[Thumb] Set correct initial mapping symbol for big-endian thumb

The initial mapping symbol state is set from the triple, but we only checked
for the little-endian thumb triple, so could end up with an ARM mapping symbol
for big-endian thumb.

Differential Revision: https://reviews.llvm.org/D24553

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@281894 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp b/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp
index afb089ab0286f14e62dfaee6e520a90e2ec0ecd8..9e24d1e721b9b85375d9f86306cd19630c769e31 100644 (file)
--- a/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp
+++ b/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp
@@ -204,7 +204,8 @@ static MCStreamer *createELFStreamer(const Triple &T, MCContext &Ctx,
                                      MCAsmBackend &MAB, raw_pwrite_stream &OS,
                                      MCCodeEmitter *Emitter, bool RelaxAll) {
   return createARMELFStreamer(Ctx, MAB, OS, Emitter, false,
-                              T.getArch() == Triple::thumb);
+                              (T.getArch() == Triple::thumb ||
+                               T.getArch() == Triple::thumbeb));
 }
 
 static MCStreamer *createARMMachOStreamer(MCContext &Ctx, MCAsmBackend &MAB,

diff --git a/test/MC/ARM/mapping-initial.s b/test/MC/ARM/mapping-initial.s
new file mode 100644 (file)
index 0000000..d4197a6
--- /dev/null
+++ b/test/MC/ARM/mapping-initial.s
@@ -0,0 +1,9 @@
+@ RUN: llvm-mc -triple=armv7a-none-eabi     -filetype=obj < %s | llvm-objdump -t - | FileCheck %s --check-prefix=ARM
+@ RUN: llvm-mc -triple=armebv7a-none-eabi   -filetype=obj < %s | llvm-objdump -t - | FileCheck %s --check-prefix=ARM
+@ RUN: llvm-mc -triple=thumbv7a-none-eabi   -filetype=obj < %s | llvm-objdump -t - | FileCheck %s --check-prefix=THUMB
+@ RUN: llvm-mc -triple=thumbebv7a-none-eabi -filetype=obj < %s | llvm-objdump -t - | FileCheck %s --check-prefix=THUMB
+
+  add r0, r0, r0
+
+@ ARM:      00000000         .text  00000000 $a
+@ THUMB:    00000000         .text  00000000 $t