lld/test/ELF/x86-64-split-stack-prologue-adjust-silent.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1.o
   3 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/x86-64-split-stack-main.s -o %t2.o
   4
   5 # RUN: ld.lld --defsym __morestack=0x100 --defsym __morestack_non_split=0x200 %t1.o %t2.o -o %t
   6 # RUN: llvm-objdump -d %t 2>&1 | FileCheck %s
   7
   8 # An unknown prologue ordinarily gives a match failure, except that this
   9 # object file includes a .note.GNU-no-split-stack section, which tells the
  10 # linker to expect such prologues, and therefore not error.
  11
  12 # CHECK: __morestack
  13
  14         .text
  15
  16         .global unknown_prologue
  17         .type   unknown_prologue,@function
  18 unknown_prologue:
  19         push %rbp
  20         mov %rsp,%rbp
  21         cmp %fs:0x70,%rsp
  22         jae 1f
  23         callq __morestack
  24         retq
  25 1:
  26         callq non_split
  27         leaveq
  28         retq
  29
  30         .size unknown_prologue,. - unknown_prologue
  31         .section .note.GNU-split-stack,"",@progbits
  32         .section .note.GNU-no-split-stack,"",@progbits