[ELF][test] Rework non-preemptible ifunc tests

lld/test/ELF/gnu-ifunc-nonpreemptible.s

@@ -0,0 +1,67 @@
+# REQUIRES: x86
+# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
+# RUN: ld.lld %t.o -o %t
+# RUN: llvm-objdump -d %t | FileCheck %s --check-prefix=DISASM
+# RUN: llvm-readelf -r -s %t | FileCheck %s
+
+# RUN: ld.lld --export-dynamic %t.o -o %t
+# RUN: llvm-readelf -r -s %t | FileCheck %s
+
+# CHECK:      Relocation section '.rela.dyn' at offset {{.*}} contains 2 entries:
+# CHECK-NEXT:     Type
+# CHECK-NEXT: R_X86_64_IRELATIVE
+# CHECK-NEXT: R_X86_64_IRELATIVE
+
+# CHECK:      0 NOTYPE  LOCAL  HIDDEN     [[#]] __rela_iplt_start
+# CHECK-NEXT: 0 NOTYPE  LOCAL  HIDDEN     [[#]] __rela_iplt_end
+
+# RUN: ld.lld -pie %t.o -o %t1
+# RUN: llvm-readelf -s %t1 | FileCheck %s --check-prefix=PIC
+# RUN: ld.lld -shared %t.o -o %t2
+# RUN: llvm-readelf -s %t2 | FileCheck %s --check-prefix=PIC
+
+# PIC:        0 NOTYPE  LOCAL  HIDDEN     [[#]] __rela_iplt_start
+# PIC-NEXT:   0 NOTYPE  LOCAL  HIDDEN     [[#]] __rela_iplt_end
+
+# DISASM: Disassembly of section .text:
+# DISASM-EMPTY:
+# DISASM-NEXT: <foo>:
+# DISASM-NEXT:  201188: {{.*}} retq
+# DISASM:      <bar>:
+# DISASM-NEXT:  201189: {{.*}} retq
+# DISASM:      <_start>:
+# DISASM-NEXT:  20118a: {{.*}} callq 0x2011a0
+# DISASM-NEXT:  20118f: {{.*}} callq 0x2011b0
+# DISASM-EMPTY:
+# DISASM-NEXT: Disassembly of section .iplt:
+# DISASM-EMPTY:
+# DISASM-NEXT: <.iplt>:
+# DISASM-NEXT:  2011a0: {{.*}} jmpq *{{.*}}(%rip)  # 0x2021d0
+# DISASM-NEXT:  2011a6: {{.*}} pushq $0
+# DISASM-NEXT:  2011ab: {{.*}} jmp 0x0
+# DISASM-NEXT:  2011b0: {{.*}} jmpq *{{.*}}(%rip)  # 0x2021d8
+# DISASM-NEXT:  2011b6: {{.*}} pushq $1
+# DISASM-NEXT:  2011bb: {{.*}} jmp 0x0
+
+.text
+.type foo STT_GNU_IFUNC
+.globl foo
+foo:
+ ret
+
+.type bar STT_GNU_IFUNC
+.globl bar
+bar:
+ ret
+
+.weak __rela_iplt_start
+.weak __rela_iplt_end
+
+.globl _start
+_start:
+ call foo
+ call bar
+
+.data
+  .quad __rela_iplt_start
+  .quad __rela_iplt_end