From 7ad72ebc5e1429c3a337f7b51d01c6f292bdacdc Mon Sep 17 00:00:00 2001 From: Rui Ueyama Date: Tue, 18 Mar 2014 19:37:50 +0000 Subject: [PECOFF] Support yet another new type of weak symbol. COMDAT_SELECT_LARGEST is a COMDAT type that make linker to choose the largest definition from among all of the definition of a symbol. If the size is the same, the choice is arbitrary. Differential Revision: http://llvm-reviews.chandlerc.com/D3011 llvm-svn: 204172 --- lld/test/pecoff/Inputs/merge-largest1.obj.yaml | 25 +++++++++++++++++++++++++ lld/test/pecoff/Inputs/merge-largest2.obj.yaml | 25 +++++++++++++++++++++++++ lld/test/pecoff/merge-largest.test | 24 ++++++++++++++++++++++++ 3 files changed, 74 insertions(+) create mode 100644 lld/test/pecoff/Inputs/merge-largest1.obj.yaml create mode 100644 lld/test/pecoff/Inputs/merge-largest2.obj.yaml create mode 100644 lld/test/pecoff/merge-largest.test (limited to 'lld/test') diff --git a/lld/test/pecoff/Inputs/merge-largest1.obj.yaml b/lld/test/pecoff/Inputs/merge-largest1.obj.yaml new file mode 100644 index 00000000000..40ba41f3672 --- /dev/null +++ b/lld/test/pecoff/Inputs/merge-largest1.obj.yaml @@ -0,0 +1,25 @@ +--- +header: + Machine: IMAGE_FILE_MACHINE_I386 + Characteristics: [ ] +sections: + - Name: .text + Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ] + Alignment: 16 + SectionData: 00112233 +symbols: + - Name: .text + Value: 0 + SectionNumber: 1 + SimpleType: IMAGE_SYM_TYPE_NULL + ComplexType: IMAGE_SYM_DTYPE_NULL + StorageClass: IMAGE_SYM_CLASS_STATIC + NumberOfAuxSymbols: 1 + AuxiliaryData: 0700000000000000C979F796000006000000 + - Name: "_foo" + Value: 0 + SectionNumber: 1 + SimpleType: IMAGE_SYM_TYPE_NULL + ComplexType: IMAGE_SYM_DTYPE_FUNCTION + StorageClass: IMAGE_SYM_CLASS_EXTERNAL +... diff --git a/lld/test/pecoff/Inputs/merge-largest2.obj.yaml b/lld/test/pecoff/Inputs/merge-largest2.obj.yaml new file mode 100644 index 00000000000..962489a20a1 --- /dev/null +++ b/lld/test/pecoff/Inputs/merge-largest2.obj.yaml @@ -0,0 +1,25 @@ +--- +header: + Machine: IMAGE_FILE_MACHINE_I386 + Characteristics: [ ] +sections: + - Name: .text + Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ] + Alignment: 16 + SectionData: 0011223344556677 +symbols: + - Name: .text + Value: 0 + SectionNumber: 1 + SimpleType: IMAGE_SYM_TYPE_NULL + ComplexType: IMAGE_SYM_DTYPE_NULL + StorageClass: IMAGE_SYM_CLASS_STATIC + NumberOfAuxSymbols: 1 + AuxiliaryData: 0700000000000000C979F796000006000000 + - Name: "_foo" + Value: 6 + SectionNumber: 1 + SimpleType: IMAGE_SYM_TYPE_NULL + ComplexType: IMAGE_SYM_DTYPE_FUNCTION + StorageClass: IMAGE_SYM_CLASS_EXTERNAL +... diff --git a/lld/test/pecoff/merge-largest.test b/lld/test/pecoff/merge-largest.test new file mode 100644 index 00000000000..73d2d940660 --- /dev/null +++ b/lld/test/pecoff/merge-largest.test @@ -0,0 +1,24 @@ +# RUN: yaml2obj %p/Inputs/merge-largest1.obj.yaml > %t1.obj +# RUN: yaml2obj %p/Inputs/merge-largest2.obj.yaml > %t2.obj +# +# RUN: lld -flavor link /out:%t.exe /subsystem:console /opt:noref /force \ +# RUN: -- %t1.obj %t2.obj 2>&1 > %t.log +# +# FileCheck complains if the input files is empty, so add a dummy line. +# RUN: echo foo >> %t.log +# RUN: FileCheck -check-prefix=STDERR %s < %t.log +# +# RUN: llvm-readobj -sections %t.exe | FileCheck -check-prefix=READOBJ %s + +STDERR-NOT: duplicate symbol error + +READOBJ: Format: COFF-i386 +READOBJ-NEXT: Arch: i386 +READOBJ-NEXT: AddressSize: 32bit +READOBJ-NEXT: Sections [ +READOBJ-NEXT: Section { +READOBJ-NEXT: Number: 1 +READOBJ-NEXT: Name: .text (2E 74 65 78 74 00 00 00) +READOBJ-NEXT: VirtualSize: 0x8 +READOBJ-NEXT: VirtualAddress: 0x1000 +READOBJ-NEXT: RawDataSize: 8 -- cgit v1.2.3