derek.holloway
7502bf64a4
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78 lines
2.6 KiB
ArmAsm
78 lines
2.6 KiB
ArmAsm
// REQUIRES: x86
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/// Test -z ifunc-noplt.
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// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-freebsd %S/Inputs/shared2-x86-64.s -o %t1.o
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// RUN: ld.lld %t1.o --shared -soname=so -o %t.so
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// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-freebsd %s -o %t.o
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/// The default -z text is not compatible with -z ifunc-noplt.
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// RUN: not ld.lld -z ifunc-noplt %t.o -o /dev/null 2>&1| FileCheck --check-prefix=INCOMPATIBLE %s
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// RUN: not ld.lld -z ifunc-noplt -z text %t.o -o /dev/null 2>&1| FileCheck --check-prefix=INCOMPATIBLE %s
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// INCOMPATIBLE: -z text and -z ifunc-noplt may not be used together
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// RUN: ld.lld -z ifunc-noplt -z notext --hash-style=sysv %t.so %t.o -o %tout
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// RUN: llvm-objdump --no-print-imm-hex -d --no-show-raw-insn %tout | FileCheck %s --check-prefix=DISASM
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// RUN: llvm-readobj -r --dynamic-table %tout | FileCheck %s
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// Check that we emitted relocations for the ifunc calls
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// CHECK: Relocations [
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// CHECK-NEXT: Section (4) .rela.dyn {
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// CHECK-NEXT: 0x201323 R_X86_64_PLT32 foo 0xFFFFFFFFFFFFFFFC
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// CHECK-NEXT: 0x201328 R_X86_64_PLT32 bar 0xFFFFFFFFFFFFFFFC
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// CHECK-NEXT: }
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// CHECK-NEXT: Section (5) .rela.plt {
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// CHECK-NEXT: 0x203498 R_X86_64_JUMP_SLOT bar2 0x0
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// CHECK-NEXT: 0x2034A0 R_X86_64_JUMP_SLOT zed2 0x0
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// CHECK-NEXT: }
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// Check that ifunc call sites still require relocation
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// DISASM: Disassembly of section .text:
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// DISASM-EMPTY:
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// DISASM-NEXT: 0000000000201320 <foo>:
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// DISASM-NEXT: 201320: retq
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// DISASM-EMPTY:
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// DISASM-NEXT: 0000000000201321 <bar>:
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// DISASM-NEXT: 201321: retq
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// DISASM-EMPTY:
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// DISASM-NEXT: 0000000000201322 <_start>:
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// DISASM-NEXT: 201322: callq 0x201327 <_start+0x5>
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// DISASM-NEXT: 201327: callq 0x20132c <_start+0xa>
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// DISASM-NEXT: 20132c: callq 0x201350 <bar2@plt>
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// DISASM-NEXT: 201331: callq 0x201360 <zed2@plt>
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// DISASM-EMPTY:
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// DISASM-NEXT: Disassembly of section .plt:
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// DISASM-EMPTY:
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// DISASM-NEXT: 0000000000201340 <.plt>:
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// DISASM-NEXT: 201340: pushq 8514(%rip)
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// DISASM-NEXT: 201346: jmpq *8516(%rip)
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// DISASM-NEXT: 20134c: nopl (%rax)
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// DISASM-EMPTY:
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// DISASM-NEXT: 0000000000201350 <bar2@plt>:
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// DISASM-NEXT: 201350: jmpq *8514(%rip)
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// DISASM-NEXT: 201356: pushq $0
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// DISASM-NEXT: 20135b: jmp 0x201340 <.plt>
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// DISASM-EMPTY:
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// DISASM-NEXT: 0000000000201360 <zed2@plt>:
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// DISASM-NEXT: 201360: jmpq *8506(%rip)
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// DISASM-NEXT: 201366: pushq $1
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// DISASM-NEXT: 20136b: jmp 0x201340 <.plt>
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.text
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.type foo STT_GNU_IFUNC
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.globl foo
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foo:
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ret
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.type bar STT_GNU_IFUNC
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.globl bar
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bar:
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ret
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.globl _start
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_start:
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call foo
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call bar
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call bar2
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call zed2
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