forked from OSchip/llvm-project
82 lines
2.2 KiB
ArmAsm
82 lines
2.2 KiB
ArmAsm
# 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
|
|
|
|
# RELOC: .rela.plt {
|
|
# RELOC-NEXT: 0x10030000 R_PPC_JMP_SLOT f 0x0
|
|
# RELOC-NEXT: 0x10030004 R_PPC_JMP_SLOT g 0x0
|
|
# RELOC-NEXT: }
|
|
|
|
# SEC: .got PROGBITS 10020070
|
|
# RELOC: PPC_GOT 0x10020070
|
|
|
|
## .got2+0x8000-0x10004 = 0x30000+0x8000-0x10004 = 65536*2+32764
|
|
# CHECK-LABEL: _start:
|
|
# CHECK-NEXT: bl .+16
|
|
# CHECK-NEXT: bl .+12
|
|
# CHECK-NEXT: bl .+24
|
|
# CHECK-NEXT: bl .+20
|
|
# CHECK-EMPTY:
|
|
|
|
## -fno-PIC call stubs of f and g.
|
|
## .plt[0] = 0x10030000 = 65536*4099+0
|
|
## .plt[1] = 0x10030004 = 65536*4099+4
|
|
# CHECK-NEXT: 00000000.plt_call32.f:
|
|
# CHECK-NEXT: lis 11, 4099
|
|
# CHECK-NEXT: lwz 11, 0(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, 4(11)
|
|
# CHECK-NEXT: mtctr 11
|
|
# CHECK-NEXT: bctr
|
|
# CHECK-EMPTY:
|
|
|
|
## In Secure PLT ABI, .plt stores function pointers to first instructions of .glink
|
|
# HEX: 0x10030000 10010040 10010044
|
|
|
|
## These instructions are referenced by .plt entries.
|
|
# CHECK: 10010040 .glink:
|
|
# CHECK-NEXT: b .+8
|
|
# CHECK-NEXT: b .+4
|
|
|
|
## PLTresolve
|
|
## Operands of lis & lwz: .got+4 = 0x10020070+4 = 65536*4098+116
|
|
## Operands of addis & addi: -.glink = -0x10010040 = 65536*-4097-48
|
|
# CHECK-NEXT: lis 12, 4098
|
|
# CHECK-NEXT: addis 11, 11, -4097
|
|
# CHECK-NEXT: lwz 0, 116(12)
|
|
# CHECK-NEXT: addi 11, 11, -64
|
|
|
|
# CHECK-NEXT: mtctr 0
|
|
# CHECK-NEXT: add 0, 11, 11
|
|
# CHECK-NEXT: lwz 12, 120(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
|