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

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/x86-64-split-stack-extra.s -o %t2.o
   3 # RUN: ld.lld --defsym __morestack=0x100 --defsym __morestack_non_split=0x200 %t2.o -o %t4.so  -shared
   4
   5 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1.o
   6 # RUN: ld.lld --defsym __morestack=0x100 --defsym __morestack_non_split=0x200 %t1.o %t4.so -o %t
   7 # RUN: llvm-objdump -d %t | FileCheck %s
   8
   9 # For a cross .so call, make sure lld produced the conservative call to __morestack_non_split.
  10 # CHECK: <prologue1_cross_so_call>:
  11 # CHECK-NEXT: stc{{.*$}}
  12 # CHECK-NEXT: nopl{{.*$}}
  13 # CHECK: jae{{.*$}}
  14 # CHECK-NEXT: callq{{.*}}<__morestack_non_split>
  15
  16         .text
  17
  18         .global prologue1_cross_so_call
  19         .type   prologue1_cross_so_call,@function
  20 prologue1_cross_so_call:
  21         cmp %fs:0x70,%rsp
  22         jae 1f
  23         callq __morestack
  24         retq
  25 1:
  26         callq split
  27         retq
  28         .size   prologue1_cross_so_call,. - prologue1_cross_so_call
  29
  30         .section        .note.GNU-stack,"",@progbits
  31         .section        .note.GNU-split-stack,"",@progbits