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llvm-for-llvmta/test/tools/llvm-objcopy/ELF/preserve-segment-contents.test

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2022-04-25 10:02:23 +02:00
# We want to preserve areas in segments that are not covered by section headers.
# This test shows that we do this for areas at the start of a segment, between
# sections in a segment, and after all sections in a segment.
# To create inputs with arbitrary data in segments, not covered by sections, we
# use yaml2obj to create segments with sections covering all areas, then remove
# some sections in those segments, and finally write over the areas of the
# removed sections using python.
# blob* sections are the sections that will be removed to create unlabelled
# areas and then overwritten with data to show we preserve the data.
# RUN: yaml2obj %s -o %t.base
# RUN: llvm-objcopy %t.base %t.stripped --regex -R blob.*
# Show that the removal leaves the bytes as zeroes, as desired, for all our
# test cases.
# RUN: od -t x1 -j 0x2000 -N 28 %t.stripped | FileCheck %s --ignore-case --check-prefix=CHECK1 -DPATTERN="00 00 00 00"
# RUN: od -t x1 -j 0x2100 -N 12 %t.stripped | FileCheck %s --ignore-case --check-prefix=CHECK2 -DPATTERN="00 00 00 00"
# RUN: od -t x1 -j 0x2200 -N 4 %t.stripped | FileCheck %s --ignore-case --check-prefix=CHECK3 -DPATTERN="00 00 00 00"
# RUN: od -t x1 -j 0x2300 -N 12 %t.stripped | FileCheck %s --ignore-case --check-prefix=CHECK4 -DPATTERN="00 00 00 00"
# RUN: od -t x1 -j 0x3000 -N 68 %t.stripped | FileCheck %s --ignore-case --check-prefix=CHECK5 -DPATTERN="00 00 00 00"
# RUN: od -t x1 -j 0x4000 -N 60 %t.stripped | FileCheck %s --ignore-case --check-prefix=CHECK6 -DPATTERN="00 00 00 00"
# RUN: od -t x1 -j 0x5000 -N 60 %t.stripped | FileCheck %s --ignore-case --check-prefix=CHECK7 -DPATTERN="00 00 00 00"
# RUN: cp %t.stripped %t.in
# RUN: echo "with open('%/t.in', 'rb+') as input:" > %t.py
# RUN: echo " for offset in [" >> %t.py
# RUN: echo " 0x2000, 0x2008, 0x200C, 0x2018, 0x2104, 0x2300," >> %t.py
# RUN: echo " 0x3008, 0x3010, 0x3018, 0x3020, 0x3028, 0x302C, 0x3034, 0x303C," >> %t.py
# RUN: echo " 0x4000, 0x4008, 0x4010, 0x4014, 0x401C, 0x4024, 0x4034," >> %t.py
# RUN: echo " 0x5000, 0x5008, 0x5010, 0x501C, 0x5024, 0x502C, 0x5030, 0x5038]:" >> %t.py
# RUN: echo " input.seek(offset)" >> %t.py
# RUN: echo " input.write(bytearray.fromhex('DEADBEEF'))" >> %t.py
# RUN: %python %t.py
# RUN: llvm-objcopy %t.in %t.out
# RUN: od -t x1 -j 0x2000 -N 28 %t.out | FileCheck %s --ignore-case --check-prefix=CHECK1 -DPATTERN="de ad be ef"
# RUN: od -t x1 -j 0x2100 -N 12 %t.out | FileCheck %s --ignore-case --check-prefix=CHECK2 -DPATTERN="de ad be ef"
# RUN: od -t x1 -j 0x2200 -N 4 %t.out | FileCheck %s --ignore-case --check-prefix=CHECK3 -DPATTERN="de ad be ef"
# RUN: od -t x1 -j 0x2300 -N 12 %t.out | FileCheck %s --ignore-case --check-prefix=CHECK4 -DPATTERN="de ad be ef"
# RUN: od -t x1 -j 0x3000 -N 68 %t.out | FileCheck %s --ignore-case --check-prefix=CHECK5 -DPATTERN="de ad be ef"
# RUN: od -t x1 -j 0x4000 -N 60 %t.out | FileCheck %s --ignore-case --check-prefix=CHECK6 -DPATTERN="de ad be ef"
# RUN: od -t x1 -j 0x5000 -N 60 %t.out | FileCheck %s --ignore-case --check-prefix=CHECK7 -DPATTERN="de ad be ef"
# CHECK1: [[PATTERN]] 11 22 33 44 [[PATTERN]] [[PATTERN]]
# CHECK1-NEXT: 00 00 00 00 55 66 77 88 [[PATTERN]]
# CHECK2: 99 00 aa bb [[PATTERN]] cc dd ee ff
# CHECK3: fe fe fe fe
# CHECK4: [[PATTERN]] 00 00 00 00 00 00 00 00
# CHECK5: ff ff ee ee dd dd cc cc [[PATTERN]] bb bb aa aa
# CHECK5-NEXT: [[PATTERN]] 00 00 99 99 [[PATTERN]] 88 88 77 77
# CHECK5-NEXT: [[PATTERN]] 66 66 55 55 [[PATTERN]] [[PATTERN]]
# CHECK5-NEXT: 44 44 33 33 [[PATTERN]] 22 22 11 11 [[PATTERN]]
# CHECK5-NEXT: 00 11 22 33
# CHECK6: [[PATTERN]] 44 55 66 77 [[PATTERN]] 88 99 aa bb
# CHECK6-NEXT: [[PATTERN]] [[PATTERN]] cc dd ee ff [[PATTERN]]
# CHECK6-NEXT: ff ee dd cc [[PATTERN]] bb aa 99 88 77 66 55 44
# CHECK6-NEXT: 33 22 11 00 [[PATTERN]] 11 11 11 11
# CHECK7: [[PATTERN]] 12 34 56 78 [[PATTERN]] 90 ab cd ef
# CHECK7-NEXT: [[PATTERN]] fe dc ba 09 87 65 43 21 [[PATTERN]]
# CHECK7-NEXT: 22 22 22 22 [[PATTERN]] 33 33 33 33 [[PATTERN]]
# CHECK7-NEXT: [[PATTERN]] 44 44 44 44 [[PATTERN]]
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Machine: EM_X86_64
Sections:
- Name: blob1
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x2000
AddressAlign: 0x2000
