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llvm-project/lld/test/COFF/export.test

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COFF: Support creating DLLs. DLL files are in the same format as executables but they have export tables. The format of the export table is described in PE/COFF spec section 5.3. A new class, EdataContents, takes care of creating chunks for export tables. What we need to do is to parse command line flags for dllexports, and then instantiate the class to create chunks. For the writer, export table chunks are opaque data -- it just add chunks to .edata section. llvm-svn: 239869
2015-06-17 08:16:33 +08:00
# RUN: yaml2obj < %p/Inputs/export.yaml > %t.obj
#
COFF: Make test commands shorter. NFC. llvm-svn: 244227
2015-08-07 00:47:46 +08:00
# RUN: lld-link /out:%t.dll /dll %t.obj /export:exportfn1 /export:exportfn2
COFF: Support creating DLLs. DLL files are in the same format as executables but they have export tables. The format of the export table is described in PE/COFF spec section 5.3. A new class, EdataContents, takes care of creating chunks for export tables. What we need to do is to parse command line flags for dllexports, and then instantiate the class to create chunks. For the writer, export table chunks are opaque data -- it just add chunks to .edata section. llvm-svn: 239869
2015-06-17 08:16:33 +08:00
# RUN: llvm-objdump -p %t.dll | FileCheck -check-prefix=CHECK1 %s
CHECK1: Export Table:
CHECK1: DLL name: export.test.tmp.dll
CHECK1: Ordinal RVA Name
CHECK1-NEXT: 0 0
CHECK1-NEXT: 1 0x1008 exportfn1
CHECK1-NEXT: 2 0x1010 exportfn2
COFF: Make test commands shorter. NFC. llvm-svn: 244227
2015-08-07 00:47:46 +08:00
# RUN: lld-link /out:%t.dll /dll %t.obj /export:exportfn1,@5 /export:exportfn2
COFF: Support creating DLLs. DLL files are in the same format as executables but they have export tables. The format of the export table is described in PE/COFF spec section 5.3. A new class, EdataContents, takes care of creating chunks for export tables. What we need to do is to parse command line flags for dllexports, and then instantiate the class to create chunks. For the writer, export table chunks are opaque data -- it just add chunks to .edata section. llvm-svn: 239869
2015-06-17 08:16:33 +08:00
# RUN: llvm-objdump -p %t.dll | FileCheck -check-prefix=CHECK2 %s
CHECK2: Export Table:
CHECK2: DLL name: export.test.tmp.dll
CHECK2: Ordinal RVA Name
CHECK2-NEXT: 0 0
CHECK2-NEXT: 1 0
CHECK2-NEXT: 2 0
CHECK2-NEXT: 3 0
CHECK2-NEXT: 4 0
CHECK2-NEXT: 5 0x1008 exportfn1
CHECK2-NEXT: 6 0x1010 exportfn2
CHECK2-NEXT: 7 0x1010 exportfn3
COFF: Make test commands shorter. NFC. llvm-svn: 244227
2015-08-07 00:47:46 +08:00
# RUN: lld-link /out:%t.dll /dll %t.obj /export:exportfn1,@5,noname /export:exportfn2
COFF: Support creating DLLs. DLL files are in the same format as executables but they have export tables. The format of the export table is described in PE/COFF spec section 5.3. A new class, EdataContents, takes care of creating chunks for export tables. What we need to do is to parse command line flags for dllexports, and then instantiate the class to create chunks. For the writer, export table chunks are opaque data -- it just add chunks to .edata section. llvm-svn: 239869
2015-06-17 08:16:33 +08:00
# RUN: llvm-objdump -p %t.dll | FileCheck -check-prefix=CHECK3 %s
CHECK3: Export Table:
CHECK3: DLL name: export.test.tmp.dll
CHECK3: Ordinal RVA Name
CHECK3-NEXT: 0 0
CHECK3-NEXT: 1 0
CHECK3-NEXT: 2 0
CHECK3-NEXT: 3 0
CHECK3-NEXT: 4 0
CHECK3-NEXT: 5 0x1008
CHECK3-NEXT: 6 0x1010 exportfn2
