839 lines
35 KiB
Plaintext
839 lines
35 KiB
Plaintext
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## In this test we test that dynamic symbols are dumped as expected.
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## Case 1: Dynamic symbol table found via the DT_SYMTAB dynamic tag.
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# RUN: yaml2obj --docnum=1 %s -o %t1.so
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# RUN: llvm-readobj --dyn-symbols %t1.so 2>&1 \
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# RUN: | FileCheck %s --implicit-check-not="warning:" --check-prefix=DYNSYMS-LLVM
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# RUN: llvm-readelf --dyn-symbols %t1.so 2>&1 \
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# RUN: | FileCheck %s --implicit-check-not="warning:" --check-prefix=DYNSYMS-GNU
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# DYNSYMS-LLVM: DynamicSymbols [
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# DYNSYMS-LLVM-NEXT: Symbol {
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# DYNSYMS-LLVM-NEXT: Name: (0)
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# DYNSYMS-LLVM-NEXT: Value: 0x0
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# DYNSYMS-LLVM-NEXT: Size: 0
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# DYNSYMS-LLVM-NEXT: Binding: Local (0x0)
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# DYNSYMS-LLVM-NEXT: Type: None (0x0)
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# DYNSYMS-LLVM-NEXT: Other: 0
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# DYNSYMS-LLVM-NEXT: Section: Undefined (0x0)
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# DYNSYMS-LLVM-NEXT: }
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# DYNSYMS-LLVM-NEXT: Symbol {
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# DYNSYMS-LLVM-NEXT: Name: foo (5)
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# DYNSYMS-LLVM-NEXT: Value: 0x0
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# DYNSYMS-LLVM-NEXT: Size: 0
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# DYNSYMS-LLVM-NEXT: Binding: Local (0x0)
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# DYNSYMS-LLVM-NEXT: Type: None (0x0)
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# DYNSYMS-LLVM-NEXT: Other: 0
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# DYNSYMS-LLVM-NEXT: Section: Undefined (0x0)
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# DYNSYMS-LLVM-NEXT: }
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# DYNSYMS-LLVM-NEXT: Symbol {
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# DYNSYMS-LLVM-NEXT: Name: bar (1)
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# DYNSYMS-LLVM-NEXT: Value: 0x0
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# DYNSYMS-LLVM-NEXT: Size: 0
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# DYNSYMS-LLVM-NEXT: Binding: Local (0x0)
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# DYNSYMS-LLVM-NEXT: Type: None (0x0)
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# DYNSYMS-LLVM-NEXT: Other: 0
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# DYNSYMS-LLVM-NEXT: Section: Undefined (0x0)
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# DYNSYMS-LLVM-NEXT: }
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# DYNSYMS-LLVM-NEXT: ]
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# DYNSYMS-GNU: Symbol table '.dynsym' contains 3 entries:
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# DYNSYMS-GNU-NEXT: Num: Value Size Type Bind Vis Ndx Name
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# DYNSYMS-GNU-NEXT: 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
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# DYNSYMS-GNU-NEXT: 1: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND foo
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# DYNSYMS-GNU-NEXT: 2: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND 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_DYN
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Sections:
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- Name: .dynamic
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Type: SHT_DYNAMIC
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Entries:
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- Tag: DT_SYMTAB
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Value: 0x100
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- Tag: DT_NULL
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Value: 0
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- Name: .dynsym
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Type: SHT_DYNSYM
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Address: 0x100
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DynamicSymbols:
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- Name: foo
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- Name: bar
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ProgramHeaders:
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- Type: PT_LOAD
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VAddr: 0x100
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FirstSec: .dynsym
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LastSec: .dynsym
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## Case 2: Check the output for aliases.
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## a) Check the two-letter alias --dt is equivalent to the --dyn-symbols
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## full flag name.
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# RUN: llvm-readobj --dt %t1.so > %t.readobj-dt-alias
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# RUN: llvm-readobj --dyn-symbols %t1.so > %t.readobj-dt-no-alias
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# RUN: cmp %t.readobj-dt-alias %t.readobj-dt-no-alias
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## b) Check --dyn-syms equals --dyn-symbols, --dt for llvm-readobj.
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# RUN: llvm-readobj --dyn-syms %t1.so > %t.readobj-dyn-syms
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# RUN: cmp %t.readobj-dt-alias %t.readobj-dyn-syms
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## c) Check --dyn-syms equals --dyn-symbols for llvm-readelf.
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# RUN: llvm-readelf --dyn-syms %t1.so > %t.readelf-dyn-syms
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# RUN: llvm-readelf --dyn-symbols %t1.so > %t.readelf-dyn-symbols
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# RUN: cmp %t.readelf-dyn-symbols %t.readelf-dyn-syms
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## Case 3.1: Check that we are able to dump the dynamic symbol table even when we have no program headers.
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## In this case we find the table by it's type (SHT_DYNSYM) and ignore the DT_SYMTAB value.
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# RUN: yaml2obj --docnum=2 %s -o %t2.so
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# RUN: llvm-readobj %t2.so --dyn-symbols 2>&1 | \
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# RUN: FileCheck %s -DFILE=%t2.so --implicit-check-not=warning: --check-prefix=NOPHDRS-LLVM
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# RUN: llvm-readelf %t2.so --dyn-symbols 2>&1 | \
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# RUN: FileCheck %s -DFILE=%t2.so --implicit-check-not=warning: -DNAME=.dynsym --check-prefix=NOPHDRS-GNU
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# NOPHDRS-LLVM: warning: '[[FILE]]': unable to parse DT_SYMTAB: virtual address is not in any segment: 0xffff1234
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# NOPHDRS-LLVM: DynamicSymbols [
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# NOPHDRS-LLVM-NEXT: Symbol {
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# NOPHDRS-LLVM-NEXT: Name: (0)
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# NOPHDRS-LLVM-NEXT: Value: 0x0
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# NOPHDRS-LLVM-NEXT: Size: 0
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# NOPHDRS-LLVM-NEXT: Binding: Local (0x0)
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# NOPHDRS-LLVM-NEXT: Type: None (0x0)
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# NOPHDRS-LLVM-NEXT: Other: 0
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# NOPHDRS-LLVM-NEXT: Section: Undefined (0x0)
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# NOPHDRS-LLVM-NEXT: }
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# NOPHDRS-LLVM-NEXT: Symbol {
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# NOPHDRS-LLVM-NEXT: Name: foo (1)
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# NOPHDRS-LLVM-NEXT: Value: 0x0
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# NOPHDRS-LLVM-NEXT: Size: 0
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# NOPHDRS-LLVM-NEXT: Binding: Local (0x0)
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# NOPHDRS-LLVM-NEXT: Type: None (0x0)
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# NOPHDRS-LLVM-NEXT: Other: 0
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# NOPHDRS-LLVM-NEXT: Section: Undefined (0x0)
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# NOPHDRS-LLVM-NEXT: }
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# NOPHDRS-LLVM-NEXT: ]
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# NOPHDRS-GNU: warning: '[[FILE]]': unable to parse DT_SYMTAB: virtual address is not in any segment: 0xffff1234
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# NOPHDRS-NAMEWARN: warning: '[[FILE]]': unable to get the name of SHT_DYNSYM section with index 2: a section [index 2] has an invalid sh_name (0xffffffff) offset which goes past the end of the section name string table
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# NOPHDRS-GNU: Symbol table '[[NAME]]' contains 2 entries:
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# NOPHDRS-GNU-NEXT: Num: Value Size Type Bind Vis Ndx Name
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# NOPHDRS-GNU-NEXT: 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
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# NOPHDRS-GNU-NEXT: 1: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND foo
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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_DYN
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Sections:
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- Name: .dynamic
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Type: SHT_DYNAMIC
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Entries:
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- Tag: DT_SYMTAB
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Value: 0xffff1234
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- Tag: DT_NULL
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Value: 0
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- Name: .dynsym
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Type: SHT_DYNSYM
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ShName: [[DYNSYMNAME=<none>]]
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DynamicSymbols:
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- Name: foo
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## Case 3.2: the same as 3.1, but the sh_name field of the SHT_DYNSYM section is invalid.
