x86_64: Add vDSO for x86-64 with gettimeofday/clock_gettime/getcpu

[pandora-kernel.git] / arch / x86_64 / kernel / vmlinux.lds.S

diff --git a/arch/x86_64/kernel/vmlinux.lds.S b/arch/x86_64/kernel/vmlinux.lds.S
index b73212c..c2d5a84 100644 (file)
--- a/arch/x86_64/kernel/vmlinux.lds.S
+++ b/arch/x86_64/kernel/vmlinux.lds.S
@@ -13,7 +13,7 @@ OUTPUT_FORMAT("elf64-x86-64", "elf64-x86-64", "elf64-x86-64")
 OUTPUT_ARCH(i386:x86-64)
 ENTRY(phys_startup_64)
 jiffies_64 = jiffies;
-_proxy_pda = 0;
+_proxy_pda = 1;
 PHDRS {
        text PT_LOAD FLAGS(5);  /* R_E */
        data PT_LOAD FLAGS(7);  /* RWE */
@@ -29,11 +29,9 @@ SECTIONS
   .text :  AT(ADDR(.text) - LOAD_OFFSET) {
        /* First the code that has to be first for bootstrapping */
        *(.bootstrap.text)
-       /* Then all the functions that are "hot" in profiles, to group them
-           onto the same hugetlb entry */
-       #include "functionlist"
+       _stext = .;
        /* Then the rest */
-       *(.text)
+       TEXT_TEXT
        SCHED_TEXT
        LOCK_TEXT
        KPROBES_TEXT
@@ -50,14 +48,16 @@ SECTIONS
   __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { *(__ex_table) }
   __stop___ex_table = .;
 
-  RODATA
+  NOTES :text :note
+
+  BUG_TABLE :text
 
-  BUG_TABLE
+  RODATA
 
   . = ALIGN(PAGE_SIZE);        /* Align data segment to page size boundary */
                                /* Data */
   .data : AT(ADDR(.data) - LOAD_OFFSET) {
-       *(.data)
+       DATA_DATA
        CONSTRUCTORS
        } :data
 
@@ -93,6 +93,15 @@ SECTIONS
   .vsyscall_gtod_data : AT(VLOAD(.vsyscall_gtod_data))
                { *(.vsyscall_gtod_data) }
   vsyscall_gtod_data = VVIRT(.vsyscall_gtod_data);
+  .vsyscall_clock : AT(VLOAD(.vsyscall_clock))
+               { *(.vsyscall_clock) }
+  vsyscall_clock = VVIRT(.vsyscall_clock);
+
+
+  .vsyscall_1 ADDR(.vsyscall_0) + 1024: AT(VLOAD(.vsyscall_1))
+               { *(.vsyscall_1) }
+  .vsyscall_2 ADDR(.vsyscall_0) + 2048: AT(VLOAD(.vsyscall_2))
+               { *(.vsyscall_2) }
 
   .vgetcpu_mode : AT(VLOAD(.vgetcpu_mode)) { *(.vgetcpu_mode) }
   vgetcpu_mode = VVIRT(.vgetcpu_mode);
@@ -101,10 +110,6 @@ SECTIONS
   .jiffies : AT(VLOAD(.jiffies)) { *(.jiffies) }
   jiffies = VVIRT(.jiffies);
 
-  .vsyscall_1 ADDR(.vsyscall_0) + 1024: AT(VLOAD(.vsyscall_1))
-               { *(.vsyscall_1) }
-  .vsyscall_2 ADDR(.vsyscall_0) + 2048: AT(VLOAD(.vsyscall_2))
-               { *(.vsyscall_2) }
   .vsyscall_3 ADDR(.vsyscall_0) + 3072: AT(VLOAD(.vsyscall_3))
                { *(.vsyscall_3) }
 
@@ -187,6 +192,12 @@ SECTIONS
   .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { *(.exit.text) }
   .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { *(.exit.data) }
 
+/* vdso blob that is mapped into user space */
+  vdso_start = . ;
+  .vdso  : AT(ADDR(.vdso) - LOAD_OFFSET) { *(.vdso) }
+  . = ALIGN(4096);
+  vdso_end = .;
+
 #ifdef CONFIG_BLK_DEV_INITRD
   . = ALIGN(4096);
   __initramfs_start = .;
@@ -194,10 +205,8 @@ SECTIONS
   __initramfs_end = .;
 #endif
 
-    . = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
-  __per_cpu_start = .;
-  .data.percpu  : AT(ADDR(.data.percpu) - LOAD_OFFSET) { *(.data.percpu) }
-  __per_cpu_end = .;
+  PERCPU(4096)
+
   . = ALIGN(4096);
   __init_end = .;