| #include <asm/vdso.h> |
| |
| /* |
| * Linker script for vDSO. This is an ELF shared object prelinked to |
| * its virtual address, and with only one read-only segment. |
| * This script controls its layout. |
| */ |
| |
| SECTIONS |
| { |
| . = SIZEOF_HEADERS; |
| |
| .hash : { *(.hash) } :text |
| .gnu.hash : { *(.gnu.hash) } |
| .dynsym : { *(.dynsym) } |
| .dynstr : { *(.dynstr) } |
| .gnu.version : { *(.gnu.version) } |
| .gnu.version_d : { *(.gnu.version_d) } |
| .gnu.version_r : { *(.gnu.version_r) } |
| |
| .note : { *(.note.*) } :text :note |
| |
| .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr |
| .eh_frame : { KEEP (*(.eh_frame)) } :text |
| |
| .dynamic : { *(.dynamic) } :text :dynamic |
| |
| .rodata : { *(.rodata*) } :text |
| .data : { |
| *(.data*) |
| *(.sdata*) |
| *(.got.plt) *(.got) |
| *(.gnu.linkonce.d.*) |
| *(.bss*) |
| *(.dynbss*) |
| *(.gnu.linkonce.b.*) |
| } |
| |
| .altinstructions : { *(.altinstructions) } |
| .altinstr_replacement : { *(.altinstr_replacement) } |
| |
| /* |
| * Align the actual code well away from the non-instruction data. |
| * This is the best thing for the I-cache. |
| */ |
| . = ALIGN(0x100); |
| |
| .text : { *(.text*) } :text =0x90909090, |
| |
| /* |
| * The remainder of the vDSO consists of special pages that are |
| * shared between the kernel and userspace. It needs to be at the |
| * end so that it doesn't overlap the mapping of the actual |
| * vDSO image. |
| */ |
| |
| . = ALIGN(PAGE_SIZE); |
| vvar_page = .; |
| |
| /* Place all vvars at the offsets in asm/vvar.h. */ |
| #define EMIT_VVAR(name, offset) vvar_ ## name = vvar_page + offset; |
| #define __VVAR_KERNEL_LDS |
| #include <asm/vvar.h> |
| #undef __VVAR_KERNEL_LDS |
| #undef EMIT_VVAR |
| |
| . = vvar_page + PAGE_SIZE; |
| |
| hpet_page = .; |
| . = . + PAGE_SIZE; |
| |
| . = ALIGN(PAGE_SIZE); |
| end_mapping = .; |
| |
| /DISCARD/ : { |
| *(.discard) |
| *(.discard.*) |
| } |
| } |
| |
| /* |
| * Very old versions of ld do not recognize this name token; use the constant. |
| */ |
| #define PT_GNU_EH_FRAME 0x6474e550 |
| |
| /* |
| * 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 |
| { |
| text PT_LOAD FLAGS(5) FILEHDR PHDRS; /* PF_R|PF_X */ |
| dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ |
| note PT_NOTE FLAGS(4); /* PF_R */ |
| eh_frame_hdr PT_GNU_EH_FRAME; |
| } |
