1// REQUIRES: x86 2 3/// Test -z ifunc-noplt. 4 5// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-freebsd %S/Inputs/shared2-x86-64.s -o %t1.o 6// RUN: ld.lld %t1.o --shared -soname=so -o %t.so 7// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-freebsd %s -o %t.o 8 9/// The default -z text is not compatible with -z ifunc-noplt. 10// RUN: not ld.lld -z ifunc-noplt %t.o -o /dev/null 2>&1| FileCheck --check-prefix=INCOMPATIBLE %s 11// RUN: not ld.lld -z ifunc-noplt -z text %t.o -o /dev/null 2>&1| FileCheck --check-prefix=INCOMPATIBLE %s 12// INCOMPATIBLE: -z text and -z ifunc-noplt may not be used together 13 14// RUN: ld.lld -z ifunc-noplt -z notext --hash-style=sysv %t.so %t.o -o %tout 15// RUN: llvm-objdump -d --no-show-raw-insn %tout | FileCheck %s --check-prefix=DISASM 16// RUN: llvm-readobj -r --dynamic-table %tout | FileCheck %s 17 18// Check that we emitted relocations for the ifunc calls 19// CHECK: Relocations [ 20// CHECK-NEXT: Section (4) .rela.dyn { 21// CHECK-NEXT: 0x201328 R_X86_64_PLT32 bar 0xFFFFFFFFFFFFFFFC 22// CHECK-NEXT: 0x201323 R_X86_64_PLT32 foo 0xFFFFFFFFFFFFFFFC 23// CHECK-NEXT: } 24// CHECK-NEXT: Section (5) .rela.plt { 25// CHECK-NEXT: 0x203498 R_X86_64_JUMP_SLOT bar2 0x0 26// CHECK-NEXT: 0x2034A0 R_X86_64_JUMP_SLOT zed2 0x0 27// CHECK-NEXT: } 28 29// Check that ifunc call sites still require relocation 30// DISASM: Disassembly of section .text: 31// DISASM-EMPTY: 32// DISASM-NEXT: 0000000000201320 <foo>: 33// DISASM-NEXT: 201320: retq 34// DISASM-EMPTY: 35// DISASM-NEXT: 0000000000201321 <bar>: 36// DISASM-NEXT: 201321: retq 37// DISASM-EMPTY: 38// DISASM-NEXT: 0000000000201322 <_start>: 39// DISASM-NEXT: 201322: callq 0x201327 <_start+0x5> 40// DISASM-NEXT: 201327: callq 0x20132c <_start+0xa> 41// DISASM-NEXT: 20132c: callq 0x201350 <bar2@plt> 42// DISASM-NEXT: 201331: callq 0x201360 <zed2@plt> 43// DISASM-EMPTY: 44// DISASM-NEXT: Disassembly of section .plt: 45// DISASM-EMPTY: 46// DISASM-NEXT: 0000000000201340 <.plt>: 47// DISASM-NEXT: 201340: pushq 8514(%rip) 48// DISASM-NEXT: 201346: jmpq *8516(%rip) 49// DISASM-NEXT: 20134c: nopl (%rax) 50// DISASM-EMPTY: 51// DISASM-NEXT: 0000000000201350 <bar2@plt>: 52// DISASM-NEXT: 201350: jmpq *8514(%rip) 53// DISASM-NEXT: 201356: pushq $0 54// DISASM-NEXT: 20135b: jmp 0x201340 <.plt> 55// DISASM-EMPTY: 56// DISASM-NEXT: 0000000000201360 <zed2@plt>: 57// DISASM-NEXT: 201360: jmpq *8506(%rip) 58// DISASM-NEXT: 201366: pushq $1 59// DISASM-NEXT: 20136b: jmp 0x201340 <.plt> 60 61.text 62.type foo STT_GNU_IFUNC 63.globl foo 64foo: 65 ret 66 67.type bar STT_GNU_IFUNC 68.globl bar 69bar: 70 ret 71 72.globl _start 73_start: 74 call foo 75 call bar 76 call bar2 77 call zed2 78