i386: prepare shared kernel/vsyscall-int80.S

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile
index 38d2b469a891609c4eddc8575d9c2e750d5e1b67..84297d470df2440e1ffd78d6720f21994128cf50 100644 (file)
--- a/arch/i386/kernel/Makefile
+++ b/arch/i386/kernel/Makefile
@@ -50,7 +50,7 @@ obj-$(CONFIG_SCx200)          += scx200.o
 # vsyscall_32.o contains the vsyscall DSO images as __initdata.
 # We must build both images before we can assemble it.
 # Note: kbuild does not track this dependency due to usage of .incbin
-$(obj)/vsyscall_32.o: $(obj)/vsyscall-int80.so $(obj)/vsyscall-sysenter.so
+$(obj)/vsyscall_32.o: $(obj)/vsyscall-int80_32.so $(obj)/vsyscall-sysenter.so
 targets += $(foreach F,int80 sysenter,vsyscall-$F.o vsyscall-$F.so)
 targets += vsyscall-note.o vsyscall_32.lds
 
@@ -64,9 +64,9 @@ export CPPFLAGS_vsyscall_32.lds += -P -C -U$(ARCH)
 vsyscall-flags = -shared -s -Wl,-soname=linux-gate.so.1 \
                 $(call ld-option, -Wl$(comma)--hash-style=sysv)
 SYSCFLAGS_vsyscall-sysenter.so = $(vsyscall-flags)
-SYSCFLAGS_vsyscall-int80.so    = $(vsyscall-flags)
+SYSCFLAGS_vsyscall-int80_32.so = $(vsyscall-flags)
 
-$(obj)/vsyscall-int80.so $(obj)/vsyscall-sysenter.so: \
+$(obj)/vsyscall-int80_32.so $(obj)/vsyscall-sysenter.so: \
 $(obj)/vsyscall-%.so: $(src)/vsyscall_32.lds \
                      $(obj)/vsyscall-%.o $(obj)/vsyscall-note.o FORCE
        $(call if_changed,syscall)

diff --git a/arch/i386/kernel/vsyscall-int80.S b/arch/i386/kernel/vsyscall-int80.S
deleted file mode 100644 (file)
index 530d052..0000000
--- a/arch/i386/kernel/vsyscall-int80.S
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Code for the vsyscall page.  This version uses the old int $0x80 method.
- *
- * NOTE:
- * 1) __kernel_vsyscall _must_ be first in this page.
- * 2) there are alignment constraints on this stub, see vsyscall-sigreturn.S
- *    for details.
- */
-
-       .text
-       .globl __kernel_vsyscall
-       .type __kernel_vsyscall,@function
-__kernel_vsyscall:
-.LSTART_vsyscall:
-       int $0x80
-       ret
-.LEND_vsyscall:
-       .size __kernel_vsyscall,.-.LSTART_vsyscall
-       .previous
-
-       .section .eh_frame,"a",@progbits
-.LSTARTFRAMEDLSI:
-       .long .LENDCIEDLSI-.LSTARTCIEDLSI
-.LSTARTCIEDLSI:
-       .long 0                 /* CIE ID */
-       .byte 1                 /* Version number */
-       .string "zR"            /* NUL-terminated augmentation string */
-       .uleb128 1              /* Code alignment factor */
-       .sleb128 -4             /* Data alignment factor */
-       .byte 8                 /* Return address register column */
-       .uleb128 1              /* Augmentation value length */
-       .byte 0x1b              /* DW_EH_PE_pcrel|DW_EH_PE_sdata4. */
-       .byte 0x0c              /* DW_CFA_def_cfa */
-       .uleb128 4
-       .uleb128 4
-       .byte 0x88              /* DW_CFA_offset, column 0x8 */
-       .uleb128 1
-       .align 4
-.LENDCIEDLSI:
-       .long .LENDFDEDLSI-.LSTARTFDEDLSI /* Length FDE */
-.LSTARTFDEDLSI:
-       .long .LSTARTFDEDLSI-.LSTARTFRAMEDLSI /* CIE pointer */
-       .long .LSTART_vsyscall-.        /* PC-relative start address */
-       .long .LEND_vsyscall-.LSTART_vsyscall
-       .uleb128 0
-       .align 4
-.LENDFDEDLSI:
-       .previous
-
-/*
- * Get the common code for the sigreturn entry points.
- */
-#include "vsyscall-sigreturn.S"

