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