1# REQUIRES: x86 2 3## Test creating a DLL and linking against the DLL without using an import 4## library. 5 6## Explicitly creating an import library but naming it differently than the 7## DLL, to avoid any risk of implicitly referencing it instead of the DLL 8## itself. 9 10## Linking the executable with -opt:noref, to make sure that we don't 11## pull in more import entries than what's needed, even if not running GC. 12 13# RUN: split-file %s %t.dir 14 15# RUN: llvm-mc -filetype=obj -triple=x86_64-windows-gnu %t.dir/lib.s -o %t.lib.o 16# RUN: lld-link -noentry -dll -def:%t.dir/lib.def %t.lib.o -out:%t.lib.dll -implib:%t.implib.lib 17# RUN: llvm-mc -filetype=obj -triple=x86_64-windows-gnu %t.dir/main.s -o %t.main.o 18# RUN: lld-link -lldmingw %t.main.o -out:%t.main.exe %t.lib.dll -opt:noref -verbose 2>&1 | FileCheck --check-prefix=LOG %s 19# RUN: llvm-readobj --coff-imports %t.main.exe | FileCheck %s 20 21#--- lib.s 22.text 23.global func1 24func1: 25 ret 26.global func2 27func2: 28 ret 29.global func3 30func3: 31 ret 32.data 33.global variable 34variable: 35 .int 42 36 37#--- lib.def 38EXPORTS 39func1 40func2 41func3 42variable 43 44#--- main.s 45.text 46.global mainCRTStartup 47mainCRTStartup: 48 call func2 49 movq .refptr.variable(%rip), %rax 50 movl (%rax), %eax 51 ret 52 53.section .rdata$.refptr.variable,"dr",discard,.refptr.variable 54.globl .refptr.variable 55.refptr.variable: 56 .quad variable 57 58# CHECK: Import { 59# CHECK-NEXT: Name: link-dll.s.tmp.lib.dll 60# CHECK-NEXT: ImportLookupTableRVA: 61# CHECK-NEXT: ImportAddressTableRVA 62# CHECK-NEXT: Symbol: func2 63# CHECK-NEXT: Symbol: variable 64# CHECK-NEXT: } 65 66# LOG: Automatically importing variable from link-dll.s.tmp.lib.dll 67