From 8c8fae7268121d10ae4203062fc3ffe79759dbd3 Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Tue, 22 Apr 2014 19:11:07 +0000
Subject: Follow aliases when determining if a symbol is thumb.

This fixes pr19484.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206917 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/MC/ELFObjectWriter.cpp  |  3 +--
 test/MC/ARM/elf-thumbfunc.s | 12 +++++++++++-
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/lib/MC/ELFObjectWriter.cpp b/lib/MC/ELFObjectWriter.cpp
index 0885688d26..636d449e20 100644
--- a/lib/MC/ELFObjectWriter.cpp
+++ b/lib/MC/ELFObjectWriter.cpp
@@ -492,7 +492,6 @@ uint64_t ELFObjectWriter::SymbolValue(MCSymbolData &OrigData,
     return Data->getCommonAlignment();
 
   const MCSymbol *Symbol = &Data->getSymbol();
-  bool IsThumbFunc = OrigData.getFlags() & ELF_Other_ThumbFunc;
 
   uint64_t Res = 0;
   if (Symbol->isVariable()) {
@@ -514,7 +513,7 @@ uint64_t ELFObjectWriter::SymbolValue(MCSymbolData &OrigData,
     }
   }
 
-  if (IsThumbFunc)
+  if (Data && Data->getFlags() & ELF_Other_ThumbFunc)
     Res |= 1;
 
   if (!Symbol || !Symbol->isInSection())
diff --git a/test/MC/ARM/elf-thumbfunc.s b/test/MC/ARM/elf-thumbfunc.s
index 0ea11821b9..af061b50bc 100644
--- a/test/MC/ARM/elf-thumbfunc.s
+++ b/test/MC/ARM/elf-thumbfunc.s
@@ -11,7 +11,17 @@
 foo:
 	bx	lr
 
-@@ make sure foo is thumb function: bit 0 = 1 (st_value)
+	.global bar
+bar = foo
+
+@@ make sure foo and bar are thumb function: bit 0 = 1 (st_value)
+@CHECK:        Symbol {
+@CHECK:          Name: bar
+@CHECK-NEXT:     Value: 0x1
+@CHECK-NEXT:     Size: 0
+@CHECK-NEXT:     Binding: Global
+@CHECK-NEXT:     Type: Function
+
 @CHECK:        Symbol {
 @CHECK:          Name: foo
 @CHECK-NEXT:     Value: 0x1
-- 
cgit v1.2.3