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[Object/ELF.h] - Improve error reporting.
The errors coming from ELF.h are usually not very useful because they are uninformative. This patch is a first step to improve the situation. I tested this patch with a run of check-llvm and found that few messages are untested. In this patch, I did not add more tests but marked all such cases with a "TODO" comment. For all tested messages I extended the error text to provide more details (see test cases changed). Differential revision: https://reviews.llvm.org/D64014 llvm-svn: 365183
This commit is contained in:
George Rimar
parent
41ec2302bf
commit
7add0fa08e
@ -44,10 +44,26 @@ getElfArchType(StringRef Object) {
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(uint8_t)Object[ELF::EI_DATA]);
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}
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static inline Error createError(StringRef Err) {
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static inline Error createError(const Twine &Err) {
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return make_error<StringError>(Err, object_error::parse_failed);
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}
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template <class ELFT> class ELFFile;
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template <class ELFT>
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std::string getSecIndexForError(const ELFFile<ELFT> *Obj,
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const typename ELFT::Shdr *Sec) {
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auto TableOrErr = Obj->sections();
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if (TableOrErr)
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return "[index " + std::to_string(Sec - &TableOrErr->front()) + "]";
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// To make this helper be more convenient for error reporting purposes we
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// drop the error. But really it should never be triggered. Before this point,
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// our code should have called 'sections()' and reported a proper error on
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// failure.
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llvm::consumeError(TableOrErr.takeError());
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return "[unknown index]";
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}
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template <class ELFT>
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class ELFFile {
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public:
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@ -162,11 +178,16 @@ public:
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/// Iterate over program header table.
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Expected<Elf_Phdr_Range> program_headers() const {
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if (getHeader()->e_phnum && getHeader()->e_phentsize != sizeof(Elf_Phdr))
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return createError("invalid e_phentsize");
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return createError("invalid e_phentsize: " +
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Twine(getHeader()->e_phentsize));
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if (getHeader()->e_phoff +
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(getHeader()->e_phnum * getHeader()->e_phentsize) >
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getBufSize())
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return createError("program headers longer than binary");
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return createError("program headers are longer than binary of size " +
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Twine(getBufSize()) + ": e_phoff = 0x" +
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Twine::utohexstr(getHeader()->e_phoff) +
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", e_phnum = " + Twine(getHeader()->e_phnum) +
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", e_phentsize = " + Twine(getHeader()->e_phentsize));
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auto *Begin =
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reinterpret_cast<const Elf_Phdr *>(base() + getHeader()->e_phoff);
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return makeArrayRef(Begin, Begin + getHeader()->e_phnum);
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@ -181,10 +202,12 @@ public:
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/// be checked after iteration ends.
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Elf_Note_Iterator notes_begin(const Elf_Phdr &Phdr, Error &Err) const {
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if (Phdr.p_type != ELF::PT_NOTE) {
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// TODO: this error is untested.
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Err = createError("attempt to iterate notes of non-note program header");
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return Elf_Note_Iterator(Err);
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}
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if (Phdr.p_offset + Phdr.p_filesz > getBufSize()) {
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// TODO: this error is untested.
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Err = createError("invalid program header offset/size");
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return Elf_Note_Iterator(Err);
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}
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@ -200,10 +223,12 @@ public:
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/// be checked after iteration ends.
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Elf_Note_Iterator notes_begin(const Elf_Shdr &Shdr, Error &Err) const {
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if (Shdr.sh_type != ELF::SHT_NOTE) {
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// TODO: this error is untested.
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Err = createError("attempt to iterate notes of non-note section");
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return Elf_Note_Iterator(Err);
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}
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if (Shdr.sh_offset + Shdr.sh_size > getBufSize()) {
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// TODO: this error is untested.
