xref: /llvm-project/lld/test/ELF/arm-gnu-ifunc-plt.s (revision 9ea44c6894270546d6d88ef0d3abcf1e1876acae)
1// REQUIRES: arm
2// RUN: llvm-mc -filetype=obj -triple=armv7a-linux-gnueabihf %S/Inputs/arm-shared.s -o %t1.o
3// RUN: ld.lld %t1.o --shared -soname=t.so -o %t.so
4// RUN: llvm-mc -filetype=obj -triple=armv7a-linux-gnueabihf %s -o %t.o
5// RUN: ld.lld %t.so %t.o -o %tout
6// RUN: llvm-objdump --no-print-imm-hex --triple=armv7a-linux-gnueabihf -d --no-show-raw-insn %tout | FileCheck %s --check-prefix=DISASM
7// RUN: llvm-objdump -s %tout | FileCheck %s --check-prefix=GOTPLT
8// RUN: llvm-readobj -r --dynamic-table %tout | FileCheck %s
9
10// Check that the IRELATIVE relocations are last in the .got
11// CHECK: Relocations [
12// CHECK-NEXT:   Section (5) .rel.dyn {
13// CHECK-NEXT:     0x302E0 R_ARM_GLOB_DAT bar2
14// CHECK-NEXT:     0x302E4 R_ARM_GLOB_DAT zed2
15// CHECK-NEXT:     0x302E8 R_ARM_IRELATIVE -
16// CHECK-NEXT:     0x302EC R_ARM_IRELATIVE -
17// CHECK-NEXT:   }
18// CHECK-NEXT:   Section (6) .rel.plt {
19// CHECK-NEXT:     0x402FC R_ARM_JUMP_SLOT bar2
20// CHECK-NEXT:     0x40300 R_ARM_JUMP_SLOT zed2
21// CHECK-NEXT:   }
22// CHECK-NEXT: ]
23
24// Check that the GOT entries refer back to the ifunc resolver
25// GOTPLT: Contents of section .got:
26// GOTPLT-NEXT:  302e0 00000000 00000000 dc010200 e0010200
27// GOTPLT: Contents of section .got.plt:
28// GOTPLT-NEXT:  402f0 00000000 00000000 00000000 00020200
29// GOTPLT-NEXT:  40300 00020200
30
31// DISASM: Disassembly of section .text:
32// DISASM-EMPTY:
33// DISASM-NEXT: <foo>:
34// DISASM-NEXT:    201dc:       bx      lr
35// DISASM: <bar>:
36// DISASM-NEXT:    201e0:       bx      lr
37// DISASM: <_start>:
38// DISASM-NEXT:    201e4:       bl      0x20240
39// DISASM-NEXT:    201e8:       bl      0x20250
40// DISASM-NEXT:    201ec:       00 00 00 00     .word   0x00000000
41// DISASM-NEXT:    201f0:       04 00 00 00     .word   0x00000004
42// DISASM:         201f4:       bl      0x20220
43// DISASM-NEXT:    201f8:       bl      0x20230
44// DISASM-EMPTY:
45// DISASM-NEXT: Disassembly of section .plt:
46// DISASM-EMPTY:
47// DISASM-NEXT: <.plt>:
48// DISASM-NEXT:    20200:       str     lr, [sp, #-4]!
49// DISASM-NEXT:    20204:       add     lr, pc, #0, #12
50// DISASM-NEXT:    20208:       add     lr, lr, #32
51// DISASM-NEXT:    2020c:       ldr     pc, [lr, #236]!
52// DISASM-NEXT:    20210:       d4 d4 d4 d4     .word   0xd4d4d4d4
53// DISASM-NEXT:    20214:       d4 d4 d4 d4     .word   0xd4d4d4d4
54// DISASM-NEXT:    20218:       d4 d4 d4 d4     .word   0xd4d4d4d4
55// DISASM-NEXT:    2021c:       d4 d4 d4 d4     .word   0xd4d4d4d4
56// DISASM-NEXT:    20220:       add     r12, pc, #0, #12
57// DISASM-NEXT:    20224:       add     r12, r12, #32
58// DISASM-NEXT:    20228:       ldr     pc, [r12, #212]!
59// DISASM-NEXT:    2022c:       d4 d4 d4 d4     .word   0xd4d4d4d4
60// DISASM-NEXT:    20230:       add     r12, pc, #0, #12
61// DISASM-NEXT:    20234:       add     r12, r12, #32
62// DISASM-NEXT:    20238:       ldr     pc, [r12, #200]!
63// DISASM-NEXT:    2023c:       d4 d4 d4 d4     .word   0xd4d4d4d4
64// DISASM:       <.iplt>:
65// DISASM-NEXT:    20240:       add     r12, pc, #0, #12
66// DISASM-NEXT:    20244:       add     r12, r12, #16
67// DISASM-NEXT:    20248:       ldr     pc, [r12, #160]!
68// DISASM-NEXT:    2024c:       d4 d4 d4 d4     .word   0xd4d4d4d4
69// DISASM-NEXT:    20250:       add     r12, pc, #0, #12
70// DISASM-NEXT:    20254:       add     r12, r12, #16
71// DISASM-NEXT:    20258:       ldr     pc, [r12, #148]!
72// DISASM-NEXT:    2025c:	d4 d4 d4 d4 	.word	0xd4d4d4d4
73
74.syntax unified
75.text
76.type foo STT_GNU_IFUNC
77.globl foo
78foo:
79 bx lr
80
81.type bar STT_GNU_IFUNC
82.globl bar
83bar:
84 bx lr
85
86.globl _start
87_start:
88 bl foo
89 bl bar
90 // Create entries in the .got and .rel.dyn so that we don't just have
91 // IRELATIVE
92 .word bar2(got)
93 .word zed2(got)
94 bl bar2
95 bl zed2
96