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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /arch/x86/include/asm/vdso.h | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'arch/x86/include/asm/vdso.h')
-rw-r--r-- | arch/x86/include/asm/vdso.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/x86/include/asm/vdso.h b/arch/x86/include/asm/vdso.h new file mode 100644 index 00000000..bb052285 --- /dev/null +++ b/arch/x86/include/asm/vdso.h @@ -0,0 +1,33 @@ +#ifndef _ASM_X86_VDSO_H +#define _ASM_X86_VDSO_H + +#if defined CONFIG_X86_32 || defined CONFIG_COMPAT +extern const char VDSO32_PRELINK[]; + +/* + * Given a pointer to the vDSO image, find the pointer to VDSO32_name + * as that symbol is defined in the vDSO sources or linker script. + */ +#define VDSO32_SYMBOL(base, name) \ +({ \ + extern const char VDSO32_##name[]; \ + (void *)(VDSO32_##name - VDSO32_PRELINK + (unsigned long)(base)); \ +}) +#endif + +/* + * These symbols are defined with the addresses in the vsyscall page. + * See vsyscall-sigreturn.S. + */ +extern void __user __kernel_sigreturn; +extern void __user __kernel_rt_sigreturn; + +/* + * These symbols are defined by vdso32.S to mark the bounds + * of the ELF DSO images included therein. + */ +extern const char vdso32_int80_start, vdso32_int80_end; +extern const char vdso32_syscall_start, vdso32_syscall_end; +extern const char vdso32_sysenter_start, vdso32_sysenter_end; + +#endif /* _ASM_X86_VDSO_H */ |