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## Check we are still able to dump symbols.
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# RUN: yaml2obj --docnum=2 -DDYNSYMNAME=0xffffffff %s -o %t2.broken.name
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# RUN: llvm-readobj %t2.broken.name --dyn-symbols 2>&1 | \
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# RUN: FileCheck %s -DFILE=%t2.broken.name --check-prefix=NOPHDRS-LLVM --implicit-check-not=warning:
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# RUN: llvm-readelf %t2.broken.name --dyn-symbols 2>&1 | \
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# RUN: FileCheck %s -DFILE=%t2.broken.name -DNAME="<?>" \
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# RUN: --check-prefixes=NOPHDRS-GNU,NOPHDRS-NAMEWARN --implicit-check-not=warning:
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## Case 4: Check we report a warning when there is no SHT_DYNSYM section and we can't map the DT_SYMTAB value
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## to an address because of the absence of a corresponding PT_LOAD program header.
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# RUN: yaml2obj --docnum=3 %s -o %t3.so
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# RUN: llvm-readobj %t3.so --dyn-symbols 2>&1 | FileCheck %s -DFILE=%t3.so --check-prefixes=NOSHT-DYNSYM,NOSHT-DYNSYM-LLVM
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# RUN: llvm-readelf %t3.so --dyn-symbols 2>&1 | FileCheck %s -DFILE=%t3.so --check-prefix=NOSHT-DYNSYM
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# NOSHT-DYNSYM: warning: '[[FILE]]': unable to parse DT_SYMTAB: virtual address is not in any segment: 0x0
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# NOSHT-DYNSYM-LLVM: DynamicSymbols [
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# NOSHT-DYNSYM-LLVM-NEXT: ]
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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_DYN
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Sections:
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- Name: .dynsym
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Type: SHT_PROGBITS
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- Name: .dynamic
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Type: SHT_DYNAMIC
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Entries:
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- Tag: DT_SYMTAB
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Value: 0
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- Tag: DT_NULL
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Value: 0
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DynamicSymbols:
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- Name: foo
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## Case 5: Check that when we can't map the value of the DT_SYMTAB tag to an address, we report a warning and
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## use the information in the section header table to locate the dynamic symbol table.
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# RUN: yaml2obj --docnum=4 %s -o %t4.so
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# RUN: llvm-readobj %t4.so --dyn-symbols 2>&1 | FileCheck -DFILE=%t4.so %s --check-prefixes=BROKEN-DTSYMTAB,BROKEN-DTSYMTAB-LLVM
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# RUN: llvm-readelf %t4.so --dyn-symbols 2>&1 | FileCheck -DFILE=%t4.so %s --check-prefixes=BROKEN-DTSYMTAB,BROKEN-DTSYMTAB-GNU
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# BROKEN-DTSYMTAB: warning: '[[FILE]]': unable to parse DT_SYMTAB: virtual address is not in any segment: 0xffff1234
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# BROKEN-DTSYMTAB-LLVM: Name: foo
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# BROKEN-DTSYMTAB-GNU: 1: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND foo
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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_DYN
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Sections:
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- Name: .dynamic
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Type: SHT_DYNAMIC
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Entries:
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- Tag: DT_SYMTAB
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Value: 0xffff1234
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- Tag: DT_NULL
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Value: 0
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DynamicSymbols:
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- Name: foo
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ProgramHeaders:
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- Type: PT_LOAD
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VAddr: 0x0000
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FirstSec: .dynsym
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LastSec: .dynsym
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## Case 6: Check that if we can get the location of the dynamic symbol table using both the DT_SYMTAB value
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## and the section headers table then we prefer the former and report a warning.
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# RUN: yaml2obj --docnum=5 %s -o %t5.so
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# RUN: llvm-readobj %t5.so --dyn-symbols 2>&1 | FileCheck -DFILE=%t5.so %s --check-prefixes=PREFER-DTSYMTAB,PREFER-DTSYMTAB-LLVM
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# RUN: llvm-readelf %t5.so --dyn-symbols 2>&1 | FileCheck -DFILE=%t5.so %s --check-prefixes=PREFER-DTSYMTAB,PREFER-DTSYMTAB-GNU
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# PREFER-DTSYMTAB: warning: '[[FILE]]': SHT_DYNSYM section header and DT_SYMTAB disagree about the location of the dynamic symbol table
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# PREFER-DTSYMTAB-LLVM: Name: o
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# PREFER-DTSYMTAB-GNU: 1: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND o
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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_DYN
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Sections:
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- Name: .dynamic
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Type: SHT_DYNAMIC
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Entries:
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- Tag: DT_SYMTAB
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Value: 0x0
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- Tag: DT_NULL
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Value: 0
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- Name: .dynsym
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Type: SHT_DYNSYM
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- Name: .mydynsym
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Type: SHT_DYNSYM
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## The Content describes 2 symbols: zero symbol and symbol with st_name == 3.
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Content: "000000000000000000000000000000000000000000000000030000000000000000000000000000000000000000000000"
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DynamicSymbols:
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- Name: foo
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ProgramHeaders:
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- Type: PT_LOAD
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VAddr: 0x0000
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FirstSec: .mydynsym
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LastSec: .mydynsym
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## Case 7: Check how we dump versioned symbols. Use both -V and --dyn-symbols
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## to check that printed version is consistent.
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## A default version is one that is contained in the version table (SHT_GNU_versym)
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## and only available for defined symbols. We use the "@@" prefix to print it.
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## Check how we dump undefined symbols.
