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82 lines
2.3 KiB
ArmAsm
82 lines
2.3 KiB
ArmAsm
# REQUIRES: ppc
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# RUN: llvm-mc -filetype=obj -triple=powerpc %s -o %t.o
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# RUN: echo '.globl f, g, h; f: g: h:' | llvm-mc -filetype=obj -triple=powerpc - -o %t1.o
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# RUN: ld.lld -shared %t1.o -soname t1.so -o %t1.so
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## Check we can create PLT entries for -fno-PIE executable.
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# RUN: ld.lld %t.o %t1.so -o %t
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# RUN: llvm-readobj -r -d %t | FileCheck --check-prefix=RELOC %s
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# RUN: llvm-readelf -S %t | FileCheck --check-prefix=SEC %s
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# RUN: llvm-readelf -x .plt %t | FileCheck --check-prefix=HEX %s
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# RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck %s
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# SEC: .got PROGBITS 100202b8
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# RELOC: PPC_GOT 0x100202B8
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# RELOC: .rela.plt {
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# RELOC-NEXT: 0x100302C4 R_PPC_JMP_SLOT f 0x0
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# RELOC-NEXT: 0x100302C8 R_PPC_JMP_SLOT g 0x0
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# RELOC-NEXT: }
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## .got2+0x8000-0x10004 = 0x30000+0x8000-0x10004 = 65536*2+32764
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# CHECK-LABEL: <_start>:
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# CHECK-NEXT: bl 0x100101d0
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# CHECK-NEXT: bl 0x100101d0
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# CHECK-NEXT: bl 0x100101e0
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# CHECK-NEXT: bl 0x100101e0
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# CHECK-EMPTY:
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## -fno-PIC call stubs of f and g.
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## .plt[0] = 0x100302c4 = 65536*4099+708
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## .plt[1] = 0x100302c8 = 65536*4099+712
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# CHECK-NEXT: <00000000.plt_call32.f>:
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# CHECK-NEXT: lis 11, 4099
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# CHECK-NEXT: lwz 11, 708(11)
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# CHECK-NEXT: mtctr 11
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# CHECK-NEXT: bctr
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# CHECK-EMPTY:
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# CHECK-NEXT: <00000000.plt_call32.g>:
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# CHECK-NEXT: lis 11, 4099
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# CHECK-NEXT: lwz 11, 712(11)
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# CHECK-NEXT: mtctr 11
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# CHECK-NEXT: bctr
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# CHECK-EMPTY:
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## In Secure PLT ABI, .plt stores function pointers to first instructions of .glink
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# HEX: 0x100302c4 10010200 10010204
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## These instructions are referenced by .plt entries.
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# CHECK: 10010200 <.glink>:
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# CHECK-NEXT: b 0x10010208
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# CHECK-NEXT: b 0x10010208
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## PLTresolve
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## Operands of lis & lwz: .got+4 = 0x10020070+4 = 65536*4098+700
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## Operands of addis & addi: -.glink = -0x10010200 = 65536*-4097-512
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# CHECK-NEXT: lis 12, 4098
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# CHECK-NEXT: addis 11, 11, -4097
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# CHECK-NEXT: lwz 0, 700(12)
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# CHECK-NEXT: addi 11, 11, -512
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# CHECK-NEXT: mtctr 0
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# CHECK-NEXT: add 0, 11, 11
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# CHECK-NEXT: lwz 12, 704(12)
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# CHECK-NEXT: add 11, 0, 11
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# CHECK-NEXT: bctr
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## glibc crti.o references _GLOBAL_OFFSET_TABLE_.
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.section .init
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bcl 20, 31, .+4
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.L:
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mflr 30
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addis 30, 30, _GLOBAL_OFFSET_TABLE_-.L@ha
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addi 30, 30, _GLOBAL_OFFSET_TABLE_-.L@l
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.text
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.globl _start
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_start:
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bl f
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bl f
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bl g
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bl g
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