- Name: section1
Type: SHT_PROGBITS
Address: 0x2004
Content: '11223344'
- Name: blob2
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x2008
- Name: section2
Type: SHT_NOBITS
Size: 4
Address: 0x200C
- Name: blob3
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x2010
- Name: section3
Type: SHT_PROGBITS
Content: '55667788'
Address: 0x2014
- Name: blob4
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x2018
- Name: section4
Type: SHT_PROGBITS
Content: '9900aabb'
Address: 0x2100
AddressAlign: 0x100
- Name: blob5
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x2104
- Name: section5
Type: SHT_PROGBITS
Address: 0x2108
Content: 'ccddeeff'
- Name: section6
Type: SHT_PROGBITS
Content: 'fefefefe'
Address: 0x2200
AddressAlign: 0x100
- Name: blob6
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x2300
AddressAlign: 0x100
- Name: sectionA
Type: SHT_PROGBITS
Content: 'ffffeeee'
Address: 0x3000
AddressAlign: 0x1000
- Name: sectionB
Type: SHT_PROGBITS
Content: 'ddddcccc'
Address: 0x3004
- Name: blobA
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x3008
- Name: sectionC
Type: SHT_PROGBITS
Content: 'bbbbaaaa'
Address: 0x300C
- Name: blobB
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x3010
- Name: sectionD
Type: SHT_PROGBITS
Content: '00009999'
Address: 0x3014
- Name: blobC
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x3018
- Name: sectionE
Type: SHT_PROGBITS
Content: '88887777'
Address: 0x301C
- Name: blobD
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x3020
- Name: sectionF
Type: SHT_PROGBITS
Content: '66665555'
Address: 0x3024
- Name: blobE
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x3028
- Name: blobF
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x302C
- Name: sectionG
Type: SHT_PROGBITS
Content: '44443333'
Address: 0x3030
- Name: blobG
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x3034
- Name: sectionH
Type: SHT_PROGBITS
Content: '22221111'
Address: 0x3038
- Name: blobH
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x303C
- Name: sectionI
Type: SHT_PROGBITS
Content: '00112233'
Address: 0x3040
- Name: blobz
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x4000
AddressAlign: 0x1000
- Name: sectionz
Type: SHT_PROGBITS
Content: '44556677'
Address: 0x4004
- Name: bloby
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x4008
- Name: sectiony
Type: SHT_PROGBITS
Content: '8899aabb'
Address: 0x400C
- Name: blobx
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x4010
- Name: blobw
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x4014
- Name: sectionx
Type: SHT_PROGBITS
Content: 'ccddeeff'
Address: 0x4018
- Name: blobv
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x401C
- Name: sectionw
Type: SHT_PROGBITS
Content: 'ffeeddcc'
Address: 0x4020
- Name: blobu
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x4024
- Name: sectionv
Type: SHT_PROGBITS
Content: 'bbaa9988'
Address: 0x4028
- Name: sectionu
Type: SHT_PROGBITS
Content: '77665544'
Address: 0x402C
- Name: sectiont
Type: SHT_PROGBITS
Content: '33221100'
Address: 0x4030
- Name: blobt
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x4034
- Name: sections
Type: SHT_PROGBITS
Content: '11111111'
Address: 0x4038
- Name: bloba
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x5000
AddressAlign: 0x1000
- Name: sectiona
Type: SHT_PROGBITS
Content: '12345678'
Address: 0x5004
- Name: blobb
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x5008
- Name: sectionb
Type: SHT_PROGBITS
Content: '90abcdef'
Address: 0x500C
- Name: blobc
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x5010
- Name: sectionc
Type: SHT_PROGBITS
Content: 'fedcba09'
Address: 0x5014
- Name: sectiond
Type: SHT_PROGBITS
Content: '87654321'
Address: 0x5018
- Name: blobd
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x501C
- Name: sectione
Type: SHT_PROGBITS
Content: '22222222'
Address: 0x5020
- Name: blobe
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x5024
- Name: sectionf
Type: SHT_PROGBITS
Content: '33333333'
Address: 0x5028
- Name: blobf
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x502C
- Name: blobg
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x5030
- Name: sectiong
Type: SHT_PROGBITS
Content: '44444444'
Address: 0x5034
- Name: blobh
Type: SHT_PROGBITS
Content: 'abbababa'
Address: 0x5038
ProgramHeaders:
# First segment has unlabelled space at start and end.
- Type: 0x6ABCDEF0 # Non-specific segment type.
