xref: /llvm-project/lld/test/ELF/tls-weak-undef.s (revision 75cdab6dc2453a508157a9c383b93373a93078d6)
1# REQUIRES: x86
2
3# RUN: split-file %s %t
4# RUN: llvm-mc -filetype=obj -triple=x86_64 %t/exec.s -o %texec.o
5# RUN: llvm-mc -filetype=obj -triple=x86_64 %t/shared.s -o %tshared.o
6# RUN: llvm-mc -filetype=obj -triple=x86_64 %t/ledef.s -o %tdef.o
7# RUN: ld.lld %texec.o -o %t.exec
8# RUN: ld.lld %tshared.o -o %t.shared --shared
9# RUN: llvm-objdump --no-print-imm-hex -d %t.exec | FileCheck %s --check-prefix=EXEC
10# RUN: llvm-objdump --no-print-imm-hex -d %t.shared | FileCheck %s --check-prefix=SHARED
11
12## An undefined weak TLS symbol does not fetch a lazy definition.
13# RUN: ld.lld %texec.o --start-lib %tdef.o --end-lib -o %tlazy
14# RUN: llvm-objdump --no-print-imm-hex -d %tlazy | FileCheck %s --check-prefix=EXEC
15
16## Undefined TLS symbols arbitrarily resolve to 0.
17# EXEC:   leaq 16(%rax), %rdx
18## Initial-exec references to undefined weak symbols can be relaxed to LE
19## references.
20# EXEC:   leaq 32(%rax), %rax
21# SHARED: leaq 48(%rax), %rcx
22
23# RUN: ld.lld -shared %tdef.o -o %tdef.so
24# RUN: not ld.lld %texec.o %tdef.so -o /dev/null 2>&1 | FileCheck --check-prefix=ERROR %s
25
26# ERROR: error: relocation R_X86_64_TPOFF32 cannot be used against symbol 'le'; recompile with -fPIC
27
28#--- ledef.s
29.tbss
30.globl le
31le:
32
33#--- exec.s
34.weak le
35leaq le@tpoff+16(%rax), %rdx
36
37.weak ie
38addq ie@gottpoff+32(%rip), %rax
39
40#--- shared.s
41.weak ld
42leaq ld@dtpoff+48(%rax), %rcx
43