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# RUN: yaml2obj %s --docnum=6 -o %t6
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# RUN: llvm-readobj -V --dyn-symbols %t6 | FileCheck %s --check-prefix=VERSIONED-UND-LLVM
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# RUN: llvm-readelf -V --dyn-symbols %t6 | FileCheck %s --check-prefix=VERSIONED-UND-GNU
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# VERSIONED-UND-LLVM: DynamicSymbols [
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# VERSIONED-UND-LLVM-NEXT: Symbol {
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# VERSIONED-UND-LLVM-NEXT: Name: (0)
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# VERSIONED-UND-LLVM-NEXT: Value: 0x0
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# VERSIONED-UND-LLVM-NEXT: Size: 0
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# VERSIONED-UND-LLVM-NEXT: Binding: Local (0x0)
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# VERSIONED-UND-LLVM-NEXT: Type: None (0x0)
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# VERSIONED-UND-LLVM-NEXT: Other: 0
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# VERSIONED-UND-LLVM-NEXT: Section: Undefined (0x0)
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# VERSIONED-UND-LLVM-NEXT: }
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# VERSIONED-UND-LLVM-NEXT: Symbol {
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# VERSIONED-UND-LLVM-NEXT: Name: localversym (28)
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# VERSIONED-UND-LLVM-NEXT: Value: 0x0
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# VERSIONED-UND-LLVM-NEXT: Size: 0
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# VERSIONED-UND-LLVM-NEXT: Binding: Local (0x0)
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# VERSIONED-UND-LLVM-NEXT: Type: None (0x0)
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# VERSIONED-UND-LLVM-NEXT: Other: 0
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# VERSIONED-UND-LLVM-NEXT: Section: Undefined (0x0)
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# VERSIONED-UND-LLVM-NEXT: }
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# VERSIONED-UND-LLVM-NEXT: Symbol {
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# VERSIONED-UND-LLVM-NEXT: Name: globalversym (40)
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# VERSIONED-UND-LLVM-NEXT: Value: 0x0
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# VERSIONED-UND-LLVM-NEXT: Size: 0
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# VERSIONED-UND-LLVM-NEXT: Binding: Local (0x0)
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# VERSIONED-UND-LLVM-NEXT: Type: None (0x0)
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# VERSIONED-UND-LLVM-NEXT: Other: 0
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# VERSIONED-UND-LLVM-NEXT: Section: Undefined (0x0)
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# VERSIONED-UND-LLVM-NEXT: }
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# VERSIONED-UND-LLVM-NEXT: Symbol {
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# VERSIONED-UND-LLVM-NEXT: Name: aaa@v2 (65)
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# VERSIONED-UND-LLVM-NEXT: Value: 0x0
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# VERSIONED-UND-LLVM-NEXT: Size: 0
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|
|
# VERSIONED-UND-LLVM-NEXT: Binding: Local (0x0)
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Type: None (0x0)
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Other: 0
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Section: Undefined (0x0)
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: }
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Symbol {
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Name: bbb@v3hidden (61)
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Value: 0x0
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Size: 0
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Binding: Local (0x0)
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Type: None (0x0)
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Other: 0
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Section: Undefined (0x0)
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: }
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Symbol {
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Name: ccc@v4 (57)
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Value: 0x0
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Size: 0
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Binding: Local (0x0)
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Type: None (0x0)
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Other: 0
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Section: Undefined (0x0)
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: }
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Symbol {
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Name: ddd@v5hidden (53)
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Value: 0x0
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Size: 0
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Binding: Local (0x0)
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Type: None (0x0)
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Other: 0
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: Section: Undefined (0x0)
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: }
|
||
|
|
# VERSIONED-UND-LLVM-NEXT: ]
|
||
|
|
# VERSIONED-UND-LLVM: VersionSymbols [
|
||
|
|
# VERSIONED-UND-LLVM: Name: localversym
|
||
|
|
# VERSIONED-UND-LLVM: Name: globalversym
|
||
|
|
# VERSIONED-UND-LLVM: Name: aaa@v2
|
||
|
|
# VERSIONED-UND-LLVM: Name: bbb@v3hidden
|
||
|
|
# VERSIONED-UND-LLVM: Name: ccc@v4
|
||
|
|
# VERSIONED-UND-LLVM: Name: ddd@v5hidden
|
||
|
|
|
||
|
|
# VERSIONED-UND-GNU: Num: Value Size Type Bind Vis Ndx Name
|
||
|
|
# VERSIONED-UND-GNU: 1: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND localversym
|
||
|
|
# VERSIONED-UND-GNU-NEXT: 2: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND globalversym
|
||
|
|
# VERSIONED-UND-GNU-NEXT: 3: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND aaa@v2
|
||
|
|
# VERSIONED-UND-GNU-NEXT: 4: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND bbb@v3hidden
|
||
|
|
# VERSIONED-UND-GNU-NEXT: 5: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND ccc@v4
|
||
|
|
# VERSIONED-UND-GNU-NEXT: 6: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND ddd@v5hidden
|
||
|
|
# VERSIONED-UND-GNU: 000: 0 (*local*) 0 (*local*) 1 (*global*) 2 (v2)
|
||
|
|
# VERSIONED-UND-GNU: 004: 3h(v3hidden) 4 (v4) 5h(v5hidden)
|
||
|
|
|
||
|
|
--- !ELF
|
||
|
|
FileHeader:
|
||
|
|
Class: ELFCLASS64
|
||
|
|
Data: ELFDATA2LSB
|
||
|
|
Type: ET_DYN
|
||
|
|
Sections:
|
||
|
|
- Name: .gnu.version
|
||
|
|
Type: SHT_GNU_versym
|
||
|
|
Flags: [ SHF_ALLOC ]
|
||
|
|
Link: .dynsym
|
||
|
|
AddressAlign: 0x2
|
||
|
|
EntSize: 0x2
|
||
|
|
## 0x8000 is a special VERSYM_HIDDEN bit.
|
||
|
|
## Here we have: VER_NDX_LOCAL (0), VER_NDX_GLOBAL (1), two versions
|
||
|
|
## from the SHT_GNU_verdef section (2, 0x8003) and two versions
|
||
|
|
## from the SHT_GNU_verneed section (4, 0x8005).
|
||
|
|
Entries: [ 0, 0, 1, 2, 0x8003, 4, 0x8005 ]
|
||
|
|
- Name: .gnu.version_d
|
||
|
|
Type: SHT_GNU_verdef
|
||
|
|
Flags: [ SHF_ALLOC ]
|
||
|
|
AddressAlign: 0x4
|
||
|
|
Entries:
|
||
|
|
- VersionNdx: 2
|
||
|
|
Names:
|
||
|
|
- v2
|
||
|
|
- VersionNdx: 3
|
||
|
|
Names:
|
||
|
|
- v3hidden
|
||
|
|
- Name: .gnu.version_r
|
||
|
|
Type: SHT_GNU_verneed
|
||
|
|
Flags: [ SHF_ALLOC ]
|
||
|
|
Dependencies:
|
||
|
|
- Version: 1
|
||
|
|
File: file1.so
|
||
|
|
Entries:
|
||
|
|
- Name: v4
|
||
|
|
Other: 4
|
||
|
|
Hash: 0
|
||
|
|
Flags: 0
|
||
|
|
- Version: 1
|
||
|
|
File: file2.0
|
||
|
|
Entries:
|
||
|
|
- Name: v5hidden
|
||
|
|
Other: 5
|
||
|
|
Hash: 0
|
||
|
|
Flags: 0
|
||
|
|
DynamicSymbols:
|
||
|
|
- Name: localversym
|
||
|
|
Index: [[INDEX=<none>]]
|
||
|
|
- Name: globalversym
|
||
|
|
Index: [[INDEX=<none>]]
|
||
|
|
- Name: aaa
|
||
|
|
Index: [[INDEX=<none>]]
|
||
|
|
- Name: [[NAME=bbb]]
|
||
|
|
Type: [[TYPE=STT_NOTYPE]]
|
||
|
|
Index: [[INDEX_BBB=<none>]]
|
||
|
|
- Name: [[NAME=ccc]]
|
||
|
|
Type: [[TYPE=STT_NOTYPE]]
|
||
|
|
Index: [[INDEX=<none>]]
|
||
|
|
- Name: ddd
|
||
|
|
Index: [[INDEX=<none>]]
