xref: /llvm-project/lld/test/ELF/x86-64-plt.s (revision 75cdab6dc2453a508157a9c383b93373a93078d6)
1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
3# RUN: llvm-mc -filetype=obj -triple=x86_64 %p/Inputs/shared.s -o %t2.o
4# RUN: ld.lld -shared -soname=t2 %t2.o -o %t2.so
5
6# RUN: ld.lld %t.o %t2.so -o %t
7# RUN: ld.lld -shared %t.o %t2.so -o %t.so
8# RUN: llvm-readelf -S -r %t | FileCheck %s --check-prefix=CHECK1
9# RUN: llvm-objdump --no-print-imm-hex -d --no-show-raw-insn %t | FileCheck %s --check-prefixes=DISASM,DISASM1
10# RUN: llvm-readelf -S -r %t.so | FileCheck %s --check-prefix=CHECK2
11# RUN: llvm-objdump --no-print-imm-hex -d --no-show-raw-insn %t.so | FileCheck %s --check-prefixes=DISASM,DISASM2
12
13# CHECK1:      Name      Type     Address          Off    Size   ES Flg Lk Inf Al
14# CHECK1:      .plt      PROGBITS 00000000002012e0 0002e0 000030 00 AX   0   0 16
15# CHECK1:      .got.plt  PROGBITS 00000000002033e0 0003e0 000028 00 WA   0   0  8
16# CHECK1:      Relocation section '.rela.plt' at offset {{.*}} contains 2 entries:
17# CHECK1:      00000000002033f8 {{.*}} R_X86_64_JUMP_SLOT 0000000000000000 weak + 0
18# CHECK1-NEXT: 0000000000203400 {{.*}} R_X86_64_JUMP_SLOT 0000000000000000 bar + 0
19
20# CHECK2:      Name      Type     Address          Off    Size   ES Flg Lk Inf Al
21# CHECK2:      .plt      PROGBITS 0000000000001310 000310 000030 00 AX   0   0 16
22# CHECK2:      .got.plt  PROGBITS 0000000000003400 000400 000028 00 WA   0   0  8
23# CHECK2:      Relocation section '.rela.plt' at offset {{.*}} contains 2 entries:
24# CHECK2:      0000000000003418 {{.*}} R_X86_64_JUMP_SLOT 0000000000000000 weak + 0
25# CHECK2-NEXT: 0000000000003420 {{.*}} R_X86_64_JUMP_SLOT 0000000000000000 bar + 0
26
27# DISASM:       <_start>:
28# DISASM-NEXT:    callq {{.*}} <local>
29# DISASM-NEXT:    callq {{.*}} <bar@plt>
30# DISASM-NEXT:    jmp   {{.*}} <bar@plt>
31# DISASM-NEXT:    jmp   {{.*}} <weak@plt>
32
33# DISASM1:      Disassembly of section .plt:
34# DISASM1-EMPTY:
35# DISASM1-NEXT: <.plt>:
36# DISASM1-NEXT: 2012e0:     pushq 8450(%rip)  # 0x2033e8
37# DISASM1-NEXT:             jmpq *8452(%rip)  # 0x2033f0
38# DISASM1-NEXT:             nopl (%rax)
39# DISASM1-EMPTY:
40# DISASM1-NEXT: <weak@plt>:
41# DISASM1-NEXT: 2012f0:     jmpq *8450(%rip)  # 0x2033f8
42# DISASM1-NEXT:             pushq $0
43# DISASM1-NEXT:             jmp 0x2012e0 <.plt>
44# DISASM1-EMPTY:
45# DISASM1-NEXT: <bar@plt>:
46# DISASM1-NEXT: 201300:     jmpq *8442(%rip)  # 0x203400
47# DISASM1-NEXT:             pushq $1
48# DISASM1-NEXT:             jmp 0x2012e0 <.plt>
49# DISASM1-NOT:  {{.}}
50
51# DISASM2:      Disassembly of section .plt:
52# DISASM2-EMPTY:
53# DISASM2-NEXT: <.plt>:
54# DISASM2-NEXT:   1310:     pushq 8434(%rip)  # 0x3408
55# DISASM2-NEXT:             jmpq *8436(%rip)  # 0x3410
56# DISASM2-NEXT:             nopl (%rax)
57# DISASM2-EMPTY:
58# DISASM2-NEXT: <weak@plt>:
59# DISASM2-NEXT:   1320:     jmpq *8434(%rip)  # 0x3418
60# DISASM2-NEXT:             pushq $0
61# DISASM2-NEXT:             jmp 0x1310 <.plt>
62# DISASM2-EMPTY:
63# DISASM2-NEXT: <bar@plt>:
64# DISASM2-NEXT:   1330:     jmpq *8426(%rip)  # 0x3420
65# DISASM2-NEXT:             pushq $1
66# DISASM2-NEXT:             jmp 0x1310 <.plt>
67# DISASM2-NOT:  {{.}}
68
69.global _start
70.weak weak
71
72_start:
73  call local
74  call bar
75  jmp bar@plt
76  jmp weak
77
78## foo is local and non-preemptale, no PLT is generated.
79local:
80  ret
81