210 lines · yaml
1## Check how we produce implicit SHT_STRTAB sections.2 3## For implicit string table sections, the `Flags` field can also4## be specified in YAML. Here we test the behavior in different cases.5 6## When flags are not explicitly specified, yaml2obj assigns no flags7## for .strtab/.shstrtab and the SHF_ALLOC flag for .dynstr by default.8 9# RUN: yaml2obj --docnum=1 %s -o %t110# RUN: llvm-readelf %t1 --sections | FileCheck %s --check-prefix=CASE111 12# CASE1: [Nr] Name Type {{.*}} Flg Lk13# CASE1: [ 1] .strtab STRTAB {{.*}} 014# CASE1-NEXT: [ 2] .shstrtab STRTAB {{.*}} 015# CASE1-NEXT: [ 3] .dynstr STRTAB {{.*}} A 016 17--- !ELF18FileHeader:19 Class: ELFCLASS6420 Data: ELFDATA2LSB21 Type: ET_DYN22Sections:23 - Name: .strtab24 Type: SHT_STRTAB25 Flags: [[STRTABFLAGS=<none>]]26 Offset: [[STRTABOFFSET=<none>]]27 - Name: .shstrtab28 Type: SHT_STRTAB29 Flags: [[SHSTRTABFLAGS=<none>]]30 Offset: [[SHSTRTABOFFSET=<none>]]31 - Name: .dynstr32 Type: SHT_STRTAB33 Flags: [[DYNSTRFLAGS=<none>]]34 Offset: [[DYNSTROFFSET=<none>]]35 36## Check we can set arbitrary flags and offsets for37## implicit string table sections.38 39# RUN: yaml2obj --docnum=1 \40# RUN: -DSTRTABFLAGS="[ SHF_ALLOC, SHF_STRINGS ]" -DSTRTABOFFSET=0x100 \41# RUN: -DSHSTRTABFLAGS="[ SHF_ALLOC, SHF_WRITE ]" -DSHSTRTABOFFSET=0x200 \42# RUN: -DDYNSTRFLAGS="[ SHF_STRINGS ]" -DDYNSTROFFSET=0x300 %s -o %t243# RUN: llvm-readelf %t2 --sections | FileCheck %s --check-prefix=CASE244 45# CASE2: [Nr] Name Type Address Off {{.*}} Flg Lk46# CASE2: [ 1] .strtab STRTAB 0000000000000000 000100 {{.*}} AS 047# CASE2-NEXT: [ 2] .shstrtab STRTAB 0000000000000001 000200 {{.*}} WA 048# CASE2-NEXT: [ 3] .dynstr STRTAB 0000000000000000 000300 {{.*}} S 049 50## Check no flags are set by default for implicit string table sections51## when they are not described in the YAML.52 53# RUN: yaml2obj --docnum=2 %s -o %t354# RUN: llvm-readelf %t3 --sections | FileCheck %s --check-prefix=CASE355 56# CASE3: [Nr] Name Type {{.*}} ES Flg Lk57# CASE3: [ 1] .strtab STRTAB {{.*}} 00 058# CASE3-NEXT: [ 2] .shstrtab STRTAB {{.*}} 00 059 60--- !ELF61FileHeader:62 Class: ELFCLASS6463 Data: ELFDATA2LSB64 Type: ET_DYN65 66## For implicit string table sections, `Size` and/or `Content` fields can also67## be specified in YAML. Here we test the behavior in different cases.68 69## When no `Size` or `Content` is specified for a string table section,70## yaml2obj writes the default content.71 72# RUN: yaml2obj --docnum=3 %s -o %t473# RUN: llvm-objdump %t4 -s | FileCheck %s --check-prefix=CASE474 75# CASE4: Contents of section .strtab:76# CASE4-NEXT: 0000 00666f6f 00 .foo.77# CASE4-NEXT: Contents of section .shstrtab:78# CASE4-NEXT: 0000 002e6479 6e737472 002e6479 6e73796d ..dynstr..dynsym79# CASE4-NEXT: 0010 002e7368 73747274 6162002e 73747274 ..shstrtab..strt80# CASE4-NEXT: 0020 6162002e 73796d74 616200 ab..symtab.81# CASE4-NEXT: Contents of section .dynstr:82# CASE4-NEXT: 0030 00626172 00 .bar.83 84--- !ELF85FileHeader:86 Class: ELFCLASS6487 Data: ELFDATA2LSB88 Type: ET_DYN89Sections:90 - Name: .strtab91 Type: SHT_STRTAB92 Size: [[STRTABSIZE=<none>]]93 Content: [[STRTABCONTENT=<none>]]94 - Name: .shstrtab95 Type: SHT_STRTAB96 Size: [[SHSTRTABSIZE=<none>]]97 Content: [[SHSTRTABCONTENT=<none>]]98 - Name: .dynstr99 Type: SHT_STRTAB100 Size: [[DYNSTRSIZE=<none>]]101 Content: [[DYNSTRCONTENT=<none>]]102## Used to trigger adding string `foo` to the string table section.103Symbols:104 - Name: foo105DynamicSymbols:106 - Name: bar107 108## For string table sections, `Size` can be used to override the109## implicit string table data. The content is filled with zeroes in this case.110 111# RUN: yaml2obj --docnum=3 -DSTRTABSIZE=2 -DSHSTRTABSIZE=0x30 -DDYNSTRSIZE=4 %s -o %t5112# RUN: llvm-readobj --section-data -S %t5 | FileCheck %s --check-prefix=CASE5113 114# CASE5: Index: 1115# CASE5-NEXT: Name: (27)116# CASE5-NEXT: Type: SHT_STRTAB117# CASE5: SectionData (118# CASE5-NEXT: 0000: 0000 |119# CASE5-NEXT: )120# CASE5: Index: 2121# CASE5-NEXT: Name: (17)122# CASE5-NEXT: Type: SHT_STRTAB (0x3)123# CASE5: SectionData (124# CASE5-NEXT: 0000: 00000000 00000000 00000000 00000000 |125# CASE5-NEXT: 0010: 00000000 00000000 00000000 00000000 |126# CASE5-NEXT: 0020: 00000000 00000000 00000000 00000000 |127# CASE5-NEXT: )128# CASE5: Index: 3129# CASE5-NEXT: Name: (1)130# CASE5-NEXT: Type: SHT_STRTAB (0x3)131# CASE5: SectionData (132# CASE5-NEXT: 0000: 00000000 |133# CASE5-NEXT: )134 135## For string table sections, `Content` can be used to override the136## implicit string table data.137 138# RUN: yaml2obj --docnum=3 %s \139# RUN: -DSTRTABCONTENT="01020304" \140# RUN: -DSHSTRTABCONTENT="6162636465666767696a6b6c6d6e6f707172737475767778797a61626364656667676900" \141# RUN: -DDYNSTRCONTENT="eeddaabb" -o %t6142# RUN: llvm-readobj --section-data -S %t6 | FileCheck %s --check-prefix=CASE6143 144# CASE6: Index: 1145# CASE6-NEXT: Name: bcdefggi (27)146# CASE6: SectionData (147# CASE6-NEXT: 0000: 01020304 |148# CASE6-NEXT: )149# CASE6: Index: 2150# CASE6-NEXT: Name: rstuvwxyzabcdefggi (17)151# CASE6: SectionData (152# CASE6-NEXT: 0000: 61626364 65666767 696A6B6C 6D6E6F70 |153# CASE6-NEXT: 0010: 71727374 75767778 797A6162 63646566 |154# CASE6-NEXT: 0020: 67676900 |155# CASE6-NEXT: )156# CASE6: Index: 3157# CASE6-NEXT: Name: bcdefggijklmnopqrstuvwxyzabcdefggi (1)158# CASE6: SectionData (159# CASE6-NEXT: 0000: EEDDAABB |160# CASE6-NEXT: )161 162## For string table sections, check we can specify both `Size` and `Content`163## when size is greater than content size. In this case zeroes are164## added as padding after the specified content.165 166# RUN: yaml2obj --docnum=3 %s \167# RUN: -DSTRTABCONTENT="01020304" -DSTRTABSIZE=5 \168# RUN: -DSHSTRTABCONTENT="6162636465666767696a6b6c6d6e6f707172737475767778797a61626364656667676900" -DSHSTRTABSIZE=0x26 \169# RUN: -DDYNSTRCONTENT="eeddaabb" -DDYNSTRSIZE=7 -o %t7170# RUN: llvm-readobj --section-data -S %t7 | FileCheck %s --check-prefix=CASE7171 172# CASE7: Index: 1173# CASE7-NEXT: Name: bcdefggi (27)174# CASE7: SectionData (175# CASE7-NEXT: 0000: 01020304 00 |176# CASE7-NEXT: )177# CASE7: Index: 2178# CASE7-NEXT: Name: rstuvwxyzabcdefggi (17)179# CASE7: SectionData (180# CASE7-NEXT: 0000: 61626364 65666767 696A6B6C 6D6E6F70 |181# CASE7-NEXT: 0010: 71727374 75767778 797A6162 63646566 |182# CASE7-NEXT: 0020: 67676900 0000 |183# CASE7-NEXT: )184# CASE7: Index: 3185# CASE7-NEXT: Name: bcdefggijklmnopqrstuvwxyzabcdefggi (1)186# CASE7: SectionData (187# CASE7-NEXT: 0000: EEDDAABB 000000 |188# CASE7-NEXT: )189 190## For string table sections, check we can specify both `Size` and `Content`191## when size is equal to content size.192 193# RUN: yaml2obj --docnum=3 %s \194# RUN: -DSTRTABCONTENT="01020304" -DSTRTABSIZE=4 \195# RUN: -DSHSTRTABCONTENT="6162636465666767696a6b6c6d6e6f707172737475767778797a61626364656667676900" -DSHSTRTABSIZE=0x24 \196# RUN: -DDYNSTRCONTENT="eeddaabb" -DDYNSTRSIZE=4 -o %t8197# RUN: llvm-readobj --section-data -S %t8 | FileCheck %s --check-prefix=CASE6198 199## Check that we report an error when the the value of "Size" is less than the content size.200 201# RUN: not yaml2obj --docnum=3 %s -DSTRTABCONTENT="01020304" -DSTRTABSIZE=3 2>&1 \202# RUN: | FileCheck %s --check-prefix=CASE8203# RUN: not yaml2obj --docnum=3 %s \204# RUN: -DSHSTRTABCONTENT="6162636465666767696a6b6c6d6e6f707172737475767778797a61626364656667676900" -DSHSTRTABSIZE=0x23 2>&1 \205# RUN: | FileCheck %s --check-prefix=CASE8206# RUN: not yaml2obj --docnum=3 %s -DDYNSTRCONTENT="eeddaabb" -DDYNSTRSIZE=0x3 2>&1 \207# RUN: | FileCheck %s --check-prefix=CASE8208 209# CASE8: Section size must be greater than or equal to the content size210