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comparison lld/test/ELF/textrel.s @ 150:1d019706d866

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LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
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147:c2174574ed3a 150:1d019706d866
1 # REQUIRES: x86
2 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux-gnu %s -o %t.o
3
4 # Without --warn-text-ifunc, lld should run fine:
5 # RUN: ld.lld -z notext %t.o -o %t2
6
7 # With --warn-text-ifunc, lld should run with warnings:
8 # RUN: ld.lld --warn-ifunc-textrel -z notext %t.o -o /dev/null 2>&1 | FileCheck %s
9 # CHECK: using ifunc symbols when text relocations are allowed may produce
10 # CHECK-SAME: a binary that will segfault, if the object file is linked with
11 # CHECK-SAME: old version of glibc (glibc 2.28 and earlier). If this applies to
12 # CHECK-SAME: you, consider recompiling the object files without -fPIC and
13 # CHECK-SAME: without -Wl,-z,notext option. Use -no-warn-ifunc-textrel to
14 # CHECK-SAME: turn off this warning.
15 # CHECK: >>> defined in {{.*}}
16 # CHECK: >>> referenced by {{.*}}:(.text+0x8)
17
18 # Without text relocations, lld should run fine:
19 # RUN: ld.lld --fatal-warnings %t.o -o /dev/null
20
21 .text
22 .globl a_func_impl
23 a_func_impl:
24 nop
25
26 .globl selector
27 .type selector,@function
28 selector:
29 movl $a_func_impl, %eax
30 retq
31
32 .globl a_func
33 .type a_func,@gnu_indirect_function
34 .set a_func, selector
35
36 .globl _start
37 .type _start,@function
38 main:
39 callq a_func
40 retq