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280 lines
11 KiB
280 lines
11 KiB
## Check we can use "SectionHeaderTable" tag to reorder section header entries.
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## This is a general test that has sections with unique prefixes, a fill and a
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## section without the unique prefix. The section header table describes sections
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## in the same order they are listed in the YAML.
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# RUN: yaml2obj %s --docnum=1 -o %t1 -DSEC1=".section (1)" -DSEC2=".section (2)" -DSEC3=".section.foo"
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# RUN: llvm-readelf --section-headers %t1 | FileCheck %s --check-prefix=NO-OP
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# NO-OP: Section Headers:
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# NO-OP-NEXT: [Nr] Name Type Address Off Size ES Flg Lk Inf Al
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# NO-OP-NEXT: [ 0] NULL 0000000000000000 000000 000000 00 0 0 0
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# NO-OP-NEXT: [ 1] .section PROGBITS 0000000000000000 000040 000010 00 0 0 0
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# NO-OP-NEXT: [ 2] .section PROGBITS 0000000000000000 000050 000020 00 0 0 0
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# NO-OP-NEXT: [ 3] .section.foo PROGBITS 0000000000000000 0000a0 000040 00 0 0 0
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# NO-OP-NEXT: [ 4] .strtab STRTAB 0000000000000000 0000e0 000001 00 0 0 1
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# NO-OP-NEXT: [ 5] .shstrtab STRTAB 0000000000000000 0000e1 000029 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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Sections:
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- Name: .section (1)
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Type: SHT_PROGBITS
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Size: 0x10
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- Name: .section (2)
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Type: SHT_PROGBITS
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Size: 0x20
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- Type: Fill
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Name: .filler
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Size: 0x30
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Pattern: ""
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- Name: .section.foo
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Type: SHT_PROGBITS
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Size: 0x40
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SectionHeaderTable:
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Sections:
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- Name: [[SEC1]]
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- Name: [[SEC2]]
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- Name: [[SEC3]]
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- Name: .strtab
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- Name: .shstrtab
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## Show we are able to reorder sections.
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# RUN: yaml2obj %s -o %t2 -DSEC3=".section (1)" -DSEC2=".section (2)" -DSEC1=".section.foo"
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# RUN: llvm-readelf --section-headers %t2 | FileCheck %s --check-prefix=REORDERED
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# REORDERED: Section Headers:
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# REORDERED-NEXT: [Nr] Name Type Address Off Size ES Flg Lk Inf Al
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# REORDERED-NEXT: [ 0] NULL 0000000000000000 000000 000000 00 0 0 0
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# REORDERED-NEXT: [ 1] .section.foo PROGBITS 0000000000000000 0000a0 000040 00 0 0 0
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# REORDERED-NEXT: [ 2] .section PROGBITS 0000000000000000 000050 000020 00 0 0 0
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# REORDERED-NEXT: [ 3] .section PROGBITS 0000000000000000 000040 000010 00 0 0 0
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# REORDERED-NEXT: [ 4] .strtab STRTAB 0000000000000000 0000e0 000001 00 0 0 1
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# REORDERED-NEXT: [ 5] .shstrtab STRTAB 0000000000000000 0000e1 000029 00 0 0 1
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## Show we report proper errors when the section header description:
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## a) contains a repeated section name.
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## b) omits any section that exists.
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## c) contains a non-existent section.
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# RUN: not yaml2obj %s -o /dev/null -DSEC1=".section.foo" -DSEC2="unknown" -DSEC3=".section.foo" 2>&1 | \
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# RUN: FileCheck %s --check-prefix=ERR1
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# d) contains a repeated implicit section name.
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# e) contains a fill name.
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# RUN: not yaml2obj %s -o /dev/null -DSEC1=".strtab" -DSEC2=".shstrtab" -DSEC3=".filler" 2>&1 | \
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# RUN: FileCheck %s --check-prefix=ERR2
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# ERR1: error: repeated section name: '.section.foo' in the section header description
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# ERR1-NEXT: error: section '.section (1)' should be present in the 'Sections' or 'Excluded' lists
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# ERR1-NEXT: error: section '.section (2)' should be present in the 'Sections' or 'Excluded' lists
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# ERR1-NEXT: error: section header contains undefined section 'unknown'
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# ERR2: error: repeated section name: '.strtab' in the section header description
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# ERR2-NEXT: error: repeated section name: '.shstrtab' in the section header description
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# ERR2-NEXT: error: section '.section (1)' should be present in the 'Sections' or 'Excluded' lists
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# ERR2-NEXT: error: section '.section (2)' should be present in the 'Sections' or 'Excluded' lists
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# ERR2-NEXT: error: section '.section.foo' should be present in the 'Sections' or 'Excluded' lists
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# ERR2-NEXT: error: section header contains undefined section '.filler'
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## Check that when the an empty "Sections" list is used, we do not create an empty section header table.