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Err = createError("invalid section offset/size");
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return Elf_Note_Iterator(Err);
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}
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@ -271,7 +296,7 @@ template <class ELFT>
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inline Expected<const typename ELFT::Shdr *>
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getSection(typename ELFT::ShdrRange Sections, uint32_t Index) {
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if (Index >= Sections.size())
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return createError("invalid section index");
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return createError("invalid section index: " + Twine(Index));
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return &Sections[Index];
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}
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@ -283,7 +308,10 @@ getExtendedSymbolTableIndex(const typename ELFT::Sym *Sym,
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assert(Sym->st_shndx == ELF::SHN_XINDEX);
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unsigned Index = Sym - FirstSym;
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if (Index >= ShndxTable.size())
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return createError("index past the end of the symbol table");
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return createError(
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"extended symbol index (" + Twine(Index) +
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") is past the end of the SHT_SYMTAB_SHNDX section of size " +
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Twine(ShndxTable.size()));
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// The size of the table was checked in getSHNDXTable.
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return ShndxTable[Index];
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@ -333,6 +361,7 @@ template <class ELFT>
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inline Expected<const typename ELFT::Sym *>
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getSymbol(typename ELFT::SymRange Symbols, uint32_t Index) {
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if (Index >= Symbols.size())
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// TODO: this error is untested.
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return createError("invalid symbol index");
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return &Symbols[Index];
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}
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@ -351,18 +380,26 @@ template <typename T>
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Expected<ArrayRef<T>>
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ELFFile<ELFT>::getSectionContentsAsArray(const Elf_Shdr *Sec) const {
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if (Sec->sh_entsize != sizeof(T) && sizeof(T) != 1)
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return createError("invalid sh_entsize");
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return createError("section " + getSecIndexForError(this, Sec) +
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" has an invalid sh_entsize: " + Twine(Sec->sh_entsize));
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uintX_t Offset = Sec->sh_offset;
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uintX_t Size = Sec->sh_size;
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if (Size % sizeof(T))
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return createError("size is not a multiple of sh_entsize");
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return createError("section " + getSecIndexForError(this, Sec) +
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" has an invalid sh_size (" + Twine(Size) +
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") which is not a multiple of its sh_entsize (" +
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Twine(Sec->sh_entsize) + ")");
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if ((std::numeric_limits<uintX_t>::max() - Offset < Size) ||
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Offset + Size > Buf.size())
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return createError("invalid section offset");
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return createError("section " + getSecIndexForError(this, Sec) +
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" has a sh_offset (0x" + Twine::utohexstr(Offset) +
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") + sh_size (0x" + Twine(Size) +
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") that cannot be represented");
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if (Offset % alignof(T))
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// TODO: this error is untested.
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return createError("unaligned data");
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const T *Start = reinterpret_cast<const T *>(base() + Offset);
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@ -436,6 +473,7 @@ ELFFile<ELFT>::getSectionStringTable(Elf_Shdr_Range Sections) const {
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if (!Index) // no section string table.
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return "";
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if (Index >= Sections.size())
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// TODO: this error is untested.
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return createError("invalid section index");
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return getStringTable(&Sections[Index]);
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}
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@ -445,7 +483,9 @@ template <class ELFT> ELFFile<ELFT>::ELFFile(StringRef Object) : Buf(Object) {}
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template <class ELFT>
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Expected<ELFFile<ELFT>> ELFFile<ELFT>::create(StringRef Object) {
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if (sizeof(Elf_Ehdr) > Object.size())
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return createError("Invalid buffer");
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return createError("invalid buffer: the size (" + Twine(Object.size()) +
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") is smaller than an ELF header (" +
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Twine(sizeof(Elf_Ehdr)) + ")");
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return ELFFile(Object);
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}
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@ -456,16 +496,18 @@ Expected<typename ELFT::ShdrRange> ELFFile<ELFT>::sections() const {
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return ArrayRef<Elf_Shdr>();
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if (getHeader()->e_shentsize != sizeof(Elf_Shdr))
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return createError(
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"invalid section header entry size (e_shentsize) in ELF header");
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return createError("invalid e_shentsize in ELF header: " +
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Twine(getHeader()->e_shentsize));
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const uint64_t FileSize = Buf.size();
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if (SectionTableOffset + sizeof(Elf_Shdr) > FileSize)
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return createError("section header table goes past the end of the file");
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return createError(
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"section header table goes past the end of the file: e_shoff = 0x" +
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Twine::utohexstr(SectionTableOffset));
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// Invalid address alignment of section headers
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if (SectionTableOffset & (alignof(Elf_Shdr) - 1))
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// TODO: this error is untested.
