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
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=i386 %s -o %t.o
# RUN: llvm-mc -filetype=obj -triple=i386 %p/Inputs/i386-cet1.s -o %t1.o
# RUN: llvm-mc -filetype=obj -triple=i386 %p/Inputs/i386-cet2.s -o %t2.o
# RUN: llvm-mc -filetype=obj -triple=i386 %p/Inputs/i386-cet3.s -o %t3.o
# RUN: llvm-mc -filetype=obj -triple=i386 %p/Inputs/i386-cet4.s -o %t4.o
# RUN: ld.lld -e func1 %t.o %t1.o -o %t
# RUN: llvm-readelf -n %t | FileCheck --check-prefix=CET --match-full-lines %s
# RUN: ld.lld -e func1 %t.o %t2.o -o %t
# RUN: llvm-readelf -n %t | FileCheck --check-prefix=CET --match-full-lines %s
# CET: Properties: x86 feature: IBT, SHSTK
# RUN: ld.lld -e func1 %t.o %t3.o -o %t
# RUN: llvm-readelf -S %t | FileCheck --check-prefix=NOCET %s
# NOCET: Section Headers
# NOCET-NOT: .note.gnu.property
# RUN: ld.lld -e func1 %t.o %t3.o -o %t -z force-ibt 2>&1 \
# RUN: | FileCheck --check-prefix=WARN %s
# WARN: {{.*}}.o: -z force-ibt: file does not have GNU_PROPERTY_X86_FEATURE_1_IBT property
# RUN: ld.lld -e func1 %t.o %t4.o -o %t
# RUN: llvm-readelf -n %t | FileCheck --check-prefix=NOSHSTK %s
# Check .note.gnu.protery without property SHSTK.
# NOSHSTK: Properties: x86 feature: IBT{{$}}
# RUN: ld.lld -shared %t1.o -soname=so -o %t1.so
# RUN: ld.lld -e func1 %t.o %t1.so -o %t
# RUN: llvm-readelf -n %t | FileCheck --check-prefix=CET --match-full-lines %s
# RUN: llvm-readelf -x .got.plt %t | FileCheck --check-prefix=GOTPLT %s
# RUN: llvm-objdump -d --no-show-raw-insn --print-imm-hex %t | FileCheck --check-prefix=DISASM %s
# GOTPLT: Hex dump of section '.got.plt':
# GOTPLT-NEXT: 0x004032d0 50224000 00000000 00000000 20124000
# GOTPLT-NEXT: 0x004032e0 0b124000
# DISASM: Disassembly of section .text:
# DISASM: 00401200 <func1>:
# DISASM-NEXT: 401200: calll 0x401230 <func2+0x401230>
# DISASM-NEXT: 401205: calll 0x401240 <ifunc>
# DISASM-NEXT: retl
# DISASM: Disassembly of section .plt:
# DISASM: 00401210 <.plt>:
# DISASM-NEXT: 401210: pushl 0x4032d4
# DISASM-NEXT: jmpl *0x4032d8
# DISASM-NEXT: nop
# DISASM-NEXT: nop
# DISASM-NEXT: nop
# DISASM-NEXT: nop
# DISASM-NEXT: endbr32
# DISASM-NEXT: pushl $0x0
# DISASM-NEXT: jmp 0x401210 <.plt>
# DISASM-NEXT: nop
# DISASM: Disassembly of section .plt.sec:
# DISASM: 00401230 <.plt.sec>:
# DISASM-NEXT: 401230: endbr32
# DISASM-NEXT: jmpl *0x4032dc
# DISASM-NEXT: nopw (%eax,%eax)
# DISASM: Disassembly of section .iplt:
# DISASM: 00401240 <ifunc>:
# DISASM-NEXT: 401240: endbr32
# DISASM-NEXT: jmpl *0x4032e0
# DISASM-NEXT: nopw (%eax,%eax)
.section ".note.gnu.property", "a"
.long 4
.long 0xc
.long 0x5
.asciz "GNU"
.long 0xc0000002 # GNU_PROPERTY_X86_FEATURE_1_AND
.long 4
.long 3 # GNU_PROPERTY_X86_FEATURE_1_IBT and SHSTK
.text
.globl func1
.type func1,@function
func1:
call func2
call ifunc
ret
.type ifunc,@gnu_indirect_function
ifunc:
ret
|