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# RUN: not yaml2obj %s --docnum=2 -o /dev/null 2>&1 | FileCheck %s --check-prefix=EMPTY-SECTIONS
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# EMPTY-SECTIONS: error: section '.foo' should be present in the 'Sections' or 'Excluded' lists
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# EMPTY-SECTIONS-NEXT: error: section '.strtab' should be present in the 'Sections' or 'Excluded' lists
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# EMPTY-SECTIONS-NEXT: error: section '.shstrtab' should be present in the 'Sections' or 'Excluded' lists
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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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Sections:
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- Name: .foo
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Type: SHT_PROGBITS
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SectionHeaderTable:
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Sections: []
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## Test that we are able to use "NoHeaders" property to produce an empty section header table.
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# RUN: yaml2obj %s --docnum=3 -DNOHEADERS=true -o %t3.1
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# RUN: llvm-readelf --file-headers %t3.1 | FileCheck %s --check-prefix=NO-HEADERS-TRUE
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# NO-HEADERS-TRUE: Start of section headers: 0 (bytes into file)
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# NO-HEADERS-TRUE: Size of section headers: 64 (bytes)
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# NO-HEADERS-TRUE: Number of section headers: 0
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# NO-HEADERS-TRUE: Section header string table index: 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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Sections:
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- Name: .foo
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Type: SHT_PROGBITS
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SectionHeaderTable:
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NoHeaders: [[NOHEADERS]]
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## Test that we are able to set NoHeaders to false. In this case the tool produces an output
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## as if there were no `SectionHeaderTable` key at all.
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# RUN: yaml2obj %s --docnum=3 -DNOHEADERS=false -o %t3.2
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# RUN: llvm-readelf --file-headers --sections %t3.2 | FileCheck %s --check-prefix=NO-HEADERS-FALSE
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# NO-HEADERS-FALSE: Start of section headers: 96 (bytes into file)
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# NO-HEADERS-FALSE: Size of section headers: 64 (bytes)
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# NO-HEADERS-FALSE: Number of section headers: 4
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# NO-HEADERS-FALSE: Section header string table index: 3
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# NO-HEADERS-FALSE: Section Headers:
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# NO-HEADERS-FALSE-NEXT: [Nr] Name Type Address Off Size ES Flg Lk Inf Al
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# NO-HEADERS-FALSE-NEXT: [ 0] NULL 0000000000000000 000000 000000 00 0 0 0
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# NO-HEADERS-FALSE-NEXT: [ 1] .foo PROGBITS 0000000000000000 000040 000000 00 0 0 0
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# NO-HEADERS-FALSE-NEXT: [ 2] .strtab STRTAB 0000000000000000 000040 000001 00 0 0 1
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# NO-HEADERS-FALSE-NEXT: [ 3] .shstrtab STRTAB 0000000000000000 000041 000018 00 0 0 1
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## Check we do not allow using "Sections" together with "NoHeaders".
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# RUN: not yaml2obj %s --docnum=4 -DNOHEADERS=true -o /dev/null 2>&1 | FileCheck %s --check-prefix=SECTIONS-NO-HEADERS
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# RUN: not yaml2obj %s --docnum=4 -DNOHEADERS=false -o /dev/null 2>&1 | FileCheck %s --check-prefix=SECTIONS-NO-HEADERS
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# SECTIONS-NO-HEADERS: error: NoHeaders can't be used together with Sections/Excluded
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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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Sections:
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- Name: .foo
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Type: SHT_PROGBITS
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SectionHeaderTable:
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Sections: []
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NoHeaders: [[NOHEADERS]]
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## Check that we do not allow an empty SectionHeaderTable tag and suggest to use an explicit syntax instead.
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# RUN: not yaml2obj %s --docnum=5 -DVAL="" -o /dev/null 2>&1 | FileCheck %s --check-prefix=NO-VALUE
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# NO-VALUE: SectionHeaderTable can't be empty. Use 'NoHeaders' key to drop the section header table
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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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Sections:
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- Name: .foo
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Type: SHT_PROGBITS
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SectionHeaderTable: [[VAL]]
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## An empty mapping is also not allowed for the SectionHeaderTable tag.