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return createError("invalid alignment of section headers");
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const Elf_Shdr *First =
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@ -476,6 +518,7 @@ Expected<typename ELFT::ShdrRange> ELFFile<ELFT>::sections() const {
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NumSections = First->sh_size;
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if (NumSections > UINT64_MAX / sizeof(Elf_Shdr))
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// TODO: this error is untested.
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return createError("section table goes past the end of file");
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const uint64_t SectionTableSize = NumSections * sizeof(Elf_Shdr);
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@ -502,10 +545,14 @@ template <typename T>
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Expected<const T *> ELFFile<ELFT>::getEntry(const Elf_Shdr *Section,
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uint32_t Entry) const {
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if (sizeof(T) != Section->sh_entsize)
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// TODO: this error is untested.
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return createError("invalid sh_entsize");
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size_t Pos = Section->sh_offset + Entry * sizeof(T);
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if (Pos + sizeof(T) > Buf.size())
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return createError("invalid section offset");
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return createError("unable to access section " +
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getSecIndexForError(this, Section) + " data at 0x" +
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Twine::utohexstr(Pos) +
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": offset goes past the end of file");
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return reinterpret_cast<const T *>(base() + Pos);
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}
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@ -531,6 +578,7 @@ ELFFile<ELFT>::getSection(const StringRef SectionName) const {
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if (*SecNameOrErr == SectionName)
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return &Sec;
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}
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// TODO: this error is untested.
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return createError("invalid section name");
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}
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@ -538,15 +586,24 @@ template <class ELFT>
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Expected<StringRef>
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ELFFile<ELFT>::getStringTable(const Elf_Shdr *Section) const {
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if (Section->sh_type != ELF::SHT_STRTAB)
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return createError("invalid sh_type for string table, expected SHT_STRTAB");
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return createError("invalid sh_type for string table section " +
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getSecIndexForError(this, Section) +
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": expected SHT_STRTAB, but got " +
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object::getELFSectionTypeName(getHeader()->e_machine,
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Section->sh_type));
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auto V = getSectionContentsAsArray<char>(Section);
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if (!V)
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return V.takeError();
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ArrayRef<char> Data = *V;
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if (Data.empty())
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// TODO: this error is untested.
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return createError("empty string table");
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if (Data.back() != '\0')
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return createError("string table non-null terminated");
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return createError(object::getELFSectionTypeName(getHeader()->e_machine,
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Section->sh_type) +
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" string table section " +
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getSecIndexForError(this, Section) +
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" is non-null terminated");
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return StringRef(Data.begin(), Data.size());
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}
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@ -574,9 +631,13 @@ ELFFile<ELFT>::getSHNDXTable(const Elf_Shdr &Section,
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const Elf_Shdr &SymTable = **SymTableOrErr;
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if (SymTable.sh_type != ELF::SHT_SYMTAB &&
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SymTable.sh_type != ELF::SHT_DYNSYM)
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// TODO: this error is untested.
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return createError("invalid sh_type");
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if (V.size() != (SymTable.sh_size / sizeof(Elf_Sym)))
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return createError("invalid section contents size");
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return createError("SHT_SYMTAB_SHNDX section has sh_size (" +
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Twine(SymTable.sh_size) +
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") which is not equal to the number of symbols (" +
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Twine(V.size()) + ")");
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return V;
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}
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@ -595,6 +656,7 @@ ELFFile<ELFT>::getStringTableForSymtab(const Elf_Shdr &Sec,
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Elf_Shdr_Range Sections) const {
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if (Sec.sh_type != ELF::SHT_SYMTAB && Sec.sh_type != ELF::SHT_DYNSYM)
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// TODO: this error is untested.
