projects / mirror_ubuntu-hirsute-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * Linker script for gate DSO. The gate pages are an ELF shared object prelinked to its | |
| 3 | * virtual address, with only one read-only segment and one execute-only segment (both fit | |
| 4 | * in one page). This script controls its layout. | |
| 5 | */ | |
| 6 | ||
| 1da177e4 LT |
7 | |
| 8 | #include <asm/system.h> | |
| 9 | ||
| 10 | SECTIONS | |
| 11 | { | |
| 12 | . = GATE_ADDR + SIZEOF_HEADERS; | |
| 13 | ||
| 14 | .hash : { *(.hash) } :readable | |
| 0b0bf7a3 | 15 | .gnu.hash : { *(.gnu.hash) } |
| 1da177e4 LT |
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 | .dynamic : { *(.dynamic) } :readable :dynamic | |
| 22 | ||
| 23 | /* | |
| 24 | * This linker script is used both with -r and with -shared. For the layouts to match, | |
| 25 | * we need to skip more than enough space for the dynamic symbol table et al. If this | |
| 26 | * amount is insufficient, ld -shared will barf. Just increase it here. | |
| 27 | */ | |
| 28 | . = GATE_ADDR + 0x500; | |
| 29 | ||
| 30 | .data.patch : { | |
| 31 | __start_gate_mckinley_e9_patchlist = .; | |
| 32 | *(.data.patch.mckinley_e9) | |
| 33 | __end_gate_mckinley_e9_patchlist = .; | |
| 34 | ||
| 35 | __start_gate_vtop_patchlist = .; | |
| 36 | *(.data.patch.vtop) | |
| 37 | __end_gate_vtop_patchlist = .; | |
| 38 | ||
| 39 | __start_gate_fsyscall_patchlist = .; | |
| 40 | *(.data.patch.fsyscall_table) | |
| 41 | __end_gate_fsyscall_patchlist = .; | |
| 42 | ||
| 43 | __start_gate_brl_fsys_bubble_down_patchlist = .; | |
| 44 | *(.data.patch.brl_fsys_bubble_down) | |
| 45 | __end_gate_brl_fsys_bubble_down_patchlist = .; | |
| 46 | } :readable | |
| 47 | .IA_64.unwind_info : { *(.IA_64.unwind_info*) } | |
| 48 | .IA_64.unwind : { *(.IA_64.unwind*) } :readable :unwind | |
| 49 | #ifdef HAVE_BUGGY_SEGREL | |
| 50 | .text (GATE_ADDR + PAGE_SIZE) : { *(.text) *(.text.*) } :readable | |
| 51 | #else | |
| 52 | . = ALIGN (PERCPU_PAGE_SIZE) + (. & (PERCPU_PAGE_SIZE - 1)); | |
| 53 | .text : { *(.text) *(.text.*) } :epc | |
| 54 | #endif | |
| 55 | ||
| 56 | /DISCARD/ : { | |
| 57 | *(.got.plt) *(.got) | |
| 58 | *(.data .data.* .gnu.linkonce.d.*) | |
| 59 | *(.dynbss) | |
| 60 | *(.bss .bss.* .gnu.linkonce.b.*) | |
| 61 | *(__ex_table) | |
| 3283a67d | 62 | *(__mca_table) |
| 1da177e4 LT |
63 | } |
| 64 | } | |
| 65 | ||
| 66 | /* | |
| 67 | * We must supply the ELF program headers explicitly to get just one | |
| 68 | * PT_LOAD segment, and set the flags explicitly to make segments read-only. | |
| 69 | */ | |
| 70 | PHDRS | |
| 71 | { | |
| 72 | readable PT_LOAD FILEHDR PHDRS FLAGS(4); /* PF_R */ | |
| 73 | #ifndef HAVE_BUGGY_SEGREL | |
| 74 | epc PT_LOAD FILEHDR PHDRS FLAGS(1); /* PF_X */ | |
| 75 | #endif | |
| 76 | dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ | |
| 77 | unwind 0x70000001; /* PT_IA_64_UNWIND, but ld doesn't match the name */ | |
| 78 | } | |
| 79 | ||
| 80 | /* | |
| 81 | * This controls what symbols we export from the DSO. | |
| 82 | */ | |
| 83 | VERSION | |
| 84 | { | |
| 85 | LINUX_2.5 { | |
| 86 | global: | |
| 87 | __kernel_syscall_via_break; | |
| 88 | __kernel_syscall_via_epc; | |
| 89 | __kernel_sigtramp; | |
| 90 | ||
| 91 | local: *; | |
| 92 | }; | |
| 93 | } | |
| 94 | ||
| 95 | /* The ELF entry point can be used to set the AT_SYSINFO value. */ | |
| 96 | ENTRY(__kernel_syscall_via_epc) |