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# RUN: not yaml2obj %s --docnum=5 -DVAL="[]" -o /dev/null 2>&1 | FileCheck %s --check-prefix=NOT-A-MAPPING
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# NOT-A-MAPPING: error: not a mapping
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## Test that we are still able to override e_shoff, e_shnum and e_shstrndx
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## fields even when we do not produce section headers.
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# RUN: yaml2obj %s --docnum=6 -o %t4
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# RUN: not llvm-readelf --file-headers %t4 | FileCheck %s --check-prefix=NO-HEADERS-OVERRIDE
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# NO-HEADERS-OVERRIDE: Start of section headers: 2 (bytes into file)
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# NO-HEADERS-OVERRIDE: Number of section headers: 3
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# NO-HEADERS-OVERRIDE: Section header string table index: 4
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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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EShOff: 0x2
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EShNum: 0x3
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EShStrNdx: 0x4
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SectionHeaderTable:
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NoHeaders: true
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## Check that section indices are updated properly in other places when we
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## reorder sections in the section header table.
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# RUN: yaml2obj %s --docnum=7 -o %t5 -DSEC1=".foo" -DSEC2=".bar"
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# RUN: llvm-readelf --section-headers --symbols %t5 | FileCheck %s --check-prefix=INDICES-A
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# RUN: yaml2obj %s --docnum=7 -o %t6 -DSEC2=".foo" -DSEC1=".bar"
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# RUN: llvm-readelf --section-headers --symbols %t6 | FileCheck %s --check-prefix=INDICES-B
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# INDICES-A: [Nr] Name Type Address Off Size ES Flg Lk
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# INDICES-A: [ 1] .foo PROGBITS 0000000000000000 000040 000000 00 0
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# INDICES-A-NEXT: [ 2] .bar PROGBITS 0000000000000000 000040 000000 00 0
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# INDICES-A-NEXT: [ 3] .another.1 PROGBITS 0000000000000000 000040 000000 00 1
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# INDICES-A-NEXT: [ 4] .another.2 PROGBITS 0000000000000000 000040 000000 00 2
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# INDICES-A: Num: Value Size Type Bind Vis Ndx Name
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# INDICES-A: 1: 0000000000000000 0 NOTYPE LOCAL DEFAULT 1 foo
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# INDICES-A-NEXT: 2: 0000000000000000 0 NOTYPE LOCAL DEFAULT 2 bar
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# INDICES-B: [ 1] .bar PROGBITS 0000000000000000 000040 000000 00 0
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# INDICES-B-NEXT: [ 2] .foo PROGBITS 0000000000000000 000040 000000 00 0
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# INDICES-B-NEXT: [ 3] .another.1 PROGBITS 0000000000000000 000040 000000 00 2
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# INDICES-B-NEXT: [ 4] .another.2 PROGBITS 0000000000000000 000040 000000 00 1
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# INDICES-B: Num: Value Size Type Bind Vis Ndx Name
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# INDICES-B: 1: 0000000000000000 0 NOTYPE LOCAL DEFAULT 2 foo
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# INDICES-B-NEXT: 2: 0000000000000000 0 NOTYPE LOCAL DEFAULT 1 bar
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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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Sections:
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- Name: .foo
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Type: SHT_PROGBITS
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- Name: .bar
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Type: SHT_PROGBITS
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- Name: .another.1
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Link: .foo
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Type: SHT_PROGBITS
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- Name: .another.2
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Link: .bar
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Type: SHT_PROGBITS
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SectionHeaderTable:
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Sections:
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- Name: [[SEC1]]
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- Name: [[SEC2]]
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- Name: .another.1
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- Name: .another.2
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- Name: .symtab
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- Name: .strtab
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- Name: .shstrtab
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Symbols:
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- Name: foo
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Section: .foo
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- Name: bar
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Section: .bar
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## Check that when "NoHeaders" is set to "true" then we don't emit
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## the .shstrtab section implicitly and don't write the data of the
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## section header table to the file.
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# RUN: yaml2obj %s --docnum=8 -o %t8
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# RUN: wc -c < %t8 | FileCheck %s --check-prefix=SIZE
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# SIZE: 511{{$}}
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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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Sections:
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## We don't want any implicit sections to be added after the .foo section,
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## so add them here explicitly.
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- Name: .strtab
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Type: SHT_STRTAB
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## Nothing should be emitted after the following section.
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## So we know that the expected file size is 0x100 + 0xFF == 0x1FF == 511.
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- Name: .foo
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Type: SHT_PROGBITS
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## Unaligned size. Used to make sure that we don't try to align the file offset
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## for writing the section header table.
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Size: 0xFF
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Offset: 0x100
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SectionHeaderTable:
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NoHeaders: true
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