diff options
Diffstat (limited to 'src/base/loader')
-rw-r--r-- | src/base/loader/elf_object.cc | 38 | ||||
-rw-r--r-- | src/base/loader/elf_object.hh | 2 | ||||
-rw-r--r-- | src/base/loader/object_file.cc | 6 | ||||
-rw-r--r-- | src/base/loader/object_file.hh | 2 |
4 files changed, 48 insertions, 0 deletions
diff --git a/src/base/loader/elf_object.cc b/src/base/loader/elf_object.cc index 7339507f6..89a5d4512 100644 --- a/src/base/loader/elf_object.cc +++ b/src/base/loader/elf_object.cc @@ -340,3 +340,41 @@ ElfObject::loadLocalSymbols(SymbolTable *symtab, Addr addrMask) { return loadSomeSymbols(symtab, STB_LOCAL); } + +bool +ElfObject::isDynamic() +{ + Elf *elf; + int sec_idx = 1; // there is a 0 but it is nothing, go figure + Elf_Scn *section; + GElf_Shdr shdr; + + GElf_Ehdr ehdr; + + // check that header matches library version + if (elf_version(EV_CURRENT) == EV_NONE) + panic("wrong elf version number!"); + + // get a pointer to elf structure + elf = elf_memory((char*)fileData,len); + assert(elf != NULL); + + // Check that we actually have a elf file + if (gelf_getehdr(elf, &ehdr) ==0) { + panic("Not ELF, shouldn't be here"); + } + + // Get the first section + section = elf_getscn(elf, sec_idx); + + // While there are no more sections + while (section != NULL) { + gelf_getshdr(section, &shdr); + if (!strcmp(".dynamic", elf_strptr(elf, ehdr.e_shstrndx, shdr.sh_name))) + return true; + section = elf_getscn(elf, ++sec_idx); + } // while sections + return false; +} + + diff --git a/src/base/loader/elf_object.hh b/src/base/loader/elf_object.hh index fb728b3c5..d909140f3 100644 --- a/src/base/loader/elf_object.hh +++ b/src/base/loader/elf_object.hh @@ -58,6 +58,8 @@ class ElfObject : public ObjectFile virtual bool loadLocalSymbols(SymbolTable *symtab, Addr addrMask = std::numeric_limits<Addr>::max()); + virtual bool isDynamic(); + static ObjectFile *tryFile(const std::string &fname, int fd, size_t len, uint8_t *data); Addr programHeaderTable() {return _programHeaderTable;} diff --git a/src/base/loader/object_file.cc b/src/base/loader/object_file.cc index ad2cd34ba..da5aa9552 100644 --- a/src/base/loader/object_file.cc +++ b/src/base/loader/object_file.cc @@ -150,3 +150,9 @@ createObjectFile(const string &fname, bool raw) munmap(fileData, len); return NULL; } + +bool +ObjectFile::isDynamic() +{ + return false; +} diff --git a/src/base/loader/object_file.hh b/src/base/loader/object_file.hh index 6e98332c5..18e6482be 100644 --- a/src/base/loader/object_file.hh +++ b/src/base/loader/object_file.hh @@ -83,6 +83,8 @@ class ObjectFile virtual bool loadLocalSymbols(SymbolTable *symtab, Addr addrMask = std::numeric_limits<Addr>::max()) = 0; + virtual bool isDynamic(); + Arch getArch() const { return arch; } OpSys getOpSys() const { return opSys; } |