diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/ia64/kernel/gate.lds.S |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/ia64/kernel/gate.lds.S')
-rw-r--r-- | arch/ia64/kernel/gate.lds.S | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/arch/ia64/kernel/gate.lds.S b/arch/ia64/kernel/gate.lds.S new file mode 100644 index 00000000000..e1e4aba9ecd --- /dev/null +++ b/arch/ia64/kernel/gate.lds.S @@ -0,0 +1,95 @@ +/* + * 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 <linux/config.h> + +#include <asm/system.h> + +SECTIONS +{ + . = GATE_ADDR + SIZEOF_HEADERS; + + .hash : { *(.hash) } :readable + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .gnu.version : { *(.gnu.version) } + .gnu.version_d : { *(.gnu.version_d) } + .gnu.version_r : { *(.gnu.version_r) } + .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 + 0x500; + + .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) + } +} + +/* + * 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 */ + unwind 0x70000001; /* PT_IA_64_UNWIND, but ld doesn't match the name */ +} + +/* + * 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) |