[COFF] Don't produce weak aliases in import libraries When creating an import library from lld, the cases with Name != ExtName shouldn't end up as a weak alias, but as a real export of the new name, which is what actually is exported from the DLL. This restores the behaviour of renamed exports to what it was in 4.0. Differential Revision: https://reviews.llvm.org/D36634 llvm-svn: 310992
2017-08-16 13:23:00 +08:00
# RUN: lld-link /out:%t.dll /dll %t.obj /export:f1=exportfn1 /export:f2=exportfn2 /implib:%t.lib
COFF: Support creating DLLs. DLL files are in the same format as executables but they have export tables. The format of the export table is described in PE/COFF spec section 5.3. A new class, EdataContents, takes care of creating chunks for export tables. What we need to do is to parse command line flags for dllexports, and then instantiate the class to create chunks. For the writer, export table chunks are opaque data -- it just add chunks to .edata section. llvm-svn: 239869
2015-06-17 08:16:33 +08:00
# RUN: llvm-objdump -p %t.dll | FileCheck -check-prefix=CHECK4 %s
[COFF] Don't produce weak aliases in import libraries When creating an import library from lld, the cases with Name != ExtName shouldn't end up as a weak alias, but as a real export of the new name, which is what actually is exported from the DLL. This restores the behaviour of renamed exports to what it was in 4.0. Differential Revision: https://reviews.llvm.org/D36634 llvm-svn: 310992
2017-08-16 13:23:00 +08:00
# RUN: llvm-nm %t.lib | FileCheck -check-prefix=CHECK4-NM %s
COFF: Support creating DLLs. DLL files are in the same format as executables but they have export tables. The format of the export table is described in PE/COFF spec section 5.3. A new class, EdataContents, takes care of creating chunks for export tables. What we need to do is to parse command line flags for dllexports, and then instantiate the class to create chunks. For the writer, export table chunks are opaque data -- it just add chunks to .edata section. llvm-svn: 239869
2015-06-17 08:16:33 +08:00
CHECK4: Export Table:
CHECK4: DLL name: export.test.tmp.dll
CHECK4: Ordinal RVA Name
CHECK4-NEXT: 0 0
CHECK4-NEXT: 1 0x1010 exportfn3
CHECK4-NEXT: 2 0x1008 f1
CHECK4-NEXT: 3 0x1010 f2
[COFF] Don't produce weak aliases in import libraries When creating an import library from lld, the cases with Name != ExtName shouldn't end up as a weak alias, but as a real export of the new name, which is what actually is exported from the DLL. This restores the behaviour of renamed exports to what it was in 4.0. Differential Revision: https://reviews.llvm.org/D36634 llvm-svn: 310992
2017-08-16 13:23:00 +08:00
CHECK4-NM: 00000000 T f1
CHECK4-NM: 00000000 T f2
COFF: Support module-definition files. Module-definition files (.def files) are yet another way to specify parameters to the linker. You can write a list of dllexported symbols in module-definition files instead of using /export command line option. It also supports a few more directives. The parser code is taken from lib/Driver/WinLinkModuleDef.cpp with the following modifications. - variable names are updated to comply with the LLVM coding style. - Instead of returning parsing results as "directive" objects, it updates Config object directly. llvm-svn: 239929
2015-06-18 03:19:25 +08:00
# RUN: echo "EXPORTS exportfn1 @3" > %t.def
# RUN: echo "fn2=exportfn2 @2" >> %t.def
COFF: Make test commands shorter. NFC. llvm-svn: 244227
2015-08-07 00:47:46 +08:00
