123 lines
3.8 KiB
ArmAsm
123 lines
3.8 KiB
ArmAsm
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# REQUIRES: x86
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## Test R_X86_64_GOTPCRELX and R_X86_64_REX_GOTPCRELX GOT optimization.
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# RUN: llvm-mc -filetype=obj -relax-relocations -triple=x86_64-unknown-linux %s -o %t.o
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# RUN: ld.lld %t.o -o %t1 --no-apply-dynamic-relocs
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# RUN: llvm-readelf -S -r -x .got.plt %t1 | FileCheck --check-prefixes=CHECK,NOAPPLY %s
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# RUN: ld.lld %t.o -o %t1 --apply-dynamic-relocs
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# RUN: llvm-readelf -S -r -x .got.plt %t1 | FileCheck --check-prefixes=CHECK,APPLY %s
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# RUN: ld.lld %t.o -o %t1
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# RUN: llvm-objdump --no-print-imm-hex -d %t1 | FileCheck --check-prefix=DISASM %s
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## --no-relax disables GOT optimization.
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# RUN: ld.lld --no-relax %t.o -o %t2
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# RUN: llvm-objdump --no-print-imm-hex -d %t2 | FileCheck --check-prefix=NORELAX %s
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## In our implementation, .got is retained even if all GOT-generating relocations are optimized.
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# CHECK: Name Type Address Off Size ES Flg Lk Inf Al
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# CHECK: .iplt PROGBITS 0000000000201280 000280 000010 00 AX 0 0 16
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# CHECK-NEXT: .got PROGBITS 0000000000202290 000290 000000 00 WA 0 0 8
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## There is one R_X86_64_IRELATIVE relocations.
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# RELOC-LABEL: Relocation section '.rela.dyn' at offset {{.*}} contains 1 entry:
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# CHECK: Offset Info Type Symbol's Value Symbol's Name + Addend
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# CHECK: 0000000000203290 0000000000000025 R_X86_64_IRELATIVE 2011e2
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# CHECK-LABEL: Hex dump of section '.got.plt':
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# NOAPPLY-NEXT: 0x00203290 00000000 00000000
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# APPLY-NEXT: 0x00203290 e2112000 00000000
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# 0x201173 + 7 - 10 = 0x201170
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# 0x20117a + 7 - 17 = 0x201170
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# 0x201181 + 7 - 23 = 0x201171
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# 0x201188 + 7 - 30 = 0x201171
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# DISASM: Disassembly of section .text:
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# DISASM-EMPTY:
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# DISASM-NEXT: <foo>:
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# DISASM-NEXT: 2011e0: 90 nop
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# DISASM: <hid>:
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# DISASM-NEXT: 2011e1: 90 nop
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# DISASM: <ifunc>:
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# DISASM-NEXT: 2011e2: c3 retq
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# DISASM: <_start>:
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# DISASM-NEXT: leaq -10(%rip), %rax
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# DISASM-NEXT: leaq -17(%rip), %rax
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# DISASM-NEXT: leaq -23(%rip), %rax
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# DISASM-NEXT: leaq -30(%rip), %rax
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# DISASM-NEXT: movq 8330(%rip), %rax
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# DISASM-NEXT: movq 8323(%rip), %rax
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# DISASM-NEXT: leaq -52(%rip), %rax
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# DISASM-NEXT: leaq -59(%rip), %rax
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# DISASM-NEXT: leaq -65(%rip), %rax
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# DISASM-NEXT: leaq -72(%rip), %rax
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# DISASM-NEXT: movq 8288(%rip), %rax
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# DISASM-NEXT: movq 8281(%rip), %rax
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# DISASM-NEXT: callq 0x2011e0 <foo>
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# DISASM-NEXT: callq 0x2011e0 <foo>
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# DISASM-NEXT: callq 0x2011e1 <hid>
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# DISASM-NEXT: callq 0x2011e1 <hid>
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# DISASM-NEXT: callq *8251(%rip)
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# DISASM-NEXT: callq *8245(%rip)
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# DISASM-NEXT: jmp 0x2011e0 <foo>
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# DISASM-NEXT: nop
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# DISASM-NEXT: jmp 0x2011e0 <foo>
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# DISASM-NEXT: nop
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# DISASM-NEXT: jmp 0x2011e1 <hid>
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# DISASM-NEXT: nop
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# DISASM-NEXT: jmp 0x2011e1 <hid>
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# DISASM-NEXT: nop
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# DISASM-NEXT: jmpq *8215(%rip)
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# DISASM-NEXT: jmpq *8209(%rip)
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# NORELAX-LABEL: <_start>:
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# NORELAX-COUNT-12: movq
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# NORELAX-COUNT-6: callq *
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# NORELAX-COUNT-6: jmpq *
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.text
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.globl foo
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.type foo, @function
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foo:
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nop
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.globl hid
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.hidden hid
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.type hid, @function
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hid:
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nop
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.text
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.type ifunc STT_GNU_IFUNC
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.globl ifunc
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.type ifunc, @function
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ifunc:
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ret
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.globl _start
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.type _start, @function
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_start:
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movq foo@GOTPCREL(%rip), %rax
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movq foo@GOTPCREL(%rip), %rax
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movq hid@GOTPCREL(%rip), %rax
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movq hid@GOTPCREL(%rip), %rax
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movq ifunc@GOTPCREL(%rip), %rax
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movq ifunc@GOTPCREL(%rip), %rax
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movq foo@GOTPCREL(%rip), %rax
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movq foo@GOTPCREL(%rip), %rax
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movq hid@GOTPCREL(%rip), %rax
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movq hid@GOTPCREL(%rip), %rax
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movq ifunc@GOTPCREL(%rip), %rax
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movq ifunc@GOTPCREL(%rip), %rax
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call *foo@GOTPCREL(%rip)
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call *foo@GOTPCREL(%rip)
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call *hid@GOTPCREL(%rip)
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call *hid@GOTPCREL(%rip)
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call *ifunc@GOTPCREL(%rip)
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call *ifunc@GOTPCREL(%rip)
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jmp *foo@GOTPCREL(%rip)
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jmp *foo@GOTPCREL(%rip)
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jmp *hid@GOTPCREL(%rip)
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jmp *hid@GOTPCREL(%rip)
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jmp *ifunc@GOTPCREL(%rip)
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jmp *ifunc@GOTPCREL(%rip)
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