https://sourceware.org/bugzilla/show_bug.cgi?id=22393
Bug ID: 22393 Summary: Add read-only segment Product: binutils Version: 2.30 (HEAD) Status: NEW Severity: normal Priority: P2 Component: admin Assignee: unassigned at sourceware dot org Reporter: hjl.tools at gmail dot com Target Milestone: --- We currently put read-only sections in read-execute segment: [hjl@gnu-ivb-1 gcc]$ readelf -lW /bin/ls Elf file type is DYN (Shared object file) Entry point 0x51c0 There are 9 program headers, starting at offset 64 Program Headers: Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align PHDR 0x000040 0x0000000000000040 0x0000000000000040 0x0001f8 0x0001f8 R E 0x8 INTERP 0x000238 0x0000000000000238 0x0000000000000238 0x00001c 0x00001c R 0x1 [Requesting program interpreter: /lib64/ld-linux-x86-64.so.2] LOAD 0x000000 0x0000000000000000 0x0000000000000000 0x01d84c 0x01d84c R E 0x200000 LOAD 0x01dfd0 0x000000000021dfd0 0x000000000021dfd0 0x001278 0x002418 RW 0x200000 DYNAMIC 0x01ea18 0x000000000021ea18 0x000000000021ea18 0x0001e0 0x0001e0 RW 0x8 NOTE 0x000254 0x0000000000000254 0x0000000000000254 0x000044 0x000044 R 0x4 GNU_EH_FRAME 0x01a1f4 0x000000000001a1f4 0x000000000001a1f4 0x000824 0x000824 R 0x4 GNU_STACK 0x000000 0x0000000000000000 0x0000000000000000 0x000000 0x000000 RW 0x10 GNU_RELRO 0x01dfd0 0x000000000021dfd0 0x000000000021dfd0 0x001030 0x001030 R 0x1 Section to Segment mapping: Segment Sections... 00 01 .interp 02 .interp .note.ABI-tag .note.gnu.build-id .gnu.hash .dynsym .dynstr .gnu.version .gnu.version_r .rela.dyn .init .plt .plt.got .text .fini .rodata .eh_frame_hdr .eh_frame 03 .init_array .fini_array .data.rel.ro .dynamic .got .data .bss 04 .dynamic 05 .note.ABI-tag .note.gnu.build-id 06 .eh_frame_hdr 07 08 .init_array .fini_array .data.rel.ro .dynamic .got [hjl@gnu-ivb-1 gcc]$ I'd like to add a read-only segment for read-only sections to prevent executing data in read-only sections as instructions. -- You are receiving this mail because: You are on the CC list for the bug. _______________________________________________ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils