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llvm-project/lld/test/COFF/long-section-name.test

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[test] Replace `yaml2obj >` with `yaml2obj -o` and remove unneeded input redirection
2020-08-21 06:00:25 +08:00
# RUN: yaml2obj %s -o %t.obj
Warn when an output section name is longer than 8 characters Recent versions of Microsoft's dumpbin tool cannot handle such PE files. LLVM tools and GNU tools can, and use this to encode long section names like ".debug_info", which is commonly used for DWARF. Don't do this in mingw mode or when -debug:dwarf is passed, since the user probably wants long section names for DWARF sections. PR43754 Reviewers: ruiu, mstorsjo Differential Revision: https://reviews.llvm.org/D69594
2019-10-30 06:57:40 +08:00
# RUN: lld-link /out:%t.exe /entry:main %t.obj 2>&1 | FileCheck %s --check-prefix=WARN
[test] Change llvm-readobj -long-option to --long-option or well-known short options. NFC Also change some options that have different semantics (cause confusion) in llvm-readelf mode: -s => -S -t => --symbols -sd => --section-data llvm-svn: 359651
2019-05-01 13:49:01 +08:00
# RUN: llvm-readobj --sections %t.exe | FileCheck %s
Warn when an output section name is longer than 8 characters Recent versions of Microsoft's dumpbin tool cannot handle such PE files. LLVM tools and GNU tools can, and use this to encode long section names like ".debug_info", which is commonly used for DWARF. Don't do this in mingw mode or when -debug:dwarf is passed, since the user probably wants long section names for DWARF sections. PR43754 Reviewers: ruiu, mstorsjo Differential Revision: https://reviews.llvm.org/D69594
2019-10-30 06:57:40 +08:00
# RUN: lld-link /debug /out:%t2.exe /entry:main %t.obj 2>&1 | FileCheck %s --check-prefix=WARN
[test] Change llvm-readobj -long-option to --long-option or well-known short options. NFC Also change some options that have different semantics (cause confusion) in llvm-readelf mode: -s => -S -t => --symbols -sd => --section-data llvm-svn: 359651
2019-05-01 13:49:01 +08:00
# RUN: llvm-readobj --sections %t2.exe | FileCheck %s
Warn when an output section name is longer than 8 characters Recent versions of Microsoft's dumpbin tool cannot handle such PE files. LLVM tools and GNU tools can, and use this to encode long section names like ".debug_info", which is commonly used for DWARF. Don't do this in mingw mode or when -debug:dwarf is passed, since the user probably wants long section names for DWARF sections. PR43754 Reviewers: ruiu, mstorsjo Differential Revision: https://reviews.llvm.org/D69594
2019-10-30 06:57:40 +08:00
#
# No warnings in mingw mode or with ignore flag.
# RUN: lld-link /out:%t.exe /entry:main %t.obj /ignore:longsections 2>&1 | FileCheck %s --check-prefix=IGNORE --allow-empty
# RUN: lld-link /out:%t.exe /entry:main %t.obj -lldmingw 2>&1 | FileCheck %s --check-prefix=IGNORE --allow-empty
# RUN: lld-link /out:%t.exe /entry:main %t.obj -debug:dwarf 2>&1 | FileCheck %s --check-prefix=IGNORE --allow-empty
# WARN: warning: section name .data_long_section_name is longer than 8 characters and will use a non-standard string table
# WARN: warning: section name .text_long_section_name is longer than 8 characters and will use a non-standard string table
# IGNORE-NOT: warning:
COFF: Support long section name. Section names were truncated to 8 bytes because the section table's name field is 8 byte long. This patch creates the string table to store long names. llvm-svn: 238661
2015-05-31 03:09:50 +08:00
[COFF] Don't write long section names for sections that will be mapped at runtime Sections that will be mapped at runtime will only have the short section name available, since the string table it points into isn't mapped. Therefore prefer truncating those names over writing a long name that is unavailable at runtime. This allows libunwind to find the .eh_frame section at runtime even if the module was built with debug info enabled. Differential Revision: https://reviews.llvm.org/D40025 llvm-svn: 318391
2017-11-16 20:06:42 +08:00
# CHECK: Name: .eh_fram (
COFF: Fix logic to find default entry name or subsystem. The previous logic to find default entry name or subsystem does not seem correct (i.e. was not compatible with MSVC linker). Previously, default entry name was inferred from CRT functions and user-defined entry functions. Subsystem was inferred from CRT functions. Default entry name and subsystem are now inferred based on the following table. Note that we no longer use CRT functions to infer them. Entry name Subsystem main mainCRTStartup console wmain wmainCRTStartup console WinMain WinMainCRTStartup windows wWinMain wWinMainCRTStartup windows llvm-svn: 240922
2015-06-29 09:03:53 +08:00
# CHECK: Name: .data_long_section_name
# CHECK: Name: .text_long_section_name
[yaml2obj] Updating LLD tests to account for LLVM r273915 This removed the -format flag from yaml2obj in favor of YAML tags. llvm-svn: 273920
2016-06-28 04:17:08 +08:00
--- !COFF
COFF: Support long section name. Section names were truncated to 8 bytes because the section table's name field is 8 byte long. This patch creates the string table to store long names. llvm-svn: 238661
2015-05-31 03:09:50 +08:00
header:
COFF: Don't read non-x64 object files. Currently the new LLD supports only x86-64. llvm-svn: 240749
2015-06-26 08:42:21 +08:00
Machine: IMAGE_FILE_MACHINE_AMD64
COFF: Support long section name. Section names were truncated to 8 bytes because the section table's name field is 8 byte long. This patch creates the string table to store long names. llvm-svn: 238661
2015-05-31 03:09:50 +08:00
Characteristics: [ ]
sections:
- Name: .text_long_section_name
[COFF] Don't write long section names for sections that will be mapped at runtime Sections that will be mapped at runtime will only have the short section name available, since the string table it points into isn't mapped. Therefore prefer truncating those names over writing a long name that is unavailable at runtime. This allows libunwind to find the .eh_frame section at runtime even if the module was built with debug info enabled. Differential Revision: https://reviews.llvm.org/D40025 llvm-svn: 318391
2017-11-16 20:06:42 +08:00
Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_DISCARDABLE ]
COFF: Support long section name. Section names were truncated to 8 bytes because the section table's name field is 8 byte long. This patch creates the string table to store long names. llvm-svn: 238661
2015-05-31 03:09:50 +08:00
Alignment: 4
SectionData: B82A000000C3
- Name: .data_long_section_name
[COFF] Don't write long section names for sections that will be mapped at runtime Sections that will be mapped at runtime will only have the short section name available, since the string table it points into isn't mapped. Therefore prefer truncating those names over writing a long name that is unavailable at runtime. This allows libunwind to find the .eh_frame section at runtime even if the module was built with debug info enabled. Differential Revision: https://reviews.llvm.org/D40025 llvm-svn: 318391
2017-11-16 20:06:42 +08:00
Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE, IMAGE_SCN_MEM_DISCARDABLE ]
Alignment: 4
SectionData: "00"
- Name: .eh_frame
COFF: Support long section name. Section names were truncated to 8 bytes because the section table's name field is 8 byte long. This patch creates the string table to store long names. llvm-svn: 238661
2015-05-31 03:09:50 +08:00
Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE ]
Alignment: 4
SectionData: "00"
symbols:
- Name: "@comp.id"
Value: 10394907
SectionNumber: 65535
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_NULL
StorageClass: IMAGE_SYM_CLASS_STATIC
- Name: .text_long_section_name
Value: 0
SectionNumber: 1
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_NULL
StorageClass: IMAGE_SYM_CLASS_STATIC
SectionDefinition:
Length: 6
NumberOfRelocations: 0
NumberOfLinenumbers: 0
CheckSum: 0
Number: 0
- Name: .data_long_section_name
Value: 0
SectionNumber: 2
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_NULL
StorageClass: IMAGE_SYM_CLASS_STATIC
SectionDefinition:
Length: 0
NumberOfRelocations: 0
NumberOfLinenumbers: 0
CheckSum: 0
Number: 0
[COFF] Don't write long section names for sections that will be mapped at runtime Sections that will be mapped at runtime will only have the short section name available, since the string table it points into isn't mapped. Therefore prefer truncating those names over writing a long name that is unavailable at runtime. This allows libunwind to find the .eh_frame section at runtime even if the module was built with debug info enabled. Differential Revision: https://reviews.llvm.org/D40025 llvm-svn: 318391
2017-11-16 20:06:42 +08:00
- Name: .eh_frame
Value: 0
SectionNumber: 3
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_NULL
StorageClass: IMAGE_SYM_CLASS_STATIC
SectionDefinition:
Length: 0
NumberOfRelocations: 0
NumberOfLinenumbers: 0
CheckSum: 0
Number: 0
COFF: Fix logic to find default entry name or subsystem. The previous logic to find default entry name or subsystem does not seem correct (i.e. was not compatible with MSVC linker). Previously, default entry name was inferred from CRT functions and user-defined entry functions. Subsystem was inferred from CRT functions. Default entry name and subsystem are now inferred based on the following table. Note that we no longer use CRT functions to infer them. Entry name Subsystem main mainCRTStartup console wmain wmainCRTStartup console WinMain WinMainCRTStartup windows wWinMain wWinMainCRTStartup windows llvm-svn: 240922
2015-06-29 09:03:53 +08:00
- Name: main
COFF: Support long section name. Section names were truncated to 8 bytes because the section table's name field is 8 byte long. This patch creates the string table to store long names. llvm-svn: 238661
2015-05-31 03:09:50 +08:00
Value: 0
SectionNumber: 1
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_NULL
StorageClass: IMAGE_SYM_CLASS_EXTERNAL
...