# RUN: lld-link /out:%t.dll /dll %t.obj /def:%t.def
COFF: Support module-definition files. Module-definition files (.def files) are yet another way to specify parameters to the linker. You can write a list of dllexported symbols in module-definition files instead of using /export command line option. It also supports a few more directives. The parser code is taken from lib/Driver/WinLinkModuleDef.cpp with the following modifications. - variable names are updated to comply with the LLVM coding style. - Instead of returning parsing results as "directive" objects, it updates Config object directly. llvm-svn: 239929
2015-06-18 03:19:25 +08:00
# RUN: llvm-objdump -p %t.dll | FileCheck -check-prefix=CHECK5 %s
CHECK5: Export Table:
CHECK5: DLL name: export.test.tmp.dll
CHECK5: Ordinal RVA Name
CHECK5-NEXT: 0 0
CHECK5-NEXT: 1 0
CHECK5-NEXT: 2 0x1010 fn2
CHECK5-NEXT: 3 0x1008 exportfn1
CHECK5-NEXT: 4 0x1010 exportfn3
COFF: Don't print warning message for identical /export options. llvm-svn: 241379
2015-07-04 07:23:29 +08:00
COFF: Preserve original spelling of DLL file name. This patch fixes a subtle incompatibility with MSVC linker. MSVC linker preserves the original spelling of a DLL in the import descriptor table. LLD previously converted all characters to lowercase. Usually this difference is benign, but if a program explicitly checks for DLL file names, the program could fail. llvm-svn: 246620
2015-09-02 15:27:31 +08:00
# RUN: lld-link /out:%t.DLL /dll %t.obj /export:exportfn1 /export:exportfn2 \
COFF: Don't print warning message for identical /export options. llvm-svn: 241379
2015-07-04 07:23:29 +08:00
# RUN: /export:exportfn1 /export:exportfn2,@5 >& %t.log
# RUN: FileCheck -check-prefix=CHECK6 %s < %t.log
CHECK6: duplicate /export option: exportfn2
CHECK6-NOT: duplicate /export option: exportfn1
COFF: Set "Data" bit for data symbols in the import descriptor. llvm-svn: 246533
2015-09-01 14:46:10 +08:00
# RUN: llvm-nm -M %t.lib | FileCheck --check-prefix=SYMTAB %s
COFF: Preserve original spelling of DLL file name. This patch fixes a subtle incompatibility with MSVC linker. MSVC linker preserves the original spelling of a DLL in the import descriptor table. LLD previously converted all characters to lowercase. Usually this difference is benign, but if a program explicitly checks for DLL file names, the program could fail. llvm-svn: 246620
2015-09-02 15:27:31 +08:00
SYMTAB: __imp_exportfn1 in export.test.tmp.DLL
SYMTAB: exportfn1 in export.test.tmp.DLL
SYMTAB: __imp_exportfn2 in export.test.tmp.DLL
SYMTAB: exportfn2 in export.test.tmp.DLL
SYMTAB: __imp_exportfn3 in export.test.tmp.DLL
SYMTAB: exportfn3 in export.test.tmp.DLL
COFF: Implement DLL symbol forwarding. DLL export tables usually contain dllexport'ed symbol RVAs so that applications which use the DLLs can find symbols from the DLLs. However, there's a minor feature to "forward" DLL symbols to other DLLs. If you set an RVA to a string whose form is "<dllname>.<symbolname>" (e.g. "KERNEL32.ExitProcess") instead of symbol RVA to the export table, the loader interprets that as a forwarder symbol, and resolve that symbol from the specified DLL. This patch implements that feature. llvm-svn: 257243
2016-01-09 09:22:00 +08:00
# RUN: lld-link /out:%t.dll /dll %t.obj /export:foo=kernel32.foobar
# RUN: llvm-objdump -p %t.dll | FileCheck -check-prefix=FORWARDER %s
FORWARDER: Export Table:
FORWARDER: DLL name: export.test.tmp.dll
FORWARDER: Ordinal base: 0
FORWARDER: Ordinal RVA Name
FORWARDER: 0 0
FORWARDER: 1 0x1010 exportfn
COFF: Update test for recent llvm-objdump change (r257539). This test now correctly checks if the specified forwarding-to symbol exists in the export table. llvm-svn: 257540
2016-01-13 07:29:42 +08:00
FORWARDER: 2 foo (forwarded to kernel32.foobar)