|
||
|
|
|
||
|
|
## In this case all dynamic symbols are defined. Check that we print the
|
||
|
|
## "@@" prefix for default versions as expected.
|
||
|
|
|
||
|
|
# RUN: yaml2obj %s --docnum=6 -DINDEX=1 -DINDEX_BBB=1 -o %t6.def
|
||
|
|
# RUN: llvm-readobj -V --dyn-symbols %t6.def | FileCheck %s --check-prefix=VERSIONED-DEF-LLVM
|
||
|
|
# RUN: llvm-readelf -V --dyn-symbols %t6.def | FileCheck %s --check-prefix=VERSIONED-DEF-GNU
|
||
|
|
|
||
|
|
# VERSIONED-DEF-LLVM: DynamicSymbols [
|
||
|
|
# VERSIONED-DEF-LLVM: Symbol {
|
||
|
|
# VERSIONED-DEF-LLVM: Name: localversym (28)
|
||
|
|
# VERSIONED-DEF-LLVM: Section: .gnu.version (0x1)
|
||
|
|
# VERSIONED-DEF-LLVM-NEXT: }
|
||
|
|
# VERSIONED-DEF-LLVM-NEXT: Symbol {
|
||
|
|
# VERSIONED-DEF-LLVM-NEXT: Name: globalversym (40)
|
||
|
|
# VERSIONED-DEF-LLVM: Section: .gnu.version (0x1)
|
||
|
|
# VERSIONED-DEF-LLVM-NEXT: }
|
||
|
|
# VERSIONED-DEF-LLVM-NEXT: Symbol {
|
||
|
|
# VERSIONED-DEF-LLVM-NEXT: Name: aaa@@v2 (65)
|
||
|
|
# VERSIONED-DEF-LLVM: Section: .gnu.version (0x1)
|
||
|
|
# VERSIONED-DEF-LLVM-NEXT: }
|
||
|
|
# VERSIONED-DEF-LLVM-NEXT: Symbol {
|
||
|
|
# VERSIONED-DEF-LLVM-NEXT: Name: bbb@v3hidden (61)
|
||
|
|
# VERSIONED-DEF-LLVM: Section: .gnu.version (0x1)
|
||
|
|
# VERSIONED-DEF-LLVM-NEXT: }
|
||
|
|
# VERSIONED-DEF-LLVM-NEXT: Symbol {
|
||
|
|
# VERSIONED-DEF-LLVM-NEXT: Name: ccc@v4 (57)
|
||
|
|
# VERSIONED-DEF-LLVM: Section: .gnu.version (0x1)
|
||
|
|
# VERSIONED-DEF-LLVM-NEXT: }
|
||
|
|
# VERSIONED-DEF-LLVM-NEXT: Symbol {
|
||
|
|
# VERSIONED-DEF-LLVM-NEXT: Name: ddd@v5hidden (53)
|
||
|
|
# VERSIONED-DEF-LLVM: Section: .gnu.version (0x1)
|
||
|
|
# VERSIONED-DEF-LLVM-NEXT: }
|
||
|
|
# VERSIONED-DEF-LLVM: VersionSymbols [
|
||
|
|
# VERSIONED-DEF-LLVM: Name: localversym
|
||
|
|
# VERSIONED-DEF-LLVM: Name: globalversym
|
||
|
|
# VERSIONED-DEF-LLVM: Name: aaa@@v2
|
||
|
|
# VERSIONED-DEF-LLVM: Name: bbb@v3hidden
|
||
|
|
# VERSIONED-DEF-LLVM: Name: ccc@v4
|
||
|
|
# VERSIONED-DEF-LLVM: Name: ddd@v5hidden
|
||
|
|
|
||
|
|
# VERSIONED-DEF-GNU: Num: {{.*}} Vis Ndx Name
|
||
|
|
# VERSIONED-DEF-GNU: 1: {{.*}} DEFAULT 1 localversym
|
||
|
|
# VERSIONED-DEF-GNU-NEXT: 2: {{.*}} DEFAULT 1 globalversym
|
||
|
|
# VERSIONED-DEF-GNU-NEXT: 3: {{.*}} DEFAULT 1 aaa@@v2
|
||
|
|
# VERSIONED-DEF-GNU-NEXT: 4: {{.*}} DEFAULT 1 bbb@v3hidden
|
||
|
|
# VERSIONED-DEF-GNU-NEXT: 5: {{.*}} DEFAULT 1 ccc@v4
|
||
|
|
# VERSIONED-DEF-GNU-NEXT: 6: {{.*}} DEFAULT 1 ddd@v5hidden
|
||
|
|
|
||
|
|
## Check the behavior for unnamed versioned section symbols.
|
||
|
|
# RUN: yaml2obj %s -DTYPE=STT_SECTION -DNAME="''" -DINDEX_BBB=SHN_ABS --docnum=6 -o %t6.sec.sym
|
||
|
|
# RUN: llvm-readobj -V --dyn-symbols %t6.sec.sym 2>&1 | \
|
||
|
|
# RUN: FileCheck %s -DFILE=%t6.sec.sym --check-prefix=VERSIONED-SEC-SYM-LLVM
|
||
|
|
# RUN: llvm-readelf -V --dyn-symbols %t6.sec.sym 2>&1 | \
|
||
|
|
# RUN: FileCheck %s -DFILE=%t6.sec.sym --check-prefix=VERSIONED-SEC-SYM-GNU
|
||
|
|
|
||
|
|
# VERSIONED-SEC-SYM-LLVM: DynamicSymbols [
|
||
|
|
# VERSIONED-SEC-SYM-LLVM: Name: localversym (28)
|
||
|
|
# VERSIONED-SEC-SYM-LLVM: Name: globalversym (40)
|
||
|
|
# VERSIONED-SEC-SYM-LLVM: Name: aaa@v2 (57)
|
||
|
|
# VERSIONED-SEC-SYM-LLVM: warning: '[[FILE]]': unable to get section index for symbol with st_shndx = 0xfff1 (SHN_ABS)
|
||
|
|
# VERSIONED-SEC-SYM-LLVM: Name: <?> (0)
|
||
|
|
# VERSIONED-SEC-SYM-LLVM: warning: '[[FILE]]': unable to get section index for symbol with st_shndx = 0x0 (SHN_UNDEF)
|
||
|
|
# VERSIONED-SEC-SYM-LLVM: Name: <?> (0)
|
||
|
|
# VERSIONED-SEC-SYM-LLVM: Name: ddd@v5hidden (53)
|
||
|
|
# VERSIONED-SEC-SYM-LLVM: VersionSymbols [
|
||
|
|
# VERSIONED-SEC-SYM-LLVM: Name: localversym
|
||
|
|
# VERSIONED-SEC-SYM-LLVM: Name: globalversym
|
||
|
|
# VERSIONED-SEC-SYM-LLVM: Name: aaa@v2
|
||
|
|
# VERSIONED-SEC-SYM-LLVM: Name: <?>
|
||
|
|
# VERSIONED-SEC-SYM-LLVM: Name: <?>
|
||
|
|
# VERSIONED-SEC-SYM-LLVM: Name: ddd@v5hidden
|
||
|
|
|
||
|
|
# VERSIONED-SEC-SYM-GNU: Symbol table '.dynsym' contains 7 entries:
|
||
|
|
# VERSIONED-SEC-SYM-GNU: Num: {{.*}} Ndx Name
|
||
|
|
# VERSIONED-SEC-SYM-GNU: 1: {{.*}} UND localversym
|
||
|
|
# VERSIONED-SEC-SYM-GNU-NEXT: 2: {{.*}} UND globalversym
|
||
|
|
# VERSIONED-SEC-SYM-GNU-NEXT: 3: {{.*}} UND aaa@v2
|
||
|
|
# VERSIONED-SEC-SYM-GNU-NEXT: warning: '[[FILE]]': unable to get section index for symbol with st_shndx = 0xfff1 (SHN_ABS)
|
||
|
|
# VERSIONED-SEC-SYM-GNU-NEXT: 4: {{.*}} ABS <?>
|
||
|
|
# VERSIONED-SEC-SYM-GNU-NEXT: warning: '[[FILE]]': unable to get section index for symbol with st_shndx = 0x0 (SHN_UNDEF)
