# REQUIRES: riscv # RUN: llvm-mc -filetype=obj -triple=riscv32 %s -mattr=+relax -o %t.32.o # DEFINE: %{layout} = --section-start .rela.dyn=0x1000 -Ttext=0x2000 --section-start=.iplt=0x3000 # RUN: ld.lld -pie %{layout} %t.32.o -o %t.32 # RUN: ld.lld -pie %{layout} %t.32.o -o %t.32-apply --apply-dynamic-relocs # RUN: llvm-readobj -r -x .got.plt %t.32 | FileCheck --check-prefixes=RELOC32,NO-APPLY-RELOC32 %s # RUN: llvm-readobj -r -x .got.plt %t.32-apply | FileCheck --check-prefixes=RELOC32,APPLY-RELOC32 %s # RUN: llvm-readelf -s %t.32 | FileCheck --check-prefix=SYM32 %s # RUN: llvm-objdump -d --no-show-raw-insn %t.32 | FileCheck --check-prefix=DIS32 %s # RUN: llvm-mc -filetype=obj -triple=riscv64 %s -mattr=+relax -o %t.64.o # RUN: ld.lld -pie %{layout} %t.64.o -o %t.64 # RUN: ld.lld -pie %{layout} %t.64.o -o %t.64-apply --apply-dynamic-relocs # RUN: llvm-readobj -r -x .got.plt %t.64 | FileCheck --check-prefixes=RELOC64,NO-APPLY-RELOC64 %s # RUN: llvm-readobj -r -x .got.plt %t.64-apply | FileCheck --check-prefixes=RELOC64,APPLY-RELOC64 %s # RUN: llvm-readelf -s %t.64 | FileCheck --check-prefix=SYM64 %s # RUN: llvm-objdump -d --no-show-raw-insn %t.64 | FileCheck --check-prefix=DIS64 %s ## ifunc0 has a direct relocation, so it gets canonicalized to the IPLT entry. ## ifunc1 has only a GOT relocation, so its symbol remains in the original section. ## ifunc2 has both direct and GOT relocations, so it gets canonicalized to the IPLT entry. ## All IRELATIVE addends must be correctly adjusted after relaxation. # RELOC32: .rela.dyn { # RELOC32-NEXT: 0x50D8 R_RISCV_RELATIVE - 0x3020 # RELOC32-NEXT: 0x60DC R_RISCV_IRELATIVE - 0x2028 # RELOC32-NEXT: 0x60E0 R_RISCV_IRELATIVE - 0x202C # RELOC32-NEXT: 0x60E4 R_RISCV_IRELATIVE - 0x2030 # RELOC32-NEXT: } # RELOC32-LABEL: Hex dump of section '.got.plt': # NO-APPLY-RELOC32: 0x000060dc 00000000 00000000 00000000 # APPLY-RELOC32: 0x000060dc 28200000 2c200000 30200000 # SYM32: {{0*}}3000 0 FUNC GLOBAL DEFAULT {{.*}} ifunc0 # SYM32-NEXT: {{0*}}202c 0 IFUNC GLOBAL DEFAULT {{.*}} ifunc1 # SYM32-NEXT: {{0*}}3020 0 FUNC GLOBAL DEFAULT {{.*}} ifunc2 # DIS32: <_start>: # DIS32-NEXT: 2000: jal 0x2024 # DIS32: <.L0>: # DIS32-NEXT: 2004: auipc a0, 0x1 # DIS32-NEXT: addi a0, a0, -0x4 # DIS32: <.L1>: # DIS32-NEXT: 200c: auipc a1, 0x4 # DIS32-NEXT: addi a1, a1, 0xd4 # DIS32: <.L2>: # DIS32-NEXT: 2014: auipc a2, 0x1 # DIS32-NEXT: addi a2, a2, 0xc # DIS32: <.L3>: # DIS32-NEXT: 201c: auipc a3, 0x3 # DIS32-NEXT: addi a3, a3, 0xbc # DIS32: Disassembly of section .iplt: # DIS32: : ## 32-bit: &.got.plt[ifunc0]-. = 0x60dc-0x3000 = 4096*3+0xdc # DIS32-NEXT: 3000: auipc t3, 0x3 # DIS32-NEXT: lw t3, 0xdc(t3) # RELOC64: .rela.dyn { # RELOC64-NEXT: 0x5150 R_RISCV_RELATIVE - 0x3020 # RELOC64-NEXT: 0x6158 R_RISCV_IRELATIVE - 0x2028 # RELOC64-NEXT: 0x6160 R_RISCV_IRELATIVE - 0x202C # RELOC64-NEXT: 0x6168 R_RISCV_IRELATIVE - 0x2030 # RELOC64-NEXT: } # RELOC64-LABEL: Hex dump of section '.got.plt': # NO-APPLY-RELOC64: 0x00006158 00000000 00000000 00000000 00000000 # APPLY-RELOC64: 0x00006158 28200000 00000000 2c200000 00000000 # SYM64: {{0*}}3000 0 FUNC GLOBAL DEFAULT {{.*}} ifunc0 # SYM64-NEXT: {{0*}}202c 0 IFUNC GLOBAL DEFAULT {{.*}} ifunc1 # SYM64-NEXT: {{0*}}3020 0 FUNC GLOBAL DEFAULT {{.*}} ifunc2 # DIS64: <_start>: # DIS64-NEXT: 2000: jal 0x2024 # DIS64: <.L0>: # DIS64-NEXT: 2004: auipc a0, 0x1 # DIS64-NEXT: addi a0, a0, -0x4 # DIS64: <.L1>: # DIS64-NEXT: 200c: auipc a1, 0x4 # DIS64-NEXT: addi a1, a1, 0x154 # DIS64: <.L2>: # DIS64-NEXT: 2014: auipc a2, 0x1 # DIS64-NEXT: addi a2, a2, 0xc # DIS64: <.L3>: # DIS64-NEXT: 201c: auipc a3, 0x3 # DIS64-NEXT: addi a3, a3, 0x134 # DIS64: Disassembly of section .iplt: # DIS64: : ## 64-bit: &.got.plt[ifunc0]-. = 0x6158-0x3000 = 4096*3+0x158 # DIS64-NEXT: 3000: auipc t3, 0x3 # DIS64-NEXT: ld t3, 0x158(t3) .text .globl _start _start: call func .L0: auipc a0, %pcrel_hi(ifunc0) addi a0, a0, %pcrel_lo(.L0) .L1: auipc a1, %got_pcrel_hi(ifunc1) addi a1, a1, %pcrel_lo(.L1) .L2: auipc a2, %pcrel_hi(ifunc2) addi a2, a2, %pcrel_lo(.L2) .L3: auipc a3, %got_pcrel_hi(ifunc2) addi a3, a3, %pcrel_lo(.L3) .globl func func: ret ## Resolvers are after relaxed code, so their addresses shift due to relaxation. ## The IRELATIVE addends must be adjusted accordingly. .globl ifunc0, ifunc1, ifunc2 .type ifunc0, @gnu_indirect_function .type ifunc1, @gnu_indirect_function .type ifunc2, @gnu_indirect_function ifunc0: ret ifunc1: ret ifunc2: ret