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llvm-project/lld/test/ELF/lto/archive-no-index.ll

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COFF: include archive name in LTO object name Summary: In the ELF linker, we create the buffer identifier for bitcode files by appending the object name to the archive name. This change makes the COFF linker do the same. Without the change, ThinLTO builds can fail with an error message about multiple ThinLTO modules per object file, caused by object files contained in different archives having the same name. Reviewers: pcc, ruiu Reviewed By: pcc Subscribers: mehdi_amini Differential Revision: https://reviews.llvm.org/D31402 llvm-svn: 298942
2017-03-29 05:20:06 +08:00
; REQUIRES: x86
; Tests that we suggest that LTO symbols missing from an archive index
; may be the cause of undefined references, but only if we both
; encountered an empty archive index and undefined references (to prevent
; noisy false alarms).
; RUN: rm -fr %T/archive-no-index
; RUN: mkdir %T/archive-no-index
; RUN: llvm-as %S/Inputs/archive.ll -o %T/archive-no-index/f.o
; RUN: llvm-ar cr %T/archive-no-index/libf.a
; RUN: llvm-ar qS %T/archive-no-index/libf.a %T/archive-no-index/f.o
; RUN: llvm-as %s -o %t.o
; RUN: not ld.lld -emain -m elf_x86_64 %t.o -o %t %T/archive-no-index/libf.a \
; RUN: 2>&1 | FileCheck --check-prefix=NOTE %s
; RUN: llvm-ar crs %T/archive-no-index/libfs.a %T/archive-no-index/f.o
; RUN: ld.lld -emain -m elf_x86_64 %t.o -o %t %T/archive-no-index/libf.a \
; RUN: %T/archive-no-index/libfs.a
; RUN: llvm-as %S/Inputs/archive-3.ll -o %T/archive-no-index/foo.o
; RUN: llvm-ar crs %T/archive-no-index/libfoo.a %T/archive-no-index/foo.o
; RUN: not ld.lld -emain -m elf_x86_64 %t.o -o %t %T/archive-no-index/libfoo.a \
; RUN: 2>&1 | FileCheck --check-prefix=NO-NOTE %s
Change the error message format for undefined symbols. Previously, undefined symbol errors are one line like this and wasn't easy to read. /ssd/clang/bin/ld.lld: error: /ssd/llvm-project/lld/ELF/Writer.cpp:207: undefined symbol 'lld::elf::EhFrameSection<llvm::object::ELFType<(llvm::support::endianness)0, true> >::addSection(lld::elf::InputSectionBase*)' This patch make it more structured like this. bin/ld.lld: error: undefined symbol: lld::elf::EhFrameSection<llvm::object::ELFType<(llvm::support::endianness)0, true> >>> Referenced by Writer.cpp:207 (/ssd/llvm-project/lld/ELF/Writer.cpp:207) >>> Writer.cpp.o in archive lib/liblldELF.a Discussion thread: http://lists.llvm.org/pipermail/llvm-dev/2017-March/111459.html Differential Revision: https://reviews.llvm.org/D31481 llvm-svn: 299097
2017-03-31 03:13:47 +08:00
; NOTE: undefined symbol: f
COFF: include archive name in LTO object name Summary: In the ELF linker, we create the buffer identifier for bitcode files by appending the object name to the archive name. This change makes the COFF linker do the same. Without the change, ThinLTO builds can fail with an error message about multiple ThinLTO modules per object file, caused by object files contained in different archives having the same name. Reviewers: pcc, ruiu Reviewed By: pcc Subscribers: mehdi_amini Differential Revision: https://reviews.llvm.org/D31402 llvm-svn: 298942
2017-03-29 05:20:06 +08:00
; NOTE: archive listed no symbols
Change the error message format for undefined symbols. Previously, undefined symbol errors are one line like this and wasn't easy to read. /ssd/clang/bin/ld.lld: error: /ssd/llvm-project/lld/ELF/Writer.cpp:207: undefined symbol 'lld::elf::EhFrameSection<llvm::object::ELFType<(llvm::support::endianness)0, true> >::addSection(lld::elf::InputSectionBase*)' This patch make it more structured like this. bin/ld.lld: error: undefined symbol: lld::elf::EhFrameSection<llvm::object::ELFType<(llvm::support::endianness)0, true> >>> Referenced by Writer.cpp:207 (/ssd/llvm-project/lld/ELF/Writer.cpp:207) >>> Writer.cpp.o in archive lib/liblldELF.a Discussion thread: http://lists.llvm.org/pipermail/llvm-dev/2017-March/111459.html Differential Revision: https://reviews.llvm.org/D31481 llvm-svn: 299097
2017-03-31 03:13:47 +08:00
; NO-NOTE: undefined symbol: f
COFF: include archive name in LTO object name Summary: In the ELF linker, we create the buffer identifier for bitcode files by appending the object name to the archive name. This change makes the COFF linker do the same. Without the change, ThinLTO builds can fail with an error message about multiple ThinLTO modules per object file, caused by object files contained in different archives having the same name. Reviewers: pcc, ruiu Reviewed By: pcc Subscribers: mehdi_amini Differential Revision: https://reviews.llvm.org/D31402 llvm-svn: 298942
2017-03-29 05:20:06 +08:00
; NO-NOTE-NOT: archive listed no symbols
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
declare void @f()
define i32 @main() {
call void @f()
ret i32 0
}