From 0fd8aac5dae2fe529e51a6b4db7eb32ce3922158 Mon Sep 17 00:00:00 2001
From: Kevin Enderby <enderby@apple.com>
Date: Thu, 3 Jul 2014 21:51:07 +0000
Subject: [PATCH] =?UTF-8?q?Add=20the=20-just-symbol-name=20(aka=20-j)=20fl?=
 =?UTF-8?q?ag=20to=20llvm-nm=20to=20just=20print=20the=20symbol=E2=80=99s?=
 =?UTF-8?q?=20name.=20=20On=20darwin=20the=20-j=20flag=20is=20used=20(ofte?=
 =?UTF-8?q?n=20in=20combinations=20with=20other=20flags)=20to=20produce=20?=
 =?UTF-8?q?a=20complete=20list=20of=20symbol=20names=20which=20than=20can?=
 =?UTF-8?q?=20then=20be=20reorder=20and=20used=20with=20ld(1)=E2=80=99s=20?=
 =?UTF-8?q?-order=5Ffile.?=
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llvm-svn: 212294
---
 llvm/test/Object/nm-trivial-object.test | 8 ++++++++
 llvm/tools/llvm-nm/llvm-nm.cpp          | 9 +++++++++
 2 files changed, 17 insertions(+)

diff --git a/llvm/test/Object/nm-trivial-object.test b/llvm/test/Object/nm-trivial-object.test
index 09642e1c688d..656d6b00cd3d 100644
--- a/llvm/test/Object/nm-trivial-object.test
+++ b/llvm/test/Object/nm-trivial-object.test
@@ -18,6 +18,8 @@ RUN: llvm-nm %p/Inputs/trivial-object-test.macho-x86-64 \
 RUN:         | FileCheck %s -check-prefix macho64
 RUN: llvm-nm %p/Inputs/macho-text-data-bss.macho-x86_64 \
 RUN:         | FileCheck %s -check-prefix macho-tdb
+RUN: llvm-nm -j %p/Inputs/macho-text-data-bss.macho-x86_64 \
+RUN:         | FileCheck %s -check-prefix macho-j
 RUN: llvm-nm -r %p/Inputs/macho-text-data-bss.macho-x86_64 \
 RUN:         | FileCheck %s -check-prefix macho-r
 RUN: llvm-nm %p/Inputs/common.coff-i386 \
@@ -85,6 +87,12 @@ macho-tdb: 000000000000000c D _d
 macho-tdb: 0000000000000000 T _t
 macho-tdb: 0000000000000048 S _t.eh
 
+macho-j: EH_frame0
+macho-j: _b
+macho-j: _d
+macho-j: _t
+macho-j: _t.eh
+
 macho-r: 0000000000000048 S _t.eh
 macho-r-NEXT: 0000000000000000 T _t
 macho-r-NEXT: 000000000000000c D _d
diff --git a/llvm/tools/llvm-nm/llvm-nm.cpp b/llvm/tools/llvm-nm/llvm-nm.cpp
index 3f9ce24471a9..d3918547d84d 100644
--- a/llvm/tools/llvm-nm/llvm-nm.cpp
+++ b/llvm/tools/llvm-nm/llvm-nm.cpp
@@ -131,6 +131,11 @@ cl::opt<bool> WithoutAliases("without-aliases", cl::Hidden,
 cl::opt<bool> ArchiveMap("print-armap", cl::desc("Print the archive map"));
 cl::alias ArchiveMaps("s", cl::desc("Alias for --print-armap"),
                       cl::aliasopt(ArchiveMap));
+
+cl::opt<bool> JustSymbolName("just-symbol-name",
+                             cl::desc("Print just the symbol's name"));
+cl::alias JustSymbolNames("j", cl::desc("Alias for --just-symbol-name"),
+                          cl::aliasopt(JustSymbolName));
 bool PrintAddress = true;
 
 bool MultipleFiles = false;
@@ -446,6 +451,10 @@ static void sortAndPrintSymbolList(SymbolicFile *Obj, bool printName) {
       continue;
     if (SizeSort && !PrintAddress && I->Size == UnknownAddressOrSize)
       continue;
+    if (JustSymbolName) {
+      outs() << I->Name << "\n";
+      continue;
+    }
 
     char SymbolAddrStr[18] = "";
     char SymbolSizeStr[18] = "";