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return createError(
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"invalid sh_type for symbol table, expected SHT_SYMTAB or SHT_DYNSYM");
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auto SectionOrErr = object::getSection<ELFT>(Sections, Sec.sh_link);
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@ -622,7 +684,11 @@ Expected<StringRef> ELFFile<ELFT>::getSectionName(const Elf_Shdr *Section,
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if (Offset == 0)
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return StringRef();
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if (Offset >= DotShstrtab.size())
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return createError("invalid string offset");
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return createError("a section " + getSecIndexForError(this, Section) +
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" has an invalid sh_name (0x" +
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Twine::utohexstr(Offset) +
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") offset which goes past the end of the "
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"section name string table");
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return StringRef(DotShstrtab.data() + Offset);
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}
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@ -537,12 +537,15 @@ Expected<typename ELFT::DynRange> ELFFile<ELFT>::dynamicEntries() const {
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}
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if (Dyn.empty())
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// TODO: this error is untested.
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return createError("invalid empty dynamic section");
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if (DynSecSize % sizeof(Elf_Dyn) != 0)
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// TODO: this error is untested.
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return createError("malformed dynamic section");
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if (Dyn.back().d_tag != ELF::DT_NULL)
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// TODO: this error is untested.
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return createError("dynamic sections must be DT_NULL terminated");
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return Dyn;
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@ -567,12 +570,14 @@ Expected<const uint8_t *> ELFFile<ELFT>::toMappedAddr(uint64_t VAddr) const {
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});
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if (I == LoadSegments.begin())
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return createError("Virtual address is not in any segment");
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return createError("virtual address is not in any segment: 0x" +
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Twine::utohexstr(VAddr));
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--I;
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const Elf_Phdr &Phdr = **I;
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uint64_t Delta = VAddr - Phdr.p_vaddr;
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if (Delta >= Phdr.p_filesz)
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return createError("Virtual address is not in any segment");
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return createError("virtual address is not in any segment: 0x" +
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Twine::utohexstr(VAddr));
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return base() + Phdr.p_offset + Delta;
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}
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@ -23,4 +23,4 @@
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RUN: not llvm-objdump -private-headers %p/Inputs/invalid-phdr.elf 2>&1 \
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RUN: | FileCheck %s
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CHECK: LLVM ERROR: program headers longer than binary
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CHECK: LLVM ERROR: program headers are longer than binary of size 4162: e_phoff = 0xffffff, e_phnum = 1, e_phentsize = 56
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@ -4,7 +4,7 @@
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# RUN: yaml2obj %s --docnum=1 -o %t1
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# RUN: not llvm-objdump -s %t1 2>&1 | FileCheck %s --check-prefix=INVALIDERR
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# INVALIDERR: Invalid data was encountered while parsing the file
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# INVALIDERR: error: reading file: Invalid data was encountered while parsing the file
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--- !ELF
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FileHeader:
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@ -45,7 +45,7 @@ Sections:
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# RUN: yaml2obj %s --docnum=3 -o %t3
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# RUN: not llvm-dwarfdump -debug-line %t3 2>&1 | FileCheck --check-prefix=RELA %s
