llvm-project/lld/test/ELF/gnu-ifunc-plt-i386.s

77 lines
3.1 KiB
ArmAsm

// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %S/Inputs/shared2-x86-64.s -o %t1.o
// RUN: ld.lld %t1.o --shared -o %t.so
// RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t.o
// RUN: ld.lld --hash-style=sysv %t.so %t.o -o %tout
// RUN: llvm-objdump -d %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
// REQUIRES: x86
// Check that the IRELATIVE relocations are after the JUMP_SLOT in the plt
// CHECK: Relocations [
// CHECK-NEXT: Section (4) .rel.plt {
// CHECK-NEXT: 0x1200C R_386_JUMP_SLOT bar2
// CHECK-NEXT: 0x12010 R_386_JUMP_SLOT zed2
// CHECK-NEXT: 0x12014 R_386_IRELATIVE
// CHECK-NEXT: 0x12018 R_386_IRELATIVE
// Check that IRELATIVE .got.plt entries point to ifunc resolver and not
// back to the plt entry + 6.
// GOTPLT: Contents of section .got.plt:
// GOTPLT: 12000 00300100 00000000 00000000 36100100
// GOTPLT-NEXT: 12010 46100100 00100100 01100100
// Check that the PLTRELSZ tag includes the IRELATIVE relocations
// CHECK: DynamicSection [
// CHECK: 0x00000002 PLTRELSZ 32 (bytes)
// Check that a PLT header is written and the ifunc entries appear last
// DISASM: Disassembly of section .text:
// DISASM-NEXT: foo:
// DISASM-NEXT: 11000: c3 retl
// DISASM: bar:
// DISASM-NEXT: 11001: c3 retl
// DISASM: _start:
// DISASM-NEXT: 11002: e8 49 00 00 00 calll 73
// DISASM-NEXT: 11007: e8 54 00 00 00 calll 84
// DISASM-NEXT: 1100c: e8 1f 00 00 00 calll 31
// DISASM-NEXT: 11011: e8 2a 00 00 00 calll 42
// DISASM-NEXT: Disassembly of section .plt:
// DISASM-NEXT: .plt:
// DISASM-NEXT: 11020: ff 35 04 20 01 00 pushl 73732
// DISASM-NEXT: 11026: ff 25 08 20 01 00 jmpl *73736
// DISASM-NEXT: 1102c: 90 nop
// DISASM-NEXT: 1102d: 90 nop
// DISASM-NEXT: 1102e: 90 nop
// DISASM-NEXT: 1102f: 90 nop
// DISASM-NEXT: 11030: ff 25 0c 20 01 00 jmpl *73740
// DISASM-NEXT: 11036: 68 00 00 00 00 pushl $0
// DISASM-NEXT: 1103b: e9 e0 ff ff ff jmp -32 <.plt>
// DISASM-NEXT: 11040: ff 25 10 20 01 00 jmpl *73744
// DISASM-NEXT: 11046: 68 08 00 00 00 pushl $8
// DISASM-NEXT: 1104b: e9 d0 ff ff ff jmp -48 <.plt>
// DISASM-NEXT: 11050: ff 25 14 20 01 00 jmpl *73748
// DISASM-NEXT: 11056: 68 30 00 00 00 pushl $48
// DISASM-NEXT: 1105b: e9 e0 ff ff ff jmp -32 <.plt+0x20>
// DISASM-NEXT: 11060: ff 25 18 20 01 00 jmpl *73752
// DISASM-NEXT: 11066: 68 38 00 00 00 pushl $56
// DISASM-NEXT: 1106b: e9 d0 ff ff ff jmp -48 <.plt+0x20>
.text
.type foo STT_GNU_IFUNC
.globl foo
foo:
ret
.type bar STT_GNU_IFUNC
.globl bar
bar:
ret
.globl _start
_start:
call foo
call bar
call bar2
call zed2