aarch64-gnu-ifunc-plt.s
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// REQUIRES: aarch64
// RUN: llvm-mc -filetype=obj -triple=aarch64-none-linux-gnu %S/Inputs/shared2.s -o %t1.o
// RUN: ld.lld %t1.o --shared --soname=t.so -o %t.so
// RUN: llvm-mc -filetype=obj -triple=aarch64-none-linux-gnu %s -o %t.o
// RUN: ld.lld --hash-style=sysv %t.so %t.o -o %tout
// RUN: llvm-objdump -d --no-show-raw-insn %tout | FileCheck %s --check-prefix=DISASM
// RUN: llvm-objdump -s %tout | FileCheck %s --check-prefix=GOTPLT
// RUN: llvm-readobj -r --dynamic-table %tout | FileCheck %s
// Check that the IRELATIVE relocations are after the JUMP_SLOT in the plt
// CHECK: Relocations [
// CHECK-NEXT: Section (4) .rela.dyn {
// CHECK-NEXT: 0x230468 R_AARCH64_IRELATIVE - 0x2102D8
// CHECK-NEXT: 0x230470 R_AARCH64_IRELATIVE - 0x2102DC
// CHECK-NEXT: }
// CHECK-NEXT: Section (5) .rela.plt {
// CHECK-NEXT: 0x230458 R_AARCH64_JUMP_SLOT bar2 0x0
// CHECK-NEXT: 0x230460 R_AARCH64_JUMP_SLOT zed2 0x0
// CHECK-NEXT: }
// CHECK-NEXT: ]
// Check that .got.plt entries point back to PLT header
// GOTPLT: Contents of section .got.plt:
// GOTPLT-NEXT: 230440 00000000 00000000 00000000 00000000
// GOTPLT-NEXT: 230450 00000000 00000000 f0022100 00000000
// GOTPLT-NEXT: 230460 f0022100 00000000 00000000 00000000
// GOTPLT-NEXT: 230470 00000000 00000000
// Check that the PLTRELSZ tag does not include the IRELATIVE relocations
// CHECK: DynamicSection [
// CHECK: 0x0000000000000008 RELASZ 48 (bytes)
// CHECK: 0x0000000000000002 PLTRELSZ 48 (bytes)
// Check that a PLT header is written and the ifunc entries appear last
// DISASM: Disassembly of section .text:
// DISASM-EMPTY:
// DISASM-NEXT: foo:
// DISASM-NEXT: 2102d8: ret
// DISASM: bar:
// DISASM-NEXT: 2102dc: ret
// DISASM: _start:
// DISASM-NEXT: 2102e0: bl #80 <zed2+0x210330>
// DISASM-NEXT: 2102e4: bl #92 <zed2+0x210340>
// DISASM-NEXT: 2102e8: bl #40 <bar2@plt>
// DISASM-NEXT: 2102ec: bl #52 <zed2@plt>
// DISASM-EMPTY:
// DISASM-NEXT: Disassembly of section .plt:
// DISASM-EMPTY:
// DISASM-NEXT: .plt:
// DISASM-NEXT: 2102f0: stp x16, x30, [sp, #-16]!
// DISASM-NEXT: 2102f4: adrp x16, #131072
// DISASM-NEXT: 2102f8: ldr x17, [x16, #1104]
// DISASM-NEXT: 2102fc: add x16, x16, #1104
// DISASM-NEXT: 210300: br x17
// DISASM-NEXT: 210304: nop
// DISASM-NEXT: 210308: nop
// DISASM-NEXT: 21030c: nop
// DISASM-EMPTY:
// DISASM-NEXT: bar2@plt:
// DISASM-NEXT: 210310: adrp x16, #131072
// DISASM-NEXT: 210314: ldr x17, [x16, #1112]
// DISASM-NEXT: 210318: add x16, x16, #1112
// DISASM-NEXT: 21031c: br x17
// DISASM-EMPTY:
// DISASM-NEXT: zed2@plt:
// DISASM-NEXT: 210320: adrp x16, #131072
// DISASM-NEXT: 210324: ldr x17, [x16, #1120]
// DISASM-NEXT: 210328: add x16, x16, #1120
// DISASM-NEXT: 21032c: br x17
// DISASM-EMPTY:
// DISASM-NEXT: Disassembly of section .iplt:
// DISASM-EMPTY:
// DISASM-NEXT: .iplt:
// DISASM-NEXT: 210330: adrp x16, #131072
// DISASM-NEXT: 210334: ldr x17, [x16, #1128]
// DISASM-NEXT: 210338: add x16, x16, #1128
// DISASM-NEXT: 21033c: br x17
// DISASM-NEXT: 210340: adrp x16, #131072
// DISASM-NEXT: 210344: ldr x17, [x16, #1136]
// DISASM-NEXT: 210348: add x16, x16, #1136
// DISASM-NEXT: 21034c: br x17
.text
.type foo STT_GNU_IFUNC
.globl foo
foo:
ret
.type bar STT_GNU_IFUNC
.globl bar
bar:
ret
.globl _start
_start:
bl foo
bl bar
bl bar2
bl zed2