VAddr: 0x2000
Align: 0x2000
FirstSec: blob1
LastSec: blob4
# Second segment has sections at start and end.
- Type: 0x6ABCDEF0
VAddr: 0x2100
Align: 0x100
FirstSec: section4
LastSec: section5
# Third segment is all covered by a section.
- Type: 0x6ABCDEF0
VAddr: 0x2200
Align: 0x100
FirstSec: section6
LastSec: section6
# Fourth segment has no sections (after removing blob headers).
- Type: 0x6ABCDEF0
VAddr: 0x2300
Align: 0x100
FirstSec: blob6
LastSec: blob6
# Fifth segment is empty.
- Type: 0x6ABCDEF0
VAddr: 0x2308
Offset: 0x2308
# The next few segments test behaviour of fully nested segments.
# Sixth segment is the "parent" segment.
- Type: 0x6ABCDEF0
VAddr: 0x3000
Align: 0x1000
FirstSec: sectionA
LastSec: sectionI
# Seventh segment is empty and nested.
- Type: 0x6ABCDEF0
VAddr: 0x3002
Offset: 0x3002
# Eighth segment contains only a section and is nested.
- Type: 0x6ABCDEF0
VAddr: 0x3004
FirstSec: sectionB
LastSec: sectionB
# Ninth segment contains only unlabelled space and is nested.
- Type: 0x6ABCDEF0
VAddr: 0x3008
FirstSec: blobA
LastSec: blobA
# Tenth segment contains two sections with space between and is nested.
- Type: 0x6ABCDEF0
VAddr: 0x300C
FirstSec: sectionC
LastSec: sectionD
# Eleventh segment contains two sections with space between and at ends and is nested.
- Type: 0x6ABCDEF0
VAddr: 0x3018
FirstSec: blobC
LastSec: blobE
# Twelfth segment contains one section with space at ends adjacent to space in parent segment.
- Type: 0x6ABCDEF0
VAddr: 0x302E
Offset: 0x302E
FileSize: 8
FirstSec: sectionG
LastSec: sectionG
# Thirteenth segment contains overlaps sections at either end in parent segment.
- Type: 0x6ABCDEF0
VAddr: 0x303A
Offset: 0x303A
FileSize: 0x8
FirstSec: blobH
LastSec: blobH
# The next batch of segments are segments that only partially overlap other segments.
# Segment14: |-unlabelled-|-Sec-|
# Segment15: |--|-Sec-|-unlabelled-|
- Type: 0x6ABCDEF0
VAddr: 0x4000
FirstSec: blobz
LastSec: sectionz
- Type: 0x6ABCDEF0
VAddr: 0x4002
Offset: 0x4002
FirstSec: sectionz
LastSec: bloby
# Segment16: |-Sec-|--|
# Segment17: |--|----unlabelled---|
- Type: 0x6ABCDEF0
VAddr: 0x400C
FileSize: 6
FirstSec: sectiony
LastSec: sectiony
- Type: 0x6ABCDEF0
VAddr: 0x400E
Offset: 0x400E
FirstSec: blobx
LastSec: blobx
# Segment18: |-unlabelled-|-Sec-|
# Segment19: |-Sec-|-unlabelled-|
- Type: 0x6ABCDEF0
VAddr: 0x4014
FirstSec: blobw
LastSec: sectionx
- Type: 0x6ABCDEF0
VAddr: 0x4018
