1727 int file_descriptor= ::open(filename, O_RDONLY | O_NONBLOCK);
1728
1729 if (file_descriptor < 0) {
1730 // Can't open library, report dlerror() message
1731 return NULL;
1732 }
1733
1734 bool failed_to_read_elf_head=
1735 (sizeof(elf_head)!=
1736 (::read(file_descriptor, &elf_head,sizeof(elf_head))));
1737
1738 ::close(file_descriptor);
1739 if (failed_to_read_elf_head) {
1740 // file i/o error - report dlerror() msg
1741 return NULL;
1742 }
1743
1744 typedef struct {
1745 Elf32_Half code; // Actual value as defined in elf.h
1746 Elf32_Half compat_class; // Compatibility of archs at VM's sense
1747 char elf_class; // 32 or 64 bit
1748 char endianess; // MSB or LSB
1749 char* name; // String representation
1750 } arch_t;
1751
1752 #ifndef EM_486
1753 #define EM_486 6 /* Intel 80486 */
1754 #endif
1755 #ifndef EM_AARCH64
1756 #define EM_AARCH64 183 /* ARM AARCH64 */
1757 #endif
1758
1759 static const arch_t arch_array[]={
1760 {EM_386, EM_386, ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"},
1761 {EM_486, EM_386, ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"},
1762 {EM_IA_64, EM_IA_64, ELFCLASS64, ELFDATA2LSB, (char*)"IA 64"},
1763 {EM_X86_64, EM_X86_64, ELFCLASS64, ELFDATA2LSB, (char*)"AMD 64"},
1764 {EM_SPARC, EM_SPARC, ELFCLASS32, ELFDATA2MSB, (char*)"Sparc 32"},
1765 {EM_SPARC32PLUS, EM_SPARC, ELFCLASS32, ELFDATA2MSB, (char*)"Sparc 32"},
1766 {EM_SPARCV9, EM_SPARCV9, ELFCLASS64, ELFDATA2MSB, (char*)"Sparc v9 64"},
1767 {EM_PPC, EM_PPC, ELFCLASS32, ELFDATA2MSB, (char*)"Power PC 32"},
1768 #if defined(VM_LITTLE_ENDIAN)
|
1727 int file_descriptor= ::open(filename, O_RDONLY | O_NONBLOCK);
1728
1729 if (file_descriptor < 0) {
1730 // Can't open library, report dlerror() message
1731 return NULL;
1732 }
1733
1734 bool failed_to_read_elf_head=
1735 (sizeof(elf_head)!=
1736 (::read(file_descriptor, &elf_head,sizeof(elf_head))));
1737
1738 ::close(file_descriptor);
1739 if (failed_to_read_elf_head) {
1740 // file i/o error - report dlerror() msg
1741 return NULL;
1742 }
1743
1744 typedef struct {
1745 Elf32_Half code; // Actual value as defined in elf.h
1746 Elf32_Half compat_class; // Compatibility of archs at VM's sense
1747 unsigned char elf_class; // 32 or 64 bit
1748 unsigned char endianess; // MSB or LSB
1749 char* name; // String representation
1750 } arch_t;
1751
1752 #ifndef EM_486
1753 #define EM_486 6 /* Intel 80486 */
1754 #endif
1755 #ifndef EM_AARCH64
1756 #define EM_AARCH64 183 /* ARM AARCH64 */
1757 #endif
1758
1759 static const arch_t arch_array[]={
1760 {EM_386, EM_386, ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"},
1761 {EM_486, EM_386, ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"},
1762 {EM_IA_64, EM_IA_64, ELFCLASS64, ELFDATA2LSB, (char*)"IA 64"},
1763 {EM_X86_64, EM_X86_64, ELFCLASS64, ELFDATA2LSB, (char*)"AMD 64"},
1764 {EM_SPARC, EM_SPARC, ELFCLASS32, ELFDATA2MSB, (char*)"Sparc 32"},
1765 {EM_SPARC32PLUS, EM_SPARC, ELFCLASS32, ELFDATA2MSB, (char*)"Sparc 32"},
1766 {EM_SPARCV9, EM_SPARCV9, ELFCLASS64, ELFDATA2MSB, (char*)"Sparc v9 64"},
1767 {EM_PPC, EM_PPC, ELFCLASS32, ELFDATA2MSB, (char*)"Power PC 32"},
1768 #if defined(VM_LITTLE_ENDIAN)
|