mirror of
https://github.com/RPCS3/llvm.git
synced 2026-07-01 21:04:04 -04:00
George Rimar
38d4353156
This patch tries to resolve problems faced in D68943 and uses some of the code written by Konrad Wilhelm Kleine in that patch. Previously, yaml2obj tool always created a .symtab section. This patch changes that. With it we only create it when have a "Symbols:" tag in the YAML document or when we need to create it because it is used by another section(s). obj2yaml follows the new behavior and does not print "Symbols:" anymore when there is no symbol table. Differential revision: https://reviews.llvm.org/D69041 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375361 91177308-0d34-0410-b5e6-96231b3b80d8
204 lines
5.5 KiB
YAML
204 lines
5.5 KiB
YAML
## In this test we check that can redefine the null section in the YAML.
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## Test the default output first.
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# RUN: yaml2obj --docnum=1 %s -o %t1
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# RUN: llvm-readelf --sections %t1 | FileCheck %s --check-prefix=DEFAULT
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# DEFAULT: Section Headers:
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# DEFAULT-NEXT: [Nr] Name Type Address Off Size ES Flg Lk Inf Al
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# DEFAULT-NEXT: [ 0] NULL 0000000000000000 000000 000000 00 0 0 0
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# DEFAULT-NEXT: [ 1] .strtab STRTAB 0000000000000000 000040 000001 00 0 0 1
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# DEFAULT-NEXT: [ 2] .shstrtab STRTAB 0000000000000000 000041 000013 00 0 0 1
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_REL
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Machine: EM_X86_64
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## Now define a SHT_NULL section with fields all zeroed.
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## In this case it is equal to the section created by default.
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# RUN: yaml2obj --docnum=2 %s -o %t2
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# RUN: llvm-readelf --sections %t2 | FileCheck %s --check-prefix=DEFAULT
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_REL
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Machine: EM_X86_64
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Sections:
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- Type: SHT_NULL
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Name: ''
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Flags: [ ]
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AddressAlign: 0x0
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Size: 0x0
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EntSize: 0x0
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Link: 0
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Info: 0
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Address: 0x0
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## Check we can redefine fields of the first SHT_NULL section.
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# RUN: yaml2obj --docnum=3 %s -o %t3
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# RUN: llvm-readelf --sections %t3 | FileCheck %s --check-prefix=REDEFINE
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# REDEFINE: Section Headers:
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# REDEFINE-NEXT: [Nr] Name Type Address Off Size ES Flg Lk Inf Al
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# REDEFINE-NEXT: [ 0] .foo NULL 0000000000000006 000000 000002 03 A 4 5 1
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_REL
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Machine: EM_X86_64
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Sections:
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- Type: SHT_NULL
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Name: .foo
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Flags: [ SHF_ALLOC ]
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AddressAlign: 0x1
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Size: 0x2
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EntSize: 0x3
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Link: 4
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Info: 5
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Address: 0x6
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## Check that file size does not change if we redefine the Size
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## of the first SHT_NULL section.
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# RUN: yaml2obj --docnum=4 %s -o %t4
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# RUN: ls -l %t3 | tr -s ' ' | cut -d ' ' -f 5 > %t.txt
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# RUN: ls -l %t4 | tr -s ' ' | cut -d ' ' -f 5 >> %t.txt
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# RUN: FileCheck %s --input-file=%t.txt --check-prefix=SIZE
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# SIZE: [[FILESIZE:.*]]
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# SIZE: [[FILESIZE]]
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_REL
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Machine: EM_X86_64
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Sections:
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- Type: SHT_NULL
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Name: .foo
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Flags: [ SHF_ALLOC ]
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AddressAlign: 0x1
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Size: 0xFFFF
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EntSize: 0x3
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Link: 4
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Info: 5
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Address: 0x6
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## Check we are still able to describe other sections too.
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# RUN: yaml2obj --docnum=5 %s -o %t5
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# RUN: llvm-readelf --sections %t5 | FileCheck %s --check-prefix=OTHER-SECTION
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# OTHER-SECTION: Section Headers:
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# OTHER-SECTION-NEXT: [Nr] Name Type Address Off Size ES Flg Lk Inf Al
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# OTHER-SECTION-NEXT: [ 0] NULL 0000000000000000 000000 000000 00 0 0 0
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# OTHER-SECTION-NEXT: [ 1] foo PROGBITS 0000000000000000 000040 000000 00 0 0 0
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# OTHER-SECTION-NEXT: [ 2] .strtab STRTAB 0000000000000000 000040 000001 00 0 0 1
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# OTHER-SECTION-NEXT: [ 3] .shstrtab STRTAB 0000000000000000 000041 000017 00 0 0 1
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_REL
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Machine: EM_X86_64
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Sections:
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- Type: SHT_NULL
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Name: ''
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Flags: [ ]
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AddressAlign: 0x0
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Size: 0x0
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EntSize: 0x0
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Link: 0
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- Type: SHT_PROGBITS
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Name: 'foo'
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## Check we report an error if null section sh_link field refers to an unknown section.
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# RUN: not yaml2obj --docnum=6 %s -o %t6 2>&1 | FileCheck %s --check-prefix=CASE4
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# CASE4: error: unknown section referenced: '.foo' by YAML section ''
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_REL
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Machine: EM_X86_64
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Sections:
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- Type: SHT_NULL
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Link: .foo
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## Check that null section fields are set to zero, if they are unspecified.
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# RUN: yaml2obj --docnum=7 %s -o %t7
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# RUN: llvm-readelf --sections %t7 | FileCheck %s --check-prefix=DEFAULT
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_REL
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Machine: EM_X86_64
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Sections:
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- Type: SHT_NULL
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## Check we do not crash if we have more than one SHT_NULL section.
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# RUN: yaml2obj --docnum=8 %s -o %t8
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# RUN: llvm-readelf --sections %t8 | FileCheck %s --check-prefix=MULTIPLE
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# MULTIPLE: Section Headers:
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# MULTIPLE-NEXT: [Nr] Name Type Address Off Size ES Flg Lk Inf Al
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# MULTIPLE-NEXT: [ 0] NULL 0000000000000000 000000 000000 00 0 0 0
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# MULTIPLE-NEXT: [ 1] .foo NULL 0000000000000123 000040 000020 10 A 1 2 0
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_REL
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Machine: EM_X86_64
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Sections:
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- Type: SHT_NULL
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- Type: SHT_NULL
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Name: .foo
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Flags: [ SHF_ALLOC ]
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Size: 0x20
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EntSize: 0x10
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Link: 1
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Info: 2
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Address: 0x123
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## Check we can override the sh_offset/sh_size fields of the first SHT_NULL section if requested.
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# RUN: yaml2obj --docnum=9 %s -o %t9
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# RUN: llvm-readelf --sections %t9 | FileCheck %s --check-prefix=OVERRIDE
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# OVERRIDE: Section Headers:
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# OVERRIDE-NEXT: [Nr] Name Type Address Off Size ES Flg Lk Inf Al
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# OVERRIDE-NEXT: [ 0] NULL 0000000000000000 000007 000008 00 0 0 0
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_REL
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Machine: EM_X86_64
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Sections:
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- Type: SHT_NULL
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Size: 0x2
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ShOffset: 0x7
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ShSize: 0x8
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