// REQUIRES: x86 // RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %S/Inputs/shared2-x86-64.s -o %t1.o // RUN: ld.lld %t1.o --shared --soname=t.so -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 --no-show-raw-insn --print-imm-hex %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 PLTRELSZ tag does not include the IRELATIVE relocations // CHECK: DynamicSection [ // CHECK: 0x00000012 RELSZ 24 (bytes) // CHECK: 0x00000002 PLTRELSZ 16 (bytes) /// Check that the IRELATIVE relocations are placed to the .rel.dyn section after /// other regular relocations (e.g. GLOB_DAT). // CHECK: Relocations [ // CHECK-NEXT: Section (4) .rel.dyn { // CHECK-NEXT: 0x4022C8 R_386_GLOB_DAT bar3 0x0 // CHECK-NEXT: 0x4032E0 R_386_IRELATIVE - 0x0 // CHECK-NEXT: 0x4032E4 R_386_IRELATIVE - 0x0 // CHECK-NEXT: } // CHECK-NEXT: Section (5) .rel.plt { // CHECK-NEXT: 0x4032D8 R_386_JUMP_SLOT bar2 0x0 // CHECK-NEXT: 0x4032DC R_386_JUMP_SLOT zed2 0x0 // CHECK-NEXT: } // 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: 4032cc 50224000 00000000 00000000 16124000 // GOTPLT-NEXT: 4032dc 26124000 dc114000 dd114000 // ^ ^-- (0x4011dd) // -- (0x4011dcd) /// Check that we have 2 PLT sections: one regular .plt section and one /// .iplt section for ifunc entries. // DISASM: Disassembly of section .text: // DISASM-EMPTY: // DISASM-NEXT: : // DISASM-NEXT: 4011dc: retl // DISASM: : // DISASM-NEXT: 4011dd: retl // DISASM: <_start>: // DISASM-NEXT: 4011de: calll 0x401230 // DISASM-NEXT: calll 0x401240 // DISASM-NEXT: calll 0x401210 // DISASM-NEXT: calll 0x401220 // DISASM-NEXT: movl -0x1004(%eax), %eax // DISASM-EMPTY: // DISASM-NEXT: Disassembly of section .plt: // DISASM-EMPTY: // DISASM-NEXT: <.plt>: // DISASM-NEXT: 401200: pushl 0x4032d0 // DISASM-NEXT: jmpl *0x4032d4 // DISASM-NEXT: nop // DISASM-NEXT: nop // DISASM-NEXT: nop // DISASM-NEXT: nop // DISASM-EMPTY: // DISASM-NEXT: : // DISASM-NEXT: 401210: jmpl *0x4032d8 // DISASM-NEXT: pushl $0x0 // DISASM-NEXT: jmp 0x401200 <.plt> // DISASM-EMPTY: // DISASM-NEXT: : // DISASM-NEXT: 401220: jmpl *0x4032dc // DISASM-NEXT: pushl $0x8 // DISASM-NEXT: jmp 0x401200 <.plt> // DISASM-EMPTY: // DISASM-NEXT: Disassembly of section .iplt: // DISASM-EMPTY: // DISASM-NEXT: <.iplt>: // DISASM-NEXT: jmpl *0x4032e0 // DISASM-NEXT: pushl $0x0 // DISASM-NEXT: jmp 0x401200 <.plt> // DISASM-NEXT: jmpl *0x4032e4 // DISASM-NEXT: pushl $0x8 // DISASM-NEXT: jmp 0x401200 <.plt> .text .type foo STT_GNU_IFUNC .globl foo foo: ret .type bar STT_GNU_IFUNC .globl bar bar: ret .globl _start _start: call foo@plt call bar@plt call bar2@plt call zed2@plt movl bar3@GOT(%eax), %eax