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authorAndy Lutomirski <luto@amacapital.net>2014-03-20 15:01:21 -0700
committerH. Peter Anvin <hpa@linux.intel.com>2014-03-20 15:19:14 -0700
commitb67e612cef1e5964efc6fa99fb7ad3d31c4db01a (patch)
treec037de472a7e20c143dc3ca05e3f9327dc917d09 /arch/x86/include/asm
parent4e40112c4ff6a577dd06d92b2a54cdf06265bf74 (diff)
downloadlinux-b67e612cef1e5964efc6fa99fb7ad3d31c4db01a.tar.bz2
x86: Load the 32-bit vdso in place, just like the 64-bit vdsos
This replaces a decent amount of incomprehensible and buggy code with much more straightforward code. It also brings the 32-bit vdso more in line with the 64-bit vdsos, so maybe someday they can share even more code. This wastes a small amount of kernel .data and .text space, but it avoids a couple of allocations on startup, so it should be more or less a wash memory-wise. Signed-off-by: Andy Lutomirski <luto@amacapital.net> Cc: Stefani Seibold <stefani@seibold.net> Link: http://lkml.kernel.org/r/b8093933fad09ce181edb08a61dcd5d2592e9814.1395352498.git.luto@amacapital.net Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/include/asm')
-rw-r--r--arch/x86/include/asm/vdso.h8
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/x86/include/asm/vdso.h b/arch/x86/include/asm/vdso.h
index bde435998f3a..0301d78bb910 100644
--- a/arch/x86/include/asm/vdso.h
+++ b/arch/x86/include/asm/vdso.h
@@ -25,14 +25,6 @@ extern const char VDSO32_PRELINK[];
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;
-
void __init patch_vdso32(void *vdso, size_t len);
#endif /* _ASM_X86_VDSO_H */