forked from OSchip/llvm-project
120 lines
3.9 KiB
ArmAsm
120 lines
3.9 KiB
ArmAsm
# REQUIRES: ppc
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# RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %s -o %t.o
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# RUN: ld.lld %t.o -o %t
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# RUN: llvm-readelf -s %t | FileCheck --check-prefix=SYM %s
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# RUN: llvm-readelf -S %t | FileCheck --check-prefix=SECTIONS %s
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# RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck %s
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# RUN: llvm-readobj -r %t | FileCheck --check-prefix=REL %s
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# RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %s -o %t.o
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# RUN: ld.lld %t.o -o %t
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# RUN: llvm-readelf -s %t | FileCheck --check-prefix=SYM %s
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# RUN: llvm-readelf -S %t | FileCheck --check-prefix=SECTIONS %s
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# RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck %s
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# RUN: llvm-readobj -r %t | FileCheck --check-prefix=REL %s
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# SYM: Value Size Type Bind Vis Ndx
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# SYM: 0000000010028298 0 NOTYPE LOCAL HIDDEN 4 .TOC.
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# SYM: 0000000010010288 0 FUNC GLOBAL DEFAULT 3 ifunc1
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# SYM: 0000000010010210 0 IFUNC GLOBAL DEFAULT 2 ifunc2
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# SYM: 0000000010010278 0 FUNC GLOBAL DEFAULT 3 ifunc3
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# SECTIONS: .plt NOBITS 00000000100302a0 0002a0 000018 00 WA 0 0 8
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# __plt_ifunc - . = 0x10010218 - 0x10010208 = 16
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# __plt_ifunc2 - . = 0x1001022c - 0x10010210 = 28
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# CHECK: <_start>:
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# CHECK-NEXT: addis 2, 12, 2
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# CHECK-NEXT: addi 2, 2, -32636
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# CHECK-NEXT: 1001021c: bl 0x10010240
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# CHECK-NEXT: ld 2, 24(1)
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# CHECK-NEXT: 10010224: bl 0x10010254
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# CHECK-NEXT: ld 2, 24(1)
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# CHECK-NEXT: addis 3, 2, -2
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# CHECK-NEXT: addi 3, 3, 32752
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# CHECK-NEXT: addis 3, 2, -2
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# CHECK-NEXT: addi 3, 3, 32736
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# .plt[0] - .TOC. = 0x100302a0 - 0x10028298 = (1<<16) - 32760
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# CHECK: <__plt_ifunc2>:
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# CHECK-NEXT: std 2, 24(1)
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# CHECK-NEXT: addis 12, 2, 1
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# CHECK-NEXT: ld 12, -32760(12)
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# CHECK-NEXT: mtctr 12
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# CHECK-NEXT: bctr
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# .plt[1] - .TOC. = 0x100302a0+8 - 0x10028298 = (1<<16) - 32752
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# CHECK: <__plt_ifunc3>:
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# CHECK-NEXT: std 2, 24(1)
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# CHECK-NEXT: addis 12, 2, 1
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# CHECK-NEXT: ld 12, -32752(12)
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# CHECK-NEXT: mtctr 12
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# CHECK-NEXT: bctr
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# CHECK-EMPTY:
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## .glink has 3 IPLT entries for ifunc1, ifunc2 and ifunc3.
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## ifunc2 and ifunc3 have the same code sequence as their PLT call stubs.
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# CHECK: Disassembly of section .glink:
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# CHECK-EMPTY:
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# CHECK-NEXT: 0000000010010268 <.glink>:
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# CHECK-NEXT: addis 12, 2, 1
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# CHECK-NEXT: ld 12, -32760(12)
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# CHECK-NEXT: mtctr 12
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# CHECK-NEXT: bctr
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# CHECK-EMPTY:
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# CHECK-NEXT: 0000000010010278 <ifunc3>:
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# CHECK-NEXT: addis 12, 2, 1
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# CHECK-NEXT: ld 12, -32752(12)
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# CHECK-NEXT: mtctr 12
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# CHECK-NEXT: bctr
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# CHECK-EMPTY:
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# CHECK-NEXT: 0000000010010288 <ifunc1>:
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# CHECK-NEXT: addis 12, 2, 1
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# CHECK-NEXT: ld 12, -32744(12)
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# CHECK-NEXT: mtctr 12
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# CHECK-NEXT: bctr
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## Check that we emit 3 R_PPC64_IRELATIVE in .rela.dyn.
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# REL: .rela.dyn {
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# REL-NEXT: 0x100302A0 R_PPC64_IRELATIVE - 0x10010210
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# REL-NEXT: 0x100302A8 R_PPC64_IRELATIVE - 0x10010210
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# REL-NEXT: 0x100302B0 R_PPC64_IRELATIVE - 0x10010210
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# REL-NEXT: }
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.type ifunc1,@gnu_indirect_function
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.type ifunc2,@gnu_indirect_function
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.type ifunc3,@gnu_indirect_function
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.globl ifunc1, ifunc2, ifunc3
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ifunc1:
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ifunc2:
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ifunc3:
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blr
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.global _start
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.type _start,@function
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_start:
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.Lfunc_gep0:
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addis 2, 12, .TOC.-.Lfunc_gep0@ha
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addi 2, 2, .TOC.-.Lfunc_gep0@l
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.Lfunc_lep0:
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.localentry _start, .Lfunc_lep0-.Lfunc_gep0
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## ifunc1 is taken address.
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## ifunc2 is called.
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## ifunc3 is both taken address and called.
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## We need to create IPLT entries in .glink for ifunc1 and ifunc3, change
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## their types from STT_GNU_IFUNC to STT_FUNC, and set their st_shndx/st_value
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## to their .glink entries. Technically we don't need an entry for ifunc2 in
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## .glink, but we currently do that.
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bl ifunc2
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nop
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bl ifunc3
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nop
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addis 3, 2, ifunc1@toc@ha
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addi 3, 3, ifunc1@toc@l
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addis 3, 2, ifunc3@toc@ha
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addi 3, 3, ifunc3@toc@l
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