diff --git a/arch/i386/kernel/vsyscall-int80_32.S b/arch/i386/kernel/vsyscall-int80_32.S
new file mode 100644 (file)
index 0000000..530d052
--- /dev/null
+++ b/arch/i386/kernel/vsyscall-int80_32.S
@@ -0,0 +1,53 @@
+/*
+ * Code for the vsyscall page.  This version uses the old int $0x80 method.
+ *
+ * NOTE:
+ * 1) __kernel_vsyscall _must_ be first in this page.
+ * 2) there are alignment constraints on this stub, see vsyscall-sigreturn.S
+ *    for details.
+ */
+
+       .text
+       .globl __kernel_vsyscall
+       .type __kernel_vsyscall,@function
+__kernel_vsyscall:
+.LSTART_vsyscall:
+       int $0x80
+       ret
+.LEND_vsyscall:
+       .size __kernel_vsyscall,.-.LSTART_vsyscall
+       .previous
+
+       .section .eh_frame,"a",@progbits
+.LSTARTFRAMEDLSI:
+       .long .LENDCIEDLSI-.LSTARTCIEDLSI
+.LSTARTCIEDLSI:
+       .long 0                 /* CIE ID */
+       .byte 1                 /* Version number */
+       .string "zR"            /* NUL-terminated augmentation string */
+       .uleb128 1              /* Code alignment factor */
+       .sleb128 -4             /* Data alignment factor */
+       .byte 8                 /* Return address register column */
+       .uleb128 1              /* Augmentation value length */
+       .byte 0x1b              /* DW_EH_PE_pcrel|DW_EH_PE_sdata4. */
+       .byte 0x0c              /* DW_CFA_def_cfa */
+       .uleb128 4
+       .uleb128 4
+       .byte 0x88              /* DW_CFA_offset, column 0x8 */
+       .uleb128 1
+       .align 4
+.LENDCIEDLSI:
+       .long .LENDFDEDLSI-.LSTARTFDEDLSI /* Length FDE */
+.LSTARTFDEDLSI:
+       .long .LSTARTFDEDLSI-.LSTARTFRAMEDLSI /* CIE pointer */
+       .long .LSTART_vsyscall-.        /* PC-relative start address */
+       .long .LEND_vsyscall-.LSTART_vsyscall
+       .uleb128 0
+       .align 4
+.LENDFDEDLSI:
+       .previous
+
+/*
+ * Get the common code for the sigreturn entry points.
+ */
+#include "vsyscall-sigreturn.S"

diff --git a/arch/i386/kernel/vsyscall_32.S b/arch/i386/kernel/vsyscall_32.S
index b403890fe39b35a54ea8f1312790d6fc6434cc6f..033074479fca666325f42335ba0c904d35145a94 100644 (file)
--- a/arch/i386/kernel/vsyscall_32.S
+++ b/arch/i386/kernel/vsyscall_32.S
@@ -4,12 +4,12 @@ __INITDATA
 
        .globl vsyscall_int80_start, vsyscall_int80_end
 vsyscall_int80_start:
-       .incbin "arch/i386/kernel/vsyscall-int80.so"
+       .incbin "arch/i386/kernel/vsyscall-int80_32.so"
 vsyscall_int80_end:
 
        .globl vsyscall_sysenter_start, vsyscall_sysenter_end
 vsyscall_sysenter_start:
-       .incbin "arch/i386/kernel/vsyscall-sysenter.so"
+       .incbin "arch/i386/kernel/vsyscall-sysenter_32.so"
 vsyscall_sysenter_end:
 
 __FINIT