diff options
Diffstat (limited to 'fesvr/elfloader.cc')
| -rw-r--r-- | fesvr/elfloader.cc | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fesvr/elfloader.cc b/fesvr/elfloader.cc index 76cd6da..1bdccd3 100644 --- a/fesvr/elfloader.cc +++ b/fesvr/elfloader.cc @@ -16,7 +16,7 @@ #include <vector> #include <map> -std::map<std::string, uint64_t> load_elf(const char* fn, memif_t* memif, reg_t* entry) +std::map<std::string, uint64_t> load_elf(const char* fn, memif_t* memif, reg_t* entry, unsigned required_xlen = 0) { int fd = open(fn, O_RDONLY); struct stat s; @@ -32,6 +32,10 @@ std::map<std::string, uint64_t> load_elf(const char* fn, memif_t* memif, reg_t* assert(size >= sizeof(Elf64_Ehdr)); const Elf64_Ehdr* eh64 = (const Elf64_Ehdr*)buf; assert(IS_ELF32(*eh64) || IS_ELF64(*eh64)); + unsigned xlen = IS_ELF32(*eh64) ? 32 : 64; + if (required_xlen != 0 && required_xlen != xlen) { + throw incompat_xlen(required_xlen, xlen); + } assert(IS_ELFLE(*eh64) || IS_ELFBE(*eh64)); assert(IS_ELF_EXEC(*eh64)); assert(IS_ELF_RISCV(*eh64) || IS_ELF_EM_NONE(*eh64)); |