llvm-project

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# REQUIRES: x86
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# RUN: echo -e ".global variable\n.global DllMainCRTStartup\n.text\nDllMainCRTStartup:\nret\n.data\nvariable:\n.long 42" > %t-lib.s
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# RUN: llvm-mc -triple=x86_64-windows-gnu %t-lib.s -filetype=obj -o %t-lib.obj
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# RUN: lld-link -out:%t-lib.dll -dll -entry:DllMainCRTStartup %t-lib.obj -lldmingw -implib:%t-lib.lib
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# RUN: llvm-mc -triple=x86_64-windows-gnu %s -defsym listptrs=1 -filetype=obj -o %t.obj
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# RUN: lld-link -lldmingw -out:%t.exe -entry:main %t.obj %t-lib.lib -verbose
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# RUN: llvm-readobj --coff-imports %t.exe | FileCheck -check-prefix=IMPORTS %s
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# RUN: llvm-objdump --no-print-imm-hex -d %t.exe | FileCheck --check-prefix=DISASM %s
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# RUN: llvm-objdump -s %t.exe | FileCheck --check-prefix=CONTENTS %s
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## Check that we can autoimport these variables with pseudo relocs disabled.
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# RUN: llvm-mc -triple=x86_64-windows-gnu %s -defsym listptrs=0 -filetype=obj -o %t.noptrs.obj
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# RUN: lld-link -lldmingw -runtime-pseudo-reloc:no -out:%t.exe -entry:main %t.noptrs.obj %t-lib.lib
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## Check that we can't autoimport them with autoimport disabled.
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# RUN: not lld-link -lldmingw -auto-import:no -out:%t.exe -entry:main %t.noptrs.obj %t-lib.lib 2>&1 | FileCheck --check-prefix=NO-AUTOIMPORT %s
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# IMPORTS: Import {
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# IMPORTS-NEXT: Name: autoimport-refptr.s.tmp-lib.dll
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# IMPORTS-NEXT: ImportLookupTableRVA: 0x2050
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# IMPORTS-NEXT: ImportAddressTableRVA: 0x2060
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# IMPORTS-NEXT: Symbol: variable (0)
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# IMPORTS-NEXT: }
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# DISASM: Disassembly of section .text:
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# DISASM-EMPTY:
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# DISASM: <.text>:
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# Relative offset at 0x1002 pointing at the IAT at 0x2060
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# DISASM: 140001000:      48 8b 05 59 10 00 00    movq    4185(%rip), %rax
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# DISASM: 140001007:      8b 00   movl    (%rax), %eax
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# Relative offset at 0x100b pointing at the .refptr.localvar stub at
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# 0x2000
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# DISASM: 140001009:      48 8b 0d f0 0f 00 00    movq    4080(%rip), %rcx
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# DISASM: 140001010:      03 01   addl    (%rcx), %eax
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# DISASM: 140001012:      c3      retq
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# relocs: pointing at an empty list of runtime pseudo relocs.
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# localvar: 42
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# CONTENTS: Contents of section .data:
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# CONTENTS:  140003000 08200040 01000000 08200040 01000000
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# CONTENTS:  140003010 2a000000
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# NO-AUTOIMPORT: error: undefined symbol: variable
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    .global main
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    .global localvar
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    .text
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main:
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    movq .refptr.variable(%rip), %rax
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    movl (%rax), %eax
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    movq .refptr.localvar(%rip), %rcx
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    addl (%rcx), %eax
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    ret
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    .data
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.if listptrs==1
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relocs:
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    .quad __RUNTIME_PSEUDO_RELOC_LIST__
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    .quad __RUNTIME_PSEUDO_RELOC_LIST_END__
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.endif
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localvar:
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    .int 42
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# Normally the compiler wouldn't emit a stub for a variable that is
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# emitted in the same translation unit.
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    .section .rdata$.refptr.localvar,"dr",discard,.refptr.localvar
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    .global .refptr.localvar
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.refptr.localvar:
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    .quad localvar
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    .section .rdata$.refptr.variable,"dr",discard,.refptr.variable
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    .global .refptr.variable
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.refptr.variable:
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    .quad variable
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