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# RELA: Section is not SHT_RELA
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# RELA: LLVM ERROR: Section is not SHT_RELA
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--- !ELF
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FileHeader:
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@ -91,7 +91,7 @@ Sections:
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# RUN: yaml2obj %s --docnum=5 -o %t5
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# RUN: not llvm-objdump -syms %t5 2>&1 | FileCheck --check-prefix=NONULL %s
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# NONULL: string table non-null terminated
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# NONULL: error: {{.*}}: SHT_STRTAB string table section [index 1] is non-null terminated
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--- !ELF
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FileHeader:
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@ -111,7 +111,7 @@ Symbols:
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# RUN: yaml2obj %s --docnum=6 -o %t6
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# RUN: not llvm-readobj --symbols %t6 2>&1 | FileCheck --check-prefix=INVALID-SYM-SIZE %s
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# INVALID-SYM-SIZE: invalid sh_entsize
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# INVALID-SYM-SIZE: error: section [index 1] has an invalid sh_entsize: 32
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--- !ELF
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FileHeader:
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@ -152,7 +152,7 @@ DynamicSymbols:
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# RUN: yaml2obj %s --docnum=8 -o %t8
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# RUN: not llvm-readobj --symbols %t8 2>&1 | FileCheck --check-prefix=INVALID-SYMTAB-LINK %s
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# INVALID-SYMTAB-LINK: invalid section index
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# INVALID-SYMTAB-LINK: error: invalid section index: 255
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--- !ELF
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FileHeader:
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@ -171,7 +171,7 @@ Sections:
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# RUN: yaml2obj %s --docnum=9 -o %t9
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# RUN: not llvm-readobj -S %t9 2>&1 | FileCheck --check-prefix=INVALID-SH-ENTSIZE %s
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# INVALID-SH-ENTSIZE: invalid section header entry size (e_shentsize) in ELF header
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# INVALID-SH-ENTSIZE: error: {{.*}}: invalid e_shentsize in ELF header: 1
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--- !ELF
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FileHeader:
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@ -187,7 +187,7 @@ FileHeader:
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# RUN: yaml2obj %s --docnum=10 -o %t10
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# RUN: not llvm-readobj --symbols %t10 2>&1 | FileCheck --check-prefix=INVALID-SYMTAB-SIZE %s
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# INVALID-SYMTAB-SIZE: size is not a multiple of sh_entsize
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# INVALID-SYMTAB-SIZE: error: section [index 1] has an invalid sh_size (1) which is not a multiple of its sh_entsize (24)
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--- !ELF
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FileHeader:
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@ -207,7 +207,7 @@ Sections:
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# RUN: yaml2obj %s --docnum=11 -o %t11
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# RUN: not llvm-readobj --symbols %t11 2>&1 | FileCheck --check-prefix=INVALID-XINDEX-SIZE %s
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# INVALID-XINDEX-SIZE: invalid section contents size
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# INVALID-XINDEX-SIZE: error: {{.*}}: SHT_SYMTAB_SHNDX section has sh_size (24) which is not equal to the number of symbols (6)
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--- !ELF
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FileHeader:
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@ -227,7 +227,7 @@ Sections:
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# RUN: not llvm-readobj --program-headers %p/Inputs/invalid-e_shnum.elf 2>&1 | \
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# RUN: FileCheck --check-prefix=INVALID-PH-ENTSIZE %s
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# INVALID-PH-ENTSIZE: invalid e_phentsize
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# INVALID-PH-ENTSIZE: error: invalid e_phentsize: 12336
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## Check that llvm-readobj reports an error when we have no SHT_SYMTAB_SHNDX section,
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## but have a symbol referencing it.
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@ -235,7 +235,7 @@ Sections:
|
||||
# RUN: not llvm-readobj --symbols %p/Inputs/invalid-ext-symtab-index.elf-x86-64 2>&1 | \
|
||||
# RUN: FileCheck --check-prefix=INVALID-EXT-SYMTAB-INDEX %s
|
||||
|
||||
# INVALID-EXT-SYMTAB-INDEX: index past the end of the symbol table
|
||||
# INVALID-EXT-SYMTAB-INDEX: error: extended symbol index (0) is past the end of the SHT_SYMTAB_SHNDX section of size 0
|
||||
|
||||
## Check that llvm-readobj reports an error if a relocation section
|
||||
## has a broken sh_offset (past the end of the file).
|
||||
@ -245,7 +245,7 @@ Sections:
|
||||
# RUN: not llvm-readobj -r %t12 2>&1 | FileCheck --check-prefix=INVALID-RELOC-SH-OFFSET %s
|
||||
# RUN: not llvm-readobj -r %t13 2>&1 | FileCheck --check-prefix=INVALID-RELOC-SH-OFFSET %s
|
||||
|
||||
# INVALID-RELOC-SH-OFFSET: invalid section offset
|
||||
# INVALID-RELOC-SH-OFFSET: error: section [index 1] has a sh_offset (0x10000) + sh_size (0x0) that cannot be represented
|
||||
|
||||
--- !ELF
|
||||
FileHeader:
|
||||
@ -275,7 +275,7 @@ Sections:
|
||||
# RUN: yaml2obj %s --docnum=14 -o %t14
|
||||
# RUN: not llvm-readobj --symbols %t14 2>&1 | FileCheck --check-prefix=INVALID-SECTION-SIZE2 %s
|
||||
|
||||
# INVALID-SECTION-SIZE2: invalid section offset
|
||||
# INVALID-SECTION-SIZE2: error: section [index 1] has a sh_offset (0xffffffff) + sh_size (0x27) that cannot be represented
|
||||
|
||||
--- !ELF
|
||||
FileHeader:
|
||||
@ -294,8 +294,8 @@ Sections:
|
||||
# RUN: yaml2obj %s --docnum=15 -o %t15
|
||||
# RUN: not llvm-readobj -S %t15 2>&1 | FileCheck --check-prefix=INVALID-SECTION-NUM %s
|
||||
|
||||
# INVALID-SECTION-NUM: section table goes past the end of file
|
||||
|
||||
# INVALID-SECTION-NUM: error: {{.*}}: section table goes past the end of file
|
||||
|
||||
--- !ELF
|
||||
FileHeader:
|
||||
Class: ELFCLASS64
|
||||
@ -310,7 +310,7 @@ FileHeader:
|
||||
# RUN: yaml2obj %s --docnum=16 -o %t16
|
||||
# RUN: not llvm-readobj -r %t16 2>&1 | FileCheck --check-prefix=INVALID-REL-SYM %s
|
||||
|
||||
# INVALID-REL-SYM: invalid section offset
|
||||
# INVALID-REL-SYM: error: unable to access section [index 2] data at 0x18000180: offset goes past the end of file
|
||||
|
||||
--- !ELF
|
||||
FileHeader:
|
||||
@ -335,7 +335,7 @@ Sections:
|
||||
# RUN: echo -e -n "\x7f\x45\x4c\x46\x02\x01\x01\x03\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00" > %t11
|
||||
# RUN: not llvm-readobj -r %t11 2>&1 | FileCheck --check-prefix=INVALID-BUFFER %s
|
||||
|
||||
# INVALID-BUFFER: Invalid buffer
|
||||
# INVALID-BUFFER: error: {{.*}}': invalid buffer: the size (18) is smaller than an ELF header (64)
|
||||
|
||||
# RUN: not llvm-readobj %p/Inputs/invalid-coff-header-too-small 2>&1 | FileCheck --check-prefix=COFF-HEADER %s
|
||||
# COFF-HEADER: The file was not recognized as a valid object file
|
||||
@ -346,7 +346,7 @@ Sections:
|
||||
# RUN: yaml2obj %s --docnum=17 -o %t17
|
||||
# RUN: not llvm-readobj --sections %t17 2>&1 | FileCheck --check-prefix=BROKEN-SECNAME %s
|
||||
|
||||
## BROKEN-SECNAME: invalid string offset
|
||||
## BROKEN-SECNAME: error: a section [index 1] has an invalid sh_name (0x1) offset which goes past the end of the section name string table
|
||||
|
||||
--- !ELF
|
||||
FileHeader:
|
||||
@ -366,7 +366,7 @@ Sections:
|
||||
# RUN: not llvm-readobj --sections --section-data %t18 2>&1 \
|
||||
# RUN: | FileCheck --check-prefix=BROKEN-SECSHOFFSET %s
|
||||
|
||||
# BROKEN-SECSHOFFSET: invalid section offset
|
||||
# BROKEN-SECSHOFFSET: error: section [index 1] has a sh_offset (0xffff0000) + sh_size (0x0) that cannot be represented
|
||||
|
||||
--- !ELF
|
||||
FileHeader:
|
||||
@ -427,7 +427,7 @@ DynamicSymbols:
|
||||
# RUN: not llvm-readobj -l %p/Inputs/corrupt-invalid-phentsize.elf.x86-64 2>&1 \
|
||||
# RUN: | FileCheck --check-prefix=PHENTSIZE %s
|
||||
|
||||
# PHENTSIZE: invalid e_phentsize
|
||||
# PHENTSIZE: error: invalid e_phentsize: 57
|
||||
|
||||
## The dynamic table contains DT_STRTAB with a value that is not in any loadable segment.
|
||||
## Check llvm-readobj reports it.
|
||||
@ -435,7 +435,7 @@ DynamicSymbols:
|
||||
# RUN: yaml2obj %s --docnum=21 -o %t21
|
||||
# RUN: llvm-readobj --dynamic-table %t21 2>&1 | FileCheck --check-prefix=INVALID-DTSTRTAB %s
|
||||
|
||||
# INVALID-DTSTRTAB: warning: Unable to parse DT_STRTAB: Virtual address is not in any segment
|
||||
# INVALID-DTSTRTAB: warning: Unable to parse DT_STRTAB: virtual address is not in any segment: 0xffff0000
|
||||
|
||||
--- !ELF
|
||||
FileHeader:
|
||||
@ -465,7 +465,7 @@ ProgramHeaders:
|
||||
# RUN: %p/Inputs/corrupt-invalid-relocation-size.elf.x86-64 2>&1 \
|
||||
# RUN: | FileCheck --check-prefix=RELOC-BROKEN-ENTSIZE %s
|
||||
|
||||
# RELOC-BROKEN-ENTSIZE: Invalid entity size
|
||||
# RELOC-BROKEN-ENTSIZE: error: Invalid entity size
|
||||
|
||||
## Check that llvm-readobj reports an error when .dynamic section has an invalid
|
||||
## size, which isn't a multiple of the dynamic entry size.
|
||||
@ -473,7 +473,7 @@ ProgramHeaders:
|
||||
# RUN: yaml2obj %s --docnum=22 -o %t22
|
||||
# RUN: not llvm-readobj --dyn-relocations %t22 2>&1 | FileCheck --check-prefix=DYN-TABLE-SIZE %s
|
||||
|
||||
# DYN-TABLE-SIZE: Invalid entity size
|
||||
# DYN-TABLE-SIZE: error: Invalid entity size
|
||||
|
||||
--- !ELF
|
||||
FileHeader:
|
||||
|
||||
@ -47,4 +47,4 @@ ProgramHeaders:
|
||||
Sections:
|
||||
- Section: .dynamic
|
||||
|
||||
# CHECK: Virtual address is not in any segment when locating .dynstr section contents
|
||||
# CHECK: virtual address is not in any segment: 0x260 when locating .dynstr section contents
|
||||
|
||||
@ -13,11 +13,13 @@
|
||||
|
||||
## Truncate the file to end before the program header table ends.
|
||||
# RUN: %python -c "with open('%/t.o', 'r+b') as input: input.truncate(65)"
|
||||
# RUN: not llvm-objcopy %t.o 2>&1 | FileCheck %s
|
||||
# RUN: not llvm-objcopy %t.o 2>&1 | FileCheck %s --check-prefix=CASE1
|
||||
|
||||
# CASE1: error: program headers are longer than binary of size 65: e_phoff = 0x40, e_phnum = 1, e_phentsize = 56
|
||||
|
||||
## Set the e_phoff field to a value much larger than the object file size.
|
||||
# RUN: %python -c "with open('%/t2.o', 'r+b') as input: import struct; bytes = struct.pack('<Q', 0x40000000); input.seek(32); input.write(bytes)"
|
||||
# RUN: not llvm-objcopy %t2.o 2>&1 | FileCheck %s
|
||||
# RUN: not llvm-objcopy %t2.o 2>&1 | FileCheck %s --check-prefix=CASE2
|
||||
|
||||
--- !ELF
|
||||
FileHeader:
|
||||
@ -28,4 +30,4 @@ FileHeader:
|
||||
ProgramHeaders:
|
||||
- Type: PT_LOAD
|
||||
|
||||
# CHECK: error: program headers longer than binary
|
||||
# CASE2: error: program headers are longer than binary of size 120: e_phoff = 0x40000000, e_phnum = 1, e_phentsize = 56
|
||||
|
||||
@ -11,11 +11,13 @@
|
||||
|
||||
## Truncate the file to end before the section header table ends.
|
||||
# RUN: %python -c "with open('%/t.o', 'r+b') as input: input.truncate(65)"
|
||||
# RUN: not llvm-objcopy %t.o 2>&1 | FileCheck %s -DINPUT=%t.o
|
||||
# RUN: not llvm-objcopy %t.o 2>&1 | FileCheck %s -DINPUT=%t.o --check-prefix=CASE1
|
||||
|
||||
# CASE1: error: '[[INPUT]]': section header table goes past the end of the file: e_shoff = 0x40
|
||||
|
||||
## Set the e_shoff field to a value much larger than the object file size.
|
||||
# RUN: %python -c "with open('%/t2.o', 'r+b') as input: import struct; bytes = struct.pack('<Q', 0x40000000); input.seek(40); input.write(bytes)"
|
||||
# RUN: not llvm-objcopy %t2.o 2>&1 | FileCheck %s -DINPUT=%t2.o
|
||||
# RUN: not llvm-objcopy %t2.o 2>&1 | FileCheck %s -DINPUT=%t2.o --check-prefix=CASE2
|
||||
|
||||
--- !ELF
|
||||
FileHeader:
|
||||
@ -27,4 +29,4 @@ Sections:
|
||||
- Name: .foo
|
||||
Type: SHT_PROGBITS
|
||||
|
||||
# CHECK: error: '[[INPUT]]': section header table goes past the end of the file
|
||||
# CASE2: error: '[[INPUT]]': section header table goes past the end of the file: e_shoff = 0x40000000
|
||||
|
||||
@ -6,7 +6,7 @@
|
||||
# RUN: llvm-readobj -S %t1 2>&1 | FileCheck %s --check-prefixes=LLVM,ERR
|
||||
# RUN: llvm-readelf -S %t1 2>&1 | FileCheck %s --check-prefixes=GNU,ERR
|
||||
|
||||
# ERR: warning: invalid sh_type for string table, expected SHT_STRTAB
|
||||
# ERR: warning: invalid sh_type for string table section [index 0]: expected SHT_STRTAB, but got SHT_NULL
|
||||
|
||||
# LLVM: Name: .dynsym
|
||||
# LLVM-NEXT: Type: SHT_DYNSYM
|
||||
|
||||
@ -141,7 +141,7 @@ ProgramHeaders:
|
||||
|
||||
# RUN: llvm-readobj --dynamic-table %t.bad-strtab 2>&1 >/dev/null | FileCheck %s --check-prefix BAD-STRTAB-ERR
|
||||
# RUN: llvm-readelf --dynamic-table %t.bad-strtab 2>&1 >/dev/null | FileCheck %s --check-prefix BAD-STRTAB-ERR
|
||||
# BAD-STRTAB-ERR: warning: Unable to parse DT_STRTAB: Virtual address is not in any segment
|
||||
# BAD-STRTAB-ERR: warning: Unable to parse DT_STRTAB: virtual address is not in any segment: 0x2000000
|
||||
|
||||
# RUN: llvm-readobj --dynamic-table --needed-libs %t.bad-strtab | FileCheck %s --check-prefixes=BAD-STRTAB,BAD-STRTAB-LLVM
|
||||
# RUN: llvm-readelf --dynamic-table --needed-libs %t.bad-strtab | FileCheck %s --check-prefixes=BAD-STRTAB,BAD-STRTAB-GNU
|
||||
@ -186,7 +186,8 @@ ProgramHeaders:
|
||||
# RUN: llvm-readobj --dynamic-table %t.bad-rela 2>&1 | FileCheck %s --check-prefixes=CHECK,BAD-RELA
|
||||
# RUN: llvm-readelf --dynamic-table %t.bad-rela 2>&1 | FileCheck %s --check-prefixes=CHECK,BAD-RELA-GNU
|
||||
|
||||
# CHECK: warning: Unable to parse DT_RELA: Virtual address is not in any segment
|
||||
# CHECK: warning: Unable to parse DT_RELA: virtual address is not in any segment: 0x1000000
|
||||
|
||||
# BAD-RELA: DynamicSection [ (2 entries)
|
||||
# BAD-RELA-NEXT: Tag Type Name/Value
|
||||
# BAD-RELA-NEXT: 0x0000000000000007 RELA 0x1000000
|
||||
|
||||
Loading…
Reference in New Issue
Block a user