diff options
Diffstat (limited to 'test/ELF/x86-64-split-stack-prologue-adjust-shared.s')
| -rw-r--r-- | test/ELF/x86-64-split-stack-prologue-adjust-shared.s | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/test/ELF/x86-64-split-stack-prologue-adjust-shared.s b/test/ELF/x86-64-split-stack-prologue-adjust-shared.s new file mode 100644 index 000000000000..9da2dde2e208 --- /dev/null +++ b/test/ELF/x86-64-split-stack-prologue-adjust-shared.s @@ -0,0 +1,31 @@ +# REQUIRES: x86 +# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/x86-64-split-stack-extra.s -o %t2.o +# RUN: ld.lld --defsym __morestack=0x100 --defsym __morestack_non_split=0x200 %t2.o -o %t4.so -shared + +# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1.o +# RUN: ld.lld --defsym __morestack=0x100 --defsym __morestack_non_split=0x200 %t1.o %t4.so -o %t +# RUN: llvm-objdump -d %t | FileCheck %s + +# For a cross .so call, make sure lld produced the conservative call to __morestack_non_split. +# CHECK: prologue1_cross_so_call: +# CHECK-NEXT: stc{{.*$}} +# CHECK-NEXT: nopl{{.*$}} +# CHECK: jae{{.*$}} +# CHECK-NEXT: callq{{.*}}<__morestack_non_split> + + .text + + .global prologue1_cross_so_call + .type prologue1_cross_so_call,@function +prologue1_cross_so_call: + cmp %fs:0x70,%rsp + jae 1f + callq __morestack + retq +1: + callq split + retq + .size prologue1_cross_so_call,. - prologue1_cross_so_call + + .section .note.GNU-stack,"",@progbits + .section .note.GNU-split-stack,"",@progbits |