projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 | 1 | /* |
| 1a43be74 RM |
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 | |
| 5 | * its layout. | |
| 1da177e4 LT |
6 | */ |
| 7 | ||
| c140d879 | 8 | #include <asm/page.h> |
| 1da177e4 LT |
9 | |
| 10 | SECTIONS | |
| 11 | { | |
| 1a43be74 RM |
12 | . = GATE_ADDR + SIZEOF_HEADERS; |
| 13 | ||
| 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) } | |
| 21 | ||
| 172c5106 RM |
22 | .note : { *(.note*) } :readable :note |
| 23 | ||
| 1a43be74 RM |
24 | .dynamic : { *(.dynamic) } :readable :dynamic |
| 25 | ||
| 26 | /* | |
| 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. | |
| 31 | */ | |
| 1f0abae8 | 32 | . = GATE_ADDR + 0x600; |
| 1a43be74 | 33 | |
| dafb9320 | 34 | .data..patch : { |
| e55645ec | 35 | __start_gate_mckinley_e9_patchlist = .; |
| dafb9320 | 36 | *(.data..patch.mckinley_e9) |
| e55645ec | 37 | __end_gate_mckinley_e9_patchlist = .; |
| 1a43be74 | 38 | |
| e55645ec | 39 | __start_gate_vtop_patchlist = .; |
| dafb9320 | 40 | *(.data..patch.vtop) |
| e55645ec | 41 | __end_gate_vtop_patchlist = .; |
| 1a43be74 | 42 | |
| e55645ec | 43 | __start_gate_fsyscall_patchlist = .; |
| dafb9320 | 44 | *(.data..patch.fsyscall_table) |
| e55645ec | 45 | __end_gate_fsyscall_patchlist = .; |
| 1a43be74 | 46 | |
| e55645ec | 47 | __start_gate_brl_fsys_bubble_down_patchlist = .; |
| dafb9320 | 48 | *(.data..patch.brl_fsys_bubble_down) |
| e55645ec | 49 | __end_gate_brl_fsys_bubble_down_patchlist = .; |
| 1a43be74 RM |
50 | } :readable |
| 51 | ||
| 52 | .IA_64.unwind_info : { *(.IA_64.unwind_info*) } | |
| 53 | .IA_64.unwind : { *(.IA_64.unwind*) } :readable :unwind | |
| 1da177e4 | 54 | #ifdef HAVE_BUGGY_SEGREL |
| 1a43be74 | 55 | .text (GATE_ADDR + PAGE_SIZE) : { *(.text) *(.text.*) } :readable |
| 1da177e4 | 56 | #else |
| 1a43be74 RM |
57 | . = ALIGN(PERCPU_PAGE_SIZE) + (. & (PERCPU_PAGE_SIZE - 1)); |
| 58 | .text : { *(.text) *(.text.*) } :epc | |
| 1da177e4 LT |
59 | #endif |
| 60 | ||
| 1a43be74 RM |
61 | /DISCARD/ : { |
| 62 | *(.got.plt) *(.got) | |
| 63 | *(.data .data.* .gnu.linkonce.d.*) | |
| 64 | *(.dynbss) | |
| 65 | *(.bss .bss.* .gnu.linkonce.b.*) | |
| 66 | *(__ex_table) | |
| 67 | *(__mca_table) | |
| 68 | } | |
| 1da177e4 LT |
69 | } |
| 70 | ||
| 1a43be74 RM |
71 | /* |
| 72 | * ld does not recognize this name token; use the constant. | |
| 73 | */ | |
| 74 | #define PT_IA_64_UNWIND 0x70000001 | |
| 75 | ||
| 1da177e4 LT |
76 | /* |
| 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. | |
| 79 | */ | |
| 80 | PHDRS | |
| 81 | { | |
| 1a43be74 | 82 | readable PT_LOAD FILEHDR PHDRS FLAGS(4); /* PF_R */ |
| 1da177e4 | 83 | #ifndef HAVE_BUGGY_SEGREL |
| 1a43be74 | 84 | epc PT_LOAD FILEHDR PHDRS FLAGS(1); /* PF_X */ |
| 1da177e4 | 85 | #endif |
| 1a43be74 | 86 | dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ |
| 172c5106 | 87 | note PT_NOTE FLAGS(4); /* PF_R */ |
| 1a43be74 | 88 | unwind PT_IA_64_UNWIND; |
| 1da177e4 LT |
89 | } |
| 90 | ||
| 91 | /* | |
| 92 | * This controls what symbols we export from the DSO. | |
| 93 | */ | |
| 94 | VERSION | |
| 95 | { | |
| 1a43be74 RM |
96 | LINUX_2.5 { |
| 97 | global: | |
| 98 | __kernel_syscall_via_break; | |
| 99 | __kernel_syscall_via_epc; | |
| 100 | __kernel_sigtramp; | |
| 101 | ||
| 102 | local: *; | |
| 103 | }; | |
| 1da177e4 LT |
104 | } |
| 105 | ||
| 106 | /* The ELF entry point can be used to set the AT_SYSINFO value. */ | |
| 107 | ENTRY(__kernel_syscall_via_epc) |