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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/x86/include/asm/vdso.h
Initial import
Diffstat (limited to 'arch/x86/include/asm/vdso.h')
-rw-r--r--arch/x86/include/asm/vdso.h54
1 files changed, 54 insertions, 0 deletions
diff --git a/arch/x86/include/asm/vdso.h b/arch/x86/include/asm/vdso.h
new file mode 100644
index 000000000..8021bd28c
--- /dev/null
+++ b/arch/x86/include/asm/vdso.h
@@ -0,0 +1,54 @@
+#ifndef _ASM_X86_VDSO_H
+#define _ASM_X86_VDSO_H
+
+#include <asm/page_types.h>
+#include <linux/linkage.h>
+#include <linux/init.h>
+
+#ifndef __ASSEMBLER__
+
+#include <linux/mm_types.h>
+
+struct vdso_image {
+ void *data;
+ unsigned long size; /* Always a multiple of PAGE_SIZE */
+
+ /* text_mapping.pages is big enough for data/size page pointers */
+ struct vm_special_mapping text_mapping;
+
+ unsigned long alt, alt_len;
+
+ long sym_vvar_start; /* Negative offset to the vvar area */
+
+ long sym_vvar_page;
+ long sym_hpet_page;
+ long sym_VDSO32_NOTE_MASK;
+ long sym___kernel_sigreturn;
+ long sym___kernel_rt_sigreturn;
+ long sym___kernel_vsyscall;
+ long sym_VDSO32_SYSENTER_RETURN;
+};
+
+#ifdef CONFIG_X86_64
+extern const struct vdso_image vdso_image_64;
+#endif
+
+#ifdef CONFIG_X86_X32
+extern const struct vdso_image vdso_image_x32;
+#endif
+
+#if defined CONFIG_X86_32 || defined CONFIG_COMPAT
+extern const struct vdso_image vdso_image_32_int80;
+#ifdef CONFIG_COMPAT
+extern const struct vdso_image vdso_image_32_syscall;
+#endif
+extern const struct vdso_image vdso_image_32_sysenter;
+
+extern const struct vdso_image *selected_vdso32;
+#endif
+
+extern void __init init_vdso_image(const struct vdso_image *image);
+
+#endif /* __ASSEMBLER__ */
+
+#endif /* _ASM_X86_VDSO_H */