| ; Weak references (extern_weak) must be weak in the object file: the indirect |
| ; symbol through which the address of a function is taken, and the part |
| ; reference for external data. Otherwise the binder fails when the symbol |
| ; does not exist. |
| ; RUN: llc < %s -mtriple=s390x-ibm-zos | FileCheck %s |
| ; RUN: llc < %s -mtriple=s390x-ibm-zos --filetype=obj | \ |
| ; RUN: od -Ax -tx1 -v | FileCheck --check-prefix=CHECKOBJ --ignore-case %s |
| |
| ; CHECK-DAG: WXTRN wf@indirect |
| ; CHECK-DAG: WXTRN wf{{ *$}} |
| ; CHECK-NOT: {{^ EXTRN wf}} |
| |
| ; The last bytes of the ESD records: behavioral attributes 4-9 (binding |
| ; strength 1 = weak in byte 4), name length and name. |
| ; PR wv (external data): |
| ; CHECKOBJ: {{^[0-9a-f]+}} 01 04 24 00 00 00 00 02 a6 a5 |
| ; ER wf@indirect (external name wf, indirect reference): |
| ; CHECKOBJ: {{^[0-9a-f]+}} 01 14 20 00 00 00 00 02 a6 86 |
| ; ER wf: |
| ; CHECKOBJ: {{^[0-9a-f]+}} 01 04 20 00 00 00 00 02 a6 86 |
| |
| @wv = extern_weak global i32 |
| |
| declare extern_weak void @wf() |
| |
| define ptr @getv() { |
| ret ptr @wv |
| } |
| |
| define ptr @getf() { |
| ret ptr @wf |
| } |
| |
| define void @callf() { |
| call void @wf() |
| ret void |
| } |
