82 lines · plain
1# REQUIRES: ppc2# RUN: llvm-mc -filetype=obj -triple=powerpc %s -o %t.o3# RUN: echo '.globl f, g, h; f: g: h:' | llvm-mc -filetype=obj -triple=powerpc - -o %t1.o4# RUN: ld.lld -shared %t1.o -soname t1.so -o %t1.so5 6## Check we can create PLT entries for -fno-PIE executable.7# RUN: ld.lld %t.o %t1.so -o %t8# RUN: llvm-readobj -r -d %t | FileCheck --check-prefix=RELOC %s9# RUN: llvm-readelf -S %t | FileCheck --check-prefix=SEC %s10# RUN: llvm-readelf -x .plt %t | FileCheck --check-prefix=HEX %s11# RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck %s12 13# SEC: .got PROGBITS 100202b814# RELOC: PPC_GOT 0x100202B815 16# RELOC: .rela.plt {17# RELOC-NEXT: 0x100302C4 R_PPC_JMP_SLOT f 0x018# RELOC-NEXT: 0x100302C8 R_PPC_JMP_SLOT g 0x019# RELOC-NEXT: }20 21## .got2+0x8000-0x10004 = 0x30000+0x8000-0x10004 = 65536*2+3276422# CHECK-LABEL: <_start>:23# CHECK-NEXT: bl 0x100101d024# CHECK-NEXT: bl 0x100101d025# CHECK-NEXT: bl 0x100101e026# CHECK-NEXT: bl 0x100101e027# CHECK-EMPTY:28 29## -fno-PIC call stubs of f and g.30## .plt[0] = 0x100302c4 = 65536*4099+70831## .plt[1] = 0x100302c8 = 65536*4099+71232# CHECK-NEXT: <00000000.plt_call32.f>:33# CHECK-NEXT: lis 11, 409934# CHECK-NEXT: lwz 11, 708(11)35# CHECK-NEXT: mtctr 1136# CHECK-NEXT: bctr37# CHECK-EMPTY:38# CHECK-NEXT: <00000000.plt_call32.g>:39# CHECK-NEXT: lis 11, 409940# CHECK-NEXT: lwz 11, 712(11)41# CHECK-NEXT: mtctr 1142# CHECK-NEXT: bctr43# CHECK-EMPTY:44 45## In Secure PLT ABI, .plt stores function pointers to first instructions of .glink46# HEX: 0x100302c4 10010200 1001020447 48## These instructions are referenced by .plt entries.49# CHECK: 10010200 <.glink>:50# CHECK-NEXT: b 0x1001020851# CHECK-NEXT: b 0x1001020852 53## PLTresolve54## Operands of lis & lwz: .got+4 = 0x10020070+4 = 65536*4098+70055## Operands of addis & addi: -.glink = -0x10010200 = 65536*-4097-51256# CHECK-NEXT: lis 12, 409857# CHECK-NEXT: addis 11, 11, -409758# CHECK-NEXT: lwz 0, 700(12)59# CHECK-NEXT: addi 11, 11, -51260 61# CHECK-NEXT: mtctr 062# CHECK-NEXT: add 0, 11, 1163# CHECK-NEXT: lwz 12, 704(12)64# CHECK-NEXT: add 11, 0, 1165# CHECK-NEXT: bctr66 67## glibc crti.o references _GLOBAL_OFFSET_TABLE_.68.section .init69 bcl 20, 31, .+470.L:71 mflr 3072 addis 30, 30, _GLOBAL_OFFSET_TABLE_-.L@ha73 addi 30, 30, _GLOBAL_OFFSET_TABLE_-.L@l74 75.text76.globl _start77_start:78 bl f79 bl f80 bl g81 bl g82