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llvm-project/lld/test/COFF/pdb-none.test

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COFF: prevent nullptr dereference If `/debugtypes` is used to omit the codeview information, we would not have constructed the debug info codeview record which is used to tie the PDB to the binary. In such a case, rub out the GUID and Age fields. llvm-svn: 294279
2017-02-07 12:28:02 +08:00
# RUN: yaml2obj < %p/Inputs/pdb1.yaml > %t1.obj
# RUN: yaml2obj < %p/Inputs/pdb2.yaml > %t2.obj
[LLD COFF/PDB] Incrementally update the build id. Previously, our algorithm to compute a build id involved hashing the executable and storing that as the GUID in the CV Debug Record chunk, and setting the age to 1. This breaks down in one very obvious case: a user adds some newlines to a file, rebuilds, but changes nothing else. This causes new line information and new file checksums to get written to the PDB, meaning that the debug info is different, but the generated code would be the same, so we would write the same build over again with an age of 1. Anyone using a symbol cache would have a problem now, because the debugger would open the executable, look at the age and guid, find a matching PDB in the symbol cache and then load it. It would never copy the new PDB to the symbol cache. This patch implements the canonical Windows algorithm for updating a build id, which is to check the existing executable first, and re-use an existing GUID while bumping the age if it already exists. Differential Revision: https://reviews.llvm.org/D36758 llvm-svn: 310961
2017-08-16 05:31:41 +08:00
# RUN: rm -f %t.pdb %t.dll
COFF: prevent nullptr dereference If `/debugtypes` is used to omit the codeview information, we would not have constructed the debug info codeview record which is used to tie the PDB to the binary. In such a case, rub out the GUID and Age fields. llvm-svn: 294279
2017-02-07 12:28:02 +08:00
# RUN: lld-link /debug /debugtype:pdata /pdb:%t.pdb /dll /out:%t.dll /entry:main /nodefaultlib \
[COFF] Fix interaction between /DEBUG and /PDB When /DEBUG is not specified, /PDB should be ignored. When /DEBUG is specified, a PDB should be output regardless of whether or not /PDB is specified. /PDB just overrides the default name. This patch implements this behavior, and adds some tests, while also removing a dead option /DEBUGPDB which was unused in any code. Differential Revision: https://reviews.llvm.org/D33302 llvm-svn: 303352
2017-05-18 23:15:10 +08:00
# RUN: %t1.obj %t2.obj
COFF: prevent nullptr dereference If `/debugtypes` is used to omit the codeview information, we would not have constructed the debug info codeview record which is used to tie the PDB to the binary. In such a case, rub out the GUID and Age fields. llvm-svn: 294279
2017-02-07 12:28:02 +08:00
Rename llvm-pdbdump -> llvm-pdbutil. This is to reflect the evolving nature of the tool as being useful for more than just dumping PDBs, as it can do many other things. Differential Revision: https://reviews.llvm.org/D34062 llvm-svn: 305106
2017-06-10 04:46:17 +08:00
# RUN: llvm-pdbutil pdb2yaml -pdb-stream %t.pdb | FileCheck %s
COFF: prevent nullptr dereference If `/debugtypes` is used to omit the codeview information, we would not have constructed the debug info codeview record which is used to tie the PDB to the binary. In such a case, rub out the GUID and Age fields. llvm-svn: 294279
2017-02-07 12:28:02 +08:00
# CHECK: PdbStream:
[LLD COFF/PDB] Incrementally update the build id. Previously, our algorithm to compute a build id involved hashing the executable and storing that as the GUID in the CV Debug Record chunk, and setting the age to 1. This breaks down in one very obvious case: a user adds some newlines to a file, rebuilds, but changes nothing else. This causes new line information and new file checksums to get written to the PDB, meaning that the debug info is different, but the generated code would be the same, so we would write the same build over again with an age of 1. Anyone using a symbol cache would have a problem now, because the debugger would open the executable, look at the age and guid, find a matching PDB in the symbol cache and then load it. It would never copy the new PDB to the symbol cache. This patch implements the canonical Windows algorithm for updating a build id, which is to check the existing executable first, and re-use an existing GUID while bumping the age if it already exists. Differential Revision: https://reviews.llvm.org/D36758 llvm-svn: 310961
2017-08-16 05:31:41 +08:00
# CHECK-NEXT: Age: 1
[PDB] More changes to bring lld PDBs to parity with MSVC. 1) Don't write a /src/headerblock stream. This appears to be written conditionally by MSVC, but it's not clear what the condition is. For now, just remove it since we dont' know what it is anyway and the particular pdb we've checked in for the test doesn't have one. 2) Write a valid timestamp for the PDB file signature. This leads to non-reproducible builds, but it matches the default behavior of link, so it should be out default as well. If we need reproducibility, we should add a separate command line option for it that is off by default. 3) Write an empty FPO stream. MSVC seems to always write an FPO stream. This change makes the stream directory match up, although we still need to make the contents of the FPO stream match. llvm-svn: 307436
2017-07-08 04:25:39 +08:00
# CHECK-NEXT: Guid:
# CHECK-NEXT: Signature:
Fix broken LLD test. llvm-svn: 305260
2017-06-13 08:30:09 +08:00
# CHECK-NEXT: Features: [ VC140 ]
COFF: prevent nullptr dereference If `/debugtypes` is used to omit the codeview information, we would not have constructed the debug info codeview record which is used to tie the PDB to the binary. In such a case, rub out the GUID and Age fields. llvm-svn: 294279
2017-02-07 12:28:02 +08:00
# CHECK-NEXT: Version: VC70