|
||
|
|
# VERSIONED-SEC-SYM-GNU-NEXT: 5: {{.*}} UND <?>
|
||
|
|
# VERSIONED-SEC-SYM-GNU-NEXT: 6: {{.*}} UND ddd@v5hidden
|
||
|
|
|
||
|
|
## Check we print a proper warning when an unnamed versioned section symbol has st_shndx = SHN_XINDEX, but there
|
||
|
|
## is no SHT_SYMTAB_SHNDX section in the object.
|
||
|
|
# RUN: yaml2obj %s -DTYPE=STT_SECTION -DNAME="''" -DINDEX_BBB=SHN_XINDEX --docnum=6 -o %t6.sec.xindex.sym
|
||
|
|
# RUN: llvm-readobj -V --dyn-symbols %t6.sec.xindex.sym 2>&1 | \
|
||
|
|
# RUN: FileCheck %s -DFILE=%t6.sec.xindex.sym --check-prefix=VERSIONED-SEC-SYM-XINDEX-LLVM
|
||
|
|
# RUN: llvm-readelf -V --dyn-symbols %t6.sec.xindex.sym 2>&1 | \
|
||
|
|
# RUN: FileCheck %s -DFILE=%t6.sec.xindex.sym --check-prefix=VERSIONED-SEC-SYM-XINDEX-GNU
|
||
|
|
|
||
|
|
# VERSIONED-SEC-SYM-XINDEX-LLVM: Name: aaa@v2 (57)
|
||
|
|
# VERSIONED-SEC-SYM-XINDEX-LLVM: warning: '[[FILE]]': found an extended symbol index (4), but unable to locate the extended symbol index table
|
||
|
|
# VERSIONED-SEC-SYM-XINDEX-LLVM-NEXT: Symbol {
|
||
|
|
# VERSIONED-SEC-SYM-XINDEX-LLVM-NEXT: Name: <?> (0)
|
||
|
|
|
||
|
|
# VERSIONED-SEC-SYM-XINDEX-GNU: 3: {{.*}} UND aaa@v2
|
||
|
|
# VERSIONED-SEC-SYM-XINDEX-GNU-NEXT: warning: '[[FILE]]': found an extended symbol index (4), but unable to locate the extended symbol index table
|
||
|
|
# VERSIONED-SEC-SYM-XINDEX-GNU-NEXT: 4: {{.*}} RSV[0xffff] <?>
|
||
|
|
|
||
|
|
## Case 8: Check what we print when:
|
||
|
|
## a) The dynamic symbol table does not exist.
|
||
|
|
# RUN: yaml2obj %s --docnum=7 -o %t7
|
||
|
|
# RUN: llvm-readobj --dyn-symbols %t7 | FileCheck %s --check-prefix=NO-DYNSYM-LLVM
|
||
|
|
# RUN: llvm-readelf --dyn-symbols %t7 | count 0
|
||
|
|
## b) The dynamic symbol table has a size of 0.
|
||
|
|
# RUN: yaml2obj %s --docnum=8 -o %t8
|
||
|
|
# RUN: llvm-readobj --dyn-symbols %t8 | FileCheck %s --check-prefix=NO-DYNSYM-LLVM
|
||
|
|
# RUN: llvm-readelf --dyn-symbols %t8 | count 0
|
||
|
|
## c) The dynamic symbol table only contains the null symbol.
|
||
|
|
# RUN: yaml2obj %s --docnum=9 -o %t9
|
||
|
|
# RUN: llvm-readobj --dyn-symbols %t9 | FileCheck %s --check-prefix=DYNSYM-EMPTY-LLVM
|
||
|
|
# RUN: llvm-readelf --dyn-symbols %t9 | FileCheck %s --check-prefix=DYNSYM-EMPTY-GNU
|
||
|
|
|
||
|
|
# NO-DYNSYM-LLVM: DynamicSymbols [
|
||
|
|
# NO-DYNSYM-LLVM-NEXT: ]
|
||
|
|
|
||
|
|
# DYNSYM-EMPTY-LLVM: DynamicSymbols [
|
||
|
|
# DYNSYM-EMPTY-LLVM-NEXT: Symbol {
|
||
|
|
# DYNSYM-EMPTY-LLVM-NEXT: Name: (0)
|
||
|
|
# DYNSYM-EMPTY-LLVM-NEXT: Value: 0x0
|
||
|
|
# DYNSYM-EMPTY-LLVM-NEXT: Size: 0
|
||
|
|
# DYNSYM-EMPTY-LLVM-NEXT: Binding: Local (0x0)
|
||
|
|
# DYNSYM-EMPTY-LLVM-NEXT: Type: None (0x0)
|
||
|
|
# DYNSYM-EMPTY-LLVM-NEXT: Other: 0
|
||
|
|
# DYNSYM-EMPTY-LLVM-NEXT: Section: Undefined (0x0)
|
||
|
|
# DYNSYM-EMPTY-LLVM-NEXT: }
|
||
|
|
# DYNSYM-EMPTY-LLVM-NEXT: ]
|
||
|
|
|
||
|
|
# DYNSYM-EMPTY-GNU: Symbol table '.dynsym' contains 1 entries:
|
||
|
|
# DYNSYM-EMPTY-GNU-NEXT: Num: Value Size Type Bind Vis Ndx Name
|
||
|
|
# DYNSYM-EMPTY-GNU-NEXT: 0: 00000000 0 NOTYPE LOCAL DEFAULT UND
|
||
|
|
|
||
|
|
--- !ELF
|
||
|
|
FileHeader:
|
||
|
|
Class: ELFCLASS32
|
||
|
|
Data: ELFDATA2LSB
|
||
|
|
Type: ET_DYN
|
||
|
|
|
||
|
|
--- !ELF
|
||
|
|
FileHeader:
|
||
|
|
Class: ELFCLASS32
|
||
|
|
Data: ELFDATA2LSB
|
||
|
|
Type: ET_DYN
|
||
|
|
Sections:
|
||
|
|
- Name: .dynsym
|
||
|
|
Type: SHT_DYNSYM
|
||
|
|
Size: 0
|
||
|
|
|
||
|
|
--- !ELF
|
||
|
|
FileHeader:
|
||
|
|
Class: ELFCLASS32
|
||
|
|
Data: ELFDATA2LSB
|
||
|
|
Type: ET_DYN
|
||
|
|
DynamicSymbols: []
|
||
|
|
|
||
|
|
## Case 9: Check what we print when:
|
||
|
|
## a) The size of the dynamic symbol table is not a multiple of its entry size.
|
||
|
|
# RUN: yaml2obj %s --docnum=10 -o %t10
|
||
|
|
# RUN: llvm-readobj --dyn-symbols %t10 2>&1 | FileCheck %s -DFILE=%t10 --check-prefix=DYNSYM-SIZE-INVALID1
|
||
|
|
# RUN: llvm-readelf --dyn-symbols %t10 2>&1 | FileCheck %s -DFILE=%t10 --check-prefix=DYNSYM-SIZE-INVALID1
|
||
|
|
|
||
|
|
# DYNSYM-SIZE-INVALID1: warning: '[[FILE]]': SHT_DYNSYM section with index 1 has invalid size (0x1) or entry size (0x10)
|
||
|
|
|
||
|
|
## b) The same, but the DT_SYMTAB tag is present. In this case the dynamic tag has priority over the
|
||
|
|
## information about a location and an entity size of the dynamic symbol table from the section header.
|
||
|
|
## The code uses sizeof(Elf_Sym) for an entity size, so it can't be incorrect and
|
||
|
|
## the message printed is a bit shorter.
|
||
|
|
# RUN: yaml2obj %s --docnum=11 -o %t11
|
||
|
|
# RUN: llvm-readobj --dyn-symbols %t11 2>&1 | FileCheck %s -DFILE=%t11 --check-prefix=DYNSYM-SIZE-INVALID2
|
||
|
|
# RUN: llvm-readelf --dyn-symbols %t11 2>&1 | FileCheck %s -DFILE=%t11 --check-prefix=DYNSYM-SIZE-INVALID2
|
||
|
|
|
||
|
|
# DYNSYM-SIZE-INVALID2: warning: '[[FILE]]': SHT_DYNSYM section with index 2 has invalid size (0x1){{$}}
|
||
|
|
|
||
|
|
## c) In the case when the DT_SYMENT tag is present, we report when it's value does not match the
|
||
|
|
# value of the symbol size for the platform.
|
||
|
|
# RUN: yaml2obj %s -D BITS=32 --docnum=12 -o %t12
|
||
|
|
# RUN: llvm-readobj --dyn-symbols %t12 2>&1 | \
|
||
|
|
# RUN: FileCheck %s -DFILE=%t12 --implicit-check-not=warning: --check-prefix=DYNSYM-SIZE-INVALID3
|
||
|
|
# RUN: llvm-readelf --dyn-symbols %t12 2>&1 | \
|
||
|
|
# RUN: FileCheck %s -DFILE=%t12 --implicit-check-not=warning: --check-prefix=DYNSYM-SIZE-INVALID3
|
||
|
|
# RUN: yaml2obj %s -D BITS=64 --docnum=12 -o %t13
|
||
|
|
# RUN: llvm-readobj --dyn-symbols %t13 2>&1 | \
|
||
|
|
# RUN: FileCheck %s -DFILE=%t13 --implicit-check-not=warning: --check-prefix=DYNSYM-SIZE-INVALID4
|
||
|
|
# RUN: llvm-readelf --dyn-symbols %t13 2>&1 | \
|
||
|
|
# RUN: FileCheck %s -DFILE=%t13 --implicit-check-not=warning: --check-prefix=DYNSYM-SIZE-INVALID4
|
||
|
|
|
||
|
|
# DYNSYM-SIZE-INVALID3: warning: '[[FILE]]': DT_SYMENT value of 0x123 is not the size of a symbol (0x10){{$}}
|
||
|
|
# DYNSYM-SIZE-INVALID4: warning: '[[FILE]]': DT_SYMENT value of 0x123 is not the size of a symbol (0x18){{$}}
|
||
|
|
|
||
|
|
--- !ELF
|
||
|
|
FileHeader:
|
||
|
|
Class: ELFCLASS32
|
||
|
|
Data: ELFDATA2LSB
|
||
|
|
Type: ET_DYN
|
||
|
|
Sections:
|
||
|
|
- Name: .dynsym
|
||
|
|
Type: SHT_DYNSYM
|
||
|
|
Size: 0x1
|
||
|
|
|
||
|
|
--- !ELF
|
||
|
|
FileHeader:
|
||
|
|
Class: ELFCLASS64
|
||
|
|
Data: ELFDATA2LSB
|
||
|
|
Type: ET_DYN
|
||
|
|
Sections:
|
||
|
|
- Name: .dynamic
|
||
|
|
Type: SHT_DYNAMIC
|
||
|
|
Entries:
|
||
|
|
- Tag: DT_SYMTAB
|
||
|
|
Value: 0x100
|
||
|
|
- Tag: DT_NULL
|
||
|
|
Value: 0
|
||
|
|
- Name: .dynsym
|
||
|
|
Type: SHT_DYNSYM
|
||
|
|
Address: 0x100
|
||
|
|
Size: 0x1
|
||
|
|
ProgramHeaders:
|
||
|
|
- Type: PT_LOAD
|
||
|
|
VAddr: 0x100
|
||
|
|
FirstSec: .dynsym
|
||
|
|
LastSec: .dynsym
|
||
|
|
|
||
|
|
--- !ELF
|
||
|
|
FileHeader:
|
||
|
|
Class: ELFCLASS[[BITS]]
|
||
|
|
Data: ELFDATA2LSB
|
||
|
|
Type: ET_DYN
|
||
|
|
Sections:
|
||
|
|
- Name: .dynamic
|
||
|
|
Type: SHT_DYNAMIC
|
||
|
|
Entries:
|
||
|
|
- Tag: DT_SYMENT
|
||
|
|
Value: 0x123
|
||
|
|
- Tag: DT_SYMENT
|
||
|
|
Value: 0x123
|
||
|
|
- Tag: DT_NULL
|
||
|
|
Value: 0
|
||
|
|
|
||
|
|
## Case 10: Check we report a warning when the DT_STRSZ value is broken so that the dynamic string
|
||
|
|
## table goes past the end of the file. Document we stop dumping symbols and report an error.
|
||
|
|
|
||
|
|
# RUN: yaml2obj %s --docnum=13 -o %t14
|
||
|
|
# RUN: llvm-readobj --dyn-symbols %t14 2>&1 | \
|
||
|
|
# RUN: FileCheck %s -DFILE=%t14 --check-prefix=DYNSTR-INVALID-LLVM
|
||
|
|
# RUN: llvm-readelf --dyn-symbols %t14 2>&1 | \
|
||
|
|
# RUN: FileCheck %s -DFILE=%t14 --check-prefix=DYNSTR-INVALID-GNU
|
||
|
|
|
||
|
|
# DYNSTR-INVALID-LLVM: warning: '[[FILE]]': the dynamic string table at 0x78 goes past the end of the file (0x2a8) with DT_STRSZ = 0xffffffff
|
||
|
|
# DYNSTR-INVALID-LLVM: DynamicSymbols [
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Symbol {
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Name: (0)
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Value: 0x0
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Size: 0
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Binding: Local (0x0)
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Type: None (0x0)
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Other: 0
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Section: Undefined (0x0)
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: }
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: warning: '[[FILE]]': st_name (0xffffff00) is past the end of the string table of size 0x6
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Symbol {
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Name: <?> (4294967040)
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Value: 0x0
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Size: 0
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Binding: Local (0x0)
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Type: None (0x0)
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Other: 0
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Section: Undefined (0x0)
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: }
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Symbol {
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Name: test (1)
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Value: 0x0
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Size: 0
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Binding: Local (0x0)
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Type: None (0x0)
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Other: 0
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: Section: Undefined (0x0)
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: }
|
||
|
|
# DYNSTR-INVALID-LLVM-NEXT: ]
|
||
|
|
|
||
|
|
# DYNSTR-INVALID-GNU: warning: '[[FILE]]': the dynamic string table at 0x78 goes past the end of the file (0x2a8) with DT_STRSZ = 0xffffffff
|
||
|
|
# DYNSTR-INVALID-GNU: Symbol table '.dynsym' contains 3 entries:
|
||
|
|
# DYNSTR-INVALID-GNU-NEXT: Num: Value Size Type Bind Vis Ndx Name
|
||
|
|
# DYNSTR-INVALID-GNU-NEXT: 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
|
||
|
|
# DYNSTR-INVALID-GNU-NEXT: warning: '[[FILE]]': st_name (0xffffff00) is past the end of the string table of size 0x6
|
||
|
|
# DYNSTR-INVALID-GNU-NEXT: 1: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND <?>
|
||
|
|
# DYNSTR-INVALID-GNU-NEXT: 2: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND test
|
||
|
|
|
||
|
|
--- !ELF
|
||
|
|
FileHeader:
|
||
|
|
Class: ELFCLASS64
|
||
|
|
Data: ELFDATA2LSB
|
||
|
|
Type: ET_EXEC
|
||
|
|
Sections:
|
||
|
|
- Name: .dynstr
|
||
|
|
Type: SHT_STRTAB
|
||
|
|
Flags: [ SHF_ALLOC ]
|
||
|
|
Content: '007465737400' ## '\0', 'test', '\0'
|
||
|
|
- Name: .dynamic
|
||
|
|
Type: SHT_DYNAMIC
|
||
|
|
Flags: [ SHF_ALLOC ]
|
||
|
|
Link: .dynstr
|
||
|
|
Entries:
|
||
|
|
- Tag: DT_STRTAB
|
||
|
|
Value: 0x0
|
||
|
|
- Tag: DT_STRSZ
|
||
|
|
Value: 0xffffffff
|
||
|
|
- Tag: DT_NULL
|
||
|
|
Value: 0x0
|
||
|
|
DynamicSymbols:
|
||
|
|
- StName: 0xffffff00
|
||
|
|
## An arbitrary valid symbol to document we report an error before dumping it.
|
||
|
|
- StName: 0x1
|
||
|
|
ProgramHeaders:
|
||
|
|
- Type: PT_LOAD
|
||
|
|
Flags: [ PF_R ]
|
||
|
|
FirstSec: .dynstr
|
||
|
|
LastSec: .dynamic
|
||
|
|
|
||
|
|
## Case 11: check various warnings we report when fields of the SHT_DYNSYM section are broken.
|
||
|
|
|
||
|
|
## a) check we report a warning when the entry size of the dynamic symbol table is zero.
|
||
|
|
# RUN: yaml2obj %s --docnum=14 -DENTSIZE=0x0 -o %t15.entsize
|
||
|
|
# RUN: llvm-readobj --dyn-symbols %t15.entsize 2>&1 | FileCheck %s -DFILE=%t15.entsize --check-prefix=DYNSYM-ZERO-ENTSIZE-LLVM
|
||
|
|
# RUN: llvm-readelf --dyn-symbols %t15.entsize 2>&1 | \
|
||
|
|
# RUN: FileCheck %s -DFILE=%t15.entsize --check-prefix=DYNSYM-ZERO-ENTSIZE-GNU --implicit-check-not="Symbol table"
|
||
|
|
|
||
|
|
# DYNSYM-ZERO-ENTSIZE-LLVM: DynamicSymbols [
|
||
|
|
# DYNSYM-ZERO-ENTSIZE-LLVM-NEXT: warning: '[[FILE]]': SHT_DYNSYM section with index 1 has invalid size (0x20) or entry size (0x0)
|
||
|
|
# DYNSYM-ZERO-ENTSIZE-LLVM-NEXT: ]
|
||
|
|
|
||
|
|
# DYNSYM-ZERO-ENTSIZE-GNU: warning: '[[FILE]]': SHT_DYNSYM section with index 1 has invalid size (0x20) or entry size (0x0)
|
||
|
|
|
||
|
|
--- !ELF
|
||
|
|
FileHeader:
|
||
|
|
Class: ELFCLASS32
|
||
|
|
Data: ELFDATA2LSB
|
||
|
|
Type: ET_DYN
|
||
|
|
Sections:
|
||
|
|
- Name: .dynsym
|
||
|
|
Type: SHT_DYNSYM
|
||
|
|
EntSize: [[ENTSIZE=<none>]]
|
||
|
|
Link: [[LINK=<none>]]
|
||
|
|
ShOffset: [[OFFSET=<none>]]
|
||
|
|
ShSize: [[SIZE=<none>]]
|
||
|
|
DynamicSymbols:
|
||
|
|
- Name: foo
|
||
|
|
|
||
|
|
## b) check we report a warning when the sh_offset field of the SHT_DYNSYM section is
|
||
|
|
## invalid (sh_offset + sh_size is greater than the file size). Check we don't dump
|
||
|
|
## dynamic symbols in this case.
|
||
|
|
# RUN: yaml2obj --docnum=14 %s -DOFFSET=0xffffffff -o %t15.offset
|
||
|
|
# RUN: llvm-readobj %t15.offset --dyn-symbols 2>&1 | FileCheck %s -DFILE=%t15.offset \
|
||
|
|
# RUN: --check-prefixes=OFFSET-BROKEN,OFFSET-BROKEN-LLVM
|
||
|
|
# RUN: llvm-readelf %t15.offset --dyn-symbols 2>&1 | FileCheck %s -DFILE=%t15.offset \
|
||
|
|
# RUN: --implicit-check-not="Symbol table" --check-prefix=OFFSET-BROKEN
|
||
|
|
|
||
|
|
# OFFSET-BROKEN: warning: '[[FILE]]': unable to read dynamic symbols from SHT_DYNSYM section with index 1: offset (0xffffffff) + size (0x20) is greater than the file size (0x148)
