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93c16e75b8
The unstable partition in partitionRels might reverse IRELATIVE relocations, so stable_partition in computeRels would lead to IRELATIVE relocations ordered by decreasing offset. Use stable_partition in partitionRels to get IRELATIVE relocations ordered by increasing offset.
93 lines
2.9 KiB
ArmAsm
93 lines
2.9 KiB
ArmAsm
# REQUIRES: x86
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# RUN: rm -rf %t && split-file %s %t && cd %t
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# RUN: llvm-mc -filetype=obj -triple=x86_64 a.s -o a.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64 b.s -o b.o
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# RUN: ld.lld -shared -soname=b.so b.o -o b.so
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# RUN: ld.lld a.o -o a
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# RUN: llvm-objdump --no-print-imm-hex -d --no-show-raw-insn a | FileCheck %s --check-prefix=DISASM
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# RUN: llvm-readelf -r -s a | FileCheck %s
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# CHECK: Relocation section '.rela.dyn' at offset {{.*}} contains 3 entries:
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# CHECK-NEXT: Type
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# CHECK-NEXT: {{0*}}[[#%x,O:]] [[#%x,]] R_X86_64_IRELATIVE [[#%x,QUX:]]
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# CHECK-NEXT: {{0*}}[[#O+8]] [[#%x,]] R_X86_64_IRELATIVE
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# CHECK-NEXT: {{0*}}[[#O+16]] [[#%x,]] R_X86_64_IRELATIVE
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# CHECK: 0 NOTYPE LOCAL HIDDEN [[#]] __rela_iplt_start
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# CHECK-NEXT: 0 NOTYPE LOCAL HIDDEN [[#]] __rela_iplt_end
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# CHECK-NEXT: {{0*}}[[#QUX]] 0 IFUNC GLOBAL DEFAULT [[#]] qux
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# RUN: ld.lld -pie a.o b.so -o a1
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# RUN: llvm-readelf -rs a1 | FileCheck %s --check-prefixes=PIC,PIE
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# RUN: ld.lld -shared a.o b.so -o a2
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# RUN: llvm-readelf -rs a2 | FileCheck %s --check-prefix=PIC
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# PIC: {{0*}}[[#%x,O:]] [[#%x,]] R_X86_64_RELATIVE
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# PIC-NEXT: R_X86_64_GLOB_DAT 0000000000000000 ext + 0
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# PIC-NEXT: {{0*}}[[#O-16]] [[#%x,]] R_X86_64_64 0000000000000000 __rela_iplt_start + 0
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# PIC-NEXT: {{0*}}[[#O-8]] [[#%x,]] R_X86_64_64 0000000000000000 __rela_iplt_end + 0
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# PIE-NEXT: {{0*}}[[#O+8]] [[#%x,]] R_X86_64_IRELATIVE
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# PIE-NEXT: {{0*}}[[#O+16]] [[#%x,]] R_X86_64_IRELATIVE
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# PIE-NEXT: {{0*}}[[#O+24]] [[#%x,]] R_X86_64_IRELATIVE
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# PIC: 0 NOTYPE WEAK DEFAULT UND __rela_iplt_start
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# PIC-NEXT: 0 NOTYPE WEAK DEFAULT UND __rela_iplt_end
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# DISASM: Disassembly of section .text:
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# DISASM-EMPTY:
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# DISASM-NEXT: <qux>:
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# DISASM: <foo>:
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# DISASM: <bar>:
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# DISASM: <unused>:
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# DISASM: <_start>:
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# DISASM-NEXT: callq 0x[[#%x,foo:]]
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# DISASM-NEXT: callq 0x[[#%x,bar:]]
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# DISASM-NEXT: callq 0x[[#%x,qux:]]
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# DISASM-EMPTY:
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# DISASM-NEXT: Disassembly of section .iplt:
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# DISASM-EMPTY:
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# DISASM-NEXT: <.iplt>:
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# DISASM-NEXT: [[#qux]]: jmpq *{{.*}}(%rip)
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# DISASM-NEXT: pushq $0
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# DISASM-NEXT: jmp 0x0
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# DISASM-NEXT: [[#foo]]: jmpq *{{.*}}(%rip)
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# DISASM-NEXT: pushq $1
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# DISASM-NEXT: jmp 0x0
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# DISASM-NEXT: [[#bar]]: jmpq *{{.*}}(%rip)
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# DISASM-NEXT: pushq $2
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# DISASM-NEXT: jmp 0x0
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#--- a.s
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.globl qux, foo, bar
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.type qux, @gnu_indirect_function
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.type foo STT_GNU_IFUNC
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.type bar STT_GNU_IFUNC
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qux: ret
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foo: ret
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bar: ret
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.type unused, @gnu_indirect_function
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.globl unused
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.weak ext
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unused: mov ext@gotpcrel(%rip), %rax
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.weak __rela_iplt_start
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.weak __rela_iplt_end
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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 qux
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.data
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.quad __rela_iplt_start
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.quad __rela_iplt_end
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.quad .data
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#--- b.s
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.globl ext
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ext:
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ret
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