| /* |
| * Linker script for vsyscall DSO. The vsyscall page is an ELF shared |
| * object prelinked to its virtual address, and with only one read-only |
| * segment (that fits in one page). This script controls its layout. |
| */ |
| #include <asm/asm-offsets.h> |
| |
| SECTIONS |
| { |
| . = VDSO_PRELINK_asm + 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) } |
| |
| /* 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. */ |
| . = VDSO_PRELINK_asm + 0x400; |
| |
| .text : { *(.text) } :text =0x90909090 |
| .note : { *(.note.*) } :text :note |
| .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr |
| .eh_frame : { KEEP (*(.eh_frame)) } :text |
| .dynamic : { *(.dynamic) } :text :dynamic |
| .useless : { |
| *(.got.plt) *(.got) |
| *(.data .data.* .gnu.linkonce.d.*) |
| *(.dynbss) |
| *(.bss .bss.* .gnu.linkonce.b.*) |
| } :text |
| } |
| |
| /* |
| * 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 FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */ |
| dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ |
| note PT_NOTE FLAGS(4); /* PF_R */ |
| eh_frame_hdr 0x6474e550; /* PT_GNU_EH_FRAME, but ld doesn't match the name */ |
| } |
| |
| /* |
| * This controls what symbols we export from the DSO. |
| */ |
| VERSION |
| { |
| LINUX_2.5 { |
| global: |
| __kernel_vsyscall; |
| __kernel_sigreturn; |
| __kernel_rt_sigreturn; |
| |
| local: *; |
| }; |
| } |
| |
| /* The ELF entry point can be used to set the AT_SYSINFO value. */ |
| ENTRY(__kernel_vsyscall); |
