2 * Linker script for gate DSO. The gate pages are an ELF shared object
3 * prelinked to its virtual address, with only one read-only segment and
4 * one execute-only segment (both fit in one page). This script controls
12 . = GATE_ADDR + SIZEOF_HEADERS;
14 .hash : { *(.hash) } :readable
15 .gnu.hash : { *(.gnu.hash) }
16 .dynsym : { *(.dynsym) }
17 .dynstr : { *(.dynstr) }
18 .gnu.version : { *(.gnu.version) }
19 .gnu.version_d : { *(.gnu.version_d) }
20 .gnu.version_r : { *(.gnu.version_r) }
22 .note : { *(.note*) } :readable :note
24 .dynamic : { *(.dynamic) } :readable :dynamic
27 * This linker script is used both with -r and with -shared. For
28 * the layouts to match, we need to skip more than enough space for
29 * the dynamic symbol table et al. If this amount is insufficient,
30 * ld -shared will barf. Just increase it here.
32 . = GATE_ADDR + 0x600;
35 __start_gate_mckinley_e9_patchlist = .;
36 *(.data..patch.mckinley_e9)
37 __end_gate_mckinley_e9_patchlist = .;
39 __start_gate_vtop_patchlist = .;
41 __end_gate_vtop_patchlist = .;
43 __start_gate_fsyscall_patchlist = .;
44 *(.data..patch.fsyscall_table)
45 __end_gate_fsyscall_patchlist = .;
47 __start_gate_brl_fsys_bubble_down_patchlist = .;
48 *(.data..patch.brl_fsys_bubble_down)
49 __end_gate_brl_fsys_bubble_down_patchlist = .;
52 .IA_64.unwind_info : { *(.IA_64.unwind_info*) }
53 .IA_64.unwind : { *(.IA_64.unwind*) } :readable :unwind
54 #ifdef HAVE_BUGGY_SEGREL
55 .text (GATE_ADDR + PAGE_SIZE) : { *(.text) *(.text.*) } :readable
57 . = ALIGN(PERCPU_PAGE_SIZE) + (. & (PERCPU_PAGE_SIZE - 1));
58 .text : { *(.text) *(.text.*) } :epc
63 *(.data .data.* .gnu.linkonce.d.*)
65 *(.bss .bss.* .gnu.linkonce.b.*)
72 * ld does not recognize this name token; use the constant.
74 #define PT_IA_64_UNWIND 0x70000001
77 * We must supply the ELF program headers explicitly to get just one
78 * PT_LOAD segment, and set the flags explicitly to make segments read-only.
82 readable PT_LOAD FILEHDR PHDRS FLAGS(4); /* PF_R */
83 #ifndef HAVE_BUGGY_SEGREL
84 epc PT_LOAD FILEHDR PHDRS FLAGS(1); /* PF_X */
86 dynamic PT_DYNAMIC FLAGS(4); /* PF_R */
87 note PT_NOTE FLAGS(4); /* PF_R */
88 unwind PT_IA_64_UNWIND;
92 * This controls what symbols we export from the DSO.
98 __kernel_syscall_via_break;
99 __kernel_syscall_via_epc;
106 /* The ELF entry point can be used to set the AT_SYSINFO value. */
107 ENTRY(__kernel_syscall_via_epc)