| ## Check we can use "SectionHeaderTable" tag to reorder section header entries. |
| |
| ## This is a general test that has sections with unique prefixes, a fill and a |
| ## section without the unique prefix. The section header table describes sections |
| ## in the same order they are listed in the YAML. |
| # RUN: yaml2obj %s --docnum=1 -o %t1 -DSEC1=".section (1)" -DSEC2=".section (2)" -DSEC3=".section.foo" |
| # RUN: llvm-readelf --section-headers %t1 | FileCheck %s --check-prefix=NO-OP |
| |
| # NO-OP: Section Headers: |
| # NO-OP-NEXT: [Nr] Name Type Address Off Size ES Flg Lk Inf Al |
| # NO-OP-NEXT: [ 0] NULL 0000000000000000 000000 000000 00 0 0 0 |
| # NO-OP-NEXT: [ 1] .section PROGBITS 0000000000000000 000040 000010 00 0 0 0 |
| # NO-OP-NEXT: [ 2] .section PROGBITS 0000000000000000 000050 000020 00 0 0 0 |
| # NO-OP-NEXT: [ 3] .section.foo PROGBITS 0000000000000000 0000a0 000040 00 0 0 0 |
| # NO-OP-NEXT: [ 4] .strtab STRTAB 0000000000000000 0000e0 000001 00 0 0 1 |
| # NO-OP-NEXT: [ 5] .shstrtab STRTAB 0000000000000000 0000e1 000029 00 0 0 1 |
| |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_REL |
| Sections: |
| - Name: .section (1) |
| Type: SHT_PROGBITS |
| Size: 0x10 |
| - Name: .section (2) |
| Type: SHT_PROGBITS |
| Size: 0x20 |
| - Type: Fill |
| Name: .filler |
| Size: 0x30 |
| Pattern: "" |
| - Name: .section.foo |
| Type: SHT_PROGBITS |
| Size: 0x40 |
| - Type: SectionHeaderTable |
| Sections: |
| - Name: [[SEC1]] |
| - Name: [[SEC2]] |
| - Name: [[SEC3]] |
| - Name: .strtab |
| - Name: .shstrtab |
| |
| ## Show we are able to reorder sections. |
| # RUN: yaml2obj %s -o %t2 -DSEC3=".section (1)" -DSEC2=".section (2)" -DSEC1=".section.foo" |
| # RUN: llvm-readelf --section-headers %t2 | FileCheck %s --check-prefix=REORDERED |
| |
| # REORDERED: Section Headers: |
| # REORDERED-NEXT: [Nr] Name Type Address Off Size ES Flg Lk Inf Al |
| # REORDERED-NEXT: [ 0] NULL 0000000000000000 000000 000000 00 0 0 0 |
| # REORDERED-NEXT: [ 1] .section.foo PROGBITS 0000000000000000 0000a0 000040 00 0 0 0 |
| # REORDERED-NEXT: [ 2] .section PROGBITS 0000000000000000 000050 000020 00 0 0 0 |
| # REORDERED-NEXT: [ 3] .section PROGBITS 0000000000000000 000040 000010 00 0 0 0 |
| # REORDERED-NEXT: [ 4] .strtab STRTAB 0000000000000000 0000e0 000001 00 0 0 1 |
| # REORDERED-NEXT: [ 5] .shstrtab STRTAB 0000000000000000 0000e1 000029 00 0 0 1 |
| |
| ## Show we report proper errors when the section header description: |
| ## a) contains a repeated section name. |
| ## b) omits any section that exists. |
| ## c) contains a non-existent section. |
| # RUN: not yaml2obj %s -o /dev/null -DSEC1=".section.foo" -DSEC2="unknown" -DSEC3=".section.foo" 2>&1 | \ |
| # RUN: FileCheck %s --check-prefix=ERR1 |
| # d) contains a repeated implicit section name. |
| # e) contains a fill name. |
| # RUN: not yaml2obj %s -o /dev/null -DSEC1=".strtab" -DSEC2=".shstrtab" -DSEC3=".filler" 2>&1 | \ |
| # RUN: FileCheck %s --check-prefix=ERR2 |
| |
| # ERR1: error: repeated section name: '.section.foo' in the section header description |
| # ERR1-NEXT: error: section '.section (1)' should be present in the 'Sections' or 'Excluded' lists |
| # ERR1-NEXT: error: section '.section (2)' should be present in the 'Sections' or 'Excluded' lists |
| # ERR1-NEXT: error: section header contains undefined section 'unknown' |
| |
| # ERR2: error: repeated section name: '.strtab' in the section header description |
| # ERR2-NEXT: error: repeated section name: '.shstrtab' in the section header description |
| # ERR2-NEXT: error: section '.section (1)' should be present in the 'Sections' or 'Excluded' lists |
| # ERR2-NEXT: error: section '.section (2)' should be present in the 'Sections' or 'Excluded' lists |
| # ERR2-NEXT: error: section '.section.foo' should be present in the 'Sections' or 'Excluded' lists |
| # ERR2-NEXT: error: section header contains undefined section '.filler' |
| |
| ## Check that when the an empty "Sections" list is used, we do not create an empty section header table. |
| # RUN: not yaml2obj %s --docnum=2 -o /dev/null 2>&1 | FileCheck %s --check-prefix=EMPTY-SECTIONS |
| |
| # EMPTY-SECTIONS: error: section '.foo' should be present in the 'Sections' or 'Excluded' lists |
| # EMPTY-SECTIONS-NEXT: error: section '.strtab' should be present in the 'Sections' or 'Excluded' lists |
| # EMPTY-SECTIONS-NEXT: error: section '.shstrtab' should be present in the 'Sections' or 'Excluded' lists |
| |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_REL |
| Sections: |
| - Name: .foo |
| Type: SHT_PROGBITS |
| - Type: SectionHeaderTable |
| Sections: [] |
| |
| ## Test that we are able to use "NoHeaders" property to produce an empty section header table. |
| # RUN: yaml2obj %s --docnum=3 -DNOHEADERS=true -o %t3.1 |
| # RUN: llvm-readelf --file-headers %t3.1 | FileCheck %s --check-prefix=NO-HEADERS-TRUE |
| |
| # NO-HEADERS-TRUE: Start of section headers: 0 (bytes into file) |
| # NO-HEADERS-TRUE: Size of section headers: 64 (bytes) |
| # NO-HEADERS-TRUE: Number of section headers: 0 |
| # NO-HEADERS-TRUE: Section header string table index: 0 |
| |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_REL |
| Sections: |
| - Name: .foo |
| Type: SHT_PROGBITS |
| - Type: SectionHeaderTable |
| NoHeaders: [[NOHEADERS]] |
| |
| ## Test that we are able to set NoHeaders to false. In this case the tool produces an output |
| ## as if there were no `SectionHeaderTable` key at all. |
| # RUN: yaml2obj %s --docnum=3 -DNOHEADERS=false -o %t3.2 |
| # RUN: llvm-readelf --file-headers --sections %t3.2 | FileCheck %s --check-prefix=NO-HEADERS-FALSE |
| |
| # NO-HEADERS-FALSE: Start of section headers: 96 (bytes into file) |
| # NO-HEADERS-FALSE: Size of section headers: 64 (bytes) |
| # NO-HEADERS-FALSE: Number of section headers: 4 |
| # NO-HEADERS-FALSE: Section header string table index: 3 |
| |
| # NO-HEADERS-FALSE: Section Headers: |
| # NO-HEADERS-FALSE-NEXT: [Nr] Name Type Address Off Size ES Flg Lk Inf Al |
| # NO-HEADERS-FALSE-NEXT: [ 0] NULL 0000000000000000 000000 000000 00 0 0 0 |
| # NO-HEADERS-FALSE-NEXT: [ 1] .foo PROGBITS 0000000000000000 000040 000000 00 0 0 0 |
| # NO-HEADERS-FALSE-NEXT: [ 2] .strtab STRTAB 0000000000000000 000040 000001 00 0 0 1 |
| # NO-HEADERS-FALSE-NEXT: [ 3] .shstrtab STRTAB 0000000000000000 000041 000018 00 0 0 1 |
| |
| ## Check we do not allow using "Sections" together with "NoHeaders". |
| # RUN: not yaml2obj %s --docnum=4 -DNOHEADERS=true -o /dev/null 2>&1 | FileCheck %s --check-prefix=SECTIONS-NO-HEADERS |
| # RUN: not yaml2obj %s --docnum=4 -DNOHEADERS=false -o /dev/null 2>&1 | FileCheck %s --check-prefix=SECTIONS-NO-HEADERS |
| |
| # SECTIONS-NO-HEADERS: error: NoHeaders can't be used together with Offset/Sections/Excluded |
| |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_REL |
| Sections: |
| - Name: .foo |
| Type: SHT_PROGBITS |
| - Type: SectionHeaderTable |
| Sections: [] |
| NoHeaders: [[NOHEADERS]] |
| |
| ## Check that we allow using an empty SectionHeaderTable definition. |
| ## It can be used to emit the default section header table at an arbitrary position. |
| |
| # RUN: yaml2obj %s --docnum=5 -o %t5.novalues |
| # RUN: llvm-readelf --sections %t5.novalues | \ |
| # RUN: FileCheck %s --check-prefix=NO-VALUES |
| |
| ## Check we placed the section header table before the .foo section. |
| |
| # NO-VALUES: There are 4 section headers, starting at offset 0x40: |
| # NO-VALUES: [Nr] Name Type Address Off Size |
| # NO-VALUES: [ 1] .foo PROGBITS 0000000000000000 000140 000000 |
| |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_REL |
| Sections: |
| - Type: SectionHeaderTable |
| - Name: .foo |
| Type: SHT_PROGBITS |
| |
| ## Test that we are still able to override e_shoff, e_shnum and e_shstrndx |
| ## fields even when we do not produce section headers. |
| # RUN: yaml2obj %s --docnum=6 -o %t4 |
| # RUN: not llvm-readelf --file-headers %t4 | FileCheck %s --check-prefix=NO-HEADERS-OVERRIDE |
| |
| # NO-HEADERS-OVERRIDE: Start of section headers: 2 (bytes into file) |
| # NO-HEADERS-OVERRIDE: Number of section headers: 3 |
| # NO-HEADERS-OVERRIDE: Section header string table index: 4 |
| |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_REL |
| EShOff: 0x2 |
| EShNum: 0x3 |
| EShStrNdx: 0x4 |
| Sections: |
| - Type: SectionHeaderTable |
| NoHeaders: true |
| |
| ## Check that section indices are updated properly in other places when we |
| ## reorder sections in the section header table. |
| # RUN: yaml2obj %s --docnum=7 -o %t5 -DSEC1=".foo" -DSEC2=".bar" |
| # RUN: llvm-readelf --section-headers --symbols %t5 | FileCheck %s --check-prefix=INDICES-A |
| # RUN: yaml2obj %s --docnum=7 -o %t6 -DSEC2=".foo" -DSEC1=".bar" |
| # RUN: llvm-readelf --section-headers --symbols %t6 | FileCheck %s --check-prefix=INDICES-B |
| |
| # INDICES-A: [Nr] Name Type Address Off Size ES Flg Lk |
| # INDICES-A: [ 1] .foo PROGBITS 0000000000000000 000040 000000 00 0 |
| # INDICES-A-NEXT: [ 2] .bar PROGBITS 0000000000000000 000040 000000 00 0 |
| # INDICES-A-NEXT: [ 3] .another.1 PROGBITS 0000000000000000 000040 000000 00 1 |
| # INDICES-A-NEXT: [ 4] .another.2 PROGBITS 0000000000000000 000040 000000 00 2 |
| |
| # INDICES-A: Num: Value Size Type Bind Vis Ndx Name |
| # INDICES-A: 1: 0000000000000000 0 NOTYPE LOCAL DEFAULT 1 foo |
| # INDICES-A-NEXT: 2: 0000000000000000 0 NOTYPE LOCAL DEFAULT 2 bar |
| |
| # INDICES-B: [ 1] .bar PROGBITS 0000000000000000 000040 000000 00 0 |
| # INDICES-B-NEXT: [ 2] .foo PROGBITS 0000000000000000 000040 000000 00 0 |
| # INDICES-B-NEXT: [ 3] .another.1 PROGBITS 0000000000000000 000040 000000 00 2 |