|
||
|
|
|
||
|
|
# OFFSET-BROKEN-LLVM: DynamicSymbols [
|
||
|
|
# OFFSET-BROKEN-LLVM-NEXT: ]
|
||
|
|
|
||
|
|
## c) check we report a warning when the sh_size field of the SHT_DYNSYM section is
|
||
|
|
## invalid (sh_offset + sh_size is greater than the file size). Check we don't dump
|
||
|
|
## dynamic symbols in this case.
|
||
|
|
# RUN: yaml2obj --docnum=14 %s -DSIZE=0xffffffff -o %t15.size
|
||
|
|
# RUN: llvm-readobj %t15.size --dyn-symbols 2>&1 | FileCheck %s -DFILE=%t15.size \
|
||
|
|
# RUN: --check-prefixes=SIZE-BROKEN,SIZE-BROKEN-LLVM
|
||
|
|
# RUN: llvm-readelf %t15.size --dyn-symbols 2>&1 | FileCheck %s -DFILE=%t15.size \
|
||
|
|
# RUN: --implicit-check-not="Symbol table" --check-prefix=SIZE-BROKEN
|
||
|
|
|
||
|
|
# SIZE-BROKEN: warning: '[[FILE]]': unable to read dynamic symbols from SHT_DYNSYM section with index 1: offset (0x34) + size (0xffffffff) is greater than the file size (0x148)
|
||
|
|
|
||
|
|
# SIZE-BROKEN-LLVM: DynamicSymbols [
|
||
|
|
# SIZE-BROKEN-LLVM-NEXT: ]
|
||
|
|
|
||
|
|
## d) check we report a warning when the sh_link field of the SHT_DYNSYM section
|
||
|
|
## is not a valid section index or is not an index of a valid string table.
|
||
|
|
# RUN: yaml2obj --docnum=14 %s -DLINK=0xffffffff -o %t16.link
|
||
|
|
# RUN: llvm-readobj %t16.link --dyn-symbols 2>&1 | FileCheck %s -DFILE=%t16.link \
|
||
|
|
# RUN: --check-prefixes=LINK-BROKEN1,LINK-BROKEN-LLVM --implicit-check-not=warning:
|
||
|
|
# RUN: llvm-readelf %t16.link --dyn-symbols 2>&1 | FileCheck %s -DFILE=%t16.link \
|
||
|
|
# RUN: --check-prefixes=LINK-BROKEN1,LINK-BROKEN-GNU --implicit-check-not=warning:
|
||
|
|
|
||
|
|
## Also test that we are able to dump section headers even if the .dynsym section's sh_link field is broken.
|
||
|
|
# RUN: llvm-readobj %t16.link --section-headers --dyn-symbols 2>&1 | FileCheck %s -DFILE=%t16.link \
|
||
|
|
# RUN: --check-prefixes=LINK-BROKEN1,LINK-SEC-HDRS-LLVM,LINK-BROKEN-LLVM --implicit-check-not=warning:
|
||
|
|
# RUN: llvm-readelf %t16.link --section-headers --dyn-symbols 2>&1 | FileCheck %s -DFILE=%t16.link \
|
||
|
|
# RUN: --check-prefixes=LINK-BROKEN1,LINK-SEC-HDRS-GNU,LINK-BROKEN-GNU
|
||
|
|
|
||
|
|
# RUN: yaml2obj --docnum=14 %s -DLINK=0x0 -o %t16.link.0
|
||
|
|
# RUN: llvm-readobj %t16.link.0 --dyn-symbols 2>&1 | FileCheck %s -DFILE=%t16.link.0 \
|
||
|
|
# RUN: --check-prefixes=LINK-BROKEN2,LINK-BROKEN-LLVM --implicit-check-not=warning:
|
||
|
|
# RUN: llvm-readelf %t16.link.0 --dyn-symbols 2>&1 | FileCheck %s -DFILE=%t16.link.0 \
|
||
|
|
# RUN: --check-prefixes=LINK-BROKEN2,LINK-BROKEN-GNU --implicit-check-not=warning:
|
||
|
|
|
||
|
|
## Also test that we are able to dump section headers even if the .dynsym section's sh_link field is broken.
|
||
|
|
# RUN: llvm-readobj %t16.link.0 --section-headers --dyn-symbols 2>&1 | FileCheck %s -DFILE=%t16.link.0 \
|
||
|
|
# RUN: --check-prefixes=LINK-BROKEN2,LINK-SEC-HDRS-LLVM,LINK-BROKEN-LLVM --implicit-check-not=warning:
|
||
|
|
# RUN: llvm-readelf %t16.link.0 --section-headers --dyn-symbols 2>&1 | FileCheck %s -DFILE=%t16.link.0 \
|
||
|
|
# RUN: --check-prefixes=LINK-BROKEN2,LINK-SEC-HDRS-GNU,LINK-BROKEN-GNU --implicit-check-not=warning:
|
||
|
|
|
||
|
|
# LINK-BROKEN1: warning: '[[FILE]]': unable to get the string table for the SHT_DYNSYM section with index 1: invalid section index: 4294967295
|
||
|
|
# LINK-BROKEN2: warning: '[[FILE]]': unable to get the string table for the SHT_DYNSYM section with index 1: invalid sh_type for string table section [index 0]: expected SHT_STRTAB, but got SHT_NULL
|
||
|
|
|
||
|
|
# LINK-SEC-HDRS-LLVM: Sections [
|
||
|
|
# LINK-SEC-HDRS-GNU: There are 5 section headers, starting at offset 0x80:
|
||
|
|
|
||
|
|
# LINK-BROKEN-LLVM: DynamicSymbols [
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: warning: '[[FILE]]': st_name (0x0) is past the end of the string table of size 0x0
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: Symbol {
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: Name: <?> (0)
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: Value: 0x0
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: Size: 0
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: Binding: Local (0x0)
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: Type: None (0x0)
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: Other: 0
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: Section: Undefined (0x0)
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: }
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: warning: '[[FILE]]': st_name (0x1) is past the end of the string table of size 0x0
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: Symbol {
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: Name: <?> (1)
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: Value: 0x0
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: Size: 0
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: Binding: Local (0x0)
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: Type: None (0x0)
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: Other: 0
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: Section: Undefined (0x0)
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: }
|
||
|
|
# LINK-BROKEN-LLVM-NEXT: ]
|
||
|
|
|
||
|
|
# LINK-BROKEN-GNU: Symbol table '.dynsym' contains 2 entries:
|
||
|
|
# LINK-BROKEN-GNU-NEXT: Num: Value Size Type Bind Vis Ndx Name
|
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# LINK-BROKEN-GNU-NEXT: warning: '[[FILE]]': st_name (0x0) is past the end of the string table of size 0x0
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# LINK-BROKEN-GNU-NEXT: 0: 00000000 0 NOTYPE LOCAL DEFAULT UND <?>
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# LINK-BROKEN-GNU-NEXT: warning: '[[FILE]]': st_name (0x1) is past the end of the string table of size 0x0
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# LINK-BROKEN-GNU-NEXT: 1: 00000000 0 NOTYPE LOCAL DEFAULT UND <?>
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