# RUN: llvm-readobj -sections %t2 | FileCheck -check-prefix=NOGDB %s
+# NOGDB-NOT: Name: .gdb_index
+
 ## The following section contents are created by this using gcc 7.1.0:
 ## echo 'int main() { return 0; }' | gcc -gsplit-dwarf -xc++ -S -o- -