172c510684
When gcc uses --build-id by default, the gate.lds.S linker script runs afoul of the new note section and produces a bad DSO image. This fixes it. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
109 lines
2.6 KiB
ArmAsm
109 lines
2.6 KiB
ArmAsm
/*
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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/system.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 + 0x500;
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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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