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llvm-project/llvm/test/tools/llvm-readobj/ELF/section-symbols.test

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[llvm-readobj] Change errors to warnings for symbol section name dumping Also only print each such warning once. LLVM-style output will now print "<?>" for sections it cannot identify, e.g. because the section index is invalid. GNU output continues to print the raw index. In both cases where the st_shndx value is SHN_XINDEX and the index cannot be looked up in the SHT_SYMTAB_SHNDX section (e.g. because it is missing), the symbol is printed like other symbols with st_shndx >= SHN_LORESERVE. Reviewed by: grimar, MaskRay Differential Revision: https://reviews.llvm.org/D69671
2019-11-04 12:00:39 +00:00
## ELF section symbols use the section names when printing. This test verifies
## this and also that appropriate things are printed if the section is somehow
## invalid.
# RUN: yaml2obj %s -o %t1
# RUN: llvm-readobj %t1 --symbols 2> %t.llvm.err1 | FileCheck %s --check-prefix=LLVM1
# RUN: FileCheck %s --input-file %t.llvm.err1 --check-prefix=WARN1 --implicit-check-not=warning
# RUN: llvm-readelf %t1 --symbols 2> %t.gnu.err1 | FileCheck %s --check-prefix=GNU1
# RUN: FileCheck %s --input-file %t.gnu.err1 --check-prefix=WARN1 --implicit-check-not=warning
# LLVM1: Name: (0)
# LLVM1: Name: .foo (0)
# LLVM1: Name: <section 67> (0)
# LLVM1: Name: .bar (0)
# LLVM1: Name: <section 66> (0)
# GNU1: Symbol table '.symtab' contains 5 entries:
# GNU1-NEXT: Num: {{.*}} Type {{.*}} Ndx Name
# GNU1-NEXT: 0: {{.*}} NOTYPE {{.*}} UND {{$}}
# GNU1-NEXT: 1: {{.*}} SECTION {{.*}} 1 .foo
# GNU1-NEXT: 2: {{.*}} SECTION {{.*}} 67 <section 67>
# GNU1-NEXT: 3: {{.*}} SECTION {{.*}} 2 .bar
# GNU1-NEXT: 4: {{.*}} SECTION {{.*}} 66 <section 66>
# WARN1: warning: '{{.*}}.tmp1': invalid section index: 67
# WARN1: warning: '{{.*}}.tmp1': invalid section index: 66
--- !ELF
FileHeader:
[yaml2obj] - Make the 'Machine' key optional. Currently we have to set 'Machine' to something in our YAML descriptions. Usually we use 'EM_X86_64' for 64-bit targets and 'EM_386' for 32-bit targets. At the same time, in fact, in most cases our tests do not need a machine type and we can use 'EM_NONE'. This is cleaner, because avoids the need of using a particular machine. In this patch I've made the 'Machine' key optional (the default value, when it is not specified is `EM_NONE`) and removed it (where possible) from yaml2obj, obj2yaml and llvm-readobj tests. There are few tests left where I decided not to remove it, because I didn't want to touch CHECK lines or doing anything more complex than a removing a "Machine: *" line and formatting lines around. Differential revision: https://reviews.llvm.org/D86202
2020-08-18 15:24:26 +03:00
Class: ELFCLASS32
Data: ELFDATA2LSB
Type: ET_REL
[llvm-readobj] Change errors to warnings for symbol section name dumping Also only print each such warning once. LLVM-style output will now print "<?>" for sections it cannot identify, e.g. because the section index is invalid. GNU output continues to print the raw index. In both cases where the st_shndx value is SHN_XINDEX and the index cannot be looked up in the SHT_SYMTAB_SHNDX section (e.g. because it is missing), the symbol is printed like other symbols with st_shndx >= SHN_LORESERVE. Reviewed by: grimar, MaskRay Differential Revision: https://reviews.llvm.org/D69671
2019-11-04 12:00:39 +00:00
Sections:
- Name: .foo
Type: SHT_PROGBITS
- Name: .bar
Type: SHT_PROGBITS
- Name: .symtab_shndx
Type: SHT_SYMTAB_SHNDX
Link: .symtab
Entries: [ 0, 0, 0, 2, 0x42 ]
Symbols:
- Name: ""
Section: .foo
Type: STT_SECTION
- Name: ""
Index: 0x43
Type: STT_SECTION
# Section symbol via SHT_SYMTAB_SHNDX.
- Name: ""
Index: SHN_XINDEX
Type: STT_SECTION
# Section symbol via SHT_SYMTAB_SHNDX with invalid index.
- Name: ""
Index: SHN_XINDEX
Type: STT_SECTION
# RUN: yaml2obj %s --docnum=2 -o %t2
# RUN: llvm-readobj %t2 --symbols 2> %t.llvm.err2 | FileCheck %s --check-prefix=LLVM2
# RUN: FileCheck %s --input-file %t.llvm.err2 --check-prefix=WARN2 --implicit-check-not=warning
# RUN: llvm-readelf %t2 --symbols 2> %t.gnu.err2 | FileCheck %s --check-prefix=GNU2
# RUN: FileCheck %s --input-file %t.gnu.err2 --check-prefix=WARN2 --implicit-check-not=warning
# LLVM2: Name: (0)
# LLVM2: Name: <?> (0)
# GNU2: Symbol table '.symtab' contains 2 entries:
# GNU2-NEXT: Num: {{.*}} Type {{.*}} Ndx Name
# GNU2-NEXT: 0: {{.*}} NOTYPE {{.*}} UND {{$}}
# GNU2-NEXT: 1: {{.*}} SECTION {{.*}} RSV[0xffff] <?>
# WARN2: warning: '{{.*}}.tmp2': extended symbol index (1) is past the end of the SHT_SYMTAB_SHNDX section of size 0
--- !ELF
FileHeader:
[yaml2obj] - Make the 'Machine' key optional. Currently we have to set 'Machine' to something in our YAML descriptions. Usually we use 'EM_X86_64' for 64-bit targets and 'EM_386' for 32-bit targets. At the same time, in fact, in most cases our tests do not need a machine type and we can use 'EM_NONE'. This is cleaner, because avoids the need of using a particular machine. In this patch I've made the 'Machine' key optional (the default value, when it is not specified is `EM_NONE`) and removed it (where possible) from yaml2obj, obj2yaml and llvm-readobj tests. There are few tests left where I decided not to remove it, because I didn't want to touch CHECK lines or doing anything more complex than a removing a "Machine: *" line and formatting lines around. Differential revision: https://reviews.llvm.org/D86202
2020-08-18 15:24:26 +03:00
Class: ELFCLASS32
Data: ELFDATA2LSB
Type: ET_REL
[llvm-readobj] Change errors to warnings for symbol section name dumping Also only print each such warning once. LLVM-style output will now print "<?>" for sections it cannot identify, e.g. because the section index is invalid. GNU output continues to print the raw index. In both cases where the st_shndx value is SHN_XINDEX and the index cannot be looked up in the SHT_SYMTAB_SHNDX section (e.g. because it is missing), the symbol is printed like other symbols with st_shndx >= SHN_LORESERVE. Reviewed by: grimar, MaskRay Differential Revision: https://reviews.llvm.org/D69671
2019-11-04 12:00:39 +00:00
Symbols:
# Section symbol via SHT_SYMTAB_SHNDX when SHT_SYMTAB_SHNDX is missing.
- Name: ""
Index: SHN_XINDEX
Type: STT_SECTION
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