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