1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/x86-64-split-stack-extra.s -o %t2.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/x86-64-split-stack-main.s -o %t3.o
# RUN: not ld.lld --defsym __morestack=0x100 --defsym __more_stack_nonsplit=0x200 %t1.o %t2.o %t3.o -o /dev/null 2>&1 | FileCheck %s
# An unknown prologue gives a match failure
# CHECK: error: {{.*}}.o:(.text): unknown_prologue (with -fsplit-stack) calls non_split (without -fsplit-stack), but couldn't adjust its prologue
# RUN: not ld.lld -r --defsym __morestack=0x100 %t1.o %t2.o -o /dev/null 2>&1 | FileCheck %s -check-prefix=RELOCATABLE
# RELOCATABLE: cannot mix split-stack and non-split-stack in a relocatable link
# RUN: not ld.lld --defsym __morestack=0x100 --defsym _start=0x300 %t1.o %t2.o %t3.o -o /dev/null 2>&1 | FileCheck %s -check-prefix=ERROR
# ERROR: mixing split-stack objects requires a definition of __morestack_non_split
.text
.global unknown_prologue
.type unknown_prologue,@function
unknown_prologue:
push %rbp
mov %rsp,%rbp
cmp %fs:0x70,%rsp
jae 1f
callq __morestack
retq
1:
callq non_split
leaveq
retq
.size unknown_prologue,. - unknown_prologue
.section .note.GNU-split-stack,"",@progbits
|