| # INDICES-B-NEXT: [ 4] .another.2 PROGBITS 0000000000000000 000040 000000 00 1 |
| |
| # INDICES-B: Num: Value Size Type Bind Vis Ndx Name |
| # INDICES-B: 1: 0000000000000000 0 NOTYPE LOCAL DEFAULT 2 foo |
| # INDICES-B-NEXT: 2: 0000000000000000 0 NOTYPE LOCAL DEFAULT 1 bar |
| |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_REL |
| Sections: |
| - Name: .foo |
| Type: SHT_PROGBITS |
| - Name: .bar |
| Type: SHT_PROGBITS |
| - Name: .another.1 |
| Link: .foo |
| Type: SHT_PROGBITS |
| - Name: .another.2 |
| Link: .bar |
| Type: SHT_PROGBITS |
| - Type: SectionHeaderTable |
| Sections: |
| - Name: [[SEC1]] |
| - Name: [[SEC2]] |
| - Name: .another.1 |
| - Name: .another.2 |
| - Name: .symtab |
| - Name: .strtab |
| - Name: .shstrtab |
| Symbols: |
| - Name: foo |
| Section: .foo |
| - Name: bar |
| Section: .bar |
| |
| ## Check that when "NoHeaders" is set to "true" then we don't emit |
| ## the .shstrtab section implicitly and don't write the data of the |
| ## section header table to the file. |
| |
| # RUN: yaml2obj %s --docnum=8 -o %t8 |
| # RUN: wc -c < %t8 | FileCheck %s --check-prefix=SIZE |
| |
| # SIZE: 511{{$}} |
| |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_REL |
| Sections: |
| ## We don't want any implicit sections to be added after the .foo section, |
| ## so add them here explicitly. |
| - Name: .strtab |
| Type: SHT_STRTAB |
| ## Nothing should be emitted after the following section. |
| ## So we know that the expected file size is 0x100 + 0xFF == 0x1FF == 511. |
| - Name: .foo |
| Type: SHT_PROGBITS |
| ## Unaligned size. Used to make sure that we don't try to align the file offset |
| ## for writing the section header table. |
| Size: 0xFF |
| Offset: 0x100 |
| - Type: SectionHeaderTable |
| NoHeaders: true |
| |
| ## Check we do not allow using "Offset" together with "NoHeaders". |
| # RUN: not yaml2obj %s --docnum=9 -DNOHEADERS=true -o /dev/null 2>&1 | FileCheck %s --check-prefix=NO-HEADERS-OFFSET |
| # RUN: not yaml2obj %s --docnum=9 -DNOHEADERS=false -o /dev/null 2>&1 | FileCheck %s --check-prefix=NO-HEADERS-OFFSET |
| |
| # NO-HEADERS-OFFSET: error: NoHeaders can't be used together with Offset/Sections/Excluded |
| |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_REL |
| Sections: |
| - Name: .foo |
| Type: SHT_PROGBITS |
| - Type: SectionHeaderTable |
| Offset: 0x1000 |
| NoHeaders: [[NOHEADERS]] |
| |
| ## Check we can place the section header table before other sections. |
| |
| # RUN: yaml2obj %s --docnum=10 -o %t10 |
| # RUN: llvm-readelf --file-headers --sections %t10 | FileCheck %s --check-prefix=PLACE-BEFORE |
| |
| # PLACE-BEFORE: Start of section headers: 64 (bytes into file) |
| # PLACE-BEFORE: Size of section headers: 64 (bytes) |
| # PLACE-BEFORE: Number of section headers: 4 |
| |
| # PLACE-BEFORE: Section Headers: |
| # PLACE-BEFORE: [Nr] Name Type Address Off Size |
| ## 0x140 == Start of section headers (64) + Size of section headers (64) * Number of section headers (4); |
| # PLACE-BEFORE: [ 1] .foo PROGBITS 0000000000000000 000140 000000 |
| |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_REL |
| Sections: |
| - Type: SectionHeaderTable |
| Offset: [[OFFSET=<none>]] |
| Sections: |
| - Name: .foo |
| - Name: .strtab |
