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