345f59667d
GNU ld creates the synthetic section .iplt, and has a built-in linker
script that assigns .iplt to the output section .plt . There is no
output section named .iplt .
Making .iplt an output section actually has a benefit that makes the
tricky toolchain feature stand out. Symbolizers don't have to deal with
mixed PLT entries (e.g. llvm-objdump -d incorrectly annotates such jump
targets).
On EM_PPC{,64}, .glink contains a PLT resolver and a series of jump
instructions. The 4-byte entry size makes it unnecessary to have an
alignment of 16.
Mark ppc32-gnu-ifunc.s and ppc32-gnu-ifunc-nonpreemptable.s as `XFAIL: *`.
They test IPLT on EM_PPC, which never works.
Reviewed By: peter.smith
Differential Revision: https://reviews.llvm.org/D71520
84 lines
3.3 KiB
ArmAsm
84 lines
3.3 KiB
ArmAsm
// REQUIRES: x86
|
|
// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
|
|
// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/gnu-ifunc-canon-ro-pcrel.s -o %t-ro-pcrel.o
|
|
// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/gnu-ifunc-canon-ro-abs.s -o %t-ro-abs.o
|
|
// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/gnu-ifunc-canon-rw-addend.s -o %t-rw-addend.o
|
|
// RUN: ld.lld %t.o -o %t1
|
|
// RUN: llvm-readobj -r %t1 | FileCheck --check-prefix=IREL1 %s
|
|
// RUN: ld.lld %t.o %t-ro-pcrel.o -o %t2
|
|
// RUN: llvm-readobj -r %t2 | FileCheck --check-prefix=IREL1 %s
|
|
// RUN: ld.lld %t.o %t-ro-abs.o -o %t3
|
|
// RUN: llvm-readobj -r %t3 | FileCheck --check-prefix=IREL1 %s
|
|
// RUN: ld.lld %t.o %t-rw-addend.o -o %t4
|
|
// RUN: llvm-readobj -r %t4 | FileCheck --check-prefix=IREL1 %s
|
|
// RUN: llvm-objdump -s %t4 | FileCheck --check-prefix=DUMP %s
|
|
// RUN: ld.lld %t.o %t-rw-addend.o -o %t4a -z retpolineplt
|
|
// RUN: llvm-readobj -r %t4a | FileCheck --check-prefix=IREL1 %s
|
|
// RUN: llvm-objdump -s %t4a | FileCheck --check-prefix=DUMP2 %s
|
|
// RUN: ld.lld %t-ro-pcrel.o %t.o -o %t5
|
|
// RUN: llvm-readobj -r %t5 | FileCheck --check-prefix=IREL1 %s
|
|
// RUN: ld.lld %t-ro-abs.o %t.o -o %t6
|
|
// RUN: llvm-readobj -r %t6 | FileCheck --check-prefix=IREL1 %s
|
|
// RUN: ld.lld %t-rw-addend.o %t.o -o %t7
|
|
// RUN: llvm-readobj -r %t7 | FileCheck --check-prefix=IREL1 %s
|
|
// RUN: ld.lld %t.o -o %t8 -pie
|
|
// RUN: llvm-readobj -r %t8 | FileCheck --check-prefix=IREL1-REL2 %s
|
|
// RUN: ld.lld %t.o %t-ro-pcrel.o -o %t9 -pie
|
|
// RUN: llvm-readobj -r %t9 | FileCheck --check-prefix=IREL1-REL2 %s
|
|
// RUN: ld.lld %t.o %t-rw-addend.o -o %t10 -pie
|
|
// RUN: llvm-readobj -r %t10 | FileCheck --check-prefix=IREL1-REL3 %s
|
|
// RUN: ld.lld %t-ro-pcrel.o %t.o -o %t11 -pie
|
|
// RUN: llvm-readobj -r %t11 | FileCheck --check-prefix=IREL1-REL2 %s
|
|
// RUN: ld.lld %t-rw-addend.o %t.o -o %t12 -pie
|
|
// RUN: llvm-readobj -r %t12 | FileCheck --check-prefix=IREL1-REL3 %s
|
|
|
|
// One reloc for the canonical PLT.
|
|
// IREL1-NOT: R_X86_64_
|
|
// IREL1: .rela.dyn
|
|
// IREL1-NEXT: R_X86_64_IRELATIVE
|
|
// IREL1-NOT: R_X86_64_
|
|
|
|
// One reloc for the canonical PLT and two RELATIVE relocations pointing to it,
|
|
// one in the GOT and one in .data.
|
|
// IREL1-REL2-NOT: R_X86_64_
|
|
// IREL1-REL2: .rela.dyn
|
|
// IREL1-REL2-NEXT: R_X86_64_RELATIVE
|
|
// IREL1-REL2-NEXT: R_X86_64_RELATIVE
|
|
// IREL1-REL2-NEXT: R_X86_64_IRELATIVE
|
|
// IREL1-REL2-NOT: R_X86_64_
|
|
|
|
// One reloc for the canonical PLT and three RELATIVE relocations pointing to it,
|
|
// one in the GOT and two in .data.
|
|
// IREL1-REL3-NOT: R_X86_64_
|
|
// IREL1-REL3: .rela.dyn
|
|
// IREL1-REL3-NEXT: R_X86_64_RELATIVE
|
|
// IREL1-REL3-NEXT: R_X86_64_RELATIVE
|
|
// IREL1-REL3-NEXT: R_X86_64_RELATIVE
|
|
// IREL1-REL3-NEXT: R_X86_64_IRELATIVE
|
|
// IREL1-REL3-NOT: R_X86_64_
|
|
|
|
// Make sure the static relocations look right, both with and without headers.
|
|
// DUMP: Contents of section .iplt:
|
|
// DUMP-NEXT: 2011f0
|
|
// DUMP: Contents of section .got:
|
|
// DUMP-NEXT: 202200 f0112000 00000000
|
|
// DUMP: Contents of section .data:
|
|
// DUMP-NEXT: 203208 f0112000 00000000 f1112000 00000000
|
|
|
|
// DUMP2: Contents of section .plt:
|
|
// DUMP2-NEXT: 2011f0
|
|
// DUMP2: Contents of section .got:
|
|
// DUMP2-NEXT: 202240 20122000 00000000
|
|
// DUMP2: Contents of section .data:
|
|
// DUMP2-NEXT: 203248 20122000 00000000 21122000 00000000
|
|
|
|
lea ifunc@gotpcrel(%rip), %rbx
|
|
|
|
.type ifunc STT_GNU_IFUNC
|
|
.globl ifunc
|
|
ifunc:
|
|
ret
|
|
|
|
.data
|
|
.8byte ifunc
|