| - Name: .shstrtab |
| - Name: .foo |
| Type: SHT_PROGBITS |
| |
| ## Check we can use the Offset key to place the section header table at a different location. |
| |
| # RUN: yaml2obj %s --docnum=10 -DOFFSET=0x1000 -o %t10.offset |
| # RUN: llvm-readelf --file-headers --sections %t10.offset | \ |
| # RUN: FileCheck %s --check-prefix=PLACE-BEFORE-OFFSET |
| |
| # PLACE-BEFORE-OFFSET: Start of section headers: 4096 (bytes into file) |
| # PLACE-BEFORE-OFFSET: Size of section headers: 64 (bytes) |
| # PLACE-BEFORE-OFFSET: Number of section headers: 4 |
| |
| # PLACE-BEFORE-OFFSET: Section Headers: |
| # PLACE-BEFORE-OFFSET: [Nr] Name Type Address Off Size |
| ## 0x1100 == Start of section headers (0x1000) + Size of section headers (64) * Number of section headers (4); |
| # PLACE-BEFORE-OFFSET: [ 1] .foo PROGBITS 0000000000000000 001100 000000 |
| |
| ## Check we can place the section header table somewhere in the middle of the sections list. |
| |
| # RUN: yaml2obj %s --docnum=11 -o %t11 |
| # RUN: llvm-readelf --sections %t11 | FileCheck %s --check-prefix=PLACE-AT-MIDDLE |
| |
| # PLACE-AT-MIDDLE: There are 5 section headers, starting at offset 0x140: |
| # PLACE-AT-MIDDLE: [Nr] Name Type Address Off Size |
| # PLACE-AT-MIDDLE: [ 1] .foo PROGBITS 0000000000000000 000040 000100 |
| ## The section header table is placed here, at 0x40 + 0x100 == 0x140. |
| ## The size of the table is 5 * 64 == 320 == 0x140. |
| ## 0x140 + 0x140 == offset of the .bar section. |
| # PLACE-AT-MIDDLE-NEXT: [ 2] .bar PROGBITS 0000000000000000 000280 000200 |
| # PLACE-AT-MIDDLE-NEXT: [ 3] .strtab STRTAB 0000000000000000 000480 000001 |
| # PLACE-AT-MIDDLE-NEXT: [ 4] .shstrtab STRTAB 0000000000000000 000481 00001d |
| |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_REL |
| Sections: |
| - Name: .foo |
| Type: SHT_PROGBITS |
| Size: 0x100 |
| - Type: SectionHeaderTable |
| Sections: |
| - Name: .foo |
| - Name: .bar |
| - Name: .strtab |
| - Name: .shstrtab |
| - Name: .bar |
| Type: SHT_PROGBITS |
| Size: 0x200 |
| |
| ## Check we don`t allow having multiple SectionHeaderTable chunks. |
| |
| # RUN: not yaml2obj %s --docnum=12 -o /dev/null 2>&1 | FileCheck %s --check-prefix=MULTIPLE |
| |
| # MULTIPLE: error: multiple section header tables are not allowed |
| |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_REL |
| Sections: |
| - Type: SectionHeaderTable |
| Sections: [] |
| - Type: SectionHeaderTable |
| Sections: [] |
| |
| ## Check that we place implicit sections before the section header table |
| ## when it is placed at the end explicitly. |
| |
| # RUN: yaml2obj %s --docnum=13 -o %t13 |
| # RUN: llvm-readelf --sections %t13 | FileCheck %s --check-prefix=IMPLICIT |
| |
| # IMPLICIT: There are 3 section headers, starting at offset 0x58: |
| # IMPLICIT: [Nr] Name Type Address Off Size |
| # IMPLICIT: [ 1] .strtab STRTAB 0000000000000000 000040 000001 |
| # IMPLICIT-NEXT: [ 2] .shstrtab STRTAB 0000000000000000 000041 000013 |
| ## The section header table is placed here, at 0x58. |
| ## alignTo(8, 0x41 + 0x13) == 0x58. |
| |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_REL |
| Sections: |
| - Type: SectionHeaderTable |
| Sections: |
| - Name: .strtab |
| - Name: .shstrtab |
