| # REQUIRES: x86 |
| # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux-gnu %s -o %t.o |
| |
| # Without --warn-text-ifunc, lld should run fine: |
| # RUN: ld.lld -z notext %t.o -o %t2 |
| |
| # With --warn-text-ifunc, lld should run with warnings: |
| # RUN: ld.lld --warn-ifunc-textrel -z notext %t.o -o /dev/null 2>&1 | FileCheck %s |
| # CHECK: using ifunc symbols when text relocations are allowed may produce |
| # CHECK-SAME: a binary that will segfault, if the object file is linked with |
| # CHECK-SAME: old version of glibc (glibc 2.28 and earlier). If this applies to |
| # CHECK-SAME: you, consider recompiling the object files without -fPIC and |
| # CHECK-SAME: without -Wl,-z,notext option. Use -no-warn-ifunc-textrel to |
| # CHECK-SAME: turn off this warning. |
| # CHECK: >>> defined in {{.*}} |
| # CHECK: >>> referenced by {{.*}}:(.text+0x8) |
| |
| # Without text relocations, lld should run fine: |
| # RUN: ld.lld --fatal-warnings %t.o -o /dev/null |
| |
| .text |
| .globl a_func_impl |
| a_func_impl: |
| nop |
| |
| .globl selector |
| .type selector,@function |
| selector: |
| movl $a_func_impl, %eax |
| retq |
| |
| .globl a_func |
| .type a_func,@gnu_indirect_function |
| .set a_func, selector |
| |
| .globl _start |
| .type _start,@function |
| main: |
| callq a_func |
| retq |