FirstSec: sectionx
LastSec: blobv
# Segment20: |-Sec-|
# Segment21: |--|-unlabelled-|-Sec-|
- Type: 0x6ABCDEF0
VAddr: 0x4020
FirstSec: sectionw
LastSec: sectionw
- Type: 0x6ABCDEF0
VAddr: 0x4022
Offset: 0x4022
FirstSec: blobu
LastSec: sectionv
# Segment22: |-Sec-|
# Segment23: |--|-Sec-|
- Type: 0x6ABCDEF0
VAddr: 0x402C
FirstSec: sectionu
LastSec: sectionu
- Type: 0x6ABCDEF0
VAddr: 0x402E
Offset: 0x402E
FirstSec: sectiont
LastSec: sectiont
# Segment24: |-unlabelled-|--|
# Segment25: |--Sec--|
- Type: 0x6ABCDEF0
VAddr: 0x4034
FileSize: 6
FirstSec: blobt
LastSec: blobt
- Type: 0x6ABCDEF0
VAddr: 0x4038
FirstSec: sections
LastSec: sections
# The next batch of segments represent groups of three nested/overlapping segments,
# with one parent segment containing two overlapping segments.
# Segment26: |-unlabelled-|-Sec-|-unlabelled-|
# Segment27: |------------|--|
# Segment28: |-Sec-|------------|
- Type: 0x6ABCDEF0
VAddr: 0x5000
Align: 0x1000
FirstSec: bloba
LastSec: blobb
- Type: 0x6ABCDEF0
VAddr: 0x5000
FileSize: 6
FirstSec: bloba
LastSec: bloba
- Type: 0x6ABCDEF0
VAddr: 0x5004
FirstSec: sectiona
LastSec: blobb
# Segment29: |-Sec-|-unlabelled-|-Sec-|
# Segment30: |-Sec-|--------|
# Segment31: |---------|-Sec-|
- Type: 0x6ABCDEF0
VAddr: 0x500C
FirstSec: sectionb
LastSec: sectionc
- Type: 0x6ABCDEF0
VAddr: 0x500C
FileSize: 7
FirstSec: sectionb
LastSec: sectionb
- Type: 0x6ABCDEF0
VAddr: 0x5011
Offset: 0x5011
FirstSec: sectionc
LastSec: sectionc
# Segment32: |-Sec-|-unlabelled-|-Sec-|
# Segment33: |-Sec-|------------|
# Segment34: |------------|-Sec-|
- Type: 0x6ABCDEF0
VAddr: 0x5018
FirstSec: sectiond
LastSec: sectione
- Type: 0x6ABCDEF0
VAddr: 0x5018
FirstSec: sectiond
LastSec: blobd
- Type: 0x6ABCDEF0
VAddr: 0x501C
FirstSec: blobd
LastSec: sectione
# Segment35: |-unlabelled-|-Sec-|-unlabelled-|
# Segment36: |------------|-Sec-|
# Segment37: |-Sec-|------------|
- Type: 0x6ABCDEF0
VAddr: 0x5024
FirstSec: blobe
LastSec: blobf
- Type: 0x6ABCDEF0
VAddr: 0x5024
FirstSec: blobe
LastSec: sectionf
- Type: 0x6ABCDEF0
VAddr: 0x5028
FirstSec: sectionf
LastSec: blobf
# Segment38: |-unlabelled-|-Sec-|-unlabelled-|
# Segment39: |------------|---|
# Segment40: |---|------------|
- Type: 0x6ABCDEF0
VAddr: 0x5030
FirstSec: blobg
LastSec: blobh
- Type: 0x6ABCDEF0
VAddr: 0x5030
FileSize: 7
FirstSec: blobg
LastSec: blobg
- Type: 0x6ABCDEF0
VAddr: 0x5035
Offset: 0x5035
FirstSec: blobh
LastSec: blobh