lld/test/ELF/arm-cmse-secure.s

   1 // REQUIRES: arm
   2 /// Create a secure app and import library using CMSE.
   3 /// Create a non-secure app that refers symbols in the import library.
   4
   5 // RUN: rm -rf %t && split-file %s %t && cd %t
   6 // RUN: llvm-mc -arm-add-build-attributes -filetype=obj --triple=thumbv8m.main cmse-implib.s -o implib.o -I%S/Inputs/
   7 // RUN: llvm-mc -arm-add-build-attributes -filetype=obj --triple=thumbv8m.main cmse-secure-app.s -o secureapp.o
   8 // RUN: llvm-mc -arm-add-build-attributes -filetype=obj --triple=thumbv8m.main cmse-non-secure-app.s -o nonsecureapp.o
   9 /// Create the secure app and import library.
  10 // RUN: ld.lld -e secure_entry --section-start .gnu.sgstubs=0x20000 --cmse-implib implib.o secureapp.o --out-implib=implib.lib -o secureapp
  11 /// Link the non-secure app against the import library.
  12 // RUN: ld.lld -e nonsecure_entry -Ttext=0x8000 implib.lib nonsecureapp.o -o nonsecureapp
  13 // RUN: llvm-readelf -s implib.lib | FileCheck %s
  14 // RUN: llvm-objdump -d --no-show-raw-insn secureapp | FileCheck %s --check-prefixes=SECUREDISS
  15 // RUN: llvm-objdump -d --no-show-raw-insn nonsecureapp | FileCheck %s --check-prefixes=NONSECUREDISS
  16
  17 // SECUREDISS-LABEL: <entry>:
  18 // SECUREDISS-NEXT:    20000: sg
  19 // SECUREDISS-NEXT:           b.w {{.*}} <__acle_se_entry>
  20
  21 // SECUREDISS-LABEL: <__acle_se_entry>:
  22 // SECUREDISS-NEXT:    20008: nop
  23
  24 // SECUREDISS-LABEL: <secure_entry>:
  25 // SECUREDISS-NEXT:    2000c: bl {{.*}} <__acle_se_entry>
  26 // SECUREDISS-NEXT:           bx lr
  27
  28 // NONSECUREDISS-LABEL: <nonsecure_entry>:
  29 // NONSECUREDISS-NEXT:  8000: push {r0, lr}
  30 // NONSECUREDISS-NEXT:  bl 0x20000
  31 // NONSECUREDISS-NEXT:  pop.w {r0, lr}
  32 // NONSECUREDISS-NEXT:  bx lr
  33
  34 // CHECK:      Symbol table '.symtab' contains 2 entries:
  35 // CHECK-NEXT:    Num:    Value  Size Type    Bind   Vis       Ndx Name
  36 // CHECK-NEXT:      0: 00000000     0 NOTYPE  LOCAL  DEFAULT   UND
  37 // CHECK-NEXT:      1: 00020001     8 FUNC    GLOBAL DEFAULT   ABS entry
  38
  39 //--- cmse-implib.s
  40   .include "arm-cmse-macros.s"
  41
  42   .syntax unified
  43   .text
  44
  45   cmse_veneer entry, function, global, function, global
  46
  47 //--- cmse-secure-app.s
  48   .align  2
  49     // Main entry point.
  50     .global secure_entry
  51     .thumb_func
  52 secure_entry:
  53     bl entry
  54     bx lr
  55   .size  secure_entry, .-secure_entry
  56
  57 //--- cmse-non-secure-app.s
  58   .align  2
  59   .global nonsecure_entry
  60   .thumb
  61   .thumb_func
  62   .type  nonsecure_entry, %function
  63 nonsecure_entry:
  64   push {r0,lr}
  65   bl entry
  66   pop {r0,lr}
  67   bx lr
  68   .size  nonsecure_entry, .-nonsecure_entry