xref: /llvm-project/lld/test/ELF/version-script-weak.s (revision 1c00530b30e21fd0f5b316401f6485bee08ce850)
1# REQUIRES: x86
2
3## An weak undefined symbol does not fetch the lazy definition.
4## Version scripts do not affect undefined symbols.
5
6# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
7# RUN: echo '.globl foo; foo:' | llvm-mc -filetype=obj -triple=x86_64 - -o %t1.o
8# RUN: echo "{ local: *; };" > %t.script
9# RUN: ld.lld -shared --version-script %t.script %t.o --start-lib %t1.o --end-lib -o %t.so
10# RUN: llvm-readobj --dyn-syms -r %t.so | FileCheck %s
11
12# CHECK:      Relocations [
13# CHECK-NEXT:   Section ({{.*}}) .rela.plt {
14# CHECK-NEXT:     R_X86_64_JUMP_SLOT foo
15# CHECK-NEXT:   }
16# CHECK-NEXT: ]
17# CHECK:      Symbol {
18# CHECK:        Name: foo
19# CHECK-NEXT:   Value: 0x0
20# CHECK-NEXT:   Size: 0
21# CHECK-NEXT:   Binding: Weak
22# CHECK-NEXT:   Type: None
23# CHECK-NEXT:   Other: 0
24# CHECK-NEXT:   Section: Undefined
25# CHECK-NEXT: }
26
27## The version of an unfetched lazy symbol is VER_NDX_GLOBAL. It is not affected by version scripts.
28# RUN: echo "v1 { *; };" > %t2.script
29# RUN: ld.lld -shared --version-script %t2.script %t.o --start-lib %t1.o --end-lib -o %t2.so
30# RUN: llvm-readelf --dyn-syms %t2.so | FileCheck %s --check-prefix=CHECK2
31
32# CHECK2: NOTYPE WEAK DEFAULT UND foo{{$}}
33
34# RUN: ld.lld -shared --soname=tshared --version-script %t2.script %t1.o -o %tshared.so
35# RUN: ld.lld -shared --version-script %t2.script %t.o --start-lib %t1.o --end-lib %tshared.so -o %t3.so
36# RUN: llvm-readelf --dyn-syms %t3.so | FileCheck %s --check-prefix=CHECK3
37
38# CHECK3: NOTYPE WEAK DEFAULT UND foo@v1
39
40.text
41 callq foo@PLT
42.weak foo
43