| # REQUIRES: ppc |
| |
| ## Test that we create canonical PLT entries for -no-pie. |
| |
| # RUN: llvm-mc -filetype=obj -triple=powerpc %s -o %t.o |
| # RUN: llvm-mc -filetype=obj -triple=powerpc %p/Inputs/canonical-plt-pcrel.s -o %t1.o |
| # RUN: ld.lld %t1.o -o %t1.so -shared -soname=so |
| |
| # RUN: ld.lld %t.o %t1.so -o %t |
| # RUN: llvm-readobj -r %t | FileCheck --check-prefix=REL %s |
| # RUN: llvm-readelf -S -s %t | FileCheck --check-prefix=SYM %s |
| # RUN: llvm-readelf -x .plt %t | FileCheck --check-prefix=HEX %s |
| # RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck %s |
| |
| # REL: Relocations [ |
| # REL-NEXT: .rela.plt { |
| # REL-NEXT: 0x10030318 R_PPC_JMP_SLOT func 0x0 |
| # REL-NEXT: 0x1003031C R_PPC_JMP_SLOT func2 0x0 |
| # REL-NEXT: 0x10030320 R_PPC_JMP_SLOT ifunc 0x0 |
| # REL-NEXT: } |
| # REL-NEXT: ] |
| |
| # SYM: .glink PROGBITS 1001022c |
| |
| ## st_value points to the canonical PLT entry in .glink |
| # SYM: Symbol table '.dynsym' |
| # SYM: 1001023c 0 FUNC GLOBAL DEFAULT UND func |
| # SYM: 1001022c 0 FUNC GLOBAL DEFAULT UND func2 |
| # SYM: 1001024c 0 FUNC GLOBAL DEFAULT UND ifunc |
| # SYM: Symbol table '.symtab' |
| # SYM: 1001023c 0 FUNC GLOBAL DEFAULT UND func |
| # SYM: 1001022c 0 FUNC GLOBAL DEFAULT UND func2 |
| # SYM: 1001024c 0 FUNC GLOBAL DEFAULT UND ifunc |
| |
| # HEX: 0x10030318 1001025c 10010260 10010264 |
| |
| ## Canonical PLT entry of func2. |
| ## 0x1003031C = 65536*4099+796 |
| # CHECK: 1001022c <.glink>: |
| # CHECK-NEXT: lis 11, 4099 |
| # CHECK-NEXT: lwz 11, 796(11) |
| # CHECK-NEXT: mtctr 11 |
| # CHECK-NEXT: bctr |
| |
| ## Canonical PLT entry of func. |
| ## 0x10030318 = 65536*4099+792 |
| # CHECK-NEXT: 1001023c: lis 11, 4099 |
| # CHECK-NEXT: lwz 11, 792(11) |
| # CHECK-NEXT: mtctr 11 |
| # CHECK-NEXT: bctr |
| |
| ## Canonical PLT entry of ifunc. |
| ## 0x10030320 = 65536*4099+800 |
| # CHECK-NEXT: 1001024c: lis 11, 4099 |
| # CHECK-NEXT: lwz 11, 800(11) |
| # CHECK-NEXT: mtctr 11 |
| # CHECK-NEXT: bctr |
| |
| ## The 3 b instructions are referenced by .plt entries. |
| # CHECK-NEXT: 1001025c: b 0x10010268 |
| # CHECK-NEXT: b 0x10010268 |
| # CHECK-NEXT: b 0x10010268 |
| |
| ## PLTresolve of 64 bytes is at the end. |
| ## Operands of addis & addi: -0x1001025c = 65536*-4097-604 |
| # CHECK-NEXT: lis 12, 0 |
| # CHECK-NEXT: addis 11, 11, -4097 |
| # CHECK-NEXT: lwz 0, 4(12) |
| # CHECK-NEXT: addi 11, 11, -604 |
| # CHECK-NEXT: mtctr 0 |
| # CHECK-NEXT: add 0, 11, 11 |
| # CHECK-NEXT: lwz 12, 8(12) |
| # CHECK-NEXT: add 11, 0, 11 |
| # CHECK-NEXT: bctr |
| # CHECK-COUNT-7: nop |
| |
| .globl _start |
| _start: |
| b func |
| lis 3, func2@ha |
| la 3, func2@l(3) |
| lis 3, func@ha |
| la 3, func@l(3) |
| lis 4, ifunc@ha |
| la 4, ifunc@l(4) |