| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Linker script for gate DSO. The gate pages are an ELF shared object |
| * prelinked to its virtual address, with only one read-only segment and |
| * one execute-only segment (both fit in one page). This script controls |
| * its layout. |
| */ |
| |
| #include <asm/page.h> |
| |
| SECTIONS |
| { |
| . = GATE_ADDR + SIZEOF_HEADERS; |
| |
| .hash : { *(.hash) } :readable |
| .gnu.hash : { *(.gnu.hash) } |
| .dynsym : { *(.dynsym) } |
| .dynstr : { *(.dynstr) } |
| .gnu.version : { *(.gnu.version) } |
| .gnu.version_d : { *(.gnu.version_d) } |
| .gnu.version_r : { *(.gnu.version_r) } |
| |
| .note : { *(.note*) } :readable :note |
| |
| .dynamic : { *(.dynamic) } :readable :dynamic |
| |
| /* |
| * This linker script is used both with -r and with -shared. For |
| * the layouts to match, we need to skip more than enough space for |
| * the dynamic symbol table et al. If this amount is insufficient, |
| * ld -shared will barf. Just increase it here. |
| */ |
| . = GATE_ADDR + 0x600; |
| |
| .data..patch : { |
| __start_gate_mckinley_e9_patchlist = .; |
| *(.data..patch.mckinley_e9) |
| __end_gate_mckinley_e9_patchlist = .; |
| |
| __start_gate_vtop_patchlist = .; |
| *(.data..patch.vtop) |
| __end_gate_vtop_patchlist = .; |
| |
| __start_gate_fsyscall_patchlist = .; |
| *(.data..patch.fsyscall_table) |
| __end_gate_fsyscall_patchlist = .; |
| |
| __start_gate_brl_fsys_bubble_down_patchlist = .; |
| *(.data..patch.brl_fsys_bubble_down) |
| __end_gate_brl_fsys_bubble_down_patchlist = .; |
| } :readable |
| |
| .IA_64.unwind_info : { *(.IA_64.unwind_info*) } |
| .IA_64.unwind : { *(.IA_64.unwind*) } :readable :unwind |
| #ifdef HAVE_BUGGY_SEGREL |
| .text (GATE_ADDR + PAGE_SIZE) : { *(.text) *(.text.*) } :readable |
| #else |
| . = ALIGN(PERCPU_PAGE_SIZE) + (. & (PERCPU_PAGE_SIZE - 1)); |
| .text : { *(.text) *(.text.*) } :epc |
| #endif |
| |
| /DISCARD/ : { |
| *(.got.plt) *(.got) |
| *(.data .data.* .gnu.linkonce.d.*) |
| *(.dynbss) |
| *(.bss .bss.* .gnu.linkonce.b.*) |
| *(__ex_table) |
| *(__mca_table) |
| } |
| } |
| |
| /* |
| * ld does not recognize this name token; use the constant. |
| */ |
| #define PT_IA_64_UNWIND 0x70000001 |
| |
| /* |
| * We must supply the ELF program headers explicitly to get just one |
| * PT_LOAD segment, and set the flags explicitly to make segments read-only. |
| */ |
| PHDRS |
| { |
| readable PT_LOAD FILEHDR PHDRS FLAGS(4); /* PF_R */ |
| #ifndef HAVE_BUGGY_SEGREL |
| epc PT_LOAD FILEHDR PHDRS FLAGS(1); /* PF_X */ |
| #endif |
| dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ |
| note PT_NOTE FLAGS(4); /* PF_R */ |
| unwind PT_IA_64_UNWIND; |
| } |
| |
| /* |
| * This controls what symbols we export from the DSO. |
| */ |
| VERSION |
| { |
| LINUX_2.5 { |
| global: |
| __kernel_syscall_via_break; |
| __kernel_syscall_via_epc; |
| __kernel_sigtramp; |
| |
| local: *; |
| }; |
| } |
| |
| /* The ELF entry point can be used to set the AT_SYSINFO value. */ |
| ENTRY(__kernel_syscall_via_epc) |
