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Diffstat (limited to 'test/ELF/arm-blx-v4t.s')
| -rw-r--r-- | test/ELF/arm-blx-v4t.s | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/test/ELF/arm-blx-v4t.s b/test/ELF/arm-blx-v4t.s new file mode 100644 index 000000000000..858b93fd5891 --- /dev/null +++ b/test/ELF/arm-blx-v4t.s @@ -0,0 +1,30 @@ +// RUN: llvm-mc -filetype=obj -triple=arm-none-linux-gnueabi %s -o %t +// RUN: ld.lld %t -o %t2 2>&1 | FileCheck %s +// REQUIRES: arm + +// On Arm v4t there is no blx instruction so all interworking must go via +// a thunk. At present we don't support v4t so we give a warning for unsupported +// features. + +// CHECK: warning: lld uses blx instruction, no object with architecture supporting feature detected. +// CHECK-NEXT: warning: lld uses extended branch encoding, no object with architecture supporting feature detected. +// CHECK-NEXT: warning: lld may use movt/movw, no object with architecture supporting feature detected. + + .text + .syntax unified + .cpu arm7tdmi + .eabi_attribute 6, 2 @ Tag_CPU_arch + .arm + .globl _start + .type _start,%function + .p2align 2 +_start: + bl thumbfunc + bx lr + + .thumb + .section .text.2, "ax", %progbits + .globl thumbfunc + .type thumbfunc,%function +thumbfunc: + bx lr |