From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 11 Oct 2007 09:12:30 +0000 (+0200)
Subject: i386: prepare shared kernel/vsyscall-int80.S
X-Git-Tag: firefly_0821_release~26294
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=24f5b95bb91a6edac5dfdc7ddcbd6cabe0b30430;p=firefly-linux-kernel-4.4.55.git

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 38d2b469a891..84297d470df2 100644
--- 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
index 530d0525e5e2..000000000000
--- 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
index 000000000000..530d0525e5e2
--- /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 b403890fe39b..033074479fca 100644
--- 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